A method and device for transmitting information

Abstract

The present application provides a method and apparatus for transmitting information, the method for transmitting information comprising: a first terminal device determines a first resource based on a first reference point and a first bandwidth, the first reference point is used to determine the location of the first resource, the first bandwidth is the size of the first resource, the size of the first resource 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 first terminal device sends and / or receives information on the first resource, which solves the problem of frequent switching of working frequencies of communication devices during access to a network, effectively saves power consumption of communication devices, and improves the flexibility of information transmission.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a method and device for transmitting information. Background Art

[0002] When a communication device is 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, which causes the communication device's services to be frequency tuned between adjacent uplink transmissions, or causes the communication device's services to be frequency tuned between adjacent downlink receptions. The frequent switching of operating frequencies causes huge power consumption of the communication device. Summary of the invention

[0003] The present application provides a method and device for transmitting information, which can avoid frequent switching of the operating frequency of a communication device, save power consumption, and improve the flexibility of information transmission.

[0004] In a first aspect, a method for transmitting information is provided, which 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 bandwidth resource in 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 for frequency division multiplexing within a time unit; the first terminal device determines a first bandwidth resource among the M bandwidth resources based on the first information and the first parameter; the first terminal device sends uplink information or receives downlink information in the first bandwidth resource.

[0005] The first information may be system information, such as SIB1, and the first parameter may be carried in 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 bandwidth, number of supported or configured resources, number of transmit antenna ports and / or number of receive antenna ports, number of radio frequency channels, number of hybrid automatic repeat request (HARQ) processes, supported peak rate, latency requirements, processing capabilities and other characteristics of the first type of terminal device are lower than those of the second type of terminal device (which may be a legacy UE).

[0006] It should be understood that the sizes of the M bandwidth resources may be the same or different, and this application does not limit this.

[0007] The method configures at least one bandwidth resource whose size is within the maximum bandwidth channel range supported by the first terminal device. The first terminal device determines the first bandwidth resource through first information and first parameters, thereby avoiding frequent switching of the working frequency of the first terminal device and saving power consumption.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the value of the first parameter is greater than 4,

[0009] When M=1, the bandwidth resource is the first bandwidth resource, and the first bandwidth resource includes resources of predefined N random access channel opportunities, wherein the first parameter random access channel opportunities include the N random access channel opportunities, and N is a positive integer.

[0010] or,

[0011] When M=1, the bandwidth resource is the first bandwidth resource, 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,

[0012] or,

[0013] When M>1, each of the M bandwidth resources includes a resource corresponding to at least one random access channel opportunity.

[0014] In combination with the first aspect, in certain implementations of the first aspect, the value of the first parameter is 8, the indexes of the random access channel opportunities arranged in a first order are 0 to 7, and the first order includes an order from small to large frequency.

[0015] It should be understood that the first order can also be understood as the order of the positions of random access channel opportunities in the frequency domain from low to high.

[0016] The first terminal device obtains first indication information,

[0017] The first indication information includes 1 bit, and the first indication information indicates the index of the first random access channel opportunity in index {0, 4},

[0018] or,

[0019] The first indication information includes 2 bits, and the first indication information indicates the index of the first random access channel opportunity in index {1, 2, 3, 4},

[0020] or,

[0021] The first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity in index {0, 1, 2, 3, 4},

[0022] or,

[0023] The first indication information includes 3 bits, and the first indication information indicates the index of the first random access channel opportunity in index {0, 1, 2, 3, 4, 5, 6, 7},

[0024] or,

[0025] The first terminal device does not obtain the first indication information, and the index of the first random access channel opportunity is 0.

[0026] It should be understood that when the first indication information includes 3 bits, it can indicate the index of {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.

[0027] It should be understood that the failure of the first terminal device to obtain the first indication information may be that the first terminal device has not received the first indication information, or that the network device has not been configured.

[0028] In combination with the first aspect, in certain implementations of the first aspect, the size of each of the M bandwidth resources is predefined, or, M=2, one of the bandwidth resources includes resources for random access channel opportunities {0,1,2,3}, and another of the bandwidth resources includes resources for random access channel opportunities {4,5,6,7}, or, M>1, the remaining M-1 bandwidth resources are determined based on a first candidate bandwidth resource, and the first candidate bandwidth resource is indicated by a first signaling.

[0029] It should be understood that the sizes of the M bandwidth resources can be predefined, or determined according to the resources of the random access channel opportunity, or a starting bandwidth resource can be determined according to the random access channel opportunity, and other bandwidth resources can be arranged in sequence with this resource as the starting point.

[0030] In combination with the first aspect, in certain implementations of the first aspect, M>1, the first terminal device receives second indication information, and the second indication information is used to indicate a second bandwidth resource; the first terminal device sends a random access preamble in the first bandwidth resource; the first terminal device sends message 3 in the random access process in the second bandwidth resource, or sends a physical uplink control channel for feedback on the contention resolution message.

[0031] That is, when M>1, the second bandwidth resource can also be indicated by the indication information, and the first terminal device sends information in the first bandwidth resource and the second bandwidth resource.

[0032] In combination with the first aspect, in certain implementations of the first aspect, the second indication information is carried in one or more of a random access response message, downlink control information of a scheduled random access response message, a contention resolution message, and downlink control information of a scheduled contention resolution message; and / or, the second indication information is carried in an uplink authorization of each media access control random access response in the random access response message.

[0033] In combination with the first aspect, in certain implementations of the first aspect, M>1, 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 instruct the first terminal device to send message 3 in the random access process and / or send bandwidth resources of the physical uplink control channel for feedback of the contention resolution message.

[0034] 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 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;

[0035] 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 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.

[0036] That is, the message 3 in the random access process and / or the bandwidth resource of the physical uplink control channel for sending feedback on the contention resolution message can be indicated by the bit state of the third indication information.

[0037] It should be understood that the relationship between the bit state of the third indication information and the indicated bandwidth resources is not a limitation.

[0038] In combination with the first aspect, in certain implementations 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 SSB and 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 SSB and random access is the second association configuration, if the first terminal device does not obtain the fourth indication information, then the association configuration between SSB and random access is the first association configuration.

[0039] That is, the type of the association configuration may be indicated by the content of the fourth indication information, or may be indicated by the presence or absence of the fourth indication information.

[0040] In a second aspect, a method for determining bandwidth resources is provided, which may include: a network device sends first information to a first terminal device, the first information is used to indicate M bandwidth resources, where M is a positive integer, and the size of each bandwidth resource in 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, and the first parameter is the number of random access channel opportunities for frequency division multiplexing within a 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, and the first bandwidth resource is determined by the first terminal device from the M bandwidth resources based on the first information and the first parameter.

[0041] The method configures at least one bandwidth resource whose size is within the maximum bandwidth channel range supported by the first terminal device, sends first information and first parameters to enable the first terminal device to determine the first bandwidth resource, thereby avoiding frequent switching of the working frequency of the first terminal device and saving power consumption.

[0042] In conjunction with the second aspect, in some implementations of the second aspect, the value of the first parameter is greater than 4,

[0043] When M=1, the M bandwidth resources are the first bandwidth resources, the first bandwidth resources include resources of predefined N random access channel opportunities, wherein the first parameter random access channel opportunities include the N random access channel opportunities, N is a positive integer,

[0044] or,

[0045] 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, a starting resource block of the first bandwidth resource is the same as a starting resource block of the first random access channel opportunity, and the M bandwidth resources are the first bandwidth resources,

[0046] or,

[0047] When M>1, each of the M bandwidth resources includes a resource corresponding to at least one random access channel opportunity.

[0048] In combination with the second aspect, in certain implementations 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 an order from small to large frequency.

[0049] In combination with the second aspect, in some implementations 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 in index {0,4},

[0050] or,

[0051] The first indication information includes 2 bits, and the first indication information indicates the index of the first random access channel opportunity in index {1, 2, 3, 4},

[0052] or,

[0053] 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}.

[0054] or,

[0055] 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}.

[0056] or,

[0057] The network device does not send the first indication information, and the index of the first random access channel opportunity is 0.

[0058] In conjunction with the second aspect, in some implementations of the second aspect, the size of each bandwidth resource in the M bandwidth resources is predefined,

[0059] or,

[0060] M=2, one of the bandwidth resources includes resources of random access channel opportunities {0, 1, 2, 3}, and another of the bandwidth resources includes resources of random access channel opportunities {4, 5, 6, 7},

[0061] or,

[0062] M>1, the network device sends a first signaling, where the first signaling is used to indicate a first candidate bandwidth resource, and the remaining M-1 bandwidth resources are determined based on the first candidate bandwidth resource.

[0063] In combination with the second aspect, in certain implementations of the second aspect, the network device sends second indication information, wherein 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 message 3 in the random access process in the second bandwidth resource, or receives a physical uplink control channel for feedback on a contention resolution message.

[0064] In combination with the second aspect, in certain implementations of the second aspect, the second indication information is carried in one or more of a random access response message, downlink control information of a scheduled random access response message, a contention resolution message, and downlink control information of a scheduled contention resolution message; and / or, the second indication information is carried in the uplink authorization of each media access control random access response in the random access response message.

[0065] In combination with the second aspect, in certain implementations of the second aspect, M>1, the network device receives a random access preamble in the first bandwidth resource; the network device sends a third indication information, and the third indication information is used to instruct the first terminal device to send message 3 in the random access process and / or send the bandwidth resources of the physical uplink control channel for feedback of the contention resolution message.

