Communication method and apparatus, and computer-readable storage medium and computer program product

Abstract

A communication method and apparatus, and a computer-readable storage medium and a computer program product. The method comprises: using a currently active equivalent BWP to transmit a channel or signal, wherein according to a preset frequency-domain resource mapping method, the channel or signal is mapped to a frequency-domain resource corresponding to the currently active equivalent BWP, the preset frequency-domain resource mapping method is associated with the type of the channel or signal, each equivalent BWP comprises at least one BWP, and a single BWP is contiguous in a frequency domain.

Description

Communication method and apparatus, computer-readable storage medium, and computer program product

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411289986.9, filed September 13, 2024, entitled “Communication method and apparatus, computer-readable storage medium, and computer program product,” which is incorporated by reference herein in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, in particular to a communication method and apparatus, a computer-readable storage medium, and a computer program product. BACKGROUND

[0004] At present, after a user equipment (UE) accesses a network, a network device (e.g., a base station) configures an initial bandwidth part (BWP) for the UE through a system information block 1 (SIB1). After the UE enters a connected state, the network device can further configure up to four BWPs for the UE in the connected state configuration (e.g., a downlink configuration, carried in a serving cell configuration ServingCellConfig field). At the same time, the UE has at most one BWP in effect.

[0005] For any currently configured BWP in effect, the BWP must be a continuous bandwidth according to the existing protocol. This results in a large amount of scattered bandwidth resources in the hands of operators that cannot be fully utilized, causing resource waste. SUMMARY

[0006] The technical problem solved by the present application is how to improve the utilization rate of bandwidth resources.

[0007] To solve the above technical problem, the present application provides a communication method, comprising: using a currently effective equivalent bandwidth part (BWP) to transmit a channel or a signal, the channel or the signal being mapped to a frequency domain resource corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner, the preset frequency domain resource mapping manner being associated with a type of the channel or the signal; wherein each of the equivalent BWPs includes at least one BWP, and a single BWP is continuous in the frequency domain.

[0008] Optionally, the communication method further comprises: receiving first information, the first information comprising a bitmap, a bit in the bitmap being used to indicate whether a resource block group corresponding to the bit is mapped, and a bandwidth corresponding to the bitmap being a union of frequency domain resources corresponding to the at least one BWP; and mapping the channel or signal to the frequency domain resources corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner, comprising: in response to the channel being a physical downlink control channel (PDCCH), mapping the PDCCH to the frequency domain resources corresponding to the currently effective equivalent BWP according to the bitmap; or, in response to the signal being a sounding reference signal (SRS), mapping the SRS to the frequency domain resources corresponding to the currently effective equivalent BWP according to the bitmap.

[0009] Optionally, a frequency domain starting position of a resource block group corresponding to a first bit in the bitmap is the same as a frequency domain starting position of a lowest BWP, the lowest BWP being a BWP with a lowest frequency domain starting position in the at least one BWP.

[0010] Optionally, in response to a frequency domain ending position of a highest BWP being located at a middle position of a resource block group, a bit corresponding to the resource block group in the bitmap is zero, the highest BWP being a BWP with a highest frequency domain starting position in the at least one BWP.

[0011] Optionally, the mapping of the channel or signal to the frequency domain resources corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner comprises: in response to the signal being a channel state information reference signal (CSI-RS), mapping the CSI-RS to frequency domain resources corresponding to at least one part of the at least one BWP.

[0012] Optionally, a total number of resource blocks to which the CSI-RS is mapped in the frequency domain resources corresponding to the at least one part of the at least one BWP is not less than a first threshold.

[0013] Optionally, a proportion of a number of resource blocks to which the CSI-RS is mapped in a total number of resource blocks included in the frequency domain resources corresponding to each BWP in the at least one part of the at least one BWP is not less than a second threshold.

[0014] Optionally, the communication method further comprises: receiving second information, the second information comprising at least one first indication field, the first indication field being used to indicate a mapping relationship between a shared channel and the frequency domain resources corresponding to the currently effective equivalent BWP; and the mapping of the channel or signal to the frequency domain resources corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner comprises: in response to the channel being a shared channel, mapping the shared channel to the frequency domain resources corresponding to the currently effective equivalent BWP according to an indication of the at least one first indication field.

[0015] Optionally, the number of the at least one first indication field is one, and the first indication field corresponds to a union of frequency domain resources corresponding to the at least one BWP or a total bandwidth occupied by the at least one BWP in the frequency domain; or, the at least one first indication field corresponds to the at least one BWP one by one; or, the number of the at least one first indication field is one, and the first indication field includes at least one bit segment, and the at least one bit segment corresponds to the at least one BWP one by one.

[0016] Optionally, the mapping of the shared channel to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field includes: mapping repeated transmission of the shared channel or a plurality of the shared channels to the frequency domain resources corresponding to the at least one BWP according to the indication of the at least one first indication field and a preset mapping order.

[0017] Optionally, the mapping of the shared channel to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field includes: mapping the shared channel to a first part of resource blocks corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field in a first time unit; in a second time unit, obtaining a second part of resource blocks corresponding to the currently effective equivalent BWP by shifting a preset offset amount upwards in the frequency domain based on the first part of resource blocks, and mapping the shared channel to the second part of resource blocks.

[0018] Optionally, the second part of resource blocks is cyclically arranged in the frequency domain in the frequency domain resources corresponding to the currently effective equivalent BWP.

[0019] Optionally, the second part of resource blocks does not overlap with the first part of resource blocks.

[0020] Optionally, within a same group of BWPs, the second part of resource blocks is offset relative to the first part of resource blocks, and the same group of BWPs includes at least part of the at least one BWP.

[0021] Optionally, the mapping of the shared channel to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field includes: splitting the shared channel into a plurality of segments in the time domain according to the indication of the at least one first indication field, and mapping the plurality of segments to the at least one BWP respectively.

[0022] Optionally, the number of the plurality of segments is not greater than the total number of the at least one BWP.

[0023] Optionally, a single segment is mapped to at least one part of the at least one BWP.

[0024] Optionally, in response to the signal being a sounding reference signal (SRS), each of the at least one BWP shares at least one of the following parameters: a bandwidth configuration parameter Csrs; a bandwidth configuration parameter Bsrs; a frequency hopping parameter bhop; and a frequency domain starting position parameter nrrc.

[0025] Optionally, the communication method further comprises: receiving configuration information, the configuration information being used to configure the at least one equivalent BWP and at least one BWP, each of the equivalent BWP comprising at least one of the at least one BWP.

[0026] To solve the above technical problems, the embodiment of the present application further provides a communication method, comprising: transmitting a channel or a signal using a currently effective equivalent bandwidth part (BWP), the channel or the signal being mapped to a frequency domain resource corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner, the preset frequency domain resource mapping manner being associated with a type of the channel or the signal; wherein each of the equivalent BWP comprises at least one BWP, and a single BWP is continuous in the frequency domain.

[0027] Optionally, the communication method further comprises: transmitting first information, the first information comprising a bitmap, a bit in the bitmap being used to indicate whether a resource block group corresponding to the bit is mapped or not, a bandwidth corresponding to the bitmap being a union of frequency domain resources corresponding to the at least one BWP; and the channel or the signal being mapped to the frequency domain resource corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner, comprising: in response to the channel being a physical downlink control channel (PDCCH), mapping the PDCCH to the frequency domain resource corresponding to the currently effective equivalent BWP according to the bitmap; or, in response to the signal being a sounding reference signal (SRS), mapping the SRS to the frequency domain resource corresponding to the currently effective equivalent BWP according to the bitmap.

[0028] Optionally, a frequency domain starting position of a resource block group corresponding to a first bit in the bitmap is the same as a frequency domain starting position of a lowest BWP, the lowest BWP being a BWP with the lowest frequency domain starting position in the at least one BWP.

[0029] Optionally, in response to a frequency domain ending position of a highest BWP being located at a middle position of a resource block group, a bit corresponding to the resource block group in the bitmap is zero, the highest BWP being a BWP with the highest frequency domain starting position in the at least one BWP.

[0030] Optionally, the channel or signal is mapped to the frequency domain resource corresponding to the current effective equivalent BWP according to a preset frequency domain resource mapping manner, including: in response to the signal being a channel state information reference signal (CSI-RS), mapping the CSI-RS to the frequency domain resource corresponding to at least one part of the at least one BWP.

[0031] Optionally, the communication method further includes: sending second information, the second information including at least one first indication field, the first indication field being used to indicate a mapping relationship between a shared channel and the frequency domain resource corresponding to the current effective equivalent BWP; and the channel or signal is mapped to the frequency domain resource corresponding to the current effective equivalent BWP according to a preset frequency domain resource mapping manner, including: in response to the channel being a shared channel, mapping the shared channel to the frequency domain resource corresponding to the current effective equivalent BWP according to the indication of the at least one first indication field.

[0032] Optionally, the shared channel is mapped to the frequency domain resource corresponding to the current effective equivalent BWP according to the indication of the at least one first indication field, including: mapping repeated transmission of the shared channel or a plurality of the shared channels to the frequency domain resource corresponding to each of the at least one BWP according to the indication of the at least one first indication field and a preset mapping order; or, mapping the shared channel to a first part of resource blocks corresponding to the current effective equivalent BWP according to the indication of the at least one first indication field in a first time unit; in a second time unit, taking the first part of resource blocks as a reference, obtaining a second part of resource blocks corresponding to the current effective equivalent BWP by shifting a preset offset amount upwards in the frequency domain, and mapping the shared channel to the second part of resource blocks; or, splitting the shared channel into a plurality of segments in the time domain according to the indication of the at least one first indication field, and mapping the plurality of segments to the at least one BWP respectively.

[0033] Optionally, the second part of resource blocks is cyclically arranged in the frequency domain on the frequency domain resource corresponding to the current effective equivalent BWP; and / or, within a same group of BWP, the second part of resource blocks is offset relative to the first part of resource blocks, the same group of BWP including at least one part of the at least one BWP; and / or, the number of the plurality of segments is not greater than the total number of the at least one BWP; and / or, a single segment is mapped to at least one part of the at least one BWP.

[0034] Optionally, the communication method further includes: sending configuration information, the configuration information being used to configure the at least one equivalent BWP and at least one BWP, each of the equivalent BWP including at least one of the at least one BWP.

