CN109788560B - Configuration method and device for associating uplink and downlink part carrier bandwidths and base station - Google Patents
Configuration method and device for associating uplink and downlink part carrier bandwidths and base station Download PDFInfo
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Abstract
The invention provides a configuration method, a device and a base station for associating uplink and downlink part carrier bandwidths. The method comprises the following steps: a base station configures basic information of DL BWP and basic information of UL BWP through RRC signaling, and configures indication information of each uplink and downlink partial carrier bandwidth pair, wherein the indication information indicates DL BWP and UL BWP contained in the uplink and downlink partial carrier bandwidth pairs; or configuring basic information and indication information of DL BWP, and basic information and indication information of UL BWP, where the indication information of DL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the DL BWP belongs, and the indication information of UL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the UL BWP belongs. The invention can identify the configuration information of the uplink part carrier bandwidth and the downlink part carrier bandwidth contained in each uplink and downlink part carrier bandwidth pair, and reduces the signaling overhead.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a base station for configuring uplink and downlink partial carrier bandwidth in an associated manner.
Background
In the 5G system, UEs (User equipments) with different bandwidth receiving capabilities are supported. In order to support UEs of different bandwidth capabilities, the 3GPP (3rd Generation Partnership Project) organization proposes a definition of a partial carrier Bandwidth (BWP). Each BWP has the following characteristics: subcarrier spacing (SCS), CP (Cyclic Prefix) type, frequency domain location, and bandwidth length.
Meanwhile, in order to save power consumption of the UE, the network may configure a plurality of BWPs with different bandwidth lengths or different Numerology (parameter set) for the UE according to the bandwidth reception capability of the UE, and these BWPs need to be limited within the maximum reception bandwidth range of the UE. The UE or the network may adaptively adjust the BWP used according to the service requirement and the load condition of the UE, so as to save the power consumption of the UE and improve the transmission rate.
After the UE and the base station complete RRC (Radio Resource Control) connection, the base station configures one or more BWPs for the UE according to service requirements of the UE. BWP activation may be performed through RRC signaling or a scheduling DCI (Downlink Control Information).
In the current R15 version, only one active BWP at a time is supported, and when the BWP to be activated is indicated with the scheduling DCI, the BWP currently transmitting the scheduling DCI is deactivated by default.
When a base station configures BWP for a UE, for an unpaired spectrum deployment scenario, DL BWP (downlink BWP) and UL BWP (uplink BWP) are required to be jointly configured into a DL/UL BWP pair (uplink and downlink partial carrier bandwidth pair), and DL BWP and UL BWP in the DL/UL BWP pair need to share the same central frequency point, but may have different bandwidth lengths and/or parameter sets.
Therefore, there are the following scenarios:
scene 1: as shown in fig. 1, one DL BWP and one UL BWP belong to only one DL/UL BWP pair:
DL/UL BWP pair1:DL BWP1,UL BWP1
DL/UL BWP pair2:DL BWP2,UL BWP2
DL/UL BWP pair3:DL BWP3,UL BWP3
DL/UL BWP pair4:DL BWP4,UL BWP4
scene 2: as shown in fig. 2, one UL BWP may belong to a plurality of DL/UL BWP pairs:
DL/UL BWP pair1:DL BWP1,UL BWP1
DL/UL BWP pair2:DL BWP2,UL BWP1
DL/UL BWP pair3:DL BWP3,UL BWP2
DL/UL BWP pair4:DL BWP4,UL BWP2
scene 3: as shown in fig. 3, one DL BWP may belong to a plurality of DL/UL BWP pair:
DL/UL BWP pair1:DL BWP1,UL BWP1
DL/UL BWP pair2:DL BWP1,UL BWP2
DL/UL BWP pair3:DL BWP2,UL BWP3
DL/UL BWP pair2:DL BWP2,UL BWP4
scene 4: as shown in fig. 4, a plurality of DL BWPs and a plurality of UL BWPs belong to a plurality of DL/UL BWP pairs:
DL/UL BWP pair1:DL BWP1,UL BWP1
DL/UL BWP pair2:DL BWP1,UL BWP2
DL/UL BWP pair3:DL BWP2,UL BWP1
DL/UL BWP pair4:DL BWP2,UL BWP2
the base station needs to perform adaptive conversion according to DL/UL BWP pair, and therefore, when configuring DL BWP and UL BWP, the base station needs to identify the DL/UL BWP pair to which it belongs.