[0066] When the bit state of the third indication information is the first bit state, the network device receives message 3 in the random access process in the first bandwidth resource, and / or receives a physical uplink control channel for contention resolution message feedback in the first bandwidth resource,

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

[0068] In combination with the second aspect, in certain 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 SSB and random access is the first association configuration, or the second association configuration.

[0069] If the network device sends fourth indication information, the fourth indication information is used to indicate that the association configuration between the SSB and the random access is the first association configuration; if the network device does not send the fourth indication information, the association configuration between the SSB and the random access is the second association configuration,

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

[0071] It should be understood that the expansion, limitation, explanation and description of the relevant contents in the above-mentioned first aspect also apply to the same contents in the second aspect.

[0072] According to a third aspect, a method for transmitting information is provided, which may include: a first terminal device determines a first resource based on a first reference point and a first bandwidth, wherein 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 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.

[0073] The method provides a definite reference point and bandwidth, avoids the need for the first terminal device to determine the first resource after multiple detections, reduces the complexity of calculation of the first terminal device, and saves power consumption.

[0074] In combination with the third aspect, in certain implementations of the third aspect, the first bandwidth can be determined based on one or more of the subband size reported by the CSI, the subcarrier spacing, and the maximum channel bandwidth supported by the first terminal device.

[0075] It should be understood that the first resource can also be determined based on the first reference point and the first offset, and the first offset can also be determined based on one or more of the subband size reported by the CSI, the subcarrier spacing, and the maximum channel bandwidth supported by the first terminal device.

[0076] It should be understood that the maximum channel bandwidth supported by the first terminal device may be the transmission bandwidth, and the transmission bandwidth may be the number of resource blocks corresponding to the maximum channel bandwidth under different subcarrier spacings.

[0077] In combination with the third aspect, in certain implementations of the third aspect, there is a correlation between the maximum channel bandwidth supported by the first terminal device and the subcarrier spacing.

[0078] It should be understood that the association relationship may be indicated by indication information or may be predefined.

[0079] In combination with the third aspect, in certain implementations of the third aspect, the first bandwidth may be determined based on a positive integer multiple of a maximum channel bandwidth size supported by the first terminal device.

[0080] In combination with the third aspect, in certain implementations of the third aspect, the first bandwidth can be determined based on the common multiple of the subband size reported by the CSI, the subcarrier spacing, and the maximum channel bandwidth supported by the first terminal device, or the first offset can be determined.

[0081] In combination with the third aspect, in some implementations of the third aspect, the first terminal device may receive indication information, where the indication information is used to indicate a first reference point, where the first reference point may be one or more of the first RB of the second resource, the center frequency or center subcarrier of the second resource, the last RB of the second resource, common resource block 0, and Point A, or,

[0082] The second resource is a resource configured for a second terminal device, and the number of resource blocks contained in the second resource can be greater than the number of resource blocks corresponding to the maximum channel bandwidth of the first terminal device.

[0083] It should be understood that the indication information can be carried in SIB1, SIB1 PDCCH.

[0084] It should also be understood that the first reference point may be indicated by the indication information or may be predefined.

[0085] In combination with the third aspect, in certain implementations of the third aspect, the location of the first resource may be determined based on the first reference point and the first offset.

[0086] In combination with the third aspect, in some implementations of the third 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.

[0087] It should be understood that the first offset is associated with the subcarrier spacing, and may be indicated by the indication information or may be predefined.

[0088] Second information is received, where the second information indicates at least two of a first bandwidth, a first reference point, and a first offset.

[0089] In a fourth aspect, a method for transmitting information is provided, which may include: a network device may send a first reference point and a first bandwidth to a first terminal device, wherein 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 network device sends and / or receives information on the first resource, the first resource is determined by the first terminal device based on 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.

[0090] The method provides a definite reference point and bandwidth, avoids the need for the first terminal device to determine the first resource after multiple detections, reduces the complexity of calculation of the first terminal device, and saves power consumption.

[0091] 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 may also be predefined.

[0092] In combination with the fourth aspect, in certain implementations of the fourth aspect, the first bandwidth can be determined by one or more of the subband size reported by the CSI, the subcarrier spacing, and the maximum channel bandwidth supported by the first terminal device.

[0093] It should be understood that the first bandwidth can also be determined based on the first reference point and the first offset, and the first offset can also be determined based on one or more of the subband size reported by the CSI, the subcarrier spacing, and the maximum channel bandwidth supported by the first terminal device.

[0094] It should be understood that the maximum channel bandwidth supported by the first terminal device may be the transmission bandwidth, and the transmission bandwidth may be the number of resource blocks corresponding to the maximum channel bandwidth under different subcarrier spacings.

[0095] In combination with the fourth aspect, in certain implementations of the fourth aspect, there is a correlation between the maximum channel bandwidth supported by the first terminal device and the subcarrier spacing.

[0096] It should be understood that the association relationship may be indicated by the network device sending indication information, or may be predefined.

[0097] In combination with the fourth aspect, in certain implementations of the fourth aspect, the network device may determine the first bandwidth based on a positive integer multiple of a maximum channel bandwidth size supported by the first terminal device.

[0098] In combination with the fourth aspect, in certain implementations of the fourth aspect, the network device may determine the first bandwidth, or determine the first offset, based on a common multiple of multiple sizes of the subband size reported by the CSI, the subcarrier spacing, and the maximum channel bandwidth supported by the first terminal device.

[0099] In combination with the fourth aspect, in certain implementations of the fourth aspect, the network device may send indication information, where the indication information is used to indicate a first reference point, where the first reference point may be one or more of the first RB of the second resource, the center frequency or center subcarrier of the second resource, the last RB of the second resource, common resource block 0, and Point A, wherein the second resource is a resource configured for a second terminal device, and the number of resource blocks contained in the second resource can be greater than the number of resource blocks corresponding to the maximum channel bandwidth of the first terminal device.

[0100] It should be understood that the indication information can be carried in SIB1, SIB1 PDCCH.

[0101] It should also be understood that the first reference point may be indicated by the indication information or may be predefined.

[0102] In combination with the fourth aspect, in certain implementations of the fourth aspect, the network device may send a first reference point and a first offset, and the location of the first resource may be determined based on the first reference point and the first offset.

[0103] 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.

[0104] It should be understood that the first offset is associated with the subcarrier spacing, and may be indicated by the indication information sent by the network device, or may be predefined.

[0105] In a fifth aspect, a communication device is provided, which may include:

[0106] A transceiver unit, configured to receive first information, wherein the first information is used to indicate M bandwidth resources, where M is a positive integer, and the size of each bandwidth resource in 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 also configured to receive a first parameter, wherein the first parameter is the number of random access channel opportunities of frequency division multiplexing within a time unit;

[0107] a processing unit, configured to determine a first bandwidth resource from the M bandwidth resources according to the first information and the first parameter;

[0108] The transceiver unit is further configured to send uplink information or receive downlink information in the first bandwidth resource.

[0109] In conjunction with the fifth aspect, in some implementations of the fifth aspect, the value of the first parameter is greater than 4,

[0110] When M=1, the M bandwidth resources are the first bandwidth resources, the first bandwidth resources include resources of predefined N random access channel opportunities, wherein the first parameter random access channel opportunities include the N random access channel opportunities, N is a positive integer,

[0111] or,

[0112] When M=1, the M bandwidth resources are the first bandwidth resources, the transceiver unit is specifically used to receive first indication information, 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,

[0113] or,

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

[0115] In combination with the fifth aspect, in certain implementations of the fifth 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 an order from small to large frequency.

[0116] In combination with the fifth aspect, in certain 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 in the index {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 in the index {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 in the index {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 in the index {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 conjunction with the fifth aspect, in some implementations of the fifth aspect, the size of each bandwidth resource in the M bandwidth resources is predefined,

[0118] or,

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

[0120] or,

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

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

[0123] The transceiver unit is specifically used to receive second indication information, where the second indication information is used to indicate a second bandwidth resource, and the transceiver unit is further used 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 process in the second bandwidth resource, or send a physical uplink control channel for contention resolution message feedback.

[0125] In combination with the fifth aspect, in certain implementations of the fifth aspect, the second indication information is carried in one or more of a random access response message, downlink control information of a scheduled random access response message, a contention resolution message, and downlink control information of a scheduled contention resolution message; and / or, the second indication information is carried in the uplink authorization of each media access control random access response in the random access response message.

[0126] In combination with the fifth aspect, in certain implementations of the fifth aspect, M>1, and the transceiver unit is specifically used to send a random access preamble in the first bandwidth resource, and receive third indication information, wherein the third indication information is used to instruct the transceiver unit to send message 3 in the random access process and / or send the bandwidth resources of the physical uplink control channel for feedback of the contention resolution message.

[0127] In combination with the fifth aspect, in some implementations 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 process in the first bandwidth resource, and / or sends a physical uplink control channel for contention resolution message feedback 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 process in the second bandwidth resource, and / or sends a physical uplink control channel for contention resolution message feedback in the second bandwidth resource.

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

[0130] In combination with the fifth aspect, in some implementations of the fifth aspect, if the transceiver unit receives 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; 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 the 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 receive the fourth indication information, the association configuration of the SSB and the random access channel opportunity is the first association configuration.

