CN116489800B - Mapping relation determining method and device, storage medium and base station - Google Patents

Mapping relation determining method and device, storage medium and base station Download PDF

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CN116489800B
CN116489800B CN202310708417.2A CN202310708417A CN116489800B CN 116489800 B CN116489800 B CN 116489800B CN 202310708417 A CN202310708417 A CN 202310708417A CN 116489800 B CN116489800 B CN 116489800B
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ssb
resources
beam direction
determining
mapping relation
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CN116489800A (en
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赵旭
刘继超
张玉冰
甘杰
刘晗
李正浩
崔丙锋
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Beijing Smartchip Microelectronics Technology Co Ltd
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Beijing Smartchip Microelectronics Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0891—Non-scheduled access, e.g. ALOHA using a dedicated channel for access for synchronized access

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a mapping relation determining method and device, a storage medium and a base station, which relate to the technical field of communication, wherein the base station can determine the mapping relation between SSB and RO resources according to the number of UE in at least one beam direction, so that the flexibility of determining the mapping relation is improved. In addition, since the number of RO resources corresponding to each SSB is positively related to the number of UEs in the beam direction corresponding to the SSB, fewer RO resources can be provided for the beam direction with fewer UEs, more RO resources can be provided for the beam direction with more UEs, and the utilization rate of the RO resources is improved.

Description

Mapping relation determining method and device, storage medium and base station
Technical Field
The present application relates to the field of communications technologies, and in particular, to a mapping relationship determining method and apparatus, a storage medium, and a base station.
Background
In a 5G NR (new radio) mobile communication system, after determining a mapping relationship between a cell SSB (synchronization signaling block, synchronization signal block) and RO (RACH occision) resources, a base station may broadcast the mapping relationship, thereby enabling a UE (user equipment) to perform random access based on the mapping relationship.
In the related art, a base station generally allocates a fixed number of RO resources to each SSB in determining a mapping relationship between the SSB and the RO resources. The flexibility of mapping determination is low due to the fixed number of RO resources allocated for each SSB.
Disclosure of Invention
The present application aims to solve at least one of the technical problems in the related art to some extent. Therefore, a first object of the present application is to provide a mapping relationship determining method, which can improve the utilization rate of RO resources and improve the flexibility of mapping relationship determination.
A second object of the present application is to propose a computer readable storage medium.
A third object of the present application is to propose a base station.
A fourth object of the present application is to provide a mapping relation determining apparatus.
In order to achieve the above object, an embodiment of a first aspect of the present application provides a mapping relationship determining method, including: acquiring the number of UE in at least one beam direction in a cell; determining the mapping relation between SSB and RO resources according to the number of UE in at least one beam direction; wherein, at least one beam direction corresponds to at least one SSB one by one, and the number of RO resources corresponding to each SSB is positively correlated to the number of UEs in the beam direction corresponding to the SSB.
According to the mapping relation determining method provided by the embodiment of the application, the mapping relation between the SSB and the RO resources is determined according to the number of the UE in at least one beam direction, so that the flexibility of determining the mapping relation is improved, and as the number of the RO resources corresponding to each SSB is positively related to the number of the UE in the beam direction corresponding to the SSB, fewer RO resources can be provided for the beam directions with fewer UEs, more RO resources can be provided for the beam directions with more UEs, and the utilization rate of the RO resources is improved.
To achieve the above object, an embodiment of a second aspect of the present application provides a computer-readable storage medium having stored thereon a mapping relation determining program, which is a mapping relation determining method implemented when the mapping relation determining program is executed by a processor.
In order to achieve the above object, an embodiment of a third aspect of the present application provides a base station, including a memory, a processor, and a mapping relation determining program stored in the memory and capable of running on the processor, where the processor implements the mapping relation determining method when executing the mapping relation determining program.
To achieve the above object, a fourth aspect of the present application provides a mapping relation determining apparatus, including: an acquisition module, configured to acquire the number of UEs in at least one beam direction in a cell; the mapping relation determining module is used for determining the mapping relation between the SSB and the RO resources according to the number of the UE in at least one beam direction; wherein, at least one beam direction corresponds to at least one SSB one by one, and the number of RO resources corresponding to each SSB is positively correlated to the number of UEs in the beam direction corresponding to the SSB.