If the configuration is performed according to DL/UL BWP pair, for scenarios 2, 3 and 4, if the same DL BWP or UL BWP belongs to different DL/UL BWP pairs, the corresponding configuration information (including subcarrier spacing, CP type, frequency domain position information and bandwidth length information) will appear multiple times, thereby increasing unnecessary signaling overhead.
Disclosure of Invention
The configuration method, the device and the base station related to the uplink and downlink part carrier bandwidths can identify the configuration information of the uplink part carrier bandwidth and the downlink part carrier bandwidth contained in each uplink and downlink part carrier bandwidth pair, and reduce the signaling overhead.
In a first aspect, the present invention provides a method for configuring uplink and downlink fractional carrier bandwidth, including:
configuring basic information of DL BWP and basic information of UL BWP through RRC signaling, and configuring indication information of each uplink and downlink partial carrier bandwidth pair, wherein the indication information indicates DL BWP and UL BWP contained in the uplink and downlink partial carrier bandwidth pairs; or configuring basic information and indication information of DL BWP, and basic information and indication information of UL BWP, where the indication information of DL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the DL BWP belongs, and the indication information of UL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the UL BWP belongs.
Optionally, the indication information of the uplink and downlink fractional carrier bandwidth pair is bitmap, where the length of bitmap is the number of the configurable maximum uplink and downlink fractional carrier bandwidth pairs, or the length of bitmap is [ ceil (log2(X)) + ceil (log2(Y)) ] bit, where X is the number of configured DL BWPs and Y is the number of configured UL BWPs.
Optionally, the indication information of the uplink and downlink fractional carrier bandwidth pair is an index of DL BWP and UL BWP, where the bit number of the index is fixed, or the bit number of the index is determined according to the number of configured DL BWP or UL BWP.
Optionally, the index of the DL BWP is implicitly determined from a list entry of configured DL BWPs, or an indication is displayed when configuring DL BWPs.
Optionally, the DL BWP indication information is bitmap, and each bit of the bitmap indicates whether the current DL BWP belongs to a corresponding uplink and downlink partial carrier bandwidth pair; the indicating information of the UL BWP is bitmap, and each bit of the bitmap indicates whether the current UL BWP belongs to a corresponding uplink and downlink partial carrier bandwidth pair; the length of the bitmap is the number of configurable maximum uplink and downlink part carrier bandwidth pairs or the number of currently configured uplink and downlink part carrier bandwidth pairs.
Optionally, the basic information of the DL BWP and the basic information of the UL BWP include subcarrier spacing, CP type, frequency domain position information, and bandwidth length information, respectively.
Optionally, the default uplink and downlink partial carrier bandwidth pair is determined according to a minimum value of the configured uplink and downlink partial carrier bandwidth pair, or an indication is displayed when the uplink and downlink partial carrier bandwidth pair is configured.
In a second aspect, the present invention provides a device for configuring bandwidth association between uplink and downlink fractional carriers, including:
a configuration unit, configured to configure basic information of DL BWP and basic information of UL BWP through RRC signaling, and configure indication information of each uplink and downlink fractional carrier bandwidth pair, where the indication information indicates DL BWP and UL BWP included in the uplink and downlink fractional carrier bandwidth pair; or configuring basic information and indication information of DL BWP, and basic information and indication information of UL BWP, where the indication information of DL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the DL BWP belongs, and the indication information of UL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the UL BWP belongs.