[0035] To solve the above technical problems, the embodiment of the present application further provides a communication device, comprising: a transmission module, configured to transmit a channel or a signal using a currently effective equivalent bandwidth part (BWP), wherein the channel or the signal is mapped to a frequency domain resource corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner, and the preset frequency domain resource mapping manner is associated with a type of the channel or the signal; and wherein each of the equivalent BWPs comprises at least one BWP, and each of the BWPs is continuous in the frequency domain.

[0036] To solve the above technical problems, the embodiment of the present application further provides a computer readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, and stores a computer program, wherein the computer program is run by a processor to execute the steps of the above method.

[0037] To solve the above technical problems, the embodiment of the present application further provides a computer program product, comprising computer programs / instructions, which are executed by a processor to implement the steps of the above method.

[0038] To solve the above technical problems, the embodiment of the present application further provides a communication device, comprising a memory and a processor, wherein the memory stores a computer program capable of being run on the processor, and the processor executes the steps of the above method when running the computer program.

[0039] Compared with the prior art, the technical scheme of the embodiment of the present application has the following beneficial effects:

[0040] The present application provides a communication method, comprising: transmitting a channel or a signal using a currently effective equivalent BWP, wherein the channel or the signal is mapped to a frequency domain resource corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner, and the preset frequency domain resource mapping manner is associated with a type of the channel or the signal; and wherein each of the equivalent BWPs comprises at least one BWP, and each of the BWPs is continuous in the frequency domain.

[0041] Compared with the prior art, the technical scheme of the embodiment of the present application has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a schematic diagram of BWP allocation provided by the present application;

[0043] Figure 2 is a signaling interaction diagram of a communication method of a first embodiment of the present application;

[0044] Figure 3 is a schematic diagram of a typical application scenario of an embodiment of the present application;

[0045] Figure 4 is a signaling interaction diagram of a communication method of a second embodiment of the present application;

[0046] Figure 5 is a schematic diagram of another typical application scenario of an embodiment of the present application;

[0047] Figure 6 is a signaling interaction diagram of a communication method of a third embodiment of the present application;

[0048] Figure 7 is a signaling interaction diagram of a communication method of a fourth embodiment of the present application;

[0049] Figure 8 is a schematic diagram of yet another typical application scenario of an embodiment of the present application;

[0050] Figure 9 is a schematic diagram of another typical application scenario of an embodiment of the present application;

[0051] Figure 10 is a schematic diagram of yet another typical application scenario of an embodiment of the present application;

[0052] Figure 11 is a schematic diagram of another typical application scenario of an embodiment of the present application;

[0053] Figure 12 is a schematic diagram of yet another typical application scenario of an embodiment of the present application;

[0054] Figure 13 is a schematic diagram of another typical application scenario of an embodiment of the present application;

[0055] Figure 14 is a signaling interaction diagram of a communication method of a fifth embodiment of the present application;

[0056] Figure 15 is a schematic diagram of yet another typical application scenario of an embodiment of the present application;

[0057] Figure 16 is a structural schematic diagram of a communication apparatus of a sixth embodiment of the present application. DETAILED DESCRIPTION

[0058] In a New Radio (NR) Frequency Division Duplexing (FDD) system, a UE can be configured with at most 4 Downlink (DL) BWPs and 4 Uplink (UL) BWPs. In a NR Time Division Duplexing (TDD) system, a UE can be configured with at most 4 BWP pairs. A BWP pair refers to a DL BWP ID and a UL BWP ID are the same, and the center frequency of the DL BWP and the UL BWP are the same, but the bandwidth and subcarrier spacing can be different.

[0059] There are three types of BWPs: Initial BWP, default BWP and dedicated BWP. The initial BWP is mainly used for the UE to receive the Remaining Minimum System Information (RMSI), Other System Information (OSI) to initiate random access, etc. The dedicated BWP is mainly used for data service transmission, and the bandwidth of the dedicated BWP is generally larger than that of the initial BWP. The default BWP can be used when the timer of the dedicated BWP is expired, and the UE can switch to the default BWP.

[0060] The network device can switch the currently effective BWP for the UE according to the current traffic amount, for example, when a large amount of data needs to be transmitted, the BWP of the UE is switched to a large bandwidth, and when the amount of data to be transmitted is small, the BWP of the UE is switched to a small bandwidth. However, since each BWP must be a continuous bandwidth, a large amount of scattered resources will still not be fully utilized after resource division.

[0061] For example, referring to FIG. 1, it is assumed that the total bandwidth of the network device is 10 kHz to 50 kHz (corresponding to the area of the dashed line box in the figure), and the BWP allocated to the UE includes BWP1 (occupying 10 kHz to 30 kHz) and BWP2 (occupying 38 kHz to 45 kHz). The bandwidth interval of 30 kHz to 38 kHz (denoted as BWP3) and the bandwidth interval of 45 kHz to 50 kHz (denoted as BWP4) are scattered resources, and if these bandwidth resources are not allocated to other UEs, these bandwidth resources are in an idle state. If the UE needs to transmit a large amount of data traffic, the network side switches the UE to BWP1 for communication, and if the current traffic of the UE needs to transmit a small amount of data, the network side switches the UE to BWP2 for communication.

[0062] However, in actual application, if the current traffic of the UE is very large (such as requiring a bandwidth of 25 kHz), neither BWP1 nor BWP2 can meet the current service requirement of the UE, and the network device according to the prior art can only reconfigure a BWP with a suitable bandwidth for the UE. In fact, the bandwidth of BWP4 plus the bandwidth of BWP1 is exactly 25 kHz, which can meet the current service requirement of the UE. If the scattered bandwidth resources such as BWP4 can be integrated to serve the UE, the service requirement of the UE can be better and more efficiently met, and the bandwidth resources can be fully utilized. However, the prior art cannot do this.

[0063] To solve the above technical problems, the present application provides a communication method, comprising: transmitting a channel or a signal using a currently effective equivalent BWP, wherein the channel or the signal is mapped to the frequency domain resource corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner, and the preset frequency domain resource mapping manner is associated with the type of the channel or the signal; wherein each of the equivalent BWPs comprises at least one BWP, and a single BWP is continuous in the frequency domain.

[0064] The present application integrates the originally scattered resources to serve the UE by defining a BWP (i.e., an equivalent BWP) composed of a series of discontinuous resources (i.e., one or more independent BWPs). Further, based on the concept of the equivalent BWP, the frequency domain mapping manner is enhanced according to the type of the currently transmitted signal or channel, so that the UE and the network device can reliably and efficiently transmit the signal or the channel using the equivalent BWP. Therefore, the utilization rate of the bandwidth resources is greatly improved.

[0065] The BWP in the present application can also be referred to as a first type of BWP, and a single BWP is continuous in the frequency domain, which can be understood as a traditional (legacy) BWP. Different BWPs can be continuous or discontinuous in the frequency domain. According to the direction, the BWP further comprises an uplink BWP and / or a downlink BWP. Specifically, the network device can preconfigure an uplink BWP for the UE, or preconfigure a downlink BWP, or preconfigure an uplink BWP and a downlink BWP.

[0066] The equivalent BWP in the embodiments of the present application can also be referred to as a second type of BWP, and a single equivalent BWP includes at least one BWP. That is, a single equivalent BWP occupies one or more bandwidth intervals in the frequency domain, and two adjacent bandwidth intervals in the frequency domain can be continuous or discontinuous. According to the direction classification, the equivalent BWP can further include an equivalent uplink BWP and an equivalent downlink BWP. The equivalent uplink BWP can include at least one uplink BWP, and the equivalent downlink BWP can include at least one downlink BWP. Specifically, the network device can pre-configure the equivalent uplink BWP for the UE, or pre-configure the equivalent downlink BWP, or pre-configure the equivalent uplink BWP and the equivalent downlink BWP.

[0067] Continuing to take FIG. 1 as an example, BWP1, BWP2, BWP3 and BWP4 are all BWP of the embodiments of the present application, and accordingly, the equivalent BWP can include a combination of any number of the foregoing BWP. For example, the equivalent BWP can include BWP1 and BWP4, and for another example, the equivalent BWP can include BWP1, BWP2 and BWP3.

[0068] In order to make the above-mentioned purposes, features and beneficial effects of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0069] FIG. 2 is a signaling diagram of a communication method according to a first embodiment of the present application.

[0070] The present embodiment can be applied to a communication scenario supporting a multi-band serving cell (MBSC) technology. By introducing the concept of MBSC for BWP, more sufficient utilization of bandwidth resources is achieved.

[0071] In specific embodiments, the steps implemented by the UE in the communication method provided by steps S200-S201 can be executed by a chip with communication function in the UE, or can be executed by a baseband chip in the UE; and the steps implemented by the network device can be executed by a chip with communication function in the network device, or can be executed by a baseband chip in the network device.

[0072] Specifically, with reference to FIG. 2, the communication method described in the present embodiment can include the following steps:

[0073] S200, the network device sends configuration information to the UE, and the UE receives the configuration information accordingly. The configuration information is used to configure at least one BWP and at least one equivalent BWP, each of the BWP is continuous in the frequency domain, and each of the equivalent BWP includes at least one of the at least one BWP.

[0074] Step S200 is an optional step. In actual applications, the UE can also be configured with at least one equivalent BWP and at least one BWP through pre-configuration, pre-definition, etc.

[0075] Further, the BWP and the equivalent BWP configured by the configuration information can be applicable to any one of an initial BWP (initial BWP), a default BWP (default BWP), a first active BWP (first active BWP), and a dedicated BWP (dedicated BWP).

[0076] For example, the configuration information can configure m BWP and n equivalent BWP, where m and n are both positive integers. For each equivalent BWP in the n equivalent BWP, the equivalent BWP can include x BWP in the m BWP, 1≤x≤m. Different equivalent BWP in the n equivalent BWP can include the same BWP.

[0077] In some embodiments, the configuration information can configure 4 BWP: BWP-1, BWP-2, BWP-3, BWP-4, and 3 equivalent BWP: BWP-a={BWP-1,BWP-2}, BWP-b={BWP-3,BWP-4}, BWP-c={BWP-1,BWP-2,BWP-3,BWP-4}. Among them, the configuration information respectively configures specific parameter configurations for BWP-1, BWP-2, BWP-3 and BWP-4, and only indicates the indexes (i.e. the number "-x", x is 1, 2, 3 or 4) of the BWP included for BWP-a, BWP-b and BWP-c. The parameter configuration of BWP-a depends on the parameter information of BWP-1 and the parameter information of BWP-2, the parameter configuration of BWP-b depends on the parameter information of BWP-3 and the parameter information of BWP-4, and the parameter configuration of BWP-c depends on the parameter information of BWP-1 to BWP-4.

