CN109802798B - Method, device, user equipment and base station for indicating frequency domain position of bandwidth part - Google Patents
Method, device, user equipment and base station for indicating frequency domain position of bandwidth part Download PDFInfo
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- CN109802798B CN109802798B CN201711148234.0A CN201711148234A CN109802798B CN 109802798 B CN109802798 B CN 109802798B CN 201711148234 A CN201711148234 A CN 201711148234A CN 109802798 B CN109802798 B CN 109802798B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
Abstract
The invention provides a method, a device, user equipment and a base station for indicating frequency domain positions of bandwidth parts. The method comprises the following steps: and acquiring the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block level of the synchronous signal block by receiving the indication of the base station. The invention can realize flexible indication of the frequency domain position of the bandwidth part.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for indicating a frequency domain position of a bandwidth part, a user equipment, and a base station.
Background
In the 5G system, a synchronization signal, a broadcast channel, is transmitted in a synchronization signal block manner, and a beam sweeping function is introduced. Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), and Physical Broadcast Channel (PBCH) are in a Synchronization Signal block (SS-block). Each synchronization signal block can be regarded as a resource of one beam (analog domain) in a beam sweeping (beam sweeping) process. A plurality of sync signal blocks constitute a sync signal burst (SS-burst). The synchronization signal burst can be viewed as a block of resources in a relative set that contains multiple beams. The plurality of synchronization signal bursts form a set of synchronization signal bursts (SS-burst-set). The synchronization signal block is repeatedly transmitted on different beams, which is a beam scanning process, and through the training of beam scanning, the user equipment can sense on which beam the received signal is strongest.
In an idle state, the ue needs to monitor a Physical Downlink Control Channel (PDCCH), blindly detect a common search space thereof, and obtain Downlink Control Information (DCI) therein, so as to receive a common Control message, such as Remaining Minimum System Information (RMSI), a paging message, and the like, in an indicated Physical Downlink Shared Channel (PDSCH). Let us call the PDCCH that the ue needs to monitor in idle state as the common control channel. The common control channel may use the timing of the beams of the synchronization signal block to broadcast information in a beam-sweeping manner as well. The resources of the PDCCH are referred to as a Control Resource Set (CORESET).
The base station carries a Master Information Block (MIB) in the PBCH. The MIB may instruct the ue to know the configuration of the core set in the idle state, so that the ue may blindly detect the PDCCH in the core set in the idle state to obtain the RMSI, and so on. We call this CORESET the first CORESET.
The RMSI may indicate that the user equipment knows the configuration of another type of core set in the idle state, so that the user equipment may blindly check the PDCCH within the core set in the idle state to acquire a paging message, etc. We call this CORESET the second CORESET.
The MIB indicates an offset between a Resource Block grid (RB grid) of the RMSI bandwidth part and a Resource Block grid of the synchronization signal Block. Specifically, the MIB indicates an offset between the lowest subcarrier of the synchronization signal block (i.e., synchronization signal block subcarrier #0) and a certain subcarrier of the RMSI bandwidth part (e.g., subcarrier #0 of a certain RB of the RMSI bandwidth part closest to synchronization signal block subcarrier #0), which is counted in subcarriers, which may be referred to as a subcarrier-level offset. Upon receiving this indication, and upon receiving an RB level offset (which may be implicitly indicated by the RB level frequency domain location of the RMSI CORESET), the user equipment may find a resource block grid of the RMSI bandwidth part (which may also be referred to as the initial active bandwidth part), and may thus monitor the PDCCH in the CORESET and be scheduled RMSI PDSCH to the corresponding frequency domain location for reception.
On the other hand, the RMSI or RRC (Radio Resource Control) signaling dedicated to the ue may indicate a Resource Block grid corresponding to a common PRB (Physical Resource Block) index. In general, a Common physical resource block index (Common PRB indexing) may be used as a global physical resource block index of one carrier to indicate a frequency domain location of a user equipment-specific bandwidth part (a user equipment-specific RRC-indicated bandwidth part). Specifically, the RMSI or user equipment specific RRC may indicate RB #0 and reference location of the common physical resource block index
(Reference Location), where the Reference Location may be a synchronization signal block defined for the cell. Further, the base station may indicate the frequency domain location of the bandwidth part by RRC signaling indicating an offset of a reference point of the bandwidth part from RB #0 in the common physical resource block index. After receiving the indication, the ue may monitor the core and PDCCH in the indicated bandwidth portion, and perform transceiving of data.
