CN114465703B - 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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- CN114465703B CN114465703B CN202210148459.0A CN202210148459A CN114465703B CN 114465703 B CN114465703 B CN 114465703B CN 202210148459 A CN202210148459 A CN 202210148459A CN 114465703 B CN114465703 B CN 114465703B
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- 230000001360 synchronised effect Effects 0.000 description 23
- 230000011664 signaling Effects 0.000 description 5
- 238000010408 sweeping Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004590 computer program Methods 0.000 description 1
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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—Signalling for the administration of the divided path, e.g. signalling of configuration information
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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
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Abstract
The invention provides a method, a device, user equipment and a base station for indicating the frequency domain position of a bandwidth part. The method comprises the steps of obtaining the offset of the resource block level of a first resource block corresponding to a bandwidth part of user equipment and a first resource block corresponding to a 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 through receiving a base station indication. 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 communications technologies, and in particular, to a method, an apparatus, a user equipment, and a base station for indicating a frequency domain position of a bandwidth portion.
Background
In the 5G system, the synchronization signal and the broadcast channel are transmitted in a synchronization signal block manner, and a beam sweeping function is introduced. The primary synchronization signal (Primary Synchronization Signal, PSS), the secondary synchronization signal (Secondary Synchronization Signal, SSS) and the physical broadcast channel (Physical Broadcast Channel, PBCH) are in a synchronization signal block (SS-block). Each synchronization signal block may be considered a resource of one beam (analog domain) during the sweeping beam (beam sweeping). A plurality of synchronization signal blocks constitute one synchronization signal burst (SS-burst). A synchronization signal burst may be considered a relatively concentrated block of resources comprising a plurality of beams. A plurality of synchronization signal bursts form a synchronization signal burst set (SS-burst-set). The synchronization signal block is repeatedly sent on different beams, which is a beam sweeping process, and through the training of beam sweeping, the user equipment can sense which beam receives the strongest signal.
In idle state, the ue needs to monitor the physical downlink control channel (Physical Downlink Control Channel, PDCCH), blindly check its common search space, and obtain downlink control information (Downlink Control Information, DCI) therein, so as to receive common control messages, such as the remaining minimum system information (REMAINING MINIMUM SYSTEM INFORMATION, RMSI), paging messages, etc., in the indicated physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH). We call PDCCH that the user equipment needs to monitor in idle state common control channel. The common control channel may use the timing of the beams of the synchronization signal block to broadcast information also in a scanned beam manner. The resources of the PDCCH are referred to as a control resource set (Control Resource Set, CORESET).
The base station carries a master information block (Master Information Block, MIB) in the PBCH. The MIB may indicate that the user equipment knows the configuration of one class CORESET in the idle state, so that the user equipment may blindly check the PDCCH in CORESET in the idle state to obtain RMSI, etc. We call this CORESET first CORESET.
RMSI may indicate that the user equipment knows the configuration of another class CORESET in the idle state, so that the user equipment may blindly check the PDCCH in CORESET in the idle state to obtain paging messages, etc. We call this CORESET second CORESET.
The MIB indicates an offset between a resource block grid (Resource Block grid, RB grid) of the RMSI bandwidth portion 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 portion (e.g., subcarrier #0 of a certain RB of the RMSI bandwidth portion nearest to the synchronization signal block subcarrier # 0), which may be referred to as a subcarrier-level offset in subcarrier count. After receiving this indication, and after receiving an offset at the RB level (which may be implicitly indicated by the frequency domain position at the RB level of RMSI CORESET), the user equipment may find a resource block grid for the RMSI bandwidth portion (which may also be referred to as the initial active bandwidth portion) so that the PDCCH in CORESET may be listened to and scheduled to the corresponding frequency domain position for reception RMSI PDSCH.