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

[0134] In combination with the fifth aspect, in certain implementations of the fifth aspect, the first information includes system information.

[0135] In a sixth aspect, a communication device is provided, which may include a transceiver unit for sending a first parameter to a first terminal device, wherein the first parameter is the number of random access channel opportunities of frequency division multiplexing within a time unit; a processing unit for configuring M bandwidth resources, wherein the size of each bandwidth resource in the M bandwidth resources is equal to or less than the maximum channel bandwidth supported by the first terminal device; the transceiver unit is also used to receive uplink information sent by the first terminal device in the first bandwidth resource or send downlink information to the first terminal device, wherein the first bandwidth resource is determined by the first terminal device in the M bandwidth resources based on the first information and the first parameter.

[0136] In conjunction with the sixth aspect, in some implementations 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 resources, the first bandwidth resources include resources of predefined N random access channel opportunities, wherein the first parameter random access channel opportunities include the N random access channel opportunities, N is a positive integer,

[0138] or,

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

[0140] or,

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

[0142] In combination with the sixth aspect, in certain implementations of the sixth aspect, the value of the first parameter is 8, the indexes of the random access channel opportunities arranged in a first order are 0 to 7, and the first order includes an order from small to large 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 in index {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 in index {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 in index {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 in index {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, and is characterized in that:

[0153] The size of each bandwidth resource in the M bandwidth resources is predefined,

[0154] or,

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

[0156] or,

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

[0158] In combination with the sixth aspect, in certain implementations of the sixth aspect, M>1, and the transceiver unit is further used to send a second indication information, where the second indication information is used to indicate a second bandwidth resource, receive a random access preamble in the first bandwidth resource, receive message 3 in the random access process 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 certain implementations of the sixth aspect, the second indication information is carried in one or more of a random access response message, downlink control information of a scheduled random access response message, a contention resolution message, and downlink control information of a scheduled contention resolution message, and / or the second indication information is carried in the uplink authorization of each media access control random access response in the random access response message.

[0160] In combination with the sixth aspect, in certain implementations of the sixth aspect, M>1, and the transceiver unit is specifically used to receive a random access preamble in the first bandwidth resource and send a third indication information, wherein the third indication information is used to instruct the first terminal device to send message 3 in the random access process and / or send a bandwidth resource of 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 process in the first bandwidth resource, and / or receives a physical uplink control channel for contention resolution message feedback 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 process in the second bandwidth resource and / or receives a physical uplink control channel for contention resolution message feedback in the second bandwidth resource.

[0163] In combination with the sixth aspect, in certain implementations of the sixth aspect, the transceiver unit is also used to send fourth indication information, and 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 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 first association configuration, if the transceiver unit does not send the fourth indication information, then the association configuration of the SSB and the random access channel opportunity is the second association configuration,

[0165] or,

[0166] 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 second association configuration; 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 first association configuration.

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

[0168] In combination with the sixth aspect, in certain implementations of the sixth aspect, the first information includes system information.

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

[0170] In an eighth aspect, a communication device is provided, wherein the communication device is used to implement the second aspect or the fourth aspect, or any possible implementation method of the second aspect or the fourth aspect, or all possible implementation methods of the second aspect or the fourth aspect.

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

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

[0173] In an eleventh aspect, a computer-readable medium is provided, which stores a program code for execution by a device, wherein the program code includes a method executed by a first terminal device for executing any one of the implementations of the first aspect or the third aspect.

[0174] In a twelfth aspect, a computer-readable medium is provided, which stores a program code for execution by a device, wherein the program code includes a method executed by a network device in any one of the implementation modes of the second aspect or the fourth aspect.

[0175] In a thirteenth aspect, a computer program product comprising instructions is provided, and when the computer program product is run on a computer, the computer is enabled to execute a method in any one of the implementations of the first or second aspect above.

[0176] In a fourteenth aspect, a chip is provided, comprising a processor and a data interface, wherein the processor reads instructions stored in a memory through the data interface to execute a method in any one of the implementations of the first aspect, the second aspect, the third aspect, or the fourth aspect.

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

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

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

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

[0181] Figure 2 A schematic flow chart of a method for transmitting information according to an embodiment of the present application is shown.

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

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

[0184] Figure 5 A schematic diagram of resource distribution applicable to an embodiment of the present application is shown.

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

[0186] Figure 7 A schematic diagram of a resource applicable to an embodiment of the present application is shown.

[0187] Figure 8 A schematic diagram of resource distribution applicable to an embodiment of the present application is shown.

[0188] Fig. 9 A schematic diagram of a method for determining a resource location applicable to an embodiment of the present application is shown.

[0189] Fig.10 A schematic diagram of a resource location applicable to an embodiment of the present application is shown.

[0190] Fig.11 A schematic flow chart of a method for transmitting information according to an embodiment of the present application is shown.

[0191] Fig.12 A schematic diagram of a resource applicable to an embodiment of the present application is shown.

[0192] Fig.13 A schematic diagram of a method for determining a resource location applicable to an embodiment of the present application is shown.

[0193] Fig.14 A schematic block diagram of a communication device according to an embodiment of the present application is shown.

[0194] Fig.15 A schematic block diagram of another communication device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0195] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0196] The embodiments of the present application can be applied to various communication systems, such as wireless local area network system (Wireless Local Area Network, WLAN), narrowband Internet of Things system (Narrow Band-Internet of Things, NB-IoT), global system for mobile communications (Global System for Mobile Communications, GSM), enhanced data rate for GSM evolution system (Enhanced Data rate for GSM Evolution, EDGE), wideband code division multiple access system (Wideband Code Division Multiple Access, WCDMA), code division multiple access 2000 system (Code Division Multiple Access, CDMA2000), time division synchronous code division multiple access system (Time Division-Synchronization Code Division Multiple Access, TD-SCDMA), long term evolution system (Long Term Evolution, LTE), satellite communication, fifth generation (5th generation, 5G) system or new communication systems that will appear in the future.

[0197] Mobile communication technology has profoundly changed people's lives, but people's pursuit of higher-performance mobile communication technology has never stopped. In order to cope with the explosive growth of mobile data traffic, massive mobile communication device connections, and the emergence of various new services and application scenarios in the future, 5G mobile communication systems have come into being. The International Telecommunication Union (ITU) has defined three major 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 features of these services are large data transmission volume and high transmission rate. Typical URLLC services include wireless control in industrial manufacturing or production processes, motion control of driverless cars and drones, and tactile interactive applications such as remote repair and remote surgery. The main features of these services are ultra-high reliability, low latency, small data transmission volume and burstiness. Typical mMTC services include smart grid distribution automation, smart cities, etc. The main features are a huge number of networked devices, small data transmission volume, and data insensitivity to transmission delay. These mMTC terminals need to meet the requirements of low cost and very long standby time.

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

[0200] Research on mMTC in 5G standards has not been widely carried out.

[0201] At present, the user equipment (UE) for mMTC services is referred to in the standard as low-complexity UE (reduced capability UE, REDCAP UE), or narrow-bandwidth user equipment, or IoT device, or low-end smart 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 called a lightweight version of the terminal device (NR light, NRL). The maximum bandwidth supported by the mMTC user equipment is less than 100MHz. It should be noted that the mMTC user equipment in this application is not only a machine-type communication device, but also a smart handheld terminal.

[0202] A schematic diagram of the architecture of a mobile communication system used in the embodiment of the present application. Figure 1 As shown, the mobile communication system includes a wireless access network device 120, namely a network device 120 and at least one terminal device (such as Figure 1The terminal device is connected to the wireless access network device by wireless means, and the wireless access network device is connected to the core network device by wireless or wired means. The core network device and the wireless access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated on the same physical device, or part of the functions of the core network device and part of the functions of the wireless access network device can be integrated on one physical device. The terminal device can be fixed or movable. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Figure 1 The embodiments of the present application do not limit the number of core network devices, wireless access network devices and terminal devices included in the 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 limit this. It is sufficient that there is a first type of terminal device participating in the communication in the communication system.

[0204] The embodiment of the present application takes the network device and the first terminal device as the interacting parties as an example to present the solution, but does not limit this.

[0205] The wireless access network device is an access device that the terminal device uses to access the 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 technology and specific device form adopted by the wireless access network device.

[0206] The terminal device may also be referred to as a terminal, a user equipment UE, a mobile station (MS), a mobile terminal (MT), etc. The terminal device may 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, etc.

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

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

[0209] The wireless access network equipment and the terminal equipment, as well as the terminal equipment and the terminal equipment, can communicate through the licensed spectrum, or can communicate through the unlicensed spectrum, or can communicate through the licensed spectrum and the unlicensed spectrum at the same time. The wireless access network equipment and the terminal equipment, as well as the terminal equipment and the terminal equipment, can communicate through the spectrum below 6G, or can communicate through the spectrum above 6G, or can communicate through the spectrum below 6G and the spectrum above 6G at the same time. The embodiments of the present application do not limit the spectrum resources used between the wireless access network equipment and the terminal equipment.

