A communication method and apparatus

Abstract

This application relates to the field of communication technologies, and discloses a communication method and apparatus. The method includes: a terminal receives first indication information from a network device, where the first indication information is used to indicate available frequency-domain resources in a bandwidth that can be used for communication between the terminal and the network device. Here, the bandwidth is a carrier bandwidth or a part of a carrier bandwidth, and the available frequency-domain resources include multiple discontinuous frequency-domain resource groups, and each frequency-domain resource group includes one or more consecutive frequency-domain resource blocks; the terminal determines the available frequency-domain resources in the bandwidth according to the first indication information.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method and apparatus. Background Art

[0002] In the 5th Generation (5G) communication system, multiple standard bandwidths are defined, such as 5 MHz, 10 MHz, 15 MHz, 20 MHz, and 30 MHz. Operators need to deploy networks according to the standard bandwidths defined by 5G. However, the spectrums of some operators are discontinuous. These discontinuous spectrums can also be referred to as discrete spectrums. The bandwidth of a segment of the discrete spectrum owned by an operator is not necessarily exactly the above standard bandwidth. For example, as Figure 1 shown, in the frequency band of 925.1 MHz to 955.1 MHz, Operator A has discrete spectrum bandwidths of 5 MHz, 4.6 MHz, and 7.8 MHz respectively. Among them, 4.6 MHz and 7.8 MHz do not exactly meet the standard bandwidth. The bandwidth of 4.6 MHz cannot be deployed in the 5G communication system, and the bandwidth of 7.8 MHz can only be deployed according to the standard bandwidth of 5 MHz, wasting 2.8 MHz of spectrum resources.

[0003] Based on this, a solution has been proposed in the prior art to combine multiple discrete spectrums into a large system bandwidth, and network devices and terminals configure and utilize spectrum resources according to the large system bandwidth, which can improve spectrum efficiency. For example, as Figure 1 shown, the 30 MHz where the frequency band of 925.1 MHz to 955.1 MHz is located is used as the large system bandwidth. Operator A uses the available frequency bands in the 30 MHz system bandwidth. The network device allocates resources for the terminal on the available frequency bands in the 30 MHz system bandwidth, and the network device notifies the terminal of the reserved resources and the locations of the resources that can be used. The reserved resources refer to the resources where the terminal cannot receive downlink signals. In the downlink direction, the terminal uses a filter with the size of the system bandwidth to receive signals on the entire system bandwidth, and obtains the information it needs from the signals on the entire system bandwidth received according to the obtained reserved resources and the locations of the resources that can be used.

[0004] However, there may be spectrums of other operators in the system bandwidth containing discrete spectrums. There may be signals sent by network devices of other operators on the spectrums of other operators. In this case, the signals received by the terminal on the system bandwidth may contain signals sent by network devices of other operators, resulting in interference to the downlink signals of the terminal from the signals sent by network devices of other operators. Summary of the Invention

[0005] An embodiment of the present application provides a communication method and apparatus, which are used to solve the problem of how a terminal can obtain available frequency-domain resources when there is also the spectrum of other operators in the system bandwidth including discrete spectrum.

[0006] The specific technical solutions provided by the embodiments of the present application are as follows:

[0007] In a first aspect, a communication method is provided. The method is implemented through the following steps: The terminal receives indication information from a network device. For the convenience of description, this indication information is referred to as the first indication information. The first indication information is used to indicate the available frequency-domain resources in the bandwidth that can be used for communication between the terminal and the network device. The frequency-domain resources occupied by the terminal (i.e., the frequency-domain resources allocated by the network device to the terminal) belong to the available frequency-domain resources. Herein, the bandwidth is a carrier bandwidth or a part of a carrier bandwidth, or it can be said that the bandwidth is a system bandwidth. The available frequency-domain resources include multiple discontinuous frequency-domain resource groups, and each frequency-domain resource group includes one or more continuous frequency-domain resource blocks. The terminal determines the available frequency-domain resources in the bandwidth according to the first indication information. In this way, the terminal determines the available frequency-domain resources in the bandwidth through the indication information received from the network device, so that the terminal can avoid interference. Further, since the terminal knows the available frequency-domain resources, it has the condition to receive signals using a narrowband filter of an appropriate size according to the available frequency-domain resources. When the terminal uses a bandwidth composed of multiple discontinuous frequency-domain resource groups, it can filter out the signals of other systems through a narrowband filter of an appropriate size, which helps to avoid the interference of the signals of other systems and improve the data transmission quality.

[0008] In a possible design, the first indication information includes a bit sequence, and the bit values in the bit sequence are used to indicate the available frequency-domain resources. For example, one bit value in the bit sequence is used to indicate whether a frequency-domain resource group belongs to the available frequency-domain resources. Optionally, if the bit value is 1, it indicates that the frequency-domain resource group corresponding to this bit value belongs to the available frequency-domain resources, and the frequency-domain resource groups corresponding to the bits with a value of 1 in the bit sequence are the available frequency-domain resources; or, if the bit value is 0, it indicates that the frequency-domain resource group corresponding to this bit value belongs to the available frequency-domain resources, and the frequency-domain resource groups corresponding to the bits with a value of 0 in the bit sequence are the available frequency-domain resources. Through this indication method of the available frequency-domain resources, the terminal can determine the available frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the available frequency-domain resources in the bandwidth. For example, set the filtering range according to the available frequency-domain resources in the bandwidth, that is, set the size of the filter.

[0009] In a possible design, the first indication information includes a plurality of first indication units. A first indication unit can also be regarded as a field. The plurality of first indication units correspond to the plurality of discontinuous frequency-domain resource groups, and the first indication unit is used to indicate the frequency-domain resource group. Through this method of indicating available frequency-domain resources, the terminal can determine the available frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the available frequency-domain resources in the bandwidth. For example, the filtering range can be set according to the available frequency-domain resources in the bandwidth, that is, the size of the filter is set.

[0010] In a possible design, the first indication unit is used to indicate at least two of the following for the frequency-domain resource group: start position, length, and end position. Through this method of indicating available frequency-domain resources, the terminal can determine the available frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the available frequency-domain resources in the bandwidth. For example, the filtering range can be set according to the available frequency-domain resources in the bandwidth, that is, the size of the filter is set.

[0011] Optionally, the content of the first indication unit is the frequency-domain position of the frequency-domain resource group, or the first indication unit is an index value. There is a corresponding relationship between the index value and the frequency-domain position of the frequency-domain resource group, and the frequency-domain position of the frequency-domain resource group is indicated by the index value. For example, the index value is the resource indication version. Among them, the frequency-domain position of the frequency-domain resource group can be at least two of the following for the frequency-domain resource group: start position, length, and end position. Through this method of indicating available frequency-domain resources, the terminal can determine the available frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the available frequency-domain resources in the bandwidth. For example, the filtering range can be set according to the available frequency-domain resources in the bandwidth, that is, the size of the filter is set.

[0012] In a possible design, the first indication information is further used to indicate the reference frequency-domain position of the frequency-domain resource group, where the reference frequency-domain position includes at least one of a first frequency-domain position and a second frequency-domain position. The first frequency-domain position is lower than the start position of the frequency-domain resource group, and the second frequency-domain position is higher than the end position of the frequency-domain resource group. Alternatively, the reference frequency-domain position includes at least one of a first offset value and a second offset value. The first offset value is the deviation between the start position and the first frequency-domain position, and the second offset value is the deviation between the second frequency-domain position and the end position. By indicating the reference frequency-domain position of the frequency-domain resource group through the first indication information, the terminal can more accurately determine the narrowband range that can be filtered based on the reference frequency-domain position, and can configure the size of the filter more flexibly. For example, the terminal can set the size of the filter by combining the size of the frequency-domain resource group with the reference frequency-domain position, which reduces the requirements for the filter to a certain extent.

[0013] In a possible design, the terminal determines that the frequency-domain resources other than the frequencies between the first frequency-domain position and the second frequency-domain position in the bandwidth do not belong to the available frequency-domain resources; or the terminal determines that the transceiver power at the first frequency-domain position and / or the second frequency-domain position is lower than a preset value. The transceiver power includes transmission or reception.

[0014] In a possible design, the first indication information includes the bit sequence, and the bit values in the bit sequence are used to indicate the available frequency-domain resources. The first indication information further includes a plurality of second indication units, and the second indication units are used to indicate the reference frequency-domain position of the frequency-domain resource group; or if the first indication information includes a plurality of first indication units, the plurality of first indication units correspond to the plurality of discontinuous frequency-domain resource groups, the first indication unit is used to indicate the frequency-domain resource group, and the first indication unit is further used to indicate the reference frequency-domain position of the frequency-domain resource group.

[0015] In a possible design, the terminal receives second indication information from the network device, and the second indication information is used to indicate the downlink resources; the terminal receives the downlink signal only on the downlink available frequency-domain resource blocks, and the downlink available frequency-domain resource blocks are the resource blocks that belong to the available frequency-domain resources and the downlink resources.

[0016] In a possible design, the downlink signal includes a downlink data signal, a downlink control signal, or a downlink reference signal.

[0017] In a possible design, the second indication information generally has two indication methods. The first indication method is a discrete frequency-domain resource indication method, that is, the second indication information includes a bit sequence, and each bit in the bit sequence corresponds to X consecutive frequency-domain resource blocks in the indicated bandwidth. The second indication method is a continuous frequency-domain resource indication method, that is, the second indication information includes a RIV to indicate a continuous segment of resource blocks within the bandwidth. Through the method of indicating the downlink resources by the second indication information provided above, the second indication information only needs to indicate the available downlink resource blocks, without indicating all the frequency-domain resource blocks in the bandwidth. Compared with the prior art, it can help reduce the number of bits of the second indication information, reduce the overhead of the downlink indication resources of the network device, and reduce the complexity of the terminal processing the downlink indication information.

[0018] In a possible design, the terminal receives third indication information from the network device, where the third indication information is used to indicate uplink resources, and the terminal sends the uplink signal on the available uplink frequency-domain resource blocks, and the available uplink frequency-domain resource blocks are resource blocks that belong to the available frequency-domain resources and belong to the uplink resources.

[0019] In a possible design, the uplink signal includes an uplink data signal, an uplink control signal, or an uplink reference signal.

[0020] In a possible design, if the available downlink frequency-domain resource blocks are located in multiple frequency-domain resource groups, the terminal uses multiple radio frequency units to receive the downlink signal on the multiple frequency-domain resource groups; or, if the available uplink frequency-domain resource blocks are located in multiple frequency-domain resource groups, the terminal uses multiple radio frequency units to send the uplink signal on the multiple frequency-domain resource groups; where the multiple radio frequency units correspond to the multiple frequency-domain resource groups.

[0021] In a possible design, if the available downlink frequency-domain resource blocks are located in multiple frequency-domain resource groups, the terminal uses multiple filters to process the downlink signal received on the multiple frequency-domain resource groups; or, if the available uplink frequency-domain resource blocks are located in multiple frequency-domain resource groups, the terminal uses multiple filters to process the uplink signal sent on the multiple frequency-domain resource groups; where the multiple filters correspond to the multiple frequency-domain resource groups.

[0022] In a possible design, if the downlink signal is a downlink data signal, the downlink data signal includes at least one first transport block, and the available downlink frequency-domain resource blocks are located in multiple frequency-domain resource groups, then any one of the first transport blocks is carried on all the available downlink frequency-domain resource blocks located in the multiple frequency-domain resource groups.

[0023] In a possible design, if the uplink signal is an uplink data signal, the uplink data signal includes at least one second transport block, and the uplink available frequency-domain resource blocks belong to multiple frequency-domain resource groups, then any one of the second transport blocks is carried on all the uplink available frequency-domain resource blocks located within the multiple frequency-domain resource groups.

[0024] In a possible design, the terminal determines the unavailable frequency-domain resources in the bandwidth, and the unavailable frequency-domain resources cannot be used for communication between the terminal and the network device.

[0025] In a second aspect, a communication method is provided, which is implemented through the following steps: The terminal receives first indication information from the network device, and the first indication information is used to indicate the unavailable frequency-domain resources in the bandwidth that cannot be used for communication between the terminal and the network device. Herein, the bandwidth is a carrier bandwidth or a part of a carrier bandwidth, the unavailable frequency-domain resources include multiple discontinuous frequency-domain resource groups, and each frequency-domain resource group includes one or more continuous frequency-domain resource blocks. The terminal determines the unavailable frequency-domain resources in the bandwidth according to the first indication information. In this way, the terminal determines the unavailable frequency-domain resources in the bandwidth through the indication information received from the network device, so that the terminal can avoid interference. Further, since the terminal knows the unavailable frequency-domain resources, it has the condition to determine a narrowband filter of an appropriate size for signal reception according to the bandwidth and the unavailable frequency-domain resources. When the terminal uses a bandwidth composed of multiple discontinuous frequency-domain resource groups, it can filter out signals of other systems through a narrowband filter of an appropriate size, which helps to avoid interference from signals of other systems and improve data transmission quality.

