A method and apparatus for transmitting information

Abstract

The application provides a method and device for transmitting information, the method comprising: a first terminal device determining a first resource for transmitting information, so that a total frequency range corresponding to the first resource and a first control resource set in a frequency domain is less than or equal to a maximum channel bandwidth supported by the first terminal device; and the first terminal device transmitting information in the first resource, thereby solving the problem of frequent switching of working frequencies of a communication device in the process of accessing a network, effectively saving the power consumption of the communication device, and improving the flexibility of information transmission.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication. In particular, the present application relates to a method and apparatus for transmitting information. BACKGROUND

[0002] For a communication device without the ability to simultaneously receive downlink information and transmit uplink information, the working frequency for receiving downlink information is different from the working frequency for transmitting uplink information. When the service of the communication device switches from uplink to downlink or from downlink to uplink, the center frequency point needs to be switched accordingly. The frequent switching of the working frequency of the communication device causes huge power consumption of the communication device. Moreover, in the case where the number of devices participating in communication is large, resource congestion may occur. SUMMARY

[0003] The present application provides a method and apparatus for transmitting information, which can solve the problem of frequent switching of the working frequency of the communication device in the process of accessing the network device, thereby saving the power consumption of the communication device.

[0004] In a first aspect, a method for transmitting information is provided. The method can include determining a location of a first control resource set, determining a location of a first bandwidth according to the location of the first control resource set and a first offset, wherein a size of the first bandwidth is equal to or smaller than a maximum channel bandwidth supported by a first terminal device, the first offset is N resource blocks (RBs), the first offset is an interval between a first location of the first control resource set and a second location of the first bandwidth, and the N is a predefined integer or a value indicated by first signaling. The method can also include receiving downlink information within the first bandwidth and / or transmitting uplink information within the first bandwidth.

[0005] The scheme determines the location of the first bandwidth according to the location of the first control resource set and the first offset, i.e., the location of the first bandwidth is related to the location of the first control resource set, thereby avoiding the problem of frequent switching of the terminal device frequency and reducing the power consumption of the terminal device.

[0006] In combination with the first aspect, in some implementations of the first aspect, frequency resources of the first control resource set and frequency resources of the first bandwidth correspond to a total frequency range in frequency, and the total frequency range is less than or equal to a maximum bandwidth supported by the terminal device.

[0007] It should be understood that the frequency resources described above can also be understood as frequency domain resources.

[0008] In some implementations of the first aspect, the position of the first bandwidth is determined according to the position of the first control resource set and M offsets, the M offsets including the first offset, the M offsets corresponding to the M candidate bandwidths; or the position of the first bandwidth is determined according to the position of the first control resource set and Y offsets, the M offsets including the first offset, the Y offsets corresponding to the M candidate bandwidths, where Y is less than M, and the M is a positive integer greater than 1, and the Y is a positive integer.

[0009] It should be understood that the first signaling can directly indicate the first bandwidth, or the first signaling is used to indicate the first offset, or the first signaling is used to indicate the position of the first control resource set and the first offset, or the first signaling is used to indicate the positions of the plurality of candidate bandwidths, or the first signaling is used to indicate the position of the first control resource set and a plurality of offsets, the number of offsets can be less than the number of candidate bandwidths, that is, one offset is used for different bandwidths, or the number of offsets can be the same as the number of candidate bandwidths, that is, one-to-one correspondence between bandwidth and offset.

[0010] It should be understood that the above indication can also be predefined.

[0011] The technical solution determines the position of the first bandwidth through the positions of the plurality of candidate bandwidths, and provides flexibility in determining the position of the first bandwidth.

[0012] In some implementations of the first aspect, the M candidate bandwidths include at least two second bandwidths, the at least two second bandwidths having the same size and different N, or the M candidate bandwidths include at least two third bandwidths, the at least two third bandwidths having different sizes and the same N.

[0013] It should be understood that the plurality of candidate bandwidths can include at least two bandwidths with different offsets, or at least two bandwidths with different sizes.

[0014] The scheme determines that the plurality of candidate bandwidths are not completely overlapped, and the sizes of the bandwidths with the same position can be different, and the positions of the bandwidths with the same size can be different, thereby expanding the selection range of the first bandwidth.

[0015] In some implementations of the first aspect, the value of M can be indicated by the second signaling, the values of the M offsets can be indicated by the first signaling, or the value of at least one of the M offsets can be indicated by the first signaling, the value of at least one of the M offsets can be predefined, or the M offsets can be predefined, and the second signaling can also indicate the sizes of the M candidate bandwidths.

[0016] The value of M and the offsets can be indicated or predefined.

[0017] In some implementations of the first aspect, the third signaling can be received to indicate the first bandwidth from the M candidate bandwidths, or the first terminal device can determine the first bandwidth from the M candidate bandwidths according to a predefined rule without other signaling. The location of the first bandwidth can be determined according to the location of the first control resource set and the value of N corresponding to the first bandwidth, or the location of the first bandwidth can be determined according to the location of the first control resource set and the value of N corresponding to the first bandwidth.

[0018] In some implementations of the first aspect, the first offset is related to at least one of the size of the first control resource set, the size of the first bandwidth, and the maximum channel bandwidth supported by the first terminal device.

[0019] In some implementations of the first aspect, the value of the first offset can be one of the following values: 0, X-L, (X-L) / 2, -L, X, where L is the number of RBs included in the first bandwidth, and X is the number of RBs included in the first control resource set.

[0020] It should be understood that the value range of the first offset can be represented in the form of a set, for example, {0, X-L} or {0, X-L, (X-L) / 2} or {0, X-L, (X-L) / 2, -L} or {0, X-L, (X-L) / 2, -L, X}.

[0021] It should be understood that the value of the first offset can also be a value that can be taken other than the above-mentioned values, for example, for different subcarrier spacings, the number of RBs of the same bandwidth corresponds to different values.

[0022] In some implementations of the first aspect, the downlink data and the downlink control information are received in the first bandwidth when a radio resource control (RRC) connection is not established, and the first bandwidth is an initial downlink bandwidth part (BWP).

[0023] The scheme proposes receiving the downlink control information and the downlink data information in the initial downlink BWP, or receiving the downlink control information in the first control resource set and receiving the downlink data in the part of the initial downlink BWP that does not overlap with the first control resource set, which solves the problem of resource congestion and improves the flexibility of information transmission.

[0024] In some implementations of the first aspect, the downlink control information is received in the first control resource set when an RRC connection is not established, the downlink control information includes a frequency domain resource allocation field, a bit size of the frequency domain resource allocation field is ceil(L(L+1) / 2) bits, ceil is a ceiling function, L is a number of RBs included in the first bandwidth, and the first information is received in the first bandwidth, where the first information can be one or more of system information, a random access response message, a contention resolution message, and a paging message.

[0025] The scheme gives the allocation mode of frequency resources and gives several possibilities of the information received in the first bandwidth, which further improves the flexibility of information transmission.

[0026] In some implementations of the first aspect, each of the M candidate bandwidths includes the first control resource set.

[0027] In the second aspect, a method for information transmission is provided, which can include: configuring a first control resource set, the first control resource set being used for a first terminal device to receive downlink information; and sending downlink information to the first terminal device in a first bandwidth and / or receiving uplink information from the first terminal device in the first bandwidth, the first bandwidth being related to a position of the first control resource set and a first offset, a size of the first bandwidth being equal to or smaller than a maximum channel bandwidth supported by the first terminal device, the first offset being N resource blocks (RBs), the first offset being an interval between a first position of the first control resource set and a second position of the first bandwidth, and the N being an integer.

[0028] The scheme solves the problem of frequent switching of working frequencies in the process of the first terminal device accessing the network device by configuring the first control resource set and the first bandwidth, and transmits information in the first bandwidth, thereby saving the power consumption of the communication device.

[0029] In some implementations of the second aspect, the total frequency domain range corresponding in the frequency domain between the frequency domain resources of the first control resource set and the frequency resources of the first bandwidth is less than or equal to the maximum bandwidth supported by the terminal device.

[0030] It should be understood that the above frequency domain resources can also be understood as frequency resources.

[0031] In some implementations of the second aspect, the first terminal device can be sent first signaling, and the first signaling is used to indicate the first offset.

[0032] In some implementations of the second aspect, the first signaling can be used to indicate M offsets, the M offsets include the first offset, or the first signaling can be used to indicate at least one offset in the M offsets, the M offsets correspond to M candidate bandwidths, or the first signaling is used to indicate Y offsets, the Y offsets include the first offset, or the first signaling is used to indicate at least one offset in the Y offsets, the Y offsets correspond to the M candidate bandwidths.

[0033] In some implementations of the second aspect, the M candidate bandwidths can include at least two second bandwidths, the two second bandwidths have the same size and different N, or the M candidate bandwidths include at least two third bandwidths, the two third bandwidths have different sizes and the same N.

[0034] It should be understood that the plurality of candidate bandwidths can include at least two bandwidths with different offsets, and can also include at least two bandwidths with different sizes.

[0035] It should be understood that the first signaling can directly indicate the first bandwidth, or the first signaling is used to indicate the first offset, can also indicate the position of the first control resource set and the first offset, can also indicate the position of the plurality of candidate bandwidths, can also indicate the position of the first control resource set and the plurality of offsets, the number of offsets can be less than the number of candidate bandwidths, that is, one offset is used for different bandwidths, and the number of offsets can also be the same as the number of candidate bandwidths, that is, one-to-one correspondence between bandwidth and offset.

[0036] It should be understood that the above indication contents can also be predefined.

[0037] The technical scheme determines the first bandwidth position through multiple candidate bandwidth positions, provides flexibility in determining the first bandwidth position, provides multiple candidate bandwidths which are not completely overlapped, and the bandwidth size with the same position can be different, and the bandwidth position with the same size can be different, and expands the selection range of the first bandwidth.

[0038] In combination with the second aspect, in some implementations of the second aspect, second signaling can be sent, which can be used to indicate the value of M. The second signaling can also indicate the size of the M candidate bandwidths.

[0039] It should be understood that the value of M or F can be indicated by signaling or predefined.

[0040] In combination with the second aspect, in some implementations of the second aspect, third signaling can also be sent, which can be used to indicate the first bandwidth in the M candidate bandwidths.

[0041] In combination with the second aspect, in some implementations of the second aspect, the first offset is related to at least one of the size of the first control resource set, the size of the first bandwidth, and the maximum channel bandwidth supported by the first terminal device.

[0042] In combination with the second aspect, in some implementations of the second aspect, the value of the first offset can be one of the following values: 0, X-L, (X-L) / 2, -L, X, wherein L is the number of RBs contained in the first bandwidth, and X is the number of RBs contained in the first control resource set.

[0043] It should be understood that the value range of the first offset can be embodied in the form of a set, for example, {0, X-L} or {0, X-L, (X-L) / 2} or {0, X-L, (X-L) / 2, -L} or {0, X-L, (X-L) / 2, -L, X}.

[0044] It should be understood that the value of the first offset can also be a value that can be taken in addition to the above-mentioned numerical values, for example, corresponding to different subcarrier spacings, the number of RBs of the same bandwidth corresponds to different values.

[0045] The scheme provides a reference amount for determining the first offset and specific partial values, and improves the simplicity of determining the first bandwidth.

[0046] In some implementations of the second aspect, when no radio resource control (RRC) connection is established, the downlink control information can be transmitted in the first control resource set, and the first information can be one or more of system information, a random access response message, a contention resolution message, and a paging message.

[0047] The scheme proposes receiving the downlink control information and the downlink data information in the initial downlink BWP, or receiving the downlink control information in the first control resource set and receiving the downlink data in the part of the initial downlink BWP that does not overlap the first control resource set, which solves the problem of resource congestion and improves the flexibility of information transmission.

[0048] In some implementations of the second aspect, when no RRC connection is established, the downlink control information can be transmitted in the first control resource set, and the downlink control information can include a frequency domain resource allocation field, the bit size of the frequency domain resource allocation field being ceil(L(L+1) / 2) bits, where ceil is the ceiling function, and L is the number of RBs included in the first bandwidth. The first information can be one or more of system information, a random access response message, a contention resolution message, and a paging message.

[0049] The scheme gives the allocation mode of frequency resources and gives several possibilities of the information received in the first bandwidth, further improving the flexibility of information transmission.

[0050] In some implementations of the second aspect, each of the M candidate bandwidths includes the first control resource set.

[0051] In a third aspect, a communication device is provided, which can include a processing unit configured to determine a location of a first control resource set, determine a location of a first bandwidth according to the location of the first control resource set and a first offset, where the size of the first bandwidth is equal to or smaller than a maximum channel bandwidth supported by a first terminal device, the first offset is an interval between a first location of the first control resource set and a second location of the first bandwidth, and the first offset is N resource blocks (RBs), where N is a predefined integer or a value indicated by first signaling.

[0052] The transceiver is configured to receive downlink information in the first bandwidth and / or transmit uplink information in the first bandwidth.

[0053] The device supports determining the location of the first bandwidth through the location of the first control resource set and the first offset, that is, the location of the first bandwidth is related to the location of the first control resource set, which avoids the problem of frequent switching of working frequencies in the process of the first terminal device accessing the network device, and is conducive to reducing the power consumption of the terminal device.

[0054] In combination with the third aspect, in some implementations of the third aspect, a total frequency domain range corresponding to the frequency domain resource of the first control resource set and the frequency resource of the first bandwidth in the frequency domain is less than or equal to a maximum bandwidth supported by the terminal device.

[0055] It should be understood that the above-mentioned frequency domain resource can also be understood as a frequency resource.

[0056] In combination with the third aspect, in some implementations of the third aspect, the processing unit is specifically configured to determine the locations of M candidate bandwidths according to the location of the first control resource set and M offsets, the M offsets including the first offset, the M offsets corresponding to the M candidate bandwidths; determine the location of the first bandwidth from the locations of the M candidate bandwidths; or determine the locations of M candidate bandwidths according to the location of the first control resource set and Y offsets, the M offsets including the first offset, the Y offsets corresponding to the M candidate bandwidths, wherein Y is less than M; determine the location of the first bandwidth from the locations of the M candidate bandwidths, wherein the M is a positive integer greater than 1, and the Y is a positive integer.

[0057] It should be understood that the first signaling can directly indicate the first bandwidth, or the first signaling is used to indicate the first offset, or the location of the first control resource set and the first offset, or the locations of a plurality of candidate bandwidths, or the location of the first control resource set and a plurality of offsets, the number of offsets can be less than the number of candidate bandwidths, that is, one offset is used for different bandwidths, or the number of offsets can be the same as the number of candidate bandwidths, that is, one-to-one correspondence between bandwidths and offsets.

[0058] It should be understood that the above-mentioned indication content can also be predefined.

[0059] The device supports determining the location of the first bandwidth through the locations of a plurality of candidate bandwidths, which provides flexibility in determining the location of the first bandwidth.

[0060] In some implementations of the third aspect, the M candidate bandwidths include at least two second bandwidths, the two second bandwidths have the same size and different N, or the M candidate bandwidths include at least two third bandwidths, the two third bandwidths have different sizes and the same N.

[0061] It should be understood that the multiple candidate bandwidths can include at least two bandwidths with different offsets, and can also include at least two bandwidths with different sizes.

[0062] The device supports multiple candidate bandwidths that are not completely overlapped, and the sizes of the bandwidths with the same position can be different, and the positions of the bandwidths with the same size can be different, thereby expanding the selection range of the first bandwidth.

[0063] In some implementations of the third aspect, the transceiver is specifically configured to receive first signaling, the first signaling being used to indicate the values of the M offsets, or the first signaling being used to indicate the value of at least one of the M offsets; and receive second signaling, the second signaling being used to indicate the value of M.

[0064] It should be understood that the content indicated by the signaling can also be predefined.

[0065] In some implementations of the third aspect, the transceiver is further configured to receive third signaling, the third signaling being used to indicate the first bandwidth in the M candidate bandwidths, and the processing unit determines the first bandwidth according to the third signaling; or, without other signaling, the processing unit determines the first bandwidth from the M candidate bandwidths according to a predefined rule.

[0066] In some implementations of the third aspect, the processing unit is further configured to determine the first offset according to at least one of the size of the first control resource set, the size of the first bandwidth, and the maximum channel bandwidth supported by the first terminal device.

[0067] In some implementations of the third aspect, the first offset has a value selected from one of the following values: 0, X-L, (X-L) / 2, -L, X, where L is the number of RBs included in the first bandwidth, and X is the number of RBs included in the first control resource set.

[0068] It should be understood that the value range of the first offset can be embodied in the form of a set, for example, {0, X-L} or {0, X-L, (X-L) / 2} or {0, X-L, (X-L) / 2, -L} or {0, X-L, (X-L) / 2, -L, X}.

[0069] It should be understood that the first offset can also take values other than the above-mentioned values, such as, for different subcarrier spacings, the same number of RBs corresponding to different bandwidths.

[0070] With reference to the third aspect, in some implementations of the third aspect, the transceiver is specifically configured to receive downlink data and downlink control information in the first bandwidth when no radio resource control (RRC) connection is established, where the first bandwidth is an initial downlink BWP; or receive downlink control information in the first control resource set and receive first information in a second bandwidth when no RRC connection is established, where the second bandwidth includes RBs other than the RBs included in the first control resource set, and the first information is one or more of system information, a random access response message, a contention resolution message, and a paging message.