Optionally, the indication information of the uplink and downlink fractional carrier bandwidth pair is bitmap, where the length of bitmap is the number of the configurable maximum uplink and downlink fractional carrier bandwidth pairs, or the length of bitmap is [ ceil (log2(X)) + ceil (log2(Y)) ] bit, where X is the number of configured DL BWPs and Y is the number of configured UL BWPs.
Optionally, the indication information of the uplink and downlink partial carrier bandwidth pair is an index of DL BWP and UL BWP, where the bit number of the index is fixed, or the bit number of the index is determined according to the number of configured DL BWP or UL BWP.
Optionally, the index of the DL BWP is implicitly determined from a list entry of configured DL BWPs, or an indication is displayed when configuring DL BWPs.
Optionally, the DL BWP indication information is bitmap, and each bit of the bitmap indicates whether the current DL BWP belongs to a corresponding uplink and downlink partial carrier bandwidth pair; the indicating information of the UL BWP is bitmap, and each bit of the bitmap indicates whether the current UL BWP belongs to a corresponding uplink and downlink partial carrier bandwidth pair; the length of the bitmap is the number of configurable maximum uplink and downlink part carrier bandwidth pairs or the number of currently configured uplink and downlink part carrier bandwidth pairs.
Optionally, the basic information of the DL BWP and the basic information of the UL BWP include subcarrier spacing, CP type, frequency domain position information, and bandwidth length information, respectively.
Optionally, the default uplink and downlink partial carrier bandwidth pair is determined according to a minimum value of the configured uplink and downlink partial carrier bandwidth pair, or an indication is displayed when the uplink and downlink partial carrier bandwidth pair is configured.
In a third aspect, the present invention provides a base station, where the base station includes the configuration device associated with the uplink and downlink fractional carrier bandwidths.
In the method, the apparatus, and the base station for configuring uplink and downlink fractional carrier bandwidth associations provided in the embodiments of the present invention, the base station configures, by using RRC signaling, indication information for indicating DL BWP and UL BWP included in the uplink and downlink fractional carrier bandwidth pairs for each uplink and downlink fractional carrier bandwidth pair, or configures, for each DL BWP and UL BWP, indication information for indicating an uplink and downlink fractional carrier bandwidth pair to which the DL BWP or the UL BWP belongs, so that DL BWP and UL BWP configuration information included in each uplink and downlink fractional carrier bandwidth pair can be identified, and overhead of signaling is reduced.
Drawings
Fig. 1 to fig. 4 are schematic diagrams of four different scenarios in which DL BWP and UL BWP are jointly configured as uplink and downlink fractional carrier bandwidth pairs;
fig. 5 is a flowchart of a configuration method associated with uplink and downlink partial carrier bandwidths according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a configuration apparatus associated with uplink and downlink partial carrier bandwidths according to an 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.
An embodiment of the present invention provides a method for configuring uplink and downlink partial carrier bandwidth in association, where the method is applied to a base station side, and as shown in fig. 5, the method includes:
s51, configuring basic information of DL BWP and basic information of UL BWP by the base station through RRC signaling, and configuring indication information of each uplink and downlink partial carrier bandwidth pair, wherein the indication information indicates DL BWP and UL BWP contained in the uplink and downlink partial carrier bandwidth pairs; or configuring basic information and indication information of DL BWP, and basic information and indication information of UL BWP, where the indication information of DL BWP is used to indicate the uplink and downlink partial carrier bandwidth pair to which the DL BWP belongs, and the indication information of UL BWP is used to indicate the uplink and downlink partial carrier bandwidth pair to which the UL BWP belongs.
The uplink and downlink fractional carrier bandwidth associated configuration method provided in the embodiment of the present invention configures, by RRC signaling, indication information for indicating the DL BWP and the UL BWP included in the uplink and downlink fractional carrier bandwidth pair for each uplink and downlink fractional carrier bandwidth pair, or configures, for each DL BWP and UL BWP, indication information for indicating the uplink and downlink fractional carrier bandwidth pair to which the DL BWP or the UL BWP belongs, so as to be able to identify the DL BWP and UL BWP configuration information included in each uplink and downlink fractional carrier bandwidth pair, and reduce signaling overhead.