The frequency domain position of the bandwidth part needs to have flexibility and forward compatibility to adapt to different frequency bands, deployment scenes and application scenes. 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 the frequency domain position thereof needs to have flexibility. Therefore, how to achieve flexible indication of the frequency domain position of the bandwidth part is a problem to be solved.
Disclosure of Invention
The method, the device, the user equipment and the base station for indicating the frequency domain position of the bandwidth part can realize flexible indication of the frequency domain position of the bandwidth part.
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, and the method comprising:
and acquiring the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block level of the synchronous signal block by receiving the indication of the base station.
Optionally, the obtaining, by receiving an indication from the base station, an offset of a resource block level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block, and an offset of a subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block includes:
the method comprises the steps of obtaining the offset of a resource block level of a resource block grid corresponding to a public physical resource block index and a resource block level of a resource block grid of a synchronous signal block and the offset of a subcarrier level of the resource block grid corresponding to the public physical resource block index and the resource block level of the synchronous signal block by receiving the offset of a first resource block of the public physical resource block index and the first resource block of the synchronous signal block indicated by a base station.
Optionally, the obtaining, by receiving an indication from the base station, an offset of a resource block level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block, and an offset of a subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block includes:
the method comprises the steps of obtaining the resource block level offset of a resource block grid corresponding to a public physical resource block index and a resource block level offset of a resource block grid of a synchronous signal block and the subcarrier level offset of the resource block grid corresponding to the public physical resource block index and the resource block level of the resource block grid of the synchronous signal block by receiving the offset of a first subcarrier of the public physical resource block index and the first subcarrier of the synchronous signal block, which is indicated by a base station.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
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:
the offset of the subcarrier level of the resource block grid corresponding to the index of the public physical resource block and the resource block grid of the synchronous signal block is 0; alternatively, the first and second electrodes may be,
the offset of the subcarrier level of the resource block grid corresponding to the public physical resource block index and the resource block grid of the synchronous signal block is a preset integer number of subcarriers; alternatively, the first and second electrodes may be,
the offset of the resource block grid corresponding to the public physical resource block index and the subcarrier level of the resource block grid of the synchronous signal block is equal to the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block, wherein the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block is indicated in the MIB; alternatively, the first and second electrodes may be,
the offset of the sub-carrier level of 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 offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T sub-carriers, wherein the offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB.
Optionally, the obtaining the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronization signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronization signal block includes: and determining that the offset of the first resource block of the common physical resource block index and the first resource block of the synchronous signal block is 12X + Y subcarriers, wherein the offset of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block is X, and the offset of the resource block grid corresponding to the common physical resource block index and the subcarrier level of the resource block grid of the synchronous signal block is Y.
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:
and indicating the resource block level offset of the resource block grid corresponding to the common physical resource block index and the resource block level offset of the resource block grid of the synchronous signal block and indicating the subcarrier level offset of the resource block grid corresponding to the common physical resource block index and the resource block level offset of the resource block grid of the synchronous signal block to user equipment.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
In a third aspect, the present invention provides an apparatus for indicating a frequency domain location of a bandwidth part, the apparatus being located at a user equipment, the apparatus comprising:
the first obtaining unit is used for obtaining the resource block level offset of the resource block grid corresponding to the common physical resource block index and the resource block level offset of the resource block grid of the synchronous signal block and the subcarrier level offset of the resource block grid corresponding to the common physical resource block index and the resource block level offset of the synchronous signal block by receiving the base station instruction.
Optionally, the first obtaining unit is configured to obtain, by receiving an offset of a first resource block of a common physical resource block index and a first resource block of a synchronization signal block, an offset of a resource block level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block, and an offset of a subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, where the offset is indicated by a base station.