[0210] In order to facilitate the understanding of this application, a brief description of the random access process is given. The random access process is as follows:

[0211] The terminal device searches for the synchronization signal and physical broadcast channel (Synchronization Signal and PBCH, SSB). By searching the SSB, the terminal device obtains the master information block (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 (Control resource set, CORESET) according to the MIB. The terminal device can detect the downlink control information (Downlink control information, DCI) of the scheduling system information block (System information block, SIB) on the CORESET, and receive SIB1 at the time and frequency position indicated by the DCI. In this way, the initial uplink bandwidth part (initial uplink bandwidth part, Initial UL BWP), initial downlink bandwidth part (initial downlink bandwidth part, Initial DL BWP), random access preamble list, random access opportunity list and other information indicated in SIB1 can be received.

[0212] According to SIB1, the terminal device sends a physical random access channel (PRACH, Msg1) carrying a random access preamble in the random access occasion (RACH 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 (Random access response, RAR) to the UE within the pre-configured RAR window, i.e., Msg2;

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

[0215] It should be understood that if the base station cannot receive the preamble due to a conflict in random access preambles selected between different UEs or poor channel conditions, the base station will not send RAR information, and the UE will not detect DCI and MAC RAR in the RAR window, and the random access will fail.

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

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

[0218] In order to facilitate understanding of the embodiments of the present application, the following briefly introduces the relevant concepts involved in the present application:

[0219] 1. The UE in the present application can be divided into a first type of terminal device and a second type of terminal device. The first type of terminal device is, for example, a low complexity UE (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, number of supported or configured resources, number of transmit antenna ports and / or number of receive antenna ports, number of RF channels, number of hybrid automatic repeat request (HARQ) processes, supported peak rate, application scenarios, latency requirements, processing capabilities, protocol version, duplex mode, services, etc. The first feature is described in detail below.

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

[0223] The number of resources supported or configured may be RBs, REs, subcarriers, RB groups, REG bundles, control channel elements, subframes, radio frames, time slots, mini time slots and / or symbol numbers. 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 transmitting antenna ports and / or the number of receiving antenna ports, that is, the number of transmitting antenna ports and / or the number of receiving 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 transmitting antenna ports of the first type of terminal device can be 1, and the number of receiving antenna ports can be 2; the number of transmitting antenna ports of the second type of terminal device can be 2, and the number of receiving antenna ports can be 4.

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

[0226] The number of HARQ processes, that is, 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 supported by the first type of terminal device may be 8, and the number of HARQ processes supported by the second type of terminal device may be 16.

[0227] The supported peak rates, that is, 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 may be 100Mbps, and the peak rate supported by the second type of terminal device may be 200Mbps.

[0228] Application scenarios, that is, the first type of terminal devices and the second type of terminal devices serve different application scenarios. For example, the first type of terminal devices are used in industrial wireless sensors, video surveillance, wearable devices, etc., and the second type of terminal devices are used in mobile communications, video surfing, etc.

[0229] Delay requirements, that is, the first type of terminal device and the second type of terminal device have different requirements for transmission delay. For example, the delay requirement of the first type of terminal device may be 500 milliseconds, and the delay requirement of the second type of terminal device may be 100 milliseconds.

[0230] The processing capability and the processing timing and processing speed of the channel or data of the first type of terminal device and the second type of terminal device under different subcarrier space (SCS) conditions are different. For example, the first type of terminal device does not support complex operations, and the complex operations may include artificial intelligence (AI) and virtual reality (VR) rendering, while 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] Protocol version, that is, the first type of terminal device and the second terminal device belong to terminal devices of different protocol versions, for example: the protocol version supported by the first type of terminal device is Release 17 and later protocol versions, and the protocol version supported by the second type of terminal device is earlier than Release 17, such as Release 15 or Release 16.

[0232] Duplex mode, the duplex mode includes half-duplex and full-duplex, for example: the first type of terminal equipment works in half-duplex mode, and the second type of terminal equipment works in full-duplex mode.

[0233] Services include but are 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. This embodiment of the application does not limit this.

[0234] It should be understood that other types or future new types of terminal devices that also support the technical solution 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 a first type of terminal device, and the second terminal device may be an example of a second type of terminal device.

[0236] 2. Initial downlink bandwidth part (Initial DLBWP): Indicated in SIB1 that the frequency range includes CORESET, but it will not take effect until Msg4 is received.

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

[0238] 4. CORESET: Control resource set. The terminal device is receiving downlink control information or downlink data information in CORESET. When the terminal device has not established an RRC connection with the peer device, the frequency range of receiving the downlink control channel and the downlink data channel is in 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 low-complexity terminal equipment is a relative concept, and this application does not limit this. For example, a new type of terminal equipment that may be developed in the future has at least one feature of bandwidth, number of antennas, device power consumption, etc. that is more complex than the existing legacy UE. At that time, the legacy UE will be used as the first type of terminal equipment in this application, and the new type of terminal equipment will be used as the second type of terminal equipment in this application. The embodiments of this application are still applicable and within the scope of protection of this application.

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

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

[0244] End resource block (RB): the resource block with the largest index in the bandwidth, or the last resource block in the bandwidth.

[0245] It should be understood that the resource in the present application may be a symbol, or a time slot, or a mini time slot, or a subframe, etc. The resource in the present application may also be a subcarrier, or a resource block, or a carrier, or a channel control element, etc.

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

[0247] In order to facilitate understanding of the embodiments of the present application, relevant terms are explained in advance.

[0248] The various embodiments of the present application have different descriptions of resources, such as first resources and bandwidth resources.

[0249] The first resource may be an uplink BWP, a downlink BWP, 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 RRC connection is established, CORESET a is CORESET 0; for example, before the RRC connection is established or after the RRC connection is established, CORESET a may also be a public CORESET, and at least one RB of the public CORESET may not be within the scope of CORESET 0, that is, CORESET a and CORESET 0 may be different CORESETs.

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

[0251] In the present 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 may be predefined or indicated by the network device. For example, the size may 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 may be equivalent, and the method for determining the resource in each embodiment may be applicable to both the first resource and the bandwidth resource.

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

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

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

[0256] The physical uplink control channel for contention resolution message feedback includes: 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 sends one or more of uplink control channel, uplink shared channel, random access channel, uplink demodulation reference signal, and sounding reference signal in the uplink BWP. For UEs capable of simultaneous downlink reception and uplink transmission, the UE sends uplink information in the uplink BWP and receives downlink information in the downlink BWP. The frequency ranges of the uplink BWP and the uplink BWP may be different. For example, a frequency division multiplexing FDD UE is capable of simultaneous downlink reception and uplink transmission. For example, a TDD uplink and downlink decoupled UE is capable of simultaneous downlink reception and uplink transmission. Taking the UE before the RRC connection is established as an example, the UE needs to send one or more of Msg1, PUSCH carrying Msg3, PUSCH carrying retransmission of Msg3, and PUCCH for feedback on Msg4 in the initial UL BWP.

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

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

[0260] To solve the above problem, an embodiment of the present application proposes a method for transmitting information, such as Figure 2 As 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 may include a first reference point and may also include a first bandwidth. The first reference point may be used to determine the location of the first resource. The first bandwidth may 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 may also be predefined, which is not limited in this application.

[0263] 201: The first terminal device determines a first resource according to the first reference point and / or the first bandwidth, where the size of the first resource is equal to or smaller 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 may indicate the first reference point and the first bandwidth at the same time, such as Figure 3 , or you can give instructions in batches, such as Figure 4 One indication information may indicate the first reference point and the other indication information may indicate the first bandwidth, or one indication information may indicate the first bandwidth and the other indication information may indicate the first reference point, or only the first reference point or only the first bandwidth.

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

[0267] For example, the network device may first receive channel state information (Channel State Information, CSI) of the first terminal device, where the CSI includes subband size information, and the network device determines the bandwidth of the first resource of the first terminal device according to the size of the subband.

[0268] It should be understood that the first reference point can be used as the location of the first resource, and the location of the first resource can also be determined based on the first reference point and the first offset.

[0269] The first bandwidth, the first offset and the first reference point may also be predefined, which is not limited in the present application.

[0270] The first bandwidth can be determined based on one or more of the subband size reported by CSI, the subcarrier spacing, and the bandwidth supported by the first terminal device.

[0271] The first offset may also be determined based on one or more of the subband size reported by the CSI, the subcarrier spacing, and the first bandwidth supported by the first terminal device.

[0272] Specifically, the first bandwidth may be configured through the first configuration information, the first offset may be configured through the second configuration information, and the first reference point may be configured through the third configuration information. The first configuration information, the second configuration information, and the third configuration information may be carried in different information or in the same information, for example, in SIB1.

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

[0274] The bandwidth supported by the first terminal device may be a channel bandwidth or a transmission bandwidth corresponding to the channel bandwidth. For example, the bandwidth supported by the first terminal device may 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 may be the minimum bandwidth among the maximum channel bandwidths supported by the first terminal device. For example, the maximum channel bandwidth supported by the first terminal device as reported may be 5MHz, 10MHz, 15MHz, 20MHz, and the first channel bandwidth may be one of 5MHz, 10MHz, 15MHz, and 20MHz, wherein the minimum bandwidth among the maximum channel bandwidth supported by the first terminal device as reported is 5MHz, that is, the first channel bandwidth may also be 5MHz.

[0276] In a possible implementation, the first bandwidth may be determined according to a positive integer multiple of the bandwidth supported by the first terminal device. For example, the first bandwidth is determined according to a positive integer multiple of 5 MHz. The bandwidth supported by the first terminal device may be a first transmission bandwidth, where the first transmission bandwidth is the number of resource blocks corresponding to the first channel bandwidth under different subcarrier spacings. For example, under different subcarrier spacings, the correspondence between the first channel bandwidth and the first transmission bandwidth is shown in Table 1.