According to the mapping relation determining device provided by the embodiment of the application, the mapping relation between the SSB and the RO resources is determined according to the number of the UE in at least one beam direction, so that the flexibility of determining the mapping relation is improved, and as the number of the RO resources corresponding to each SSB is positively related to the number of the UE in the beam direction corresponding to the SSB, fewer RO resources can be provided for the beam directions with fewer UEs, more RO resources can be provided for the beam directions with more UEs, and the utilization rate of the RO resources is improved.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
FIG. 1 is a schematic diagram of a plurality of SSBs provided by the related art;
FIG. 2 is a flow chart of a mapping relationship determination method according to an embodiment of the present application;
FIG. 3 is a schematic diagram of SSB and RO in a 5G NR system according to one embodiment of the present application;
FIG. 4 is a flow chart illustrating the determination of the mapping relationship between SSB and RO resources according to one embodiment of the application;
FIG. 5 is a mapping relationship diagram of 8 SSBs and 32 RO resources according to one embodiment of the application;
fig. 6 is a schematic structural diagram of a mapping relation determining apparatus according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a mapping relation determining apparatus according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
In a 5G NR mobile communication system, an antenna array technology has become one of indispensable technologies for 5G NR, and the adoption of the antenna array technology provides a means for multiplexing radio resources in space. In the 5G NR downlink synchronization block signal, the base station may provide downlink SSB for UEs in different areas in the cell in a beam manner. Wherein the communication coverage of the base station may be divided into a plurality of sectors, and each sector may include a plurality of cells. As shown in fig. 1, the cells SSB1 to SSB8 may use 8 beams to transmit, and different beams will transmit one SSB to different beam directions, so that UEs in different directions in the cell can all receive the SSB.
PRACH (physical random access channel ) of 5G NR mobile communication system provides physical resources for UE to send preamble, and PRACH resources of one cell are pre-allocated fixedly in advance, cannot be used by other physical channels, and can be defined as RO resources by carrying to send one preamble PRACH resource block to a terminal. The base station may determine a mapping relationship between the SSB and the RO resource, and broadcast the mapping relationship after determining the mapping relationship between the SSB and the RO resource, thereby enabling the UE to perform random access based on the received mapping relationship.
In the related art, a base station generally allocates a fixed number of RO resources to each SSB in determining a mapping relationship between the SSB and the RO resources. However, in the practical application scenario, the applicant of the present application finds that, because the number of UEs distributed in different beam directions is different, the corresponding requirements of different beam directions on RO resources are also different, and the manner provided by the related technology will result in fewer RO resources corresponding to SSBs in some beam directions, and more RO resources corresponding to SSBs in other beam directions, so that the RO resources are lower in utilization rate. And, since a fixed number of RO resources are allocated to each SSB, the flexibility of the mapping relationship determination is low.
In order to solve the technical problems, the application provides a mapping relation determining method and device, a storage medium and a base station.
The following describes a mapping relation determining method, a device, a storage medium and a base station according to an embodiment of the present application with reference to fig. 2 to 7.
Fig. 2 is a flowchart of a mapping relation determining method according to an embodiment of the present application. As shown in fig. 2, the mapping relation determining method includes the steps of:
s101, acquiring the number of UE in at least one beam direction in a cell.
The base station may divide the cell into at least one beam direction and may acquire the number of UEs in the at least one beam direction in the cell.
In the embodiment of the present application, the number of UEs in the at least one beam direction may be stored in advance in the base station, so that the base station may directly acquire the pre-stored number of UEs in the at least one beam direction.
S102, determining the mapping relation between SSB and RO resources according to the number of UE in at least one beam direction; wherein, at least one beam direction corresponds to at least one SSB one by one, and the number of RO resources corresponding to each SSB is positively correlated to the number of UEs in the beam direction corresponding to the SSB.
Specifically, after acquiring the number of UEs in at least one beam direction in the cell, the base station may determine a mapping relationship between SSB and RO resources according to the number of UEs in at least one beam direction.
Wherein, at least one beam direction corresponds to at least one SSB one-to-one, i.e. there is one SSB per beam direction. The number of RO resources corresponding to each SSB is directly related to the number of UEs in the beam direction corresponding to the SSB, that is, the more the number of UEs in each beam direction is, the more the number of RO resources corresponding to the SSB in the beam direction is, the fewer the number of UEs in each beam direction is, and the fewer the number of RO resources corresponding to the SSB in the beam direction is.