Optionally, the first obtaining unit is configured to obtain, by receiving an offset between a first subcarrier of a common physical resource block index and a first subcarrier of a synchronization signal block, which is indicated by a base station, a resource block level offset between a resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronization signal block, and an offset between the resource block grid corresponding to the common physical resource block index and the subcarrier level of the resource block grid of the synchronization signal block.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
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:
the offset of the subcarrier level of the resource block grid corresponding to the index of the public physical resource block and the resource block grid of the synchronous signal block is 0; alternatively, the first and second electrodes may be,
the offset of the subcarrier level of the resource block grid corresponding to the public physical resource block index and the resource block grid of the synchronous signal block is a preset integer number of subcarriers; alternatively, the first and second electrodes may be,
the offset of the resource block grid corresponding to the public physical resource block index and the subcarrier level of the resource block grid of the synchronous signal block is equal to the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block, wherein the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block is indicated in the MIB; alternatively, the first and second electrodes may be,
the offset of the sub-carrier level of 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 offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T sub-carriers, wherein the offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB.
Optionally, the first obtaining unit is configured to determine that an offset between a first resource block of the common physical resource block index and a first resource block of the synchronization signal block is 12 × X + Y subcarriers, where an offset between a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block is X, and an offset between a resource block grid corresponding to the common physical resource block index and a subcarrier level of a resource block grid of the synchronization signal block is Y.
In a fourth aspect, the present invention provides an apparatus for indicating a frequency domain location of a bandwidth part, the apparatus being located at a base station, the apparatus comprising:
the first indicating unit is used for indicating the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block level of the synchronous signal block to the user equipment.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
In a fifth aspect, the present invention provides a user equipment, where the user equipment includes the above-mentioned device located in the frequency domain of the bandwidth-indicating portion of the user equipment.
In a sixth aspect, the present invention provides a base station comprising the above apparatus located at the frequency domain position of the indicated bandwidth part of the base station.
In a seventh aspect, the present invention provides another method for indicating a frequency domain position of a bandwidth part, where the method is applied to a user equipment, and the method includes:
and acquiring the offset of the resource block level of 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 offset of the subcarrier level of 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.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a common physical resource block index.
Optionally, the obtaining the offset of the resource block level of 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 offset of the subcarrier level of the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index includes: determining that the offset of a first resource block corresponding to a bandwidth part and a first resource block corresponding to a common physical resource block index is 12 × P + Q subcarriers, wherein the offset of a resource block level of 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 offset of a subcarrier level of the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.
In an eighth aspect, the present invention provides another method for indicating a frequency domain position of a bandwidth part, the method being applied to a base station, the method comprising:
and indicating the offset of the resource block level of the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the public physical resource block index and the offset of the subcarrier level of the first resource block corresponding to the bandwidth part of the user equipment and the first resource block corresponding to the public physical resource block index to the user equipment.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a common physical resource block index.
In a ninth aspect, the present invention provides another apparatus for indicating a frequency domain location of a bandwidth part, the apparatus being located at a user equipment, the apparatus comprising:
and the second acquiring unit is used for acquiring the resource block level offset of 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 of 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 instruction.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a common physical resource block index.
Optionally, the second obtaining unit is configured to determine that an offset of a first resource block corresponding to the bandwidth part and a first resource block corresponding to the common physical resource block index is 12 × P + Q subcarriers, where an offset of a resource block level of 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 an offset of a subcarrier level of the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.
In a tenth aspect, the present invention provides another apparatus for indicating a frequency domain location of a bandwidth part, the apparatus being located at a base station, the apparatus comprising:
and the second indicating unit is used for indicating the offset of the resource block level of 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 offset of the subcarrier level of 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 to the user equipment.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a common physical resource block index.
In an eleventh aspect, the present invention provides another user equipment, which includes the above apparatus located at a frequency domain position of the user equipment indicating the bandwidth part.
In a twelfth aspect, the present invention provides another base station, which includes the above apparatus located at the frequency domain position of the indicated bandwidth part of the base station.
The base station indicates the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronization signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the synchronization signal block to the user equipment, or indicates the offset of the resource block level of 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 offset of the subcarrier level of the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index to the user equipment, so that the flexible indication of the frequency domain position of the bandwidth part can be realized.