[0277] When the subcarrier spacing is 15KHz, corresponding to the bandwidth of 5MHz, the first transmission bandwidth is 25 RBs. Correspondingly, the first bandwidth can be determined according to the positive integer multiples of 25 RBs, such as 25 RBs, 50 RBs, 75 RBs, 100 RBs, etc. For another example, when the subcarrier spacing is 30KHz, the first transmission bandwidth corresponding to 5MHz is 11 RBs, then the first bandwidth can be determined according to the positive integer multiples of 11 RBs. For another example, the first bandwidth can be determined according to the positive integer multiples of 10 RBs. For another example, when the subcarrier spacing is 60KHz, the first transmission bandwidth corresponding to 10MHz is 11 RBs. The bandwidth can be determined according to the positive integer multiples of 11 RBs.

[0278] Table 1 Relationship between 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 according to the first reference point and the first offset, the method for determining the first offset is the same as the method in the above embodiment, which will not be described in detail here.

[0282] In another possible implementation, when the bandwidth supported by the first terminal device is the first transmission bandwidth, resource blocks other than the positive integer multiples of the first transmission bandwidth are used to send the first control channel. The resource blocks other than the positive integer multiples of the first transmission bandwidth include the first transmission resources and / or the second transmission resources, such as Figure 5 As 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; wherein M1 and M2 are positive integers, and the second resource is the BWP of the second type of terminal equipment, or the corresponding carrier bandwidth at different subcarrier spacings.

[0283] For example, the first control channel may include the first hop transmission of the PUCCH for the feedback of Msg4, or 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 15KHz, the first transmission bandwidth corresponding to 5MHz is 25 RBs, the number of RBs corresponding to the maximum channel bandwidth of 50MHz 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 can be 25 RBs, and the first offset can be 25 RBs. When the subcarrier spacing is 15KHz, a maximum of 10 first bandwidths can be configured, a total of 250 RBs, and the number of RBs corresponding to the maximum channel bandwidth of 50MHz is 270 RBs. The remaining 20 RBs are distributed at both ends of the carrier. Then the first transmission resource can be the M1 resource blocks with the smallest index in the second resource, and the second transmission resource can be the M2 resource blocks with the largest index in the second resource.

[0285] The above solution uses the first bandwidth as the granularity, which can, on the one hand, greatly reduce the optional range of bandwidth, and on the other hand, can be used as the minimum bandwidth configured for the UE in the case of saving energy consumption.

[0286] A possible implementation manner is to determine the first resource and / or the first offset according to the subband size reported by the CSI.

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

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

[0289] In a possible implementation, the first resource and / or the first offset are determined according to the subband size reported by the CSI and the resource allocation granularity of the control resource set. The first resource and / or the first offset may be determined according to a common multiple of the subband size reported by the CSI and the resource allocation granularity of the control resource set. For example, the subband size reported by the CSI may be 4 RBs, and the CORESET resource allocation granularity may be 6 RBs. According to the common multiple of the number of RBs of the above two items, for example, a multiple of 12 RBs may be used as the first bandwidth and / or as the first offset.

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

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

[0292] The above scheme determines the bandwidth of the first resource according to the subband size reported by the CSI, solves the problem that the number of subbands reported by the UE increases due to the mismatch between the subband and the bandwidth of the first resource, increases the CORESET resource allocation granularity and the resource block group as the basis for configuring the first bandwidth, and avoids the mismatch between the first bandwidth and the subband size reported by the CSI, the resource allocation of the CORESET, and the resource allocation of the data channel type 0, thereby avoiding the waste of resources. Figure 7 , reducing the complexity of UE reporting CSI.

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

[0294] In a possible implementation, the first bandwidth and the first offset in the above embodiment may be associated with the subcarrier spacing. There is a first association relationship between the first bandwidth and the subcarrier spacing; and / or, there is a second association relationship between the first offset and the subcarrier spacing. For example, the first association relationship may be: the larger the subcarrier spacing, the smaller the first bandwidth. For another example, the second association relationship may be: the larger the subcarrier spacing, the smaller the first offset. The first association relationship may also be: the larger the subcarrier spacing, the smaller the size of the first resource is proportionally reduced. For another example, the second association relationship may be: the larger the subcarrier spacing, the smaller the first offset is proportionally reduced.

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

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

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

[0298] For example, the first terminal device may receive indication information, where the indication information indicates a first reference point, where the first reference point may be one or more of the first RB of the second resource, the center frequency or the center subcarrier of the second resource, the last RB of the second resource, the common resource block 0, and Point A. The indication information may be carried in SIB1 or a PDCCH that schedules SIB1.

[0299] The second resource is a resource configured for the second type of terminal device, and the number of resource blocks contained 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 subcarrier intervals, and the second resource can also be the BWP of the second type of terminal device.

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

[0301] In a possible implementation, the positions of the start RB and the end RB of the second resource may be indicated by signaling, such as Figure 8 As shown, two of the multiple candidate bandwidths may use the end RB of the second resource as a reference point, and the other three candidate bandwidths may use the start RB of the second resource as a reference point.

[0302] Another possible implementation manner is to indicate the position of the start RB or the end RB of the second resource through signaling, and determine the candidate bandwidths in sequence through the indicated reference points.

[0303] It should be understood that the number here, and the corresponding relationship between the number and the start RB and the end RB are just examples and are not limited to this.

[0304] Another possible implementation manner is to use CRB 0 (Point A) as a reference point and 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 where the first resource occupies less than one RB in some frequency domains and causes resource waste.

[0306] In another possible implementation, when the first terminal device and the second terminal device share the BWP, the reference point is determined by jointly considering the position of the second resource and the starting position of the CRB, and the frequency position aligned with the CRB resource can be used as the reference point, for example Fig. 9 As shown in (a) in FIG. 1 , 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] Another possible implementation method is to configure the frequency domain offset of the first resource according to one or more of the subband size reported by CSI, CORESET resource allocation granularity, resource block group (RBG), subcarrier spacing, and the minimum channel bandwidth supported by the first terminal device. The offset can be the RB that the starting position of the first resource is offset from the position of the second resource.

[0309] For example, Fig. 9 As shown in (b), 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 + first offset, BW),

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

[0311] The first reference point and the first offset can be determined according to the scheme in the above embodiment, which will not be described in detail here. For example, the first offset can be an integer multiple of 25 RBs, the RB position of Start_RB+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, Start_RB is used as the starting position of the first resource by default.

[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 jointly encodes at least two of the first bandwidth, the first reference point, and the first offset. For example, the first bandwidth can be selected as 5MHz, 10Mhz, 20MHz (or 25RB, 50RB, 100RB), and the first offset is an integer multiple of 25 RBs, then a total of 30 states need to be indicated, requiring 5 bits

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

[0315] In another embodiment of the present application, the first reference point serves as a reference point for the first bandwidth position and may be the position of a 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] 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 (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 transmission after the first transmission of the PUSCH carrying Msg3 (the transmission after the initial transmission of Msg3, including the retransmission of Msg3 or the repetition of Msg3), the first hop transmission of the transmission after the first transmission of the PUSCH carrying Msg3 (the initial transmission of Msg3). One or more of the following: the first hop transmission of the transmission after the first transmission of PUCCH of Msg4, the first transmission of PUCCH of Msg4 (the first hop transmission of the first transmission of PUCCH of Msg4), the transmission after the first transmission of PUCCH of Msg4 (the transmission after the first transmission of PUCCH of Msg4), the first hop transmission of the transmission after the first transmission of PUCCH of Msg4 (the first hop transmission of the transmission after the first transmission of 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 center 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 center 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 center 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 location of the first resource includes the first RB of the first resource; or, the location of the first resource includes the last RB of the first resource; or, the location of the first resource includes the center RB of the first resource; or, the location of the first resource includes the first subcarrier of the first RB of the first resource; or, the location of the first resource includes the first subcarrier of the last RB of the first resource; or, the location of the first resource includes the first subcarrier of the center RB of the first resource; or, the location of the first resource includes the last subcarrier of the first RB of the first resource; or, the location of the first resource includes the last subcarrier of the last RB of the first resource; or, the location of the first resource includes the last subcarrier of the center 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 location of the first random access resource may be predefined or indicated by signaling.

[0323] For example, the first terminal device determines the position of the first resource according to the position of the predefined first random access resource. For example, the position of the predefined 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. Fig.10 As shown, the position of the predefined first random access resource may be the last RB of the fourth random access resource or the last subcarrier of the last RB. The position of the predefined first random access resource may also be the first RB of the fifth random access resource or the first subcarrier of the first RB. The position of the first resource may be based on the position of the predefined first random access resource as the starting position. The first RB of the fifth 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 be based on the position of the predefined first random access resource as the ending position.

[0324] The location 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 for scheduling SIB1, random access response (RAR), DCI for scheduling RAR, scheduling Msg3 uplink grant, Msg3, contention resolution message, and DCI for scheduling 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, such as Fig.11 As shown:

[0326] 1101: The network device sends first information and a first parameter to a first terminal device, where 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 of frequency division multiplexing within a time unit. The first terminal device is a first type of terminal device, and the size of each bandwidth resource in 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 may also be predefined.