[0026] In a possible design, the first indication information includes a bit sequence, and the bit values in the bit sequence are used to indicate the unavailable frequency-domain resources. For example, one bit value in the bit sequence is used to indicate whether a frequency-domain resource group belongs to the unavailable frequency-domain resources. Optionally, if the bit value is 1, it indicates that the frequency-domain resource group corresponding to the bit value belongs to the unavailable frequency-domain resources, and the frequency-domain resource groups corresponding to the bits with a value of 1 in the bit sequence are the unavailable frequency-domain resources; or, if the bit value is 0, it indicates that the frequency-domain resource group corresponding to the bit value belongs to the unavailable frequency-domain resources, and the frequency-domain resource groups corresponding to the bits with a value of 0 in the bit sequence are the unavailable frequency-domain resources. Through this method of indicating the unavailable frequency-domain resources, the terminal can determine the unavailable frequency-domain resources in the bandwidth, that is, determine the available frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the unavailable frequency-domain resources in the bandwidth. For example, the terminal can subtract the size of the unavailable frequency-domain resources in the bandwidth and set the range of one or more narrowband filters according to the remaining size.

[0027] In a possible design, the first indication information includes a plurality of first indication units. A first indication unit can also be regarded as a field. The plurality of first indication units correspond to the plurality of discontinuous frequency-domain resource groups, and the frequency-domain resource groups belong to unavailable frequency-domain resources. The first indication unit is used to indicate the frequency-domain resource group. Through this method of indicating unavailable frequency-domain resources, the terminal can determine the unavailable frequency-domain resources in the bandwidth, that is, determine the available frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the unavailable frequency-domain resources in the bandwidth. For example, the size of the unavailable frequency-domain resources in the bandwidth is removed, and the range of one or more narrowband filters is set according to the remaining size.

[0028] In a possible design, the first indication unit is used to indicate at least two of the following for the frequency-domain resource group: start position, length, and end position. Through this method of indicating unavailable frequency-domain resources, the terminal can determine the unavailable frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the unavailable frequency-domain resources in the bandwidth. For example, the size of the unavailable frequency-domain resources in the bandwidth is removed, and the range of one or more narrowband filters is set according to the remaining size.

[0029] Optionally, the content of the first indication unit is the frequency-domain position of the frequency-domain resource group, or the first indication unit is an index value. The index value has a corresponding relationship with the frequency-domain position of the frequency-domain resource group, and the frequency-domain position of the frequency-domain resource group is indicated by the index value. For example, the index value is the resource indication version. Among them, the frequency-domain resource group belongs to unavailable frequency-domain resources, and the frequency-domain position of the frequency-domain resource group can be at least two of the following: start position, length, and end position. Through this method of indicating unavailable frequency-domain resources, the terminal can determine the unavailable frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the unavailable frequency-domain resources in the bandwidth. For example, the size of the unavailable frequency-domain resources in the bandwidth is removed, and the range of one or more narrowband filters is set according to the remaining size.

[0030] In a possible design, the first indication information is further used to indicate the reference frequency-domain position of the frequency-domain resource group, where the frequency-domain resource group belongs to unavailable frequency-domain resources, the reference frequency-domain position includes at least one of a first frequency-domain position and a second frequency-domain position, the first frequency-domain position is lower than the start position of the frequency-domain resource group, the second frequency-domain position is higher than the end position of the frequency-domain resource group, or the reference frequency-domain position includes at least one of a first offset value and a second offset value, the first offset value is the deviation between the start position and the first frequency-domain position, and the second offset value is the deviation between the second frequency-domain position and the end position. By indicating the reference frequency-domain position of the frequency-domain resource group through the first indication information, the terminal can more accurately determine the narrowband range that can be filtered based on the reference frequency-domain position, and can configure the size of the filter more flexibly. For example, the terminal can set the size of the filter by referring to the size of the frequency-domain resource group and the reference frequency-domain position, which reduces the requirements for the filter to a certain extent.

[0031] In a possible design, if the first indication information only includes a first field and does not include a second field, that is, the first indication information only includes the field for indicating the frequency-domain resource and does not include the resource for indicating the time-domain resource, the first field is used to indicate the unavailable frequency-domain resources of the bandwidth. The first field is used to indicate the frequency-domain resources where the terminal cannot receive downlink signals, and the second field is used to indicate the time-domain resources where the terminal cannot receive downlink signals.

[0032] In a possible design, the terminal may also determine the unavailable frequency-domain resources in the bandwidth in the following manner: The terminal determines whether the second field is included in the first indication information. If not, the terminal obtains the first field in the first indication information, and the terminal determines the unavailable frequency-domain resources in the bandwidth according to the first field.

[0033] Optionally, the unavailable frequency-domain resources indicated by the first field are applicable to uplink communication, or downlink communication, or both uplink and downlink communication.

[0034] In a possible design, the first indication information includes the bit sequence, the bit values in the bit sequence are used to indicate the unavailable frequency-domain resources, the first indication information further includes a plurality of second indication units, and the second indication units are used to indicate the reference frequency-domain position of the frequency-domain resource group; or, if the first indication information includes a plurality of first indication units, the plurality of first indication units correspond to the plurality of discontinuous frequency-domain resource groups, the first indication unit is used to indicate the frequency-domain resource group, and the first indication unit is further used to indicate the reference frequency-domain position of the frequency-domain resource group.

[0035] In a possible design, the terminal receives second indication information from the network device, where the second indication information is used to indicate downlink resources; the terminal receives the downlink signal only on downlink available frequency-domain resource blocks, where the downlink available frequency-domain resource blocks are resource blocks that belong to the available frequency-domain resources and belong to the downlink resources.

[0036] In a possible design, the downlink signal includes a downlink data signal, a downlink control signal, or a downlink reference signal.

[0037] In a possible design, the second indication information generally has two indication methods. The first indication method is a discrete frequency-domain resource indication method, that is, the second indication information includes a bit sequence, and each bit in the bit sequence corresponds to X consecutive frequency-domain resource blocks in the indicated bandwidth. The second indication method is a continuous frequency-domain resource indication method, that is, the second indication information includes a RIV to indicate a continuous segment of resource blocks within the indicated bandwidth. By the method of indicating downlink resources with the second indication information provided above, the second indication information only needs to indicate the downlink available resource blocks, and there is no need to indicate all the frequency-domain resource blocks in the bandwidth. Compared with the prior art, it can help reduce the number of bits of the second indication information, reduce the overhead of the downlink indication resources of the network device, and reduce the complexity of the terminal processing the downlink indication information.

[0038] In a possible design, the terminal receives third indication information from the network device, where the third indication information is used to indicate uplink resources; the terminal sends the uplink signal on uplink unavailable frequency-domain resource blocks, where the uplink unavailable frequency-domain resource blocks are resource blocks that belong to the unavailable frequency-domain resources and belong to the uplink resources.

[0039] In a possible design, the uplink signal includes an uplink data signal, an uplink control signal, or an uplink reference signal.

[0040] In a possible design, if the downlink available frequency-domain resource blocks are located in multiple frequency-domain resource groups, the terminal uses multiple radio frequency units to receive the downlink signal on the multiple frequency-domain resource groups; or, if the uplink available frequency-domain resource blocks are located in multiple frequency-domain resource groups, the terminal uses multiple radio frequency units to send the uplink signal on the multiple frequency-domain resource groups; where the multiple radio frequency units correspond to the multiple frequency-domain resource groups.

[0041] In a possible design, if the downlink available frequency-domain resource blocks are located in multiple frequency-domain resource groups, the terminal processes the downlink signals received on the multiple frequency-domain resource groups using multiple filters; or, if the uplink available frequency-domain resource blocks are located in multiple frequency-domain resource groups, the terminal processes the uplink signals transmitted on the multiple frequency-domain resource groups using multiple filters; wherein, the multiple filters correspond to the multiple frequency-domain resource groups.

[0042] In a possible design, if the downlink signal is a downlink data signal, the downlink data signal includes at least one first transport block, and the downlink available frequency-domain resource blocks are located in multiple frequency-domain resource groups, then any one of the first transport blocks is carried on all the downlink available frequency-domain resource blocks located in the multiple frequency-domain resource groups.

[0043] In a possible design, if the uplink signal is an uplink data signal, the uplink data signal includes at least one second transport block, and the uplink available frequency-domain resource blocks belong to multiple frequency-domain resource groups, then any one of the second transport blocks is carried on all the uplink available frequency-domain resource blocks located in the multiple frequency-domain resource groups.

[0044] In a third aspect, a communication method is provided, which is implemented through the following steps: The terminal receives first indication information from a network device, where the first indication information is used to indicate the group number of a bandwidth part in a bandwidth, and the terminal determines the group number of the bandwidth part according to the first indication information. In this way, the terminal can determine available frequency-domain resources and unavailable frequency-domain resources according to the group number of the bandwidth part, and the bandwidth parts within the same group can be processed using a narrowband filter, thereby avoiding uplink and downlink interference.

[0045] In a possible design, the terminal determines available frequency-domain resources and / or unavailable frequency-domain resources according to the group number of the bandwidth part. Specifically, the frequency-domain resources between bandwidth parts with the same group number are available frequency-domain resources, and the frequency-domain resources between bandwidth parts with different group numbers are unavailable frequency-domain resources.

[0046] In a possible design, the first indication information includes multiple fields, where the multiple fields are used to indicate the bandwidth parts of multiple groups, and one field is used to indicate the bandwidth part of one group. The bandwidth parts within the same group are continuous, the bandwidth parts within the same group belong to the same frequency-domain resource group, the bandwidth parts in different groups do not overlap, and belong to different frequency-domain resource groups.

[0047] Fourth aspect, a communication method is provided, which is implemented through the following steps: A network device generates first indication information, and the network device sends the first indication information to a terminal; wherein, the first indication information is used to indicate available frequency-domain resources in a bandwidth that can be used by the terminal to communicate with the network device, where the bandwidth is a carrier bandwidth or a part of a carrier bandwidth, and the available frequency-domain resources include a plurality of discontinuous frequency-domain resource groups, and each frequency-domain resource group includes one or more continuous frequency-domain resource blocks. In this way, by the network device indicating the available frequency-domain resources in the bandwidth to the terminal, the terminal can determine the available frequency-domain resources in the bandwidth, so that the terminal can avoid interference. Further, since the terminal knows the available frequency-domain resources, it has the condition to receive signals using a narrowband filter of an appropriate size according to the available frequency-domain resources. When the terminal uses a bandwidth composed of a plurality of discontinuous frequency-domain resource groups, it can filter out signals of other systems through a narrowband filter of an appropriate size, which helps to avoid interference from signals of other systems and improve data transmission quality.

[0048] In a possible design, the first indication information includes a bit sequence, and the bit values in the bit sequence are used to indicate the available frequency-domain resources. For example, one bit value in the bit sequence is used to indicate whether a frequency-domain resource group belongs to the available frequency-domain resources. Optionally, if the bit value is 1, it indicates that the frequency-domain resource group corresponding to this bit value belongs to the available frequency-domain resources, and the frequency-domain resource groups corresponding to the bits with a value of 1 in the bit sequence are the available frequency-domain resources; or, if the bit value is 0, it indicates that the frequency-domain resource group corresponding to this bit value belongs to the available frequency-domain resources, and the frequency-domain resource groups corresponding to the bits with a value of 0 in the bit sequence are the available frequency-domain resources. Through this method of indicating the available frequency-domain resources, the terminal can determine the available frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can have the condition to process signals according to the available frequency-domain resources in the bandwidth. For example, set the filtering range according to the available frequency-domain resources in the bandwidth, that is, set the size of the filter.

[0049] In a possible design, the first indication information includes a plurality of first indication units. A first indication unit can also be regarded as a field. The plurality of first indication units correspond to the plurality of discontinuous frequency-domain resource groups, and the first indication unit is used to indicate the frequency-domain resource group. Through this method of indicating the available frequency-domain resources, the terminal can determine the available frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can have the condition to process signals according to the available frequency-domain resources in the bandwidth. For example, set the filtering range according to the available frequency-domain resources in the bandwidth, that is, set the size of the filter.

[0050] In a possible design, the first indication unit is used to indicate at least two of the following for the frequency-domain resource group: start position, length, and end position. Through this indication method of available frequency-domain resources, the terminal can determine the available frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can be conditioned to process signals according to the available frequency-domain resources in the bandwidth. For example, set the filtering range according to the available frequency-domain resources in the bandwidth, that is, set the size of the filter.

[0051] Optionally, the content of the first indication unit is the frequency-domain position of the frequency-domain resource group, or the first indication unit is an index value, and there is a corresponding relationship between the index value and the frequency-domain position of the frequency-domain resource group. The frequency-domain position of the frequency-domain resource group is indicated by the index value. For example, the index value is the resource indication version. Among them, the frequency-domain position of the frequency-domain resource group can be at least two of the following: start position, length, and end position. Through this indication method of available frequency-domain resources, the terminal can determine the available frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can be conditioned to process signals according to the available frequency-domain resources in the bandwidth. For example, set the filtering range according to the available frequency-domain resources in the bandwidth, that is, set the size of the filter.

[0052] In a possible design, the first indication information is further used to indicate the reference frequency-domain position of the frequency-domain resource group, where the reference frequency-domain position includes at least one of a first frequency-domain position and a second frequency-domain position. The first frequency-domain position is lower than the start position of the frequency-domain resource group, and the second frequency-domain position is higher than the end position of the frequency-domain resource group. Or the reference frequency-domain position includes at least one of a first offset value and a second offset value. The first offset value is the deviation between the start position and the first frequency-domain position, and the second offset value is the deviation between the second frequency-domain position and the end position. By indicating the reference frequency-domain position of the frequency-domain resource group through the first indication information, the terminal can more accurately determine the narrowband range that can be filtered according to the reference frequency-domain position, and can configure the size of the filter more flexibly. For example, the terminal can set the size of the filter by referring to the size of the frequency-domain resource group in combination with the reference frequency-domain position, which reduces the requirements for the filter to a certain extent.