Optionally, the following two schemes may be adopted for configuring the uplink and downlink fractional carrier bandwidth association.
Scheme 1: DL BWP information and UL BWP information are configured independently, DL BWP and UL BWP contained in each uplink and downlink partial carrier bandwidth pair are indicated through the displayed uplink and downlink partial carrier bandwidth pair list configuration, and the index of the DL BWP or UL BWP can be obtained through a configured DL BWP or UL BWP list entry in a bitmap or BWP index value mode. The RRC configuration information comprises a DL BWP configuration list, a UL BWP configuration list and a DL BWP/UL BWP pair configuration list, and the base station can configure one or more DL BWPs and one or more UL BWPs for the UE; the concrete configuration is as follows:
DL BWP configuration: DL BWP configuration list (size (X)), where the DL BWP configuration number is X, and the configuration information includes:
SCS：xbit
CP：1bit
frequency domain position: ybit
Bandwidth length: zbit
UL BWP configuration: UL BWP configuration list (size (x)), where the UL BWP configuration number is Y, and the configuration information includes:
SCS：x’bit
CP：1bit
frequency domain position: y' bit
Bandwidth length: z' bit
DL BWP/UL BWP pair configuration list (size (Z)), the number of DL BWP/UL BWP pairs configured is Z, X < ═ Z, Y < ═ Z, and the configuration information may be one of the following two types:
configuration information 1: bitmap
The bitmap length is fixed. The bitmap length can be fixed as the configurable maximum DL BWP/UL BWP pair number, the currently specified maximum DL BWP/UL BWP pair number is 4, then the left 2 bits in the bitmap indicate the index of DL BWP, and the right 2 bits indicate the index of UL BWP; or
Variable bitmap length. The bitmap length is [ ceil (log2(X)) + ceil (log2(Y)) ] bit, the left ceil (log2(X)) bit indicates the index of DL BWP, the right ceil (log2(Y)) bit indicates the index of UL BWP, and the configured DL BWP and UL BWP number determine the bitmap length.
Configuration information 2: index directly indicating contained DL BWP and UL BWP
DL BWP index: the integer value, fixed bit length or variable bit length, is ceil (log2(X), depending on the number of DL BWPs configured.
UL BWP index: the integer value, fixed bit length or variable bit length, is ceil (log2(Y), depending on the number of DL BWPs configured.
Scheme 2: the DL BWP information and UL BWP information are configured independently, and at the same time, the uplink and downlink partial carrier bandwidth pair to which each DL BWP and each UL BWP belong is indicated by means of bitmap (P3P2P1P 0). The RRC configuration information includes a DL BWP configuration list and a UL BWP configuration list. And when DL BWP configuration and UL BWP configuration are carried out, bitmap information is introduced to implicitly indicate an uplink and downlink part carrier bandwidth pair to which each DL BWP and UL BWP belong, and a bitmap corresponding to a bit implicitly identifies an index of the uplink and downlink part carrier bandwidth pair and sequences from right to left or from left to right. If the maximum number of the currently configurable uplink and downlink fractional carrier bandwidth pairs is 4, the bitmap length is 4 or the number of the configured uplink and downlink fractional carrier bandwidth pairs is indicated, P3P2P1P0, the P3 bits indicate whether the current DL BWP or UL BWP belongs to DL BWP/UL BWP pair3, the P2 bits indicate whether the current DL BWP or UL BWP belongs to DL BWP/UL BWP pair2, and so on, the following is specifically configured:
DL BWP configuration: DL BWP configuration list (size (X)), the number of DL BWP configurations is X, and the configuration information includes:
SCS：xbit
CP：1bit
frequency domain position: ybit
Bandwidth length: zbit
The DL BWP/UL BWP pair information indicates: P3P2P1P0(bitmap)
UL BWP configuration: UL BWP configuration list (size (Y)), where the UL BWP configuration number is Y, and the configuration information includes:
SCS：x’bit
CP：1bit
frequency domain position: y' bit
Bandwidth length: z' bit
The DL BWP/UL BWP pair information indicates: P3P2P1P0(bitmap)
The minimum index of the uplink and downlink part carrier bandwidth pair is a default uplink and downlink part carrier bandwidth pair or an indication of the uplink and downlink part carrier bandwidth pair displayed during configuration.