[0078] In some embodiments, the configuration information can include third information for configuring at least one BWP. Specifically, the third information can configure the parameter information of at least one BWP. Further, the third information can be a cell level configuration, and the network device configures all BWP that the cell (for example, a serving cell establishing a radio resource control (Radio Resource Control, RRC for short) connection with the UE) can use at the cell level.

[0079] For example, the third information is used to configure at least one uplink BWP and at least one downlink BWP. In some embodiments, the total number of at least one uplink BWP and the total number of at least one downlink BWP can be equal or unequal.

[0080] Referring to FIG. 3, in the configuration scenario of the dedicated BWP, the network device can first configure the parameter configuration of all BWPs in the cell through the third information, including uplink BWP-1, uplink BWP-2, uplink BWP-3 and uplink BWP-4, and downlink BWP-1, downlink BWP-2, downlink BWP-3 and downlink BWP-4. Among them, the uplink BWP-1, the uplink BWP-2, the uplink BWP-3 and the uplink BWP-4 belong to the uplink BWP, and the downlink BWP-1, the downlink BWP-2, the downlink BWP-3 and the downlink BWP-4 belong to the downlink BWP, and the configuration belongs to the cell level configuration.

[0081] All the BWPs configured by the third information are in an activated state, which can be indicated by SIB1 or other radio resource control (RRC) signaling, for example.

[0082] Further, the configuration information can further include fourth information for activating or deactivating one or more of the at least one BWP to obtain an equivalent BWP. That is, based on the fourth information, one or more BWPs that the UE is finally activated can be determined, and the one or more BWPs constitute the equivalent BWP.

[0083] For example, the fourth information can include a first bitmap and a second bitmap, the first bitmap being used to activate or deactivate one or more of the at least one uplink BWP, and the second bitmap being used to activate or deactivate one or more of the at least one downlink BWP. Continuing to refer to FIG. 3, the fourth information can include a first bitmap (assuming 1110) and a second bitmap (assuming 1201), 1 representing activation and 0 representing deactivation (or vice versa), and the diagonal fill in the figure representing deactivation. Accordingly, the UE can determine that its dedicated BWP includes uplink BWP-1, uplink BWP-2 and uplink BWP-3, and an equivalent uplink BWP (including uplink BWP-1, uplink BWP-2 and uplink BWP-3), and downlink BWP-1, downlink BWP-2 and downlink BWP-4, and an equivalent downlink BWP (including downlink BWP-1, downlink BWP-2 and downlink BWP-4). The configuration belongs to the UE level configuration. In this example, the network device can mute at the UE level for interference avoidance consideration, and then deactivate the downlink BWP-3 through the fourth information. Similarly, the deactivation of the uplink BWP-4 can also be for the consideration of reducing interference.

[0084] Thus, the set of discrete BWPs (i.e., at least one BWP) that the cell can utilize is configured at the cell level, and then several of them are activated or deactivated by UE-specific signaling. Further, the present embodiment is preferably applicable to a 6G system to achieve the BWP configuration in the present embodiment by modifying the RRC framework.

[0085] In one implementation, with continued reference to FIG. 2, the communication method described in the present embodiment can further include the steps of:

[0086] S201, the UE and the network device transmit a channel or a signal using the currently effective equivalent BWP. Wherein the channel or the signal is mapped to the frequency domain resource corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner, and the preset frequency domain resource mapping manner is associated with the type of the channel or the signal.

[0087] More specifically, the currently effective equivalent BWP can be the currently activated equivalent BWP among one or more equivalent BWPs configured to the UE (e.g., by step S200).

[0088] Further, for either of the UE and the network device, when it is necessary to transmit a signal or a channel (e.g., to the other party of the UE and the network device), it can perform step S201.

[0089] For example, the UE can send a signal or a channel to the network device using the currently effective equivalent BWP. Correspondingly, the network device receives the signal or the channel sent by the UE on the currently effective equivalent BWP.

[0090] For another example, the network device can also send a signal or a channel to the UE using the effective equivalent BWP. Correspondingly, the UE receives the signal or the channel sent by the network device on the currently effective equivalent BWP.

[0091] In some embodiments, in response to the currently effective equivalent BWP being the equivalent uplink BWP in the example shown in FIG. 3, the UE performs step S201 to determine a corresponding preset frequency domain resource mapping manner according to the type of the signal or the channel to be transmitted this time, and correctly maps the signal or the channel to at least one of the uplink BWP-1, the uplink BWP-2 and the uplink BWP-3 included in the equivalent uplink BWP based on the determined preset frequency domain resource mapping manner. Thus, it is ensured that the signal or the channel can be reliably transmitted to the network device. Correspondingly, as a receiving end, the network device can also determine a corresponding preset frequency domain resource mapping manner according to the type of the signal or the channel to be transmitted this time, and determine the specific mapping result of the signal or the channel on at least one of the uplink BWP-1, the uplink BWP-2 and the uplink BWP-3 based on the determined preset frequency domain resource mapping manner, so as to correctly receive and decode the signal or the channel sent by the UE on the corresponding frequency domain resource.

[0092] Similarly, in response to the currently effective equivalent BWP being the equivalent downlink BWP in the example shown in FIG. 3, the network device performs step S201 to determine the corresponding preset frequency domain resource mapping manner according to the type of the signal or channel of the current transmission, and correctly maps the signal or channel to at least one of the downlink BWP-1, downlink BWP-2 and downlink BWP-4 included in the equivalent downlink BWP based on the determined preset frequency domain resource mapping manner. In this way, it can be ensured that the signal or channel can be reliably received by the UE. Correspondingly, as the receiving end, the UE can also determine the corresponding preset frequency domain resource mapping manner according to the type of the signal or channel of the current transmission, and determine the specific mapping result of the signal or channel on at least one of the uplink BWP-1, uplink BWP-2 and uplink BWP-3 based on the determined preset frequency domain resource mapping manner, so as to correctly receive and decode the signal or channel transmitted by the network device on the corresponding frequency domain resource.

[0093] Next, the corresponding preset frequency domain resource mapping manner is described according to the type of the signal or channel.

[0094] FIG. 4 is a signaling interaction diagram of a communication method according to a second embodiment of the present application. In the present embodiment, the channel transmitted using the currently effective equivalent BWP can include a physical downlink control channel (PDCCH). The transmitting end of the PDCCH can be a network device, and the receiving end can be a UE. That is, in step S201, the network device maps the PDCCH to the frequency domain resource corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner corresponding to the PDCCH, and correspondingly, the UE receives the PDCCH on the frequency domain resource corresponding to the currently effective equivalent BWP. The network device can transmit downlink control information (DCI) through the PDCCH.

[0095] Specifically, the currently effective equivalent BWP can be an equivalent downlink BWP, which includes at least one downlink BWP.

[0096] Further, with reference to FIG. 4, before performing step S201, the communication method according to the present embodiment can further include the following step:

[0097] S202, the network device sends first information to the UE, and correspondingly, the UE receives the first information. The first information includes a bitmap, and a bit in the bitmap is used to indicate whether a resource block group (RBG) corresponding to the bit is mapped or not. The bandwidth corresponding to the bitmap is the union of the frequency domain resources corresponding to the at least one BWP.

[0098] Specifically, a set of consecutive multiple resource blocks (RBs) (e.g., 6 RBs) form an RBG, so as to divide the frequency domain resource corresponding to the current effective equivalent BWP into at least one RBG. Then, a bitmap composed of a set of bits indicates which RBGs are available, and the length of the bitmap is determined by the BWP bandwidth size and the RBG size. For example, the length of the bitmap is associated with the number of RBGs obtained by dividing the frequency domain resource corresponding to the current effective equivalent BWP. Wherein, the RB can also be referred to as a physical resource block (PRB) or a common resource block (CRB).

[0099] Further, for each bit in the bitmap, when the value of the bit is 1, the RBG indicated by the bit is mapped; when the value of the bit is 0, the RBG position indicated by the bit is not mapped. The first bit of the bitmap is the highest bit, corresponding to the RBG at the lowest position in the frequency domain, and then sequentially mapped.

[0100] The prior art has only one continuous BWP in the frequency domain (i.e., a single BWP) in effect each time, so the bandwidth corresponding to the bitmap is the frequency domain resource occupied by the BWP in the frequency domain. When applied to the equivalent BWP of the present application, the correspondence between the bandwidth of the bitmap and the frequency domain resource occupied by the equivalent BWP in the frequency domain needs to be clarified. Specifically, in the present embodiment, the frequency domain starting position of the lowest BWP in the at least one BWP included in the current effective equivalent BWP is taken as the starting point, and the union of the frequency domain resources corresponding to the at least one BWP is divided into at least one RBG in units of 6 RBs. That is, the actual bandwidth interval between the BWP is ignored, and the equivalent BWP is regarded as a virtual frequency-continuous BWP for RBG division.

[0101] Further, in the bitmap transmitted in S202, the frequency domain starting position of the RBG corresponding to the first bit is the same as the frequency domain starting position of the lowest BWP, i.e., the frequency domain starting positions of the two are flush. Wherein, the lowest BWP is the BWP with the lowest frequency domain starting position in the at least one BWP. The highest or the lowest mentioned in the present application can be understood as the size of the frequency point being the largest or the smallest. That is, the lowest BWP is the BWP with the smallest frequency point in the at least one BWP. The highest BWP is the BWP with the highest frequency point in the at least one BWP.

[0102] Further, in response to the frequency domain end position of the highest BWP being located in the middle position of the RBG, the bit corresponding to the RBG in the bitmap is set to zero. Wherein, the highest BWP is the BWP with the highest frequency domain starting position in the at least one BWP.

[0103] In a typical application scenario, referring to the (a) view of FIG. 5 (denoted as FIG. 5(a)), according to the existing protocol, regardless of the actual frequency domain location of the BWP, RB0 is uniformly taken as the starting position to divide every 6 RBs to form an RBG corresponding to one bit for indication. Each BWP is independently determined according to the overlapping relationship with the RBG to determine whether the corresponding bit is zeroed, which will result in many BWPs being unable to map the PDCCH. For example, in FIG. 5(a), assuming that the currently effective equivalent BWP includes BWP-1, BWP-2, BWP-3 and BWP-4, RBG2 partially overlaps with the lower boundary of BWP-4, RBG5 partially overlaps with the upper boundary of BWP-4 and the lower boundary of BWP-3, RBG6 overlaps with the upper boundary of BWP-3, RBG7 partially overlaps with the lower boundary of BWP-2, and RBG8 partially overlaps with the upper boundary of BWP-2 and the lower boundary of BWP-1, resulting in the bits corresponding to these RBGs needing to be zeroed, and the finally generated bit pattern is 10110000, 5 RBGs out of 8 RBGs cannot map the PDCCH, and the resource is wasted seriously.