[0053] In a possible design, the first indication information includes the bit sequence, the bit values in the bit sequence are used to indicate the available frequency-domain resources, and the first indication information further includes a plurality of second indication units, and the second indication units are used to indicate the reference frequency-domain positions of the frequency-domain resource groups; alternatively, if the first indication information includes a plurality of first indication units, the plurality of first indication units correspond to the plurality of discontinuous frequency-domain resource groups, the first indication units are used to indicate the frequency-domain resource groups, and the first indication units are further used to indicate the reference frequency-domain positions of the frequency-domain resource groups.

[0054] In a fifth aspect, a communication method is provided, and this method is implemented through the following steps: A network device generates first indication information, and the network device sends the first indication information to a terminal; wherein, the unavailable frequency-domain resources that can be used for communication between the terminal and the network device in the indicated bandwidth, wherein the bandwidth is a carrier bandwidth or a part of a carrier bandwidth, and the unavailable frequency-domain resources include a plurality of discontinuous frequency-domain resource groups, and each frequency-domain resource group includes one or more continuous frequency-domain resource blocks. In this way, by the network device indicating the unavailable frequency-domain resources in the bandwidth to the terminal, the terminal can determine the unavailable frequency-domain resources in the bandwidth, so that the terminal can avoid interference. Further, since the terminal knows the unavailable frequency-domain resources, the terminal has the condition to receive signals by using a narrowband filter of an appropriate size according to the bandwidth and the unavailable frequency-domain resources. When the terminal uses a bandwidth composed of a plurality of discontinuous frequency-domain resource groups, the signals of other systems can be filtered out by a narrowband filter of an appropriate size, which helps to avoid the interference of the signals of other systems and improve the data transmission quality.

[0055] In a possible design, the first indication information includes a bit sequence, and the bit values in the bit sequence are used to indicate the unavailable frequency-domain resources. For example, one bit value in the bit sequence is used to indicate whether a frequency-domain resource group belongs to the unavailable frequency-domain resources. Optionally, if the bit value is 1, it indicates that the frequency-domain resource group corresponding to this bit value belongs to the unavailable frequency-domain resources, and the frequency-domain resource groups corresponding to the bits with a value of 1 in the bit sequence are the unavailable frequency-domain resources; or, if the bit value is 0, it indicates that the frequency-domain resource group corresponding to this bit value belongs to the unavailable frequency-domain resources, and the frequency-domain resource groups corresponding to the bits with a value of 0 in the bit sequence are the unavailable frequency-domain resources. Through this indication method of the unavailable frequency-domain resources, the terminal can determine the unavailable frequency-domain resources in the bandwidth, that is, determine the available frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the unavailable frequency-domain resources in the bandwidth. For example, the size of the unavailable frequency-domain resources in the bandwidth is removed, and the range of one or more narrowband filters is set according to the remaining size.

[0056] In a possible design, the first indication information includes a plurality of first indication units. A first indication unit can also be regarded as a field. The plurality of first indication units correspond to the plurality of discontinuous frequency-domain resource groups, and the frequency-domain resource groups belong to unavailable frequency-domain resources. The first indication unit is used to indicate the frequency-domain resource group. Through this method of indicating unavailable frequency-domain resources, the terminal can determine the unavailable frequency-domain resources in the bandwidth, that is, determine the available frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the unavailable frequency-domain resources in the bandwidth. For example, the size of the unavailable frequency-domain resources in the bandwidth is removed, and one or more narrowband filtering ranges are set according to the remaining size.

[0057] In a possible design, the first indication unit is used to indicate at least two of the following for the frequency-domain resource group: start position, length, and end position. Through this method of indicating unavailable frequency-domain resources, the terminal can determine the unavailable frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the unavailable frequency-domain resources in the bandwidth. For example, the size of the unavailable frequency-domain resources in the bandwidth is removed, and one or more narrowband filtering ranges are set according to the remaining size.

[0058] Optionally, the content of the first indication unit is the frequency-domain position of the frequency-domain resource group, or the first indication unit is an index value. There is a corresponding relationship between the index value and the frequency-domain position of the frequency-domain resource group, and the frequency-domain position of the frequency-domain resource group is indicated by the index value. For example, the index value is the resource indication version. Among them, the frequency-domain resource group belongs to unavailable frequency-domain resources, and the frequency-domain position of the frequency-domain resource group can be at least two of the following for the frequency-domain resource group: start position, length, and end position. Through this method of indicating unavailable frequency-domain resources, the terminal can determine the unavailable frequency-domain resources in the bandwidth, that is, determine the unavailable frequency-domain resources in the bandwidth. In this way, the terminal can process signals according to the unavailable frequency-domain resources in the bandwidth. For example, the size of the unavailable frequency-domain resources in the bandwidth is removed, and one or more narrowband filtering ranges are set according to the remaining size.

[0059] In a possible design, the first indication information is further used to indicate the reference frequency-domain position of the frequency-domain resource group, where the frequency-domain resource group belongs to unavailable frequency-domain resources, the reference frequency-domain position includes at least one of a first frequency-domain position and a second frequency-domain position, the first frequency-domain position is higher than the starting position of the frequency-domain resource group, the second frequency-domain position is lower than the ending position of the frequency-domain resource group, the second frequency-domain position is higher than the first frequency-domain position, or the reference frequency-domain position includes at least one of a first offset value and a second offset value, the first offset value is the deviation between the starting position and the first frequency-domain position, and the second offset value is the deviation between the second frequency-domain position and the ending position. By indicating the reference frequency-domain position of the frequency-domain resource group through the first indication information, the terminal can more accurately determine the narrowband range that can be filtered according to the reference frequency-domain position, and can configure the size of the filter more flexibly. For example, the terminal can set the size of the filter by combining the size of the frequency-domain resource group and the reference frequency-domain position, which reduces the requirements for the filter to a certain extent.

[0060] In a possible design, the first indication information includes the bit sequence, the bit values in the bit sequence are used to indicate the unavailable frequency-domain resources, the first indication information further includes a plurality of second indication units, and the second indication unit is used to indicate the reference frequency-domain position of the frequency-domain resource group; or, if the first indication information includes a plurality of first indication units, the plurality of first indication units correspond to the plurality of discontinuous frequency-domain resource groups, the first indication unit is used to indicate the frequency-domain resource group, and the first indication unit is further used to indicate the reference frequency-domain position of the frequency-domain resource group.

[0061] In a sixth aspect, a communication method is provided. The method is implemented through the following steps: The network device generates first indication information, and the network device sends the first indication information to the terminal, where the first indication information is used to indicate the group number of the bandwidth part in the bandwidth. In this way, the network device can indicate the group number of the bandwidth part to the terminal, so that the terminal can determine the available frequency-domain resources and the unavailable frequency-domain resources. The bandwidth parts within the same group can be processed by a narrowband filter, thereby avoiding uplink and downlink interference.

[0062] In a possible design, the frequency-domain resources between the bandwidth parts with the same group number are available frequency-domain resources, and the frequency-domain resources between the bandwidth parts with different group numbers are unavailable frequency-domain resources.

[0063] In a possible design, the first indication information includes multiple fields. The multiple fields are used to indicate bandwidth parts of multiple groups, and one field is used to indicate the bandwidth part of one group. The bandwidth parts within the same group are continuous, and the bandwidth parts within the same group belong to the same frequency domain resource group. The bandwidth parts in different groups do not overlap and belong to different frequency domain resource groups.

[0064] In a seventh aspect, a communication device is provided. The device has a function of implementing the terminal behavior in any possible design of the first aspect, the second aspect, the third aspect, any possible design of the first aspect, any possible design of the second aspect, and any possible design of the third aspect. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0065] In a possible design, the device may be a chip or an integrated circuit.

[0066] In a possible design, the device includes a memory and a processor. The memory stores a set of programs, and the processor is configured to execute the programs stored in the memory. When the programs are executed, the device can perform the methods described in any possible design of the first aspect, the second aspect, the third aspect, any possible design of the first aspect, any possible design of the second aspect, and any possible design of the third aspect.

[0067] In a possible design, the device further includes a transceiver for communicating between the device and a network device.

[0068] In a possible design, the device is a terminal.

[0069] In an eighth aspect, a communication device is provided. The device has a function of implementing the network device behavior in any possible design of the fourth aspect, the fifth aspect, the sixth aspect, any possible design of the fourth aspect, any possible design of the fifth aspect, and any possible design of the sixth aspect. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0070] In a possible design, the device may be a chip or an integrated circuit.

[0071] In a possible design, the device includes a memory and a processor. The memory stores a set of programs, and the processor is configured to execute the programs stored in the memory. When the programs are executed, the device can perform the methods described in any possible design of the fourth aspect, the fifth aspect, the sixth aspect, any possible design of the fourth aspect, any possible design of the fifth aspect, and any possible design of the sixth aspect.

[0072] In a possible design, the device further includes a transceiver for communicating between the device and a terminal.

[0073] In a possible design, the device is a network device.

[0074] In a ninth aspect, a chip is provided. The chip is connected to a memory or includes a memory, and is configured to read and execute a software program stored in the memory to implement the method described in any of the possible designs of the first aspect, the second aspect, the third aspect, the first aspect, the second aspect, and the third aspect as described above.

[0075] In a tenth aspect, a chip is provided. The chip is connected to a memory or includes a memory, and is configured to read and execute a software program stored in the memory to implement the method described in any of the possible designs of the fourth aspect, the fifth aspect, the sixth aspect, the fourth aspect, the fifth aspect, and the sixth aspect as described above.

[0076] In an eleventh aspect, a communication system is provided. The communication system includes the devices described in the seventh aspect and the eighth aspect.

[0077] In a twelfth aspect, a computer storage medium is provided, storing a computer program, where the computer program includes instructions for executing the methods in the above aspects and any possible designs of the aspects.

[0078] In a thirteenth aspect, a computer program product is provided. When a computer reads and executes the computer program product, the computer is caused to execute the methods described in the above aspects and any possible designs of the aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] Figure 1 It is a schematic diagram of discrete spectrum in an embodiment of the present application;

[0080] Figure 2 It is a schematic diagram of the architecture of a communication system in an embodiment of the present application;

[0081] Figure 3 It is one of the schematic diagrams of the communication method flow provided in an embodiment of the present application;

[0082] Figure 4a It is one of the schematic diagrams of the frequency-domain resources in the bandwidth in an embodiment of the present application;

[0083] Figure 4b It is one of the schematic diagrams of the reference frequency-domain position in an embodiment of the present application;

[0084] Figure 5The second schematic diagram of the communication method flow provided in the embodiment of the present application;

[0085] Figure 6a The second schematic diagram of the frequency domain resources in the bandwidth in the embodiment of the present application;

[0086] Figure 6b The second schematic diagram of the reference frequency domain position in the embodiment of the present application;

[0087] Figure 7 The third schematic diagram of the communication method flow provided in the embodiment of the present application;

[0088] Figure 8 The first schematic diagram of the communication device structure provided in the embodiment of the present application;

[0089] Figure 9 The second schematic diagram of the communication device structure provided in the embodiment of the present application;

[0090] Figure 10 The third schematic diagram of the communication device structure provided in the embodiment of the present application. Detailed implementation manners

[0091] The present application provides a communication method and device. The terminal determines the available frequency domain resources in the bandwidth by receiving indication information from a network device, so that the terminal can avoid interference. Further, since the terminal knows the available frequency domain resources, it has the condition to receive signals using a narrowband filter of an appropriate size according to the available frequency domain resources. When the terminal uses a bandwidth composed of multiple discontinuous frequency domain resource groups, it can filter out signals of other systems through a narrowband filter of an appropriate size, which helps to avoid interference from signals of other systems and improve data transmission quality.

[0092] Among them, the method and the device are based on the same inventive concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repeated parts will not be described again. In the description of the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after. At least one involved in the present application refers to one or more; multiple refers to two or more. In addition, it should be understood that in the description of the present application, words such as "first" and "second" are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order. "At least one kind" means one kind or more; "at least one" means one or more; multiple means two or more.

[0093] The communication method provided by the embodiments of this application can be applied to a fourth-generation (4G) communication system, a fifth-generation (5G) communication system, or various future communication systems.

[0094] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0095] Figure 2 FIG. shows the architecture of a possible communication system to which the communication method provided by the embodiments of this application is applicable. Refer to Figure 2 As shown, the communication system 200 includes: a network device 201 and one or more terminals 202. When the communication system 200 includes a core network, the network device 201 can also be connected to the core network. The network device 201 can communicate with the IP network 203 through the core network. For example, the IP network 203 can be: the Internet, a private IP network, or other data networks, etc. The network device 201 provides services for the terminals 202 within its coverage area. For example, as shown in Figure 2 As shown, the network device 201 provides wireless access for one or more terminals 202 within the coverage area of the network device 201. The communication system 200 may include multiple network devices. For example, it may also include a network device 201'. There may be an overlapping area in the coverage ranges of the network devices. For example, there is an overlapping area in the coverage ranges of the network device 201 and the network device 201'. The network devices can also communicate with each other. For example, the network device 201 can communicate with the network device 201'.

[0096] The network device 201 is a node in a radio access network (RAN), also known as a base station, and can also be called a RAN node (or device). Currently, some examples of network devices 201 are: gNB / NR-NB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), base band unit (BBU), or wireless fidelity (Wifi) access point (AP), or network-side devices in a 5G communication system or future possible communication systems, etc.

