Method, device, user equipment and base station for indicating frequency domain position of bandwidth part

Abstract

The present invention provides a method, device, user equipment and base station for indicating the frequency domain position of a bandwidth part. The method comprises: obtaining the resource block level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index and the subcarrier level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index by receiving the base station indication. The present invention can realize the flexible indication of the frequency domain position of the bandwidth part.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular to a method, device, user equipment and base station for indicating the frequency domain position of a bandwidth part. Background Art

[0002] In the 5G system, synchronization signals and broadcast channels are sent in the form of synchronization signal blocks, and the function of beam scanning is introduced. The primary synchronization signal (PSS), secondary synchronization signal (SSS) and physical broadcast channel (PBCH) are in the synchronization signal block (SS-block). Each synchronization signal block can be regarded as a resource of a beam (analog domain) in the beam sweeping process. Multiple synchronization signal blocks constitute a synchronization signal burst (SS-burst). The synchronization signal burst can be regarded as a relatively concentrated resource containing multiple beams. Multiple synchronization signal bursts constitute a synchronization signal burst set (SS-burst-set). The synchronization signal block is repeatedly sent on different beams, which is a beam scanning process. Through the training of beam scanning, the user equipment can sense on which beam the received signal is the strongest.

[0003] In the idle state, the user equipment needs to monitor the physical downlink control channel (PDCCH), blindly detect its common search space, and obtain the downlink control information (DCI) therein, so as to receive the common control message in the indicated physical downlink shared channel (PDSCH), such as the remaining minimum system information (RMSI), paging message, etc. We call the PDCCH that the user equipment needs to monitor in the idle state the common control channel. The common control channel can use the timing of the beam of the synchronization signal block, and thus also broadcast information in a scanning beam manner. The resources of the PDCCH are called the control resource set (CORESET).

[0004] The base station carries the Master Information Block (MIB) in the PBCH. The MIB can indicate to the user equipment the configuration of a CORESET in the idle state, so that the user equipment can blindly detect the PDCCH in the CORESET in the idle state to obtain the RMSI, etc. We call this CORESET the first CORESET.

[0005] RMSI can indicate to the user equipment that it knows the configuration of another type of CORESET in the idle state, so that the user equipment can blindly detect the PDCCH in the CORESET in the idle state to obtain paging messages, etc. We call this CORESET the second CORESET.

[0006] The MIB indicates the offset between the resource block grid (RB grid) of the RMSI bandwidth part and the resource block grid of the synchronization signal block. Specifically, the MIB indicates the offset between the lowest subcarrier of the synchronization signal block (i.e., synchronization signal block subcarrier #0) and a subcarrier of the RMSI bandwidth part (such as subcarrier #0 of a certain RB of the RMSI bandwidth part closest to synchronization signal block subcarrier #0). This offset is counted in subcarriers and can be called a subcarrier-level offset. After the user equipment receives this indication and the RB-level offset (this offset can be implicitly indicated by the RB-level frequency domain position of the RMSICORESET), the user equipment can find the resource block grid of the RMSI bandwidth part (also called the initial activation bandwidth part), so that it can monitor the PDCCH in the CORESET and be scheduled to the corresponding frequency domain position to receive the RMSI PDSCH.

[0007] On the other hand, RMSI or user equipment-specific RRC (Radio Resource Control) signaling can indicate the resource block grid corresponding to the common PRB (Physical Resource Block) index. Generally speaking, the common physical resource block index (Common PRB indexing) can be used as a global physical resource block index of a carrier to indicate the frequency domain position of the bandwidth part dedicated to the user equipment (the bandwidth part indicated by the RRC dedicated to the user equipment). Specifically, RMSI or user equipment-specific RRC can indicate the offset between RB#0 of the common physical resource block index and the reference location (Reference Location), where the reference location can be a synchronization signal block defined by the cell. Further, the base station can indicate the frequency domain position of the bandwidth part by indicating the reference point of the bandwidth part and the offset of RB#0 in the common physical resource block index through RRC signaling. After receiving this indication, the user equipment will be able to monitor CORESET and PDCCH on the indicated bandwidth part and send and receive data.

