Method and device for transmitting information

Abstract

Provided are an information transmission method and apparatus, the information transmission method comprising: a first terminal device determining a first resource according to a first reference point and a first bandwidth, the first reference point being used for determining the position of the first resource, the first bandwidth being the size of the first resource, the size of the first resource is equal to or smaller than the maximum channel bandwidth supported by the first terminal device, and the first terminal device is a first type of terminal device; and the first terminal device sends and / or receives information on the first resource, thereby solving the problem that the working frequency is frequently switched in the network access process of the communication device, effectively saving the power consumption of the communication device, and improving the flexibility of information transmission.

Description

[0001] This application is a divisional application. The application number of the original application is 202110286882.2, the original application date is March 17, 2021, and the entire content of the original application is incorporated herein by reference. Technical Field

[0002] This application relates to the field of communications. In particular, it relates to a method and apparatus for transmitting information. Background Art

[0003] During the process of a communication device accessing a network device, the operating frequencies corresponding to two adjacent uplink transmissions are different, or the operating frequencies corresponding to two adjacent downlink receptions are different, resulting in frequency tuning of the services of the communication device between adjacent uplink transmissions, or resulting in frequency tuning of the services of the communication device between adjacent downlink receptions. The frequent switching of the operating frequencies causes huge power consumption of the communication device. Summary of the Invention

[0004] This application provides a method and apparatus for transmitting information, which can avoid the frequent switching of the operating frequency of a communication device, save power consumption, and improve the flexibility of information transmission.

[0005] In a first aspect, a method for transmitting information is provided. The method may include: a first terminal device obtains first information, where the first information is used to indicate M bandwidth resources, where M is a positive integer, the first terminal device is a first type of terminal device, and the size of each of the M bandwidth resources is equal to or less than the maximum channel bandwidth supported by the first terminal device; the first terminal device obtains a first parameter, where the first parameter is the number of random access channel opportunities multiplexed in frequency within a time unit; the first terminal device determines a first bandwidth resource from the M bandwidth resources according to the first information and the first parameter; the first terminal device transmits uplink information or receives downlink information in the first bandwidth resource.

[0006] The first information may be system information, such as SIB1, and the first parameter may be carried in the random access channel configuration information. The first terminal device is a first type of terminal device, and the first type of terminal device may be a reduced capability UE (REDCAP UE). The characteristics of the first type of terminal device, such as bandwidth, the number of supported or configured resources, the number of transmit antenna ports and / or receive antenna ports, the number of radio frequency channels, the number of hybrid automatic repeat request (HARQ) processes, the supported peak rate, latency requirements, processing capabilities, etc., are at a lower level compared to a second type of terminal device (which may be a legacy UE).

[0007] It should be understood that the sizes of the M bandwidth resources may be the same or different, and the present application does not make any limitation in this regard.

[0008] By configuring at least one bandwidth resource within the range of the maximum bandwidth channel supported by the first terminal device, and the first terminal device determines the first bandwidth resource through the first information and the first parameter, it is possible to avoid frequent switching of the operating frequency of the first terminal device and save power consumption.

[0009] In combination with the first aspect, in some implementation manners of the first aspect, the value of the first parameter is greater than 4.

[0010] When M = 1, the bandwidth resource is the first bandwidth resource, and the first bandwidth resource includes resources of N predefined random access channel opportunities, where the first parameter number of random access channel opportunities includes the N random access channel opportunities, and N is a positive integer.

[0011] Or,

[0012] When M = 1, the bandwidth resource is the first bandwidth resource, and the starting resource block of the first bandwidth resource is the same as the starting resource block of the first random access channel opportunity, and the first random access channel opportunity is indicated by the first indication information.

[0013] Or,

[0014] When M > 1, each of the M bandwidth resources includes resources corresponding to at least one random access channel opportunity.

[0015] In combination with the first aspect, in some implementation manners of the first aspect, the value of the first parameter is 8, and the indexes of the random access channel opportunities arranged in the first order are 0 to 7, and the first order includes the order of frequency from small to large.

[0016] It should be understood that the first order can also be understood as the order from low to high of the positions of the random access channel opportunities in the frequency domain.

[0017] The first terminal device obtains the first indication information.

[0018] The first indication information includes 1 bit, and the first indication information indicates the index of the first random access channel opportunity among the indexes {0, 4}.

[0019] Or,

[0020] The first indication information includes 2 bits, and the first indication information indicates the index of the first random access channel opportunity among the indexes {1, 2, 3, 4}.

[0021] Or,

[0022] The first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity in the index set {0, 1, 2, 3, 4}.

[0023] Alternatively,

[0024] The first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity in the index set {0, 1, 2, 3, 4, 5, 6, 7}.

[0025] Alternatively,

[0026] The first terminal device does not obtain the first indication information, and the index of the first random access channel opportunity is 0.

[0027] It should be understood that when the first indication information includes 3 bits, it can indicate the index in {0, 1, 2, 3, 4}, and the bandwidth resources corresponding to 5 random access channel opportunities can cover the maximum channel bandwidth supported by the first terminal device. The first indication information can also indicate the index of 8 random access channel opportunities.

[0028] It should be understood that the first terminal device does not obtain the first indication information, which may be that the first terminal device does not receive the first indication information, or that the network device is not configured.

[0029] In combination with the first aspect, in some implementation manners of the first aspect, the size of each of the M bandwidth resources is predefined, or M = 2, one of the bandwidth resources includes the resources of random access channel opportunities {0, 1, 2, 3}, and the other bandwidth resource includes the resources of random access channel opportunities {4, 5, 6, 7}, or M>1, and the remaining M-1 bandwidth resources are determined according to the first candidate bandwidth resource, and the first candidate bandwidth resource is indicated by the first signaling.

[0030] It should be understood that the sizes of the M bandwidth resources can all be predefined, or can be determined according to the resources of the random access channel opportunities, or a starting bandwidth resource can be determined according to the random access channel opportunity, and the other bandwidth resources can be arranged in sequence starting from this resource.

[0031] In combination with the first aspect, in some implementation manners of the first aspect, M>1, the first terminal device receives second indication information, and the second indication information is used to indicate the second bandwidth resource; the first terminal device sends a random access preamble in the first bandwidth resource; the first terminal device sends a message 3 in the random access process or sends a physical uplink control channel for feedback on the contention resolution message in the second bandwidth resource.

[0032] That is, when M>1, the second bandwidth resource can also be indicated by indication information, and the first terminal device sends information in the first bandwidth resource and the second bandwidth resource.

[0033] In combination with the first aspect, in some implementation manners of the first aspect, the second indication information is carried in one or more of a random access response message, downlink control information for scheduling a random access response message, a contention resolution message, and downlink control information for scheduling a contention resolution message; and / or, the second indication information is carried in the uplink grant of each media access control random access response in the random access response message.

[0034] In combination with the first aspect, in some implementation manners of the first aspect, M>1, and the first terminal device sends a random access preamble in the first bandwidth resource; the first terminal device receives third indication information, and the third indication information is used to indicate the bandwidth resource for the first terminal device to send message 3 in the random access procedure and / or to send a physical uplink control channel for feedback on the contention resolution message.

[0035] When the bit state of the third indication information is the first bit state, the first terminal device sends message 3 in the random access procedure in the first bandwidth resource, and / or sends a physical uplink control channel for feedback on the contention resolution message in the first bandwidth resource;

[0036] When the bit state of the third indication information is the second bit state, the first terminal device sends message 3 in the random access procedure in the second bandwidth resource, and / or sends a physical uplink control channel for feedback on the contention resolution message in the second bandwidth resource.

[0037] That is, the bandwidth resource for message 3 in the random access procedure and / or the physical uplink control channel for feedback on the contention resolution message can be indicated by the bit state of the third indication information.

[0038] It should be understood that the relationship between the bit state of the third indication information and the indicated bandwidth resource is not used as a limitation.

[0039] In combination with the first aspect, in some implementation manners of the first aspect, the first terminal device obtains fourth indication information, and the fourth indication information is used to indicate that the association configuration between the SSB and the random access is the first association configuration, or the second association configuration; or, if the first terminal device obtains the fourth indication information, the fourth indication information is used to indicate that the association configuration between the SSB and the random access is the second association configuration, and if the first terminal device does not obtain the fourth indication information, the association configuration between the SSB and the random access is the first association configuration.

[0040] That is, the type of the association configuration can be indicated by the content of the fourth indication information, or can also be indicated by the presence or absence of the fourth indication information.

[0041] In a second aspect, a method for determining bandwidth resources is provided. The method may include: A network device sends first information to a first terminal device, where the first information is used to indicate M bandwidth resources, where M is a positive integer, and the size of each of the M bandwidth resources is equal to or less than the maximum channel bandwidth supported by the first terminal device, and the first terminal device is a first type of terminal device; The network device sends a first parameter, where the first parameter is the number of random access channel opportunities for frequency division multiplexing within one time unit; The network device receives uplink information sent by the first terminal device in the first bandwidth resource or sends downlink information to the first terminal device, where the first bandwidth resource is determined by the first terminal device from the M bandwidth resources according to the first information and the first parameter.

[0042] By configuring at least one bandwidth resource within the range of the maximum bandwidth channel supported by the first terminal device, and sending the first information and the first parameter to enable the first terminal device to determine the first bandwidth resource, the method can avoid frequent switching of the operating frequency of the first terminal device and save power consumption.

[0043] In combination with the second aspect, in some implementation manners of the second aspect, the value of the first parameter is greater than 4.

[0044] When M = 1, the M bandwidth resources are the first bandwidth resource, and the first bandwidth resource includes resources for N predefined random access channel opportunities, where the first parameter number of random access channel opportunities includes the N random access channel opportunities, and N is a positive integer.

[0045] Or,

[0046] When M = 1, the network device sends first indication information, where the first indication information is used to indicate a first random access channel opportunity, and the starting resource block of the first bandwidth resource is the same as the starting resource block of the first random access channel opportunity, and the M bandwidth resources are the first bandwidth resource.

[0047] Or,

[0048] When M > 1, each of the M bandwidth resources includes resources corresponding to at least one random access channel opportunity.

[0049] In combination with the second aspect, in some implementation manners of the second aspect, the value of the first parameter is 8, and the indexes of the random access channel opportunities arranged in a first order are 0 to 7, and the first order includes the order of increasing frequency.

[0050] In combination with the second aspect, in some implementation manners of the second aspect, the first indication information includes 1 bit, and the first indication information indicates the index of the first random access channel opportunity among the indexes {0, 4}.

[0051] Alternatively,

[0052] the first indication information includes 2 bits, and the first indication information indicates the index of the first random access channel opportunity in the index {1, 2, 3, 4}.

[0053] Alternatively,

[0054] the first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity in the index {0, 1, 2, 3, 4}.

[0055] Alternatively,

[0056] the first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity in the index {0, 1, 2, 3, 4, 5, 6, 7}.

[0057] Alternatively,

[0058] the network device does not send the first indication information, and the index of the first random access channel opportunity is 0.

[0059] Combined with the second aspect, in some implementations of the second aspect, the size of each of the M bandwidth resources is predefined.

[0060] Alternatively,

[0061] M = 2, one of the bandwidth resources includes resources for random access channel opportunities {0, 1, 2, 3}, and the other bandwidth resource includes resources for random access channel opportunities {4, 5, 6, 7}.

[0062] Alternatively,

[0063] M > 1, the network device sends a first signaling, and the first signaling is used to indicate a first candidate bandwidth resource, and the remaining M - 1 bandwidth resources are determined according to the first candidate bandwidth resource.

[0064] Combined with the second aspect, in some implementations of the second aspect, the network device sends second indication information, and the second indication information is used to indicate a second bandwidth resource; the network device receives a random access preamble in the first bandwidth resource; the network device receives a message 3 in the random access process in the second bandwidth resource, or receives a physical uplink control channel for feedback of a contention resolution message.

[0065] In combination with the second aspect, in some implementations of the second aspect, the second indication information is carried in one or more of a random access response message, downlink control information for scheduling the random access response message, a contention resolution message, and downlink control information for scheduling the contention resolution message; and / or, the second indication information is carried in the uplink grant of each medium access control random access response in the random access response message.

[0066] In combination with the second aspect, in some implementations of the second aspect, M>1, and the network device receives a random access preamble in the first bandwidth resource; the network device sends third indication information, and the third indication information is used to indicate the bandwidth resource for the first terminal device to send message 3 in the random access procedure and / or to send a physical uplink control channel for feedback on the contention resolution message.

[0067] When the bit state of the third indication information is the first bit state, the network device receives message 3 in the random access procedure in the first bandwidth resource, and / or receives a physical uplink control channel for feedback on the contention resolution message in the first bandwidth resource.

[0068] When the bit state of the third indication information is the second bit state, the network device receives message 3 in the random access procedure in the second bandwidth resource, and / or receives a physical uplink control channel for feedback on the contention resolution message in the second bandwidth resource.

[0069] In combination with the second aspect, in some implementations of the second aspect, the network device sends fourth indication information, and the fourth indication information is used to indicate that the association configuration between the SSB and random access is the first association configuration, or the second association configuration.

[0070] If the network device sends fourth indication information, and the fourth indication information is used to indicate that the association configuration between the SSB and random access is the first association configuration, if the network device does not send the fourth indication information, then the association configuration between the SSB and random access is the second association configuration.

[0071] Or, if the network device sends fourth indication information, and the fourth indication information is used to indicate that the association configuration between the SSB and random access is the second association configuration, if the network device does not send the fourth indication information, then the association configuration between the SSB and random access is the first association configuration.

[0072] It should be understood that the extensions, limitations, explanations, and descriptions of the relevant content in the first aspect above also apply to the same content in the second aspect.

[0073] In a third aspect, a method for transmitting information is provided, which may include: a first terminal device determines a first resource according to a first reference point and a first bandwidth, where the first reference point is used to determine the location of the first resource, and the first bandwidth is the bandwidth of the first resource; the first terminal device sends and / or receives information on the first resource, the first terminal device is a first type of terminal device, and the size of the first resource is equal to or less than the maximum channel bandwidth supported by the first terminal device; the first terminal device sends uplink information within the first resource, and / or, the first terminal device receives downlink information within the first resource.