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

[0329] It should be understood that the first information may 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 may be included in the random access channel configuration information.

[0332] The random access channel configuration information may also include other information of the PRACH. For example, the random access channel opportunity is a PRACH transmission occasion, and the first terminal device sends a random access preamble through the PRACH transmission occasion. For another example, the time slot in which the first terminal device can send the PRACH 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 may indicate the number of PRACH transmission occasions that can be frequency-division multiplexed on a frequency within a PRACH occasion. A time slot may include one or more time units. When a time slot includes multiple time units, a time unit may be s symbols, s is a positive integer greater than 1, and the first parameter may indicate the number of PRACH transmission occasions that can be frequency-division multiplexed on a frequency within a time unit. The value of the first parameter may be 1, 2, 4, 8, etc.

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

[0335] In a possible implementation manner, the size of each bandwidth resource in the M bandwidth resources may be predefined or indicated by a network device. For example, the size of each bandwidth resource may 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 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}. 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 include resources for all random access channel opportunities, and the first terminal device can determine the center frequency when sending PRACH according to the bandwidth resources, which can reduce the number of frequency tuning times.

[0337] In another possible implementation, M>1, the first terminal device can obtain a first signaling indicating a first bandwidth resource among the M bandwidth resources, and the other M-1 bandwidth resources among the M bandwidth resources are determined based on the first bandwidth resource.

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

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

[0340] For example, if the value of the first parameter is 8, and the first information configures only one bandwidth resource for the first terminal device, then the bandwidth resource is the first bandwidth resource of the first terminal device. The first bandwidth resource may include resources of N predefined random access channel opportunities, and the resources of the N random access channel opportunities belong to the first parameter random access channel opportunities, where N is a positive integer. The resources of the predefined N random access channel opportunities may be: the resources of the lower N random access channel opportunities sorted in order of resources from low to high according to the frequency resource position. Specifically, N=4, and the value of the first parameter may be 8. The resources of the predefined N random access channel opportunities need to include the resources of the random access channel opportunity where the random access preamble transmission is located. This scheme can save bit overhead, and can ensure that the transmission of the random access preamble does not require frequency tuning, thereby reducing the number of frequency tuning times. For example, the first bandwidth resource is determined based on the resources of the random access channel opportunity where the random access preamble transmission is located. The first bandwidth resource is a resource starting with the first RB of the resources of the random access channel opportunity where the random access preamble transmission is located or the first subcarrier of the first RB; or, the first bandwidth resource is determined according to the resources of the random access channel opportunity where the random access preamble transmission is located, and the first bandwidth resource is a resource ending with the last RB of the resources of the random access channel opportunity where the random access preamble transmission is located or the last subcarrier of the last RB. 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 only configure one bandwidth resource.

[0341] It should be understood that this scenario is only an example and this application does not limit it.

[0342] In a possible implementation, when the value of the first parameter is greater than 4 and M=1, the bandwidth resource is the first bandwidth resource of the first terminal device, and the first terminal device also obtains the first indication information, and the first indication information can 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 information is that the first terminal device is only configured with 1 bandwidth resource, then the bandwidth resource is the first bandwidth resource of the first terminal device. The starting resource block of the first bandwidth resource can be determined according to the first indication information. For example, the first random access channel opportunity is a random access channel opportunity with an index of r, where r is an integer greater than or equal to 0. 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 it can also be understood that the frequency position of the starting resource block of the first bandwidth resource is aligned with the frequency position of the starting resource block of the first random access channel opportunity. For example, N=4, the value of the first parameter can be 8. 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 only configure one bandwidth resource.

[0343] For example, 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 index 0, the first bandwidth resource may include resources with random access channel opportunity indexes {0,1,2,3}. If the first indication information indicates index 4, the first bandwidth resource may include resources with random access channel opportunity indexes {4,5,6,7}. For example, the first bandwidth resource is indicated according to the resource of the random access channel opportunity where the random access preamble transmission is located. The first bandwidth resource is a resource starting with the first RB of the resource of the random access channel opportunity where the random access preamble transmission is located or the first subcarrier of the first RB; or, the first bandwidth resource is determined according to the resource of the random access channel opportunity where the random access preamble transmission is located, and the first bandwidth resource is a resource ending with the last RB of the resource of the random access channel opportunity where the random access preamble transmission is located or the last subcarrier of the last RB. The two possible positions of the first bandwidth resources indicated by this scheme can include all the resources of the random access channel opportunities, and can ensure that the transmission of the random access preamble does not require frequency tuning, thereby reducing the number of frequency tuning times.

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

[0345] For example, 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 index 1, the first bandwidth resource may include resources with random access channel opportunity indexes {1,2,3,4}. If the first indication information indicates index 2, the first bandwidth resource may include resources with random access channel opportunity indexes {2,3,4,5}. If the first indication information indicates index 3, the first bandwidth resource may include resources with random access channel opportunity indexes {3,4,5,6}. If the first indication information indicates index 4, the first bandwidth resource may include resources with random access channel opportunity indexes {4,5,6,7}. The positions of the four possible first bandwidth resources indicated by this scheme 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, reduces the number of frequency tuning times, and is more flexible in indication.

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

[0347] For example, the first indication information includes 3 bits, and the first indication information may also indicate the index of the first random access channel opportunity in the random access channel opportunity index {0,1,2,3,4,5,6,7}. If the first indication information indicates index 0, the first bandwidth resource may include resources with random access channel opportunity indexes {0,1,2,3}. If the first indication information indicates index 1, the first bandwidth resource may include resources with random access channel opportunity indexes {1,2,3,4}. If the first indication information indicates index 2, the first bandwidth resource may include resources with random access channel opportunity indexes {2,3,4,5}. If the first indication information indicates index 3, the first bandwidth resource may include resources with random access channel opportunity indexes {3,4,5,6}. If the first indication information indicates index 4, the first bandwidth resource may include resources with random access channel opportunity indexes {4,5,6,7}. If the first indication information indicates index 5, the first bandwidth resource may include resources with random access channel opportunity indexes {5,6,7}. If the first indication information indicates index 6, the first bandwidth resource may include a resource with a random access channel opportunity index of {6,7}. If the first indication information indicates index 7, the first bandwidth resource may include a resource with a random access channel opportunity index of {7}. The 8 possible first bandwidth resource positions indicated by this solution can include all random access channel opportunity resources, can ensure that the transmission of the random access preamble does not require frequency tuning, reduce the number of frequency tuning times, and provide more flexible indication.

[0348] For example, the index of the first random access channel opportunity can also be determined by 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 may be default. If the first indication information is default, the first random access channel opportunity is a random access channel opportunity with an index of 0. This scheme can be combined with the aforementioned embodiments. For example, this scheme can be applied together with the first indication information that may include 2 bits. If the first indication information is default, the first random access channel opportunity is a 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 in the random access channel opportunity index {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 resources of one or more random access channel opportunities in the first parameter random access channel opportunities, and the first terminal device determines the first bandwidth resource in 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 configure multiple bandwidth resources.

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

[0351] It can be understood that different bandwidth resources in the M bandwidth resources contain different resources of random access channel opportunities. For example, the value of the first parameter is 8, and the first information configures 2 bandwidth resources for the first terminal device, and each of the 2 bandwidth resources contains resources of one or more random access channel opportunities in the 8 random access channel opportunities. For example, Fig.13 As shown, one of the two bandwidth resources includes resources of random access channel opportunities indexed as {0,1,2,3}, and the other bandwidth resource includes resources of random access channel opportunities indexed as {4,5,6,7}. The first terminal device can determine the first bandwidth resource from the two bandwidth resources. The first bandwidth resource can be a bandwidth resource indexed as {0,1,2,3} or a bandwidth resource indexed as {4,5,6,7}. The first bandwidth resource can be determined based on the resources of 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, thereby reducing the number of frequency tuning times.

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

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

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

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

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

[0357] The bandwidth resources for the first terminal device to send a random access preamble may be different from the bandwidth resources for sending message 3 in the random access process. The bandwidth resources for the first terminal device to send a random access preamble may be different from the bandwidth resources for sending a physical uplink control channel for contention resolution message feedback. The bandwidth resources for the first terminal device to send a random access preamble may be different from the bandwidth resources for sending message 3 in the random access process and the physical uplink control channel for contention resolution message feedback. The bandwidth resources for the first terminal device to send message 3 in the random access process may be different from the bandwidth resources for sending a physical uplink control channel for contention resolution message feedback. For example, the fifth 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, indicating a third bandwidth resource, the first terminal device sends message 3 in the random access process in the second bandwidth resource, the first terminal device sends a physical uplink control channel for contention resolution message feedback in the third bandwidth resource, the third bandwidth resource is the same as or different from the first bandwidth resource, and the third bandwidth resource is the same as or different from the second bandwidth resource. For another example, the first terminal device sends a random access preamble in the first bandwidth resource, and the second indication information is a DCI for scheduling RAR, indicating the second bandwidth resource. Then the first terminal device sends message 3 in the random access process in the second bandwidth resource, or sends a physical uplink control channel for contention resolution message feedback. For another example, the first terminal device can also receive fifth indication information, and the fifth indication information is a DCI for scheduling Msg4, indicating the third bandwidth resource. Then the first terminal device sends a physical uplink control channel for contention resolution message feedback 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] In a possible implementation, the configuration of the M bandwidth resources is only used for the first type of terminal device. 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 the first type of terminal device. The configuration of the M bandwidth resources is independently configured for the first type of terminal device, which can be understood as being configured through an independent field or an independent parameter, and the independent field or the independent parameter is different from the field or parameter of the second type of terminal device, or the content of the independent field or the independent parameter configuration is different from the content of the field or parameter configuration of the second type of terminal device.