[0071] The apparatus supports receiving both downlink control information and downlink data information in the initial downlink BWP, or receiving downlink control information in the first control resource set and receiving downlink data in a part of the initial downlink BWP that does not overlap the first control resource set, thereby solving the problem of resource congestion and improving the flexibility of information transmission.

[0072] With reference to the third aspect, in some implementations of the third aspect, the transceiver is specifically configured to receive downlink control information in the first control resource set when no RRC connection is established, where the downlink control information includes a frequency domain resource allocation field, and the bit size of the frequency domain resource allocation field is ceil(L(L+1) / 2) bits, where ceil is a ceiling function, and L is the number of RBs included in the first bandwidth; and receive first information in the first bandwidth, where the first information is one or more of system information, a random access response message, a contention resolution message, and a paging message.

[0073] The apparatus supports the allocation mode of frequency resources and gives several possibilities of information received in the first bandwidth, thereby further improving the flexibility of information transmission.

[0074] With reference to the third aspect, in some implementations of the third aspect, each of the M candidate bandwidths includes the first control resource set.

[0075] In a fourth aspect, a communication apparatus is provided, which can include: a processing unit configured to configure a first control resource set, the first control resource set being used for a first terminal device to receive downlink information; and a transceiver configured to transmit downlink information to the first terminal device within a first bandwidth and / or receive uplink information from the first terminal device within the first bandwidth, the first bandwidth being related to a location of the first control resource set and a first offset, wherein a size of the first bandwidth is equal to or smaller than a maximum channel bandwidth supported by the first terminal device, and the first offset is N resource blocks (RBs), the first offset being an interval between a first location of the first control resource set and a second location of the first bandwidth, and the N is an integer.

[0076] With reference to the fourth aspect, in some implementations of the fourth aspect, before the transceiver transmits the downlink information within the first bandwidth and / or receives the uplink information within the first bandwidth, the transceiver is further configured to transmit first signaling to the first terminal device, the first signaling being used to indicate the first offset.

[0077] The apparatus supports configuring the first control resource set and the first bandwidth, and transmitting information within the first bandwidth, which solves the problem of frequent switching of working frequencies in the process of the first terminal device accessing the network device, and saves the power consumption of the communication device.

[0078] With reference to the fourth aspect, in some implementations of the fourth aspect, a total frequency domain range corresponding to frequency domain resources of the first control resource set and frequency resources of the first bandwidth in the frequency domain is less than or equal to a maximum bandwidth supported by the terminal device.

[0079] It should be understood that the above-mentioned frequency domain resources can also be understood as frequency resources.

[0080] With reference to the fourth aspect, in some implementations of the fourth aspect, the first signaling is used to indicate M offsets, the M offsets including the first offset, or the first signaling is used to indicate at least one offset of the M offsets, the M offsets corresponding to M candidate bandwidths, or the first signaling is used to indicate Y offsets, the Y offsets including the first offset, or the first signaling is used to indicate at least one offset of the Y offsets, the Y offsets corresponding to the M candidate bandwidths, wherein the M is a positive integer greater than 1, and the Y is a positive integer.

[0081] With reference to the fourth aspect, in some implementations of the fourth aspect, the M candidate bandwidths can include at least two second bandwidths, the two second bandwidths having a same size and different Ns, or the M candidate bandwidths include at least two third bandwidths, the two third bandwidths having different sizes and a same N.

[0082] It should be understood that the plurality of candidate bandwidths can include at least two bandwidths with different offsets, and can also include at least two bandwidths with different sizes.

[0083] It should be understood that the first signaling can directly indicate the first bandwidth, or the first signaling is used to indicate the first offset, or the first signaling can simultaneously indicate the location of the first control resource set and the first offset, or the first signaling can indicate the location of the plurality of candidate bandwidths, or the first signaling can indicate the location of the first control resource set and a plurality of offsets, the number of offsets can be less than the number of candidate bandwidths, that is, one offset is used for different bandwidths, or the number of offsets can be the same as the number of candidate bandwidths, that is, one-to-one correspondence between bandwidth and offset.

[0084] It should be understood that the content of the indication can also be predefined.

[0085] In combination with the fourth aspect, in some implementations of the fourth aspect, the M candidate bandwidths include at least two second bandwidths, the two second bandwidths have the same size and different N, or the M candidate bandwidths include at least two third bandwidths, the two third bandwidths have different sizes and the same N.

[0086] The device supports determining the location of the first bandwidth through the plurality of candidate bandwidths, provides flexibility in determining the location of the first bandwidth, provides that the plurality of candidate bandwidths are not completely overlapped, and the size of the bandwidths with the same location can be different, the location of the bandwidths with the same size can be different, and the selection range of the first bandwidth is expanded.

[0087] In combination with the fourth aspect, in some implementations of the fourth aspect, the transceiver is further configured to send second signaling, and the second signaling is used to indicate the value of the M or the F.

[0088] In combination with the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to send third signaling, and the third signaling is used to indicate the first bandwidth in the M candidate bandwidths.

[0089] In combination with the fourth aspect, in some implementations of the fourth aspect, the processing unit can be determined according to at least one of the size of the first control resource set, the size of the first bandwidth, and the maximum channel bandwidth supported by the first terminal device.

[0090] In combination with the fourth aspect, in some implementations of the fourth aspect, the first offset has a value of one of the following values: 0, X-L, (X-L) / 2, -L, X, wherein L is the number of RBs contained in the first bandwidth, and X is the number of RBs contained in the first control resource set.

[0091] It should be understood that the value range of the first offset can be embodied in the form of a set, for example, {0, X-L} or {0, X-L, (X-L) / 2} or {0, X-L, (X-L) / 2, -L} or {0, X-L, (X-L) / 2, -L, X}.

[0092] It should be understood that the value of the first offset can also be a value that can be taken other than the above-mentioned values, such as, for different subcarrier spacings, the same number of RBs corresponding to different bandwidths.

[0093] In combination with the fourth aspect, in some implementations of the fourth aspect, the transceiver is specifically configured to transmit downlink data and downlink control information in the first bandwidth when a radio resource control (RRC) connection is not established, where the first bandwidth is an initial downlink BWP; or the transceiver is specifically configured to transmit downlink control information in the first control resource set and receive first information in a second bandwidth when the RRC connection is not established, where the second bandwidth includes RBs other than the RBs included in the first control resource set, and the first information can be one or more of system information, a random access response message, a contention resolution message, and a paging message.

[0094] The apparatus supports receiving both downlink control information and downlink data information in the initial downlink BWP, or receiving downlink control information in the first control resource set and receiving downlink data in a part of the initial downlink BWP that does not overlap the first control resource set, thereby solving the problem of resource congestion and improving the flexibility of information transmission.

[0095] In combination with the fourth aspect, in some implementations of the fourth aspect, the transceiver is specifically configured to transmit downlink control information in the first control resource set when the RRC connection is not established, where the downlink control information includes a frequency domain resource allocation field, and the bit size of the frequency domain resource allocation field is ceil(L(L+1) / 2) bits, where ceil is a ceiling function, and L is the number of RBs included in the first bandwidth; and the transceiver is specifically configured to transmit first information in the first bandwidth, where the first information can be one or more of system information, a random access response message, a contention resolution message, and a paging message.

[0096] The apparatus supports the allocation mode of frequency resources and gives several possibilities of information received in the first bandwidth, thereby further improving the flexibility of information transmission.

[0097] In combination with the fourth aspect, in some implementations of the fourth aspect, each of the M candidate bandwidths includes the first control resource set.

[0098] In a fifth aspect, a method for transmitting information is provided. The method can include: determining, by a first terminal device, a first resource according to a first control resource set; and transmitting and / or receiving information by the first terminal device via the first control resource set and the first resource, wherein a frequency range corresponding to the first control resource set and the first resource in frequency is less than or equal to a maximum bandwidth supported by the first terminal device, and the first terminal device can be a first type of terminal device.

[0099] The scheme determines the position of the first bandwidth via the position of the first control resource set, and the frequency range of the first control resource set and the first resource is less than the maximum bandwidth supported by the first terminal device, so that the information is transmitted and / or received via the first control resource set and the first resource, thereby solving the problem of frequent switching of frequency points in the random access process and saving the power consumption of the communication device.

[0100] With reference to the fifth aspect, in some implementations of the fifth aspect, the first terminal device can determine the position of the first resource according to the position of the first control resource set and a first offset, the first offset being an offset of the position of the first resource relative to the position of the first control resource set; or the first terminal device can determine the position of the first resource according to the position of the first control resource set and a first association relationship, the first association relationship including an association relationship between the position of the first control resource set and the position of the first resource.

[0101] It should be understood that the first terminal device can determine the position of the first resource directly according to the position of the first control resource set and the first offset, or according to the position of the first control resource set and the first association relationship.

[0102] With reference to the fifth aspect, in some implementations of the fifth aspect, the first offset is N RBs, N being an integer.

[0103] With reference to the fifth aspect, in some implementations of the fifth aspect, the N can be one of the following values: 0, X-L, (X-L) / 2, -L, X, wherein L is the number of RBs included in the first resource, and X is the number of RBs included in the first control resource set.

[0104] With reference to the fifth aspect, in some implementations of the fifth aspect, the first terminal device determines a plurality of candidate resources according to the first control resource set, the plurality of candidate resources including the first resource, the plurality of candidate resources including at least two candidate resources, a first candidate resource and a second candidate resource being of the same size and different first offsets, or the first candidate resource and the second candidate resource being of different sizes and the same first offset.

[0105] It should be understood that the plurality of candidate bandwidths can include at least two bandwidths with different offsets, and can also include at least two bandwidths with different sizes.

[0106] The technical solution determines the first resource through the plurality of candidate resources, provides flexibility in determining the first resource, provides that the plurality of candidate resources are not completely overlapped, and the resource size at the same location can be different, and expands the selection range of the first resource.

[0107] In combination with the fifth aspect, in some implementations of the fifth aspect, the location of the first control resource set and the first offset, or the location of the first control resource set and the first association relationship are indicated by signaling, or are predefined.

[0108] In combination with the fifth aspect, in some implementations of the fifth aspect, the first terminal device can receive control information through the first control resource set; and the first terminal device can receive data through the first resource.

[0109] In combination with the fifth aspect, in some implementations of the fifth aspect, the first terminal device receives control information through the first control resource set; and the first terminal device receives data through the first resource, and the RBs for receiving data in the first resource are different from the RBs included in the first control resource set.

[0110] The scheme proposes to receive downlink control information in the first control resource set, receive downlink data in the first resource, or receive downlink control information in the first control resource set and receive downlink data in the part of the first resource that does not overlap with the first control resource set, thereby solving the problem of resource congestion and improving the flexibility of information transmission.

[0111] The sixth aspect provides a method for transmitting information, which can include: a network device can send information to a first terminal device through a first control resource and a first resource and / or receive information from the first terminal device, wherein a frequency range corresponding to the first control resource set and the first resource in the frequency domain is less than or equal to a maximum bandwidth supported by the first terminal device, and the first resource is determined according to the first control resource set; and the first terminal device can be a first type terminal device.

[0112] The scheme configures the first control resource set and the first bandwidth, the total frequency domain range corresponding to the frequency domain resources of the first control resource set and the frequency domain resources of the first resource in the frequency domain is less than the maximum bandwidth supported by the first terminal device, and transmits and / or receives information through the first control resource and the first resource, thereby solving the problem of frequent switching of working frequencies in the process of the first terminal device accessing the network device, and saving the power consumption of the communication device.

[0113] In some implementations of the sixth aspect, the network device can send, to the first terminal device, first signaling indicating a location of the first control resource set and a first offset, the first offset being an offset of the location of the first resource relative to the location of the first control resource set, the first signaling can also indicate a location of the first control resource set and a first association relationship, the first association relationship including an association relationship between the location of the first control resource set and the location of the first resource,

[0114] It should be understood that the first offset can be expressed in N RBs. N can take the following values: 0, X-L, (X-L) / 2, -L, X. Wherein, L is the number of RBs included in the first resource, and X is the number of RBs included in the first control resource set.

[0115] It should be understood that the location of the first control resource set, the first offset, and the first association relationship can also be predefined.

[0116] It should be understood that the value of N is not limited to the values listed above. The number of RBs can also change corresponding to different subcarrier spacings.

[0117] In some implementations of the sixth aspect, the network device can indicate multiple candidate resources to the first terminal device, and the multiple candidate resources include the first resource.

[0118] It should be understood that the multiple candidate resources can include at least two candidate resources, the first candidate resource and the second candidate resource have the same size and different first offsets, or the first candidate resource and the second candidate resource have different sizes and the same first offset.

[0119] It should be understood that the multiple candidate resources can include at least two candidate resources with different offsets, or at least two candidate resources with different sizes.

[0120] The technical solution determines the first resource through multiple candidate resources, provides flexibility in determining the first resource, provides that the multiple candidate resources are not completely overlapped, and that the resources with the same location can have different sizes, and the bandwidths with the same size can have different locations, thereby expanding the selection range of the first resource.

[0121] In some implementations of the sixth aspect, the network device can send control information through the first control resource set, and the network device can send data through the first resource.

[0122] In a sixth aspect, in some implementations of the sixth aspect, the network device transmits control information through the first control resource set; and the network device transmits data through the first resource, wherein the RBs in which the data is received and the RBs included in the first control resource set are different.

[0123] The scheme proposes transmitting downlink control information through the first control resource set, transmitting downlink data through the first resource, or transmitting downlink control information through the first control resource set and transmitting downlink data through the part of the first resource that does not overlap with the first control resource set, thereby solving the problem of resource congestion and improving the flexibility of information transmission.

[0124] In a seventh aspect, a method for information transmission is provided. The method can include: a first terminal device transmitting first uplink information in a first uplink bandwidth; the first terminal device receiving first downlink information in a first downlink bandwidth, wherein the transmission of the first uplink information immediately precedes the reception of the first downlink information; the last time unit in which the first uplink information is transmitted is time unit n1, the starting time unit in which the first downlink information is monitored is time unit m1, the minimum interval between the time unit n1 and the time unit m1 is k time units, k is greater than w, w is the number of minimum time units between the last time unit n2 in which second uplink information is transmitted and the starting time unit m2 in which second downlink information is monitored, the transmission of the second uplink information immediately precedes the reception of the second downlink information, m1, m2, n1, n2, k, and w are positive integers, the first terminal device is a first type terminal device, and the second terminal device is a second type terminal device.

[0125] The scheme increases the time interval between the reception of downlink information and the transmission of uplink information by the first terminal device, improves the success rate of information transmission when frequency hopping, further improves the success rate of the random access procedure of the first terminal device, and avoids power consumption caused by random access failure of the communication device.

[0126] In combination with the seventh aspect, in some implementations of the seventh aspect, the first uplink information includes a random access sequence, the first downlink information includes a random access response message, w is 1, and k is greater than 1.

[0127] In combination with the seventh aspect, in some implementations of the seventh aspect, k is 3 time units, or k is the number of time units corresponding to a first time interval, or k is the number of time units corresponding to the first time interval and the first time interval includes q time units, or k is the sum of the number of time units corresponding to the first time interval and q time units.

[0128] In some implementations of the seventh aspect, in combination with the seventh aspect, the first uplink information includes uplink data scheduled by an uplink grant carried in a random access response message, the first downlink information includes a contention resolution message, w is 0, and k is greater than 0.

[0129] In some implementations of the seventh aspect, in combination with the seventh aspect, k is 3 time units, or k is a number of time units corresponding to the first time interval, or k is a number of time units corresponding to the first time interval and q time units are included in the first time interval, or k is a sum of a number of time units corresponding to the first time interval and q time units.

[0130] The scheme gives the specific message type of transmission, and gives the uplink and downlink switching time interval when transmitting the message type, which can effectively improve the success rate of information transmission.

[0131] It should be understood that k can be a certain time interval value, such as 140 microseconds, or the number of time units corresponding to 140 microseconds, such as the number of symbols, or a specific time interval value and the number of corresponding time units, such as 80 microseconds + 2 symbols, or the sum of the number of time units, such as 2 symbols + 2 slots.

[0132] In some implementations of the seventh aspect, in combination with the seventh aspect, the first time interval can be predefined, or the first time interval can be reported by the capability of the terminal device, wherein the first time interval has the same value as an element in a third set; the third set includes at least one value in {35 microseconds, 140 microseconds, 210 microseconds, 300 microseconds, 500 microseconds}, or the third set includes at least one value in {a number of symbols corresponding to 35 microseconds, a number of symbols corresponding to 140 microseconds, a number of symbols corresponding to 210 microseconds, a number of symbols corresponding to 300 microseconds, a number of symbols corresponding to 500 microseconds}.

[0133] In an eighth aspect, a method for transmitting information is provided. The method can include: receiving, by a first terminal device, second downlink information in a first downlink bandwidth; transmitting, by the first terminal device, second uplink information in a first uplink bandwidth, the receiving of the second downlink information immediately preceding the transmitting of the first uplink information, a last time unit of the second downlink information monitored by the first terminal device being time unit s1, a start time unit of the second uplink information transmitted by the first terminal device being time unit t1, a minimum interval between the time unit s1 and the time unit t1 being r time units, r being greater than p, p being a minimum number of time units between a last time unit s2 of the second downlink information monitored by a second terminal device and a start time unit t2 of the second uplink information transmitted by the second terminal device, the receiving of the second downlink information immediately preceding the transmitting of the second uplink information, s1, s2, t1, t2, r, and p being positive integers, the first terminal device being a first type of terminal device, and the second terminal device being a second type of terminal device.