The following describes in detail a configuration method associated with uplink and downlink partial carrier bandwidths according to a specific embodiment of the present invention.
Example 1
In the scenario shown in fig. 2, one UL BWP and multiple DL BWPs may form multiple uplink and downlink fractional carrier bandwidth pairs, and there are 4 uplink and downlink fractional carrier bandwidth pairs:
DL BWP1 and UL BWP1 form DL/UL BWP pair1
DL BWP2 and UL BWP1 form DL/UL BWP pair2
DL BWP3 and UL BWP2 form DL/UL BWP pair3
DL BWP4 and UL BWP2 form DL/UL BWP pair4
By adopting the configuration information 1 in the above scheme 1 and fixing the bitmap length of 4 bits, the configuration information of the corresponding uplink and downlink partial carrier bandwidth pair list is as follows:
DL BWP/UL BWP pair configuration list(size(4))
DL/UL BWP pair1:0000
DL/UL BWP pair2:0100
DL/UL BWP pair3:1001
DL/UL BWP pair4:1101
a bitmap length of [ ceil (log2(X)) + ceil (log2(Y)) ] bit
DL BWP/UL BWP pair configuration list(size(4))
DL/UL BWP pair1:000, left 2 bits indicating DL BWP index
DL/UL BWP pair2:010
DL/UL BWP pair3:101
DL/UL BWP pair4:111
Using configuration information 2 in above scenario 1, DL BWP/UL BWP pair configuration list (size (4))
DL/UL BWP pair1:
The DL BWP index is equal to 1,
UL BWP index is 1
DL/UL BWP pair2:
The DL BWP index is 2,
UL BWP index is 1
DL/UL BWP pair3:
The DL BWP index is 3,
UL BWP index 2
DL/UL BWP pair4:
The DL BWP index is 4,
UL BWP index 2
Wherein, DL/UL BWP pair1 is a default uplink and downlink fractional carrier bandwidth pair.
Example 2
In the scenario shown in fig. 4, one UL BWP and multiple DL BWPs may form multiple uplink and downlink fractional carrier bandwidth pairs, and there are 4 uplink and downlink fractional carrier bandwidth pairs:
DL BWP1 and UL BWP1 form DL/UL BWP pair1
DL BWP1 and UL BWP2 form DL/UL BWP pair2
DL BWP2 and UL BWP1 form DL/UL BWP pair3
DL BWP2 and UL BWP2 form DL/UL BWP pair4
By adopting the above scheme 2, the fixed bitmap length is 4 bits, and the bitmap in each DL BWP and each UL BWP configuration information is set as:
DL BWP1 bitmap,0011, DL BWP1 belong to pair1 and 2
DL BWP2 bitmap,1100 DL BWP2 belongs to pair3 and pair4
UL BWP1 bitmap,0101, UL BWP1 belong to pair1 and 3
UL BWP2 bitmap,1010 UL BWP2 belongs to pair2 and 4
Whereby the configuration may implicitly obtain:
pair1 includes DL BWP1 and UL BWP 1;
pair2 contains DL BWP1 and UL BWP 2;
pair3 includes DL BWP2 and UL BWP 1;
pair4 contains DL BWP2 and UL BWP 2.
Wherein, DL/UL BWP pair1 is a default uplink and downlink fractional carrier bandwidth pair.