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

[0369] For example, when the random access channel configuration information is used for a first type of terminal device and for a second type of terminal device, 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 configured jointly by the first type of terminal device and the second type of terminal device, that is, it is not independently configured for the first type of terminal device. For example, the value of the first parameter is 8.

[0370] For example, when the random access channel configuration information is used for a first type of terminal device and for a second type of terminal device, 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 configured jointly by the first type of terminal device and the second type of terminal device, that is, it is not independently configured for the first type of terminal device.

[0371] For example, when the random access channel configuration information is used for a first type of terminal device and for a second type of terminal device, 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 a bandwidth resource that includes a first parameter number of random access channel opportunities. For example, the random access channel configuration information is configured jointly by a first type of terminal device and a second type of terminal device, that is, it is not independently configured for the first type of terminal device. For example, the value of the first parameter is 1 or 2 or 4. For example, the bandwidth resources for a first parameter number of random access channel opportunities may be resources for a predetermined first parameter number of random access channel opportunities, or may be a first bandwidth resource determined by the first indication information.

[0372] The determination of the first bandwidth resource and the second bandwidth resource may refer to the method in the above embodiment, which will not be described in detail here.

[0373] For example, the random access channel configuration information is only used for the first type of terminal device, the first information indicates a first bandwidth resource, and 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 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 sends uplink information or receives downlink information in the first bandwidth resource.

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

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

[0376] For example, the type of the association configuration may 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 association configuration between the SSB and the random access channel opportunity is the first association configuration; when the indication information does not appear, the first terminal device determines that the association configuration between the SSB and the random access channel opportunity is the second association configuration. For example, the indication information is an optional configuration. If the indication information is configured, that is, the indication information appears, the association configuration between the SSB and the random access channel opportunity is the first association configuration. If the indication information is not configured, that is, the indication information does not appear, the association configuration between the SSB and the random access channel opportunity is the second association configuration. For example, the indication information is identification information, which includes 1 bit.

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

[0379] For an FDD system or a TDD uplink and 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] The present application determines the bandwidth resources for uplink transmission or the bandwidth resources for downlink reception so that the total frequency range of two adjacent uplink transmissions or the total frequency range of two adjacent downlink receptions is within the maximum channel bandwidth supported by the terminal device, thereby avoiding frequency tuning between frequent uplink transmissions and / or avoiding frequency tuning between frequent downlink receptions, thereby increasing the symbols available for data transmission, improving resource utilization efficiency, avoiding increasing UE power consumption and reducing the complexity of UE implementation.

[0381] The various embodiments described herein may be independent solutions or may be combined according to internal logic, and all of these solutions fall within the protection scope of this application.

[0382] In the embodiments provided by the present application, the methods provided by the embodiments of the present application are introduced from the perspective of interaction between various devices. In order to realize the functions in the methods provided by the embodiments of the present application, the network device or the terminal device may include a hardware structure and / or a software module, and the functions are realized in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a function in the above functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

[0383] The division of modules in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0384] Same as above idea, Fig.14 As shown, the embodiment of the present application also provides a device 1300 for implementing the functions of the network device or terminal device in the above method. For example, the device can be a software module or a chip system. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices. The device 1300 may include: a processing unit 1310 and a communication unit 1320.

[0385] In the embodiment of the present 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 terminal device in the above method embodiment.

[0386] The following, combined Figure 14 to Figure 15The communication device provided in the embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the contents not described in detail can be referred to the method embodiment above, and will not be repeated here for the sake of brevity.

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

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

[0389] A processing unit, configured to determine a resource for transmitting information according to downlink information of a network device or according to a predefined method,

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

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

[0392] A processing unit is used to configure resources or determine resources according to predefined requirements.

[0393] The communication unit is used to send and receive information.

[0394] The above is just an example. The processing unit 1310 and the communication unit 1320 can also perform other functions. For more detailed description, please refer to Figures 2 to 13 The related descriptions in the method embodiment shown or other method embodiments are not repeated here.

[0395] like Fig.15 The device 1400 provided in the embodiment of the present application is shown. Fig.15 The device shown can be Fig.14 The communication device can be applied to the flowchart shown above to perform the functions of the terminal device or network device in the above method embodiment. For the convenience of explanation, Fig.14 Only the main components of the communication device are shown.

[0396] like Fig.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 is understood that the interface circuit 1420 can be a transceiver or an input-output interface. Optionally, the communication device 1400 may also include a memory 1430 for storing instructions executed by the processor 1410 or storing input data required by the processor 1410 to execute instructions or storing data generated after the processor 1410 executes instructions.

[0397] When the communication device 1400 is used to implement Figures 2 to 13 When the method is shown, the processor 1410 is used to implement the function of the above-mentioned processing unit 1310, and the interface circuit 1420 is used to implement the function 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 in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or an antenna), and the 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 function of the network device in the above method embodiment. The network device chip receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or the network device chip sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device.

[0400] It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0401] In the embodiments of the present application, the processor can be a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a register, a hard disk, a mobile hard disk, a CD-ROM or any other form of storage medium 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 can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal device. Of course, the processor and the storage medium can also be present in a network device or a terminal device as discrete components.

[0402] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt 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.) that contain computer-usable program code.

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

[0404] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

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

[0406] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the 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: include: Receive 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 a size of each bandwidth resource in the M bandwidth resources is equal to or less than a maximum channel bandwidth supported by the first terminal device; Receiving a first parameter, the first parameter being the number of frequency division multiplexed random access channel opportunities in a time unit; Determine 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; The method also includes: receiving third indication information, the third indication information is included in high-level signaling, the third indication information is identification information, the bit state of the third indication information is used to determine the bandwidth resources of the physical uplink control channel PUCCH for sending feedback on the contention resolution message by the first terminal device, the contention resolution message is message 4 Msg4, the first bandwidth resources and the bandwidth resources 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 system information block 1 SIB1.

2. The method according to claim 1, characterized in that The value of the first parameter is greater than 4, When M=1, the M bandwidth resources are the first bandwidth resources, the first bandwidth resources include resources of predefined N random access channel opportunities, wherein the first parameter random access channel opportunities include the N random access channel opportunities, N is a positive integer, or, When M=1, the M bandwidth resources are the first bandwidth resources, a starting resource block of the first bandwidth resource is the same as a starting resource block of a first random access channel opportunity, and the first random access channel opportunity is indicated by the first indication information, or, When M>1, each of the M bandwidth resources includes a resource corresponding to at least one random access channel opportunity.

3. The method according to claim 1, characterized in that 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 an order from small to large frequency.

4. The method according to claim 3, characterized in that Also receiving first indication information, the first indication information includes 1 bit, the first indication information indicates the index of the first random access channel opportunity in the index {0,4}, or the first indication information includes 2 bits, the first indication information indicates the index of the first random access channel opportunity in the index {1,2,3,4}, or the first indication information includes 3 bits, the first indication information indicates the index of the first random access channel opportunity in the index {0,1,2,3,4}, or the first indication information includes 3 bits, 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}, or, The first indication information is not received, and the index of the first random access channel opportunity is 0.

5. The method according to claim 1, wherein the first information is used to indicate M bandwidth resources, characterized in that: The size of each bandwidth resource in the M bandwidth resources is predefined, or, The M=2, one of the bandwidth resources includes resources of random access channel opportunities {0, 1, 2, 3}, and another of the bandwidth resources includes resources of random access channel opportunities {4, 5, 6, 7}, or, The M>1, the remaining M-1 bandwidth resources are determined according to the first candidate bandwidth resources, and the first candidate bandwidth resources are indicated by the first signaling.

6. The method according to claim 1, characterized in that Where M>1, the method further comprises: receiving second indication information, where the second indication information is used to indicate a second bandwidth resource; Sending a random access preamble in the first bandwidth resource; The message 3 in the random access process is sent in the second bandwidth resource, or the PUCCH for contention resolution message feedback is sent.

7. The method according to claim 6, characterized in that The second indication information is carried in one or more of the following information: 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 an uplink grant of each media access control random access response in a random access response message.

8. The method according to any one of claims 1 to 7, characterized in that The identification information includes 1 bit.

9. The method according to any one of claims 1 to 7, characterized in that The third indication information is carried in the SIB1.

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

11. 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 a PUCCH for contention resolution message feedback in the first bandwidth resource; When the bit state of the third indication information is the second bit state, the first terminal device sends a PUCCH for contention resolution message feedback in the second bandwidth resource.

12. The method according to claim 1, characterized in that The method further comprises: 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 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.

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

14. The method according to any one of claims 1 to 7, characterized in that The first parameter is carried in the random access channel configuration information.

15. The method according to any one of claims 1 to 7, characterized in that The first information includes system information.

16. The method according to any one of claims 1 to 7, characterized in that The first type of terminal device is a low-complexity terminal device.

17. The method according to any one of claims 1 to 7, characterized in that The bandwidth resource is a resource block RB.