[0134] The scheme increases the time interval between the receiving of the downlink information and the transmitting of the uplink information by the first terminal device, improves the success rate of the information transmission during frequency switching, further improves the success rate of the random access procedure of the first terminal device, and avoids the power consumption of the communication device caused by the failure of the random access.

[0135] In combination with the eighth aspect, in some implementations of the eighth aspect, the second downlink information includes an uplink grant carried in a random access response message, the second uplink information includes uplink data scheduled by the uplink grant carried in the random access response message, p is a sum of a number of time units corresponding to 0.5 milliseconds and N1 time units and N2 time units, r is greater than p, N1 is a processing time of the second terminal device for processing the downlink information, and N2 is a time of the second terminal device for processing the uplink information.

[0136] In combination with the eighth aspect, in some implementations of the eighth aspect, r is increased by 2 time units than p, or r is increased by a number of time units corresponding to a first time interval than p, or r is increased by a number of time units corresponding to the first time interval and q time units than p, or r is increased by a sum of a number of time units corresponding to the first time interval and q time units than p.

[0137] In combination with the eighth aspect, in some implementations of the eighth aspect, the second downlink information includes a first downlink control channel, the second uplink information includes uplink data scheduled by the downlink control information, p is N2 time units, r is greater than p, and N2 is a processing time of the second terminal device for processing the uplink information.

[0138] In some implementations of the eighth aspect, in combination with the eighth aspect, the r is increased by 2 time units than the p, or the r is increased by a number of time units corresponding to the first time interval, or the r is increased by a number of time units corresponding to the first time interval and the first time interval includes q time units, or the r is increased by a sum of a number of time units corresponding to the first time interval and q time units.

[0139] In some implementations of the eighth aspect, in combination with the eighth aspect, the second downlink information includes a contention resolution message, the second uplink information is HARQ feedback corresponding to the contention resolution message, the p is a sum of a number of time units corresponding to 0.5 milliseconds and N1 time units, the r is greater than the p, and N1 is a processing time of the second terminal device for processing uplink information.

[0140] In some implementations of the eighth aspect, in combination with the eighth aspect, the r is increased by 2 time units than the p, or the r is increased by a number of time units corresponding to the first time interval, or the r is increased by a number of time units corresponding to the first time interval and the first time interval includes q time units, or the r is increased by a sum of a number of time units corresponding to the first time interval and q time units

[0141] The scheme gives the specific message type of transmission, and gives the uplink and downlink switching time interval when transmitting the message type, which can effectively improve the success rate of information transmission.

[0142] It should be understood that the r can be a certain time interval value, such as 140 microseconds, or a number of time units corresponding to 140 microseconds, such as a number of symbols, or a specific time interval value and a number of corresponding time units, such as 80 microseconds + 2 symbols, or a sum of the number of time units, such as 2 symbols + 2 slots.

[0143] In some implementations of the eighth aspect, in combination with the eighth aspect, the first time interval can be predefined, or the first time interval can be reported by the capability of the terminal device. The first time interval has the same value as an element in a third set. The third set includes at least one value in {35 microseconds, 140 microseconds, 210 microseconds, 300 microseconds, 500 microseconds}, or the third set includes at least one value in {a number of symbols corresponding to 35 microseconds, a number of symbols corresponding to 140 microseconds, a number of symbols corresponding to 210 microseconds, a number of symbols corresponding to 300 microseconds, a number of symbols corresponding to 500 microseconds}.

[0144] In a ninth aspect, a method for transmitting information is provided, which is performed in a communication system including a network device, a first terminal device and a second terminal device, the second terminal device having a time interval A between uplink transmission and downlink transmission, the first terminal device supporting a maximum channel bandwidth smaller than a maximum channel bandwidth supported by the second terminal device, and the method can include: sending, by the first terminal device, first uplink information through a first uplink resource in a first time period; and receiving, by the first terminal device, first downlink information through a first downlink resource in a second time period, wherein a frequency range corresponding to the first uplink resource and the first downlink resource is greater than the maximum channel bandwidth supported by the first terminal device, the time interval A is greater than a time interval B between the first time period and the second time period, and the second time period is a first time period for communication between the first terminal device and the network device after the first time period.

[0145] The scheme increases the time interval between the reception of downlink information and the sending of uplink information by the first terminal device, improves the success rate of information transmission during frequency switching, further improves the success rate of the random access procedure of the first terminal device, and avoids power consumption caused by random access failure of the communication device.

[0146] In combination with the ninth aspect, in some implementations of the ninth aspect, before the first terminal device receives the first downlink information through the first downlink resource in the second time period, the method can further include: receiving, by the first terminal device, first indication information, the first indication information being used to indicate the time interval B or the second time period.

[0147] In combination with the ninth aspect, in some implementations of the ninth aspect, before the first terminal device receives the first downlink information through the first downlink resource in the second time period, the method can further include: reporting, by the first terminal device, capability information, the capability information including the time interval B or the second time period.

[0148] It should be understood that the time interval B or the second time period can be indicated by the network device, reported by the capability of the first terminal device, or predetermined, and the present application does not limit this.

[0149] In combination with the ninth aspect, in some implementations of the ninth aspect, the time interval B includes at least one of the following values: 35 microseconds, 140 microseconds, 210 microseconds, 300 microseconds, 500 microseconds, or a symbol number corresponding to 35 microseconds, a symbol number corresponding to 140 microseconds, a symbol number corresponding to 210 microseconds, a symbol number corresponding to 300 microseconds, or a symbol number corresponding to 500 microseconds.

[0150] It should be understood that the time interval is not limited to the listed values, and the time interval can be a certain time interval value, such as 140 microseconds, or the number of time units corresponding to 140 microseconds, such as the number of symbols or the number of slots, or a specific time interval value and the number of corresponding time units, such as 80 microseconds + 2 symbols, or the sum of the number of time units, such as 2 symbols + 2 slots. The present application does not limit this.

[0151] In a tenth aspect, a communication apparatus is provided, which is configured to implement the method of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the first aspect or the third aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0152] In an eleventh aspect, a communication apparatus is provided, which is configured to implement the method of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0153] In a twelfth aspect, an embodiment of the present application provides a communication apparatus, which comprises a transmitter and a processor, and the transmitter and the processor are configured to implement the method of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the first aspect or the third aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0154] In a thirteenth aspect, an embodiment of the present application provides a communication apparatus, which comprises a receiver and a processor, and the receiver and the processor are configured to implement the method of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0155] In a fourteenth aspect, an embodiment of the present application provides a computer readable medium storing program codes for execution by a terminal device, the program codes comprising instructions for performing the communication method in the method of any one of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementation manners of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0156] In a fifteenth aspect, an embodiment of the present application provides a computer readable medium storing program codes for execution by a network device, the program codes comprising instructions for performing the method of any one of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementation manners of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0157] In a sixteenth aspect, a computer program product containing instructions, which when executed on a computer, cause the computer to perform the method of any one of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementation manners of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0158] In a seventeenth aspect, a computer program product containing instructions, which when executed on a computer, cause the computer to perform the method of any one of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementation manners of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0159] In an eighteenth aspect, a communication system is provided, which comprises a device having the function of implementing the method and various possible designs of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the first aspect or the third aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, and a device having the function of implementing the method and various possible designs of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0160] In a nineteenth aspect, a processor is provided, which is configured to be coupled with a memory, and configured to implement the method in the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the first aspect or the third aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0161] In a twentieth aspect, a processor is provided, which is configured to be coupled with a memory, and configured to implement the method in the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0162] In a twenty-first aspect, a chip is provided, which comprises a processor and a communication interface, the communication interface being configured to communicate with an external device or an internal device, and the processor being configured to implement the method in the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the first aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the first aspect or the third aspect or the fifth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0163] Optionally, the chip further comprises a memory, and the memory stores instructions, and the processor is configured to execute the instructions stored in the memory or instructions from other sources. When the instructions are executed, the processor is configured to implement the method in the first aspect or any possible implementation of the first aspect.

[0164] Optionally, the chip can be integrated in a terminal.

[0165] In a twenty-second aspect, a chip is provided, the chip comprising a processor and a communication interface configured to communicate with an external device or an internal device, and the processor is configured to implement the method of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or any possible implementation of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect, or all possible implementations of the second aspect or the sixth aspect or the seventh aspect or the eighth aspect or the ninth aspect.

[0166] Optionally, the chip further comprises a memory, and the memory stores instructions, and the processor is configured to execute the instructions stored in the memory or other instructions. When the instructions are executed, the processor is configured to implement the method of the second aspect or any possible implementation of the second aspect.

[0167] Optionally, the chip can be integrated in an access network device. BRIEF DESCRIPTION OF DRAWINGS

[0168] Figure 1 FIG. 1 is a schematic diagram of a communication system architecture suitable for embodiments of the present application.

[0169] Figure 2 FIG. 2 shows a schematic flow chart of a method of transmitting information and a schematic diagram of occupied resources according to an embodiment of the present application.

[0170] Figure 3 FIG. 3 shows a schematic diagram of a method of determining resources according to an embodiment of the present application.

[0171] Figure 4 FIG. 4 shows another schematic diagram of a method of determining resources according to an embodiment of the present application.

[0172] Figure 5 FIG. 5 shows another schematic diagram of a method of determining resources according to an embodiment of the present application.

[0173] Figure 6 FIG. 6 shows a schematic diagram of resources according to an embodiment of the present application.

[0174] Figure 7 FIG. 7 shows another schematic diagram of resources according to an embodiment of the present application.

[0175] Figure 8 FIG. 8 shows another schematic flow chart of a method of transmitting information according to an embodiment of the present application.

[0176] Figure 9 FIG. 9 shows a schematic diagram of a method of transmitting information according to an embodiment of the present application.

[0177] Figure 10 FIG. 10 shows another schematic diagram of a method of transmitting information according to an embodiment of the present application.

[0178] Figure 11 A schematic diagram of yet another method for transmitting information suitable for embodiments of the application is shown.

[0179] Figure 12 A schematic diagram of yet another method for transmitting information suitable for embodiments of the application is shown.

[0180] Figure 13 A schematic block diagram of a communication device according to an embodiment of the application is shown.

[0181] Figure 14 A schematic block diagram of another communication device according to an embodiment of the application is shown. DETAILED DESCRIPTION

[0182] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0183] Embodiments of the present application can be applied to various communication systems, such as a wireless local area network system (WLAN), a narrow band Internet of Things system (NB-IoT), a Global System for Mobile Communications (GSM), an Enhanced Data rate for GSM Evolution (EDGE), a Wideband Code Division Multiple Access (WCDMA) system, a Code Division Multiple Access 2000 (CDMA2000) system, a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system, a Long Term Evolution (LTE) system, a satellite communication system, a 5th generation (5G) system, or a new communication system to be developed in the future, etc.

[0184] Mobile communication technology has profoundly changed people's life, 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 in the future, massive device connections of mobile communication, the continuous emergence of various new services and application scenarios, 5G mobile communication system emerges as the times require. The international telecommunication union (ITU) defines three categories of application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), ultra reliable and low latency communications (URLLC) and massive machine type communications (mMTC).

[0185] Typical eMBB services include ultra-high-definition video, augmented reality (AR), virtual reality (VR), etc., and the main features of these services are large amount of data transmission and high transmission rate. Typical URLLC services include wireless control in industrial manufacturing or production process, motion control of unmanned cars and unmanned aircraft, and haptic interaction applications such as remote repair and remote surgery, etc. The main features of these services are ultra-high reliability, low latency, small amount of data transmission and burstiness. Typical mMTC services include smart grid power distribution automation and smart city, etc., and the main features are large number of connected devices, small amount of data transmission and data insensitive to transmission delay. These mMTC terminals need to meet the requirements of low cost and very long standby time.

[0186] Different services have different requirements for mobile communication systems, and how to better support the data transmission requirements of multiple different services at the same time is a technical problem that needs to be solved by current 5G mobile communication systems. 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.

[0187] The research on mMTC in 5G standard has not been widely carried out.

[0188] Currently, the standard refers to user equipment (UE) for mMTC services as low-complexity UE (reduced capability UE, REDCAP UE), narrow-bandwidth user equipment, IoT devices, or low-end smart handheld terminals. This type of UE may have lower complexity than other UEs in terms of bandwidth, power consumption, and number of antennas, such as narrower bandwidth, lower power consumption, and fewer antennas. This type of UE can also be called a lightweight terminal device (NR light, NRL). The maximum bandwidth supported by mMTC user equipment is less than 100MHz. It should be noted that the mMTC user equipment in this application is not limited to machine-type communication devices; it can also be a smart handheld terminal.

[0189] This application provides an embodiment of a mobile communication system architecture diagram. (See diagram below.) Figure 1 As shown, the mobile communication system includes a wireless access network device 120, i.e., a network device 120, and at least one terminal device (such as...). Figure 1 The terminal devices 130, 140, and 150 are included in this document. The terminal devices connect wirelessly to the wireless access network equipment, which in turn connects wirelessly or via a wired connection to the core network equipment. The core network equipment and the wireless access network equipment can be independent physical devices, or the functions of the core network equipment and the logical functions of the wireless access network equipment can be integrated onto the same physical device. Alternatively, a single physical device can integrate some of the functions of the core network equipment and some of the functions of the wireless access network equipment. The terminal devices can be fixed in location or mobile. Figure 1 This is just an illustration; the communication system may also include other network devices, such as wireless repeaters and wireless backhaul devices. Figure 1 Not shown in the diagram. The embodiments of this application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.

[0190] It should be understood that the information sending end in the communication system of this application can be a network device or a terminal device, and the information receiving end can be a network device or a terminal device. This application does not limit this, as long as the communication system has a first type of terminal device participating in the communication.

[0191] This application describes the solution using a network device and a first terminal device as the two interacting parties, but does not limit the scope of the application.

[0192] The wireless access network device is an access device through which a terminal device accesses the mobile communication system in a wireless manner. The wireless access network device can be a base station, an evolved Node B (eNodeB), a base station in a 5G mobile communication system, a base station in a future mobile communication system, an access node in a WiFi system, and the like. Embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device.

[0193] The terminal device can also be referred to as a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), and the like. The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, and the like.

[0194] The wireless access network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water; and can also be deployed on aircraft, balloons, and satellites in the air. Embodiments of the present application do not limit the application scenarios of the wireless access network device and the terminal device.

[0195] Embodiments of the present application can be applicable to downlink signal transmission, uplink signal transmission, and device to device (D2D) signal transmission. For downlink signal transmission, the transmitting device is the wireless access network device, and the corresponding receiving device is the terminal device. For uplink signal transmission, the transmitting device is the terminal device, and the corresponding receiving device is the wireless access network device. For D2D signal transmission, the transmitting device is the terminal device, and the corresponding receiving device is also the terminal device. Embodiments of the present application do not limit the transmission direction of the signal.

[0196] The wireless access network device and the terminal device, and the terminal device and the terminal device can communicate through the licensed spectrum, or through the unlicensed spectrum, or through the licensed spectrum and the unlicensed spectrum at the same time. The wireless access network device and the terminal device, and the terminal device and the terminal device can communicate through the spectrum below 6G, or through the spectrum above 6G, or 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 device and the terminal device.

[0197] In order to facilitate understanding of the present application, the random access process is simply described. The random access process is as follows:

[0198] The terminal device searches for a synchronization signal and a physical broadcast channel (SSB), and the terminal device acquires a master information block (MIB) sent by the network device by searching for the SSB. The terminal device acquires the time domain resource and the frequency domain resource of the control resource set (CORESET) according to the MIB, and the terminal device can detect the downlink control information (DCI) scheduling the system information block (SIB) on the CORESET. The SIB1 is received at the time-frequency location indicated by the DCI. In this way, the initial uplink bandwidth part (Initial UL BWP), the initial downlink bandwidth part (Initial DL BWP), the random access preamble list, the random access occasion list and other information indicated in the SIB1 can be received.

[0199] According to the SIB1, the terminal device sends a physical random access channel (PRACH, i.e. Msg1) carrying a random access sequence in the random access occasion (RO) resource associated with the SSB;

[0200] If the base station successfully receives the random access sequence and allows the UE to access, the UE is sent a random access response (RAR), i.e., Msg2, within a pre-configured RAR window;

[0201] Meanwhile, the UE monitors downlink control information (DCI) transmitted on a physical downlink control channel (PDCCH) within the pre-configured RAR window, the DCI being used to instruct the UE to obtain RAR information from a media access control (MAC) protocol data unit (PDU) carried by a physical downlink shared channel (PDSCH).

[0202] It should be understood that if the base station fails to receive the preamble sequence due to collision of the selected random access sequences between different UEs or poor channel conditions, etc., the base station will not send RAR information, and the UE will not detect DCI and MAC RAR in the RAR window, and this time the random access fails.

[0203] After the terminal successfully detects the DCI, the terminal receives the random access response RAR (i.e., Msg2), sends a physical uplink shared channel (PUSCH), i.e., Msg3, according to the time-frequency resource indicated by the uplink grant UL grant in the random access response, the network device sends a DCI to the terminal device, the DCI indicating the time-frequency resource carrying the contention resolution message, i.e., Msg4, the terminal device detects the DCI and receives Msg4.

[0204] It is noted that before the Radio Resource Control (RRC) connection setup, the UE needs to receive within the 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) connection setup, the UE needs to transmit within the initial UL BWP: PUSCH carrying Msg1, and PUSCH carrying Msg3.

[0205] For the convenience of understanding the embodiments of the present application, the related concepts involved in the present application are briefly introduced as follows:

[0206] 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 reduced capability UE (REDCAP UE), and the second type of terminal device can be a legacy UE, such as an eMBB UE.