[0074] This method provides a determined reference point and bandwidth, avoiding the need for the first terminal device to determine the first resource through multiple detections, reducing the computational complexity of the first terminal device, and saving power consumption.

[0075] In combination with the third aspect, in some implementation manners of the third aspect, the first bandwidth may be determined according to one or more of the sub-band size reported by CSI, the sub-carrier spacing, and the maximum channel bandwidth supported by the first terminal device.

[0076] It should be understood that the first resource may also be determined according to the first reference point and a first offset, and the first offset may also be determined according to one or more of the sub-band size reported by CSI, the sub-carrier spacing, and the maximum channel bandwidth supported by the first terminal device.

[0077] It should be understood that the maximum channel bandwidth supported by the first terminal device may be a transmission bandwidth, and the transmission bandwidth may be the number of resource blocks corresponding to the maximum channel bandwidth under different sub-carrier spacings.

[0078] In combination with the third aspect, in some implementation manners of the third aspect, there is an association relationship between the maximum channel bandwidth supported by the first terminal device and the sub-carrier spacing.

[0079] It should be understood that the association relationship may be indicated by indication information or may be predefined.

[0080] In combination with the third aspect, in some implementation manners of the third aspect, the first bandwidth may be determined according to a positive integer multiple of the size of the maximum channel bandwidth supported by the first terminal device.

[0081] In combination with the third aspect, in some implementation manners of the third aspect, the first bandwidth may be determined according to the least common multiple of the sizes of multiple items among the sub-band size reported by CSI, the sub-carrier spacing, and the maximum channel bandwidth supported by the first terminal device, or the first offset may be determined.

[0082] In combination with the third aspect, in some implementation manners of the third aspect, the first terminal device may receive indication information for indicating a first reference point. The first reference point may be one or more of the first resource block of the second resource, the central frequency or central subcarrier of the second resource, the last resource block of the second resource, the common resource block 0, and Point A. Or,

[0083] wherein, the second resource is a resource configured for a second terminal device, and the number of resource blocks included in the second resource can be greater than the number of resource blocks corresponding to the maximum channel bandwidth of the first terminal device.

[0084] It should be understood that the indication information may be carried in SIB1 or SIB1 PDCCH.

[0085] It should also be understood that the first reference point may be indicated by the indication information or may be predefined.

[0086] In combination with the third aspect, in some implementation manners of the third aspect, the position of the first resource may be determined according to the first reference point and the first offset.

[0087] In combination with the third aspect, in some implementation manners of the third aspect, the first offset may be N resource blocks spaced between the first resource and the common resource block 0. The position of the first resource may be MOD (the first reference point + the first offset, BW); or MOD (BW, the reference point of the first resource - the first offset), where BW is the bandwidth of the second resource or the carrier bandwidth.

[0088] It should be understood that there is an association relationship between the first offset and the subcarrier spacing, and it may be indicated by the indication information or may be predefined.

[0089] Receive second information indicating at least two of the first bandwidth, the first reference point, and the first offset.

[0090] Fourth aspect, a method for transmitting information is provided. The method may include: The network device may send the first reference point and the first bandwidth to the first terminal device. The first reference point is used to determine the position of the first resource, and the first bandwidth is the bandwidth of the first resource. The network device sends and / or receives information on the first resource, where the first resource is determined by the first terminal device according to the first reference point and the first bandwidth. The first terminal device is a first type of terminal device, and the size of the first resource is equal to or less than the maximum channel bandwidth supported by the first terminal device.

[0091] This method provides a determined reference point and bandwidth, avoiding the need for the first terminal device to determine the first resource through multiple detections, reducing the computational complexity of the first terminal device, and saving power consumption.

[0092] It should be understood that it is optional for the network device to send the first reference point and the first bandwidth, and the first reference point and the first bandwidth can also be predefined.

[0093] Combined with the fourth aspect, in some implementation manners of the fourth aspect, the first bandwidth can be determined by one or more of the sub-band size for CSI reporting, the sub-carrier spacing, and the maximum channel bandwidth supported by the first terminal device.

[0094] It should be understood that the first bandwidth can also be determined according to the first reference point and the first offset, and the first offset can also be determined by one or more of the sub-band size for CSI reporting, the sub-carrier spacing, and the maximum channel bandwidth supported by the first terminal device.

[0095] It should be understood that the maximum channel bandwidth supported by the first terminal device can be the transmission bandwidth, and the transmission bandwidth can be the number of resource blocks corresponding to the maximum channel bandwidth under different sub-carrier spacings.

[0096] Combined with the fourth aspect, in some implementation manners of the fourth aspect, there is an association relationship between the maximum channel bandwidth supported by the first terminal device and the sub-carrier spacing.

[0097] It should be understood that the association relationship can be indicated by the network device sending indication information, or can be predefined.

[0098] Combined with the fourth aspect, in some implementation manners of the fourth aspect, the network device can determine the first bandwidth according to a positive integer multiple of the size of the maximum channel bandwidth supported by the first terminal device.

[0099] Combined with the fourth aspect, in some implementation manners of the fourth aspect, the network device can determine the first bandwidth according to the least common multiple of the sizes of multiple items among the sub-band size for CSI reporting, the sub-carrier spacing, and the maximum channel bandwidth supported by the first terminal device, or determine the first offset.

[0100] Combined with the fourth aspect, in some implementation manners of the fourth aspect, the network device can send indication information, and the indication information is used to indicate the first reference point. The first reference point can be one or more of the first RB of the second resource, the center frequency or center sub-carrier of the second resource, the last RB of the second resource, common resource block 0, and Point A, where the second resource is the resource configured for the second terminal device, and the number of resource blocks included in the second resource can be greater than the number of resource blocks corresponding to the maximum channel bandwidth of the first terminal device.

[0101] It should be understood that the indication information can be carried in SIB1, SIB1 PDCCH.

[0102] It should also be understood that the first reference point can be indicated by the indication information, or can be predefined.

[0103] In combination with the fourth aspect, in some implementations of the fourth aspect, a network device may send a first reference point and a first offset, and the position of the first resource may be determined according to the first reference point and the first offset.

[0104] In combination with the fourth aspect, in some implementations of the fourth aspect, the first offset may be N RBs spaced between the first resource and the common resource block 0. The position of the first resource may be MOD (first reference point + first offset, BW); or, MOD (BW, reference point of the first resource - first offset), where BW is the bandwidth of the second resource or the carrier bandwidth.

[0105] It should be understood that there is an association relationship between the first offset and the subcarrier spacing, which may be indicated by the network device sending indication information or may be predefined.

[0106] In a fifth aspect, a communication device is provided, which may include:

[0107] a transceiver unit, configured to receive first information for indicating M bandwidth resources, where M is a positive integer, and the size of each of the M bandwidth resources is equal to or less than the maximum channel bandwidth supported by the first type of terminal device; the transceiver unit is further configured to receive a first parameter, where the first parameter is the number of random access channel opportunities for frequency division multiplexing within one time unit;

[0108] a processing unit, configured to determine a first bandwidth resource from the M bandwidth resources according to the first information and the first parameter;

[0109] the transceiver unit is further configured to send uplink information or receive downlink information in the first bandwidth resource.

[0110] In combination with the fifth aspect, in some implementations of the fifth aspect, the value of the first parameter is greater than 4,

[0111] When M = 1, the M bandwidth resources are the first bandwidth resource, and the first bandwidth resource includes resources for N predefined random access channel opportunities, where the first parameter number of random access channel opportunities includes the N random access channel opportunities, and N is a positive integer.

[0112] Or,

[0113] When M = 1, the M bandwidth resources are the first bandwidth resource, and the transceiver unit is specifically configured to receive first indication information for indicating a first random access channel opportunity, and the starting resource block of the first bandwidth resource is the same as the starting resource block of the first random access channel opportunity.

[0114] When M>1, each of the M bandwidth resources includes resources corresponding to at least one random access channel opportunity.

[0115] In combination with the fifth aspect, in some implementations of the fifth aspect, the value of the first parameter is 8, the indexes of the random access channel opportunities arranged in the first order are 0 to 7, and the first order includes the order of increasing frequency.

[0116] In combination with the fifth aspect, in some implementations of the fifth aspect, the transceiver unit receives the first indication information, the first indication information includes 1 bit, and the first indication information indicates the index of the first random access channel opportunity among the indexes {0, 4}, or the first indication information includes 2 bits, and the first indication information indicates the index of the first random access channel opportunity among the indexes {1, 2, 3, 4}, or the first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity among the indexes {0, 1, 2, 3, 4}, or the first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity among the indexes {0, 1, 2, 3, 4, 5, 6, 7}, or the transceiver unit does not receive the first indication information, and the index of the first random access channel opportunity is 0.

[0117] In combination with the fifth aspect, in some implementations of the fifth aspect, the size of each of the M bandwidth resources is predefined.

[0118] Or

[0119] When M = 2, one of the bandwidth resources includes resources of random access channel opportunities {0, 1, 2, 3}, and the other bandwidth resource includes resources of random access channel opportunities {4, 5, 6, 7}.

[0120] Or

[0121] When M>1, the processing unit is specifically configured to receive a first signaling, the first signaling is used to indicate a first candidate bandwidth resource, and the processing unit is specifically configured to determine the remaining M - 1 bandwidth resources according to the first candidate bandwidth resource.

[0122] In combination with the fifth aspect, in some implementations of the fifth aspect, M>1.

[0123] The transceiver unit is specifically configured to receive second indication information, the second indication information is used to indicate a second bandwidth resource, and the transceiver unit is further configured to send a random access preamble in the first bandwidth resource.

[0124] The transceiver unit is further configured to send Message 3 in the random access procedure in the second bandwidth resource, or send a physical uplink control channel for feedback on the contention resolution message.

[0125] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the second indication information is carried in one or more of a random access response message, downlink control information for scheduling the random access response message, a contention resolution message, and downlink control information for scheduling the contention resolution message; and / or, the second indication information is carried in the uplink grant of each medium access control random access response in the random access response message.

[0126] In combination with the fifth aspect, in some implementation manners of the fifth aspect, M>1, and the transceiver unit is specifically configured to send a random access preamble in the first bandwidth resource and receive third indication information, where the third indication information is used to indicate the bandwidth resource for the transceiver unit to send Message 3 in the random access procedure and / or send a physical uplink control channel for feedback on the contention resolution message.

[0127] In combination with the fifth aspect, in some implementation manners of the fifth aspect, when the bit state of the third indication information is the first bit state, the transceiver unit sends Message 3 in the random access procedure in the first bandwidth resource, and / or sends a physical uplink control channel for feedback on the contention resolution message in the first bandwidth resource;

[0128] When the bit state of the third indication information is the second bit state, the transceiver unit sends Message 3 in the random access procedure in the second bandwidth resource, and / or sends a physical uplink control channel for feedback on the contention resolution message in the second bandwidth resource.

[0129] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the transceiver unit receives fourth indication information, where the fourth indication information is used to indicate that the association configuration between the SSB and the random access channel opportunity is the first association configuration, or the second association configuration, and the association configuration is the association configuration between the SSB and the number of random access channel opportunities.

[0130] In combination with the fifth aspect, in some implementation manners of the fifth aspect, if the transceiver unit receives the fourth indication information, where the fourth indication information is used to indicate that the association configuration between the SSB and the random access channel opportunity is the first association configuration, and if the transceiver unit does not receive the fourth indication information, the association configuration between the SSB and the random access channel opportunity is the second association configuration,

[0131] Or,

[0132] If the transceiver unit receives fourth indication information for indicating that the association configuration of the SSB and the random access channel opportunity is configured as a second association configuration, and if the transceiver unit does not receive the fourth indication information, the association configuration of the SSB and the random access channel opportunity is a first association configuration.

[0133] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the first parameter is carried in the random access channel configuration information.

[0134] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the first information includes system information.

[0135] A sixth aspect provides a communication device, which may include a transceiver unit for sending a first parameter to a first terminal device, where the first parameter is the number of random access channel opportunities multiplexed in frequency within one time unit; a processing unit for configuring M bandwidth resources, where the size of each of the M bandwidth resources is equal to or less than the maximum channel bandwidth supported by the first terminal device; and the transceiver unit is further configured to receive uplink information sent by the first terminal device or send downlink information to the first terminal device in a first bandwidth resource, where the first bandwidth resource is determined by the first terminal device from the M bandwidth resources according to the first information and the first parameter.

[0136] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the value of the first parameter is greater than 4.

[0137] When M = 1, the M bandwidth resources are the first bandwidth resource, and the first bandwidth resource includes resources of N predefined random access channel opportunities, where the first parameter number of random access channel opportunities includes the N random access channel opportunities, and N is a positive integer.

[0138] Or,

[0139] When M = 1, the transceiver unit sends first indication information for indicating a first random access channel opportunity, where the starting resource block of the first bandwidth resource is the same as the starting resource block of the first random access channel opportunity, and the M bandwidth resources are the first bandwidth resource.

[0140] Or,

[0141] When M>1, each of the M bandwidth resources includes resources corresponding to at least one random access channel opportunity.

[0142] In combination with the sixth aspect, in some implementations of the sixth aspect, the value of the first parameter is 8, the indexes of the random access channel opportunities are arranged in a first order from 0 to 7, and the first order includes the order of increasing frequency.

[0143] In combination with the sixth aspect, in some implementations of the sixth aspect, the first indication information includes 1 bit, and the first indication information indicates the index of the first random access channel opportunity among indexes {0, 4}.

[0144] Or

[0145] the first indication information includes 2 bits, and the first indication information indicates the index of the first random access channel opportunity among indexes {1, 2, 3, 4}.

[0146] Or

[0147] the first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity among indexes {0, 1, 2, 3, 4}.

[0148] Or

[0149] the first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity among indexes {0, 1, 2, 3, 4, 5, 6, 7}.

[0150] Or

[0151] The transceiver unit does not send the first indication information, and the index of the first random access channel opportunity is equal to 0.

[0152] In combination with the sixth aspect, in some implementations of the sixth aspect, the first information is used to indicate M bandwidth resources.

[0153] The size of each of the M bandwidth resources is predefined.

[0154] Or

[0155] M = 2, one of the bandwidth resources includes resources of random access channel opportunities {0, 1, 2, 3}, and the other bandwidth resource includes resources of random access channel opportunities {4, 5, 6, 7}.