18. A method for transmitting information, applied to a network device or a chip in the network device, characterized in that: include: Sending first information to a first terminal device, where the first information is used to indicate M bandwidth resources, where M is a positive integer, a size of each bandwidth resource in the M bandwidth resources is equal to or less than a maximum channel bandwidth supported by the first terminal device, and the first terminal device is a first type of terminal device; Sending a first parameter, where the first parameter is the number of frequency division multiplexed random access channel opportunities in a time unit; receiving a random access preamble from the first terminal device in a first bandwidth resource, wherein the first information and the first parameter are used to determine the first bandwidth resource among the M bandwidth resources; The method also includes: sending third indication information to the first terminal device, the third indication information is included in high-layer signaling, the third indication information is identification information, and the bit state of the third indication information is used to determine the bandwidth resources of the physical uplink control channel PUCCH for sending feedback on the contention resolution message by the first terminal device, the contention resolution message is message 4 Msg4, the first bandwidth resources and the bandwidth resources 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 system information block 1 SIB1.

19. The method according to claim 18, characterized in that The value of the first parameter is greater than 4, When M=1, the M bandwidth resources are the first bandwidth resources, the first bandwidth resources include resources of predefined N random access channel opportunities, wherein the first parameter random access channel opportunities include the N random access channel opportunities, N is a positive integer, or, When M=1, first indication information is sent, where the first indication information is used to indicate a first random access channel opportunity, a starting resource block of the first bandwidth resource is the same as a starting resource block of the first random access channel opportunity, and the M bandwidth resources are the first bandwidth resources, or, When M>1, each of the M bandwidth resources includes a resource corresponding to at least one random access channel opportunity.

20. The method according to claim 18, characterized in that 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 an order from small to large frequency.

21. The method according to claim 20, characterized in that: Also sending 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 in index {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 in index {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 in index {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 in index {0, 1, 2, 3, 4, 5, 6, 7}, or, The first indication information is not sent, and the index of the first random access channel opportunity is 0.

22. The method according to claim 18, wherein the first information is used to indicate M bandwidth resources, characterized in that: The size of each bandwidth resource in the M bandwidth resources is predefined, or, The M=2, one of the bandwidth resources includes resources of random access channel opportunities {0, 1, 2, 3}, and another of the bandwidth resources includes resources of random access channel opportunities {4, 5, 6, 7}, or, If M>1, a first signaling is sent, where the first signaling is used to indicate a first candidate bandwidth resource, and the remaining M-1 bandwidth resources are determined based on the first candidate bandwidth resource.

23. The method according to claim 18, characterized in that Where M>1, the method further comprises: Sending second indication information, where the second indication information is used to indicate a second bandwidth resource; receiving a random access preamble in the first bandwidth resource; Receive message 3 in the random access process in the second bandwidth resource, or receive PUCCH for contention resolution message feedback.

24. The method according to claim 23, characterized in that The second indication information is carried in one or more of the following information: 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 an uplink grant of each media access control random access response in a random access response message.

25. The method according to any one of claims 18 to 24, characterized in that The identification information includes 1 bit.

26. The method according to any one of claims 18 to 24, characterized in that The third indication information is carried in SIB1.

27. The method according to any one of claims 18 to 24, characterized in that The bit state of the third indication information is a first bit state or a second bit state, and the bandwidth resources of the PUCCH for sending contention resolution message feedback determined in the first bit state are different from the bandwidth resources of the PUCCH for sending contention resolution message feedback determined in the second bit state.

28. The method according to any one of claims 18 to 24, characterized in that The method comprises: When the bit state of the third indication information is the first bit state, the network device receives a PUCCH for contention resolution message feedback in the first bandwidth resource, When the bit state of the third indication information is the second bit state, the network device receives the PUCCH for contention resolution message feedback in the second bandwidth resource.

29. The method according to claim 18, characterized in that The method further comprises: The network device sends fourth indication information, and 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.

30. The method according to claim 18, characterized in that The method further comprises: If the network device sends 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; if the network device does not send the fourth indication information, the association configuration between the SSB and the random access channel opportunity is the second association configuration, or, If the network device 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 second association configuration; if the network device does not send the fourth indication information, the association configuration between the SSB and the random access channel opportunity is the first association configuration.

31. The method according to any one of claims 18 to 24, characterized in that The first parameter is carried in the random access channel configuration information.

32. The method according to any one of claims 18 to 24, characterized in that The first information includes system information.

33. The method according to any one of claims 18 to 24, characterized in that The first type of terminal device is a low-complexity terminal device.

34. The method according to any one of claims 18 to 24, characterized in that The bandwidth resource is a resource block RB.

35. A communication device, comprising a transceiver unit and a processing unit, characterized in that: The transceiver unit is configured to receive first information, where the first information is used to indicate M bandwidth resources, where M is a positive integer, the communication device is a first type of terminal device, and a size of each bandwidth resource in the M bandwidth resources is equal to or less than a maximum channel bandwidth supported by the communication device; The transceiver unit is further used to receive a first parameter, where the first parameter is the number of frequency division multiplexed random access channel opportunities within a time unit; The processing unit is configured to determine a first bandwidth resource from among the M bandwidth resources according to the first information and the first parameter; The transceiver unit is further configured to send a random access preamble in the first bandwidth resource; The transceiver unit is further used to receive third indication information, which is included in high-layer signaling. The third indication information is identification information. The bit state of the third indication information is used to determine the bandwidth resources of the physical uplink control channel PUCCH for sending feedback on the contention resolution message by the communication device. The contention resolution message is message 4 Msg4. The first bandwidth resources and the bandwidth resources of the PUCCH for sending feedback on the contention resolution message are located in an initial uplink bandwidth part initial UL BWP, and the initial UL BWP is indicated by system information block 1 SIB1.

36. The device according to claim 35, characterized in that The identification information includes 1 bit.

37. The device according to claim 35 or 36, characterized in that The third indication information is carried in SIB1.

38. The device according to claim 35 or 36, characterized in that The bit state of the third indication information is a first bit state or a second bit state, and the bandwidth resources of the PUCCH for sending contention resolution message feedback determined in the first bit state are different from the bandwidth resources of the PUCCH for sending contention resolution message feedback determined in the second bit state.

39. The device according to claim 35 or 36, characterized in that When the bit state of the third indication information is the first bit state, the communication device sends a PUCCH for contention resolution message feedback in the first bandwidth resource; When the bit state of the third indication information is the second bit state, the communication device sends a PUCCH for contention resolution message feedback in the second bandwidth resource.

40. A communication device, comprising a transceiver unit and a processing unit, characterized in that: The transceiver unit is used to send first information to a first terminal device, where the first information is used to indicate M bandwidth resources, where M is a positive integer, a size of each bandwidth resource in the M bandwidth resources is equal to or less than a maximum channel bandwidth supported by the first terminal device, and the first terminal device is a first type of terminal device; The transceiver unit is further used to send a first parameter, where the first parameter is the number of frequency division multiplexed random access channel opportunities in one time unit; The transceiver unit is further used to receive a random access preamble from the first terminal device in a first bandwidth resource, and the first information and the first parameter are used to determine the first bandwidth resource in the M bandwidth resources; The transceiver unit is also used to send third indication information to the first terminal device, the third indication information is included in high-layer signaling, the third indication information is identification information, and the bit state of the third indication information is used to determine the bandwidth resources of the physical uplink control channel PUCCH for sending feedback on the contention resolution message by the first terminal device, the contention resolution message is message 4 Msg4, the first bandwidth resources and the bandwidth resources 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 system information block 1 SIB1.

41. The device according to claim 40, characterized in that The identification information includes 1 bit.

42. The device according to claim 40 or 41, characterized in that The third indication information is carried in SIB1.

43. The device according to claim 40 or 41, characterized in that The bit state of the third indication information is a first bit state or a second bit state, and the bandwidth resources of the PUCCH for sending contention resolution message feedback determined in the first bit state are different from the bandwidth resources of the PUCCH for sending contention resolution message feedback determined in the second bit state.

44. The device according to claim 40 or 41, characterized in that When the bit state of the third indication information is the first bit state, the first terminal device sends a PUCCH for contention resolution message feedback in the first bandwidth resource; When the bit state of the third indication information is the second bit state, the first terminal device sends a PUCCH for contention resolution message feedback in the second bandwidth resource.

45. A communication device, comprising a processor, the processor being connected to a memory, the memory being used to store a computer program, characterized in that: The processor is configured to execute the computer program stored in the memory, so that the apparatus performs the method according to any one of claims 1 to 17.

46. ​​A communication device, comprising a processor, the processor being connected to a memory, the memory being used to store a computer program, characterized in that: The processor is configured to execute the computer program stored in the memory, so that the apparatus performs the method according to any one of claims 18 to 34.

47. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store a computer program, and when the computer program is run on a computer, the computer is caused to execute the method according to any one of claims 1 to 17, or the computer is caused to execute the method according to any one of claims 18 to 34.

48. A chip, characterized in that: The method comprises a processor and a communication interface, wherein the processor is used to read instructions to execute the method according to any one of claims 1 to 17, or to execute the method according to any one of claims 18 to 34.

49. A communication system, characterized in that: include: A communication device for executing the method according to any one of claims 1 to 17, and / or a communication device for executing the method according to any one of claims 18 to 34.

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