Since the number of UEs is smaller in some beam directions of the cell, RO resources are also smaller. Similarly, in other beam directions, the number of UEs is relatively large, and thus RO resources are required relatively large. In the embodiment of the application, the number of RO resources corresponding to each SSB is directly related to the number of UE in the beam direction corresponding to the SSB, namely, fewer RO resources can be provided for the beam direction with fewer UE numbers, and more RO resources can be provided for the beam direction with more UE numbers. Therefore, the flexibility of mapping relation determination is improved, the utilization rate of RO resources is improved, and the requirement of random access is met. Moreover, the method provided by the embodiment of the application has the minimum modification to the existing 3GPP TS 38.331.
Referring to fig. 3, a cell may include n beam directions, and a base station may broadcast SSB1 to SSBn in the n beam directions for n SSBs, n being a positive integer. And, the cell may include m RO resources in total of RO1 resources to ROm resources, and m is a positive integer. Illustratively, n may be 8 and m may be 32.
The base station may broadcast the mapping relationship between the SSB and the RO resource through a system message in which the mapping relationship between the SSB and the RO is provided in a transmission period of the SSB. After the SSB is searched, the UE in each beam direction can interpret the system message, and thus can acquire the mapping relationship. And the UE can perform random access based on the mapping relation.
It should be noted that SSBi may correspond to 1/K i The RO resources, i is the index of SSB, and i is a positive integer less than or equal to n, K i Greater than 0. The total number of RO resources in the mapping relationship is equal to the preset total number of RO resources in the cell, namely, 1/K 1 +1/K 2 +1/K 3 +…+1/K n =m。
K i 1, indicating that SSBi corresponds to one RO resource, i.e. SSBi is one-to-one with RO resource, K i Greater than 0 and less than 1, indicating that SSBi corresponds to a plurality of RO resources, i.e., SSBi and RO resources are one-to-many, K i And the number of RO resources corresponding to the SSBi is smaller than 1 when the number of the RO resources is larger than 1.
The total number of RO resources occupied by a plurality of SSBs in a cell is equal to the preset total number of RO resources provided by the cell, so that enough RO resources are provided for a plurality of beam directions, a plurality of UE (user equipment) can be ensured to fully utilize the RO resources, and further collision can not occur when the plurality of UE are randomly accessed.
Specifically, referring to fig. 4, step S102 may include:
s201, determining the number of RO resources corresponding to the SSB according to the number of the UE in the beam direction corresponding to each SSB.
After the base station obtains the number of UEs in at least one beam direction, the number of RO resources corresponding to the SSB may be determined according to the number of UEs in the beam direction corresponding to each SSB.
Assuming that n is 8 and m is 32, the determined number of RO resources corresponding to SSB may be shown in table 1 based on the number of UEs in different beam directions. Referring to table 1, SSB2, SSB7, and SSB8 each correspond to 1/2 RO resources, SSB3 corresponds to 2 RO resources, SSB4 corresponds to 8 RO resources, SSB5 corresponds to 16 RO resources, and SSB6 corresponds to 4 RO resources. As can be seen from table 1, the UE centrally distributes the beam directions corresponding to SSB4 and SSB 5.
TABLE 1
S202, determining a mapping relation according to the number of RO resources corresponding to at least one SSB.
After determining the number of RO resources corresponding to SSBs according to the number of UEs in the beam direction corresponding to each SSB, the base station may determine a mapping relationship according to the number of RO resources corresponding to at least one SSB.
As one example, SSBs are plural, and step S202 may include: if the indexes of the plurality of target SSBs in the plurality of SSBs are continuous and the sum of the numbers of RO resources corresponding to the plurality of target SSBs is one, it may be determined that the plurality of target SSBs correspond to the same RO resource, that is, the plurality of target SSBs share the same RO resource.
The number of the RO resources corresponding to each target SSB is smaller than 1, and the RO resources corresponding to the same one of the target SSBs may be any one of m RO resources.
If the base station determines that the indexes are continuous and the corresponding target SSB with one sum of the number of RO resources is multiple groups, the RO resources corresponding to the different groups are different.