[0156] Or

[0157] M > 1, the transceiver unit is further configured to send a first signaling, and the first signaling is used to indicate a first candidate bandwidth resource, and the remaining M - 1 bandwidth resources are determined according to the first candidate bandwidth resource.

[0158] In combination with the sixth aspect, in some implementations of the sixth aspect, M>1, and the transceiver unit is further configured to send second indication information, where the second indication information is used to indicate second bandwidth resources, receive a random access preamble in the first bandwidth resource, receive message 3 in the random access procedure in the second bandwidth resource, or receive a physical uplink control channel for feedback on a contention resolution message.

[0159] In combination with the sixth aspect, in some implementations of the sixth aspect, the second indication information is carried in one or more of a random access response message, downlink control information for scheduling a random access response message, a contention resolution message, and downlink control information for scheduling a contention resolution message, and / or the second indication information is carried in the uplink grant of each media access control random access response in the random access response message.

[0160] In combination with the sixth aspect, in some implementations of the sixth aspect, M>1, and the transceiver unit is specifically configured to receive a random access preamble in the first bandwidth resource and send third indication information, where the third indication information is used to indicate the bandwidth resources for the first terminal device to send message 3 in the random access procedure and / or send a physical uplink control channel for feedback on a contention resolution message.

[0161] In combination with the sixth aspect, in some implementations of the sixth aspect, when the bit state of the third indication information is the first bit state, the transceiver unit receives message 3 in the random access procedure in the first bandwidth resource and / or receives a physical uplink control channel for feedback on a contention resolution message in the first bandwidth resource,

[0162] when the bit state of the third indication information is the second bit state, the transceiver unit receives message 3 in the random access procedure in the second bandwidth resource and / or receives a physical uplink control channel for feedback on a contention resolution message in the second bandwidth resource.

[0163] In combination with the sixth aspect, in some implementations of the sixth aspect, the transceiver unit is further configured to send fourth indication information, where the fourth indication information is used to indicate that the association configuration between the SSB and the random access channel opportunity is the first association configuration, or the second association configuration.

[0164] In combination with the sixth aspect, in some implementations of the sixth aspect, if the transceiver unit sends the fourth indication information, the fourth indication information is used to indicate that the association configuration between the SSB and the random access channel opportunity is the first association configuration, and if the transceiver unit does not send the fourth indication information, the association configuration between the SSB and the random access channel opportunity is the second association configuration,

[0165] Or,

[0166] If the transceiver unit sends fourth indication information, the fourth indication information is used to indicate that the association configuration of the SSB and the random access channel opportunity is the second association configuration. If the transceiver unit does not send the fourth indication information, the association configuration of the SSB and the random access channel opportunity is the first association configuration.

[0167] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the first parameter is carried in the random access channel configuration information.

[0168] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the first information includes system information.

[0169] In a seventh aspect, a communication device is provided, and the communication device is used to implement the method of the first aspect or the third aspect, or any possible implementation manner in the first aspect or the third aspect, or all possible implementation manners in the first aspect or the third aspect.

[0170] In an eighth aspect, a communication device is provided, and the communication device is used to implement the second aspect or the fourth aspect, or any possible implementation manner in the second aspect or the fourth aspect, or all possible implementation manners in the second aspect or the fourth aspect.

[0171] In a ninth aspect, a communication device is provided, and the device includes: a memory for storing a program; a processor for executing the program stored in the memory. When the program stored in the memory is executed, the processor is used to execute the method performed by the first terminal device in the first aspect or the third aspect and any one implementation manner in the first aspect or the third aspect.

[0172] In a tenth aspect, a communication device is provided, and the device includes: a memory for storing a program; a processor for executing the program stored in the memory. When the program stored in the memory is executed, the processor is used to execute the method performed by the network device in the second aspect or the fourth aspect and any one implementation manner in the second aspect or the fourth aspect.

[0173] In an eleventh aspect, a computer-readable medium is provided, and the computer-readable medium stores program code for a device to execute. The program code includes the method performed by the first terminal device in any one implementation manner in the first aspect or the third aspect.

[0174] In a twelfth aspect, a computer-readable medium is provided, and the computer-readable medium stores program code for a device to execute. The program code includes the method performed by the network device in any one implementation manner in the second aspect or the fourth aspect.

[0175] In a thirteenth aspect, a computer program product including instructions is provided. When the computer program product runs on a computer, it causes the computer to execute the method in any one of the implementations of the first aspect or the second aspect above.

[0176] In a fourteenth aspect, a chip is provided. The chip includes a processor and a data interface. The processor reads instructions stored on a memory through the data interface and executes the method in any one of the implementations of the first aspect, the second aspect, the third aspect, or the fourth aspect above.

[0177] In a fifteenth aspect, a system is provided. The system includes any possible implementation of the fifth aspect, the sixth aspect, the seventh aspect, the eighth aspect, the ninth aspect, or the tenth aspect, or a device of all possible implementations of the fifth aspect, the sixth aspect, the seventh aspect, the eighth aspect, the ninth aspect, or the tenth aspect.

[0178] Optionally, as an implementation, the chip may further include a memory. Instructions are stored in the memory, and the processor is configured to execute the instructions stored on the memory. When the instructions are executed, the processor is configured to execute the method in any one of the implementations of the first aspect, the second aspect, the third aspect, or the fourth aspect.

[0179] The above chip may specifically be a field-programmable gate array (FPGA) or an application-specific integrated circuit (ASIC). BRIEF DESCRIPTION OF THE DRAWINGS

[0180] Figure 1 is a schematic diagram of the architecture of a communication system applicable to an embodiment of the present application.

[0181] Figure 2 shows a schematic flowchart of a method for transmitting information according to an embodiment of the present application.

[0182] Figure 3 shows a schematic diagram of a method for transmitting information applicable to an embodiment of the present application.

[0183] Figure 4 shows a schematic diagram of another method for transmitting information applicable to an embodiment of the present application.

[0184] Figure 5 shows a schematic diagram of a resource distribution applicable to an embodiment of the present application.

[0185] Figure 6 shows a schematic diagram of a resource applicable to an embodiment of the present application.

[0186] Figure 7 Shows a schematic diagram of a resource applicable to the embodiments of the present application.

[0187] Figure 8 Shows a schematic diagram of a resource distribution applicable to the embodiments of the present application.

[0188] Figure 9 Shows a schematic diagram of a method for determining the resource location applicable to the embodiments of the present application.

[0189] Figure 10 Shows a schematic diagram of a resource location applicable to the embodiments of the present application.

[0190] Figure 11 Shows a schematic flowchart of a method for transmitting information according to the embodiments of the present application.

[0191] Figure 12 Shows a schematic diagram of a resource applicable to the embodiments of the present application.

[0192] Figure 13 Shows a schematic diagram of a method for determining the resource location applicable to the embodiments of the present application.

[0193] Figure 14 Shows a schematic block diagram of a communication device according to the embodiments of the present application.

[0194] Figure 15 Shows a schematic block diagram of another communication device according to the embodiments of the present application. Detailed implementation manners

[0195] Next, the technical solutions in the present application will be described in conjunction with the accompanying drawings.

[0196] Embodiments of the present application can be applied to various communication systems, such as Wireless Local Area Network (WLAN), Narrow Band-Internet of Things (NB-IoT), Global System for Mobile Communications (GSM), Enhanced Data rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access 2000 (CDMA2000), Time Division-Synchronization Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), satellite communication, 5th generation (5G) system, or new communication systems that may emerge in the future, etc.

[0197] Mobile communication technology has profoundly changed people's lives, but people's pursuit of higher-performance mobile communication technology has never stopped. To cope with the future explosive growth of mobile data traffic, massive connections of mobile communication devices, and various emerging new services and application scenarios, the 5G mobile communication system has emerged as the times require. The International Telecommunication Union (ITU) has defined three major categories of application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), ultra reliable and low latency communications (URLLC), and massive machine type communications (mMTC).

[0198] Typical eMBB services include: ultra-high-definition video, augmented reality (AR), virtual reality (VR), etc. The main characteristics of these services are large amounts of transmitted data and very high transmission rates. Typical URLLC services include: wireless control in industrial manufacturing or production processes, motion control of driverless cars and drones, and tactile interaction applications such as remote repair and remote surgery. The main characteristics of these services are extremely high reliability, low latency, relatively small amounts of transmitted data, and burstiness. Typical mMTC services include: smart grid distribution automation, smart cities, etc. The main characteristics are a huge number of connected devices, relatively small amounts of transmitted data, and data being insensitive to transmission latency. These mMTC terminals need to meet the requirements of low cost and very long standby times.

[0199] Different services have different requirements for the mobile communication system. How to better support the data transmission requirements of multiple different services simultaneously is a technical problem that the current 5G mobile communication system needs to solve. For example, how to support mMTC services and eMBB services simultaneously, or support URLLC services and eMBB services simultaneously.

[0200] The research on mMTC in the 5G standard has not been widely carried out.

[0201] Currently, in the standard, the user equipment (UE) of mMTC services is referred to as a reduced capability UE (REDCAP UE), or a narrow-bandwidth user equipment, or an IoT device, or a low-end intelligent handheld terminal. This type of UE may be less complex than other UEs in terms of bandwidth, power consumption, number of antennas, etc., such as narrower bandwidth, lower power consumption, fewer antennas, etc. This type of UE can also be referred to as a lightweight terminal device (NR light, NRL). The maximum bandwidth supported by mMTC user equipment is less than 100 MHz. It should be noted that the mMTC user equipment in this application is not only a device for machine-type communication, but can also be an intelligent handheld terminal.

[0202] Schematic diagram of the architecture of the mobile communication system applied in the embodiments of this application. As Figure 1 shown, this mobile communication system includes a radio access network device 120, i.e., a network device 120, and at least one terminal device (such as Figure 1The terminal devices 130, 140, and 150). The terminal devices are connected to the radio access network device wirelessly, and the radio access network device is connected to the core network device wirelessly or wired. The core network device and the radio access network device can be independent different physical devices, or the functions of the core network device and the logical functions of the radio access network device can be integrated on the same physical device, or the functions of part of the core network device and part of the radio access network device can be integrated on one physical device. The terminal device can be fixed in position or movable. Figure 1 This is only a schematic diagram, and other network devices may also be included in this communication system. For example, wireless relay devices and wireless backhaul devices may also be included. They are not drawn in Figure 1 this figure. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in this mobile communication system.

[0203] It should be understood that the information sending end in the communication system of the present application can be a network device or a terminal device, and the information receiving end can be a network device or a terminal device. The present application does not make any limitations in this regard, as long as there is a first type of terminal device participating in the communication in the communication system.

[0204] The embodiments of the present application take the network device and the first terminal device as the two parties for interaction as an example to present the solution, but this is not limited.

[0205] The radio access network device is an access device through which the terminal device accesses this mobile communication system wirelessly. It can be a base station NodeB, an evolved base station (Evolved Node B, eNodeB), a base station in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the radio access network device.

[0206] The terminal device can also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, and so on.

[0207] The radio access network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and can also be deployed on airplanes, balloons and satellites in the air. The embodiments of the present application do not limit the application scenarios of the radio access network device and the terminal device.

[0208] The embodiments of the present application can be applied to downlink signal transmission, can also be applied to uplink signal transmission, and can also be applied to device-to-device (D2D) signal transmission. For downlink signal transmission, the transmitting device is the radio access network device, and the corresponding receiving device is the terminal device. For uplink signal transmission, the transmitting device is the terminal device, and the corresponding receiving device is the radio access network device. For D2D signal transmission, the transmitting device is the terminal device, and the corresponding receiving device is also the terminal device. The embodiments of the present application do not limit the transmission direction of the signal.

[0209] The radio access network device and the terminal device can communicate with each other through licensed spectrum, can also communicate through unlicensed spectrum, and can also communicate through licensed spectrum and unlicensed spectrum simultaneously. The radio access network device and the terminal device can communicate through spectrum below 6G, can also communicate through spectrum above 6G, and can also use spectrum below 6G and spectrum above 6G simultaneously. The embodiments of the present application do not limit the spectrum resources used between the radio access network device and the terminal device.

[0210] To facilitate the understanding of this application, a brief description of the random access process is provided. The random access process is as follows:

[0211] The terminal device searches for synchronization signals and the Physical Broadcast Channel (SSB). By searching for the SSB, the terminal device obtains the Master Information Block (MIB) sent by the network device. The terminal device obtains the time-domain resources and frequency-domain resources of the Control Resource Set (CORESET) according to the MIB. The terminal device can detect the Downlink Control Information (DCI) for scheduling the System Information Block (SIB) on the CORESET, and receive SIB1 at the time-frequency position indicated by the DCI. In this way, information such as the initial uplink bandwidth part (Initial UL BWP), the initial downlink bandwidth part (Initial DL BWP), the random access preamble list, and the random access occasion list can be received in SIB1.

[0212] According to SIB1, the terminal device sends a Physical Random Access Channel (PRACH) carrying a random access preamble (i.e., Msg1) in the random access occasion (RO) resources associated with the SSB.

[0213] If the base station successfully receives the random access preamble and allows the UE to access, it sends a Random Access Response (RAR), i.e., Msg2, to the UE within the preconfigured window of the RAR.

[0214] Meanwhile, within the pre-configured RAR window, the UE monitors the downlink control information (DCI) transmitted on the physical downlink control channel (PDCCH). This DCI is used to instruct the UE to obtain RAR information from the media access control (MAC) protocol data unit (PDU) carried on the physical downlink shared channel (PDSCH).

[0215] It should be understood that if the base station fails to receive the preamble due to reasons such as random access preamble conflicts between different UEs or poor channel conditions, the base station will not send RAR information. Then, the UE will not detect DCI and MAC RAR in the RAR window, and this random access fails.

[0216] After successfully detecting the DCI, the terminal receives the random access response RAR (i.e., Msg2), and sends the physical uplink shared channel (PUSCH, i.e., Msg3) according to the time-frequency resources indicated by the uplink grant in the random access response. The network device then sends DCI to the terminal device, and this DCI indicates the time-frequency resources carrying the contention resolution message, i.e., Msg4. The terminal device detects this DCI and receives Msg4.