[0104] Referring to the (b) view of FIG. 5 (denoted as FIG. 5(b)), the present embodiment takes the starting frequency domain position of the lowest BWP in the at least one BWP included in the currently effective equivalent BWP as the starting point to divide every 6 RBs to form an RBG corresponding to one bit for indication. Specifically, the at least one BWP is virtually integrated into a complete BWP concept to divide the RBG, and only the overlapping relationship between the upper boundary of the highest BWP in the at least one BWP and the RBG is determined to determine whether the bit corresponding to the last RBG needs to be zeroed. Thus, it is ensured that the PDCCH can be reliably and efficiently mapped when the equivalent BWP is applied. For example, in FIG. 5(b), assuming that BWP-4 is the lowest BWP and the starting frequency domain position is RB10, 7 RBGs of RBG1 to RBG7 are obtained by dividing the union of BWP-1 to BWP-4, wherein the upper boundary of BWP-1 partially overlaps with RBG-7, and the finally generated bit pattern is 1111110, only the last RBG cannot be mapped, greatly improving the resource utilization.

[0105] Further, in response to the channel being the PDCCH, step S201 can specifically include the steps of:

[0106] S2011, the network device maps the PDCCH to the frequency domain resource corresponding to the currently effective equivalent BWP according to the bit pattern. In other words, the PDCCH is mapped to the frequency domain resource corresponding to the currently effective equivalent BWP according to the bit pattern.

[0107] For example, continuing to refer to FIG. 5(b), the network device maps the PDCCH to RBG1 to RBG6 according to the bit pattern of 1111110 to transmit the PDCCH using the currently effective equivalent BWP.

[0108] From the above, by enhancing the frequency domain mapping manner of the PDCCH, it can be ensured that the PDCCH can be reliably and efficiently mapped when the equivalent BWP is applied. The enhancement manner is, for example, adjusting the starting mapping position of the RBG from the existing RB0 to the starting frequency domain position of the lowest BWP, or, for example, virtually integrating all BWP into a complete BWP to determine the overlap relationship with the RBG and determine whether the corresponding bits are zero.

[0109] FIG. 6 is a signaling interaction diagram of a communication method of a third embodiment of the present application. In the present embodiment, the signal transmitted using the currently effective equivalent BWP can include a channel state information reference signal (CSI-RS). The sending end of the CSI-RS can be a network device, and the receiving end can be a UE. That is, in step S201, the network device maps the CSI-RS to the frequency domain resource corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner corresponding to the CSI-RS, and correspondingly, the UE receives the CSI-RS on the frequency domain resource corresponding to the currently effective equivalent BWP.

[0110] Specifically, the currently effective equivalent BWP can be an equivalent downlink BWP, which includes at least one downlink BWP.

[0111] Further, with reference to FIG. 6, in response to the signal to be transmitted being a CSI-RS, step S201 can specifically include the following steps:

[0112] S2012, the network device maps the CSI-RS to the frequency domain resource corresponding to at least part of the at least one BWP. In other words, the channel or signal is mapped to the frequency domain resource corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner, which can include: the CSI-RS is mapped to the frequency domain resource corresponding to at least part of the at least one BWP.

[0113] In some embodiments, for the at least one BWP included in the currently effective equivalent BWP, the frequency domain resource corresponding to each BWP can all have the CSI-RS mapped thereon.

[0114] In some embodiments, when mapped in step S2012, the total number of resource blocks having the CSI-RS mapped thereon in the frequency domain resource corresponding to the at least part of the at least one BWP can be not less than a first threshold. For example, the sum of the RBs having the CSI-RS mapped thereon in the frequency domain resource corresponding to the at least one BWP included in the currently effective equivalent BWP needs to be greater than the first threshold.

[0115] The first threshold value may be, for example, 24, which can be determined according to the minimum number of CSI-RSs that the UE needs to measure. A sufficient number of RBs mapping CSI-RSs helps to ensure that the UE obtains reliable measurement results to accurately evaluate the channel quality.

[0116] Further, in step S2012, any number of BWP mapping CSI-RSs in the at least one BWP can be randomly selected, as long as the total number of RBs mapping CSI-RSs is not less than the first threshold value.

[0117] In some embodiments, in step S2012, the proportion of the number of RBs mapping CSI-RSs in the frequency domain resources corresponding to each BWP in the at least one BWP to the total number of RBs included in the frequency domain resources can be not less than a second threshold value.

[0118] Specifically, the second threshold value can be configured for each BWP, and when mapping CSI-RSs to the frequency domain resources corresponding to the BWP, it is ensured that the proportion of the total number of RBs mapping CSI-RSs to the total number of RBs included in the frequency domain resources corresponding to the BWP is not less than the second threshold value.

[0119] In some embodiments, the second threshold value can be a fixed value, such as a fixed percentage defined by a protocol. The same second threshold value is used for resource mapping of any BWP in the at least one BWP. Further, in step S2012, any number of BWP mapping CSI-RSs in the at least one BWP can be randomly selected, as long as the proportion of the total number of RBs mapping CSI-RSs to the total number of RBs occupied by the BWP is not less than the second threshold value.

[0120] In some embodiments, the second threshold value can be associated with the bandwidth size of the corresponding BWP. For example, the bandwidth of BWP-1 includes 100 RBs, and the second threshold value can be set to 30%. Correspondingly, the proportion of the total number of RBs mapping CSI-RSs in the frequency domain resources corresponding to BWP-1 to 100 RBs is greater than 30%, i.e., the total number of RBs mapping CSI-RSs should be not less than 30 RBs. For another example, the bandwidth of BWP-2 occupies 20 RBs, and the second threshold value can be set to 20%. Correspondingly, the proportion of the total number of RBs mapping CSI-RSs in the frequency domain resources corresponding to BWP-2 to 20 RBs is greater than 20%, i.e., the total number of RBs mapping CSI-RSs should be not less than 4 RBs.

[0121] The second threshold values corresponding to different BWPs can be different, and the network device can dynamically adjust the second threshold values configured for each BWP according to actual conditions. For example, when the interference is more serious, the network device can actively increase the second threshold value to transmit more CSI-RSs.

[0122] In some embodiments, the minimum number of RBs for mapping CSI-RS calculated based on the second threshold and the bandwidth of the BWP can be a fraction, and accordingly, can be rounded down or rounded up, and the number of RBs for mapping CSI-RS is determined based on the rounding result. For example, the rounding down can be specified by a protocol.

[0123] The first / second threshold can be configured by high-layer signaling of the network side or determined by a predefined manner.

[0124] As described above, by taking advantage of the discrete characteristics of at least one BWP in the equivalent BWP, the CSI-RS is preferably mapped on part of the BWP, which not only ensures that a sufficient number of CSI-RS is mapped to ensure that the UE can obtain reliable measurement results, but also saves the frequency domain resources in the equivalent BWP. For example, the BWP in which no CSI-RS is mapped in the at least one BWP can be used for transmitting other signals or channels.

[0125] FIG. 7 is a signaling interaction diagram of a communication method according to a fourth embodiment of the present application. In the present embodiment, the channel transmitted using the currently effective equivalent BWP can include a shared channel, such as a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH).

[0126] In the scenario of transmitting PUSCH, the transmitting end of the PUSCH can be a UE, and the receiving end can be a network device, i.e., the UE maps the PUSCH to the frequency domain resources corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner corresponding to the PUSCH, and accordingly, the network device receives the PUSCH on the frequency domain resources corresponding to the currently effective equivalent BWP. In the present scenario, the currently effective equivalent BWP can specifically be an equivalent uplink BWP, including at least one uplink BWP.

[0127] In the scenario of transmitting PDSCH, the transmitting end of the PDSCH can be a network device, and the receiving end can be a UE, i.e., the network device maps the PDSCH to the frequency domain resources corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner corresponding to the PDSCH, and accordingly, the UE receives the PDSCH on the frequency domain resources corresponding to the currently effective equivalent BWP. In the present scenario, the currently effective equivalent BWP can specifically be an equivalent downlink BWP, including at least one downlink BWP.

[0128] Further, referring to FIG. 7, before step S201 is performed, the communication method according to the present embodiment can further include the following steps:

[0129] S203, the network device sends second information to the UE, and correspondingly, the UE receives the second information. The second information can include at least one first indication field, and the first indication field is used to indicate a mapping relationship between the shared channel and the frequency domain resource corresponding to the currently effective equivalent BWP.

[0130] Specifically, the first indication field can be a frequency domain resource allocation (FDRA) field, which is used to allocate corresponding frequency domain resources for each BWP. In this embodiment, since the concept of equivalent BWP is introduced, the FDRA field needs to be enhanced.

[0131] In some embodiments, the number of at least one first indication field can be one, and the first indication field can correspond to the union of the frequency domain resources corresponding to each of the at least one BWP.

[0132] Specifically, at least one BWP included in the currently effective equivalent BWP can be aggregated into one whole, and then indicated by a traditional RBG level or a resource indicator value (RIV) level.

[0133] In this example, the frequency domain interval between each BWP is ignored, that is, the first indication field only allocates the frequency domain resources of each BWP, and does not allocate the frequency domain resources corresponding to the bandwidth between each BWP.

[0134] In some embodiments, the number of at least one first indication field can be one, and the first indication field corresponds to the total bandwidth occupied by the at least one BWP in the frequency domain.

[0135] Specifically, a whole (including the bandwidth between each BWP) can be aggregated from the lowest BWP to the highest BWP in the at least one BWP, and indicated uniformly by one FDRA field.

[0136] That is, the first indication field allocates a continuous frequency domain resource, which corresponds to a continuous bandwidth between the starting frequency domain position of the lowest BWP and the ending frequency domain position of the highest BWP. Further, the continuous frequency domain resource that does not belong to the bandwidth of the equivalent BWP can be pre-configured (such as protocol definition or high layer signaling configuration). The UE and the network device determine the frequency domain resource that cannot be mapped in the frequency domain resource allocated by the first indication field according to the first indication field and the pre-configuration.

[0137] In some embodiments, the at least one first indication field can correspond to the at least one BWP one-to-one. Specifically, at least one FDRA field can be introduced, where each FDRA field corresponds to one of the equivalent BWPs respectively. Thus, for each BWP included in the currently effective equivalent BWP, the frequency domain resources of the BWP are specially allocated by the corresponding FDRA field.