Referring to table 1 and fig. 5, the plurality of target SSBs may include SSB1 and SSB2 having consecutive indexes, and the sum of the numbers of RO resources corresponding to the SSB1 and SSB2 is one, so the base station may determine that the SSB1 and SSB2 correspond to the RO1 resource having the index 1. Wherein j in ROj resources represents an index of RO resources, and j is a positive integer less than or equal to m.
The plurality of target SSBs may further include SSB7 and SSB8 having consecutive indexes, and the sum of the numbers of RO resources corresponding to the SSB7 and SSB8 is one, so the base station may determine that the SSB7 and SSB8 correspond to RO32 resources having an index of 32.
In addition, since SSB1 and SSB2 are a plurality of target SSBs with consecutive indexes and one corresponding sum of RO resource numbers, SSB7 and SSB8 are a plurality of target SSBs with consecutive indexes and one corresponding sum of RO resource numbers. Therefore, the RO1 resources corresponding to SSB1 and SSB2 are different from the RO32 resources corresponding to SSB7 and SSB 8.
As a second example, the SSB is plural, and step S202 may include: if the indexes of the plurality of target SSBs in the plurality of SSBs are continuous and the sum of the numbers of RO resources corresponding to the plurality of target SSBs is one, it may be determined that at least two target SSBs in the plurality of target SSBs correspond to different RO resources.
Alternatively, the at least two target SSBs may include a first target SSB and a second target SSB, where a beam direction corresponding to the first target SSB is adjacent to a beam direction corresponding to the second target SSB. That is, two target SSBs adjacent to each other in the beam direction in the at least two target SSBs may correspond to different RO resources.
The target SSB in the two adjacent beam directions corresponds to different RO resources, so that the problem that the UE in the two adjacent beam directions randomly accesses the same RO resources to generate conflict can be avoided.
Referring to table 1, the plurality of target SSBs may include SSB1 and SSB2 having consecutive indexes, and the sum of the numbers of RO resources corresponding to the SSB1 and SSB2 is one, so the base station may determine that SSB1 corresponds to RO1 resources, and determine that SSB2 corresponds to RO32 resources having an index of 32.
The plurality of target SSBs may further include SSB7 and SSB8 having consecutive indexes, and the sum of the numbers of RO resources corresponding to the SSB7 and SSB8 is one, so the base station may determine that SSB7 corresponds to RO1 resource and SSB8 corresponds to RO32 resource. The SSB1 and SSB7 share RO1 resources, and the SSB2 and SSB8 share RO32 resources.
Assuming that SSB1, SSB2, and SSB3 each correspond to 1/3 RO resources, the plurality of target SSBs may include SSB1, SSB2, and SSB3 having consecutive indexes, the sum of the numbers of RO resources corresponding to SSB1, SSB2, and SSB3 is one, the beam direction corresponding to SSB1 is adjacent to the beam direction corresponding to SSB2, and the beam direction corresponding to SSB2 is adjacent to the beam direction corresponding to SSB 3. The base station may thus determine that SSB1 and SSB2 correspond to different RO resources, SSB2 and SSB3 correspond to different RO resources, e.g., SSB1 and SSB3 correspond to RO1 resources, SSB2 corresponds to RO2 resources.
As an example, step S202 may further include: if the number of RO resources corresponding to one SSB in the plurality of SSBs is a plurality of, the plurality of RO resources corresponding to the one SSB can be determined. The indexes of the RO resources corresponding to one SSB may be continuous, or may be partially continuous, or may be discontinuous, which is not limited in the embodiment of the present application.
Referring to table 1 and fig. 5, one SSB includes SSB3 and the number of RO resources corresponding to the SSB3 is 2, so the base station can determine that SSB3 corresponds to RO2 resources with index 1 and RO3 resources with index 3.
In SSB and RO resource mapping, each SSB has mapped RO resources and all RO resources have corresponding SSBs.
The base station may update the mapping relationship if the number of UEs in any one of the plurality of determined beam directions changes. Or the base station may update the mapping relation periodically. Thus, the accuracy of the mapping relationship is ensured by updating the mapping relationship.