[0217] It should be noted that before establishing a connection in radio resource control (RRC), the UE needs to receive within CORESET 0: the PDCCH scheduling SIB1, the PDSCH carrying SIB1, the PDCCH scheduling SI, the PDSCH carrying SI, the PDCCH scheduling Msg2, the PDSCH carrying Msg2, the PDCCH scheduling Msg3, the PDCCH scheduling Msg4, and the PDSCH carrying Msg4. Before establishing a connection in radio resource control (RRC), the UE needs to send Msg1, the PUSCH carrying Msg3, and the PUCCH for feedback on Msg4 within the initial UL BWP.

[0218] To facilitate understanding of the embodiments of the present application, the following briefly introduces the related concepts involved in the present application:

[0219] 1. The UEs in this application can be divided into the first type of terminal device and the second type of terminal device. The first type of terminal device is, for example, a reduced capability UE (REDCAP UE), and the second type of terminal device can be a legacy UE, such as an eMBB UE.

[0220] The first type of terminal device and the second type of terminal device have different characteristics, and the characteristics include one or more of the following:

[0221] Bandwidth, the number of supported or configured resources, the number of transmit antenna ports and / or receive antenna ports, the number of radio frequency channels, the number of hybrid automatic repeat request (HARQ) processes, the supported peak rate, application scenarios, latency requirements, processing capabilities, protocol versions, duplex modes, services, etc. The following describes the first characteristic in detail.

[0222] Bandwidth, or channel bandwidth, or the maximum channel bandwidth supported or configured by the terminal device. The bandwidths of the first type of terminal device and the second type of terminal device are different. For example, the bandwidth of the first type of terminal device can be 20 MHz or 10 MHz or 5 MHz, and the bandwidth of the second type of terminal device can be 100 MHz. It can be understood that with the development of communication technologies, the maximum channel bandwidth supported by the first type of terminal device may no longer be 20 MHz or 10 MHz or 5 MHz, but may evolve into a wider or narrower bandwidth, such as 3 MHz, 25 MHz, 50 MHz.

[0223] The number of supported or configured resources. The number of resources can be the number of RBs, REs, subcarriers, RB groups, REG bundles, control channel elements, subframes, radio frames, time slots, mini time slots, and / or symbols. The number of resources supported or configured by the first type of terminal device and the second type of terminal device is different. For example, the number of resources supported by the first type of terminal device is 48 RBs, and the number of resources supported by the second type of terminal device is 96 RBs.

[0224] The number of transmit antenna ports and / or receive antenna ports, that is, the number of transmit antenna ports and / or receive antenna ports of the first type of terminal device is different from that of the second type of terminal device. For example, the number of transmit antenna ports of the first type of terminal device can be 1, and the number of receive antenna ports can be 2. The number of transmit antenna ports of the second type of terminal device can be 2, and the number of receive antenna ports can be 4.

[0225] The number of radio frequency channels, that is, the number of radio frequency channels of the first type of terminal device is different from that of the second type of terminal device. For example, the number of radio frequency channels of the first type of terminal device can be 1, and the number of radio frequency channels of the second type of terminal device can be 2.

[0226] The number of HARQ processes, i.e., the number of HARQ processes supported by the first type of terminal device is different from that of the second type of terminal device. For example, the number of HARQ processes of the first type of terminal device can be 8, and the number of HARQ processes of the second type of terminal device can be 16.

[0227] The supported peak rate, i.e., the maximum peak rates of the first type of terminal device and the second type of terminal device are different. For example, the maximum peak rate supported by the first type of terminal device can be 100 Mbps, and the peak rate supported by the second type of terminal device can be 200 Mbps.

[0228] The application scenarios, i.e., the first type of terminal device and the second type of terminal device serve different application scenarios. For example, the first type of terminal device is applied to industrial wireless sensing, video surveillance, wearable devices, etc., and the second type of terminal device is applied to mobile communication, video Internet access, etc.

[0229] The latency requirements, i.e., the requirements for transmission latency of the first type of terminal device and the second type of terminal device are different. For example, the latency requirement of the first type of terminal device can be 500 milliseconds, and the latency requirement of the second type of terminal device can be 100 milliseconds.

[0230] The processing capabilities, i.e., under different subcarrier space (SCS) conditions, the processing timings and speeds of the first type of terminal device and the second type of terminal device for channels or data are different. For example, the first type of terminal device does not support complex operations, and the complex operations can include: artificial intelligence (AI), virtual reality (VR) rendering. The second type of terminal device supports complex operations, or it can be understood that the processing capability of the first type of terminal device is lower than that of the second type of terminal device.

[0231] The protocol versions, i.e., the first type of terminal device and the second type of terminal device belong to terminal devices of different protocol versions. For example, the protocol versions supported by the first type of terminal device are Release 17 and protocol versions after Release 17, and the protocol versions supported by the second type of terminal device are protocol versions before Release 17, such as Release 15 or Release 16.

[0232] The duplex mode, the duplex mode includes half-duplex and full-duplex. For example, the first type of terminal device operates in a half-duplex mode, and the second type of terminal device operates in a full-duplex mode.

[0233] Services, including but not limited to Internet of Things applications such as video surveillance, mobile broadband MBB, etc. For example, the service supported by the first type of terminal device is video surveillance, and the service supported by the second type of terminal device is mobile broadband MBB. The embodiments of the present application do not limit this.

[0234] It should be understood that other types of terminal devices, or future new types of terminal devices that also support the technical solutions of the present application, are also within the protection scope of the present application.

[0235] The first terminal device in the present application may be an example of the first type of terminal device, and the second terminal device may be an example of the second type of terminal device.

[0236] 2. Initial downlink bandwidth part (Initial DL BWP): Indicated in SIB1, the frequency range includes CORESET, but it will only take effect after the reception of Msg4 is completed.

[0237] 3. Initial uplink bandwidth part (Initial UL BWP): Indicated in SIB1, the uplink channels PRACH, Msg3, and HARQ-ACK feedback of Msg4 involved in the initial access process are all carried out within the range of the initial UL BWP.

[0238] 4. CORESET: Control resource set. The terminal device is receiving downlink control information or downlink data information within the CORESET. When the terminal device has not established an RRC connection with the peer device, the frequency range for receiving the downlink control channel and the downlink data channel is within CORESET 0.

[0239] 5. Downlink bandwidth part (DL BWP): The downlink working bandwidth configured by the network device for the terminal device after the terminal device is connected to the network device.

[0240] 6. Uplink bandwidth part (UL BWP): The uplink working bandwidth configured by the network device for the terminal device after the terminal device is connected to the network device.

[0241] It should be understood that the low-complexity terminal device is a relative concept, and the present application does not limit this. By way of example, for a new type of terminal device that may be developed in the future, if its characteristics in at least one aspect such as bandwidth, number of antennas, device power consumption, etc. are more complex than those of the existing legacy UE, then the legacy UE will be the first type of terminal device in the present application, and the new type of terminal device will be the second type of terminal device in the present application. The embodiments of the present application are still applicable and within the protection scope of the present application.

[0242] 7. Center frequency: The center frequency of a resource block, or the resource block with an index at the center within the bandwidth

[0243] Starting resource block (Resource block, RB): The resource block with the smallest index within the bandwidth, or the first resource block within the bandwidth.

[0244] Ending resource block (Resource block, RB): The resource block with the largest index within the bandwidth, or the last resource block within the bandwidth.

[0245] It should be understood that the resources in the present application can be symbols, or time slots, or mini time slots, or subframes, etc. The resources in the present application can also be subcarriers, or resource blocks, or carriers, or channel control elements, etc.

[0246] When the resource in the present application is a symbol, the resource unit can be a time slot, or a short time slot, or a subframe. When the resource in the present application is a subcarrier, the resource unit is a resource block, or a carrier, or a channel control element, etc.

[0247] For the convenience of understanding the embodiments of the present application, relevant terms are explained in advance.

[0248] In the embodiments of the present application, there are different descriptions for resources. For example, the first resource, and for another example, the bandwidth resource.

[0249] The first resource can be an uplink BWP, or a downlink BWP, or an initial downlink BWP, or an initial uplink BWP. The size of the first resource is equal to or less than the maximum channel bandwidth supported by the first terminal device. The first control resource set is expressed as CORESET a. For example, before the establishment of the RRC connection, CORESET a is CORESET 0; for example, before or after the establishment of the RRC connection, CORESET a can also be a common CORESET, and at least one RB of the common CORESET may not be within the range of CORESET 0, that is, CORESET a and CORESET 0 can be different CORESETS.

[0250] The bandwidth resource can be a BWP, or a resource whose size is equal to or less than the maximum channel bandwidth supported by the first terminal device. For example, the bandwidth resource can be the initial uplink BWP. For example, the bandwidth resource can be the uplink BWP. For example, the bandwidth resource can be the downlink BWP. For example, the bandwidth resource can be the initial downlink BWP. The bandwidth resource in this application is the bandwidth resource of a low-complexity terminal device.

[0251] In this application, the size of the bandwidth resource is equal to or less than the maximum channel bandwidth supported by the first terminal device, and the size of the bandwidth resource can be predefined or indicated by the network device. For example, the size can be 5 MHz, or the number of RBs corresponding to 5 MHz at different subcarrier spacings, or 10 MHz, or the number of RBs corresponding to 10 MHz at different subcarrier spacings, or 20 MHz, or the number of RBs corresponding to 20 MHz at different subcarrier spacings.

[0252] It should be understood that the first resource and the bandwidth resource can be equivalent, and the methods for determining resources in various embodiments are applicable to both the first resource and the bandwidth resource.

[0253] The time unit can be any one of a subframe, a radio frame, a time slot, a mini-slot, a symbol, a microsecond, a millisecond, and a second.

[0254] Uplink information: includes one or more of a random access channel (random access preamble), message 3 in the random access process, and a physical uplink control channel for feedback on the contention resolution message.

[0255] Message 3 in the random access process: includes the first transmission of the PUSCH carrying Msg3 (the initial transmission of Msg3), the first-hop transmission of the first transmission of the PUSCH carrying Msg3 (the first-hop transmission of the initial transmission of Msg3), the second-hop transmission of the first transmission of the PUSCH carrying Msg3 (the second-hop transmission of the initial transmission of Msg3), the transmissions after the first transmission of the PUSCH carrying Msg3 (the retransmission or repetition of Msg3), the first-hop transmission of the transmissions after the first transmission of the PUSCH carrying Msg3 (the first-hop transmission of the retransmission or repetition of Msg3), and the second-hop transmission of the transmissions after the first transmission of the PUSCH carrying Msg3 (the second-hop transmission of the retransmission or repetition of Msg3).

[0256] Physical uplink control channel for contention resolution message feedback: including one or more of the first transmission (initial transmission) of the PUCCH carrying Msg4, the first-hop transmission of the first transmission of the PUCCH carrying Msg4, the second-hop transmission of the first transmission of the PUCCH carrying Msg4, the transmission after the first transmission of the PUCCH carrying Msg4 (retransmission or repetition), the first-hop transmission of the transmission after the first transmission of the PUCCH carrying Msg4, and the second-hop transmission of the transmission after the first transmission of the PUCCH carrying Msg4.

[0257] The UE receives one or more of downlink control information, downlink shared channel, demodulation reference signal, positioning reference signal, etc. in the downlink BWP. The UE transmits one or more of uplink control channel, uplink shared channel, random access channel, uplink demodulation reference signal, sounding reference signal in the uplink BWP. For a UE capable of simultaneous downlink reception and uplink transmission, the UE transmits uplink information in the uplink BWP and receives downlink information in the downlink BWP at the same time, and the frequency ranges of the uplink BWP and the uplink BWP can be different. For example, a frequency division duplexing (FDD) UE is capable of simultaneous downlink reception and uplink transmission. For example, a UE with decoupled uplink and downlink in time division duplexing (TDD) is capable of simultaneous downlink reception and uplink transmission. Taking the example before the UE establishes a connection in RRC, the UE needs to transmit one or more of Msg1, the PUSCH carrying Msg3, the PUSCH carrying the retransmission of Msg3, and the PUCCH for feedback of Msg4 within the initial UL BWP.

[0258] The UE sends a random access preamble in a random access channel occasion (RO). In the time domain, for a PRACH transmission occasion, up to 8 ROs can be configured through frequency division multiplexing. Taking the subcarrier spacing of the PRACH as 30 KHz as an example, the bandwidth of one RO is 4.32 MHz, and the total bandwidth of the 8 ROs configured through frequency division multiplexing is 34.56 MHz. There is a mapping relationship between the SSB and the RO. The number of ROs corresponding to each SSB is configured through the parameters in System Information Block 1, and the SSB is mapped to the RO in the order of time domain first and then frequency domain. Taking the example that the same SSB is mapped to every 2 ROs, with a subcarrier spacing of 30 KHz and 8 ROs configured through frequency division multiplexing, the number of SSBs is 8. The frequency range of the 8 ROs configured through frequency division multiplexing may exceed the maximum channel bandwidth supported by low-complexity terminal devices. When the UE accesses the cell, it obtains one of the SSBs and sends the PRACH in the RO corresponding to the SSB. For example, after the UE sends the PRACH, it then needs to send the PUSCH carrying Msg3 immediately. If the total frequency range corresponding to the frequency range where Msg1 is sent and the frequency range where the PUSCH carrying Msg3 is sent exceeds the maximum channel bandwidth of the UE, frequency tuning needs to be performed after sending the PRACH, and then the PUSCH carrying Msg3 is sent. For the reception of adjacent downlink information, there is also a problem of frequency tuning for FDD UEs or TDD UEs with decoupled uplink and downlink.

[0259] Frequency tuning will reduce the symbols available for data transmission, reduce the resource utilization efficiency, increase the power consumption of the UE, and increase the complexity of UE implementation. In addition, if the bandwidth resources are configured in such a way that any RB can be used as the starting RB of the bandwidth resources and any resource size can be used as the length of the bandwidth resources, since the maximum channel bandwidth supported by low-complexity terminal devices is less than the carrier bandwidth, low-complexity terminal devices need to store all possible configurations. This will cause the complexity of the UE to calculate the bandwidth resources to be too high.

[0260] To solve the above problems, an embodiment of the present application proposes a method for transmitting information, as Figure 2 shown,

[0261] 200: The network device indicates information to the first terminal device. The indication information can be used to indicate the first resource. The indication information can include a first reference point or a first bandwidth. The first reference point can be used to determine the position of the first resource, and the first bandwidth can be the size of the bandwidth of the first resource.