An embodiment of the present invention further provides a device for configuring bandwidth association between uplink and downlink partial carriers, where as shown in fig. 6, the device includes:
a configuring unit 51, configured to configure basic information of DL BWP and basic information of UL BWP through RRC signaling, and configure indication information of each uplink and downlink partial carrier bandwidth pair, where the indication information indicates DL BWP and UL BWP included in the uplink and downlink partial carrier bandwidth pair; or configuring basic information and indication information of DL BWP, and basic information and indication information of UL BWP, where the indication information of DL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the DL BWP belongs, and the indication information of UL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the UL BWP belongs.
The configuration apparatus associated with the uplink and downlink fractional carrier bandwidths provided in the embodiment of the present invention configures, by using RRC signaling, indication information for indicating the DL BWP and the UL BWP included in the uplink and downlink fractional carrier bandwidth pair for each uplink and downlink fractional carrier bandwidth pair, or configures, for each DL BWP and UL BWP, indication information for indicating the uplink and downlink fractional carrier bandwidth pair to which the DL BWP or the UL BWP belongs, so that the DL BWP and UL BWP configuration information included in each uplink and downlink fractional carrier bandwidth pair can be identified, and the signaling overhead is reduced.
Optionally, the indication information of the uplink and downlink fractional carrier bandwidth pair is bitmap, where the length of bitmap is the number of the configurable maximum uplink and downlink fractional carrier bandwidth pairs, or the length of bitmap is [ ceil (log2(X)) + ceil (log2(Y)) ] bit, where X is the number of configured DL BWPs and Y is the number of configured UL BWPs.
Optionally, the indication information of the uplink and downlink fractional carrier bandwidth pair is an index of DL BWP and UL BWP, where the bit number of the index is fixed, or the bit number of the index is determined according to the number of configured DL BWP or UL BWP.
Optionally, the index of the DL BWP is implicitly determined from a list entry of configured DL BWPs, or an indication is displayed when configuring DL BWPs.
Optionally, the DL BWP indication information is bitmap, and each bit of the bitmap indicates whether the current DL BWP belongs to a corresponding uplink and downlink partial carrier bandwidth pair; the indicating information of the UL BWP is bitmap, and each bit of the bitmap indicates whether the current UL BWP belongs to a corresponding uplink and downlink partial carrier bandwidth pair; the length of the bitmap is the number of configurable maximum uplink and downlink part carrier bandwidth pairs or the number of currently configured uplink and downlink part carrier bandwidth pairs.
Optionally, the basic information of DL BWP and the basic information of UL BWP include subcarrier spacing, CP type, frequency domain position information, and bandwidth length information, respectively.
Optionally, the default uplink and downlink partial carrier bandwidth pair is determined according to a minimum value of the configured uplink and downlink partial carrier bandwidth pair, or an indication is displayed when the uplink and downlink partial carrier bandwidth pair is configured.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
The embodiment of the invention also provides a base station, which comprises the configuration device related to the bandwidths of the uplink and downlink part carriers.
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 (13)
1. A method for configuring uplink and downlink fractional carrier bandwidth association, comprising:
configuring basic information of a downlink part carrier bandwidth DL BWP and basic information of an uplink part carrier bandwidth UL BWP through radio resource control RRC signaling, and configuring indication information of each uplink and downlink part carrier bandwidth pair, wherein the indication information indicates DL BWP and UL BWP contained in the uplink and downlink part carrier bandwidth pairs; or configuring basic information and indication information of DL BWP, and basic information and indication information of UL BWP, where the indication information of DL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the DL BWP belongs, and the indication information of UL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the UL BWP belongs; wherein the basic information of the DL BWP and the basic information of the UL BWP include subcarrier spacing, CP type, frequency domain position information, and bandwidth length information, respectively.
2. The method of claim 1, wherein the indication information of the uplink and downlink fractional carrier bandwidth pair is bitmap, wherein the length of bitmap is the number of the configurable maximum uplink and downlink fractional carrier bandwidth pairs, or the length of bitmap is [ ceil (log2(X)) + ceil (log2(Y)) ] bit, where X is the number of configured DL BWPs and Y is the number of configured UL BWPs.