[0008] The frequency domain position of the bandwidth part needs to be flexible and forward compatible to adapt to different frequency bands, deployment scenarios, and application scenarios. For example, the guard band between a certain bandwidth part and another adjacent bandwidth part varies according to different frequency bands, deployment scenarios, and application scenarios, and its frequency domain position needs to be flexible. Therefore, how to achieve flexible indication of the frequency domain position of the bandwidth part is a problem that needs to be solved. Summary of the invention

[0009] The method, device, user equipment and base station for indicating the frequency domain position of a bandwidth part provided by the present invention can realize flexible indication of the frequency domain position of the bandwidth part.

[0010] In a first aspect, the present invention provides a method for indicating a frequency domain position of a bandwidth part, the method being applied to a user equipment, the method comprising:

[0011] By receiving the base station indication, the resource block level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index and the subcarrier level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index are obtained.

[0012] Optionally, the subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

[0013] Optionally, obtaining the resource block-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index and the subcarrier-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index includes: determining that the offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is 12*P+Q subcarriers, wherein the resource block-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is P, and the subcarrier-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.

[0014] In a second aspect, the present invention provides a method for indicating a frequency domain position of a bandwidth part, the method being applied to a base station, the method comprising:

[0015] Indicate to the user equipment a resource block level offset of a first resource block corresponding to the user equipment bandwidth portion and a first resource block corresponding to a common physical resource block index and a subcarrier level offset of a first resource block corresponding to the user equipment bandwidth portion and a first resource block corresponding to a common physical resource block index.

[0016] Optionally, the subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

[0017] In a third aspect, the present invention provides a device for indicating a frequency domain position of a bandwidth part, the device being located in a user equipment, and comprising:

[0018] The second acquisition unit is used to obtain the resource block-level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index, and the subcarrier-level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index by receiving the indication of the base station.

[0019] Optionally, the subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

[0020] Optionally, the second acquisition unit is used to determine that the offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is 12*P+Q subcarriers, wherein the resource block level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is P, and the subcarrier level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.

[0021] In a fourth aspect, the present invention provides a device for indicating a frequency domain position of a bandwidth part, the device being located in a base station, and comprising:

[0022] The second indication unit is used to indicate to the user equipment the resource block level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index, as well as the subcarrier level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index.

[0023] Optionally, the subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

[0024] In a fifth aspect, the present invention provides a user equipment, wherein the user equipment comprises the above-mentioned device for indicating the frequency domain position of a bandwidth part located in the user equipment.

[0025] In a sixth aspect, the present invention provides a base station, comprising the above-mentioned device located at the frequency domain position of the indicating bandwidth part of the base station.

[0026] The embodiments of the present invention provide a method, an apparatus, a user equipment and a base station for indicating the frequency domain position of a bandwidth part. The base station indicates to the user equipment the resource block-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, or indicates to the user equipment the resource block-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index, as well as the subcarrier-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index, thereby enabling flexible indication of the frequency domain position of the bandwidth part. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A flowchart of a method for indicating a frequency domain position of a bandwidth portion according to an embodiment of the present invention;

[0028] Figure 2 A flowchart of a method for indicating a frequency domain position of a bandwidth portion according to another embodiment of the present invention;

[0029] Figure 3 A flowchart of a method for indicating a frequency domain position of a bandwidth portion according to another embodiment of the present invention;

[0030] Figure 4 A flowchart of a method for indicating a frequency domain position of a bandwidth portion according to another embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of a device for indicating a frequency domain position of a bandwidth part according to an embodiment of the present invention;

[0032] Figure 6A schematic diagram of the structure of a device for indicating a frequency domain position of a bandwidth part according to another embodiment of the present invention;

[0033] Figure 7 A schematic diagram of the structure of a device for indicating a frequency domain position of a bandwidth part according to another embodiment of the present invention;

[0034] Figure 8 The present invention is a schematic structural diagram of a device for indicating a frequency domain position of a bandwidth part according to another embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In an embodiment of the present invention, the resource block-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block can also be expressed as the offset between the resource block #0 corresponding to the common physical resource block index and the resource block #0 of the synchronization signal block; the subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block can also be expressed as the offset between the subcarrier #0 corresponding to the common physical resource block index and the subcarrier #0 of the synchronization signal block.