[0262] It should be understood that 200 is optional, and the first reference point and the first bandwidth can also be predefined. The present application does not make any limitations in this regard.

[0263] 201: The first terminal device determines a first resource according to a first reference point and / or a first bandwidth, and the size of the first resource is equal to or less than the maximum channel bandwidth supported by the first terminal device;

[0264] 202: The first terminal device sends uplink information or receives downlink information in the first resource.

[0265] It should be understood that the indication information can indicate the first reference point and the first bandwidth at one time, such as Figure 3 , or can be indicated in multiple times, such as Figure 4 . It can be that one indication information indicates the first reference point and another indication information indicates the first bandwidth, or one indication information indicates the first bandwidth and another indication information indicates the first reference point. It can also only indicate the first reference point or only indicate the first bandwidth.

[0266] It should be understood that the information of the first reference point and / or the first bandwidth can also be carried in other information, and other equivalent alternative solutions are also within the protection scope of this application.

[0267] Exemplarily, the network device can first receive the channel state information (CSI) of the first terminal device. The CSI includes the size information of the sub-band. The network device determines the bandwidth of the first resource of the first terminal device according to the size of the sub-band.

[0268] It should be understood that the first reference point can be used as the position of the first resource, or the position of the first resource can be determined according to the first reference point and a first offset.

[0269] The first bandwidth, the first offset and the first reference point can also be predefined, and this application does not make any limitation thereto.

[0270] The first bandwidth can be determined according to one or more of the sub-band size reported by the CSI, the sub-carrier spacing, and the bandwidth supported by the first terminal device.

[0271] Among them, the first offset can also be determined according to one or more of the sub-band size reported by the CSI, the sub-carrier spacing, and the first bandwidth supported by the first terminal device.

[0272] Specifically, the first bandwidth can be configured by the first configuration information, the first offset can be configured by the second configuration information, and the first reference point can be configured by the third configuration information. The first configuration information, the second configuration information, and the third configuration information can be carried in different information, or can also be carried in the same information. For example, they can be carried in SIB1.

[0273] A possible implementation manner is to determine the first resource according to the bandwidth supported by the first terminal device.

[0274] The bandwidth supported by the first terminal device can be the channel bandwidth or the transmission bandwidth corresponding to the channel bandwidth. For example, the bandwidth supported by the first terminal device can be 5 MHz, 10 MHz, 20 MHz, or 5 MHz, 10 MHz, 20 MHz, corresponding to the number of RBs at different subcarrier spacings.

[0275] When the bandwidth supported by the first terminal device is the first channel bandwidth, the first channel bandwidth is one of the maximum channel bandwidths supported by the first terminal device. For example, the first channel bandwidth can be the minimum bandwidth among the maximum channel bandwidths supported by the first terminal device. For instance, if the maximum channel bandwidth reported by the first terminal device can be 5 MHz, 10 MHz, 15 MHz, 20 MHz, the first channel bandwidth can be one of 5 MHz, 10 MHz, 15 MHz, 20 MHz, where the minimum bandwidth among the maximum channel bandwidths reported by the first terminal device is 5 MHz, that is, the first channel bandwidth can also be 5 MHz.

[0276] A possible implementation is to determine the first bandwidth based on an integer multiple of the bandwidth supported by the first terminal device. For example, determine the first bandwidth based on an integer multiple of 5 MHz. The bandwidth supported by the first terminal device can be the first transmission bandwidth, and the first transmission bandwidth is the number of resource blocks corresponding to the first channel bandwidth at different subcarrier spacings. For example, the corresponding relationship between the first channel bandwidth and the first transmission bandwidth at different subcarrier spacings is shown in Table 1.

[0277] When the subcarrier spacing is 15 KHz, for a 5 MHz bandwidth, the first transmission bandwidth is 25 RBs. Correspondingly, the first bandwidth can be determined based on an integer multiple of 25 RBs, such as 25 RBs, 50 RBs, 75 RBs, 100 RBs, etc. Another example, when the subcarrier spacing is 30 KHz, the first transmission bandwidth corresponding to 5 MHz is 11 RBs, then the first bandwidth can be determined based on an integer multiple of 11 RBs. Another example, the first bandwidth can be determined based on an integer multiple of 10 RBs. Another example, when the subcarrier spacing is 60 KHz, the first transmission bandwidth corresponding to 10 MHz is 11 RBs. Then the bandwidth can be determined based on an integer multiple of 11 RBs.

[0278] Table 1 Relationship table of subcarrier spacing and the number of RBs corresponding to the bandwidth supported by the first terminal device

[0279]

[0280] It should be understood that Table 1 is only an example, and this application does not limit it.

[0281] In a possible implementation, when determining the position of the first resource based on the first reference point and the first offset, the method for determining the first offset is the same as that in the above embodiments and will not be elaborated here.

[0282] In another possible implementation, when the bandwidth supported by the first terminal device is the first transmission bandwidth, the resource blocks outside the positive integer multiples of the first transmission bandwidth are used to transmit the first control channel. The resource blocks outside the positive integer multiples of the first transmission bandwidth include the first transmission resource and / or the second transmission resource. As Figure 5 shown, the first transmission resource is the M1 resource blocks with the smallest index of the second resource, and the second transmission resource is the M2 resource blocks with the largest index of the second resource; where M1 and M2 are positive integers, and the second resource is the BWP of the second type of terminal device or the carrier bandwidth corresponding to different subcarrier spacings.

[0283] Exemplarily, the first control channel may include the first-hop transmission of the PUCCH for the feedback of Msg4, or may be the second-hop transmission of the PUCCH for the feedback of Msg4. The first control channel may also be the first-hop transmission and the second-hop transmission of the PUCCH for the feedback of Msg4.

[0284] Specifically, when the subcarrier spacing is 15 KHz, the first transmission bandwidth corresponding to 5 MHz is 25 RBs, the number of RBs corresponding to the maximum channel bandwidth of 50 MHz is 270 RBs. The positive integer multiples of the first transmission bandwidth are used as the first bandwidth, and the positive integer multiples of the first transmission bandwidth are used as the first offset. For example, the first bandwidth may be 25 RBs, and the first offset may be 25 RBs. When the subcarrier spacing is 15 KHz, up to 10 first bandwidths can be configured, a total of 250 RBs, and the number of RBs corresponding to the maximum channel bandwidth of 50 MHz is 270 RBs. The remaining 20 RBs are distributed at both ends of the carrier. Then the first transmission resource may be the M1 resource blocks with the smallest index in the second resource, and the second transmission resource may be the M2 resource blocks with the largest index in the second resource.

[0285] The above solution takes the first bandwidth as the granularity. On the one hand, it can greatly reduce the optional range of the bandwidth. On the other hand, it can be used as the minimum bandwidth configured by the UE to save energy consumption.

[0286] In a possible implementation, the first resource and / or the first offset are determined according to the subband size reported by the CSI.

[0287] Exemplarily, the size of the subband reported by the CSI is a multiple of 4 RBs. For example, the network device determines the first bandwidth according to the size of the subband reported by the CSI, and the first bandwidth may be a multiple of 4 RBs. As Figure 6As shown, it can be 4 RBs. It can also be 8 RBs, 16 RBs, and so on. For another example, the network device determines the first offset based on the size of the subbands reported in CSI, and the first offset can be a multiple of 4 RBs, such as 4 RBs, 8 RBs, 16 RBs, and so on.

[0288] Compared with the bandwidth that is not a multiple of 4 RBs, the number of subbands reported by the UE decreases, reducing the complexity of UE reporting.

[0289] A possible implementation is to determine the first resource and / or the first offset according to the size of the subbands reported in CSI and the resource allocation granularity of the control resource set. The first resource and / or the first offset can be determined according to the least common multiple of the size of the subbands reported in CSI and the resource allocation granularity of the control resource set. For example, the size of the subbands reported in CSI can be 4 RBs, and the CORESET resource allocation granularity can be 6 RBs. According to the least common multiple of the number of RBs in the above two items, for example, a multiple of 12 RBs can be used as the first bandwidth and / or as the first offset.

[0290] A possible implementation is to determine the first resource and / or the first offset according to the size of the subbands reported in CSI and the resource block group granularity. The first resource and / or the first offset is determined according to the least common multiple of the size of the subbands reported in CSI and the resource block group granularity. For example, the size of the subbands reported in CSI can be 4 RBs, and the resource block group can include a power of 2 number of RBs. The least common multiple of the number of RBs included in the above two items, for example, a multiple of 4 RBs can be used as the first bandwidth and / or as the first offset.

[0291] Another possible implementation is to determine the first resource and / or the first offset according to the size of the subbands reported in CSI, the resource allocation granularity of the control resource set, and the resource block group granularity. The first resource and / or the first offset is determined according to the least common multiple of the size of the subbands reported in CSI, the resource allocation granularity of the control resource set, and the resource block group granularity. For example, the size of the subbands reported in CSI can be 4 RBs, the CORESET resource allocation granularity can be 6 RBs, and the resource block group can include a power of 2 number of RBs. The least common multiple of the number of RBs included in the above items, for example, a multiple of 12 RBs can be used as the first bandwidth and / or as the first offset.

[0292] The above solution determines the bandwidth of the first resource according to the sub - band size reported by CSI, solves the problem that the mismatch between the sub - band and the bandwidth of the first resource will cause an increase in the number of sub - bands reported by the UE, increases the CORESET resource allocation granularity and the resource block group as the basis for configuring the first bandwidth, and at the same time avoids the mismatch between the first bandwidth and the sub - band size reported by CSI, the resource allocation of CORESET, and the resource allocation of data channel type 0, avoiding waste of resources, such as Figure 7 , and reduces the complexity of the UE reporting CSI.

[0293] It should be understood that the above solution can be combined with the implementation methods described above. For example, within the range of 25 RBs, a multiple of 12 can be used as the first offset. For example, 24 RBs can avoid the mismatch problem described above and can reduce the bandwidth indication range.

[0294] In a possible implementation, the first bandwidth and the first offset in the above embodiments can be associated with the sub - carrier spacing. There is a first association relationship between the first bandwidth and the sub - carrier spacing; and / or, there is a second association relationship between the first offset and the sub - carrier spacing. For example, the first association relationship can be: the larger the sub - carrier spacing, the smaller the first bandwidth. Another example is that the second association relationship can be: the larger the sub - carrier spacing, the smaller the first offset. The first association relationship can also be: the larger the sub - carrier spacing, the smaller the size of the first resource in proportion. Another example is that the second association relationship can be: the larger the sub - carrier spacing, the smaller the first offset in proportion.

[0295] Exemplarily, for 15 KHz, the first offset can be 24 RBs, for 30 KHz, the first offset can be 12 RBs, for 60 KHz, the first offset can be 6 RBs, and so on. For example, for 15 KHz, the first offset can be 24 RBs, for 30 KHz, the first offset can be 6 RBs, for 60 KHz, the first offset can be 4 RBs, and so on. For example, for 15 KHz, the first offset can be 12 RBs, for 30 KHz, the first offset can be 6 RBs, for 60 KHz, the first offset can be 4 RBs, and so on.

[0296] This solution takes into account that when the sub - carrier spacing is different, the number of RBs included in the same bandwidth is different. When NR supports scenarios with different sub - carrier spacings, the solution of this application can also be used to configure the first resource.

[0297] In a possible implementation, the first terminal device determines the first resource according to the first reference point.

[0298] Exemplarily, the first terminal device may receive indication information indicating a first reference point, where the first reference point may be the first resource block (RB) of a second resource, the center frequency or center sub-carrier of the second resource, the last RB of the second resource, common resource block 0, Point A, or one or more of them. The indication information may be carried in SIB1 or the PDCCH scheduling SIB1.

[0299] The second resource is a resource configured for a second type of terminal device, and the number of resource blocks included in the second resource can be greater than the number of resource blocks corresponding to the maximum channel bandwidth of the first terminal device. For example, the second resource is the carrier bandwidth or the number of RBs corresponding to the carrier at different sub-carrier spacings. The second resource may also be the bandwidth part (BWP) of the second type of terminal device.

[0300] It should be understood that the first terminal device may also determine the first reference point in a predefined manner. The first reference point may be the first RB of the second resource, the center frequency or center sub-carrier of the second resource, the last RB of the second resource, common resource block 0, Point A, or one or more of them.

[0301] A possible implementation may indicate the positions of the starting RB and ending RB of the second resource through signaling. As Figure 8 shown, among multiple candidate bandwidths, 2 candidate bandwidths may use the ending RB of the second resource as a reference point, and the other 3 candidate bandwidths may use the starting RB of the second resource as a reference point.

[0302] Another possible implementation may indicate the position of the starting RB or the ending RB of the second resource through signaling, and determine the candidate bandwidths in sequence based on the indicated reference point.

[0303] It should be understood that the number here, as well as the correspondence between the number and the starting RB and ending RB, is only an example and is not limited thereto.

[0304] Another possible implementation may use CRB 0 (Point A) as a reference point to determine the starting point of the first resource according to the reference point.

[0305] This solution provides a reference point for the configuration of the first resource, and can avoid the situation of resource waste caused by the first resource occupying less than one RB in some frequency domains.

[0306] Yet another possible implementation is that in the case where the first terminal device and the second terminal device share a BWP, the position of the second resource and the starting position of the CRB are jointly considered to determine the reference point, and the frequency position aligned with the CRB resource may be used as the reference point. For example, Figure 9 as shown in (a) of , the reference point is not necessarily the starting or ending RB position of the second resource.

[0307] This solution can flexibly determine the starting position of the first resource, reduce the overhead of indication, and avoid the problem of resource allocation mismatch.

[0308] In another possible implementation, according to one or more of the subband size reported by CSI, the CORESET resource allocation granularity, the resource block group (RBG), the subcarrier spacing, and the minimum channel bandwidth supported by the first terminal device, configure the frequency domain offset of the first resource, and this offset can be the RB of the position offset of the starting position of the first resource relative to the second resource.

[0309] Exemplarily, as shown in (b) of Figure 9 , when the first reference point (Start_RB) is the position of the starting RB of the second resource, the starting position of the first resource can be MOD(Start_RB + the first offset, BW).

[0310] When Start_RB is the position of the ending RB of the second resource, the starting position of the first resource can be MOD(Start_RB + the first offset, BW), or MOD(BW, Start_RB - the first offset). Wherein, BW is the bandwidth of the second resource, or the carrier bandwidth.