[0138] For example, the at least one first indication field can be carried in the DCI. Assuming that the currently effective equivalent BWP includes 4 BWPs, accordingly, 4 first indication fields can be carried in the DCI to respectively correspond to the frequency domain allocation indication of the 4 BWPs. Specifically, each first indication field is expressed by 2 bits, and then 8 bits in the DCI are used to indicate the 4 first indication fields.

[0139] In some embodiments, the number of the at least one first indication field can be one, and the first indication field can include at least one bit segment, where the at least one bit segment corresponds to the at least one BWP one-to-one.

[0140] Specifically, the existing one FDRA field can be divided into several segments (i.e., bit segments) under the premise of the existing one FDRA field, where each bit segment corresponds to the frequency domain allocation indication of one BWP.

[0141] Assuming that the currently effective equivalent BWP includes 3 BWPs, accordingly, one 6-bit first indication field can be used in the DCI to correspond to the frequency domain allocation indication of the 3 BWPs. Specifically, the 6-bit first indication field is logically divided into one bit segment by 2 bits, which respectively corresponds to the frequency domain allocation indication of one BWP.

[0142] Further, in response to the channel being a shared channel, step S201 can specifically include the following step:

[0143] S2013, the network device or the UE maps the shared channel to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field. In other words, the shared channel is mapped to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field.

[0144] For example, the network device maps the PDSCH to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field.

[0145] For another example, the UE maps the PUSCH to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field.

[0146] In one embodiment, the step S2013 can specifically include: mapping the repeated transmission of the shared channel or the multiple shared channels to the respective frequency domain resources of the at least one BWP according to the indication of the at least one first indication field and a preset mapping order.

[0147] Specifically, the preset mapping order can be determined by a pre-defined pattern. For example, a protocol or high-layer signaling can pre-configure multiple pre-defined patterns, and then the network device can dynamically indicate one of the multiple pre-defined patterns as the preset mapping order for this transmission by means of dynamic indication such as DCI.

[0148] Further, the repeated transmission of the shared channel can be, for example, the repeated transmission of PUSCH.

[0149] Further, the transmission of the multiple shared channels can be, for example, M-TTI scheduling, where TTI is the basic time unit of dynamically scheduled resources, and each dynamic scheduling is one TTI. M-TTI scheduling refers to that one DCI schedules multiple PUSCHs (i.e., multiple PUSCH scheduling), where each PUSCH is transmitted on a different BWP.

[0150] For example, referring to FIG. 8, assuming that the currently effective equivalent BWP includes 4 BWPs, i.e., BWP-1 to BWP-4, and the scenario is PUSCH repetition transmission at the UE side, the preset mapping order can be 4, 3, 2, 1. Accordingly, the UE maps the PUSCH to the frequency domain resource corresponding to BWP-4 in the first PUSCH repetition transmission (denoted as PUSCH-rep1), i.e., the hatched part in the figure. In the second PUSCH repetition transmission (denoted as PUSCH-rep2), the PUSCH is mapped to the frequency domain resource corresponding to BWP-3, i.e., the hatched part in the figure. In the third PUSCH repetition transmission (denoted as PUSCH-rep3), the PUSCH is mapped to the frequency domain resource corresponding to BWP-2, i.e., the hatched part in the figure. In the fourth PUSCH repetition transmission (denoted as PUSCH-rep4), the PUSCH is mapped to the frequency domain resource corresponding to BWP-1, i.e., the hatched part in the figure. Further, the bandwidth size occupied on each BWP during each PUSCH mapping is determined according to the first indication field corresponding to the BWP.

[0151] Similarly, the preset mapping order can also be 1, 2, 3, 4; 1, 3, 2, 4; 3, 2, 4, 1, etc.

[0152] For example, in the case of multiple PUSCH scheduling in the preset mapping order 1, 3, 2, 4, the UE can map the first PUSCH to at least part of the bandwidth of BWP-1 according to the FDRA field (or the bit segment in the FDRA field) corresponding to BWP-1, map the second PUSCH to at least part of the bandwidth of BWP-3 according to the FDRA field (or the bit segment in the FDRA field) corresponding to BWP-3, map the third PUSCH to at least part of the bandwidth of BWP-2 according to the FDRA field (or the bit segment in the FDRA field) corresponding to BWP-2, and map the fourth PUSCH to at least part of the bandwidth of BWP-4 according to the FDRA field (or the bit segment in the FDRA field) corresponding to BWP-4.

[0153] In this way, higher frequency domain selectivity gain can be obtained when performing PUSCH repetition transmission or multiple PUSCH scheduling.

[0154] In a variant, the preset mapping order can also be indicated by the network device in advance. For example, the preset mapping order of the current multiple PUSCH scheduling can be indicated by RRC signaling.

[0155] In a specific implementation, step S2013 can specifically include: mapping the shared channel to a first part of resource blocks corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field in the first time unit; and mapping the shared channel to a second part of resource blocks corresponding to the currently effective equivalent BWP by shifting a preset offset in the frequency domain based on the first part of resource blocks in the second time unit.

[0156] Specifically, the preset offset can be configured by a higher layer, such as by higher layer signaling such as RRC signaling.

[0157] Further, for any of the first time unit and the second time unit, the time unit can be a communication granularity of the UE and the network device in the time domain. For example, the time unit can be a slot, a mini-slot (a time unit shorter than a slot), a subframe, a symbol, a frame, etc. Next, a slot is taken as an example for specific description. In this embodiment, the UE performs PUSCH repetition transmission or multiple PUSCH scheduling in a frequency hopping manner in adjacent two slots.

[0158] In some embodiments, referring to FIG. 9, the currently effective equivalent BWP includes BWP-1, BWP-2, BWP-3 and BWP-4, and the number of at least one first indication field is one (for example, one FDRA field indicates the frequency domain resource allocation of 4 BWPs). One possible implementation (denoted as assumption 1) is that the frequency domain resource of the PDSCH or PUSCH indicated by the DCI is the resource indication on the virtual continuous resource bandwidth formed by splicing all the first type BWPs (that is, all the BWPs included in the equivalent BWP, which is exemplarily shown in FIG. 9 as BWP-1 to BWP-4), as shown in view (a) of FIG. 9 (denoted as FIG. 9(a)). Another possible implementation (denoted as assumption 2) is to directly indicate the frequency domain resource of the PDSCH or PUSCH, as shown in view (b) of FIG. 9 (denoted as FIG. 9(b)), but the gap frequency domain resource between the first type BWPs on the frequency domain cannot be used for transmission or mapping of the PDSCH or PUSCH. Regardless of the frequency domain resource indication mode of assumption 1 or assumption 2, the UE can determine the frequency domain resource interval on BWP-1 to BWP-4 that is specifically configured for transmission of the PDSCH or PUSCH, as shown by the diagonal filled area in FIG. 9(a) and FIG. 9(b).

[0159] Further, the 4 BWPs can be taken as a whole, and frequency hopping is performed according to the existing frequency hopping formula.

[0160] For example, referring to view (c) of FIG. 9 (denoted as FIG. 9(c)), the UE maps the PUSCH to the partial bandwidth of BWP-4 (diagonal filled part in the figure), the entire bandwidth of BWP-3 and the partial bandwidth of BWP-2 (diagonal filled part in the figure) in slot 0, that is, the diagonal filled part in BWP-1, BWP-2, BWP-3 and BWP-4 corresponding to slot 0 is the first part of resource blocks. Further, taking the starting frequency domain position of the first part of resource blocks (denoted as f0 in the figure) as a reference, the starting frequency domain position of the second part of resource blocks (denoted as f1 in the figure) is determined by upwardly shifting a preset offset (RBoffset), and the size of the second part of resource blocks is equal to that of the first part of resource blocks, so that it can be determined that the second part of resource blocks occupies the diagonal filled part in BWP-2 and BWP-1 corresponding to slot 1. Correspondingly, the UE maps the PUSCH to the bandwidth of the diagonal filled part in BWP-2 corresponding to slot 1 and the bandwidth of the diagonal filled part in BWP-1 corresponding to slot 1 in slot 1, realizing frequency hopping transmission of the PUSCH.

[0161] Further, in FIG. 9(c), in each BWP corresponding to the same slot, the PUSCH mapped by the diagonal filled area is an independent PUSCH.

[0162] Further, in this example, the ending frequency domain position of the second part of resource blocks does not exceed the ending frequency domain position of the highest BWP among the at least one BWP, as shown in FIG. 9(c).

[0163] In some embodiments, the second part of resource blocks is cyclically arranged in the frequency domain within the frequency domain resources corresponding to the currently effective equivalent BWP. That is, the cyclic frequency domain mapping is allowed, provided that there is no frequency domain intersection between the two frequency hops.

[0164] Specifically, a part of the second part of resource blocks can occupy the frequency domain starting segment of the currently effective equivalent BWP, and the remaining part of the second part of resource blocks occupies the frequency domain ending segment of the currently effective equivalent BWP. Further, the second part of resource blocks does not overlap with the first part of resource blocks, that is, the ending frequency domain position of the second part of resource blocks is not higher than or equal to the starting frequency domain position of the first part of resource blocks in the frequency domain.

[0165] Referring to FIG. 10, the currently effective equivalent BWP includes BWP-1, BWP-2, BWP-3 and BWP-4, and the number of at least one first indication domain is one (for example, one FDRA domain indicates the frequency domain resource allocation of the four BWPs), for example, the indication manner of FIG. 9(a) or FIG. 9(b) can be adopted. Further, the four BWPs can be taken as a whole to hop in the cyclic frequency domain mapping manner. For example, the UE maps the PUSCH to the partial bandwidth of BWP-4 (the hatched part in the figure), the entire bandwidth of BWP-3 and the partial bandwidth of BWP-2 (the hatched part in the figure) in the slot 0, that is, the hatched part in BWP-1, BWP-2, BWP-3 and BWP-4 corresponding to the slot 0 is the first part of resource blocks. Further, taking the starting frequency domain position (indicated by f0 in the figure) of the first part of resource blocks as the reference, the starting frequency domain position (indicated by f1 in the figure) of the second part of resource blocks is determined by upwardly shifting a preset offset (RBoffset), and the size of the second part of resource blocks is equal to that of the first part of resource blocks.