Drawings
FIG. 1 is a flow chart of a method for indicating frequency domain locations of bandwidth portions according to an embodiment of the invention;
FIG. 2 is a flow chart of a method for indicating frequency domain locations of bandwidth segments according to another embodiment of the present invention;
FIG. 3 is a flow chart of a method of indicating frequency domain locations of a bandwidth portion according to yet another embodiment of the present invention;
FIG. 4 is a flow chart of a method of indicating frequency domain locations of a bandwidth portion according to yet another embodiment of the present invention;
FIG. 5 is a diagram illustrating an apparatus for indicating frequency domain locations of bandwidth portions according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an apparatus for indicating frequency domain positions of bandwidth portions according to another embodiment of the present invention;
FIG. 7 is a schematic diagram of an apparatus for indicating frequency domain locations of bandwidth portions according to yet another embodiment of the present invention;
fig. 8 is a schematic structural diagram of an apparatus for indicating a frequency domain position of a bandwidth part according to yet another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the present invention, the offset of the resource block level of 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 of the resource block #0 corresponding to the common physical resource block index and the resource block #0 of the synchronization signal block; the offset of the subcarrier level of 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 of the subcarrier #0 corresponding to the common physical resource block index and the subcarrier #0 of the synchronization signal block.
An embodiment of the present invention provides a method for indicating a frequency domain position of a bandwidth part, where the method is applied to a user equipment, and as shown in fig. 1, the method includes:
s11, acquiring the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronization signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block level of the synchronization signal block by receiving the base station instruction.
The method for indicating the frequency domain position of the bandwidth part provided by the embodiment of the invention obtains the resource block level offset of the resource block grid corresponding to the common physical resource block index and the resource block level offset of the resource block grid of the synchronous signal block and the subcarrier level offset of the resource block grid corresponding to the common physical resource block index and the resource block level of the synchronous signal block by receiving the indication of the base station, thereby realizing the flexible indication of the frequency domain position of the bandwidth part.
An embodiment of the present invention provides a method for indicating a frequency domain position of a bandwidth part, where the method is applied to a base station, and as shown in fig. 2, the method includes:
s21, indicating the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronous signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronous signal block to the user equipment.
The indication of the resource block level offset of the resource block grid corresponding to the common physical resource block index and the resource block level offset of the resource block grid of the synchronization signal block to the user equipment is sent to the user equipment through RMSI signaling or RRC signaling.
The method for indicating the frequency domain position of the bandwidth part provided by the embodiment of the invention indicates the resource block level offset of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block and the subcarrier level offset of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block to user equipment, thereby realizing flexible indication of the frequency domain position of the bandwidth part.
Specifically, the user equipment may obtain, by receiving an offset of a first resource block of a common physical resource block index and a first resource block of a synchronization signal block, which is indicated by the base station, a resource block level offset of a resource block grid corresponding to the common physical resource block index and a resource block level offset of a resource block grid of the synchronization signal block, and a subcarrier level offset of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block.
Specifically, the ue may obtain, by receiving an offset of a first subcarrier of a common physical resource block index and a first subcarrier of a synchronization signal block indicated by the base station, an offset of a resource block level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block, and an offset of a subcarrier level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block.
The subcarrier interval is a subcarrier interval corresponding to a synchronization signal block or a subcarrier interval corresponding to a common physical resource block index.
Specifically, the offset of the resource block grid corresponding to the common physical resource block index from the subcarrier level of the resource block grid of the synchronization signal block includes:
the offset of the subcarrier level of the resource block grid corresponding to the index of the public physical resource block and the resource block grid of the synchronous signal block is 0; alternatively, the first and second electrodes may be,
the offset of the subcarrier level of the resource block grid corresponding to the public physical resource block index and the resource block grid of the synchronous signal block is a preset integer number of subcarriers; alternatively, the first and second electrodes may be,
the offset of the resource block grid corresponding to the public physical resource block index and the subcarrier level of the resource block grid of the synchronous signal block is equal to the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block, wherein the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block is indicated in the MIB; alternatively, the first and second electrodes may be,
the offset of the sub-carrier level of 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 offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T sub-carriers, wherein the offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB.
Specifically, the offset of the first resource block of the common physical resource block index and the first resource block of the synchronization signal block obtained by the user equipment may be: and determining that the offset of the first resource block of the common physical resource block index and the first resource block of the synchronous signal block is 12X + Y subcarriers, wherein the offset of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block is X, and the offset of the resource block grid corresponding to the common physical resource block index and the subcarrier level of the resource block grid of the synchronous signal block is Y.
Optionally, the offset of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block may be replaced by the offset of the resource block grid corresponding to the common physical resource block index and the resource block grid of the RMSI bandwidth part.
And when the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the RMSI bandwidth part is obtained, the subcarrier interval is the subcarrier interval corresponding to the RMSI bandwidth part.