[0311] Among them, the first reference point and the first offset can be determined according to the solution in the foregoing embodiments, and will not be elaborated herein. For example, the first offset can be an integer multiple of 25 RBs, and the RB position of Start_RB + the first offset can be index * 25, and Index is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.

[0312] If the first offset is not indicated, then by default, Start_RB is the starting position of the first resource.

[0313] The first terminal device receives the second information sent by the network device, and the second information indicates at least two of the first bandwidth, the first reference point, and the first offset. That is, the network device performs joint coding on at least two of the first bandwidth, the first reference point, and the first offset. For example, the first bandwidth can be 5 MHz, 10 MHz, 20 MHz (or 25 RBs, 50 RBs, 100 RBs), and the first offset is an integer multiple of 25 RBs, then a total of 30 states need to be indicated, and 5 bits are required.

[0314] This solution comprehensively considers the complexity and flexibility of indication, can reduce the bit overhead for the first resource, and at the same time reduce the calculation complexity of the UE.

[0315] In another embodiment of the present application, the first reference point, as the reference point of the first bandwidth position, may be the position of the first random access resource, that is, the position of the first resource is determined according to the position of the first random access resource, and the first terminal device sends the first uplink information within the first resource.

[0316] Wherein, the size of the first resource (i.e., the first bandwidth) is equal to or less than the maximum channel bandwidth supported by the first terminal device; the first random access resource is a random access resource available to the first terminal device. The random access resource available to the first terminal device may be a random access resource configured by the network device for the first terminal device.

[0317] Specifically, the first uplink information includes all uplink information sent in the random access phase; or, the first uplink information includes the first transmission of the PUSCH carrying Msg3 (Msg3 initial transmission), the first-hop transmission of the first transmission of the PUSCH carrying Msg3 (the first-hop transmission of Msg3 initial transmission), the transmission after the first transmission of the PUSCH carrying Msg3 (the transmission after Msg3 initial transmission, including the retransmission or repetition of Msg3), the first-hop transmission of the transmission after the first transmission of the PUSCH carrying Msg3 (the first-hop transmission of the transmission after Msg3 initial transmission), the first transmission of the PUCCH of Msg4 (the initial transmission of the PUCCH of Msg4), the first-hop transmission of the first transmission of the PUCCH of Msg4 (the first-hop transmission of the initial transmission of the PUCCH of Msg4), the transmission after the first transmission of the PUCCH of Msg4 (the transmission after the initial transmission of the PUCCH of Msg4), and the first-hop transmission of the transmission after the first transmission of the PUCCH of Msg4 (the first-hop transmission of the transmission after the initial transmission of the PUCCH of Msg4).

[0318] The position of the first random access resource includes the first RB of the first random access resource; or, the position of the first random access resource includes the last RB of the first random access resource; or, the position of the first random access resource includes the central RB of the first random access resource; or, the position of the first random access resource includes the first subcarrier of the first RB of the first random access resource; or, the position of the first random access resource includes the first subcarrier of the last RB of the first random access resource; or, the position of the first random access resource includes the first subcarrier of the central RB of the first random access resource; or, the position of the first random access resource includes the last subcarrier of the first RB of the first random access resource; or, the position of the first random access resource includes the last subcarrier of the last RB of the first random access resource; or, the position of the first random access resource includes the last subcarrier of the central RB of the first random access resource.

[0319] It should be understood that the size of the first random access resource may be predefined.

[0320] The position of the first resource includes the first RB of the first resource; alternatively, the position of the first resource includes the last RB of the first resource; alternatively, the position of the first resource includes the central RB of the first resource; alternatively, the position of the first resource includes the first subcarrier of the first RB of the first resource; alternatively, the position of the first resource includes the first subcarrier of the last RB of the first resource; alternatively, the position of the first resource includes the first subcarrier of the central RB of the first resource; alternatively, the position of the first resource includes the last subcarrier of the first RB of the first resource; alternatively, the position of the first resource includes the last subcarrier of the last RB of the first resource; alternatively, the position of the first resource includes the last subcarrier of the central RB of the first resource.

[0321] This application uses the first position to represent the reference position of the first resource.

[0322] It should be understood that the position of the first random access resource may be predefined or indicated by signaling.

[0323] Exemplarily, the first terminal device determines the position of the first resource according to the predefined position of the first random access resource. For example, the predefined position of the first random access resource may be the position of the nth random access resource, and the index of the corresponding random access resource is n - 1, where n is a positive integer. As Figure 10 shown, the predefined position of the first random access resource may be the last RB of the 4th random access resource or the last subcarrier of the last RB. The predefined position of the first random access resource may also be the first RB of the 5th random access resource or the first subcarrier of the first RB. The position of the first resource may start from the predefined position of the first random access resource. The first RB of the 5th random access resource or the first subcarrier of the first RB is determined as the first RB of the first resource or the first subcarrier of the first RB. The position of the first resource may also end at the predefined position of the first random access resource.

[0324] The position of the first random access resource may also be indicated by the first signaling. The first signaling may be carried in one of System Information Block 1 (SIB1), DCI scheduling SIB1, Random Access Response (RAR), DCI scheduling RAR, scheduling Msg3 uplink grant, Msg3, contention resolution message, DCI scheduling the contention resolution message. The first signaling may also be a bit or a bit state in the above information.

[0325] An embodiment of the present application provides a method for transmitting information, as follows: Figure 11 As shown:

[0326] 1101: The network device sends the first information and the first parameter to the first terminal device. The first information is used to indicate M bandwidth resources, where M is a positive integer, and the first parameter is the number of random access channel opportunities for frequency division multiplexing within a time unit. The first terminal device is a first type of terminal device, and the size of each of the M bandwidth resources is equal to or less than the maximum channel bandwidth supported by the first terminal device.

[0327] It should be understood that 1101 is optional, and the first information and the first parameter can also be predefined.

[0328] 1102: The first terminal device obtains the first information and the first parameter, and the first terminal device determines the first bandwidth resource according to the first information and the first parameter;

[0329] It should be understood that the first information can be system information. For example, system information block 1 (SIB1).

[0330] 1103: The first terminal device sends uplink information or receives downlink information in the first bandwidth resource.

[0331] Specifically, the first parameter can be included in the random access channel configuration information.

[0332] The random access channel configuration information can also include other information of the PRACH. For example, the random access channel opportunity is the PRACH transmission occasion, and the first terminal device sends a random access preamble through the PRACH transmission occasion. Another example is the time slot in which the first terminal device can send the PRACH, which can include one or more PRACH transmission occasions in the time domain, and each PRACH transmission occasion is a time unit.

[0333] The first parameter can indicate the number of PRACH transmission occasions that can be frequency division multiplexed in frequency within a PRACH occasion. A time slot can include one or more time units. When a time slot includes multiple time units, a time unit can be s symbols, where s is a positive integer greater than 1. Then the first parameter can indicate the number of PRACH transmission occasions that can be frequency division multiplexed in frequency within a time unit, and the value of the first parameter can be 1, or 2, or 4, or 8, etc.

[0334] For example, if the value of the first parameter is 8, the number of random access channel opportunities for frequency division multiplexing within one time unit is 8. These 8 random access channel opportunities can be indexed from 0 to 7 in ascending order of frequency resources.

[0335] In a possible implementation, the size of each of the M bandwidth resources can be predefined or indicated by a network device. For example, the size of each bandwidth resource can be 5 MHz, or the number of RBs corresponding to 5 MHz at different subcarrier spacings, or 10 MHz, or the number of RBs corresponding to 10 MHz at different subcarrier spacings, or 20 MHz, or the number of RBs corresponding to 20 MHz at different subcarrier spacings.

[0336] In a possible implementation, M = 2, and one of the two bandwidth resources contains the resources of random access channel opportunities {0, 1, 2, 3}, and the other bandwidth resource contains the resources of random access channel opportunities {4, 5, 6, 7}. On the basis that each of the two bandwidth resources does not exceed the maximum channel bandwidth supported by the first terminal device, the two bandwidth resources can contain all the resources of random access channel opportunities. The first terminal device can determine the center frequency when sending a PRACH according to the bandwidth resources, and the number of frequency tuning times can be reduced.

[0337] In another possible implementation, when M > 1, the first terminal device can obtain a first signaling, which indicates the first bandwidth resource among the M bandwidth resources, and the other M - 1 bandwidth resources among the M bandwidth resources are determined according to the first bandwidth resource.

[0338] For example, when the first bandwidth resource is arranged in ascending order of the position of frequency resources, it is the bandwidth resource with the lowest position. The first bandwidth resource can be configured by configuring the starting position and the resource size. The remaining M - 1 bandwidth resources can use the end resource block of the first bandwidth resource as the starting resource block and be sorted in sequence, so that the M bandwidth resources can be determined in sequence. The configuration of the bandwidth resources does not need to consider the position of the RO, which is more flexible.

[0339] In a possible implementation, when the value of the first parameter is greater than 4 and M = 1, this bandwidth resource is the first bandwidth resource of the first terminal device, and this first bandwidth resource can contain the resources of N predefined random access channel opportunities, where the first parameter number of random access channel opportunities includes N random access channel opportunities, and N is a positive integer.

[0340] For example, if the value of the first parameter is 8 and the first piece of information is that the first terminal device is only configured with 1 bandwidth resource, then this bandwidth resource is the first bandwidth resource of the first terminal device. This first bandwidth resource may include resources for N pre-defined random access channel opportunities, and the resources for N random access channel opportunities belong to the first parameter number of random access channel opportunities, where N is a positive integer. The resources for the pre-defined N random access channel opportunities may be: the resources for the N random access channel opportunities with lower order in the resource order from low to high frequency resource positions. Specifically, N = 4 and the value of the first parameter may be 8. The resources for the pre-defined N random access channel opportunities need to include the resources for the random access channel opportunity where the random access preamble transmission is located. This solution can save bit overhead and can ensure that the transmission of the random access preamble does not require frequency tuning, reducing the number of frequency tuning times. For example, the first bandwidth resource is determined according to the resources for the random access channel opportunity where the random access preamble transmission is located. The first bandwidth resource is the resource starting from the first resource block (RB) or the first sub-carrier of the first RB of the resources for the random access channel opportunity where the random access preamble transmission is located; or, the first bandwidth resource is determined according to the resources for the random access channel opportunity where the random access preamble transmission is located, and the first bandwidth resource is the resource ending with the last RB or the last sub-carrier of the last RB of the resources for the random access channel opportunity where the random access preamble transmission is located. A possible scenario of this solution: The first type of terminal device and the second type of terminal device receive the same system information, receive the same first parameter, and are only configured with one bandwidth resource.

[0341] It should be understood that this scenario is only an example and this application does not make any limitations thereto.

[0342] A possible implementation manner is that when the value of the first parameter is greater than 4 and M = 1, this bandwidth resource is the first bandwidth resource of the first terminal device, and the first terminal device also obtains first indication information, which may indicate the first random access channel opportunity. The starting resource block of the first bandwidth resource is the same as the starting resource block of the first random access channel opportunity. For example, if the value of the first parameter is 8 and the first piece of information is that the first terminal device is only configured with 1 bandwidth resource, then this bandwidth resource is the first bandwidth resource of the first terminal device. The starting resource block of the first bandwidth resource may be determined according to the first indication information. For example, the first random access channel opportunity is the random access channel opportunity with index r, where r is an integer greater than or equal to 0. The starting resource block of the first bandwidth resource being the same as the starting resource block of the first random access channel opportunity may also be understood as the frequency position of the starting resource block of the first bandwidth resource being aligned with the frequency position of the starting resource block of the first random access channel opportunity. For example, N = 4 and the value of the first parameter may be 8. A possible scenario of this solution: The first type of terminal device and the second type of terminal device receive the same system information, receive the same first parameter, and are only configured with one bandwidth resource.

[0343] Exemplarily, the first indication information may include 1 bit, and the first indication information may indicate the index of the first random access channel opportunity in the random access channel opportunity index {0, 4}. If the first indication information indicates an index of 0, the first bandwidth resource may include resources with random access channel opportunity indices {0, 1, 2, 3}. If the first indication information indicates an index of 4, the first bandwidth resource may include resources with random access channel opportunity indices {4, 5, 6, 7}. For example, according to the resources of the random access channel opportunity where the random access preamble transmission is located, the first bandwidth resource is indicated. The first bandwidth resource is the resource starting from the first resource block (RB) or the first subcarrier of the first RB among the resources of the random access channel opportunity where the random access preamble transmission is located; or, according to the resources of the random access channel opportunity where the random access preamble transmission is located, the first bandwidth resource is determined, and the first bandwidth resource is the resource ending with the last RB or the last subcarrier of the last RB among the resources of the random access channel opportunity where the random access preamble transmission is located. The two possible positions of the first bandwidth resource indicated by this solution can cover all the resources of the random access channel opportunity, ensuring that the transmission of the random access preamble does not require frequency tuning and reducing the number of frequency tuning times.

[0344] Among them, the index of the RO is as Figure 12 shown.

[0345] Exemplarily, the first indication information may include 2 bits, and the first indication information indicates the index of the first random access channel opportunity in the random access channel opportunity index {1, 2, 3, 4}. If the first indication information indicates an index of 1, the first bandwidth resource may include resources with random access channel opportunity indices {1, 2, 3, 4}. If the first indication information indicates an index of 2, the first bandwidth resource may include resources with random access channel opportunity indices {2, 3, 4, 5}. If the first indication information indicates an index of 3, the first bandwidth resource may include resources with random access channel opportunity indices {3, 4, 5, 6}. If the first indication information indicates an index of 4, the first bandwidth resource may include resources with random access channel opportunity indices {4, 5, 6, 7}. The four possible positions of the first bandwidth resource indicated by this solution can cover all the resources of the random access channel opportunity, ensuring that the transmission of the random access preamble does not require frequency tuning and reducing the number of frequency tuning times, and the indication is more flexible.