[0207] The characteristics of the first type of terminal device and the second type of terminal device are different, and the characteristics include one or more of the following:

[0208] The bandwidth, the number of supported or configured resources, the number of transmit antenna ports and / or receive antenna ports, the number of radio frequency channels, the number of hybrid automatic repeat request (HARQ) processes, the supported peak rate, the application scenario, the latency requirement, the processing capability, the protocol version, the duplex mode, and the service. The first characteristic is described in detail as follows.

[0209] The bandwidth, or the channel bandwidth, or the maximum channel bandwidth supported or configured by the terminal device, the bandwidths of the first type of terminal device and the second type of terminal device are different, for example: the bandwidth of the first type of terminal device can be 20MHz or 10MHz or 5MHz, and the bandwidth of the second type of terminal device can be 100MHz. It can be understood that with the development of communication technology, the maximum channel bandwidth supported by the first type of terminal device can no longer be 20MHz or 10MHz or 5MHz, but can evolve into a wider or narrower bandwidth, such as 3MHz, 25MHz, or 50MHz.

[0210] The number of supported or configured resources, which can be the number of RBs, REs, subcarriers, RB groups, REG bundles, control channel elements, subframes, radio frames, time slots, mini-slots, and / or symbols, the number of resources supported or configured by the first type of terminal device and the second type of terminal device are 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.

[0211] The number of transmit antenna ports and / or receive antenna ports, i.e., the number of transmit antenna ports and / or receive antenna ports of the first type of terminal device and the second type of terminal device are different, for example: the number of transmit antenna ports of the first type of terminal device can be 1, and the number of receive antenna ports can be 2, the number of transmit antenna ports of the second type of terminal device can be 2, and the number of receive antenna ports can be 4.

[0212] The number of radio frequency channels, i.e., the number of radio frequency channels of the first type of terminal device and the second type of terminal device are different, for example: the number of radio frequency channels of the first type of terminal device can be 1, and the number of radio frequency channels of the second type of terminal device can be 2.

[0213] The number of HARQ processes, i.e., the number of HARQ processes supported by the first type of terminal device and the second type of terminal device are different, for example: the number of HARQ processes of the first type of terminal device can be 8, and the number of HARQ processes of the second type of terminal device can be 16.

[0214] The supported peak rate, i.e., the maximum peak rate of the first type of terminal device and the second type of terminal device are different, for example: the maximum peak rate supported by the first type of terminal device can be 100 Mbps, and the peak rate supported by the second type of terminal device can be 200 Mbps.

[0215] Application scenarios, i.e., the first type of terminal device and the second type of terminal device are used to serve different application scenarios, for example: the first type of terminal device is applied to industrial wireless sensing, video monitoring, wearable devices, etc., and the second type of terminal device is applied to mobile communication, video surfing, etc.

[0216] Latency requirements, i.e., the latency requirements of the first type of terminal device and the second type of terminal device are different, for example: the latency requirement of the first type of terminal device can be 500 milliseconds, and the latency requirement of the second type of terminal device can be 100 milliseconds.

[0217] Processing capability, and the first type of terminal device and the second type of terminal device have different processing speeds under different subcarrier space (SCS) conditions for channel or data processing timing, for example: the first type of terminal device does not support complex operations, which can include artificial intelligence (AI), virtual reality (VR) rendering, and the second type of terminal device supports complex operations, or it is understood that the processing capability of the first type of terminal device is lower than that of the second type of terminal device.

[0218] Protocol version, that is, the first type of terminal device and the second type of terminal device belong to terminal devices of different protocol versions, for example: the first type of terminal device supports a protocol version of Release 17 and a protocol version after Release 17, and the second type of terminal device supports a protocol version before Release 17, such as Release 15 or Release 16.

[0219] Duplex mode, which includes half duplex and full duplex, for example: the first type of terminal device works in half duplex mode, and the second type of terminal device works in full duplex mode.

[0220] Service, including but not limited to Internet of Things applications, such as video monitoring, mobile broadband MBB, etc., for example: the first type of terminal device supports video monitoring service, and the second type of terminal device supports mobile broadband MBB. The embodiments of the present application are not limited in this regard.

[0221] It should be understood that other types, or future new types of terminal devices that also support the technical solutions of the present application are also within the protection scope of the present application.

[0222] The first terminal device in the present application can be an example of the first type of terminal device, and the second terminal device can be an example of the second type of terminal device.

[0223] 2. Initial downlink bandwidth part (Initial DLBWP): indicated in SIB1, the frequency range contains CORESET, but it will only take effect after the completion of Msg4 reception.

[0224] 3. Initial uplink bandwidth part (Initial UL BWP): indicated in SIB1, the initial uplink bandwidth part is involved in the initial access process, and the PRACH, Msg3, and Msg4 HARQ-ACK feedback are all in the range of the initial uplink bandwidth part.

[0225] 4. CORESET: Control resource set. The terminal device is receiving downlink control information or downlink data information in the CORESET. When the terminal device and the peer device do not establish an RRC connection, the frequency range of the downlink control channel and the downlink data channel is in CORESET 0.

[0226] It should be understood that the low-complexity terminal device is a relative concept, and the present application does not limit this. For example, a new type of terminal device that may be developed in the future has a feature that is more complex than the existing legacy UE in at least one of bandwidth, number of antennas, device power consumption, etc. At that time, the legacy UE will be the first type of terminal device in the present application, and the new type of terminal device will be the second type of terminal device in the present application. The embodiments of the present application are still applicable and within the scope of protection of the present application.

[0227] 5. Center frequency: the center frequency of a resource block, or the resource block with the index as the center in the bandwidth

[0228] Starting resource block (RB): the resource block with the smallest index in the bandwidth, or the first resource block in the bandwidth.

[0229] End resource block (RB): the resource block with the largest index in the bandwidth, or the last resource block in the bandwidth.

[0230] It should be understood that the resources in the present application can be symbols, or time slots, or mini-slots, or subframes, etc. The resources in the present application can also be subcarriers, or resource blocks, or carriers, or channel control elements, etc.

[0231] When the resources in the present application are symbols, the resource units can be time slots, or short time slots, or subframes. When the resources in the present application are subcarriers, the resource units are resource blocks, or carriers, or channel control elements, etc.

[0232] In order to facilitate understanding of the embodiments of the present application, the related terms are explained in advance.

[0233] The first resource and the first bandwidth in the present application are different descriptions of the same frequency range resource. For example, the first resource or the first bandwidth can be an uplink BWP; for example, the first resource or the first bandwidth can be a downlink BWP; for example, the first resource or the first bandwidth can be an initial downlink BWP; for example, the first resource or the first bandwidth can be an initial uplink BWP; for example, the first resource or the first bandwidth can be a piece of resource whose size is equal to or less than the maximum channel bandwidth supported by the first terminal device. The first control resource set is denoted as CORESETa, for example, before RRC connection establishment, CORESETa is CORESET 0; for example, before or after RRC connection establishment, CORESETa can also be a common CORESET, at least one RB of the common CORESET can not be within the range of CORESET 0, that is, CORESETa and CORESET 0 can be different CORESETs.

[0234] In the present application, the size of the first resource or the first bandwidth is equal to or less than the maximum channel bandwidth supported by the first terminal device, and the size can be predefined or indicated by the network device. For example, the size can be 5MHz, or the number of RBs corresponding to 5MHz under different subcarrier spacings, or 10MHz, or the number of RBs corresponding to 10MHz under different subcarrier spacings, or 20MHz, or the number of RBs corresponding to 20MHz under different subcarrier spacings. The first resource or the first bandwidth can be understood as a resource configured by the network device for the first terminal device, which includes a frequency bandwidth range (for example, the number of RBs) and / or a frequency location. For example, the resource indicated by a field in high layer signaling or physical layer signaling is dedicated to the first terminal device. For example, the first control resource set is CORESET 0, the first resource or the first bandwidth is an initial uplink BWP, and the first terminal device determines the location of the initial uplink BWP according to the location of CORESET 0. It can be understood that: the initial uplink BWP is a resource for the first terminal device to send uplink information, which can be shared with the second type terminal device, or can not be shared with the second type terminal device (that is, the initial uplink BWP is an initial uplink BWP dedicated to the first type terminal device).

[0235] For the first terminal device which is not capable of simultaneous downlink reception and uplink transmission, the first terminal device needs to perform downlink reception and uplink transmission in a time-division manner. For example, the first terminal device is a time-division duplex (TDD) UE which is not capable of simultaneous downlink reception and uplink transmission. For another example, the first terminal device is a half-duplex first terminal device which is not capable of simultaneous downlink reception and uplink transmission. It is assumed that the first terminal device performs downlink reception in the first control resource set and then performs uplink transmission in the first resource. If the frequency range corresponding to the frequency range of the first control resource set and the frequency range of the first resource exceeds the maximum channel bandwidth of the UE, the first terminal device needs to perform frequency tuning after the downlink reception and then perform uplink transmission in the first resource.

[0236] Similarly, the first terminal device performs uplink transmission in the first resource and then performs downlink reception in the first control resource set. If the frequency range corresponding to the frequency range of the first resource and the frequency range of the first control resource set exceeds the maximum channel bandwidth of the first terminal device, the first terminal device needs to perform frequency tuning after the uplink transmission and then perform downlink reception in the first control resource set.

[0237] The frequency tuning reduces the available symbols for data transmission, reduces resource utilization efficiency, increases power consumption of the first control resource set, and increases the complexity of implementation of the first control resource set. To solve the above problems, one embodiment of the present application provides a method for transmitting information, as shown in (a) of Figure 2

[0238] 200: A network device configures a first control resource set;

[0239] It should be understood that step 200 is optional, and the first control resource set can also be predefined. The network device can configure the first control resource set for the terminal device through signaling such as a master information block (MIB).

[0240] 201: A first terminal device determines a first control resource set;

[0241] It should be understood that the information of the first control resource set can be predefined or indicated to the first terminal device by signaling of the network device. The present application does not limit this. For example, the first terminal device determines the size and position of the first control resource set, for example, by MIB signaling.

[0242] 202: The first terminal device determines the position of the first resource according to the position of the first control resource set, and the first resource can include a first downlink resource and / or a first uplink resource.

[0243] ​When the first resource includes a first downlink resource and a first uplink resource, as shown in (b) of Figure 2 the frequency range of the first uplink resource corresponds to the frequency range of the first downlink resource in frequency, and the total frequency range does not exceed the maximum channel bandwidth of the first terminal device.

[0244] 203: The first terminal device transmits uplink information through the first resource, or 204: The first terminal device receives downlink information through the first resource.

[0245] Wherein, the total frequency range corresponding to the frequency range of the first resource and the frequency range of the first control resource set in frequency does not exceed the maximum channel bandwidth of the first terminal device.

[0246] The first terminal device determines the position of the first resource according to the position of the first control resource set, which can be determined according to the position of the first control resource set and the first offset.

[0247] Specifically, the position of the first control resource set can be the A th RB of the first control resource set, or the starting subcarrier of the A th RB of the first control resource set, or the center frequency (or center subcarrier) of the first control resource set, or the center frequency (or center subcarrier) of the A th RB of the first control resource set, or the last subcarrier of the A th RB of the first control resource set, or the starting CCE of the first control resource set, or the starting REG of the first control resource set, or the starting symbol of the first control resource set, or the starting slot of the first control resource set, etc.

[0248] Wherein A is a positive integer, or A is a pre-specified positive integer. For example, A = 1, or A = X, or A = X / 2, or A = X / 2+1. Wherein, X is the size of the first control resource set, and is in units of RB.

[0249] That is, the position of the first control resource set can be the 1 st RB of the first control resource set, which can be the starting subcarrier or the center subcarrier or the last subcarrier of the 1 st RB of the first control resource set. For example, the A th RB of the first control resource set is the RB whose index is A-1 in the first control resource set.

[0250] The position of the first resource can be the Z th RB of the first resource, or the starting subcarrier of the Z th RB of the first resource, or the center frequency (or center subcarrier) of the first resource, or the center frequency (or center subcarrier) of the Z th RB of the first resource, or the last subcarrier of the Z th RB of the first resource.

[0251] Wherein Z is a positive integer. For example, Z = 1, or Z = L, or Z = L / 2, or Z = L / 2+1. Wherein, L is the size of the first resource, and is in RB. Wherein, L is the number of RBs contained by the first resource, and X is the number of RBs contained by the first control resource set.

[0252] That is, the position of the first resource can be the 1st RB of the first resource, or the start subcarrier or the center subcarrier or the last subcarrier of the 1st RB of the first resource. For example, the Zth RB of the first resource is the RB with index Z-1 of the first resource.

[0253] The first offset refers to the interval between the position of the first control resource set and the position of the first resource, and there are two possibilities: the offset is 0, that is, the position reference point (i.e., the first position) of the selected first control resource set is aligned with the position reference point (i.e., the second position) of the selected first resource, for example, the positions of the 1st RB of the first control resource and the 2nd RB of the first resource can be the same; the offset is not 0, that is, the position of the selected first control resource set is not aligned with the position of the selected first resource, for example, the positions of the 1st RB of the first control resource and the 6th RB of the first resource can be different.

[0254] It should be understood that the value of the offset depends on the selection of the position of the first control resource set and the position of the first resource. For example, when the center frequencies of the first control resource and the first resource are the same and the sizes are the same, the center frequency of the first control resource set is selected as the position of the first control resource set, and the center frequency of the first resource is selected as the position of the first resource, then the offset is 0; for example, the 3rd RB of the first control resource set is selected as the position of the first control resource set, and the 1st RB of the first resource is selected as the position of the first resource, then the offset is not 0.

[0255] It should be understood that the position herein can be a collective term of the position reference points. For example, the position of the first control resource set can be a collective term of the position reference points of the first control resource set, and the position of the first resource can be a collective term of the position reference points of the first resource.

[0256] It should be understood that the selection of the position reference point of the first control resource set can be different from the selection of the position reference point of the first resource, that is, Z and A can be different, that is, the position of the first control resource set can be the 1st RB of the first control resource set, and the position of the first resource can be the 3rd RB of the first resource. The present application does not limit this. For example, Z can be equal to A. For example, Z = A = 1. However, it is not limited that Z can also be not equal to A. For example, Z = X, A = 1.

[0257] The total frequency range corresponding to the frequency range of the first control resource set and the frequency range of the first resource in frequency can be less than or equal to the maximum channel bandwidth supported by the first terminal device, that is, the bandwidth between the starting position (which can be the first RB) of the first control resource set and the ending position (which can be the last RB) of the first resource is less than or equal to the maximum bandwidth supported by the first terminal device, or the bandwidth between the ending position (which can be the last RB) of the first control resource set and the starting position (which can be the first RB) of the first resource is less than or equal to the maximum bandwidth supported by the first terminal device.

[0258] It should be understood that the first control resource set can overlap or not overlap with the first resource, and the first control resource set can be CORESET 0.

[0259] The first offset can be defined as the interval between the first position of the first control resource set and the second position of the first resource. For example, the first offset is N RBs. As Figure 3 mentioned, the first position of the first control resource set is the first RB, and the second position of the first resource is the first RB, that is, Z = A = 1.

[0260] In particular, when the first offset is 0, the second position of the first resource can be directly determined by the first position of the first control resource set. The calculation method of the second position can be: the position of the second position = the position of the first position + the first offset N.

[0261] Specifically, N can be predefined or indicated by the network device to the first terminal device through the first signaling, which is not limited in the present application. For example, the first signaling can be SIB1.

[0262] The value of N can determine the first offset according to at least one of the size of the first control resource set, the size of the first bandwidth, and the maximum channel bandwidth supported by the first terminal device.

[0263] For example, N can be a predefined integer, including 0, a positive integer, and a negative integer.

[0264] Taking the first position of the first control resource set as the first RB of the first control resource set and the second position of the first resource as the first RB of the first resource as an example.

[0265] The value of N is equal to 0 (for example, Figure 3of (a) in the first control resource set is adjacent to the first RB of the first resource, and the offset is N = -L, the first resource is not overlapped with the first control resource set in frequency, and N = -L corresponds to the lower bound of the position of the first resource, from the perspective of the network device, more resources are used for information transmission, increasing the flexibility of scheduling, from the perspective of the terminal device, the increase of terminal device power consumption caused by frequency modulation is avoided. At the same time, the frequency range of the first resource is not overlapped with the first control resource set in frequency, which can avoid the problem of limited allocation or congestion of resources of the first control resource set

[0266] For example, the value of N is equal to X-L (such as Figure 3 of (c) in the first control resource set is adjacent to the last RB of the first resource, and the offset is X-L, the frequency range of the first resource is overlapped with the frequency range of the first control resource set in frequency, and X-L corresponds to the upper bound of the position of the first RB of the first resource in frequency, from the perspective of the network device, more resources are used for information transmission, increasing the flexibility of scheduling, from the perspective of the terminal device, the increase of terminal device power consumption caused by frequency modulation is avoided.

[0267] For example, the value of N is equal to (X-L) / 2 or floor((X-L) / 2) (such as Figure 3 of (b) in the first control resource set is adjacent to the center RB of the first resource, and the offset is (X-L) / 2 or floor((X-L) / 2), the frequency range of the first resource is overlapped with the frequency range of the first control resource set in frequency, and the position of the first control resource set is the center of the first resource, from the perspective of the network device, more resources are used for information transmission, increasing the flexibility of scheduling, from the perspective of the terminal device, the increase of terminal device power consumption caused by frequency modulation is avoided.