Another method for indicating a frequency domain position of a bandwidth part is provided in an embodiment of the present invention, where the method is applied to a user equipment, and as shown in fig. 3, the method includes:
s31, acquiring the offset of the resource block level of the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the public physical resource block index and the offset of the subcarrier level of the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the public physical resource block index by receiving the base station indication.
The method for indicating the frequency domain position of the bandwidth part provided by the embodiment of the invention obtains the offset of the resource block level of 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 offset of the subcarrier level of 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 the flexible indication of the frequency domain position of the bandwidth part.
Another method for indicating a frequency domain position of a bandwidth part is provided in an embodiment of the present invention, where the method is applied to a base station, as shown in fig. 4, and the method includes:
s41, indicating the offset of the resource block level of the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the public physical resource block index and indicating the offset of the subcarrier level of the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the public physical resource block index to the user equipment.
The method for indicating the frequency domain position of the bandwidth part, provided by the embodiment of the invention, indicates the resource block level offset of 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 of 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 to the user equipment, so that the flexible indication of the frequency domain position of the bandwidth part can be realized.
The subcarrier spacing is a subcarrier spacing corresponding to the index of the common physical resource block.
Specifically, the obtaining of the offset of the resource block level of 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 offset of the subcarrier level of the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index includes: determining that the offset of a first resource block corresponding to a bandwidth part and a first resource block corresponding to a common physical resource block index is 12 × P + Q subcarriers, wherein the offset of a resource block level of 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 offset of a subcarrier level of the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.
The indication of the offset of the resource block level of 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 offset of the subcarrier level of the first resource block corresponding to the user equipment bandwidth part and the first resource block corresponding to the common physical resource block index to the user equipment is sent to the user equipment through RRC signaling.
An embodiment of the present invention further provides an apparatus for indicating a frequency domain position of a bandwidth part, where the apparatus is located in a user equipment, and as shown in fig. 5, the apparatus includes:
the first obtaining unit 11 is configured to obtain, by receiving a base station instruction, an offset of a resource block level of a resource block grid corresponding to a common physical resource block index and a resource block level of a resource block grid of a synchronization signal block, and an offset of a subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronization signal block.
The device for indicating the frequency domain position of the bandwidth part, provided by the embodiment of the invention, can obtain the resource block level offset of the resource block grid corresponding to the common physical resource block index and the resource block level offset of the resource block grid of the synchronous signal block and the subcarrier level offset of the resource block grid corresponding to the common physical resource block index and the resource block level offset of the resource block grid of the synchronous signal block by receiving the indication of the base station, thereby realizing the flexible indication of the frequency domain position of the bandwidth part.
Optionally, the first obtaining unit 11 is configured to obtain, by receiving an offset of a first resource block of a common physical resource block index and a first resource block of a synchronization signal block, an offset of a resource block level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block, and an offset of a subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block, where the offset is indicated by a base station.
Optionally, the first obtaining unit 11 is configured to obtain, by receiving an offset of a first subcarrier of a common physical resource block index and a first subcarrier of a synchronization signal block, which is indicated by a base station, a resource block level offset of a resource block grid corresponding to the common physical resource block index and a resource block level offset of a resource block grid of the synchronization signal block, and a subcarrier level offset of a resource block grid corresponding to the common physical resource block index and a resource block level of the resource block grid of the synchronization signal block.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
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:
the offset of the subcarrier level of the resource block grid corresponding to the index of the public physical resource block and the resource block grid of the synchronous signal block is 0; alternatively, the first and second electrodes may be,
the offset of the subcarrier level of the resource block grid corresponding to the public physical resource block index and the resource block grid of the synchronous signal block is a preset integer number of subcarriers; alternatively, the first and second electrodes may be,
the offset of the resource block grid corresponding to the public physical resource block index and the subcarrier level of the resource block grid of the synchronous signal block is equal to the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block, wherein the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block is indicated in the MIB; alternatively, the first and second electrodes may be,
the offset of the sub-carrier level of 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 offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T sub-carriers, wherein the offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB.
Optionally, the first obtaining unit 11 is configured to determine that an offset of a first resource block of the common physical resource block index and a first resource block of the synchronization signal block is 12 × X + Y subcarriers, where an offset of a resource block level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block is X, and an offset of a subcarrier level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block is Y.
The apparatus of this embodiment may be configured to execute the technical solution of the method embodiment located in the user equipment and corresponding to fig. 1, and the implementation principle and the technical effect are similar, which are not described herein again.