[0037] An embodiment of the present invention provides a method for indicating a frequency domain position of a bandwidth part, the method being applied to a user equipment, such as Figure 1 As shown, the method includes:

[0038] S11. By receiving the indication from the base station, obtain the resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block.

[0039] The method for indicating the frequency domain position of a bandwidth part provided in an embodiment of the present invention obtains the resource block-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block by receiving an indication from a base station, thereby enabling flexible indication of the frequency domain position of the bandwidth part.

[0040] An embodiment of the present invention provides a method for indicating the frequency domain position of a bandwidth part, and the method is applied to a base station, such as Figure 2As shown, the method includes:

[0041] S21. Indicate to the user equipment the resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block.

[0042] The resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, which is indicated to the user equipment, is sent to the user equipment through RMSI signaling or RRC signaling.

[0043] The method for indicating the frequency domain position of the bandwidth part provided by an embodiment of the present invention indicates to the user equipment the resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, thereby enabling flexible indication of the frequency domain position of the bandwidth part.

[0044] Specifically, the user equipment can obtain the resource block-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block by receiving the offset between the first resource block of the common physical resource block index and the first resource block of the synchronization signal block indicated by the base station.

[0045] Specifically, the user equipment can obtain the resource block-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block by receiving the offset between the first subcarrier of the common physical resource block index and the first subcarrier of the synchronization signal block indicated by the base station.

[0046] The subcarrier spacing is the subcarrier spacing corresponding to the synchronization signal block or the subcarrier spacing corresponding to the common physical resource block index.

[0047] Specifically, the subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block includes:

[0048] The subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is 0; or,

[0049] The subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is a predetermined integer number of subcarriers; or,

[0050] The subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is equal to the subcarrier-level offset between the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block, where the subcarrier-level offset between the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB; or,

[0051] The subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is equal to the subcarrier-level offset between the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T subcarriers, where the subcarrier-level offset between the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB.

[0052] Specifically, the user equipment obtains the offset between the first resource block of the common physical resource block index and the first resource block of the synchronization signal block by: determining that the offset between the first resource block of the common physical resource block index and the first resource block of the synchronization signal block is 12*X+Y subcarriers, wherein the resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is X, and the subcarrier level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is Y.

[0053] Optionally, the offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block can be replaced by the offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the RMSI bandwidth part.

[0054] When obtaining the subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the RMSI bandwidth part, the subcarrier spacing is the subcarrier spacing corresponding to the RMSI bandwidth part.

[0055] The embodiment of the present invention provides another method for indicating the frequency domain position of a bandwidth part, and the method is applied to a user equipment, such as Figure 3 As shown, the method includes:

[0056] S31. Obtain, by receiving an indication from a base station, a resource block-level offset between the first resource block corresponding to the bandwidth portion of the user equipment and the first resource block corresponding to the common physical resource block index, and a subcarrier-level offset between the first resource block corresponding to the bandwidth portion of the user equipment and the first resource block corresponding to the common physical resource block index.

[0057] The method for indicating the frequency domain position of a bandwidth part provided in an embodiment of the present invention obtains the resource block-level offset between the first resource block corresponding to the bandwidth part of a user equipment and the first resource block corresponding to a common physical resource block index, as well as the subcarrier-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index, by receiving an indication from a base station, thereby enabling flexible indication of the frequency domain position of the bandwidth part.

[0058] The embodiment of the present invention provides another method for indicating the frequency domain position of a bandwidth part, and the method is applied to a base station, such as Figure 4 As shown, the method includes:

[0059] S41. Indicate to the user equipment the resource block level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index, and the subcarrier level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index.