[0166] Since the size of the second part of resource blocks exceeds the bandwidth size between f1 and f2 (the ending frequency domain position of BWP-1), the part of the second part of resource blocks exceeding the bandwidth size of f2-f1 continues to be mapped cyclically from the starting frequency domain position of BWP-4. The ending frequency domain position f3 of the second part of resource blocks mapped on BWP-4 is lower than f0. In other words, it can be determined that the second part of resource blocks occupies the hatched part in BWP-1 and BWP-4 corresponding to the slot 1. Accordingly, the UE maps the PUSCH to the bandwidth of the hatched part in BWP-1 and the bandwidth of the hatched part in BWP-4 in the slot 1, to realize the frequency hopping transmission of the PUSCH.

[0167] Compared with the prior art, the embodiment allows cyclic frequency domain mapping and further improves the frequency domain selectivity gain when frequency hopping. In some embodiments, the network device can adjust the specific value of the preset offset to implement frequency hopping in a manner that does not exceed the upper boundary of the equivalent BWP as shown in FIG. 9(c), or in a manner that allows cyclic frequency domain mapping as shown in FIG. 10.

[0168] In one specific implementation, when step S2013 is performed, the second part of resource blocks is offset relative to the first part of resource blocks within the same group of BWPs, wherein the same group of BWPs can include at least one part of at least one BWP.

[0169] For example, referring to FIG. 11, the currently effective equivalent BWP includes BWP-1, BWP-2, BWP-3, and BWP-4. The network device configures four first indication fields (denoted as FDRA field 1 to FDRA field 4, respectively) to respectively indicate the frequency domain allocation indication of each BWP. Correspondingly, the UE maps PUSCH1 to the partial bandwidth of BWP-1 in slot 0 according to the frequency domain resource allocation indicated by FDRA field 1 (the hatched area in the figure), maps PUSCH2 to the partial bandwidth of BWP-2 in slot 0 according to the frequency domain resource allocation indicated by FDRA field 2 (the hatched area in the figure), maps PUSCH3 to the partial bandwidth of BWP-3 in slot 0 according to the frequency domain resource allocation indicated by FDRA field 3 (the hatched area in the figure), and maps PUSCH4 to the partial bandwidth of BWP-4 in slot 0 according to the frequency domain resource allocation indicated by FDRA field 4 (the hatched area in the figure). PUSCH1 to PUSCH4 can be four independent PUSCHs or four repeated transmissions of one PUSCH.

[0170] Further, in the example of FIG. 11, each BWP is a separate group, that is, from slot 0 to slot 1, the UE performs frequency hopping in each BWP, respectively.

[0171] Taking frequency hopping in BWP-4 as an example, the hatched area in BWP-4 corresponding to slot 0 is the first part of resource blocks. Taking the starting frequency domain position (denoted as f0 in the figure) of the first part of resource blocks as a reference, the starting frequency domain position (denoted as f1 in the figure) of the second part of resource blocks is determined by upwardly offsetting a preset offset (denoted as RBoffset1). The size of the second part of resource blocks is equal to the size of the first part of resource blocks, so that the second part of resource blocks can occupy the hatched area in BWP-4 corresponding to slot 1. Correspondingly, the UE maps PUSCH4 to the bandwidth of the hatched area in BWP-4 corresponding to slot 1 to implement frequency hopping transmission of PUSCH4.

[0172] Similarly, for the frequency hopping of BWP-3, the diagonal fill area in BWP-3 corresponding to the time slot 0 is the first part of resource blocks. The starting frequency domain position of the second part of resource blocks is determined by offsetting a preset offset (denoted as RBoffset2) from the starting frequency domain position (denoted as f2 in the figure) of the first part of resource blocks. The size of the second part of resource blocks is equal to that of the first part of resource blocks, so that the diagonal fill area in BWP-3 corresponding to the time slot 1 is determined to be occupied by the second part of resource blocks. Correspondingly, the UE maps the PUSCH 3 to the bandwidth of the diagonal fill area in BWP-3 corresponding to the time slot 1, to realize the frequency hopping transmission of the PUSCH 3.

[0173] Similarly, for the frequency hopping of BWP-2, the diagonal fill area in BWP-2 corresponding to the time slot 0 is the first part of resource blocks. The starting frequency domain position of the second part of resource blocks is determined by offsetting a preset offset (denoted as RBoffset3) from the starting frequency domain position (denoted as f4 in the figure) of the first part of resource blocks. The size of the second part of resource blocks is equal to that of the first part of resource blocks, so that the diagonal fill area in BWP-2 corresponding to the time slot 1 is determined to be occupied by the second part of resource blocks. Correspondingly, the UE maps the PUSCH 2 to the bandwidth of the diagonal fill area in BWP-2 corresponding to the time slot 1, to realize the frequency hopping transmission of the PUSCH 2.

[0174] Similarly, for the frequency hopping of BWP-1, the diagonal fill area in BWP-1 corresponding to the time slot 0 is the first part of resource blocks. The starting frequency domain position of the second part of resource blocks is determined by offsetting a preset offset (denoted as RBoffset4) from the starting frequency domain position (denoted as f6 in the figure) of the first part of resource blocks. The size of the second part of resource blocks is equal to that of the first part of resource blocks, so that the diagonal fill area in BWP-1 corresponding to the time slot 1 is determined to be occupied by the second part of resource blocks. Correspondingly, the UE maps the PUSCH 1 to the bandwidth of the diagonal fill area in BWP-1 corresponding to the time slot 1, to realize the frequency hopping transmission of the PUSCH 1.

[0175] In some embodiments, RBoffset1 to RBoffset4 can be independently configured, and the specific values of the respective preset offsets can be different or the same.

[0176] In some embodiments, the concept of the aforementioned group can be used to perform repeated transmission in a group unit. For example, referring to FIG. 12, the currently effective equivalent BWP includes BWP-1, BWP-2, BWP-3 and BWP-4, wherein BWP-1 and BWP-2 belong to the same group, and BWP-3 and BWP-4 belong to the same group. The network device configures 2 first indication fields to respectively indicate the frequency domain resource allocation of the two groups of BWPs.

[0177] Correspondingly, the UE maps the first repetition of the PUSCH (denoted as PUSCH-rep1) to the partial bandwidth of BWP-3 and BWP-4 (hatched area in the figure) in slot 0 according to the frequency domain resource allocation indicated by FDRA field 1, and maps the second repetition of the PUSCH (denoted as PUSCH-rep2) to the partial bandwidth of BWP-1 and BWP-2 (hatched area in the figure) in slot 1 according to the frequency domain resource allocation indicated by FDRA field 2.

[0178] In this way, the enhancement of inter-slot hopping can be achieved, and the equivalent BWPs can be fully utilized for the repetition transmission of a shared channel (e.g., PUSCH) or multiple PUSCH scheduling.

[0179] In one implementation, step S2013 can specifically include: splitting the shared channel in the time domain into multiple segments according to the indication of the at least one first indication field, and mapping the multiple segments to at least one BWP included in the currently effective equivalent BWP, respectively.

[0180] Specifically, the number of the multiple segments is not greater than the total number of the at least one BWP.

[0181] In some embodiments, the PUSCH can be split according to the total number of the at least one BWP, and each segment is mapped to a corresponding BWP. For example, referring to the (a) view of FIG. 13 (denoted as FIG. 13(a)), the currently effective equivalent BWP includes four BWPs, i.e., BWP-1 to BWP-4, and accordingly, one PUSCH transmission can be split into four segments, and the four segments are transmitted on the four BWPs in the same time slot by frequency hopping. The specific time-frequency position of each segment of the PUSCH mapped to the corresponding BWP (i.e., the hatched area in the figure) can be indicated by the first indication field corresponding to the BWP.

[0182] In some embodiments, the number of the multiple segments can be less than the total number of the at least one BWP, and accordingly, a single segment can be mapped to at least part of the at least one BWP. For example, referring to the (b) view of FIG. 13 (denoted as FIG. 13(b)), the currently effective equivalent BWP includes four BWPs, i.e., BWP-1 to BWP-4, and one PUSCH transmission is split into two segments, and the two segments are transmitted on two groups of BWPs in the same time slot by frequency hopping. The specific time-frequency position of each segment of the PUSCH mapped to the corresponding BWP (i.e., the hatched area in the figure) can be indicated by the first indication field corresponding to the BWP.

[0183] Thus, the enhancement of intra-slot hopping can be achieved, and the equivalent BWP is fully utilized for repeated transmission or multiple PUSCH scheduling of a shared channel (e.g., PUSCH).

[0184] FIG. 14 is a signaling interaction diagram of a communication method according to a fifth embodiment of the present application. In the present embodiment, the signal transmitted using the currently effective equivalent BWP can include a sounding reference signal (SRS). The transmitting end of the SRS can be a network device, and the receiving end can be a UE. That is, in step S201, the network device maps the SRS to the frequency domain resource corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner corresponding to the SRS, and correspondingly, the UE receives the SRS on the frequency domain resource corresponding to the currently effective equivalent BWP. The UE can determine the signal quality of the current communication channel according to the received SRS.

[0185] Specifically, the currently effective equivalent BWP can be an equivalent downlink BWP, which includes at least one downlink BWP.

[0186] Further, with reference to FIG. 14, before performing step S201, the communication method according to the present embodiment can further include the following step:

[0187] S202, the network device sends first information to the UE, and correspondingly, the UE receives the first information. The first information includes a bitmap, and a bit in the bitmap is used to indicate whether the RBG corresponding to the bit is mapped. The bandwidth corresponding to the bitmap is the union of the frequency domain resources corresponding to the at least one BWP.

[0188] The specific content of the first information and the bitmap can refer to the related description of the second embodiment shown in FIGS. 4 and 5. The difference from the second embodiment is that, in the present embodiment, the frequency domain starting position of the lowest BWP in the at least one BWP included in the currently effective equivalent BWP is taken as the starting point, and the union of the frequency domain resources corresponding to the at least one BWP is divided into at least one RBG in units of 4 RBs. The number of RBs included in a single RBG can be determined according to the protocol, for example, the existing protocol stipulates that the RBG used for mapping PDCCH includes 6 RBs, and the RBG used for mapping SRS includes 4 RBs.

[0189] Further, in response to the channel being an SRS, step S201 can specifically include the following step:

[0190] S2014, the network device maps the SRS to the frequency domain resource corresponding to the currently effective equivalent BWP according to the bitmap. In other words, the SRS is mapped to the frequency domain resource corresponding to the currently effective equivalent BWP according to the bitmap.

[0191] For example, continuing to refer to FIG. 5(b), the network device maps the SRS to RBG1 to RBG6 according to the bitmap of 1111110 to transmit the SRS using the currently effective equivalent BWPs.