[0097] The terminal 202, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides voice or data connectivity to users and can also be an Internet of Things device. For example, the terminal 202 includes handheld devices, in-vehicle devices, etc. with wireless connection capabilities. Currently, the terminal 202 can be: a mobile phone, a tablet computer, a laptop computer, a personal digital assistant, a mobile internet device (MID), a wearable device (such as a smart watch, a smart bracelet, a pedometer, etc.), an in-vehicle device (such as a car, a bicycle, an electric vehicle, an airplane, a ship, a train, a high-speed train, etc.), a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a smart home device (such as a refrigerator, a TV, an air conditioner, an electric meter, etc.), a smart robot, a workshop device, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, or a wireless terminal in a smart home, a flying device (such as a smart robot, a hot air balloon, a drone, an airplane), etc.

[0098] For ease of understanding, several concepts involved in the embodiments of this application are first introduced.

[0099] 1) The bandwidth involved in the embodiments of this application can refer to a carrier bandwidth or a carrier bandwidth part, or a system bandwidth. Generally speaking, the carrier bandwidth can be understood as the bandwidth occupied by the network side, the carrier bandwidth part can be understood as the bandwidth occupied by the terminal, and a carrier bandwidth can include one or more carrier bandwidth parts. For example, a 20 MHz carrier bandwidth can be divided into two 10 MHz carrier bandwidth parts. The bandwidth involved in the method of the embodiments of this application can be a large bandwidth composed of discrete spectra. The discrete spectrum can also be called a discontinuous frequency domain resource group. A frequency domain resource group occupies a part of the bandwidth, and a frequency domain resource group includes one or more continuous frequency domain resource blocks.

[0100] 2) These discontinuous frequency-domain resource groups in the bandwidth are the available frequency-domain resources in the communication system. The available frequency-domain resources involved in the method provided in the embodiments of this application refer to the resources in the bandwidth that can be used for communication between the terminal and the network device, or the resources occupied by the operators to which the terminal and the network device belong. The resources in the bandwidth that cannot be used for communication between the terminal and the network device are called unavailable frequency-domain resources, and the unavailable frequency-domain resources may be occupied by other operators. The intersection of the unavailable frequency-domain resources and the available frequency-domain resources in the bandwidth is empty, that is, there is no overlapping part.

[0101] The above several concepts are illustrated by Figure 1 as shown below. For example, as Figure 1 shown, a large bandwidth of 30 MHz contains multiple discontinuous spectrum resource groups: 5 MHz, 4.6 MHz, and 7.8 MHz. These discontinuous frequency-domain resource groups together constitute the available frequency-domain resources for use when the terminal and the network device communicate. The resources allocated by the network device to the terminal are within this available frequency-domain resource, and the available frequency-domain resources can also be used by other terminals in the communication system. The resources other than this discontinuous frequency-domain resource group are unavailable frequency-domain resources and may be occupied by other operators.

[0102] Based on the above description and Figure 2 the communication system architecture shown below, as Figure 3 shown, the communication method provided in the embodiments of this application will be introduced in detail below.

[0103] The main idea of the method provided in the embodiments of this application is that the network device indicates the available frequency-domain resources or the unavailable frequency-domain resources to the terminal, and the terminal determines the available frequency-domain resources and / or the unavailable frequency-domain resources in the bandwidth according to the indication information of the network device, so that subsequent signal transmission or reception processes can be performed according to the available frequency-domain resources and / or the unavailable frequency-domain resources. Among them, both the available frequency-domain resources and the unavailable frequency-domain resources are a section of resources in the bandwidth. The available frequency-domain resources in the bandwidth in the embodiments of this application include multiple discontinuous frequency-domain resource groups, and the unavailable frequency-domain resources may include one or more discontinuous frequency-domain resource groups. Therefore, the methods for the network device to indicate the available frequency-domain resources and the unavailable resources are similar, and the methods for the terminal to determine the available frequency-domain resources and the unavailable frequency-domain resources in the bandwidth are also similar. The indication methods or determination methods of the two resources can be referred to each other. When the terminal knows the bandwidth, when determining one of the available frequency-domain resources and the unavailable frequency-domain resources, it can determine the other. In the following description, the operations after the terminal determines the available frequency-domain resources also apply to the operations after the terminal determines the unavailable frequency-domain resources.

[0104] In the following description, the method for indicating available frequency domain resources and the method for determining available resources are mainly introduced. It can be understood that the method for indicating available frequency domain resources and the method for determining available resources can be applied to unavailable frequency domain resources.

[0105] Step 301: The network device sends first indication information to the terminal, and the terminal receives the first indication information from the network device.

[0106] This first indication information is used to indicate the available frequency domain resources in the bandwidth.

[0107] Step 302: The terminal determines the available frequency domain resources in the bandwidth according to the first indication information.

[0108] The following further elaborates on possible implementation manners in the above communication method.

[0109] First, several possible forms of the first indication information are introduced.

[0110] Form 1:

[0111] The first indication information includes a bit sequence, which can also be understood as a bitmap. The bit values in the bit sequence are used to indicate available frequency domain resources. A bit sequence is a field, and each bit in this field corresponds to indicating a frequency domain resource block, or each bit in this field corresponds to indicating multiple consecutive frequency domain resource blocks. Optionally, the elements in the bit sequence include 1 and 0.

[0112] In a possible implementation manner, one bit in the bit sequence is used to indicate a frequency domain resource block, and the length of the bit sequence is equal to the number of frequency domain resource blocks in the bandwidth. For example, a bit value of 1 indicates that the frequency domain resource block corresponding to this bit is an available frequency domain resource, and a bit value of 0 indicates that the frequency domain resource block corresponding to this bit is an unavailable frequency domain resource. Of course, it can also be defined that a bit value of 0 indicates that the frequency domain resource block corresponding to this bit is an available frequency domain resource, and a bit value of 1 indicates that the frequency domain resource block corresponding to this bit is an unavailable frequency domain resource.

[0113] In another alternative implementation, one bit in the bit sequence is used to indicate multiple consecutive frequency-domain resource blocks, and the length of the bit sequence can also be less than the number of frequency-domain resource blocks in the bandwidth. Each bit in the bit sequence can also correspond to N consecutive frequency-domain resource blocks, where N can be a positive integer greater than 1, such as 2, 4, 6, etc. For example, a bit value of 1 indicates that the N consecutive frequency-domain resource blocks corresponding to this bit are available resources, and a bit value of 0 indicates that the N consecutive frequency-domain resource blocks corresponding to this bit are unavailable frequency-domain resources. Another example is that it can also be defined that a bit value of 0 indicates that the N consecutive frequency-domain resource blocks corresponding to this bit are available resources, and a bit value of 1 indicates that the N consecutive frequency-domain resource blocks corresponding to this bit are unavailable frequency-domain resources.

[0114] The network device indicates which frequency-domain resource blocks are available frequency-domain resources and which are unavailable resources through the bit values in the bit sequence. The terminal determines the available and unavailable frequency-domain resources in the bandwidth through the bit values in the bit sequence.

[0115] Take Figure 1 the shown bandwidth as an example. For example, Figure 1 for the 30 MHz bandwidth shown in [reference], with a subcarrier spacing of 15 kHz, the number of frequency-domain resource blocks in the bandwidth can be 160. Optionally, the bit sequence can contain 160 bits, and each bit corresponds to indicating one of the 160 frequency-domain resource blocks. For example, a bit value of 1 indicates that the frequency-domain resource block corresponding to this bit is an available frequency-domain resource. Optionally, the bit sequence can contain (160 / N) bits, and each bit corresponds to indicating N consecutive frequency-domain resource blocks among the 160 frequency-domain resource blocks, where N is a positive integer greater than 1. When N = 2, the bit sequence can contain 80 bits, and each bit corresponds to indicating 2 consecutive frequency-domain resource blocks among the 160 frequency-domain resource blocks. For example, a bit value of 1 indicates that the 2 consecutive frequency-domain resource blocks corresponding to this bit are available frequency-domain resources. When N = 4, the bit sequence contains 40 bits, and each bit corresponds to indicating 4 consecutive frequency-domain resource blocks among the 160 frequency-domain resource blocks. For example, a bit value of 1 indicates that the 4 consecutive frequency-domain resource blocks corresponding to this bit are available frequency-domain resources.

[0116] Further illustrate through Figure 4a the example shown. For example, as Figure 4aAs shown, the bandwidth includes 52 frequency-domain resource blocks numbered from 0 to 51, i.e., numbered 0, 1, 2, ……, 51. The bandwidth includes available and unavailable frequency-domain resources, which are separated by a dashed line. The available frequency-domain resources include two discontinuous frequency-domain resource groups. One of the frequency-domain resource groups includes 20 consecutive frequency-domain resource blocks, and the other frequency-domain resource group includes 22 consecutive frequency-domain resource blocks. Optionally, the bit sequence can contain 52 bits, each bit corresponding to indicating one of the 52 frequency-domain resource blocks. For example, a bit value of 1 indicates that the frequency-domain resource block corresponding to the bit is an available frequency-domain resource, and the bit sequence is {1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 00 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1}. Optionally, the bit sequence can contain (52 / N) bits, each bit corresponding to indicating N consecutive frequency-domain resource blocks among the 52 frequency-domain resource blocks, where N is a positive integer greater than 1. When N = 2, the bit sequence contains 26 bits, each bit corresponding to indicating 2 consecutive frequency-domain resource blocks among the 52 frequency-domain resource blocks. For example, a bit value of 1 indicates that the 2 consecutive frequency-domain resource blocks corresponding to the bit are available frequency-domain resources, and the bit sequence is {1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 1 1 1 1 1 1 1 1 11}.

[0117] Presentation form two:

[0118] The first indication information includes multiple indication units, which can be referred to as the first indication units here. One first indication unit is used to indicate one frequency-domain resource group, and multiple first indication units correspond to multiple discontinuous frequency-domain resource groups. One indication unit can be understood as a field. Specifically, the first indication unit can be used to indicate the frequency-domain position of the frequency-domain resource group. For example, the first indication unit can be used to indicate at least two of the following for the frequency-domain resource group: start position, length, and end position.

[0119] For example, as Figure 4a shown, the bandwidth includes 52 frequency-domain resource blocks numbered from 0 to 51, i.e., numbered 0, 1, 2, ……, 51. The bandwidth includes available and unavailable frequency-domain resources, and the available frequency-domain resources include two discontinuous frequency-domain resource groups. One of the frequency-domain resource groups includes 20 consecutive frequency-domain resource blocks, and the other frequency-domain resource group includes 22 consecutive frequency-domain resource blocks. The first indication information includes two first indication units, and one first indication unit is used to indicate a corresponding frequency-domain resource group.

[0120] Optionally, the first indication unit indicates the start position and length of the frequency-domain resource group. One of the first indication units is {0, 20}, where 0 indicates that the start position of the frequency-domain resource group is the frequency-domain resource block numbered 0, and 20 indicates that the length of the frequency-domain resource group is 20 frequency-domain resource blocks. That is, the frequency-domain resource group indicated by this first indication unit {0, 20} is 20 consecutive frequency-domain resource blocks starting from the resource block numbered 0. Another first indication unit is {30, 22}, where 30 indicates that the start position of the frequency-domain resource group is the frequency-domain resource block numbered 30, and 22 indicates that the length of the frequency-domain resource group is 22 frequency-domain resource blocks. That is, the frequency-domain resource group indicated by this first indication unit {30, 22} is 22 consecutive frequency-domain resource blocks starting from the frequency-domain resource block numbered 30.

[0121] Optionally, the first indication unit is used to indicate the start position and end position of the frequency-domain resource group. One of the first indication units is {0, 19}, and this first indication unit is used to indicate that the start position of this frequency-domain resource group is the frequency-domain resource block numbered 0, and the end position of this frequency-domain resource group is the frequency-domain resource block numbered 19. Another first indication unit is {30, 51}, and this first indication unit is used to indicate that the start position of this frequency-domain resource group is the frequency-domain resource block numbered 30, and is used to indicate that the end position of this frequency-domain resource group is the frequency-domain resource block numbered 51.

[0122] Optionally, the first indication unit is used to indicate the end position and length of the frequency-domain resource group. One of the first indication units is {19, 20}, and this first indication unit is used to indicate that the end position of this frequency-domain resource group is the frequency-domain resource block numbered 20, and is used to indicate that the length of this frequency-domain resource group is 20 frequency-domain resource blocks. Another first indication unit is {51, 22}, and this first indication unit is used to indicate that the end position of this frequency-domain resource group is the frequency-domain resource block numbered 51, and is used to indicate that the length of this frequency-domain resource group is 22 frequency-domain resource blocks.

[0123] Optionally, the first indication unit can also indicate an index value, and this index value has a corresponding relationship with the frequency-domain position of the frequency-domain resource group, and the frequency-domain position of the frequency-domain resource group is indicated by the index value. This corresponding relationship is pre-determined, and the network device and the terminal device have the same understanding of this corresponding relationship. For example, this index value can be a resource indication version (RIV). RIV should be understood as a corresponding relationship between an index value and the start position and length of a frequency-domain resource group.

[0124] The following introduces other indication functions of the first indication information.