[0060] The method for indicating the frequency domain position of a bandwidth part provided in an embodiment of the present invention indicates to a user equipment the resource block-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index, as well as the subcarrier-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index, thereby enabling flexible indication of the frequency domain position of the bandwidth part.

[0061] The subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

[0062] Specifically, obtaining the resource block-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index and the subcarrier-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index includes: determining that the offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is 12*P+Q subcarriers, wherein the resource block-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is P, and the subcarrier-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.

[0063] The above-mentioned resource block-level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index, as well as the subcarrier-level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index, are sent to the user equipment through RRC signaling.

[0064] The embodiment of the present invention also provides a device for indicating the frequency domain position of a bandwidth part, wherein the device is located in a user equipment, such as Figure 5 As shown, the device comprises:

[0065] The first acquisition unit 11 is used to obtain the resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block by receiving the base station indication.

[0066] The device for indicating the frequency domain position of the bandwidth part provided by the embodiment of the present invention obtains the resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block by receiving the indication of the base station, thereby realizing flexible indication of the frequency domain position of the bandwidth part.

[0067] Optionally, the first acquisition unit 11 is used to obtain the resource block-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block by receiving the offset between the first resource block of the common physical resource block index and the first resource block of the synchronization signal block indicated by the base station.

[0068] Optionally, the first acquisition unit 11 is used to obtain the resource block-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block by receiving the offset between the first subcarrier of the common physical resource block index and the first subcarrier of the synchronization signal block indicated by the base station.

[0069] Optionally, the subcarrier spacing is the subcarrier spacing corresponding to the synchronization signal block or the subcarrier spacing corresponding to the common physical resource block index.

[0070] Optionally, the offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block includes:

[0071] The subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is 0; or,

[0072] The subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is a predetermined integer number of subcarriers; or,

[0073] The subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is equal to the subcarrier-level offset between the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block, where the subcarrier-level offset between the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB; or,

[0074] The subcarrier-level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is equal to the subcarrier-level offset between the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T subcarriers, where the subcarrier-level offset between the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB.

[0075] Optionally, the first acquisition unit 11 is used to determine that the offset between the first resource block of the common physical resource block index and the first resource block of the synchronization signal block is 12*X+Y subcarriers, wherein the resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is X, and the subcarrier level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block is Y.

[0076] The device of this embodiment can be used to perform the above Figure 1 The corresponding technical solution of the method embodiment located in the user equipment has similar implementation principles and technical effects, which will not be repeated here.

[0077] In a fourth aspect, the present invention provides a device for indicating a frequency domain position of a bandwidth portion, the device being located at a base station, such as Figure 6 As shown, the device comprises:

[0078] The first indication unit 21 is used to indicate to the user equipment the resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block.

[0079] The device for indicating the frequency domain position of the bandwidth part provided by the embodiment of the present invention indicates to the user equipment the resource block level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, as well as the subcarrier level offset between the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, thereby enabling flexible indication of the frequency domain position of the bandwidth part.

[0080] Optionally, the subcarrier spacing is the subcarrier spacing corresponding to the synchronization signal block or the subcarrier spacing corresponding to the common physical resource block index.

[0081] The device of this embodiment can be used to perform the above Figure 2 The corresponding technical solution of the method embodiment located in the base station has similar implementation principles and technical effects, which will not be repeated here.

[0082] In a ninth aspect, the present invention provides another device for indicating the frequency domain position of a bandwidth part, wherein the device is located in a user equipment, such as Figure 7 As shown, the device comprises:

[0083] The second acquisition unit 31 is used to obtain the resource block-level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index, and the subcarrier-level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index by receiving the base station indication.

[0084] The device for indicating the frequency domain position of the bandwidth part provided by the embodiment of the present invention obtains the resource block-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index, as well as the subcarrier-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index, by receiving the indication of the base station, thereby realizing flexible indication of the frequency domain position of the bandwidth part.

[0085] Optionally, the subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

[0086] Optionally, the second acquisition unit 31 is used to determine that the offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is 12*P+Q subcarriers, wherein the resource block level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is P, and the subcarrier level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.