In the embodiment of the application, the base station broadcasts the mapping relation between the SSB and the RO resources through the system message, and can be expressed as follows by using ASN.1 (Abstract Syntax Notation One, abstract syntax notation):
ssb_perRACH_Occasion_xx SEQUENCE (SIZE(1..maxNrofCandidateBeams)) ssb_perRACH_OccasionAndCB_PreamblesPerSSB。
where maxNrofCandidateBeams represents the maximum number of cell beams, ssb_perrach_occidionandbjpreableperssb represents the RO resources corresponding to each SSB and the number of preambles that each SSB can use, refer specifically to the definition in the 5G Radio Resource Control (RRC) protocol specification 3gpp ts 38.331. The mapping method can finish different SSB mapping of different RO resource numbers, and meanwhile, the modification to the existing 3GPP TS38.331 is minimum.
According to the method provided by the application, the mapping relation between the SSB and the RO resources is broadcasted through a system message, and the definition ssb_perRACH_Occasion_xx is increased corresponding to ASN.1 in 3GPP TS 38.331.
Wherein maxNrofCandidateBeams is the maximum number of SSBs, i.e., n;
for details of ssb_perrach_occidionandbjpreablessessb, refer to the description of 3gpp ts 38.331.
ssb_perRACH_Occasion_xx SEQUENCE (SIZE(1..maxNrofCandidateBeams)) ssb_perRACH_OccasionAndCB_PreamblesPerSSB
ssb_perRACH_OccasionAndCB_PreamblesPerSSBCHOICE {
oneEighthENUMERATED {n4,n8,n12,n16,n20,n24,n28,n32,n36,n40,n44,n48,n52,n56,n60,n64},
oneFourth ENUMERATED {n4,n8,n12,n16,n20,n24,n28,n32,n36,n40,n44,n48,n52,n56,n60,n64},
oneHalfENUMERATED {n4,n8,n12,n16,n20,n24,n28,n32,n36,n40,n44,n48,n52,n56,n60,n64},
oneENUMERATED {n4,n8,n12,n16,n20,n24,n28,n32,n36,n40,n44,n48,n52,n56,n60,n64},
twoENUMERATED
{n4,n8,n12,n16,n20,n24,n28,n32},
fourINTEGER (1..16),
eightINTEGER (1..8),
sixteenINTEGER (1..4)
}
In summary, according to the mapping relation determining method of the embodiment of the present application, the base station may determine the mapping relation between the SSB and the RO resources according to the number of UEs in at least one beam direction, so as to improve the flexibility of determining the mapping relation, and since the number of RO resources corresponding to each SSB is directly related to the number of UEs in the beam direction corresponding to the SSB, fewer RO resources can be provided for the beam directions with fewer UEs, more RO resources can be provided for the beam directions with more UEs, and the utilization rate of RO resources is improved.
The present application also provides a computer-readable storage medium having stored thereon a mapping relation determination program that when executed by a processor implements the above-described mapping relation determination method.
The computer readable storage medium of the embodiment of the application can improve the utilization rate of RO resources and the flexibility of mapping relation determination when the mapping relation determination program stored on the computer readable storage medium is executed by a processor.
The application also provides a base station, which comprises a memory, a processor and a mapping relation determining program which is stored in the memory and can run on the processor, wherein the mapping relation determining method is realized when the processor executes the mapping relation determining program.
When the mapping relation determining program stored in the memory of the base station of the embodiment of the application is executed by the processor, the utilization rate of RO resources can be improved, and the flexibility of mapping relation determination can be improved.
Fig. 6 is a schematic structural diagram of a mapping relation determining apparatus according to an embodiment of the present application. As shown in fig. 6, the mapping relation determining apparatus 100 includes: an acquisition module 10 and a mapping relation determination module 20.
The acquiring module 10 is configured to acquire the number of UEs in at least one beam direction in a cell; a mapping relationship determining module 20, configured to determine a mapping relationship between SSB and RO resources according to the number of UEs in at least one beam direction;
in this example, at least one beam direction corresponds to at least one SSB one-to-one, and the number of RO resources corresponding to each SSB is directly related to the number of UEs in the beam direction corresponding to the SSB. The total number of RO resources in the mapping relation is equal to the preset total number of RO resources in the cell.
Referring to fig. 7, the mapping relation determining module 20 may include: a first determining submodule 21, configured to determine the number of RO resources corresponding to SSBs according to the number of UEs in the beam direction corresponding to each SSB; and the second determining submodule 22 is used for determining a mapping relation according to the number of RO resources corresponding to at least one SSB.