[0192] In some embodiments, the network device can ensure that each of the equivalent BWPs is an integer multiple of 4 RBs through the configuration information. In this way, it can be ensured that the value of each bit in the bitmap is 1, and all of the currently effective equivalent BWPs can be used to map the SRS, maximizing the resource utilization of the discrete bandwidth.

[0193] In some embodiments, when performing step S2014, it can be determined that the part of the single RBG that is beyond the boundary (lower boundary or upper boundary) of the corresponding BWP is not transmitted. In other words, the bit corresponding to the RBG can not be set to zero, but the frequency domain resource utilization can be improved by mapping the SRS to the RBs in the RBG that overlap with the corresponding BWP.

[0194] In one specific implementation, in the scenario of transmitting the SRS using the currently effective equivalent BWPs, the frequency hopping rule can be redefined, for example, to hop at the granularity of a single BWP in the equivalent BWPs.

[0195] Specifically, the frequency domain position of the frequency hopping of the SRS is configured by the four parameters Csrs,Bsrs,bhop,nrrc plus a lookup table. For the specific content of the four parameters, please refer to the relevant description in section 6.4.1.4 of protocol 38.211, which will not be repeated here.

[0196] Further, in response to the signal transmitted using the currently effective equivalent BWPs being SRS, each of the at least one BWP can share at least one of the following parameters: bandwidth configuration parameter Csrs; bandwidth configuration parameter Bsrs; frequency hopping parameter bhop; frequency domain starting position parameter nrrc.

[0197] For example, for each of the at least one BWP, the same Csrs,Bsrs,bhop,nrrc parameters can be shared.

[0198] For example, for each of the at least one BWP, the same C srs, B srs, b hop, n rrc can be shared. FIG. 15 exemplarily shows the specific mapping result of PUSCH inter-slot frequency hopping on the frequency domain resource corresponding to each BWP (corresponding to the diagonal line filled area in the figure) when the equivalent BWP includes four BWPs (BWP-1 to BWP-4) each having independent C srs, B srs, b hop, n rrc parameters. As can be seen from FIG. 15, when each BWP does not share parameters, the resource mapping after frequency hopping is relatively messy, which may affect the communication performance. Therefore, preferably, each BWP can share at least one parameter.

[0199] For example, for each of the at least one BWP, the same C srs, B srs, b hop can be shared.

[0200] For example, for each of the at least one BWP, the same n rrc can be shared.

[0201] For example, for each of the at least one BWP, the same b hop can be shared.

[0202] Based on the above parameter fusion idea (i.e., each BWP shares parameters), the following SRS-related parameters can also be considered for parameter fusion: repetition transmission times, comb size and offset Comb size / offset, and antenna port configuration.

[0203] In some embodiments, the parameter configuration of a certain specific BWP in the at least one BWP can be used as a reference, and the parameter configuration of other BWPs in the at least one BWP is determined with reference to the parameter configuration of the specific BWP.

[0204] The specific BWP can be indicated by configuration information. For example, the BWP with the largest bandwidth in the at least one BWP can be selected as the specific BWP.

[0205] In some embodiments, the shared parameter configuration can be determined according to the respective parameter configurations of the at least one BWP. For example, the current effective equivalent BWP includes five BWPs, three of which are configured with the same parameter configuration 1 (such as a set of C srs, B srs, b hop, n rrc), and the remaining two BWPs are configured with parameter configuration 2 and parameter configuration 3, respectively. Then, the UE and the network device can determine the parameters in the parameter configuration 1 as the shared parameters of the five BWPs.

[0206] Therefore, the frequency domain mapping mode of the SRS can be enhanced, on one hand, the discrete characteristics of at least one BWP in the equivalent BWP are fully utilized, and the transmission opportunity of the SRS is increased, and on the other hand, the SRS transmitted on each BWP is received by the UE as regularly as possible (for example, in the same or similar time unit) through parameter fusion. Therefore, the UE can obtain better channel sounding results with less power consumption.

[0207] Therefore, by using the embodiment, the originally scattered resources can be integrated for the UE by defining the BWP (that is, the equivalent BWP) composed of a series of discontinuous resources (that is, one or more independent BWPs). Further, on the basis of the concept of the equivalent BWP, according to the characteristics of the discontinuity of the equivalent BWP in the frequency domain, the frequency domain mapping mode is enhanced according to the type of the currently transmitted signal or channel, and it is ensured that any one of the UE and the network device can reliably and efficiently transmit the signal or channel using the equivalent BWP. Therefore, the bandwidth resource utilization rate is greatly improved.

[0208] FIG. 16 is a structural schematic diagram of a communication device 3 of a sixth embodiment of the application. Those skilled in the art understand that the communication device 3 described in the embodiment can be used to implement the method technical solutions described in the embodiments described in FIGS. 2 to 15.

[0209] Specifically, referring to FIG. 16, the communication device 3 described in the embodiment can include a transmission module 31 configured to transmit a channel or a signal using a currently effective equivalent bandwidth part BWP, the channel or the signal being mapped to frequency domain resources corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping mode, the preset frequency domain resource mapping mode being associated with the type of the channel or the signal; wherein each of the equivalent BWPs includes at least one BWP, and a single BWP is continuous in the frequency domain.

[0210] For more details about the working principle and working mode of the communication device 3, please refer to the related description in FIGS. 2 to 15, which will not be repeated here.

[0211] In specific implementation, the communication device 3 described above can correspond to a chip with a communication function in the UE or the network device, or a chip with a data processing function, such as a system on a chip (SOC), a baseband chip, etc.; or a chip module including a chip with a communication function in the UE or the network device; or a chip module including a chip with a data processing function, or the UE or the network device.

[0212] In specific implementations, each module / unit contained in each device / product described in the above embodiments can be a software module / unit or a hardware module / unit, or can be partially a software module / unit and partially a hardware module / unit.

[0213] For example, for each device / product applied to or integrated in a chip, each module / unit contained therein can be implemented in the form of hardware such as a circuit, or at least part of the modules / units can be implemented in the form of a software program running on a processor integrated in the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as a circuit; for each device / product applied to or integrated in a chip module, each module / unit contained therein can be implemented in the form of hardware such as a circuit, and different modules / units can be located in the same component (for example, a chip, a circuit module, etc.) or different components of the chip module, or at least part of the modules / units can be implemented in the form of a software program running on a processor integrated in the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as a circuit; for each device / product applied to or integrated in a terminal, each module / unit contained therein can be implemented in the form of hardware such as a circuit, and different modules / units can be located in the same component (for example, a chip, a circuit module, etc.) or different components of the terminal, or at least part of the modules / units can be implemented in the form of a software program running on a processor integrated in the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as a circuit.

[0214] The embodiments of the present application further provide a computer readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and has stored thereon a computer program. The computer program is run in a processor to perform the steps of the communication method provided by any of the above embodiments. Preferably, the storage medium can include a computer readable storage medium such as a non-volatile memory or a non-transitory memory. The storage medium can include ROM, RAM, magnetic or optical disk, etc.

[0215] The embodiments of the present application further provide another communication device, which includes a memory and a processor. The memory has stored thereon a computer program run in the processor. The processor executes the computer program to perform the steps of the communication method provided by the corresponding embodiments of FIG. 2 to FIG. 15. The communication device can be integrated in a UE, or the communication device can be, for example, a UE. Alternatively, the communication device can be integrated in a network device, or the communication device can be, for example, a network device.

[0216] The embodiment of the present application further provides a computer program product comprising computer programs / instructions which, when executed by a processor, implement the steps of the method of the embodiment shown in FIGS. 2 to 15.

[0217] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by programs instructing relevant hardware, and the programs can be stored in a computer readable storage medium, which can include ROM, RAM, magnetic disk or optical disk, etc.

[0218] The technical solutions of the present application can be applied to a 5G (5th generation) communication system, and can also be applied to 4G and 3G communication systems, and can also be applied to various communication systems evolved in the future, such as 6G, 7G, etc.

[0219] The technical solutions of the present application are also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, Vehicle-to-Everything (vehicle-to-anything communication) architecture.

[0220] The 5G CN described in the embodiments of the present application can also be referred to as a new core, or 5G New Core, or next generation core (NGC), etc. The 5G-CN is independent of the existing core network, such as the evolved packet core (EPC).

[0221] The base station (BS) in the embodiments of the present application can also be referred to as a base station device, which is a device deployed in a wireless access network to provide wireless communication functions. For example, devices providing base station functions in 2G networks include base transceiver stations (BTS) and base station controllers (BSC), devices providing base station functions in 3G networks include NodeB and radio network controllers (RNC), devices providing base station functions in 4G networks include evolved NodeB (eNB), in wireless local area networks (WLAN), devices providing base station functions are access points (AP), devices providing base station functions in 5G New Radio (NR) include continued evolution of NodeB (gNB), and devices providing base station functions in future new communication systems, etc.

[0222] The terminal in the embodiments of the present application can refer to various forms of user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), remote station, remote terminal, mobile device, user terminal, terminal device, wireless communication device, user agent or user equipment. The terminal device can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc. The embodiments of the present application are not limited thereto.

[0223] It should be understood that the term "and / or" herein only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent three cases of A alone, A and B together, and B alone. In addition, the character " / " herein represents that the front and rear associated objects are in an "or" relationship.

[0224] The "multiple" appearing in the embodiments of the present application refers to two or more.

[0225] The first, second and the like appearing in the embodiments of the present application are only for illustrative and distinguishing description objects, and there is no order difference, nor represent a special limitation on the number of devices in the embodiments of the present application, which cannot constitute any limitation on the embodiments of the present application.

[0226] The "connection" appearing in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection to realize communication between devices, which is not limited by the embodiments of the present application. The "network" and "system" appearing in the embodiments of the present application represent the same concept, and the communication system is the communication network.

[0227] It should be appreciated that in the embodiments of the present application, the processor can be a central processing unit (CPU), and the processor can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic components, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0228] It should also be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example but not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct memory bus random access memory (DRAM) (DR RAM).

[0229] The above-described embodiments can be implemented in part or in whole through software, hardware, firmware or any combination thereof. When implemented in software, the above-described embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When loaded and executed by a computer, the computer instructions or computer programs cause the computer to perform the processes or functions described in the embodiments of the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through a wired (for example, infrared, wireless, microwave, etc.) manner. The computer-readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. containing a set of one or more available media. The available media can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid state disk.