In a fourth aspect, the present invention provides an apparatus for indicating frequency domain positions of bandwidth parts, the apparatus being located at a base station, as shown in fig. 6, the apparatus comprising:
a first indicating unit 21, configured to indicate, to the user equipment, an offset of a resource block level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block, and an offset of a subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block.
The device for indicating the frequency domain position of the bandwidth part, provided by the embodiment of the invention, indicates the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block to user equipment, so that the flexible indication of the frequency domain position of the bandwidth part can be realized.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
The apparatus of this embodiment may be configured to execute the technical solution of the method embodiment located in the base station corresponding to fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.
In a ninth aspect, the present invention provides another apparatus for indicating frequency domain positions of bandwidth parts, the apparatus being located at a user equipment, as shown in fig. 7, and the apparatus comprising:
a second obtaining unit 31, configured to obtain, by receiving a base station instruction, a resource block level offset of a first resource block corresponding to the user equipment bandwidth portion and a first resource block corresponding to the common physical resource block index, and a subcarrier level offset of the first resource block corresponding to the user equipment bandwidth portion and the first resource block corresponding to the common physical resource block index.
The device for indicating the frequency domain position of the bandwidth part, provided by the embodiment of the invention, obtains the offset of the resource block level of 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 offset of the subcarrier level of 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, so that the flexible indication of the frequency domain position of the bandwidth part can be realized.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a common physical resource block index.
Optionally, the second obtaining unit 31 is configured to determine that an offset of a first resource block corresponding to the bandwidth part and a first resource block corresponding to the common physical resource block index is 12 × P + Q subcarriers, where an offset of a resource block level of 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 an offset of a subcarrier level of the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is Q.
The apparatus of this embodiment may be configured to execute the technical solution of the method embodiment located in the user equipment and corresponding to fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.
In a tenth aspect, the present invention provides another apparatus for indicating frequency domain positions of bandwidth parts, the apparatus being located at a base station, as shown in fig. 8, the apparatus comprising:
a second indicating unit 41, configured to 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 the common physical resource block index, and a subcarrier level offset of the first resource block corresponding to the user equipment bandwidth portion and the first resource block corresponding to the common physical resource block index.
The device for indicating the frequency domain position of the bandwidth part, provided by the embodiment of the invention, indicates the resource block level offset of 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 of 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 to the user equipment, so that the flexible indication of the frequency domain position of the bandwidth part can be realized.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to a common physical resource block index.
The apparatus of this embodiment may be configured to execute the technical solution of the method embodiment located in the base station corresponding to fig. 4, and the implementation principle and the technical effect are similar, which are not described herein again.
An embodiment of the present invention further provides a user equipment, where the base station includes the device located at the frequency domain position of the indicated bandwidth part of the user equipment corresponding to fig. 5.
An embodiment of the present invention further provides a base station, where the base station includes the device located at the frequency domain position of the indicated bandwidth part of the base station corresponding to fig. 6.
An embodiment of the present invention further provides another user equipment, where the base station includes the device located in the frequency domain position of the indicated bandwidth part of the user equipment corresponding to fig. 7.
An embodiment of the present invention further provides another base station, where the base station includes the device located at the frequency domain position of the indicated bandwidth part of the base station corresponding to fig. 8.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (14)
1. A method for indicating a frequency domain location of a bandwidth part, the method being applied to a user equipment, the method comprising:
the method comprises the steps of obtaining the offset of a resource block level of a resource block grid corresponding to a public physical resource block index and a resource block level of a resource block grid of a synchronous signal block and the offset of a subcarrier level of the resource block grid corresponding to the public physical resource block index and the resource block level of the resource block grid of the synchronous signal block by receiving the offset of a first resource block of the public physical resource block index and the first resource block of the synchronous signal block and/or the offset of a first subcarrier of the public physical resource block index and the first subcarrier of the synchronous signal block, which are indicated by a base station.
2. The method of claim 1, wherein the subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
3. The method of claim 1, wherein the common physical resource block index corresponds to a resource block grid offset from a resource block grid of a synchronization signal block, comprising:
the offset of the subcarrier level of the resource block grid corresponding to the index of the public physical resource block and the resource block grid of the synchronous signal block is 0; alternatively, the first and second electrodes may be,
the offset of the subcarrier level of the resource block grid corresponding to the public physical resource block index and the resource block grid of the synchronous signal block is a preset integer number of subcarriers; alternatively, the first and second electrodes may be,
the offset of the resource block grid corresponding to the public physical resource block index and the subcarrier level of the resource block grid of the synchronous signal block is equal to the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block, wherein the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block is indicated in the MIB; alternatively, the first and second electrodes may be,
the offset of the sub-carrier level of 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 offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T sub-carriers, wherein the offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB.