[0125] As described in the above method, the first indication information is used to indicate the available frequency domain resources in the bandwidth. Optionally, the first indication information can also be used to indicate the reference frequency domain position of the frequency domain resource group. If there are multiple frequency domain resource groups in the bandwidth, the multiple first indication information corresponds to indicating multiple reference frequency domain positions, and one first indication information is used to indicate the reference frequency domain position of one frequency domain resource group. Among them, the reference frequency domain position includes at least one of the first frequency domain position and the second frequency domain position. The first frequency domain position is lower than the starting position of the frequency domain resource group, and the second frequency domain position is higher than the ending position of the frequency domain resource group. It should be noted that the first frequency domain position being lower than the starting position of the frequency domain resource group can be understood as the frequency corresponding to the first frequency domain position being less than the frequency corresponding to the first subcarrier of the first frequency domain resource block in the frequency domain resource group, and the second frequency domain position being higher than the ending position of the frequency domain resource group can be understood as the frequency corresponding to the second frequency domain position being greater than the frequency corresponding to the last subcarrier of the last frequency domain resource block in the frequency resource group. The bandwidth between the first frequency domain position and the starting position can be regarded as the protection bandwidth of the frequency domain resource group, and the bandwidth between the ending position and the second frequency domain position can be regarded as the protection bandwidth of the frequency domain resource group. As Figure 4b shown, an example of the reference frequency domain position of a frequency domain resource group is shown, Figure 4b and the bandwidth of the shaded part in it is the protection bandwidth. The reference frequency domain position includes the first frequency domain position located on the low-frequency side of the frequency domain resource group and the second frequency domain position located on the high-frequency side of the frequency domain resource group.

[0126] In a possible implementation manner, the first indication information directly indicates the reference frequency domain position. For example, the first indication information indicates the reference frequency domain position through an absolute radio frequency channel number (ARFCN), and one ARFCN corresponds to an absolute frequency. For another example, the first indication information indicates the number of the subcarrier corresponding to the reference frequency position. The number of the subcarrier can be numbered based on the common reference point of the bandwidth, and the common reference point can be Point A in the NR system. It should be understood that the essence of Point A is a common reference point, and its name is not limited. Specifically, the subcarrier number of the common reference point is 0, then the first indication information can indicate that the subcarrier corresponding to the reference frequency position is X, where X is a positive integer. Thus, the terminal device can first determine the frequency F1 where the common reference point is located, and then determine the frequency F2 of the reference frequency position as F2 = F1 + X × S, where S is the subcarrier spacing and the value can be 15 kHz or other values.

[0127] In another possible implementation, the first indication information indicates a first offset value between a first frequency-domain position and a start position of a frequency-domain resource group, or indicates a second offset value between a second frequency-domain position and an end position of the frequency-domain resource group, or indicates both the first offset value and the second offset value, and the first offset value and the second offset value may be the same or different. Optionally, the first offset value may be in units of subcarrier spacing, so that the first indication information indicates that the first frequency-domain position deviates from the start position of the frequency-domain resource group by A subcarrier spacings. Here, the start position of the frequency-domain resource group should be understood as the frequency of the first subcarrier of the first frequency-domain resource block of the frequency-domain resource group. Among them, the subcarrier spacing corresponding to the first offset value may be the same as or different from the subcarrier spacing of the frequency-domain resource block, which is not limited here. Optionally, the first offset value may be in units of 5 kHz, so that the first indication information indicates that the first frequency-domain position deviates from the start position of the frequency-domain resource group by a frequency of B×5 kHz. Similarly, the second offset value may also be in units of subcarrier spacing, and the first indication information indicates that the second frequency-domain position deviates from the end position of the frequency-domain resource group by C subcarrier spacings. Here, the end position of the frequency-domain resource group should be understood as the frequency of the last subcarrier of the last frequency-domain resource block of the frequency-domain resource group. Among them, the subcarrier spacing corresponding to the second offset value may be the same as or different from the subcarrier spacing of the frequency-domain resource block, which is not limited here. For example, the second offset value may be 5 kHz, and the first indication information indicates that the second frequency-domain position deviates from the end position of the frequency-domain resource group by a frequency of D×5 kHz. A, B, C, and D are all positive integers. Optionally, the first indication information may also only indicate one offset value, and the indication method of this offset value refers to the above method, which will not be elaborated here. At this time, the terminal device can determine that the first offset value between the first frequency-domain position and the start position of the frequency-domain resource group is equal to the offset value indicated by the first indication information, and at the same time determine that the second offset value between the second frequency-domain position and the end position of the frequency-domain resource group is also equal to the offset value indicated by the first indication information. As Figure 4b shown, the first offset value can be considered as the shaded bandwidth at the low-frequency position of the frequency-domain resource group, and the second offset value can be considered as the shaded bandwidth at the high-frequency position of the frequency-domain resource group.

[0128] In the case where there are multiple frequency-domain resource groups in the bandwidth, the reference frequency-domain position of each frequency-domain resource group is indicated by first indication information. For example, the first indication information includes multiple indication units, each indication unit corresponding to a frequency-domain resource group and indicating the reference frequency-domain position of the corresponding frequency-domain resource group. Further, as described above, the manifestation form of the first indication information includes two possible implementation manners. In one possible implementation manner, the first indication information includes a bit sequence. In this case, the first indication information further includes multiple indication units. For ease of description, the indication units here are referred to as second indication units, and each second indication unit correspondingly indicates the reference frequency-domain position of a frequency-domain resource group. Correspondingly, the second indication unit directly indicates the reference frequency-domain position. For example, the second indication unit indicates the reference frequency-domain position by an ARFCN or a subcarrier number; or, the second indication unit indicates one or both of a first offset value and a second offset value.

[0129] In another possible implementation manner, the first indication information includes multiple first indication units. In this case, the first indication unit is further used to indicate the reference frequency-domain position of the frequency-domain resource group. Correspondingly, the first indication unit directly indicates the reference frequency-domain position. For example, the first indication unit indicates the reference frequency-domain position by an ARFCN or a subcarrier number; or, the first indication unit indicates at least one of a first offset value and a second offset value. Specifically, a part of the fields of the first indication unit is used to indicate the frequency-domain position of the frequency-domain resource group, and another part of the fields is used to indicate at least one of the first offset value and the second offset value of the frequency-domain resource group.

[0130] By indicating the reference frequency-domain position of the frequency-domain resource group through the first indication information, the terminal can more accurately determine the narrowband range that can be filtered based on the reference frequency-domain position, and can configure the size of the filter more flexibly. For example, the terminal can set the size of the filter by referring to the size of the frequency-domain resource group in combination with the reference frequency-domain position, which reduces the requirements for the filter to a certain extent.

[0131] The following describes the operations of the terminal in some possible implementation manners after being scheduled.

[0132] After the terminal determines the available frequency-domain resources in the bandwidth, when being scheduled, the terminal will perform signal transmission and reception based on the available frequency-domain resources. Similarly, after the terminal determines the unavailable frequency-domain resources in the bandwidth, when being scheduled, the terminal will not perform signal transmission and reception on the unavailable frequency-domain resources.

[0133] For downlink signal transmission, specifically, the network device sends second indication information to the terminal. The second indication information is used to indicate downlink resources, which are used by the terminal to receive downlink signals from the network device. The downlink resources are within the bandwidth. The terminal receives the second indication information from the network device and obtains the downlink resources indicated by the network device. Optionally, there are usually two indication methods for the second indication information. The first indication method is the discrete frequency-domain resource indication method, that is, the second indication information includes a bit sequence, and each bit in the bit sequence corresponds to X consecutive frequency-domain resource blocks in the indicated bandwidth. In the prior art, when indicating downlink resources, all frequency-domain resource blocks in the bandwidth need to be indicated. When the total number of frequency-domain resource blocks in the bandwidth is Y, the bit sequence included in the information for indicating downlink resources (such as downlink indication information) has Y / X bits. If Y / X is not an integer, it can be rounded up or down, usually rounded up. In the embodiments of the present application, the length of the bit sequence included in the second indication information is determined by the number of available downlink resource blocks in the bandwidth and the number X of consecutive resource blocks indicated by one bit. In the embodiments of the present application, the length of the bit sequence is the number of bits included in the bit sequence. After receiving the first indication information, the terminal can determine the number of available downlink resource blocks among the Y frequency-domain resource blocks. The number of available downlink resource blocks is denoted as Y1, and Y1 < Y. The length of the bit sequence included in the second indication information is Y1 / X. If Y1 / X is not an integer, it can be rounded up or down, usually rounded up. By the above method of using the second indication information to indicate downlink resources, the second indication information only needs to indicate the available downlink resource blocks, without indicating all frequency-domain resource blocks in the bandwidth. Compared with the prior art, it can help reduce the number of bits of the second indication information, reduce the overhead of the network device's downlink indication resources, and reduce the complexity of the terminal's processing of downlink indication information. Taking Figure 4a as an example, the total number of frequency-domain resource blocks in the bandwidth is Y = 52, each bit of the bit sequence corresponds to X = 2 consecutive frequency-domain resource blocks in the bandwidth, and the number of available resource blocks Y1 = 42 determined by the terminal according to the first indication information. The length of the bit sequence included in the second indication information is Y1 / X = 21.

[0134] The second indication method is a continuous frequency-domain resource indication method, that is, the second indication information includes an RIV to indicate a continuous resource block within the bandwidth. In the prior art, the number of bits required for the information used to indicate downlink resources (such as downlink indication information) is related to the total number Y of frequency-domain resource blocks in the bandwidth. Usually, the number of bits is the ceiling value obtained by taking the ceiling of log2(Y×(Y + 1) / 2). After receiving the first indication information, the terminal can determine the number of available downlink frequency-domain resource blocks among the Y frequency-domain resource blocks, denoted as Y1, and Y1 < Y. The number of bits required for the RIV included in the second indication information is determined according to the number of available downlink frequency-domain resource blocks in the bandwidth, that is, the ceiling value obtained by taking the ceiling of log2(Y1×(Y1 + 1) / 2). By using the method of indicating downlink resources with the second indication information provided above, the RIV included in the second indication information only needs to indicate the available downlink cheaper resource blocks, without indicating the total number Y of frequency-domain resource blocks in the bandwidth. Compared with the prior art, the number of bits in the bit sequence included in the second indication information is correspondingly reduced, which helps to reduce the overhead of the downlink indication resources of the network device and reduce the complexity of the terminal in processing the downlink indication information. It should be noted that at this time, the frequency-domain resource blocks indicated by the RIV in the second indication information are indexed according to the available frequency-domain resource blocks. For example, taking Figure 4a as an example, when the RIV indicates that the starting resource block of a continuous frequency-domain resource block is the resource block numbered 19 and the length is 2, the frequency-domain resource blocks determined by the terminal are Figure 4a the two frequency-domain resource blocks numbered 19 and numbered 30 in

[0135] Based on the above two indication methods of the second indication information, the second indication information is only used to indicate the available downlink resource blocks in the bandwidth. If the second indication information still adopts the indication method of the prior art, the downlink resources indicated by the second indication information are a continuous resource block. This continuous resource block may be within a frequency-domain resource group. In this case, the intersection of the downlink resources and the unavailable frequency-domain resources is empty. This continuous resource block may also be within multiple frequency-domain resource groups. Since multiple frequency-domain resource groups are discontinuous, the downlink resources indicated by the second indication information may also include downlink unavailable frequency-domain resource blocks. In this case, the intersection between the downlink resources and the unavailable frequency-domain resources is not empty.

[0136] When the downlink resources indicated by the second indication information include downlink unavailable frequency-domain resource blocks, the terminal receives downlink signals only on the available downlink frequency-domain resource blocks.

[0137] It should be noted that in the description of the embodiments of the present application, the downlink available frequency-domain resource block refers to a resource block that belongs to both the downlink resources and the available frequency-domain resources. In other words, the downlink available frequency-domain resource block belongs to one or more frequency-domain resource groups. The downlink unavailable frequency-domain resource block refers to a resource block in the downlink resources that does not belong to the available frequency-domain resources. In other words, the downlink unavailable frequency-domain resource block does not belong to any frequency-domain resource group.

[0138] If the downlink available frequency-domain resource block is located in multiple frequency-domain resource groups, the terminal uses multiple radio frequency units to receive downlink signals on multiple frequency-domain resource groups. The multiple radio frequency units correspond to the multiple frequency-domain resource groups, and one radio frequency unit corresponds to one frequency-domain resource group.

[0139] If the downlink available frequency-domain resource block is located in multiple frequency-domain resource groups, the terminal uses multiple filters to process the downlink signals received on multiple frequency-domain resource groups. The multiple filters correspond to the multiple frequency-domain resource groups, and one filter corresponds to one frequency-domain resource group. Specifically, the terminal sets the size of the filter according to the size of the frequency-domain resource group. Optionally, the terminal can also set the size of the filter according to the size of the frequency-domain resource group and the reference frequency-domain position. In this way, the terminal can determine multiple filters according to multiple frequency-domain resource groups, and use multiple filters to filter the downlink signals received on multiple frequency-domains, which can effectively avoid the interference of other system signals on the downlink unavailable frequency-domain resources. When setting the size of the filter in combination with the reference frequency-domain position, the size of the filter can be set more flexibly, reducing the requirements for the filter.