On the other hand RMSI or user equipment specific RRC (Radio Resource Control ) signaling may indicate the resource block grid to which the common PRB (Physical Resource Block ) index corresponds. In general, the common physical resource block index (Common PRB indexing) may be used as a global physical resource block index of one carrier to indicate the frequency domain location of a user equipment specific bandwidth portion (a user equipment specific RRC indicated bandwidth portion). In particular RMSI or user equipment specific RRC may indicate an offset between rb#0 of the common physical resource block index and a reference location (REFERENCE LOCATION), which may be a cell-defined synchronization signal block. Further, the base station may indicate the frequency domain location of the bandwidth part by indicating an offset of the reference point of the bandwidth part from rb#0 in the common physical resource block index through RRC signaling. After receiving the indication, the ue may monitor CORESET and PDCCH on the indicated bandwidth portion, and transmit and receive data.
The frequency domain position of the bandwidth part needs to have flexibility and forward compatibility so as 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 is changed according to different frequency bands, deployment scenes and application scenes, and the frequency domain position needs to have flexibility. Thus, it is a problem to be solved how to achieve a flexible indication of the frequency domain location of the bandwidth part.
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 of indicating a frequency domain position of a bandwidth part, the method being applied to a user equipment, the method comprising:
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 base station indication.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to the common physical resource block index.
Optionally, the obtaining 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 common physical resource block index of the user equipment includes determining that the offset of 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 offset of the 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 the 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 second aspect, the present invention provides a method of indicating a frequency domain position of a bandwidth part, the method being applied to a base station, the method comprising:
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 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 common physical resource block index to the user equipment.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to the common physical resource block index.
In a third aspect, the present invention provides an apparatus for indicating a frequency domain position of a bandwidth part, the apparatus being located in a user equipment, the apparatus comprising:
And the second acquisition unit is used for 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 base station indication.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to the 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 common physical resource block index is Q.
In a fourth aspect, the present invention provides an apparatus for indicating a frequency domain position of a bandwidth part, the apparatus being located in 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 the common physical resource block index.
In a fifth aspect, the present invention provides a user equipment, where the user equipment includes the above device located at a frequency domain position of an indicated bandwidth portion of the user equipment.
In a sixth aspect, the present invention provides a base station comprising the above-mentioned means for indicating the frequency domain position of the bandwidth part of the base station.
The method, the device, the user equipment and the base station for indicating the frequency domain position of the bandwidth part provided by the embodiment of the invention indicate 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 or indicate the offset of the resource block level of the first resource block corresponding to the common physical resource block index of the user equipment and the offset of the subcarrier level of the first resource block corresponding to the bandwidth part of the user equipment to the common physical resource block index to the user equipment, thereby realizing flexible indication of the frequency domain position of the bandwidth part.
Drawings
FIG. 1 is a flow chart of a method of indicating the frequency domain location of a bandwidth portion according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method of indicating frequency domain locations of bandwidth portions according to another embodiment of the present invention;
FIG. 3 is a flow chart of a method of indicating the frequency domain location of a bandwidth portion according to yet another embodiment of the present invention;
FIG. 4 is a flow chart of a method of indicating the frequency domain location of a bandwidth portion according to yet another embodiment of the present invention;
Fig. 5 is a schematic structural diagram of an apparatus for indicating a frequency domain position of a bandwidth part according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus for indicating a frequency domain position of a bandwidth part according to another embodiment of the present invention;
Fig. 7 is a schematic structural diagram of an apparatus for indicating a frequency domain position of a bandwidth part according to still 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 still another embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the embodiment of the invention, 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 can 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 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 can be expressed as the offset of the subcarrier #0 corresponding to the common physical resource block index and the subcarrier #0 of the synchronous 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, as shown in fig. 1, and the method includes:
S11, 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 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 by receiving the base station indication.
According to the method for indicating the frequency domain position of the bandwidth part, the base station indication is received, 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 are obtained, and therefore flexible indication of the frequency domain position of the bandwidth part can be achieved.
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, as shown in fig. 2, and 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 above-mentioned offset of the resource block level indicating the resource block grid corresponding to the common physical resource block index and 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 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 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, so that flexible indication of the frequency domain position of the bandwidth part can be realized.