[0268] For example, the value of N is equal to -L (such as Figure 3 of (d) in the first control resource set is adjacent to the last RB of the first resource, and the offset is N = -L, the first resource is not overlapped with the first control resource set in frequency, and N = -L corresponds to the lower bound of the position of the first resource, from the perspective of the network device, more resources are used for information transmission, increasing the flexibility of scheduling, from the perspective of the terminal device, the increase of terminal device power consumption caused by frequency modulation is avoided. At the same time, the frequency range of the first resource is not overlapped with the first control resource set in frequency, which can avoid the problem of limited allocation or congestion of resources of the first control resource set

[0269] For example, the value of N is equal to X (such as Figure 3N = -L, N = X corresponds to the upper bound of the location of the first resource, from the perspective of the network device, there are more resources for information transmission, increasing the flexibility of scheduling, from the perspective of the terminal device, avoiding the increase of terminal device power consumption caused by frequency modulation. At the same time, the frequency range of the first resource does not overlap with the first control resource set in frequency, which can avoid the problem of limited allocation or congestion of resources of the first control resource set

[0270] For example, the value of N can also be any positive integer or negative integer, for example, the value of N can be divided by 2 power.

[0271] For example, N can be a predefined integer, including 0, positive integer, negative integer. The value of N is the same as the value of one element in the first set. The first set at least includes one or more values in {0, X-L, (X-L) / 2, -L, X}, or the first set at least includes one or more values in {0, X-L, floor((X-L) / 2), -L, X}.

[0272] For example, the first set includes {0, X-L)}. When N can take values in this set, the first set is the largest frequency range that can be covered in the case that the frequency range of the first resource includes the frequency range of the first control resource set. From the perspective of the network device, there are more resources for information transmission, increasing the flexibility of scheduling, from the perspective of the terminal device, avoiding the increase of terminal device power consumption caused by frequency modulation.

[0273] For example, the first set includes {0, (X-L) / 2, (X-L)}, or the first set includes {0, floor((X-L) / 2), (X-L)}. When N can take values in this set, the first set is the largest frequency range that can be covered in the case that the frequency range of the first resource includes the frequency range of the first control resource set. From the perspective of the network device, there are more resources for information transmission, increasing the flexibility of scheduling, from the perspective of the terminal device, avoiding the increase of terminal device power consumption caused by frequency modulation.

[0274] For example, the first set includes {0, (X-L) / 2, (X-L), X}, or the first set includes {0, floor((X-L) / 2), (X-L), X}. For example, the first set includes {0, (X-L) / 2, (X-L), -L}, or the first set includes {0, floor((X-L) / 2), (X-L), -L}. For example, the first set includes {0, (X-L) / 2, (X-L), X, -L}, or the first set includes {0, floor((X-L) / 2), (X-L), X, -L}. When the set includes N, the value of N in the first set satisfies: the frequency range of the first resource includes the frequency range of the first control resource set in frequency, and the frequency range of the first resource includes the frequency range of the first control resource set in frequency. The network device has more resources for information transmission, and can obtain the maximum scheduling flexibility. From the perspective of the terminal device, the increase of terminal device power consumption caused by frequency switching is avoided.

[0275] For example, N can be indicated by the network device to the first terminal device through the first signaling. The network device indicates the value of N in K values through the first signaling. At least T values in the K values are the same as the values of the T elements in the first set, where K is a positive integer, T is a positive integer, and K is greater than or equal to T. The first set at least includes one or more values in {0, X-L, (X-L) / 2, -L, X}, or the first set at least includes one or more values in {0, X-L, floor((X-L) / 2), -L, X}. It should be understood that the values of K-T elements in the K values can be different from the values in {0, X-L, (X-L) / 2, -L, X} or {0, X-L, floor((X-L) / 2), -L, X}. For example, the values of the K-T elements can be positive integer multiples of powers of 2, or can be negative integer multiples of powers of 2. It should be understood that when K is equal to T, the K values are all values in {0, X-L, (X-L) / 2, -L, X}, or the K values are all values in {0, X-L, floor((X-L) / 2), -L, X}.

[0276] That is, the set indicated to the first terminal device at least includes one value that N can take.

[0277] For example, N is indicated by the network device to the first terminal device through the first signaling. The network device indicates the value of N in the second set through the first signaling. The second set includes at least one or more values in {0, X-L, (X-L) / 2, -L, X}, or the second set includes at least one or more values in {0, X-L, floor((X-L) / 2), -L, X}. For example, the second set includes {0, X-L}; the network device indicates the value of N in the second set by using 1 bit. For example, the second set includes {0, X-L, (X-L) / 2}, or the second set includes {0, X-L, floor((X-L) / 2)}; the network device indicates the value of N in the second set by using 2 bits. For example, the second set includes {0, X-L, (X-L) / 2, -L}, or the second set includes {0, X-L, floor((X-L) / 2), -L}; the network device indicates the value of N in the second set by using 2 bits. For example, the second set includes {0, X-L, (X-L) / 2, -L, X}, or the second set includes {0, X-L, floor((X-L) / 2), -L, X}; the network device indicates the value of N in the second set by using 3 bits. It should be understood that the value of N or the set of values of N described above can be indicated by the network device to the first terminal device through signaling, or can be predefined. If the first terminal device does not receive the first signaling, a default value of N is used, and the default value of N can be one of 0, X-L, (X-L) / 2, floor((X-L) / 2), -L, X.

[0278] It should be understood that the first signaling can indicate the value of N, can indicate the index corresponding to the value of N, or can indicate the index of the row (the values of N in the table are different when the rows are different) or the index of the column (the values of N in the table are different when the columns are different) in the table composed of the values of N. The elements in the table composed of the values of N are the values of N described above, or the first signaling can indicate the index corresponding to the set in the table composed of the set of values of N, which is not limited in the present application.

[0279] In one possible implementation, the first offset is related to a reference subcarrier spacing, and the first offset can be determined according to the reference subcarrier spacing.

[0280] The reference subcarrier spacing can be a subcarrier spacing of the first control resource set, or can be a smaller one of the subcarrier spacing of the first control resource set and the first resource, or can be a larger one of the subcarrier spacing of the first control resource set and the first resource.

[0281] For example, the subcarrier spacing of the first control resource set is smaller than or equal to the subcarrier spacing of the first resource, e.g., the subcarrier spacing of the first resource is 2 raised to the power of n of the subcarrier spacing of the first control resource set. Figure 4 For example, the value of N is equal to X-2 n * L (as in (c) of Figure 4 For example, the value of N is equal to (X-2 n * L) / 2 (as in (b) of Figure 4 For example, the value of N is equal to -2 n * L (as in (d) of Figure 4 For example, the value of N is equal to X (as in (e) of Figure 4 .

[0282] For example, the value of N is equal to 0 (as in (a) of Figure 5 For example, the value of N is equal to 2 -n * X-L (as in (c) of Figure 5 For example, the value of N is equal to (2 -n * X-L) / 2 (as in (b) of Figure 5 For example, the value of N is equal to -L (as in (d) of Figure 5 For example, the value of N is equal to 2 -n * X (as in (e) of Figure 5 .

[0283] For example, the subcarrier spacing of the first resource is smaller than or equal to the subcarrier spacing of the first control resource set. For example, the subcarrier spacing of the first control resource set is 2 raised to the power of n of the subcarrier spacing of the first resource.

[0284] For example, the value of N is equal to 0 (as in (a) of Figure 5 For example, the value of N is equal to 2 -n * X-L (as in (c) of Figure 5 For example, the value of N is equal to (2 -n * X-L) / 2 (as in (b) of Figure 5 For example, the value of N is equal to -L (as in (d) of Figure 5 For example, the value of N is equal to 2- n * X (as in (e) of Figure 4 .

[0285] If the reference subcarrier spacing is the first resource subcarrier spacing, the value of N includes 0, positive integer, negative integer; for example, the value of N is equal to 0 (such as (a) in Figure 4 The value of N is equal to X-2 n *L (such as (c) in Figure 4 The value of N is equal to (X-2 n *L) / 2 (such as (b) in Figure 4 The value of N is equal to -2 n *L (such as (d) in Figure 4 The value of N is equal to X (such as (e) in Figure 3 .

[0286] It should be understood that the value of N can be predefined or indicated by the network device, and the indication method is similar to the foregoing, which will not be described here.

[0287] In another possible implementation, the first terminal device determines the position of the first resource according to the position of the first control resource set and the first association relationship. The first association relationship refers to the association relationship between the position of the first control resource set and the corresponding first offset.

[0288] It should be understood that the position of the first control resource set and the first association relationship can be indicated to the first terminal device by the network device through signaling, and if the first terminal device does not receive the first signaling, a default value of N is used, and the default value of N is one of 0, X-L, (X-L) / 2, floor((X-L) / 2), -L, and X.

[0289] The position of the first control resource set and the first association relationship can also be predefined.

[0290] The first terminal device determines the position of the first control resource set, and can determine the position of the first resource set according to the first association relationship.

[0291] It should be understood that the first association relationship can include a value of the first offset, or a set of values of the first offset, or a value or a set of values of the first offset when the reference subcarrier spacing is used.

[0292] The frequency range of the first resource corresponds to the frequency range of the first control resource set in frequency, and the frequency range does not exceed the maximum channel bandwidth supported by the first terminal device. For a UE without the ability to simultaneously perform downlink reception and uplink transmission, frequent frequency tuning between uplink transmission and downlink reception can be avoided, and / or frequent frequency tuning between downlink reception and uplink transmission can be avoided, thereby improving the available symbols for data transmission, improving resource utilization efficiency, avoiding increasing the power consumption of the terminal device, and reducing the complexity of the terminal device implementation. The present application indicates the offset in the form of RB, and the first terminal device can directly determine the position of the first resource through the RB index or the offset RB quantity, and the terminal implementation is simpler. The frequency range of the first resource corresponds to the frequency range of the first control resource set in frequency, and the frequency range does not exceed the maximum channel bandwidth of the first terminal device. It can also be understood that the center frequency of the first control resource set is the frequency range of the maximum channel bandwidth supported by the first terminal device covered by the center, and the frequency range of the first resource is included.

[0293] In another possible implementation, the first terminal device determines the position of the first resource according to the position of the first control resource set, which can specifically include that the first terminal device determines the position of the first resource according to the position of the first control resource set and a second association relationship. The second association relationship can be that the position of the first control resource set is aligned with the position of the first resource.

[0294] For example, the second association relationship can be association relationship 1: the position of the first RB of the first control resource set is the same as the position of the first RB of the first resource, or the predefined association relationship is that the position of the first RB index of the first control resource set is the same as the position of the first RB index of the first resource, or the predefined association relationship is that the position of the starting subcarrier of the first RB of the first control resource set is the same as the position of the starting subcarrier of the first RB of the first resource, as described in (a) in Figure 3 Figure 3 The association relationship 1 is explained in (a) in the above-mentioned (a) taking the CORESET 0 and the initial UL BWP as an example. In the case that the frequency range of the first resource includes the frequency range of the first control resource set in frequency, the upper limit of the position of the last RB of the first resource in frequency, from the perspective of the network device, has more resources for information transmission, increasing the flexibility of scheduling, and from the perspective of the terminal device, avoiding the increase of the power consumption of the terminal device caused by frequency tuning

[0295] ​For example, the second association relationship can be association relationship 2: the center frequency of the first control resource set and the center frequency (center subcarrier) of the first resource are at the same position, or the X / 2th RB of the first control resource set and the L / 2th RB of the first resource are at the same position, or the center frequency (center subcarrier) of the X / 2th RB of the first control resource set and the center frequency (center subcarrier) of the L / 2th RB of the first resource are at the same position. Figure 3 (b) in the (b) takes CORESET 0 and initial UL BWP as an example to explain the association relationship 2. In the case where the frequency range of the first resource includes the frequency range of the first control resource set in frequency, the position of the first control resource set is at the center of the first resource, more resources are available for information transmission from the perspective of the network device, increasing the flexibility of scheduling, from the perspective of the terminal device, avoiding the increase of terminal device power consumption caused by frequency adjustment.

[0296] For example, the second association relationship can be association relationship 3: the RB with the largest index of the first control resource set and the RB with the largest index of the first resource are at the same position, or the Xth RB of the first control resource set and the Lth RB of the first resource are at the same position. Figure 3 (c) in the (c) takes CORESET 0 and initial UL BWP as an example to explain the association relationship 3. In the case where the frequency range of the first resource includes the frequency range of the first control resource set in frequency, the first RB of the first resource is at the lower bound in frequency, from the perspective of the network device, more resources are available for information transmission, increasing the flexibility of scheduling, from the perspective of the terminal device, avoiding the increase of terminal device power consumption caused by frequency adjustment.

[0297] For example, the second association relationship can be association relationship 4: the position of the first control resource set is separated from the position of the first resource by N RBs, and the value of N is 0. For example, the 1st RB of the first control resource set is adjacent to the Lth RB of the first resource. Figure 3 (d) in the (d) takes CORESET 0 and initial UL BWP as an example to explain the association relationship 4. In the case where the frequency range of the first resource does not overlap with the first control resource set in frequency, the lower bound of the position of the first resource, from the perspective of the network device, more resources are available for information transmission, increasing the flexibility of scheduling, from the perspective of the terminal device, avoiding the increase of terminal device power consumption caused by frequency adjustment. At the same time, the frequency range of the first resource does not overlap with the first control resource set in frequency, which can avoid the problem of limited allocation or congestion of resources of the first control resource set.

[0298] For example, the second association relationship can be that the association relationship is association relationship 5: the location of the first control resource set and the location of the first resource are separated by N RBs, and the value of N is 0. For example, the location of the Xth RB of the first control resource set is adjacent to the 1st RB of the first resource. Figure 6 The association relationship 5 is explained in (e) taking the CORESET 0 and the initial UL BWP as an example. In the case that the frequency range of the first resource does not overlap the first control resource set in frequency, the upper bound of the location of the first resource has more resources for information transmission from the perspective of the network device, increases the flexibility of scheduling, and avoids the increase of terminal device power consumption caused by frequency modulation from the perspective of the terminal device. At the same time, the frequency range of the first resource does not overlap the first control resource set in frequency, which can avoid the problem of limited allocation or congestion of resources of the first control resource set.

[0299] It should be understood that the above-mentioned second association relationship can be predefined or indicated by the network device through signaling. The signaling can be SIB1.

[0300] There is a possible implementation manner that the network device indicates the second association relationship through signaling.

[0301] The network device can indicate the association relationship through 1 bit. For example, the network device indicates the second association relationship in the association relationship 1 and the association relationship 3. Or, the network device indicates the second association relationship in the association relationship 4 and the association relationship 5. In the case that the frequency range of the first resource includes the frequency range of the first control resource set in frequency, the first set is the largest frequency range that can be covered. From the perspective of the network device, there are more resources for information transmission, which increases the flexibility of scheduling, and from the perspective of the terminal device, it avoids the increase of terminal device power consumption caused by frequency modulation.

[0302] For example, the network device indicates the association relationship through 2 bits. For example, the network device indicates the first association relationship in the association relationship 1, 2, and 3. In the case that the frequency range of the first resource includes the frequency range of the first control resource set in frequency, the first set is the largest frequency range that can be covered. From the perspective of the network device, there are more resources for information transmission, which increases the flexibility of scheduling, and from the perspective of the terminal device, it avoids the increase of terminal device power consumption caused by frequency modulation.

[0303] For example, the network device indicates the association relationship by 2 bits. For example, the network device indicates a first association relationship in association relationship 1, 2, 3, 4, or a second association relationship in association relationship 1, 2, 3, 5. The frequency range of the first resource includes the frequency range of the first control resource set in frequency, and the frequency range of the first resource includes the frequency range of the first control resource set in frequency. The network device has more resources for information transmission, and can obtain maximum scheduling flexibility. From the perspective of the terminal device, the increase of terminal device power consumption caused by frequency switching is avoided.

[0304] For example, the network device indicates the association relationship by 3 bits. For example, the network device indicates a second association relationship in association relationship 1, 2, 3, 4, 5. The frequency range of the first resource includes the frequency range of the first control resource set in frequency, and the frequency range of the first resource includes the frequency range of the first control resource set in frequency. The network device has more resources for information transmission, and can obtain maximum scheduling flexibility. From the perspective of the terminal device, the increase of terminal device power consumption caused by frequency switching is avoided.

[0305] After the first terminal device receives the indication of the network device, the first terminal device can determine the location of the first resource according to the second association relationship.

[0306] In another possible implementation, the first terminal device determines the location of the first resource from the locations of the plurality of candidate resources, which can also be understood as that the terminal device determines the first resource from the plurality of candidate resources.

[0307] From the perspective of the network device, the network device can configure a plurality of candidate bandwidths for the first terminal device, and more resources can be used for downlink data transmission, thereby improving the flexibility of resource allocation and avoiding resource congestion. From the perspective of the terminal device, the terminal device has a plurality of candidate bandwidths that can be used for information transmission, and the terminal device can determine the location of one of the first resources according to a rule, thereby improving the flexibility of information transmission of the terminal device. From the perspective of the terminal device, the terminal devices in the first type of terminal devices can be divided into a plurality of subtypes, and the first terminal device belongs to one of the subtypes. Different subtypes correspond to different candidate resources, and the corresponding relationship can be predefined or indicated by the network device through third signaling. For example, the first type of terminal devices is divided into two subtypes, the terminal devices of the first subtype correspond to candidate resource 1, and the terminal devices of the second subtype correspond to candidate resource 2.