[0230] It should be understood that the size of the sequence number of each process described above does not mean the order of execution in various embodiments of the present application. The execution order of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0231] In several embodiments provided in the present application, it should be understood that the disclosed methods, devices and systems can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed mutual units can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0232] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected to achieve the purpose of the embodiment scheme according to actual needs. In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically included separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of hardware plus software function unit.

[0233] The integrated unit realized in the form of software function unit can be stored in a computer readable storage medium. The software function unit is stored in a storage medium, including a plurality of instructions for making a computer device (which can be a personal computer, a server, or a network device, etc.) execute part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and various program code storage media.

[0234] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the scope of the present application, therefore the protection scope of the present application should be limited by the scope defined by the claims.

Claims

1. A communication method, comprising: transmitting a channel or a signal using a currently active equivalent bandwidth part (BWP), wherein the channel or the signal is mapped to frequency domain resources corresponding to the currently active equivalent BWP according to a preset frequency domain resource mapping manner, and the preset frequency domain resource mapping manner is associated with a type of the channel or the signal; and each of the equivalent BWPs comprises at least one BWP, and each of the BWPs is continuous in the frequency domain. 2.The method of claim 1, further comprising: receiving first information, wherein the first information comprises a bitmap, and each bit in the bitmap is used to indicate whether a resource block group corresponding to the bit is mapped, and a bandwidth corresponding to the bitmap is a union of frequency domain resources corresponding to the at least one BWP; and the channel or the signal is mapped to the frequency domain resources corresponding to the currently active equivalent BWP according to the preset frequency domain resource mapping manner, comprising: in response to the channel being a physical downlink control channel (PDCCH), mapping the PDCCH to the frequency domain resources corresponding to the currently active equivalent BWP according to the bitmap; or in response to the signal being a sounding reference signal (SRS), mapping the SRS to the frequency domain resources corresponding to the currently active equivalent BWP according to the bitmap.

3. The method of claim 2, wherein, a frequency domain starting position of a resource block group corresponding to a first bit in the bitmap is the same as a frequency domain starting position of a lowest BWP, and the lowest BWP is a BWP with the lowest frequency domain starting position in the at least one BWP.

4. The method of claim 2 or 3, wherein, in response to a frequency domain ending position of a highest BWP being located at a middle position of a resource block group, a bit corresponding to the resource block group in the bitmap is zero, and the highest BWP is a BWP with the highest frequency domain starting position in the at least one BWP.

5. The method of any one of claims 1 to 4, wherein, the channel or the signal is mapped to the frequency domain resources corresponding to the currently active equivalent BWP according to the preset frequency domain resource mapping manner, comprising: in response to the signal being a channel state information reference signal (CSI-RS), mapping the CSI-RS to frequency domain resources corresponding to at least part of the at least one BWP.

6. The method of claim 5, wherein, a total number of resource blocks of the CSI-RS mapped in the frequency domain resources corresponding to the at least part of the at least one BWP is not less than a first threshold; or a proportion of a number of resource blocks of the CSI-RS mapped in frequency domain resources corresponding to each of the at least part of the at least one BWP to a total number of resource blocks included in the frequency domain resources is not less than a second threshold. 7.The method of any one of claims 1 to 6, further comprising: receiving second information, wherein the second information comprises at least one first indication field, and the first indication field is used to indicate a mapping relationship between a shared channel and frequency domain resources corresponding to the currently active equivalent BWP; and the channel or the signal is mapped to the frequency domain resources corresponding to the currently active equivalent BWP according to the preset frequency domain resource mapping manner, comprising: in response to the channel being a shared channel, mapping the shared channel to the frequency domain resources corresponding to the currently active equivalent BWP according to an indication of the at least one first indication field.

8. The method of claim 7, wherein, The number of the at least one first indication field is one, and the first indication field corresponds to a union of frequency domain resources corresponding to the at least one BWP or a total bandwidth occupied by the at least one BWP in the frequency domain; or The at least one first indication field corresponds to the at least one BWP one by one; or The number of the at least one first indication field is one, and the first indication field includes at least one bit segment, and the at least one bit segment corresponds to the at least one BWP one by one.

9. The method of claim 7 or 8, wherein, The mapping of the shared channel to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field includes: According to the indication of the at least one first indication field and a preset mapping order, the repeated transmission of the shared channel or the mapping of a plurality of shared channels to the frequency domain resources corresponding to the at least one BWP respectively.

10. The method of claim 7 or 8, wherein, The mapping of the shared channel to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field includes: In a first time unit, the shared channel is mapped to a first part of resource blocks corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field; In a second time unit, a second part of resource blocks corresponding to the currently effective equivalent BWP is obtained by shifting upwards by a preset offset amount in the frequency domain based on the first part of resource blocks, and the shared channel is mapped to the second part of resource blocks.

11. The method of claim 10, wherein, The second part of resource blocks is cyclically arranged in the frequency domain in the frequency domain resources corresponding to the currently effective equivalent BWP.

12. The method of claim 11, wherein, The second part of resource blocks does not overlap with the first part of resource blocks.

13. The method of claim 10, wherein, Within the same group of BWPs, the second part of resource blocks is offset relative to the first part of resource blocks, and the same group of BWPs includes at least part of the at least one BWP.

14. The method of claim 7 or 8, wherein, The mapping of the shared channel to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field includes: According to the indication of the at least one first indication field, the shared channel is split into a plurality of segments in the time domain, and the plurality of segments are respectively mapped to the at least one BWP.

15. The method of claim 14, wherein, The number of the plurality of segments is not greater than the total number of the at least one BWP.

16. The method of claim 14 or 15, wherein, A single segment is mapped to at least part of the at least one BWP.

17. The method of any one of claims 1 to 16, wherein, In response to the signal being SRS, each BWP in the at least one BWP shares at least one of the following parameters: a bandwidth configuration parameter Csrs; a bandwidth configuration parameter Bsrs; A frequency hopping parameter bhop; a frequency domain starting position parameter nrrc.

18. The method of any one of claims 1 to 17, further comprising: receiving configuration information, the configuration information being used to configure the at least one equivalent BWP and at least one BWP, each of the equivalent BWPs including at least one of the at least one BWP.

19. A communication method, comprising: transmitting a channel or a signal using a currently effective equivalent bandwidth part (BWP), the channel or the signal being mapped to frequency domain resources corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner, the preset frequency domain resource mapping manner being associated with a type of the channel or the signal; each of the equivalent BWPs comprises at least one BWP, and each of the at least one BWP is continuous in the frequency domain.

20. The method of claim 19, further comprising: sending first information, the first information comprising a bitmap, bits in the bitmap being used to indicate whether a resource block group corresponding to the bit is mapped or not, and a bandwidth corresponding to the bitmap being a union of frequency domain resources corresponding to the at least one BWP respectively; the channel or the signal being mapped to the frequency domain resources corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner comprises: in response to the channel being a physical downlink control channel (PDCCH), mapping the PDCCH to the frequency domain resources corresponding to the currently effective equivalent BWP according to the bitmap; or in response to the signal being a sounding reference signal (SRS), mapping the SRS to the frequency domain resources corresponding to the currently effective equivalent BWP according to the bitmap.

21. The method of claim 20, wherein, a frequency domain starting position of a resource block group corresponding to a first bit in the bitmap is the same as a frequency domain starting position of a lowest BWP among the at least one BWP, and / or in response to a frequency domain ending position of a highest BWP among the at least one BWP being located at a middle position of a resource block group, a bit corresponding to the resource block group in the bitmap is zero, the highest BWP being a BWP with a highest frequency domain starting position among the at least one BWP.

22. The method of any one of claims 19-21, wherein, the channel or the signal being mapped to the frequency domain resources corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner comprises: in response to the signal being a channel state information reference signal (CSI-RS), mapping the CSI-RS to frequency domain resources corresponding to at least some of the at least one BWP.

23. The method of any one of claims 19 to 22, further comprising: sending second information, the second information comprising at least one first indication field, the first indication field being used to indicate a mapping relationship between a shared channel and the frequency domain resources corresponding to the currently effective equivalent BWP; the channel or the signal being mapped to the frequency domain resources corresponding to the currently effective equivalent BWP according to the preset frequency domain resource mapping manner comprises: in response to the channel being a shared channel, mapping the shared channel to the frequency domain resources corresponding to the currently effective equivalent BWP according to an indication of the at least one first indication field.

24. The method of claim 23, wherein, the shared channel being mapped to the frequency domain resources corresponding to the currently effective equivalent BWP according to the indication of the at least one first indication field comprises: mapping repeated transmissions of the shared channel or a plurality of the shared channels to the frequency domain resources corresponding to the at least one BWP respectively according to the indication of the at least one first indication field and a preset mapping order; or mapping the shared channel to a first part of resource blocks corresponding to the currently effective equivalent BWP according to an indication of at least one first indication field in a first time unit; and mapping the shared channel to a second part of resource blocks obtained by shifting the first part of resource blocks upward by a preset offset in the frequency domain in a second time unit; or splitting the shared channel into multiple segments in the time domain according to an indication of at least one first indication field, and mapping the multiple segments to the at least one BWP respectively.

25. The method of claim 24, wherein, the second part of resource blocks is cyclically arranged in the frequency domain resource corresponding to the currently effective equivalent BWP; and / or, within the same group of BWPs, the second part of resource blocks is offset relative to the first part of resource blocks, the same group of BWPs including at least part of the at least one BWP; and / or, the number of the multiple segments is not greater than the total number of the at least one BWP; and / or, a single segment is mapped to at least part of the at least one BWP.

26. The method of any one of claims 19 to 25, further comprising: sending configuration information for configuring the at least one equivalent BWP and at least one BWP, each of the equivalent BWPs including at least one of the at least one BWP.

27. A communication apparatus, comprising: a transmission module configured to transmit a channel or a signal using a currently effective equivalent bandwidth part (BWP), the channel or the signal being mapped to frequency domain resources corresponding to the currently effective equivalent BWP according to a preset frequency domain resource mapping manner, the preset frequency domain resource mapping manner being associated with a type of the channel or the signal. wherein each of the equivalent BWPs includes at least one BWP, and a single BWP is continuous in the frequency domain.

28. A computer readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, having stored thereon a computer program, the computer program being executed by a processor to perform the steps of the method of any one of claims 1 to 26.

29. A computer program product, comprising a computer program / instruction, which, when executed by a processor, performs the steps of the method of any one of claims 1 to 26.

30. A communication apparatus, comprising a memory and a processor, the memory having stored thereon a computer program, which is executable by the processor, and the processor, when executing the computer program, performs the steps of the method of any one of claims 1 to 26.

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