Specifically, the user equipment may obtain 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 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 grid of the synchronization signal block by receiving the offset of 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.
Specifically, the user equipment may obtain 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 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 grid of the synchronization signal block by receiving the offset of the first subcarrier of the common physical resource block index and the first subcarrier of the synchronization signal block indicated by the base station.
The subcarrier interval is a subcarrier interval corresponding to a synchronous signal block or a subcarrier interval corresponding to a common physical resource block index.
Specifically, 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 includes:
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 is 0, or
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 is a preset integer subcarrier, or
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 is equal to the offset of the subcarrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block, wherein the offset of the subcarrier 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, or
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 is equal to the offset of the subcarrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T subcarriers, wherein the offset of the subcarrier 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.
The method for obtaining the offset of the first resource block of the common physical resource block index and the first resource block of the synchronization signal block by the user equipment may be that the offset of the first resource block of the common physical resource block index and the first resource block of the synchronization signal block is determined to be 12X x+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 synchronization signal block is X, 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 synchronization 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.
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 acquired, the subcarrier interval is the subcarrier interval corresponding to the RMSI bandwidth part.
An embodiment of 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, as shown in fig. 3, and the method includes:
S31, through receiving the base station indication, 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 are obtained.
According to the method for indicating the frequency domain position of the bandwidth part, the base station indication is received, so that 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 are obtained, and flexible indication of the frequency domain position of the bandwidth part can be realized.
An embodiment of the present invention provides another method for indicating a frequency domain position of a bandwidth part, 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 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 common physical resource block index to the user equipment.
The method for indicating the frequency domain position of the bandwidth part indicates 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 common physical resource block index to the user equipment, so that flexible indication of the frequency domain position of the bandwidth part can be realized.
The subcarrier interval is a subcarrier interval corresponding to the common physical resource block index.
The method comprises the steps of determining that the offset of the first resource block corresponding to the bandwidth part and the first resource block corresponding to the common physical resource block index is 12 x P+Q subcarriers, wherein the offset of the 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 the 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 above-mentioned indication to the ue 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 common physical resource block index are sent to the ue through RRC signaling.
The embodiment of the invention also provides a device for indicating the frequency domain position of the bandwidth part, which is located in the user equipment, as shown in fig. 5, and comprises:
The first obtaining unit 11 is configured to obtain, by receiving the base station indication, a resource block level offset of a resource block grid corresponding to the common physical resource block index and 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.
According to the device for indicating the frequency domain position of the bandwidth part, the base station indication is received, 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 are obtained, and therefore flexible indication of the frequency domain position of the bandwidth part can be achieved.
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 indicated by a base station, an offset 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.
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 indicated by a base station and a first subcarrier of a synchronization signal block, an offset 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 grid of the synchronization signal block.
Optionally, 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.
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 includes:
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 is 0, or
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 is a preset integer subcarrier, or
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 is equal to the offset of the subcarrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block, wherein the offset of the subcarrier 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, or
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 is equal to the offset of the subcarrier level of the resource block grid of the RMSI bandwidth part and the resource block grid of the synchronization signal block plus T subcarriers, wherein the offset of the subcarrier 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 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.
The apparatus of this embodiment may be used to execute the technical scheme of the method embodiment located in the user equipment corresponding to fig. 1, and its implementation principle and technical effect are similar, and are not repeated herein.
In a fourth aspect, the present invention provides an apparatus for indicating a frequency domain position of a bandwidth part, the apparatus being located in 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 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 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 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, so that flexible indication of the frequency domain position of the bandwidth part can be realized.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to the synchronization signal block or a subcarrier spacing corresponding to the common physical resource block index.
The apparatus of this embodiment may be used to execute the technical scheme of the method embodiment located in the base station corresponding to fig. 2, and its implementation principle and technical effects are similar, and are not repeated here.