[0140] For uplink signal transmission, specifically, the network device sends the third indication information to the terminal. The third indication information is used to indicate the uplink resources, which are used by the terminal to send uplink signals to the network device. The uplink resources are within the bandwidth, and the terminal receives the third indication information from the network device. Similar to the indication method of the second indication information, the third indication information usually has two indication methods. The first indication method is the discrete frequency-domain resource indication method, that is, the third indication information includes a bit sequence, and each bit in the bit sequence corresponds to X consecutive frequency-domain resource blocks in the indicated bandwidth. In the prior art, when indicating the uplink resources, all the frequency-domain resource blocks in the bandwidth need to be indicated. When the total number of frequency-domain resource blocks in the bandwidth is Y, the bit sequence included in the information for indicating the uplink resources (such as the uplink indication information) has Y / X bits. If Y / X is a non-integer, it can be rounded up or down, usually rounded up. In the embodiments of the present application, the length of the bit sequence included in the third indication information is determined by the number of available uplink resource blocks in the bandwidth and the number X of consecutive resource blocks indicated by one bit. In the embodiments of the present application, the length of the bit sequence is the number of bits included in the bit sequence. After receiving the first indication information, the terminal can determine the number of available uplink resource blocks among the Y frequency-domain resource blocks. The number of available uplink resource blocks is denoted as Y1, and Y1 < Y. The length of the bit sequence included in the second indication information is Y1 / X. If Y1 / X is a non-integer, it can be rounded up or down, usually rounded up. By the method of indicating the uplink resources provided by the above-mentioned third indication information, the third indication information only needs to indicate the available uplink resource blocks, without indicating all the frequency-domain resource blocks in the bandwidth. Compared with the prior art, it can help reduce the number of bits of the third indication information, reduce the overhead of the uplink indication resources of the network device, and reduce the complexity of the terminal processing the uplink indication information. Taking Figure 4a as an example, the total number of frequency-domain resource blocks in the bandwidth is Y = 52, each bit of the bit sequence corresponds to X = 2 consecutive frequency-domain resource blocks in the bandwidth, the number of available resource blocks Y1 = 42 determined by the terminal according to the first indication information, and the length of the bit sequence included in the third indication information is Y1 / X = 21.

[0141] The second indication method is a continuous frequency-domain resource indication method, that is, the third indication information includes an RIV to indicate a continuous resource block within the bandwidth. In the prior art, the number of bits required for the information used to indicate the uplink resources (such as uplink indication information) is related to the total number of frequency-domain resource blocks Y in the bandwidth. Usually, the number of bits is the ceiling value obtained by taking the ceiling of log2(Y×(Y + 1) / 2). After receiving the first indication information, the terminal can determine the number of available uplink frequency-domain resource blocks among the Y frequency-domain resource blocks, denoted as Y1, and Y1 < Y. The number of bits required for the RIV included in the third indication information is determined according to the number of available uplink frequency-domain resource blocks in the bandwidth, that is, the ceiling value obtained by taking the ceiling of log2(Y1×(Y1 + 1) / 2). By using the method of indicating the uplink resources with the third indication information provided above, the RIV included in the third indication information only needs to indicate the available uplink frequency-domain resource blocks, without indicating the total number of frequency-domain resource blocks Y in the bandwidth. Compared with the prior art, the number of bits in the bit sequence included in the third indication information is correspondingly reduced, which helps to reduce the overhead of the uplink indication resources of the network device and reduce the complexity of the terminal's processing of the uplink indication information. It should be noted that at this time, the RIV in the third indication information indicates the frequency-domain resource blocks indexed according to the available frequency-domain resource blocks. For example, taking Figure 4a as an example, when the RIV indicates that the starting resource block of a continuous frequency-domain resource block is the resource block numbered 19 and the length is 2, the frequency-domain resource blocks determined by the terminal are Figure 4a the two frequency-domain resource blocks numbered 19 and numbered 30 in

[0142] Based on the above two indication methods of the second indication information, the third indication information is only used to indicate the available uplink resources in the bandwidth. If the third indication information still adopts the indication method of the prior art, the uplink resources indicated by the third indication information are a continuous resource block. This continuous resource block may be within a frequency-domain resource group. In this case, the intersection between the uplink resources and the unavailable frequency-domain resources is empty. This continuous resource block may also be within multiple frequency-domain resource groups. Since the multiple frequency-domain resource groups are discontinuous, the uplink resources indicated by the third indication information may also include uplink unavailable frequency-domain resource blocks. In this case, the intersection between the uplink resources and the unavailable frequency-domain resources is not empty.

[0143] When the uplink resources indicated by the third indication information include uplink unavailable frequency-domain resource blocks, the terminal only sends uplink signals on the available uplink frequency-domain resource blocks.

[0144] Further, the terminal may use an orthogonal frequency division multiplexing (OFDM) waveform and a discrete Fourier transform-spread OFDM (DFT-S-OFDM) waveform to send an uplink signal to the network device. The network device will pre-configure the waveform for the terminal to send the uplink signal. For the waveform pre-configured by the network device for the terminal device to send the uplink signal being DFT-S-OFDM, if the uplink resource indicated by the second indication information belongs to only one frequency domain resource group, the terminal still uses the DFT-S-OFDM waveform to send the uplink signal; if the uplink resource indicated by the second indication information belongs to at least two frequency domain resource groups, the terminal uses the OFDM waveform to send the uplink signal.

[0145] It should be noted that in the description of the embodiments of the present application, the available uplink frequency domain resource block refers to a resource block that belongs to both the uplink resource and the available frequency domain resource. The unavailable uplink frequency domain resource refers to a resource block in the uplink resource that does not belong to the available frequency domain resource.

[0146] If the available uplink frequency domain resource block is located in multiple frequency domain resource groups, the terminal uses multiple radio frequency units to send the uplink signal on multiple frequency domain resource groups. The multiple radio frequency units correspond to the multiple frequency domain resource groups, and one radio frequency unit corresponds to one frequency domain resource group.

[0147] If the available uplink frequency domain resource block is located in multiple frequency domain resource groups, the terminal uses multiple filters to process the uplink signals sent by the multiple frequency domain resource groups. The multiple filters correspond to the multiple frequency domain resource groups, and one filter corresponds to one frequency domain resource group. Specifically, the terminal sets the size of the filter according to the size of the frequency domain resource group. Optionally, the terminal can also set the size of the filter according to the size of the frequency domain resource group and the reference frequency domain position. In this way, the terminal can determine multiple filters according to multiple frequency domain resource groups and use the multiple filters to filter the uplink signals sent on multiple frequency domains, which can effectively avoid the interference of other system signals on the unavailable uplink frequency domain resource. When setting the size of the filter in combination with the reference frequency domain position, the size of the filter can be set more flexibly, reducing the requirements for the filter.

[0148] In the above description, the uplink signal sent by the terminal on the available frequency domain resource may be an uplink data signal, an uplink control signal, or an uplink reference signal. The uplink reference signal includes a demodulation pilot, a sounding pilot, and a phase tracking pilot. The downlink signal received by the terminal on the available frequency domain resource may be a downlink data signal, a downlink control signal, or a downlink reference signal. The downlink reference signal may also be a downlink pilot signal, and the downlink pilot signal includes a demodulation pilot, a measurement pilot, a phase tracking pilot, and a tracking pilot.

[0149] If the downlink available frequency domain resource blocks are located in multiple frequency domain resource groups, and the downlink signal is a downlink data signal, where the downlink data signal includes one or more transport blocks, which may be referred to as the first transport block, then any first transport block is carried on all the downlink available frequency domain resource blocks located in the multiple frequency domain resource groups. That is to say, the entire transport block of the downlink data sent by the network device is carried on all the downlink available frequency domain resource blocks allocated to the terminal.

[0150] Similarly, if the uplink available frequency domain resource blocks belong to multiple frequency domain resource groups, and the uplink signal is an uplink data signal, where the uplink data signal includes at least one second transport block, then any second transport block is carried on all the uplink available frequency domain resource blocks located in the multiple frequency domain resource groups. That is to say, the entire transport block of the uplink data sent by the terminal is carried on all the downlink available frequency domain resource blocks occupied by the terminal.

[0151] For example, Figure 4a On the indicated bandwidth, if the downlink available frequency domain resource blocks are the resource blocks numbered 18 to 19 and numbered 30 to 31, then each first transport block included in the downlink data signal is carried on the 4 resource blocks numbered 18 to 19 and numbered 30 to 31. Similarly, if the uplink available frequency domain resource blocks are the resource blocks numbered 18 to 19 and numbered 30 to 31, then each second transport block included in the uplink data signal is carried on the 4 resource blocks numbered 18 to 19 and numbered 30 to 31.

[0152] Combined with the above indication method and determination method of available resources, the indication method and determination method of unavailable resources are introduced below. As Figure 5 shown, another communication method provided in the embodiments of the present application is as follows.

[0153] It should be noted that in the above description, if the first indication information is used to indicate unavailable frequency domain resources, the method is the same and will not be elaborated here.

[0154] Step 501: The network device sends first indication information to the terminal, and the terminal receives the first indication information from the network device.

[0155] This first indication information is used to indicate the unavailable frequency domain resources in the bandwidth.

[0156] Step 502: The terminal determines the unavailable frequency domain resources in the bandwidth according to the first indication information.

[0157] The possible implementation manners in the above communication method are further described in detail below.

[0158] First, introduce several possible forms of the first indication information.

[0159] Form 1:

[0160] The first indication information includes a bit sequence, which can also be understood as a bitmap. The bit values in the bit sequence are used to indicate the unavailable frequency domain resources in the bandwidth. A bit sequence is a field, and each bit in this field corresponds to indicating a frequency domain resource block, or each bit in this field corresponds to indicating multiple consecutive frequency domain resource blocks. Optionally, the elements in the bit sequence include 1 and 0.

[0161] In a possible implementation, one bit in the bit sequence is used to indicate a frequency domain resource block, and the length of the bit sequence is equal to the number of frequency domain resource blocks in the bandwidth. For example, a bit value of 1 indicates that the frequency domain resource block corresponding to this bit is an available frequency domain resource, and a bit value of 0 indicates that the frequency domain resource block corresponding to this bit is an unavailable frequency domain resource. Of course, it can also be defined that a bit value of 0 indicates that the frequency domain resource block corresponding to this bit is an available frequency domain resource, and a bit value of 1 indicates that the frequency domain resource block corresponding to this bit is an unavailable frequency domain resource.

[0162] In another alternative implementation, one bit in the bit sequence is used to indicate multiple consecutive frequency domain resource blocks, and the length of the bit sequence can also be less than the number of frequency domain resource blocks in the bandwidth. Each bit in the bit sequence can also correspond to N consecutive frequency domain resource blocks, where N can be a positive integer greater than 1, such as 2, 4, 6, etc. For example, a bit value of 1 indicates that the N consecutive frequency domain resource blocks corresponding to this bit are unavailable resources, and a bit value of 0 indicates that the N consecutive frequency domain resource blocks corresponding to this bit are available frequency domain resources. Another example, it can also be defined that a bit value of 0 indicates that the N consecutive frequency domain resource blocks corresponding to this bit are unavailable resources, and a bit value of 1 indicates that the N consecutive frequency domain resource blocks corresponding to this bit are available frequency domain resources.

[0163] The network device indicates which frequency domain resource blocks are available frequency domain resources and which are unavailable resources through the bit values in the bit sequence. The terminal determines the available and unavailable frequency domain resources in the bandwidth through the bit values in the bit sequence.

[0164] For example, such as Figure 6aAs shown, the bandwidth includes 79 frequency-domain resource blocks, numbered from 0 to 78, i.e., numbered 0, 1, 2, ……, 78. The bandwidth includes available and unavailable frequency-domain resources, which are separated by a dashed line. The unavailable frequency-domain resources include two discontinuous frequency-domain resource groups. One frequency-domain resource group includes 10 consecutive frequency-domain resource blocks, numbered 20 to 29, and the other frequency-domain resource group includes 10 consecutive frequency-domain resource blocks, numbered 52 to 61. Optionally, the bit sequence may include 79 bits, each bit corresponding to indicating one of the 79 frequency-domain resource blocks. For example, a bit value of 0 indicates that the frequency-domain resource block corresponding to the bit is an unavailable frequency-domain resource, and the bit sequence is {1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1}. Optionally, the bit sequence may include (79 / N) bits, usually rounded up. Each bit corresponds to indicating N consecutive frequency-domain resource blocks among the 79 frequency-domain resource blocks, where N is a positive integer greater than 1. When N = 2, the bit sequence includes 40 bits, each bit corresponding to indicating 2 consecutive frequency-domain resource blocks among the 79 frequency-domain resource blocks, and the last bit corresponds to indicating the last frequency-domain resource block. For example, a bit value of 0 indicates that the frequency-domain resource block corresponding to the bit is an unavailable frequency-domain resource, and the bit sequence is {1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 1 1 1 1 1 1 1 1}.

[0165] Presentation form two:

[0166] The frequency-domain resource groups described in this part are the frequency-domain resource groups in the unavailable frequency-domain resources.

[0167] The first indication information includes multiple indication units, which can be referred to as the first indication units here. One first indication unit is used to indicate a frequency-domain resource group in an unavailable frequency-domain resource, and multiple first indication units correspond to multiple discontinuous frequency-domain resource groups. An indication unit can be understood as a field. Specifically, the first indication unit can be used to indicate the frequency-domain position of the frequency-domain resource group. For example, the first indication unit can be used to indicate at least two of the following for the frequency-domain resource group: start position, length, and end position.

[0168] For example, as Figure 6aAs shown in the figure, the bandwidth includes 79 frequency domain resource blocks, numbered from 0 to 78, that is, numbered 0, 1, 2, ……, 78. The bandwidth includes available frequency domain resources and unavailable frequency domain resources, which are separated by a dotted line. The unavailable frequency domain resources include two discontinuous frequency domain resource groups. One frequency domain resource group includes 10 consecutive frequency domain resource blocks, numbered from 20 to 29, and the other frequency domain resource group includes 10 consecutive frequency domain resource blocks, numbered from 52 to 61. The first indication information includes two first indication units, and one first indication unit is used to indicate the frequency domain resource group of a corresponding unavailable frequency domain resource.