[0346] Exemplarily, the first indication information may further include 3 bits, and the first indication information indicates the index of the first random access channel opportunity among the random access channel opportunity indexes {0, 1, 2, 3, 4}. If the first indication information indicates an index of 0, the first bandwidth resource may include resources with random access channel opportunity indexes {0, 1, 2, 3}. If the first indication information indicates an index of 1, the first bandwidth resource may include resources with random access channel opportunity indexes {1, 2, 3, 4}. If the first indication information indicates an index of 2, the first bandwidth resource may include resources with random access channel opportunity indexes {2, 3, 4, 5}. If the first indication information indicates an index of 3, the first bandwidth resource may include resources with random access channel opportunity indexes {3, 4, 5, 6}. If the first indication information indicates an index of 4, the first bandwidth resource may include resources with random access channel opportunity indexes {4, 5, 6, 7}. The positions of the five possible first bandwidth resources indicated by this solution can include all the resources of the random access channel opportunities, can ensure that the transmission of the random access preamble does not require frequency tuning, reduce the number of frequency tuning times, and is more flexible in indication.

[0347] Exemplarily, the first indication information includes 3 bits, and the first indication information may further indicate the index of the first random access channel opportunity among the random access channel opportunity indexes {0, 1, 2, 3, 4, 5, 6, 7}. If the first indication information indicates an index of 0, the first bandwidth resource may include resources with random access channel opportunity indexes {0, 1, 2, 3}. If the first indication information indicates an index of 1, the first bandwidth resource may include resources with random access channel opportunity indexes {1, 2, 3, 4}. If the first indication information indicates an index of 2, the first bandwidth resource may include resources with random access channel opportunity indexes {2, 3, 4, 5}. If the first indication information indicates an index of 3, the first bandwidth resource may include resources with random access channel opportunity indexes {3, 4, 5, 6}. If the first indication information indicates an index of 4, the first bandwidth resource may include resources with random access channel opportunity indexes {4, 5, 6, 7}. If the first indication information indicates an index of 5, the first bandwidth resource may include resources with random access channel opportunity indexes {5, 6, 7}. If the first indication information indicates an index of 6, the first bandwidth resource may include resources with random access channel opportunity indexes {6, 7}. If the first indication information indicates an index of 7, the first bandwidth resource may include resources with a random access channel opportunity index of {7}. The positions of the eight possible first bandwidth resources indicated by this solution can include all the resources of the random access channel opportunities, can ensure that the transmission of the random access preamble does not require frequency tuning, reduce the number of frequency tuning times, and is more flexible in indication.

[0348] Exemplarily, the index of the first random access channel opportunity can also be determined based on the presence or absence of the first indication information. The absence of the first indication information can also be understood as that the first terminal device has not obtained the first indication information. For example, the first indication information can be default. If the first indication information is default, the first random access channel opportunity is the random access channel opportunity with an index of 0. This solution can be combined with the foregoing embodiments. For example, this solution can be applied together with that the first indication information can include 2 bits. If the first indication information is default, the first random access channel opportunity is the random access channel opportunity with an index of 0; if the first indication information includes 2 bits, the first indication information indicates the index of the first random access channel opportunity among the random access channel opportunity indices {1, 2, 3, 4}.

[0349] In a possible implementation, when the value of the first parameter is greater than 4 and M>1, each of the M bandwidth resources includes one or more random access channel opportunities among the first parameter random access channel opportunities, and the first terminal device determines the first bandwidth resource among the M bandwidth resources. Possible scenarios of this solution: The first type of terminal device and the second type of terminal device receive the same system information, receive the same first parameter, and are configured with multiple bandwidth resources.

[0350] It should be understood that this scenario is only an example, and the present application does not limit this.

[0351] It can be understood that the random access channel opportunity resources included in different bandwidth resources among the M bandwidth resources are different. For example, when the value of the first parameter is 8 and the first information configures 2 bandwidth resources for the first terminal device, each of the 2 bandwidth resources includes one or more random access channel opportunities among the 8 random access channel opportunities. For example, as Figure 13 shown, one of the 2 bandwidth resources includes the random access channel opportunity resources with indices {0, 1, 2, 3}, and the other bandwidth resource includes the random access channel opportunity resources with indices {4, 5, 6, 7}. The first terminal device can determine the first bandwidth resource among the 2 bandwidth resources. The first bandwidth resource can be the bandwidth resource with indices {0, 1, 2, 3}, and the first bandwidth resource can also be the bandwidth resource with indices {4, 5, 6, 7}. The first bandwidth resource can be determined according to the random access channel opportunity resources where the random access preamble transmission is located. This solution can save bit overhead and can ensure that the transmission of the random access preamble does not require frequency tuning and reduces the number of frequency tuning times.

[0352] A possible implementation is that the first terminal device receives second indication information, and the second indication information can indicate a second bandwidth resource among M bandwidth resources. The second bandwidth resource can be different from the first bandwidth resource, that is, the resources of the random access channel opportunity included in the second bandwidth resource are not exactly the same as the resources of the random access channel opportunity included in the first bandwidth resource. The second bandwidth resource can also be the same as the first bandwidth resource, that is, the resources of the random access channel opportunity included in the second bandwidth resource are the same as the resources of the random access channel opportunity included in the first bandwidth resource.

[0353] Specifically, the second indication information can be carried by one or more of a random access response message (Random access response, RAR), downlink control information for scheduling the random access response message, a contention resolution message (Msg4), and downlink control information for scheduling the contention resolution message, and / or the second indication information is included in the uplink grant (UL grant) of each media access control random access response (MAC RAR) in the random access response message. The second indication information can indicate the second channel bandwidth for each terminal device in the first type of terminal device, then the second indication information can be included in the UL grant of the MAC RAR.

[0354] The second indication information can indicate the second channel bandwidth resource for a group of terminal devices in the first type of terminal device, then the second indication information can be included in the RAR, DCI for scheduling the RAR, Msg4, and DCI for scheduling Msg4.

[0355] The second indication information can be carried by two kinds of information respectively. For example, it is carried simultaneously in the DCI for scheduling Msg4 and the UL grant of the MAC RAR, used to indicate that the first terminal device sends message 3 in the second bandwidth resource during the random access process, or sends a physical uplink control channel for feedback on the contention resolution message.

[0356] Exemplarily, the first terminal device sends a random access preamble in the first bandwidth resource. The first terminal device sends message 3 in the second bandwidth resource during the random access process, or sends a physical uplink control channel for feedback on the contention resolution message.

[0357] The bandwidth resource for the first terminal device to send a random access preamble may be different from the bandwidth resource for sending message 3 during the random access procedure. The bandwidth resource for the first terminal device to send a random access preamble may be different from the bandwidth resource for the physical uplink control channel that feeds back the contention resolution message. The bandwidth resource for the first terminal device to send a random access preamble may be different from the bandwidth resources for sending message 3 during the random access procedure and the physical uplink control channel that feeds back the contention resolution message. The bandwidth resource for the first terminal device to send message 3 during the random access procedure may be different from the bandwidth resource for the physical uplink control channel that feeds back the contention resolution message. For example, the fifth indication information may be carried by one or more of RAR, the DCI that schedules RAR, Msg4, the DCI that schedules Msg4, and the UL grant of MAC RAR, indicating a third bandwidth resource. The first terminal device sends message 3 during the random access procedure in the second bandwidth resource, and the first terminal device sends the physical uplink control channel that feeds back the contention resolution message in the third bandwidth resource. The third bandwidth resource may be the same as or different from the first bandwidth resource, and the third bandwidth resource may be the same as or different from the second bandwidth resource. Another example is that the first terminal device sends a random access preamble in the first bandwidth resource, and the second indication information is the DCI that schedules RAR, indicating the second bandwidth resource. Then the first terminal device sends message 3 during the random access procedure in the second bandwidth resource, or sends the physical uplink control channel that feeds back the contention resolution message. Another example is that the first terminal device may also receive the fifth indication information, and the fifth indication information is the DCI that schedules Msg4, indicating the third bandwidth resource. Then the first terminal device sends the physical uplink control channel that feeds back the contention resolution message in the third bandwidth resource.

[0358] The first terminal device can send all uplink information in the first bandwidth resource, which can ensure that frequency tuning is not required during the uplink transmission process and reduce the number of frequency tuning times. The first terminal device can also send a random access preamble in the first bandwidth resource, and send message 3 in the random access process and a physical uplink control channel for contention resolution message feedback in the second bandwidth, so that load balancing can be considered on the basis of reducing the number of frequency tuning times. The first terminal device can also send a random access preamble in the first bandwidth resource, send the first hop transmission of message 3 in the random access process in the second bandwidth resource, and send the second hop transmission of message 3 in the random access process and a physical uplink control channel for contention resolution message feedback in the third bandwidth resource, which is conducive to the first terminal device obtaining the frequency diversity gain of message 3 in the random access process. The first terminal device can also send a random access preamble in the first bandwidth resource, send message 3 in the random access process and the first hop transmission of the physical uplink control channel for contention resolution message feedback in the second bandwidth resource, and send the second hop transmission of the physical uplink control channel for contention resolution message feedback in the third resource, which is conducive to the frequency diversity gain of the physical uplink control channel and solving the resource fragmentation problem caused by resource allocation of the physical uplink control channel.

[0359] For example, the first terminal device sends a random access preamble in the first bandwidth resource, and the first terminal device receives the third indication information. The resource for sending information by the first terminal device can be determined according to the bit state of the third indication information. The first terminal device only needs to detect the third indication information to determine whether the second bandwidth resource / third bandwidth resource exists. If not, there is no need to detect the configuration information, thereby reducing the complexity of the terminal device.

[0360] For example, the bit state of the third indication information is the first bit state, the first terminal device sends message 3 in the random access process in the first bandwidth resource, and / or sends a physical uplink control channel for feedback of the contention resolution message in the first bandwidth resource; the bit state of the third indication information is the second bit state, the first terminal device sends message 3 in the random access process in the second bandwidth resource, and / or sends a physical uplink control channel for feedback of the contention resolution message in the second bandwidth resource.

[0361] For another example, the bit state of the third indication information is the second bit state, the first terminal device sends message 3 in the random access process in the second bandwidth resource, and sends a physical uplink control channel for feedback on the contention resolution message in the third bandwidth resource.

[0362] For example, the third indication information may be identification information, and the identification information may be included in the DCI or in the high-level signaling. For example, the third indication information may be carried by one or more of RAR, DCI for scheduling RAR, Msg4, DCI for scheduling Msg4, and UL grant of MAC RAR. For example, the third indication information is the DCI for scheduling RAR, and the third indication information applies the available bits in the DCI to indicate the resources for the first terminal device to send information.

[0363] For example, when the bit state is the first bit state, the first terminal device sends message 3 in the random access process, and / or sends the physical uplink control channel for contention resolution message feedback using the same bandwidth resources as the first bandwidth resources for sending the random access preamble.

[0364] For another example, when the bit state is the second bit state, the bandwidth resources of the physical uplink control channel for sending message 3 in the random access process and / or sending feedback on the contention resolution message by the first terminal device are different from the first bandwidth resources for sending the random access preamble. For another example, when the bit state is the second bit state, the bandwidth resources of the physical uplink control channel for sending message 3 in the random access process and / or sending feedback on the contention resolution message by the first terminal device are different from the first bandwidth resources for sending the random access preamble.

[0365] In a possible implementation, application of the random access channel configuration information is associated with a value of a first parameter. When the value of the first parameter is greater than 4, the random access channel configuration information is used for the first type of terminal device and for the second type of terminal device. When the value of the first parameter is less than or equal to 4, the random access channel configuration information is only used for the first type of terminal device.

[0366] For example, when the value of the first parameter is greater than 4, the random access channel configuration information cannot be used only for the first type of terminal device. Since the maximum channel bandwidth supported by the first type of terminal device is less than the size of the resource of the random access channel opportunity corresponding to the value of the first parameter being greater than 4, when the value of the first parameter is greater than 4, the random access channel configuration information cannot be used only for the first type of terminal device, which is conducive to the coexistence of the first type of terminal device and the second type of terminal device under the coverage of the same network device.

[0367] A possible implementation mode, where the configuration of the M bandwidth resources is only used for terminal devices of the first type. For example, the M bandwidth resources are M uplink BWPs or M downlink BWPs. For example, the configuration of the M bandwidth resources is independently configured for terminal devices of the first type. The configuration of the M bandwidth resources being independently configured for terminal devices of the first type can be understood as being configured through independent fields or independent parameters, where the independent fields or the independent parameters are different from the fields or parameters of terminal devices of the second type, or the content configured by the independent fields or the independent parameters is different from the content configured by the fields or parameters of terminal devices of the second type.

[0368] The downlink information includes one or more of the PDCCH scheduling SIB1, the PDSCH carrying SIB1, the PDCCH scheduling SI, the PDSCH carrying SI, the PDCCH scheduling Msg2, the PDSCH carrying Msg2, the PDCCH scheduling Msg3, the PDCCH scheduling Msg4, and the PDSCH carrying Msg4.

[0369] Exemplarily, when the random access channel configuration information is used for terminal devices of the first type and for terminal devices of the second type, and the value of the first parameter is greater than 4, the first terminal device sends uplink information or receives downlink information in the first bandwidth resource. For example, the random access channel configuration information is jointly configured for terminal devices of the first type and for terminal devices of the second type, that is, it is not independently configured for terminal devices of the first type. For example, the value of the first parameter is 8.

[0370] Exemplarily, when the random access channel configuration information is used for terminal devices of the first type and for terminal devices of the second type, and the value of the first parameter is greater than 4, the first terminal device sends uplink information or receives downlink information in the second bandwidth resource. For example, the random access channel configuration information is jointly configured for terminal devices of the first type and for terminal devices of the second type, that is, it is not independently configured for terminal devices of the first type.

[0371] Exemplarily, when the random access channel configuration information is used for terminal devices of the first type and for terminal devices of the second type, and the value of the first parameter is less than or equal to 4, the first terminal device sends uplink information or receives downlink information in the bandwidth resource including the first parameter number of random access channel opportunities. For example, the random access channel configuration information is jointly configured for terminal devices of the first type and for terminal devices of the second type, that is, it is not independently configured for terminal devices of the first type. For example, the value of the first parameter is 1 or 2 or 4. For example, the bandwidth resource of the first parameter number of random access channel opportunities can be the resources of the predetermined first parameter number of random access channel opportunities, or can be the first bandwidth resource determined by the first indication information.

[0372] Among them, the determination of the first bandwidth resource and the second bandwidth resource can refer to the method in the above embodiments, which will not be elaborated here.