[0308] For example, the location of the M candidate resources is determined according to the location of the first control resource set and M offsets. The M offsets correspond to the M candidate resources. The indexes of the M candidate resources can be 0, 1, …, M-1, and the indexes of the M offsets can be 0, 1, …, M-1. The offset N m-1 , where N m-1is the number of RBs between the location of the first control resource set and the location of the m th candidate resource, where m is a positive integer, 1<=m<=M. The M candidate bandwidths include at least two second resources, the two second resources have the same size and different N. For example, the M candidate bandwidths include 3 second resources, the size of the second resource with index 1 is 5MHz or the number of RBs corresponding to 5MHz, the size of the second resource with index 2 is 20MHz or the number of RBs corresponding to 20MHz, and the size of the second resource with index 3 is 20MHz or the number of RBs corresponding to 20MHz. The offset of the second resource with index 1 is N1, the offset of the second resource with index 2 is N2, and the offset of the second resource with index 3 is N3. N2 is not equal to N3. The second resources with the same size can correspond to different frequency locations, from the network side, more resources can be used for transmitting information, thereby improving the flexibility of resource allocation.

[0309] The first terminal device receives the second signaling indicated by the network device. In an optional manner, the second signaling indicates the value of M. The size of each candidate resource in the M candidate resources is predefined, and the size of each candidate resource in the M candidate resources is equal to or less than the maximum channel bandwidth supported by the first terminal device. For example, the size of each candidate resource in the M candidate resources is 5MHz, or 10MHz, or 20MHz, or the number of RBs corresponding to 5MHz, or the number of RBs corresponding to 10MHz, or the number of RBs corresponding to 20MHz. In another optional manner, the second signaling indicates the value of M and the size of the M candidate resources.

[0310] In a possible manner, the M offsets can be indicated by the first signaling. In another possible manner, the value of at least one of the M offsets is indicated by the first signaling, and the value of at least one of the M offsets is predefined. For example, the M offsets are 3 offsets, one of which is indicated by the first signaling, and two of which are predefined. In another possible manner, or all of the M offsets are predefined. The m th candidate bandwidth corresponds to the offset N m-1 where N m-1 is the number of RBs between the location of the first control resource set and the location of the m th candidate bandwidth, 1<=m<=M. The candidate bandwidths with the same size can correspond to different offsets, and the locations of the candidate bandwidths are different, which is beneficial to more flexible resource allocation and reduces resource congestion.

[0311] The determination manner of N and the possible values of N can refer to the methods in the above embodiments, which will not be described here.

[0312] In a possible manner, the first terminal device receives third signaling sent by the network, the third signaling indicating that the first terminal device determines the first resource from the M candidate resources, and the first terminal device determines the position of the first resource used by the first terminal device according to the position of the first control resource set and the offset corresponding to the first resource. In another possible manner, the first terminal device determines the first resource from the M candidate resources according to a predefined rule, and the first terminal device determines the position of the first resource used by the first terminal device according to the position of the first control resource set and the offset corresponding to the first resource.

[0313] For example, the position of the M candidate resources can also be determined according to the position of the first control resource set and Y offsets. The Y offsets correspond to the M candidate resources. The index of the M candidate resources can be 0, 1,..., M-1, and the index of the Y offsets can be 0, 1,..., Y-1. The M candidate resources include at least two candidate resources with different sizes but the same N, or at least two candidate resources with different sizes but the same offset N. For example, the M candidate resources include three candidate resources with an index of 1, the size of the three resources is 5MHz or the number of RBs corresponding to 5MHz, the size of the candidate resource with an index of 2 is 20MHz or the number of RBs corresponding to 20MHz, and the size of the candidate resource with an index of 3 is 20MHz or the number of RBs corresponding to 20MHz. The offset of the candidate resource with an index of 1 is N1, the offset of the third bandwidth with an index of 2 is N1, and the offset of the third resource with an index of 3 is N2, where N1 is not equal to N2. For candidate resources with different sizes but the same N value, the first terminal device can transmit information through the candidate resource with an index of 1 or the candidate resource with an index of 2 in different scenarios. The smaller candidate resource can be used in a scenario where the first terminal device needs to save power, which is conducive to reducing the power consumption of the first terminal device. The candidate resources with different positions but the same size or different sizes but the same position can be selected, which expands the selection range of the first resource, is conducive to flexible allocation of resources, and reduces resource congestion.

[0314] The first terminal device receives second signaling indicated by the network device. In an optional manner, the second signaling indicates the value of M. The size of each candidate resource in the M candidate resources is predefined, and the size of each candidate resource in the M candidate resources is equal to or less than the maximum channel resource supported by the first terminal device. For example, the size of each candidate resource in the M candidate resources is 5MHz, or 10MHz, or 20MHz, or the number of RBs corresponding to 5MHz, or the number of RBs corresponding to 10MHz, or the number of RBs corresponding to 20MHz. In another optional manner, the second signaling indicates the value of M and the size of the M candidate resources.

[0315] In a possible manner, at least one of the Y offsets corresponds to more than one candidate resource, i.e., candidate bandwidths of different sizes can have the same location. For example, 1 of the Y offsets corresponds to 2 candidate resources, and the offsets of the 2 candidate resources are the same, and the sizes of the candidate resources can be different. The values of the Y offsets are indicated by the first signaling. In another possible manner, at least one of the Y offsets has a value indicated by the first signaling, and at least one of the Y offsets has a value predefined. For example, the Y offsets are 3 offsets, 1 of which is indicated by the first signaling, and 2 of which are predefined. In another possible manner, all of the Y offsets are predefined. The value of N can be determined or indicated by the above method, which will not be described herein.

[0316] In a possible manner, the first terminal device receives third signaling indicated by the network, the third signaling indicating a first resource of the M candidate resources, and the first terminal device determines the location of the first resource of the first terminal device according to the location of the first control resource set and the offset corresponding to the first resource. In another possible manner, the first terminal device determines the first resource in the M candidate resources according to a predefined rule, and the first terminal device determines the location of the first resource according to the location of the first control resource set and the offset corresponding to the first resource.

[0317] The first signaling, the second signaling, and the third signaling can be different fields in the same signaling, or the first signaling, the second signaling, and the third signaling are different signals. For example, the first signaling can be SIB1, PDCCH scheduling SIB1, PDCCH scheduling Msg2, Msg2, PDCCH scheduling Msg3, and PDCCH scheduling Msg4. The second signaling can be SIB1, PDCCH scheduling SIB1, PDCCH scheduling Msg2, Msg2, PDCCH scheduling Msg3, and PDCCH scheduling Msg4. The third signaling can be SIB1, PDCCH scheduling SIB1, PDCCH scheduling Msg2, Msg2, PDCCH scheduling Msg3, and PDCCH scheduling Msg4. Or at least two of the first signaling, the second signaling, and the third signaling are different signals. For example, the first signaling and the second signaling are SIB1, and the third signaling is PDCCH scheduling Msg2 or Msg2. The third signaling can indicate the first resource for receiving Msg2 and / or Msg4, and / or the first resource for transmitting Msg3. Or at least two of the first signaling, the second signaling, and the third signaling are different fields in the same signaling. For example, the first signaling and the second signaling are SIB1, and the third signaling is PDCCH scheduling Msg4. The third signaling can indicate the first resource for receiving Msg4. The present application does not limit this.

[0318] In addition, since the Msg4 is terminal device-specific information, the network device sends the Msg4 to each terminal device, and the occupied resources are more, and therefore, the network device indicates the resources or resource positions of the terminal device receiving the Msg4, so as to avoid resource congestion.

[0319] It should be understood that the candidate bandwidth has the same meaning as the candidate resource.

[0320] In a possible implementation, the size of each candidate resource in the plurality of candidate resources is greater than or equal to the size of the first control resource, or the frequency range of each candidate resource in the plurality of candidate resources includes the frequency range of the first control resource, the plurality of candidate resources can be an initial DL BWP, and the first control resource can be a CORESET 0, as shown in (a) of FIG. 1. Figure 6 As shown in (a) of FIG. 1, the plurality of candidate resources can include the frequency range of the first control resource in the frequency range, or as shown in (b) of FIG. 1, the plurality of candidate resources can contain the frequency corresponding position range of the first control resource in the frequency corresponding position range. Figure 7 From the perspective of the network device, the network device can configure a plurality of candidate bandwidths for the first terminal device, and more resources can be used for downlink data transmission, thereby improving the flexibility of resource allocation and avoiding resource congestion. From the perspective of the terminal device, the terminal device has a plurality of candidate bandwidths that can be used for transmitting information, and the terminal device can determine the position of the first resource according to a rule, thereby improving the flexibility of the terminal device in transmitting information.

[0321] After the first terminal device determines the position of the first resource, the first terminal device receives downlink information through the first resource. The first control resource can be a CORESET 0, and the first resource can be an initial DL BWP.

[0322] In a possible implementation, the CORESET 0 is contained in the initial DL BWP. When the RRC link of the UE has not been established, the UE needs to receive, in the CORESET 0: a PDCCH scheduling a SIB1, a PDSCH carrying the SIB1, a PDCCH scheduling an SI, a PDSCH carrying the SI, a PDCCH scheduling a Msg2, a PDSCH carrying the Msg2, a PDCCH scheduling a Msg3, a PDCCH scheduling a Msg4, and a PDSCH carrying the Msg4. Because many channels are transmitted in the CORESET 0, the resource occupation of the CORESET 0 is more, which can cause the allocation of the CORESET 0 resources to be limited or the use of the CORESET 0 resources to be congested. In particular, when the number of UEs is large, the allocation of the CORESET 0 resources is more limited or the use of the CORESET 0 resources is more congested.

[0323] If the downlink data is not confined to be transmitted in the CORESET 0, but transmitted in the initial DL BWP, there are more resources for the transmission of the downlink data, which can reduce the resource occupation of the CORESET 0 and reduce congestion. From the network side, there are more resources for the transmission of the downlink data, thereby improving the flexibility of resource allocation. The downlink data can be one or more of the system information, the random access response Msg2, the contention resolution message Msg4, and the paging message. For the control channel, the UE still receives the control channel in the CORESET 0.

[0324] It should be understood that the downlink data can be received on the first resource, or the downlink control information can be received on the first resource, or both the downlink data and the downlink control information can be received on the first resource. The downlink control information can include one or more of the control information for scheduling the system information, the random access response message, the contention resolution message, and the paging message. The downlink data can include one or more of the PDSCH carrying the system information block 1, the PDSCH carrying the system information, the PDSCH carrying the Msg2, and the PDSCH carrying the Msg4.

[0325] In one possible implementation, the downlink data and the downlink control information are received in the first resource without establishing a radio resource control (RRC) connection, wherein the first resource is an initial downlink BWP.

[0326] In another possible implementation, the first resource has no overlapping resource with the first control resource set.

[0327] In another possible implementation, the downlink control information is received in the first control resource set and the data is received in a second bandwidth without establishing a radio resource control (RRC) connection, wherein the second bandwidth includes RBs other than the RBs included in the first resource and the RBs included in the first control resource set, as shown in Figure 8 i.e., the first resource has an overlapping part with the first control resource set, and the data is received in the non-overlapping part.

[0328] In another possible implementation, the downlink control information is received in the first control resource set and the data is received in the first resource or in a second bandwidth without establishing a radio resource control (RRC) connection.

[0329] For example, the information received in the first resource or the second bandwidth can be determined according to a pre-defined threshold value of the bandwidth of the first resource or according to the transmission content.

[0330] In a possible implementation, the downlink information, taking data as an example, can be received in the first resource or the second bandwidth by determining whether the bandwidth of the first control resource set is greater than or equal to a threshold value. For example, when the bandwidth of the first control resource set is greater than or equal to the threshold value, the first terminal device receives data in the first resource; and when the bandwidth of the first control resource set is less than the threshold value, data is received in the second bandwidth.

[0331] For example, the threshold value is 10 MHz or the number of RBs corresponding to 10 MHz. When the bandwidth of the first control resource set is greater than or equal to the threshold value, the frequency range of the second bandwidth is relatively small, the resource allocation of data is limited, and therefore data is received in the first resource; and when the bandwidth of the first control resource set is less than the threshold value, the frequency range of the second bandwidth is relatively large, and therefore data is received in the second bandwidth.

[0332] The downlink information is received in the first resource or the second bandwidth by determining the transmission content. For example, SIB1 and / or Msg2 are received in the first resource, and Msg4 is received in the second bandwidth. Since Msg4 is terminal device-specific information, the network device transmits Msg4 for each terminal device, and therefore occupies a large amount of resources. Therefore, the network device transmits Msg4 in the second bandwidth, and the first terminal device receives Msg4 in the second bandwidth, so that resource congestion of the first control resource set can be avoided.

[0333] For example, the frequency range in which the downlink information is received in the first resource or the first control resource set can also be indicated by signaling. For example, the resource range of the transmission after SIB1 is indicated in SIB1, or the resource range of the current transmission is indicated in the downlink control information corresponding to the current transmission.

[0334] In another possible implementation, the downlink data is received in the first resource, and the resource occupied by the downlink information needs to be indicated in the frequency range of the first resource.

[0335] The bandwidth of the first resource does not exceed the maximum channel bandwidth of the first terminal device. Taking 20 MHz as an example of the maximum channel bandwidth of the first terminal device, as shown in Table 1 and Table 2, the first row of the table is the subcarrier spacing of CORESET 0, the second row is the bandwidth (number of RBs) corresponding to different subcarrier spacings of the maximum channel bandwidth of the first terminal device and the number of bits required for frequency resource allocation, the third row is the bandwidth (number of RBs) of CORESET 0 and the number of bits specified in the existing protocol corresponding to the subcarrier spacing, and the fourth row is the maximum number of additional bits required in the embodiment. The calculation method of the maximum number of additional bits required can be the number of bits in the second row minus the number of bits in the third row.

[0336] Table 1

[0337]

[0338]

[0339] Table 2

[0340]

[0341] For example, the available bits of the DCI under different scrambling modes are used to carry the bits that need to be added. The DCI under different scrambling modes includes: P-RNTI scrambled DCI; SI-RNTI scrambled DCI; RA-RNTI scrambled DCI; and TC-RNTI scrambled DCI.

[0342] The available bits of the DCI under different scrambling modes are as follows: 6 bits of the P-RNTI scrambled DCI are free; 15 bits of the SI-RNTI scrambled DCI are available; 16 bits of the RA-RNTI scrambled DCI are available; and 2 bits of the TC-RNTI scrambled DCI are available.

[0343] The available bits of the DCI under different scrambling modes, and the predefined resource allocation granularity can be used to allocate the resources of the downlink data.

[0344] For example, the predefined resource allocation granularity can be N RBs, where N is a positive integer. The predefined resource allocation granularity can be determined according to the available bits and / or the maximum number of bits that need to be added. For example, the resource allocation granularity corresponding to the maximum number of bits that need to be added of 4 can be 4 RBs.

[0345] The embodiments of the present application can avoid frequent frequency tuning between uplink transmission and downlink reception, and / or avoid frequent frequency tuning between downlink reception and uplink transmission, increase the available symbols for data transmission, improve resource utilization efficiency, reduce the complexity of UE implementation, and reduce the power consumption of the UE. The network device can configure multiple DL / UL BWPs, each of which includes a CORESET 0. From the network side, more resources can be used for downlink / uplink transmission, thereby improving the flexibility of resource allocation.

[0346] Another embodiment of the present application provides a method for transmitting information, as shown in Figure 9

[0347] 801: The first terminal device transmits first uplink information in a first uplink bandwidth;

[0348] 802: The first terminal device receives first downlink information in a first downlink bandwidth, and the transmission of the first uplink information is immediately prior to the reception of the first downlink information. Immediately prior means that there is no other uplink / downlink information between the first downlink information and the first uplink information.

[0349] ​The last time unit for sending the first uplink information is time unit n1, and the starting time unit for monitoring the first downlink information is time unit m1, as shown in Figure 10 The minimum interval between the time unit n1 and the time unit m1 is k time units, k is greater than w, w is the minimum number of time units between the last time unit n2 for sending second uplink information by the second terminal device and the starting time unit m2 for monitoring second downlink information, and the sending of the second uplink information immediately precedes the receiving of the second downlink information, m1, m2, n1, n2, k, and w are positive integers, the first terminal device is a first type terminal device, and the second terminal device is a second type terminal device.

[0350] The frequency range corresponding to the frequency range of the first uplink bandwidth and the frequency range of the first downlink bandwidth exceeds the maximum channel bandwidth of the UE.

[0351] It should be understood that the first terminal device can send uplink information through the UL BWP and receive downlink information through the CORESETa. For example, the CORESETa can be the CORESET 0.

[0352] It should be understood that the sending of the first uplink information immediately precedes the receiving of the first downlink information means that there is no sending of other uplink information and no receiving of other downlink information between the sending of the first uplink information and the receiving of the first downlink information, and the sending of the second uplink information immediately precedes the receiving of the second downlink information means that there is no sending of other uplink information and no receiving of other downlink information between the receiving of the second downlink information and the sending of the second uplink information.

[0353] The first downlink information is the first information exchanged between the network device and the first terminal device after the first uplink information; similarly, the second uplink information is the first information exchanged between the network device and the first terminal device after the second downlink information.

[0354] The last time unit means the last time unit in the time unit occupied by the sending of the uplink information, or the last time unit in the time unit occupied by the receiving of the downlink information.

[0355] The starting time unit means the first time unit in the time unit occupied by the sending of the uplink information, or the first time unit in the time unit occupied by the receiving of the downlink information.