4. The method according to any of claims 1 to 3, wherein the obtaining the resource block level offset of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block and the subcarrier level offset of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block comprises: and determining that the offset of the first resource block of the common physical resource block index and the first resource block of the synchronous signal block is 12X + Y subcarriers, wherein the offset of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block is X, and the offset of the resource block grid corresponding to the common physical resource block index and the subcarrier level of the resource block grid of the synchronous signal block is Y.
5. A method of indicating a frequency domain location of a bandwidth part, the method being applied to a base station, the method comprising:
and indicating the offset of the first resource block of the common physical resource block index and the first resource block of the synchronous signal block and/or the offset of the first subcarrier of the common physical resource block index and the first subcarrier of the synchronous signal block to user equipment, wherein the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronous signal block are/is indicated to the user equipment.
6. The method of claim 5, wherein the subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
7. An apparatus for indicating a frequency domain location of a bandwidth portion, the apparatus located at a user equipment, the apparatus comprising:
the first obtaining unit is configured to obtain, by receiving an offset of a first resource block of a common physical resource block index and a first resource block of a synchronization signal block and/or an offset of a first subcarrier of the common physical resource block index and a first subcarrier of the synchronization signal block, which is indicated by a base station, an offset of a resource block level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of the synchronization signal block, and an offset of a subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronization signal block.
8. The apparatus of claim 7, wherein the subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
9. The apparatus of claim 7, wherein an offset of a resource block grid corresponding to the common physical resource block index from a resource block grid of a synchronization signal block comprises:
the offset of the subcarrier level of the resource block grid corresponding to the index of the public physical resource block and the resource block grid of the synchronous signal block is 0; alternatively, the first and second electrodes may be,
the offset of the subcarrier level of the resource block grid corresponding to the public physical resource block index and the resource block grid of the synchronous signal block is a preset integer number of subcarriers; alternatively, the first and second electrodes may be,
the offset of the resource block grid corresponding to the public physical resource block index and the subcarrier level of the resource block grid of the synchronous signal block is equal to the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block, wherein the offset of the resource block grid of the RMSI bandwidth part and the subcarrier level of the resource block grid of the synchronous signal block is indicated in the MIB; alternatively, the first and second electrodes may be,
the offset of the sub-carrier level of 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 offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T sub-carriers, wherein the offset of the sub-carrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block is indicated in the MIB.
10. The apparatus according to any one of claims 7 to 9, wherein the first obtaining unit is configured to determine that an offset of a first resource block of the common physical resource block index and a first resource block of a synchronization signal block is 12X + Y subcarriers, where an offset of a resource block level of a resource block grid corresponding to the common physical resource block index and a resource block level of a resource block grid of a synchronization signal block is X, and an offset of a subcarrier level of a resource block grid corresponding to the common physical resource block index and a resource block grid of a synchronization signal block is Y.
11. An apparatus for indicating a frequency domain location of a bandwidth portion, the apparatus located at a base station, the apparatus comprising:
the first indicating unit is used for indicating the offset of the first resource block of the common physical resource block index and the first resource block of the synchronous signal block and/or the offset of the first subcarrier of the common physical resource block index and the first subcarrier of the synchronous signal block to the user equipment, and indicating the offset of the resource block level of the resource block grid corresponding to the common physical resource block index and the resource block level of the resource block grid of the synchronous signal block and the offset of the subcarrier level of the resource block grid corresponding to the common physical resource block index and the resource block grid of the synchronous signal block.
12. The apparatus of claim 11, wherein a subcarrier spacing is a subcarrier spacing corresponding to a synchronization signal block or a subcarrier spacing corresponding to a common physical resource block index.
13. A user equipment, characterized in that the user equipment comprises the means for indicating the frequency domain location of a bandwidth part according to any of claims 7 to 10.
14. A base station, characterized in that the base station comprises means for indicating the frequency domain position of a bandwidth part according to claim 11 or 12.
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