[0373] Exemplarily, the random access channel configuration information is only used for the first type of terminal device. The first information indicates the first bandwidth resource, and the first terminal device transmits uplink information or receives downlink information in the first bandwidth resource. For example, the random access channel configuration information is independently configured for the first type of terminal device. For example, if the first bandwidth resource is configured in the system information, the first terminal device transmits uplink information or receives downlink information in the first bandwidth resource.

[0374] In a possible implementation, the first terminal device obtains indication information, which is used to indicate the associated configuration of the SSB and random access. The first terminal device determines the associated configuration of the SSB and random access according to the indication information. The associated configuration of the SSB and random access can represent the number of SSBs associated with a random access channel opportunity (RO).

[0375] Exemplarily, the associated configuration can be the first associated configuration, or the associated configuration is the second associated configuration. For example, the first bit state of the fourth indication information is the first associated configuration, and the second bit state of the fourth indication information is the second associated configuration. For example, the first associated configuration is the associated configuration of the new SSB and the random access channel opportunity, that is, the first associated configuration is different from the associated configuration of the SSB and the random access channel opportunity of the second type of terminal device.

[0376] Exemplarily, the type of the associated configuration can be determined according to the presence or absence of the indication information.

[0377] For example, when the indication information appears, the first terminal device determines that the associated configuration of the SSB and the random access channel opportunity is the first associated configuration; when the indication information does not appear, the first terminal device determines that the associated configuration of the SSB and the random access channel opportunity is the second associated configuration. For example, the indication information is an optional configuration. If the indication information is configured, that is, the indication information appears, the associated configuration of the SSB and the random access channel opportunity is the first associated configuration. If the indication information is not configured, that is, the indication information does not appear, the associated configuration of the SSB and the random access channel opportunity is the second associated configuration. For example, the indication information is identification information, including 1 bit.

[0378] It should be understood that the above corresponding relationship between the indication information or the bit state of the indication information and the associated configuration is only an example, and this application does not limit this.

[0379] For the FDD system or the TDD uplink-downlink decoupled system, this solution can avoid RF retuning between uplink transmissions in the initial access phase by determining the frequency domain position and bandwidth of the first resource.

[0380] This application determines the uplink transmission bandwidth resource or the downlink reception bandwidth resource, so that the total frequency range where two adjacent uplink transmissions are located, or the total frequency range where two adjacent downlink receptions are located, is within the maximum channel bandwidth supported by the terminal device, to avoid frequency tuning between frequent uplink transmissions, and / or avoid frequency tuning between frequent downlink receptions, thereby improving the available symbols for data transmission, improving resource utilization efficiency, avoiding increasing the power consumption of the UE, and reducing the implementation complexity of the UE.

[0381] Each embodiment described herein can be an independent solution or can be combined according to the internal logic, and these solutions all fall within the protection scope of this application.

[0382] In the above embodiments provided by this application, the methods provided by the embodiments of this application are introduced from the perspective of the interaction between various devices. To implement each function in the methods provided by the above embodiments of this application, a network device or a terminal device may include a hardware structure and / or a software module, and implement the above functions in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Whether a certain function among the above functions is executed in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module depends on the specific application and design constraints of the technical solution.

[0383] The division of modules in the embodiments of this application is illustrative, merely a logical function division, and there may be other division methods in actual implementation. In addition, in each embodiment of this application, each functional module may be integrated in one processor, may also exist separately physically, or two or more modules may be integrated in one module. The above integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0384] Similar to the above concept, as Figure 14 shown, the embodiments of this application also provide a device 1300 for implementing the functions of the network device or the terminal device in the above method. For example, the device may be a software module or a chip system. In the embodiments of this application, the chip system may be composed of chips or may include chips and other discrete devices. The device 1300 may include: a processing unit 1310 and a communication unit 1320.

[0385] In the embodiments of this application, the communication unit may also be referred to as a transceiver unit, and may include a sending unit and / or a receiving unit, which are respectively used to execute the sending and receiving steps of the network device or the terminal device in the above method embodiments.

[0386] Hereinafter, in combination with Figures 14 to 15A detailed description of the communication device provided in the embodiments of the present application is given. It should be understood that the description of the device embodiments corresponds to that of the method embodiments. Therefore, for the content not described in detail, reference can be made to the above method embodiments. For the sake of brevity, it will not be repeated here.

[0387] The communication unit can also be referred to as a transceiver, a transceiver unit, a transceiver device, etc. The processing unit can also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the devices in the communication unit 1320 used to implement the receiving function can be regarded as the receiving unit, and the devices in the communication unit 1320 used to implement the sending function can be regarded as the sending unit. That is, the communication unit 1320 includes a receiving unit and a sending unit. The communication unit can sometimes also be referred to as a transceiver, a transceiver unit, or an interface circuit, etc. The receiving unit can sometimes also be referred to as a receiver, a receiver unit, or a receiving circuit, etc. The sending unit can sometimes also be referred to as a transmitter, a transmitter unit, or a transmitting circuit, etc.

[0388] When the communication device 1300 executes the function of the first terminal device in any of the processes shown in the above embodiments Figures 2 to 13 :

[0389] The processing unit is configured to determine the resources for transmitting information according to the downlink information of the network device or according to a predefined rule.

[0390] The communication unit is used for receiving and sending information.

[0391] When the communication device 1300 executes the function of the network device in any of the processes shown in the above embodiments Figures 2 to 13 :

[0392] The processing unit is configured to configure resources or determine resources according to a predefined rule.

[0393] The communication unit is used for receiving and sending information.

[0394] The above are only examples. The processing unit 1310 and the communication unit 1320 can also execute other functions. For a more detailed description, reference can be made to Figures 2 to 13 the relevant descriptions in the shown method embodiments or other method embodiments, which will not be elaborated here.

[0395] As Figure 15 shown, the device 1400 provided in the embodiments of the present application Figure 15 The shown device can be Figure 14 a hardware circuit implementation of the shown device. This communication device can be applied to the flowcharts shown above and execute the functions of the terminal device or the network device in the above method embodiments. For the sake of convenience of description, Figure 14 only the main components of this communication device are shown.

[0396] As Figure 15As shown, the communication device 1400 includes a processor 1410 and an interface circuit 1420. The processor 1410 and the interface circuit 1420 are coupled to each other. It can be understood that the interface circuit 1420 can be a transceiver or an input / output interface. Optionally, the communication device 1400 may further include a memory 1430 for storing instructions executed by the processor 1410 or input data required for the processor 1410 to run instructions or data generated after the processor 1410 runs instructions.

[0397] When the communication device 1400 is used to implement Figures 2 to 13 the method shown, the processor 1410 is used to implement the functions of the above-mentioned processing unit 1310, and the interface circuit 1420 is used to implement the functions of the above-mentioned communication unit 1320.

[0398] When the above communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiment. The terminal device chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal device, and this information is sent by a network device to the terminal device; or, the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device, and this information is sent by the terminal device to the network device.

[0399] When the above communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiment. The network device chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, and this information is sent by a terminal device to the network device; or, the network device chip sends information to other modules (such as a radio frequency module or an antenna) in the network device, and this information is sent by the network device to the terminal device.

[0400] It can be understood that the processor in the embodiments of the present application can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0401] In an embodiment of the present application, the processor may be a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), a register, a hard disk, a removable hard disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may be located in an ASIC. Additionally, the ASIC may be located in a network device or a terminal device. Of course, the processor and the storage medium may also exist as discrete components in a network device or a terminal device.

[0402] Those skilled in the art should understand that the embodiments of the present application may be provided as a method, a system, or a computer program product. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program code.

[0403] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0404] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including an instruction means that implements the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0405] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to cover these modifications and variations.

[0406] As described above, it is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the said claims.

Claims

1. A method for transmitting information, applied to a first terminal device or a chip in the first terminal device, characterized in that, Comprising: Receiving first information, where the first information is used to indicate M bandwidth resources, M being a positive integer, the first terminal device being a first type of terminal device, and the size of each of the M bandwidth resources being equal to or less than the maximum channel bandwidth supported by the first terminal device; Receiving a first parameter, the first parameter being the number of random access channel opportunities for frequency division multiplexing within a time unit; Determining a first bandwidth resource from the M bandwidth resources according to the first information and the first parameter; Sending a random access preamble in the first bandwidth resource.

2. The method according to claim 1, characterized in that, The method further comprises: Receiving third indication information, the third indication information being included in high-layer signaling, the third indication information being identification information, and the bit state of the third indication information being used to determine the bandwidth resource of the physical uplink control channel PUCCH for the first terminal device to send feedback on the contention resolution message; 3. The method according to claim 1 or 2, characterized in that, The first bandwidth resource and the bandwidth resource of the PUCCH for sending feedback on the contention resolution message are located in the initial uplink bandwidth part initial UL BWP, and the initial UL BWP is indicated by the system information block 1 SIB1.

4. The method according to claim 3, characterized in that, The contention resolution message is message 4 Msg4.

5. The method according to any one of claims 1 to 4, characterized in that, The identification information comprises 1 bit.

6. The method according to any one of claims 1 to 5, characterized in that, The third indication information is carried in the SIB1.

7. The method according to any one of claims 1 to 6, characterized in that, The bit state of the third indication information is a first bit state or a second bit state, and the bandwidth resource of the PUCCH for sending feedback on the contention resolution message determined in the first bit state is different from the bandwidth resource of the PUCCH for sending feedback on the contention resolution message determined in the second bit state.

8. The method according to any one of claims 1 to 7, characterized in that, The method comprises: When the bit state of the third indication information is the first bit state, the first terminal device sends the PUCCH for sending feedback on the contention resolution message in the first bandwidth resource; When the bit state of the third indication information is the second bit state, the first terminal device sends the PUCCH for sending feedback on the contention resolution message in a second bandwidth resource.

9. The method according to claim 1, characterized in that, The method further comprises: The first terminal device obtains fourth indication information, the fourth indication information being used to indicate that the association configuration of the SSB and the random access channel opportunity is a first association configuration, or a second association configuration, and the association configuration being the association configuration between the SSB and the number of random access channel opportunities.

10. The method according to claim 1, characterized in that, The method further comprises: If the first terminal device receives the fourth indication information, the fourth indication information being used to indicate that the association configuration of the SSB and the random access is the first association configuration, and if the first terminal device does not receive the fourth indication information, then the association configuration of the SSB and the random access is the second association configuration, Or, If the first terminal device receives the fourth indication information, the fourth indication information being used to indicate that the association configuration of the SSB and the random access channel opportunity is the second association configuration, and if the first terminal device does not receive the fourth indication information, then the association configuration of the SSB and the random access channel opportunity is the first association configuration.

11. A method for transmitting information, characterized in that, Comprising: Send a first message to a first terminal device, where the first message is used to indicate M bandwidth resources, M being a positive integer, and the size of each of the M bandwidth resources is equal to or less than the maximum channel bandwidth supported by the first terminal device, and the first terminal device is a first type of terminal device; Send a first parameter, where the first parameter is the number of random access channel opportunities for frequency division multiplexing within a time unit; Receive a random access preamble in a first bandwidth resource, where the first bandwidth resource is determined by the first terminal device from the M bandwidth resources according to the first message and the first parameter.

12. The method according to claim 11, wherein, The method further includes: Receive third indication information, where the third indication information is included in higher layer signaling, the third indication information is identification information, and the bit status of the third indication information is used to determine the bandwidth resource of the physical uplink control channel PUCCH for the first terminal device to send feedback on the contention resolution message.

13. The method according to claim 11 or 12, wherein, The first bandwidth resource and the bandwidth resource of the PUCCH for sending feedback on the contention resolution message are located in the initial uplink bandwidth part initial UL BWP, and the initial UL BWP is indicated by the system information block 1 SIB1.

14. The method according to claim 13, wherein, The contention resolution message is message 4 Msg4.

15. The method according to any one of claims 11 to 14, wherein, The identification information includes 1 bit.

16. The method according to any one of claims 11 to 15, wherein, The third indication information is carried in the SIB1.

17. The method according to any one of claims 11 to 16, wherein, The bit status of the third indication information is a first bit status or a second bit status, and the bandwidth resource of the PUCCH for sending feedback on the contention resolution message determined in the first bit status is different from the bandwidth resource of the PUCCH for sending feedback on the contention resolution message determined in the second bit status.

18. The method according to any one of claims 11 to 17, wherein, The method includes: When the bit status of the third indication information is the first bit status, the first terminal device sends the PUCCH for sending feedback on the contention resolution message in the first bandwidth resource; When the bit status of the third indication information is the second bit status, the first terminal device sends the PUCCH for sending feedback on the contention resolution message in a second bandwidth resource.

19. The method according to claim 11, wherein, The method further includes: The first terminal device obtains fourth indication information, where the fourth indication information is used to indicate that the association configuration of the SSB and the random access channel opportunity is a first association configuration, or a second association configuration, and the association configuration is the association configuration between the SSB and the number of random access channel opportunities.

20. The method according to claim 11, wherein, The method further includes: If the first terminal device receives the fourth indication information, and the fourth indication information is used to indicate that the association configuration of the SSB and the random access is the first association configuration, if the first terminal device does not receive the fourth indication information, then the association configuration of the SSB and the random access is the second association configuration, Or, If the first terminal device receives the fourth indication information, and the fourth indication information is used to indicate that the association configuration of the SSB and the random access channel opportunity is the second association configuration, if the first terminal device does not receive the fourth indication information, then the association configuration of the SSB and the random access channel opportunity is the first association configuration.

21. A communication device, comprising a processor, the processor is connected to a memory, the memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the device executes the method according to any one of claims 1 to 10, or executes the method according to any one of claims 11 to 20.

22. A computer-readable storage medium, wherein, The computer-readable storage medium is used to store a computer program, which, when running on a computer, causes the computer to execute the method according to any one of claims 1 to 10, or causes the computer to execute the method according to any one of claims 11 to 20.

23. A chip, wherein, It includes a processor and a communication interface. The processor is used to read instructions to execute the method according to any one of claims 1 to 10, or execute the method according to any one of claims 11 to 20.

24. A computer program product, wherein, The computer program product includes computer instructions; when part or all of the computer instructions run on a computer, it causes the method according to any one of claims 1-10 to be executed, or causes the method according to any one of claims 11-20 to be executed.

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