[0169] Optionally, the first indication unit indicates the start position and length of the frequency domain resource group. One of the first indication units is {20, 10}, where 20 indicates that the start position of the frequency domain resource group is the frequency domain resource block numbered 20, and 10 indicates that the length of the frequency domain resource group is 10 frequency domain resource blocks. That is, the frequency domain resource group indicated by this first indication unit {20, 10} is 10 consecutive frequency domain resource blocks starting from the resource block numbered 20. The other first indication unit is {52, 10}, where 52 indicates that the start position of the frequency domain resource group is the frequency domain resource block numbered 52, and 10 indicates that the length of the frequency domain resource group is 10 frequency domain resource blocks. That is, the frequency domain resource group indicated by this first indication unit {52, 10} is 10 consecutive frequency domain resource blocks starting from the frequency domain resource block numbered 52.

[0170] Optionally, the first indication unit is used to indicate the start position and end position of the frequency domain resource group. One of the first indication units is {20, 29}, and this first indication unit is used to indicate that the start position of this frequency domain resource group is the frequency domain resource block numbered 20, and the end position of this frequency domain resource group is the frequency domain resource block numbered 29. The other first indication unit is {52, 61}, and this first indication unit is used to indicate that the start position of this frequency domain resource group is the frequency domain resource block numbered 52, and is used to indicate that the end position of this frequency domain resource group is the frequency domain resource block numbered 61.

[0171] Optionally, the first indication unit is used to indicate the end position and length of the frequency domain resource group. One of the first indication units is {29, 10}, and this first indication unit is used to indicate that the end position of this frequency domain resource group is the frequency domain resource block numbered 29, and is used to indicate that the length of this frequency domain resource group is 10 frequency domain resource blocks. The other first indication unit is {61, 10}, and this first indication unit is used to indicate that the end position of this frequency domain resource group is the frequency domain resource block numbered 61, and is used to indicate that the length of this frequency domain resource group is 10 frequency domain resource blocks.

[0172] Optionally, the first indication unit may further indicate an index value, which has a corresponding relationship with the frequency-domain position of the frequency-domain resource group, and the frequency-domain position of the frequency-domain resource group is indicated by the index value. This corresponding relationship is predetermined, and the network device and the terminal device have the same understanding of this corresponding relationship. For example, the index value may be RIV. RIV should be understood as a corresponding relationship between an index value and the start position and length of the frequency-domain resource group.

[0173] The following describes other indication functions of the first indication information.

[0174] In the description of this part, the frequency-domain resource group mentioned refers to the frequency-domain resource group in the unavailable frequency-domain resources.

[0175] As described in the above method, the first indication information is used to indicate the unavailable frequency-domain resources in the bandwidth. Optionally, the first indication information may also be used to indicate the reference frequency-domain position of the frequency-domain resource group. If there are multiple frequency-domain resource groups in the bandwidth, multiple first indication information corresponds to indicating multiple reference frequency-domain positions, and one first indication information is used to indicate the reference frequency-domain position of one frequency-domain resource group. Among them, the reference frequency-domain position includes at least one of a first frequency-domain position and a second frequency-domain position. The first frequency-domain position is higher than the start position of the frequency-domain resource group, the second frequency-domain position is lower than the end position of the frequency-domain resource group, and the second frequency-domain position is higher than the first frequency-domain position. It should be noted that the first frequency-domain position being higher than the start position of the frequency-domain resource group can be understood as the frequency corresponding to the first frequency-domain position being greater than the frequency of the first subcarrier of the first frequency-domain resource block in the frequency-domain resource group, and the second frequency-domain position being lower than the end position of the frequency-domain resource group can be understood as the frequency corresponding to the second frequency-domain position being less than the frequency of the last subcarrier of the last frequency-domain resource block in the frequency-resource group. As Figure 6b shown, an example of the reference frequency-domain position of a frequency-domain resource group is shown. The reference frequency-domain position includes a first frequency-domain position located on the low-frequency side of the frequency-domain resource group and a second frequency-domain position located on the high-frequency side of the frequency-domain resource group.

[0176] In a possible implementation, the first indication information directly indicates the reference frequency domain position. For example, the first indication information indicates the reference frequency domain position through an ARFCN, and one ARFCN corresponds to an absolute frequency. For another example, the first indication information indicates the number of the subcarrier corresponding to the reference frequency position, and the number of the subcarrier can be a number based on the common reference point of the bandwidth. The common reference point can be Reference Point A (Point A) in the NR system. It should be understood that the essence of Reference Point A is a common reference point, and its name is not limited. Specifically, if the subcarrier number of the common reference point is 0, the first indication information can indicate that the subcarrier corresponding to the reference frequency position is X, where X is a positive integer. Thus, the terminal device can first determine the frequency F1 where the common reference point is located, and then determine the frequency F2 = F1 + X × S, where S is the subcarrier spacing and the value can be 15 kHz or other values.

[0177] In another possible implementation, the first indication information indicates the first offset value between the first frequency domain position and the start position of the frequency domain resource group, or indicates the second offset value between the second frequency domain position and the end position of the frequency domain resource group, or indicates both the first offset value and the second offset value. The values of the first offset value and the second offset value can be equal or unequal. Optionally, the first offset value can be in units of subcarrier spacing. Thus, the first indication information indicates that the first frequency domain position deviates from the start position of the frequency domain resource group by A subcarrier spacings. Here, the start position of the frequency domain resource group should be understood as the frequency of the first subcarrier of the first frequency domain resource block of the frequency domain resource group. Among them, the subcarrier spacing corresponding to the first offset value can be the same as or different from the subcarrier spacing of the frequency domain resource block, and this is not limited here. Other understandings of the first offset value and the second offset value can refer to the relevant descriptions in the indication method of available frequency domain resources, and will not be elaborated here. As Figure 6b shown, the first offset value can be considered as the shaded bandwidth at the low-frequency position of the frequency domain resource group, and the second offset value can be considered as the shaded bandwidth at the high-frequency position of the frequency domain resource group.

[0178] In the case where there are multiple frequency-domain resource groups in the bandwidth, the reference frequency-domain position of each frequency-domain resource group is indicated by first indication information. For example, the first indication information includes multiple indication units, each indication unit corresponding to a frequency-domain resource group and indicating the reference frequency-domain position of the corresponding frequency-domain resource group. Further, as described above, the manifestation form of the first indication information includes two possible implementation manners. In one possible implementation manner, the first indication information includes a bit sequence. In this case, the first indication information further includes multiple indication units. For the convenience of description, the indication units here are referred to as second indication units, and each second indication unit correspondingly indicates the reference frequency-domain position of a frequency-domain resource group. Correspondingly, the second indication unit directly indicates the reference frequency-domain position. For example, the second indication unit indicates the reference frequency-domain position through an ARFCN; or, the second indication unit indicates one or both of a first offset value and a second offset value.

[0179] In another possible implementation manner, the first indication information includes multiple first indication units. In this case, the first indication unit is further used to indicate the reference frequency-domain position of the frequency-domain resource group. Correspondingly, the first indication unit directly indicates the reference frequency-domain position. For example, the first indication unit indicates the reference frequency-domain position through an ARFCN; or, the first indication unit indicates at least one of a first offset value and a second offset value. Specifically, a part of the fields of the first indication unit is used to indicate the frequency-domain position of the frequency-domain resource group, and another part of the fields is used to indicate at least one of the first offset value and the second offset value of the frequency-domain resource group.

[0180] By indicating the reference frequency-domain position of the frequency-domain resource group in the unavailable frequency domain resources through the first indication information, the terminal can more accurately determine the frequency-domain position of the available frequency-domain resources according to the reference frequency-domain position, and can set the narrowband range of the filtering according to the reference frequency-domain position, can more flexibly configure the size of the filter, and the requirements for the filter are reduced to a certain extent.

[0181] After the terminal determines the unavailable frequency-domain resources in the bandwidth, when being scheduled, the terminal will not send and receive signals in the unavailable frequency-domain resources. The operations of the terminal in some possible implementation manners after being scheduled can refer to the relevant descriptions in the available frequency-domain resource part and will not be elaborated here.

[0182] Optionally, the terminal can also determine the unavailable frequency-domain resources according to the following method.

[0183] First, introduce the prior art. The network device indicates the reserved resources in the terminal bandwidth through indication information. The reserved resources refer to the time-frequency resources in which the terminal cannot receive downlink signals. It should be noted that the frequency-domain resources in the reserved resources may be located in the available frequency-domain resources or may be located in the unavailable frequency-domain resources, and their definitions are different from those of the available frequency-domain resources.

[0184] Generally, the indication information includes two fields, denoted as the first field and the second field. The first field is used to indicate the frequency-domain resources in which the terminal cannot receive downlink signals, and the second field is used to indicate the time-domain resources in which the terminal cannot receive downlink signals. The manner in which the first field indicates the frequency-domain resources in which the terminal cannot receive downlink signals may refer to the manner in which the bit sequence described in the foregoing embodiments indicates unavailable resources.

[0185] Based on the foregoing indication manner of reserved resources, in the implementation manner described in this section, if the first indication information only includes the first field and does not include the second field, that is, the first indication information only includes the field for indicating frequency-domain resources and does not include the resources for indicating time-domain resources, then the first field is used to indicate the unavailable frequency-domain resources of the bandwidth.

[0186] In a specific implementation, the terminal determines whether the second field is included in the first indication information. If not, the terminal obtains the first field in the first indication information, and the terminal determines the unavailable frequency-domain resources in the bandwidth according to the first field.

[0187] Optionally, the unavailable frequency-domain resources indicated by the first field are applicable to uplink communication, or downlink communication, or applicable to both uplink and downlink communication.

[0188] In addition, if the terminal determines that the first indication information includes the first field and the second field, then the terminal determines the frequency-domain resources in which the terminal cannot receive downlink signals according to the first field, and determines the time-domain resources in which the terminal cannot receive downlink signals according to the second field. It should be noted that the reserved resources indicated by the first field and the second field here are only applicable to downlink communication.

[0189] Figure 3 The description in the method shown can be applicable to Figure 5 In the method shown, such as the description part of other indication functions of the first indication information, and such as the operations in some possible implementation manners after the terminal is scheduled are all applicable to Figure 5 the method shown.

[0190] Based on the same inventive concept, as Figure 7 shown, an embodiment of the present application further provides another communication method, where the indication information is used to indicate the available frequency-domain resources and the unavailable frequency-domain resources in the bandwidth. Specifically, it is described as follows.

[0191] Step 701: The network device sends first indication information to the terminal, and the terminal receives the first indication information from the network device.

[0192] This first indication information is used to indicate the group number of the bandwidth part (BWP) in the bandwidth.

[0193] Step 702: The terminal determines the group number of the bandwidth part according to the first indication information.

[0194] In the prior art, a bandwidth part includes one or more frequency-domain resource blocks. The network device can send the configuration information of the BWP to the terminal through high-layer signaling, such as radio resource control layer signaling. The terminal can obtain the start position of the frequency-domain resource blocks of the BWP, the end position of the frequency-domain resource blocks of the BWP, and the number of frequency-domain resource blocks of the BWP according to the configuration information. In the embodiments of the present application, the first indication information may include a field, and the value in this field is used to indicate the group number of multiple grouped bandwidth parts. Alternatively, the first indication information includes multiple fields, and one field is used to indicate the group number of a group of bandwidth parts.

[0195] Further, the terminal determines the available frequency-domain resources and / or unavailable frequency-domain resources according to the group number of the bandwidth part. Specifically, the frequency-domain resources between the bandwidth parts with the same group number are available frequency-domain resources, and the frequency-domain resources between the bandwidth parts with different group numbers are unavailable frequency-domain resources.

[0196] Exemplarily, based on Figure 4a , the network device can pre-configure two bandwidth parts for the terminal, including BWP0 and BWP1. Among them, BWP0 includes frequency-domain resource blocks numbered from 0 to 19, a total of 20 frequency-domain resource blocks, and BWP1 includes frequency-domain resource blocks numbered from 30 to 51, a total of 22 frequency-domain resource blocks. In this example, the first indication information can indicate that the group numbers of BWP0 and BWP1 are different. For example, the group number of BWP0 is 0, and the group number of BWP1 is 1. Thus, the terminal determines that the frequency-domain resource blocks between BWP0 and BWP1 are unavailable frequency-domain resources, and these unavailable frequency-domain resources include frequency-domain resource blocks numbered from 20 to 29, a total of 10 frequency-domain resource blocks.

[0197] For another example, the network device pre-configures two bandwidth parts for the terminal, including BWP0 and BWP1. Among them, BWP0 includes 6 frequency-domain resource blocks numbered from 0 to 5, and BWP1 includes 6 frequency-domain resource blocks numbered from 14 to 19. In this example, the first indication information can indicate that the group numbers of BWP0 and BWP1 are the same. For example, the group numbers of both BWP0 and BWP1 are 0. Thus, the terminal determines that the frequency-domain resource blocks between BWP0 and BWP1 are available frequency-domain resources, that is, 8 frequency-domain resource blocks numbered from 6 to 13 are available frequency-domain resources.