[0356] The first uplink bandwidth can be understood as the UL BWP, and the first downlink bandwidth can be understood as the DL BWP. The positional relationship of UL / DL BWP can be, for example, that is, UL BWP and DL BWP include CORESET 0, that is, the frequency range of UL BWP completely covers the frequency range of CORESET 0.

[0357] Specifically, if the next transmission after the first terminal device sends uplink information via UL BWP is to receive downlink information at CORESET 0, then the first terminal device will receive downlink information at CORESET 0 at least one time interval after sending uplink information via UL BWP.

[0358] Among them, the frequency range of CORESET 0 and the frequency range of UL BWP correspond to a frequency range that exceeds the maximum channel bandwidth of the first terminal device.

[0359] Specifically, the time unit can be any of the following: subframe, radio frame, time slot, mini-time slot, symbol, microsecond, millisecond, or second. For example, if the time unit is a symbol, time unit n is the last symbol n of the first uplink information, and time unit m is the first symbol m of the first downlink information. For example, a minimum interval of k time units can be k subframes, k radio frames, k time slots, k mini-time slots, k symbols, k microseconds, k milliseconds, or k seconds. For example, q time units can be q subframes, q radio frames, q time slots, q mini-time slots, q symbols, q microseconds, q milliseconds, or q seconds.

[0360] For example, the first uplink information can be a random access sequence, and the first downlink information can be a DCI for scheduling a random access response. The last time unit for sending the random access sequence is time unit n1, that is, the last symbol of the random access opportunity in which the random access sequence is sent is time unit n1. The starting time unit for monitoring the first downlink information is time unit m1, or the starting symbol position for monitoring the DCI for scheduling a random access response is time unit m1, or the starting symbol position of the RAR window configured by the higher layer is time unit m1.

[0361] like Figure 12 As shown, the minimum interval between time unit n1 and time unit m1 is k time units, and k is greater than w.

[0362] It should be understood that the starting time unit for monitoring the first downlink information is the time unit at which the DCI for scheduling random access response begins to be detected, even though the DCI may not have been successfully detected yet.

[0363] In one implementation, w is one symbol, and the time length of k time units is greater than one symbol.

[0364] In an embodiment, k is 2 symbols more than w, i.e., k time units are 3 symbols. Alternatively, k is the number of time units corresponding to the first time interval at different subcarrier spacing. For example, the first time interval is 140 microseconds, and the number of symbols corresponding to 140 microseconds is 2 symbols when the subcarrier spacing is 15 KHz; for example, the number of symbols corresponding to 140 microseconds is 4 symbols when the subcarrier spacing is 30 KHz. The 2 symbols, or the first time interval, are used for the first terminal device to tune from the first uplink bandwidth to the first downlink bandwidth, where tuning refers to adjusting the operating frequency of the first terminal device; the 2 symbols, or the first time interval, can ensure that the first terminal device successfully receives the first downlink information at the first downlink bandwidth, avoiding power loss due to failure to receive the first downlink information.

[0365] In an embodiment, k is the number of time units corresponding to the first time interval at different subcarrier spacing. For example, the first time interval is 140 microseconds, and the number of symbols corresponding to 140 microseconds is 2 symbols when the subcarrier spacing is 15 KHz; for example, the number of symbols corresponding to 140 microseconds is 4 symbols when the subcarrier spacing is 30 KHz. The first time interval is used for the first terminal device to tune from the first uplink bandwidth to the first downlink bandwidth, and the first time interval can ensure that the first terminal device successfully receives the first downlink information at the first downlink bandwidth, avoiding power loss due to failure to receive the first downlink information.

[0366] In an embodiment, k is the number of time units corresponding to the first time interval, and the first time interval includes q time units. For example, q time units are 2 symbols, and the first time interval is 210 microseconds, which includes q time units. The q time units are extra processing time caused by switching from the first uplink bandwidth to the first downlink bandwidth, and the first time interval is defined to include the q time units. The first time interval is used for the first terminal device to tune from the first uplink bandwidth to the first downlink bandwidth; the first time interval can ensure that the first terminal device successfully receives the first downlink information at the first downlink bandwidth, avoiding power loss due to failure to receive the first downlink information. The q time units are used for processing time required for tuning, and the first time interval includes the q time units to meet the processing time required for tuning, one of the tuning time, or to meet the sum of the processing time required for tuning and the tuning time.

[0367] In an embodiment, k is the sum of the number of time units corresponding to the first time interval at different subcarrier spacings and q time units. For example, the first time interval is 140 microseconds, and when the subcarrier spacing is 15 KHz, the number of symbols corresponding to 140 microseconds is 2 symbols; for example, when the subcarrier spacing is 30 KHz, the number of symbols corresponding to 140 microseconds is 4 symbols. The q time units are 2 symbols. The first time interval is used for the first terminal device to frequency tune from the first uplink bandwidth to the first downlink bandwidth; the first time interval can ensure that the first terminal device successfully receives the first downlink information at the first downlink bandwidth, avoiding power loss caused by failure to receive the first downlink information. The q time units are used for the processing time required for frequency tuning, and the sum of the first time interval and the q time units meets the frequency tuning time and processing time required for frequency tuning.

[0368] By setting the time interval k, and k is greater than w, the first terminal device avoids failing to successfully receive the DCI of the scheduling random access response due to frequency tuning, causing the random access process to fail, and the power consumption loss caused by the first terminal device reinitiating the random access.

[0369] For example, the first uplink information can be uplink data scheduled by uplink grant carried in the random access response message, i.e., Msg3. In this example, Msg3 can be the first transmission of Msg3, or a retransmission (retransmission after the first transmission fails), or a repeated transmission (transmitted multiple times with the same content). Take Msg3 as an example for description. The first downlink information can be scheduling information DCI of the contention resolution message responding to Msg3. The last time unit for sending Msg3 is time unit n1, or the last symbol for sending Msg3 is time unit n1, or the last symbol of the PUSCH carrying Msg3 is time unit n1. The starting time unit for monitoring the first downlink information is time unit m1, or the time unit for starting the contention resolution timer is time unit m1. The minimum interval between time unit n1 and time unit m1 is k time units, and k is greater than w.

[0370] It should be understood that the starting time unit for monitoring the first downlink information is the time unit for starting to detect the DCI of the scheduling contention resolution message, at which time the DCI can not have been successfully detected.

[0371] In an embodiment, w is 0 symbols, and the time length of k time units is greater than 0 symbols.

[0372] In an embodiment, k is 2 symbols more than w, i.e., k time units are 2 symbols. In an embodiment, k is the number of time units corresponding to the first time interval at different subcarrier spacings. For example, the first time interval is 140 microseconds, and the subcarrier spacing is 15 KHz, then the number of symbols corresponding to 140 microseconds is 2 symbols; for example, the subcarrier spacing is 30 KHz, then the number of symbols corresponding to 140 microseconds is 4 symbols. Alternatively, k is 2 symbols more than the number of time units corresponding to the first time interval at different subcarrier spacings. For example, the first time interval is 140 microseconds, and the subcarrier spacing is 15 KHz, then the number of symbols corresponding to 140 microseconds is 2 symbols; for example, the subcarrier spacing is 30 KHz, then the number of symbols corresponding to 140 microseconds is 4 symbols. The 2 symbols, or the first time interval, are used for the first terminal device to tune from the first uplink bandwidth to the first downlink bandwidth; the 2 symbols, or the first time interval, can ensure that the first terminal device successfully receives the first downlink information at the first downlink bandwidth, and avoid power loss caused by reinitiating the access process due to failure to receive the first downlink information.

[0373] In an embodiment, k is the number of time units corresponding to the first time interval, and the first time interval includes q time units. For example, q time units are 2 symbols, and the first time interval is 210 microseconds, and 210 microseconds includes q time units. The q time units are extra processing time caused by switching from the first uplink bandwidth to the first downlink bandwidth, and the first time interval is defined to include q time units. The first time interval is used for the first terminal device to tune from the first uplink bandwidth to the first downlink bandwidth; the first time interval can ensure that the first terminal device successfully receives the first downlink information at the first downlink bandwidth, and avoid power loss caused by reinitiating the access process due to failure to receive the first downlink information. The q time units are used for processing time required for tuning, and the first time interval includes q time units to meet the processing time required for tuning, one of the tuning time, or to meet the sum of the processing time required for tuning and the tuning time.

[0374] In an embodiment, k is the sum of the number of time units corresponding to the first time interval at different subcarrier spacings and q time units. For example, the first time interval is 140 microseconds, and the number of symbols corresponding to 140 microseconds is 2 symbols when the subcarrier spacing is 15 KHz; for example, the number of symbols corresponding to 140 microseconds is 4 symbols when the subcarrier spacing is 30 KHz. The q time units are 2 symbols. The first time interval is used for the first terminal device to tune from the first uplink bandwidth to the first downlink bandwidth; the first time interval can ensure that the first terminal device successfully receives the first downlink information at the first downlink bandwidth, avoiding power loss caused by reinitiating the access process due to failure to receive the first downlink information. The q time units are used for the processing time required for tuning, and the sum of the first time interval and the q time units meets the tuning time and processing time required for tuning.

[0375] By setting the time interval k, and k is greater than w, the first terminal device avoids failing to successfully receive the scheduling information DCI of the contention resolution message due to tuning, causing the random access process to fail, and the power loss caused by the first terminal device reinitiating the random access.

[0376] It should be understood that the first time interval is predefined, or the first time interval is reported by the terminal device, or the network device indicates one value of a plurality of first time intervals reported by the terminal capability. The value of the first time interval is the same as that of an element in the third set; the third set includes at least one value in {35 microseconds, 140 microseconds, 210 microseconds, 300 microseconds, 500 microseconds}, or the third set includes at least one value in {the number of symbols corresponding to 35 microseconds, the number of symbols corresponding to 140 microseconds, the number of symbols corresponding to 210 microseconds, the number of symbols corresponding to 300 microseconds, the number of symbols corresponding to 500 microseconds}.

[0377] The first time interval can be bound to the first terminal device, and different terminal devices in the first type of terminal device can predefine different values of the first time interval. For example, the first terminal device can report two values, and the network device indicates the first time interval used by signaling. The q time units can be a positive integer, for example, q can be 2.

[0378] It should be understood that the corresponding time interval can also be set between adjacent received downlink information and transmitted uplink information, as shown in Figure 13

[0379] 1: The first terminal device receives second downlink information in the first downlink bandwidth.

[0380] ​2: The first terminal device transmits the second uplink information in the first uplink bandwidth, and the reception of the second downlink information immediately precedes the transmission of the second uplink information. Immediately precedes means that there is no other uplink or downlink information between the second downlink information and the first uplink information.

[0381] For example, the second downlink information can be an uplink grant carried in a random access response message, and the second uplink information can be uplink data scheduled by the uplink grant carried in the random access response message, i.e., Msg3. The last time unit for receiving the uplink grant carried in the random access response message is time unit s1, i.e., the last symbol of the PDSCH carrying the random access response is time unit s1. The starting time unit for transmitting Msg3 is time unit t1, or the first symbol of the PUSCH carrying Msg3 is time unit t1. The minimum interval between time unit s1 and time unit t1 is r time units, and r is greater than p. p = N T,1 +N T,2 +0.5ms, N T,1 is a time length corresponding to a PDSCH processing time, T,2 is a time length corresponding to a PUSCH preparation time. The PDSCH processing time and the PUSCH preparation time can be processing times corresponding to terminal device processing capability 1 or terminal device processing capability 2.

[0382] In an embodiment, the time length of r time units is greater than p.

[0383] In an embodiment, r time units are 2 symbols added on the basis of p, or a time length corresponding to 2 symbols. The 2 symbols are used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth; the 2 symbols can ensure that the first terminal device successfully receives the second uplink information in the first uplink bandwidth, and avoid power loss caused by reinitiating an access process due to failure to receive the second uplink information.

[0384] In an embodiment, r is a first time interval added on the basis of p, or a number of time units corresponding to the first time interval when different subcarrier spacings are used. For example, when the first time interval is 140 microseconds and the subcarrier spacing is 15 KHz, the number of symbols corresponding to 140 microseconds is 2 symbols; for example, when the subcarrier spacing is 30 KHz, the number of symbols corresponding to 140 microseconds is 4 symbols. The first time interval is used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth, and the first time interval can ensure that the first terminal device successfully receives the second uplink information in the first uplink bandwidth, and avoid power loss caused by reinitiating an access process due to failure to receive the second uplink information.

[0385] In an embodiment, r is greater than p by a number of time units corresponding to a first time interval, and the first time interval includes q time units. For example, the q time units are 2 symbols, and the first time interval is 210 microseconds, which includes the q time units. The q time units are an extra processing time caused by switching from the first downlink bandwidth to the first uplink bandwidth, and the first time interval is defined to include the q time units. The first time interval is used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth, and the first time interval ensures that the first terminal device successfully receives the second uplink information in the first uplink bandwidth, avoiding power loss caused by reinitiating the access process due to failure to receive the second uplink information. The q time units are used for processing time required for tuning, and the first time interval including the q time units satisfies the processing time required for tuning, one of the tuning time, or the sum of the processing time required for tuning and the tuning time.

[0386] In an embodiment, r is greater than p by a sum of a number of time units corresponding to a first time interval in different subcarrier spacings and q time units. For example, the first time interval is 140 microseconds, and the number of symbols corresponding to 140 microseconds is 2 symbols when the subcarrier spacing is 15 KHz; for example, the number of symbols corresponding to 140 microseconds is 4 symbols when the subcarrier spacing is 30 KHz. The q time units are 2 symbols. By setting the time interval r, and r is greater than p, the first terminal device is prevented from failing to successfully send Msg3 due to tuning, causing the random access process to fail, and power consumption loss caused by the first terminal device reinitiating the random access. The first time interval is used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth, and the first time interval ensures that the first terminal device successfully receives the second uplink information in the first uplink bandwidth, avoiding power loss caused by reinitiating the access process due to failure to receive the second uplink information. The q time units are used for processing time required for tuning, and the sum of the first time interval and the q time units satisfies the tuning time and the processing time required for tuning.

[0387] For example, the second downlink information can be a first downlink control channel, and the second uplink information can be uplink data scheduled by the downlink control information, such as retransmission of Msg3. The last time unit of receiving the first downlink control channel is time unit s1, i.e., the last symbol of the first downlink control channel is time unit s1. The starting time unit of sending the retransmission of Msg3 is time unit t1, or the first symbol of the PUSCH carrying the retransmission of Msg3 is time unit t1. The minimum interval between time unit s1 and time unit t1 is r time units, and r is greater than p. p = N2, and N2 is the number of symbols required for PUSCH preparation time. The PUSCH preparation time can be a processing time corresponding to the first terminal device processing capability 1 or the first terminal device processing capability 2.

[0388] In an embodiment, the time length of the r time units is greater than the p.

[0389] In an embodiment, the r time units are 2 symbols added to the p, or the time length corresponding to 2 symbols. The 2 symbols are used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth; the 2 symbols can ensure that the first terminal device successfully receives the second uplink information in the first uplink bandwidth, and avoid power loss caused by reinitiating the access process due to failure of receiving the second uplink information.

[0390] In an embodiment, the r time units are a first time interval added to the p, or the number of time units corresponding to the first time interval in different subcarrier spacings. For example, the first time interval is 140 microseconds, and the number of symbols corresponding to 140 microseconds is 2 symbols when the subcarrier spacing is 15 KHz; for example, the number of symbols corresponding to 140 microseconds is 4 symbols when the subcarrier spacing is 30 KHz. The first time interval is used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth; the first time interval can ensure that the first terminal device successfully receives the second uplink information in the first uplink bandwidth, and avoid power loss caused by reinitiating the access process due to failure of receiving the second uplink information.

[0391] In an embodiment, the r is greater than the p by the number of time units corresponding to the first time interval, and the first time interval includes q time units. For example, the q time units are 2 symbols, the first time interval is 210 microseconds, and the 210 microseconds include the q time units. The q time units are extra processing time caused by switching from the first uplink bandwidth to the first downlink bandwidth, and the first time interval includes the q time units. The first time interval is used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth; the first time interval can ensure that the first terminal device successfully receives the second uplink information in the first uplink bandwidth, and avoid power loss caused by reinitiating the access process due to failure of receiving the second uplink information. The q time units are used for processing time required for tuning, and the first time interval includes the q time units to meet the processing time required for tuning, one of the tuning time, or to meet the sum of the processing time required for tuning and the tuning time.

[0392] In an embodiment, r is greater than p, and the first time interval corresponds to a sum of a number of time units corresponding to different subcarrier spacings and q time units. For example, the first time interval is 140 microseconds, and the number of symbols corresponding to 140 microseconds is 2 symbols when the subcarrier spacing is 15 KHz; for example, the number of symbols corresponding to 140 microseconds is 4 symbols when the subcarrier spacing is 30 KHz. The q time units are 2 symbols. By setting the time interval r, and r is greater than p, the first terminal device is prevented from failing to successfully transmit the retransmission of Msg3 due to frequency adjustment, causing the random access process to fail, and the power consumption loss caused by the first terminal device reinitiating the random access. The first time interval is used for the first terminal device to adjust the frequency from the first downlink bandwidth to the first uplink bandwidth; the first time interval can ensure that the first terminal device successfully receives the second uplink information in the first uplink bandwidth, and avoids the power consumption caused by reinitiating the access process due to the failure to receive the second uplink information. The q time units are used for the processing time required for frequency adjustment, and the sum of the first time interval and the q time units meets the frequency adjustment time and the processing time required for frequency adjustment.