In a ninth aspect, the present invention provides another apparatus for indicating a frequency domain position of a bandwidth part, the apparatus being located in a user equipment, as shown in fig. 7, the apparatus comprising:
The second obtaining unit 31 is configured to obtain, by receiving the base station indication, 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 a first resource block corresponding to the user equipment bandwidth portion and the common physical resource block index.
According to the device for indicating the frequency domain position of the bandwidth part, the base station indication is received, so that 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 are obtained, and flexible indication of the frequency domain position of the bandwidth part can be realized.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to the 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 used to execute the technical scheme of the method embodiment located in the user equipment corresponding to fig. 3, and its implementation principle and technical effect are similar, and are not repeated herein.
In a tenth aspect, the present invention provides another apparatus for indicating a frequency domain position of a bandwidth part, the apparatus being located at a base station, as shown in fig. 8, the apparatus comprising:
The second indicating unit 41 is configured to indicate, to the user equipment, an offset of a resource block level of a first resource block corresponding to the user equipment bandwidth part and a first resource block corresponding to the common physical resource block index, and an offset of a subcarrier level of a first resource block corresponding to the user equipment bandwidth part and the common physical resource block index.
The device for indicating the frequency domain position of the bandwidth part indicates 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 common physical resource block index to the user equipment, so that flexible indication of the frequency domain position of the bandwidth part can be realized.
Optionally, the subcarrier spacing is a subcarrier spacing corresponding to the common physical resource block index.
The apparatus of this embodiment may be used to execute the technical scheme of the method embodiment located in the base station corresponding to fig. 4, and its implementation principle and technical effect are similar, and are not repeated here.
The embodiment of the invention also provides the user equipment, and the base station comprises the device which corresponds to the figure 5 and is positioned at the frequency domain position of the indication bandwidth part of the user equipment.
The embodiment of the invention also provides a base station, which comprises the device which corresponds to the figure 6 and is positioned at the frequency domain position of the indication bandwidth part of the base station.
The embodiment of the invention also provides another user equipment, and the base station comprises the device which corresponds to the figure 7 and is positioned at the frequency domain position of the indication bandwidth part of the user equipment.
The embodiment of the invention also provides another base station, which comprises the device which corresponds to the figure 8 and is positioned at the frequency domain position of the indication bandwidth part of the base station.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps 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 (Random Access Memory, RAM), or the like.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
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| CN104885502A (en) * | 2013-01-02 | 2015-09-02 | Lg电子株式会社 | Method for measuring interference in wireless communication system, and apparatus therefor |
| WO2017043856A1 (en) * | 2015-09-07 | 2017-03-16 | 엘지전자 주식회사 | Method for receiving downlink reference signal in wireless communication system and apparatus therefor |
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| US9185716B2 (en) * | 2013-01-03 | 2015-11-10 | Samsung Electronics Co., Ltd. | Obtaining control channel elements of physical downlink control channels for cross-carrier scheduling |
| WO2016086405A1 (en) * | 2014-12-05 | 2016-06-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and bs for scheduling ue and method and ue for transmitting harq |
| JP6504482B2 (en) * | 2015-01-30 | 2019-04-24 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Apparatus and method for determining subband resources |
| CN106332286B (en) * | 2015-06-30 | 2022-01-28 | 中兴通讯股份有限公司 | Spectrum resource allocation method and device |
| CN106961315B (en) * | 2016-01-11 | 2020-03-17 | 电信科学技术研究院 | Narrowband PBCH transmission method and device |
| US10477537B2 (en) * | 2016-02-11 | 2019-11-12 | Qualcomm Incorporated | Multi-PRB operation for narrowband systems |
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| CN104885502A (en) * | 2013-01-02 | 2015-09-02 | Lg电子株式会社 | Method for measuring interference in wireless communication system, and apparatus therefor |
| WO2017043856A1 (en) * | 2015-09-07 | 2017-03-16 | 엘지전자 주식회사 | Method for receiving downlink reference signal in wireless communication system and apparatus therefor |
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