[0198] For another example, a network device pre-configures three bandwidth parts for a terminal, including BWP0, BWP1, and BWP2. Among them, BWP0 includes a total of 6 frequency-domain resource blocks numbered from 0 to 5, BWP1 includes a total of 6 frequency-domain resource blocks numbered from 14 to 19, and BWP2 includes a total of 22 frequency-domain resource blocks from the frequency-domain resource block numbered 30 to the frequency-domain resource block numbered 51. In this example, the first indication information may indicate that the group numbers of BWP0 and BWP1 are the same, but the group numbers of both BWP0 and BWP1 and the group number of BWP2 are different. For example, the group numbers of BWP0 and BWP1 are both 0, and the group number of BWP2 is 1. Thus, the terminal determines that the frequency-domain resource blocks between BWP0 and BWP1, that is, a total of 8 frequency-domain resource blocks numbered from 6 to 13, are available frequency-domain resources, while the frequency-domain resource blocks between BWP1 and BWP2, that is, a total of 10 frequency-domain resource blocks from the frequency-domain resource block numbered 20 to the frequency-domain resource block numbered 29, are unavailable frequency-domain resources.

[0199] It should be understood that the frequency-domain resource blocks between the bandwidth parts within the same group are available frequency-domain resources, and there are unavailable frequency-domain resources between two bandwidth parts in different groups. It can also be understood that the bandwidth parts within the same group belong to the same frequency-domain resource group, and the bandwidth parts in different groups do not overlap and belong to different frequency-domain resource groups.

[0200] For example, the bandwidth includes 4 bandwidth parts numbered BWP0, BWP1, BWP2, and BWP3. BWP and BWP1 are bandwidth parts within the same group and belong to the same frequency-domain resource group. BWP2 and BWP3 are bandwidth parts within the same group and belong to the same frequency-domain resource group. The grouping of BWP, BWP1 and BWP2, BWP3 is different. Then the first indication information may be {0, 0, 1, 1}, or the first indication information has two fields: {0, 0} and {1, 1}. Among them, the group number of BWP0 is 0, the group number of BWP1 is 0, the group number of BWP2 is 1, and the group number of BWP3 is 1. The BWPs with the same group number are BWPs in the same group. In this way, the terminal can determine the available and unavailable frequency-domain resources according to the group numbers of the bandwidth parts. The bandwidth parts within the same group can be processed by a narrowband filter, thereby avoiding uplink and downlink interference.

[0201] In another possible implementation, the first indication information includes multiple fields. The multiple fields are used to indicate multiple groups of bandwidth parts, and one field is used to indicate the bandwidth part of one group. The bandwidth parts within the same group are continuous and belong to the same frequency domain resource group. The bandwidth parts in different groups do not overlap and belong to different frequency domain resource groups. Similarly, as in the above example, the first indication information has two fields: {BWP0, BWP1} and {BWP2, BWP3}. The terminal can determine that BWP0 and BWP1 are in the same group, and BWP2 and BWP3 are in the same group according to the first indication information. In this way, the terminal can determine the available and unavailable frequency domain resources according to the group number of the bandwidth part. The bandwidth parts within the same group can be processed by a narrowband filter, thereby avoiding uplink and downlink interference.

[0202] Based on the same inventive concept as the above method embodiment, as Figure 8 shown, an embodiment of the present application further provides a communication device 800, which is used to perform the operations performed by the terminal in the above method embodiment. The communication device 800 includes a receiving unit 801 and a processing unit 802. Among them, the receiving unit 801 is used to receive information, or signals, or data from a network device. The processing unit 802 is used to perform other operations performed by the terminal described in the above method embodiment except for transceiver signals. Repetitive parts will not be elaborated.

[0203] Based on the same inventive concept as the above method embodiment, as Figure 9 shown, an embodiment of the present application further provides a communication device 900, which is used to perform the operations performed by the network device in the above method embodiment. The communication device 900 includes a sending unit 901 and a processing unit 902. Among them, the sending unit 901 is used to send information, or signals, or data to a terminal. The processing unit 902 is used to perform other operations performed by the network device described in the above method embodiment except for transceiver signals. Repetitive parts will not be elaborated.

[0204] Based on the same inventive concept as the above communication method, as shown in 10, an embodiment of the present application further provides a communication device 1000, which includes: a transceiver 1001, a processor 1002, and a memory 1003. The memory 1003 is optional. The memory 1003 is used to store programs executed by the processor 1002. When the communication device 1000 is used to implement the operations performed by the terminal in the communication method provided in the above embodiment, the processor 1002 is used to call a set of programs. When the programs are executed, the processor 1002 is caused to perform the operations performed by the terminal in one of the communication methods provided in the above embodiment. Figure 8The function module receiving unit 801 therein can be implemented by the transceiver 1001, and the processing unit 802 can be implemented by the processor 1002. When the communication device 1000 is used to implement the operations performed by the network device in the communication method provided in the foregoing embodiments, the processor 1002 is used to call a set of programs, and when the programs are executed, the processor 1002 is caused to execute the operations performed by the network device in one of the communication methods provided in the foregoing embodiments. Figure 9 The function module sending unit 901 therein can be implemented by the transceiver 1101, and the processing unit 902 can be implemented by the processor 1102.

[0205] Among them, the processor 1002 can be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.

[0206] The processor 1002 can further include a hardware chip. The above-mentioned hardware chip can be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

[0207] The memory 1003 can include a volatile memory, such as a random-access memory (RAM); the memory 1003 can also include a non-volatile memory, such as a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); the memory 1003 can further include a combination of the above-mentioned types of memories.

[0208] In the communication method provided in the foregoing embodiments of the present application, some or all of the operations and functions performed by the described terminal and network device can be completed by a chip or an integrated circuit.

[0209] In order to implement the above Figure 8 , Figure 9 orFigure 10 For the functions of the described device, an embodiment of the present application further provides a chip, including a processor, configured to support the device to implement the functions involved in the terminal and the network device in the communication method provided in the above embodiment. In a possible design, the chip is connected to a memory or the chip includes a memory, and the memory is used to store necessary program instructions and data of the device.

[0210] An embodiment of the present application provides a computer storage medium, storing a computer program, and the computer program includes instructions for executing the communication method provided in the above embodiment.

[0211] An embodiment of the present application provides a computer program product including instructions, which, when running on a computer, causes the computer to execute the communication method provided in the above embodiment.

[0212] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0213] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for realizing the functions specified in Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0214] These computer program instructions can also be stored in a computer-readable memory capable of guiding a computer or other programmable data processing devices to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured product including an instruction device, and the instruction device realizes the functions specified in Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0215] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operational steps are executed on the computer or other programmable apparatus to produce a computer-implemented process, thereby providing instructions for implementing the functions specified in one process or a plurality of processes and / or blocks Figure 1 one process or a plurality of processes and / or blocks Figure 1 in one block or a plurality of blocks.

[0216] Although the preferred embodiments of the present application have been described, additional changes and modifications can be made by those skilled in the art once they learn of the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present application.

[0217] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. A communication method, characterized in that, including: receiving first indication information from a network device, the first indication information being used to indicate a protection bandwidth in a bandwidth; determining, according to the first indication information, the protection bandwidth and available frequency-domain resources in the bandwidth, the available frequency-domain resources being frequency-domain resources in the bandwidth other than the protection bandwidth, and the available frequency-domain resources including a plurality of non-contiguous frequency-domain resource groups; wherein the bandwidth is a carrier bandwidth or a part of a carrier bandwidth, the protection bandwidth includes N non-contiguous frequency-domain resource groups, the first indication information includes N first indication units, the N first indication units respectively indicate the N non-contiguous frequency-domain resource groups, and each of the N non-contiguous frequency-domain resource groups includes one or more consecutive frequency-domain resource blocks, and N is a positive integer greater than 1; the method further includes: receiving second indication information from a network device, the second indication information being used to indicate downlink resources; receiving a downlink signal on downlink available frequency-domain resources, the downlink available frequency-domain resources being frequency-domain resources that belong to the available frequency-domain resources and belong to the downlink resources; or the method further includes: receiving third indication information from a network device, the third indication information being used to indicate uplink resources; transmitting an uplink signal on uplink available resources, the uplink available resources being frequency-domain resources that belong to the protection bandwidth and belong to the uplink resources.

2. The method according to claim 1, wherein Each of the N first indication units is used to indicate the start position and length of the corresponding frequency-domain resource group.

3. A communication method, characterized in that, including: determining a protection bandwidth and available frequency-domain resources in a bandwidth, the available frequency-domain resources being frequency-domain resources in the bandwidth other than the protection bandwidth; transmitting first indication information, the first indication information being used to indicate the protection bandwidth; wherein the bandwidth is a carrier bandwidth or a part of a carrier bandwidth, the protection bandwidth includes N non-contiguous frequency-domain resource groups, the available frequency-domain resources include a plurality of non-contiguous frequency-domain resource groups, the first indication information includes N first indication units, the N first indication units correspond to the N non-contiguous frequency-domain resource groups one by one, and each of the N non-contiguous frequency-domain resource groups includes one or more consecutive frequency-domain resource blocks, and N is a positive integer greater than 1; the method further includes: transmitting second indication information, the second indication information being used to indicate downlink resources; transmitting a downlink signal on downlink available frequency-domain resources, the downlink available frequency-domain resources being frequency-domain resources that belong to the available frequency-domain resources and belong to the downlink resources; or the method further includes: transmitting third indication information, the third indication information being used to indicate uplink resources; receiving an uplink signal on uplink available frequency-domain resources, the uplink available frequency-domain resources being frequency-domain resources that belong to the protection bandwidth and belong to the uplink resources.

4. The method according to claim 3, wherein Each of the N first indication units is used to indicate the start position and length of the corresponding frequency-domain resource group.

5. A communication device, characterized in that, including a receiving unit and a processing unit: The receiving unit is configured to receive first indication information for indicating a guard bandwidth in a bandwidth. The processing unit is configured to determine, according to the first indication information, the guard bandwidth and available frequency-domain resources in the bandwidth, where the available frequency-domain resources are frequency-domain resources in the bandwidth excluding the guard bandwidth, and the available frequency-domain resources include a plurality of non-contiguous frequency-domain resource groups. Wherein, the bandwidth is a carrier bandwidth or a part of a carrier bandwidth, the guard bandwidth includes N non-contiguous frequency-domain resource groups, the first indication information includes N first indication units, the N first indication units respectively indicate the N non-contiguous frequency-domain resource groups, and each of the N non-contiguous frequency-domain resource groups includes one or more contiguous frequency-domain resource blocks, and N is a positive integer greater than 1. The receiving unit is further configured to receive second indication information for indicating downlink resources. The apparatus further includes a transmitting unit configured to transmit a downlink signal on downlink available frequency-domain resources, where the downlink available frequency-domain resources are frequency-domain resources that belong to the available frequency-domain resources and belong to the downlink resources; or The receiving unit is further configured to receive third indication information for indicating uplink resources. The apparatus further includes a transmitting unit configured to receive an uplink signal on uplink available frequency-domain resources, where the uplink available frequency-domain resources are frequency-domain resources that belong to the guard bandwidth and belong to the uplink resources.

6. The device according to claim 5, characterized in that, Each of the N first indication units is configured to indicate a start position and a length of a corresponding frequency-domain resource group.

7. A communication device, characterized in that, Including a transmitting unit and a processing unit: The processing unit is configured to determine a guard bandwidth and available frequency-domain resources in a bandwidth, where the available frequency-domain resources are frequency-domain resources in the bandwidth excluding the guard bandwidth. The transmitting unit is configured to transmit first indication information for indicating the guard bandwidth. Wherein, the bandwidth is a carrier bandwidth or a part of a carrier bandwidth, the guard bandwidth includes N non-contiguous frequency-domain resource groups, the available frequency-domain resources include a plurality of non-contiguous frequency-domain resource groups, the first indication information includes N first indication units, the N first indication units correspond to the N non-contiguous frequency-domain resource groups one by one, and each of the N non-contiguous frequency-domain resource groups includes one or more contiguous frequency-domain resource blocks, and N is a positive integer greater than 1. The transmitting unit is further configured to transmit second indication information for indicating downlink resources. The transmitting unit is further configured to transmit a downlink signal on downlink available frequency-domain resources, where the downlink available frequency-domain resources are frequency-domain resources that belong to the available frequency-domain resources and belong to the downlink resources; or The transmitting unit is further configured to transmit third indication information for indicating uplink resources. The communication device further includes a receiving unit, which is configured to receive an uplink signal on uplink available frequency-domain resources, where the uplink available frequency-domain resources are frequency-domain resources that belong to the guard bandwidth and belong to the uplink resources.

8. The device according to claim 7, characterized in that Each of the N first indication units is configured to indicate the starting position and length of a corresponding frequency-domain resource group.

9. A communication device, characterized in that, It includes at least one processor and an interface circuit. The interface circuit is configured to receive signals from other communication devices outside the communication device and transmit them to the processor, or send signals from the at least one processor to other communication devices outside the communication device. The at least one processor is configured to implement the method according to any one of claims 1-2 or claims 3-4 through logic circuits or by executing code instructions.

10. A computer-readable storage medium, characterized in that, Instructions are stored in the computer storage medium. When the computer reads and executes the instructions, the computer is caused to execute the method according to any one of claims 1-2, or execute the method according to any one of claims 3-4.

11. A computer program product, characterized in that, When the computer reads and executes the computer program product, the computer is caused to execute the method according to any one of claims 1-2, or execute the method according to any one of claims 3-4.

12. A chip device, characterized in that, The chip is connected to the memory or the chip includes the memory, and is configured to read and execute a software program stored in the memory to implement the method according to any one of claims 1-2, or execute the method according to any one of claims 3-4.

13. A communication system, characterized in that, It includes at least one communication device according to claim 5 and at least one communication device according to claim 7.

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