3. The method according to claim 1, wherein the indication information of the uplink and downlink fractional carrier bandwidth pair is an index of DL BWP and UL BWP, and wherein the number of bits of the index is fixed, or the number of bits of the index is determined according to the number of configured DL BWP or UL BWP.
4. The method according to claim 3, wherein the index of the DL BWP is implicitly determined from a list entry of configured DL BWPs or an indication is displayed when a DL BWP is configured.
5. The method according to claim 1, wherein the DL BWP indication information is bitmap, each bit of which indicates whether the current DL BWP belongs to a corresponding uplink and downlink fractional carrier bandwidth pair; the indicating information of the UL BWP is bitmap, and each bit of the bitmap indicates whether the current UL BWP belongs to a corresponding uplink and downlink partial carrier bandwidth pair; the length of the bitmap is the number of configurable maximum uplink and downlink part carrier bandwidth pairs or the number of currently configured uplink and downlink part carrier bandwidth pairs.
6. The method according to any of claims 1 to 5, wherein the default uplink and downlink fractional carrier bandwidth pair is determined according to the minimum value of the configured uplink and downlink fractional carrier bandwidth pair, or an indication is displayed when the uplink and downlink fractional carrier bandwidth pair is configured.
7. An apparatus for configuring uplink and downlink fractional carrier bandwidth association, comprising:
a configuration unit, configured to configure basic information of DL BWP and basic information of UL BWP through RRC signaling, and configure indication information of each uplink and downlink fractional carrier bandwidth pair, where the indication information indicates DL BWP and UL BWP included in the uplink and downlink fractional carrier bandwidth pair; or configuring basic information and indication information of DL BWP, and basic information and indication information of UL BWP, where the indication information of DL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the DL BWP belongs, and the indication information of UL BWP is used to indicate the uplink and downlink fractional carrier bandwidth pair to which the UL BWP belongs; wherein the basic information of the DL BWP and the basic information of the UL BWP include subcarrier spacing, CP type, frequency domain position information, and bandwidth length information, respectively.
8. The apparatus of claim 7, wherein the indication information of the uplink and downlink fractional carrier bandwidth pair is bitmap, wherein the length of bitmap is the number of the configurable maximum uplink and downlink fractional carrier bandwidth pairs, or the length of bitmap is [ ceil (log2(X)) + ceil (log2(Y)) ] bit, where X is the number of configured DL BWPs and Y is the number of configured UL BWPs.
9. The apparatus according to claim 7, wherein the indication information of the uplink and downlink fractional carrier bandwidth pair is an index of DL BWP and UL BWP, and wherein the number of bits of the index is fixed, or the number of bits of the index is determined according to the number of configured DL BWP or UL BWP.
10. The apparatus of claim 9, wherein the index of the DL BWP is implicitly determined from a list entry of configured DL BWPs or an indication is displayed when configuring DL BWPs.
11. The apparatus according to claim 7, wherein the DL BWP indication information is bitmap, each bit of which indicates whether the current DL BWP belongs to a corresponding uplink and downlink fractional carrier bandwidth pair; the indicating information of the UL BWP is bitmap, and each bit of the bitmap indicates whether the current UL BWP belongs to a corresponding uplink and downlink partial carrier bandwidth pair; the length of the bitmap is the number of configurable maximum uplink and downlink part carrier bandwidth pairs or the number of currently configured uplink and downlink part carrier bandwidth pairs.
12. The apparatus according to any of claims 7 to 11, wherein the default uplink and downlink fractional carrier bandwidth pair is determined according to a minimum value of the configured uplink and downlink fractional carrier bandwidth pair, or an indication is displayed when the configured uplink and downlink fractional carrier bandwidth pair.
13. A base station, characterized in that the base station comprises the configuration device associated with the uplink and downlink fractional carrier bandwidths according to any one of claims 7 to 12.
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| CN117643128A (en) * | 2021-12-09 | 2024-03-01 | 中兴通讯股份有限公司 | System and method for managing frequency resource group based service transmissions |
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