[0087] The device of this embodiment can be used to perform the above Figure 3 The corresponding technical solution of the method embodiment located in the user equipment has similar implementation principles and technical effects, which will not be repeated here.

[0088] In a tenth aspect, the present invention provides another device for indicating the frequency domain position of a bandwidth portion, wherein the device is located at a base station, such as Figure 8 As shown, the device comprises:

[0089] The second indication unit 41 is used to indicate to the user equipment the resource block level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index, as well as the subcarrier level offset between the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index.

[0090] The device for indicating the frequency domain position of the bandwidth part provided by the embodiment of the present invention indicates to the user equipment the resource block-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index, as well as the subcarrier-level offset between the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the common physical resource block index, thereby realizing flexible indication of the frequency domain position of the bandwidth part.

[0091] Optionally, the subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

[0092] The device of this embodiment can be used to perform the above Figure 4 The corresponding technical solution of the method embodiment located in the base station has similar implementation principles and technical effects, which will not be repeated here.

[0093] The embodiment of the present invention further provides a user equipment, wherein the base station comprises the above-mentioned Figure 5 A corresponding device is located at the user equipment and indicates the frequency domain position of the bandwidth part.

[0094] The embodiment of the present invention further provides a base station, the base station comprising the above Figure 6 A corresponding device is located at the base station and indicates the frequency domain position of the bandwidth part.

[0095] The embodiment of the present invention also provides another user equipment, the base station includes the above Figure 7 A corresponding device is located at the user equipment and indicates the frequency domain position of the bandwidth part.

[0096] The embodiment of the present invention also provides another base station, the base station comprising the above Figure 8 A corresponding device is located at the base station and indicates the frequency domain position of the bandwidth part.

[0097] A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0098] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for indicating a frequency domain position of a bandwidth portion, the method being applied to a user equipment, characterized in that: The method comprises: Obtaining, by receiving an indication from a base station, a resource block-level offset between a first resource block corresponding to the bandwidth portion and a first resource block corresponding to a common physical resource block index, and a subcarrier-level offset between a first resource block corresponding to the bandwidth portion and a first resource block corresponding to a common physical resource block index; The method of obtaining the resource block-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index, and the subcarrier-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index includes: determining that the offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is 12*P+Q subcarriers, wherein the resource block-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is P, and the subcarrier-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.

2. The method according to claim 1, characterized in that The subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

3. A method for indicating the frequency domain position of a bandwidth portion, the method being applied to a base station, characterized in that: The method comprises: Indicate to the user equipment the resource block level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index, and the subcarrier level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index; wherein the offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is 12*P+Q subcarriers, wherein the resource block level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is P, and the subcarrier level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.

4. The method according to claim 3, characterized in that The subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

5. A device for indicating a frequency domain position of a bandwidth portion, the device being located in a user equipment, characterized in that: The device comprises: A second acquisition unit is used to acquire, by receiving an indication from a base station, a resource block-level offset between a first resource block corresponding to the bandwidth portion and a first resource block corresponding to a common physical resource block index, and a subcarrier-level offset between a first resource block corresponding to the bandwidth portion and a first resource block corresponding to the common physical resource block index; The second acquisition unit is also used to determine that the offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is 12*P+Q subcarriers, wherein the resource block-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is P, and the subcarrier-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.

6. The device according to claim 5, characterized in that The subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

7. A device for indicating the frequency domain position of a bandwidth portion, the device being located at a base station, characterized in that: The device comprises: The second indication unit is used to indicate to the user equipment the resource block-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index, and the subcarrier-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index; wherein, the offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is 12*P+Q subcarriers, wherein the resource block-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is P, and the subcarrier-level offset between the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.

8. The device according to claim 7, characterized in that The subcarrier spacing is the subcarrier spacing corresponding to the common physical resource block index.

9. A user equipment, characterized in that: The user equipment comprises a device for indicating a frequency domain position of a bandwidth part according to any one of claims 5 to 6.

10. A base station, characterized in that: The base station comprises the device for indicating the frequency domain position of the bandwidth part according to claim 7 or 8.

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