[0393] For example, the second downlink information can be a contention resolution message, and the second uplink information can be HARQ feedback corresponding to the contention resolution message. The last time unit of receiving the contention resolution message is time unit s1, that is, the last symbol of the PDSCH carrying the contention resolution message is time unit s1. The first symbol of the PUCCH carrying the HARQ feedback is time unit t1. The minimum interval between time unit s1 and time unit t1 is r time units, and r is greater than p. p = N T,1 + 0.5 ms, N T,1 is the time length corresponding to the PDSCH processing time. The PUSCH preparation time can be the processing time corresponding to terminal device processing capability 1 or terminal device processing capability 2.

[0394] In an embodiment, the time length of the r time units is greater than p.

[0395] In an embodiment, the r time units are 2 symbols or the time length corresponding to 2 symbols based on p. The 2 symbols are used for the first terminal device to adjust the frequency from the first downlink bandwidth to the first uplink bandwidth; the 2 symbols can ensure that the first terminal device successfully receives the second uplink information in the first uplink bandwidth, and avoids the power consumption caused by reinitiating the access process due to the failure to receive the second uplink information.

[0396] In an embodiment, r is the first time interval increased on the basis of p, or the number of time units corresponding to the first time interval at different subcarrier spacings. For example, the first time interval is 140 microseconds, and the number of symbols corresponding to 140 microseconds is 2 symbols when the subcarrier spacing is 15 KHz; for example, the number of symbols corresponding to 140 microseconds is 4 symbols when the subcarrier spacing is 30 KHz. The first time interval is used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth; the first time interval can ensure that the first terminal device successfully receives the second uplink information at the first uplink bandwidth, avoiding power loss caused by reinitiating the access process due to failure to receive the second uplink information.

[0397] In an embodiment, r is the number of time units corresponding to the first time interval increased on the basis of p, and the first time interval includes q time units. For example, the q time units are 2 symbols, and the first time interval is 210 microseconds, which includes the q time units. The q time units are the additional processing time caused by switching from the first uplink bandwidth to the first downlink bandwidth, and the first time interval is defined to include the q time units. The first time interval is used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth; the first time interval can ensure that the first terminal device successfully receives the second uplink information at the first uplink bandwidth, avoiding power loss caused by reinitiating the access process due to failure to receive the second uplink information. The q time units are used for the processing time required for tuning, and the first time interval including the q time units meets the processing time required for tuning, one of the tuning time, or the sum of the processing time required for tuning and the tuning time.

[0398] In an embodiment, r is the sum of the number of time units corresponding to the first time interval at different subcarrier spacings and q time units, which is greater than p. For example, the first time interval is 140 microseconds, and the number of symbols corresponding to 140 microseconds is 2 symbols when the subcarrier spacing is 15 KHz; for example, the number of symbols corresponding to 140 microseconds is 4 symbols when the subcarrier spacing is 30 KHz. The q time units are 2 symbols. By setting the time interval r, which is greater than p, the first terminal device can avoid failing to successfully feed back HARQ due to tuning, causing the random access process to fail, and power loss caused by the first terminal device reinitiating the random access. The first time interval is used for the first terminal device to tune from the first downlink bandwidth to the first uplink bandwidth; the first time interval can ensure that the first terminal device successfully receives the second uplink information at the first uplink bandwidth, avoiding power loss caused by reinitiating the access process due to failure to receive the second uplink information. The q time units are used for the processing time required for tuning, and the sum of the first time interval and the q time units meets the tuning time and the processing time required for tuning.

[0399] It should be understood that the first time interval can be predefined, or the first time interval can be reported by the terminal device, or the network device indicates one value of a plurality of first time intervals reported by the terminal device. The first time interval is the same as the value of one element in the third set, and the third set includes at least one value in {35 microseconds, 140 microseconds, 210 microseconds, 300 microseconds, 500 microseconds}, or the third set includes at least one value in {the number of symbols corresponding to 35 microseconds, the number of symbols corresponding to 140 microseconds, the number of symbols corresponding to 210 microseconds, the number of symbols corresponding to 300 microseconds, the number of symbols corresponding to 500 microseconds}.

[0400] The first time interval can be bound to the first terminal device, and different terminal devices in the first type of terminal device can have different predefined values of the first time interval. For example, the first terminal device can report two values, and the network device indicates the used first time interval through signaling.

[0401] It should be understood that the network device can indicate the first time interval to the terminal device, or indicate an additional time interval, and the first time interval can be the sum of w and the additional time interval.

[0402] The network device can also indicate a specific value of the first time interval or the additional time interval, or indicate a selectable value of the time interval or the additional time interval, which is not limited in the present application.

[0403] It should be understood that the first time interval or the selectable range of the first time interval of the first terminal device, or the additional time interval or the selectable range of the additional time interval, can also be predefined, which is not limited in the present application.

[0404] It should also be understood that in the complete random access process, each switching has a certain time interval, and the time interval can be the first time interval or different time intervals, which is not limited in the present application.

[0405] The embodiment adds the switching time in the protocol to ensure that the first terminal device can successfully receive the downlink information and send the uplink information, ensure that the initial access process is successfully completed, and save the UE energy consumption to a certain extent.

[0406] Each embodiment described in the present document can be an independent scheme, or can be combined according to the inherent logic, and these schemes all fall within the protection scope of the present application.

[0407] In the embodiments of the present application, the method provided by the embodiments of the present application is introduced from the perspective of interaction between each device. In order to realize each function in the method provided by the embodiments of the present application, the network device or the terminal device can include a hardware structure and / or a software module, and each function is realized in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a certain 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 of the technical solution and the design constraint conditions.

[0408] The division of the modules in the embodiments of the present application is illustrative, and is only a logical functional division. In actual implementation, another division manner can be used. In addition, each functional module in each embodiment of the present application can be integrated in one processor, or can be physically separated, or two or more modules can be integrated in one module. The integrated module can be realized in the form of hardware or in the form of a software functional module.

[0409] As shown in the above concept, as Figure 13 to Figure 14 shown, the embodiments of the present application also provide an apparatus 1300 for realizing the functions of the network device or the terminal device in the above method. For example, the apparatus can be a software module or a chip system. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. The apparatus 1300 can include a processing unit 1310 and a communication unit 1320.

[0410] In the embodiments of the present application, the communication unit can also be referred to as a transceiver unit, and can include a sending unit and / or a receiving unit, which are respectively used to perform the steps of sending and receiving of the network device or the terminal device in the above method embodiments.

[0411] In the following, the communication apparatus provided by the embodiments of the present application will be described in detail. Figure 2 to 12 It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments, and therefore, the content not described in detail can be referred to the above method embodiments, and will not be described here for brevity.

[0412] The communication unit can also be referred to as a transceiver, a transceiver, a transceiver device, etc. The processing unit can also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the device in the communication unit 1320 for realizing the receiving function can be regarded as a receiving unit, and the device in the communication unit 1320 for realizing the sending function can be regarded as a sending unit, that is, the communication unit 1320 includes a receiving unit and a sending unit. The communication unit can also be referred to as a transceiver, a transceiver, or an interface circuit, etc. The receiving unit can also be referred to as a receiver, a receiver, or a receiving circuit, etc. The sending unit can also be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0413] The communication apparatus 1300 performs the functions of the first terminal device in the flowcharts shown in any of the above embodiments when: Figure 2 to 12 The processing unit is configured to determine the resource for transmitting the information according to the downlink information of the network device or according to a predefinition.

[0414] The communication unit is configured to receive and send the information.

[0415] The communication unit is configured to receive and send the information.

[0416] The communication apparatus 1300 performs the functions of the network device in the flowcharts shown in any of the above embodiments when: Figure 2 to 12 The processing unit is configured to configure the resource or determine the resource according to a predefinition.

[0417] The communication unit is configured to receive and send the information.

[0418] The communication unit is configured to receive and send the information.

[0419] The above is only an example, and the processing unit 1310 and the communication unit 1320 can also perform other functions. For more details, please refer to the related description in the method embodiments or other method embodiments, which will not be repeated here. Figure 14 As shown in the above method embodiments, the apparatus 1400 can be a terminal device or a network device.

[0420] The apparatus shown in the above method embodiments can be a hardware circuit implementation of the apparatus shown in the above method embodiments. The communication apparatus can be applicable to the flowcharts shown above, and performs the functions of the terminal device or the network device in the above method embodiments. For the sake of illustration, Figure 14 only the main components of the communication apparatus are shown. Figure 13 Figure 14 As shown in the above method embodiments, the apparatus 1400 can be a terminal device or a network device. Figure 14 The apparatus shown in the above method embodiments can be a hardware circuit implementation of the apparatus shown in the above method embodiments. The communication apparatus can be applicable to the flowcharts shown above, and performs the functions of the terminal device or the network device in the above method embodiments. For the sake of illustration, only the main components of the communication apparatus are shown.

[0421] As shown in the above method embodiments, the apparatus 1400 can be a terminal device or a network device. Figure 2 to 12 The communication apparatus 1400 includes a processor 1410 and an interface circuit 1420. The processor 1410 and the interface circuit 1420 are coupled to each other. It can be understood that the interface circuit 1420 can be a transceiver or an input / output interface. Optionally, the communication apparatus 1400 can 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.

[0422] When the communication apparatus 1400 is used to implement the method shown in the above method embodiments, the processor 1410 is configured to implement the functions of the processing unit 1310 described above, and the interface circuit 1420 is configured to implement the functions of the communication unit 1320 described above. Figure 1

[0423] ​When the communication apparatus is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the method embodiments. The terminal device chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal device, and the information is sent by the network device to the terminal device. Alternatively, the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device, and the information is sent by the terminal device to the network device.

[0424] When the communication apparatus is a chip applied to a network device, the network device chip implements the functions of the network device in the method embodiments. The network device chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, and the information is sent by the terminal device to the network device. Alternatively, the network device chip sends information to other modules (such as a radio frequency module or an antenna) in the network device, and the information is sent by the network device to the terminal device.

[0425] It can be understood that the processor in the embodiments of the present application can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (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 can be a microprocessor or any conventional processor.

[0426] The processor in the embodiments of the application can be a Random Access Memory (RAM), a flash memory, a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), a register, a hard disk, a floppy disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can be a component of the processor. Suitable processors for the execution of instructions can be provided in an ASIC. Alternatively, the processor and the storage medium can be provided as separate components in the ASIC. Of course, the processor and the storage medium can also be provided in a machine that is separate from the ASIC.

[0427] Those skilled in the art will appreciate that embodiments of the present application can be readily used as a method, a system or a computer program product. A person skilled in the art will also appreciate that a computer program product can implement the method of the present application. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage etc.) embodying computer readable program code.

[0428] The present application is described in reference to the flowchart illustrations and / or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processing device or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart illustrations and / or block diagrams block or blocks. Figure 1 one or more functions specified in the flowchart illustrations and / or block diagrams block or blocks. Figure 1 means for performing one or more functions specified in the flowchart illustrations and / or block diagrams block or blocks.

[0429] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the flowchart illustrations and / or block diagrams block or blocks. Figure 1 one or more functions specified in the flowchart illustrations and / or block diagrams block or blocks. ​ means for performing one or more functions specified in the flowchart illustrations and / or block diagrams block or blocks.

[0430] Obviously, various modifications and changes can be made to the present application without departing from the scope thereof. Accordingly, it is intended that all such modifications and changes be included within the scope of the application as claimed.

[0431] The above description is merely that of the specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, and all such changes and replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for information transmission, characterized in that, include: Receive the uplink grant carried in the random access response message within the first downlink bandwidth; Within the first uplink bandwidth, message 3Msg3 is transmitted. The reception of the uplink grant carried in the random access response message precedes the transmission of Msg3. The last time unit for receiving the uplink grant carried in the random access response message is time unit s1, and the starting time unit for transmitting Msg3 is time unit t1. The minimum interval between time unit s1 and time unit t1 is r time units, where r is greater than p, and p = N. T,1 +N T,2 +0.5ms, N T,1 N represents the time length corresponding to the Physical Downlink Shared Channel (PDSCH) processing time. T,2 The time length corresponding to the preparation time for the Physical Uplink Shared Channel (PUSCH).

2. The method according to claim 1, characterized in that, The last time unit of the uplink grant carried in the random access response message is the last symbol of the PDSCH carrying the random access response message, and / or, The starting time unit of Msg3 is the first symbol of the PUSCH carrying Msg3.

3. The method according to claim 1 or 2, characterized in that, The r is increased by a first time interval compared to the p, and the first time interval is predefined.

4. The method according to claim 3, characterized in that, The first time interval is 500 microseconds.

5. The method according to any one of claims 1 to 4, characterized in that, The method is applied to a first terminal device, which is a low-complexity terminal device.

6. A method for information transmission, characterized in that, include: Send the uplink authorization carried in the random access response message to the first terminal device within the first downlink bandwidth; Within the first uplink bandwidth, message 3Msg3 is received from the first terminal device, wherein the last time unit for the uplink grant carried in the random access response message received by the first terminal device is time unit s1, the starting time unit for the first terminal device to send Msg3 is time unit t1, and the minimum interval between time unit s1 and time unit t1 is r time units, where r is greater than p and p = N. T,1 +N T,2 +0.5ms, N T,1 N represents the time length corresponding to the Physical Downlink Shared Channel (PDSCH) processing time. T,2 The time length corresponding to the preparation time for the Physical Uplink Shared Channel (PUSCH).

7. The method according to claim 6, characterized in that, The last time unit of the uplink grant carried in the random access response message is the last symbol of the PDSCH carrying the random access response message, and / or, The starting time unit of Msg3 is the first symbol of the PUSCH carrying Msg3.

8. The method according to claim 6 or 7, characterized in that, The r is increased by a first time interval compared to the p, and the first time interval is predefined.

9. The method according to claim 8, characterized in that, The first time interval is 500 microseconds.

10. The method according to any one of claims 6 to 9, characterized in that, The first terminal device is a low-complexity terminal device.

11. A communication device, characterized in that, include: A transceiver unit, configured to receive uplink authorization carried in a random access response message within a first downlink bandwidth; The transceiver unit is further configured to: transmit message 3Msg3 within a first uplink bandwidth, wherein the reception of the uplink grant carried in the random access response message precedes the transmission of Msg3, wherein the last time unit for receiving the uplink grant carried in the random access response message is time unit s1, the starting time unit for transmitting Msg3 is time unit t1, and the minimum interval between time unit s1 and time unit t1 is r time units, where r is greater than p and p = N. T,1 +N T,2 +0.5ms, N T,1 N represents the time length corresponding to the Physical Downlink Shared Channel (PDSCH) processing time. T,2 The time length corresponding to the preparation time for the Physical Uplink Shared Channel (PUSCH).

12. The apparatus according to claim 11, characterized in that, The last time unit of the uplink grant carried in the random access response message is the last symbol of the PDSCH carrying the random access response message, and / or, The starting time unit of Msg3 is the first symbol of the PUSCH carrying Msg3.

13. The apparatus according to claim 11 or 12, characterized in that, The r is increased by a first time interval compared to the p, and the first time interval is predefined.

14. The apparatus according to claim 13, characterized in that, The first time interval is 500 microseconds.

15. The apparatus according to any one of claims 11 to 14, characterized in that, The device is a low-complexity terminal equipment.

16. A communication device, characterized in that, include: A transceiver unit, configured to send an uplink authorization carried in a random access response message to a first terminal device within a first downlink bandwidth; The transceiver unit is further configured to receive message 3Msg3 from the first terminal device within the first uplink bandwidth, wherein the last time unit for the first terminal device to receive the uplink grant carried in the random access response message is time unit s1, the starting time unit for the first terminal device to send the Msg3 is time unit t1, and the minimum interval between time unit s1 and time unit t1 is r time units, where r is greater than p and p = N. T,1 +N T,2 +0.5ms, N T,1 N represents the time length corresponding to the Physical Downlink Shared Channel (PDSCH) processing time. T,2 The time length corresponding to the preparation time for the Physical Uplink Shared Channel (PUSCH).

17. The apparatus according to claim 16, characterized in that, The last time unit of the uplink grant carried in the random access response message is the last symbol of the PDSCH carrying the random access response message, and / or, The starting time unit of Msg3 is the first symbol of the PUSCH carrying Msg3.

18. The apparatus according to claim 16 or 17, characterized in that, The r is increased by a first time interval compared to the p, and the first time interval is predefined.

19. The apparatus according to claim 18, characterized in that, The first time interval is 500 microseconds.

20. The apparatus according to any one of claims 16 to 19, characterized in that, The first terminal device is a low-complexity terminal device.

21. A communication device, characterized in that, The device includes a processor connected to a memory for storing a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method as claimed in any one of claims 1 to 5, or to perform the method as claimed in any one of claims 6 to 10.

22. A communication system, characterized in that, The communication device includes any one of claims 11 to 15, and the communication device includes any one of claims 16 to 20.

23. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program that, when run on a computer, causes the computer to perform the method as described in any one of claims 1 to 5, or causes the computer to perform the method as described in any one of claims 6 to 10.

24. A chip, characterized in that, It includes a processor and a communication interface, the processor being configured to read instructions to execute the method as described in any one of claims 1 to 5, or to execute the method as described in any one of claims 6 to 10.

25. A computer program product, characterized in that, Includes a computer program that, when run on a computer, causes the computer to perform the method as described in any one of claims 1 to 5, or the method as described in any one of claims 6 to 10.

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