As a first example, SSBs are plural, and the second determination submodule 22 is configured to: if indexes of a plurality of target SSBs in the plurality of SSBs are continuous and the sum of the numbers of the RO resources corresponding to the plurality of target SSBs is one, determining that the plurality of target SSBs correspond to the same RO resource.
As a second example, SSBs are plural, and the second determination submodule 22 is configured to: if indexes of a plurality of target SSBs in the plurality of SSBs are continuous and the sum of the numbers of RO resources corresponding to the plurality of target SSBs is one, determining that at least two target SSBs in the plurality of target SSBs correspond to different RO resources. The at least two target SSBs include a first target SSB and a second target SSB, and a beam direction corresponding to the first target SSB is adjacent to a beam direction corresponding to the second target SSB.
As an example, the second determination submodule 22 is further configured to: and if the number of the RO resources corresponding to one SSB is multiple, determining that one SSB corresponds to multiple RO resources.
Referring to fig. 7, the mapping relation determining apparatus 100 may further include: and an updating module 30, configured to update the mapping relationship if the number of UEs in any one of the at least one beam direction changes.
In other embodiments of the mapping relation determining apparatus 100 of the present application, reference may be made to the above-described mapping relation determining method.
In summary, the mapping relationship determining apparatus 100 in the embodiment of the present application determines, according to the number of UEs in at least one beam direction, the mapping relationship between SSB and RO resources, so as to improve the flexibility of determining the mapping relationship, and since the number of RO resources corresponding to each SSB is directly related to the number of UEs in the beam direction corresponding to the SSB, fewer RO resources can be provided for the beam direction with fewer UEs, more RO resources can be provided for the beam direction with more UEs, and the utilization rate of RO resources is improved.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, for example, may be considered as a ordered listing of executable instructions for implementing logical functions, and may be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, as used in embodiments of the present application, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying any particular number of features in the present embodiment. Thus, a feature of an embodiment of the application that is defined by terms such as "first," "second," etc., may explicitly or implicitly indicate that at least one such feature is included in the embodiment. In the description of the present application, the word "plurality" means at least two or more, for example, two, three, four, etc., unless explicitly defined otherwise in the embodiments.
In the present application, unless explicitly stated or limited otherwise in the examples, the terms "mounted," "connected," and "fixed" as used in the examples should be interpreted broadly, e.g., the connection may be a fixed connection, may be a removable connection, or may be integral, and it may be understood that the connection may also be a mechanical connection, an electrical connection, etc.; of course, it may be directly connected, or indirectly connected through an intermediate medium, or may be in communication with each other, or in interaction with each other. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific embodiments.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (8)

1. A mapping relation determining method, characterized in that the method comprises:
acquiring the number of User Equipment (UE) in at least one beam direction in a cell;
determining a mapping relation between the synchronous signal block SSB and the random access opportunity RO resource according to the number of the UE in at least one beam direction;
wherein, at least one beam direction corresponds to at least one SSB one by one, and the number of RO resources corresponding to each SSB is positively related to the number of UE in the beam direction corresponding to the SSB;
the total number of RO resources in the mapping relation is equal to the preset total number of RO resources in the cell;
the determining the mapping relationship between the SSB and the RO resources according to the number of UEs in at least one beam direction includes:
determining the number of RO resources corresponding to the SSB according to the number of the UE in the beam direction corresponding to each SSB;
the number of the SSBs is multiple, and if indexes of a plurality of target SSBs in the SSBs are continuous and the sum of the numbers of RO resources corresponding to the target SSBs is one, determining that at least two target SSBs in the target SSBs correspond to different RO resources;
the at least two target SSBs include a first target SSB and a second target SSB, and a beam direction corresponding to the first target SSB is adjacent to a beam direction corresponding to the second target SSB.
2. The mapping relationship determining method according to claim 1, wherein the determining the mapping relationship according to the number of RO resources corresponding to at least one SSB further includes:
and if the number of the RO resources corresponding to one SSB in the SSB is a plurality of SSBs, determining that one SSB corresponds to the plurality of RO resources.
3. The mapping relationship determination method according to claim 1, characterized in that the method further comprises:
and if the number of the UE in any one of the at least one beam direction is changed, updating the mapping relation.
4. A computer-readable storage medium, characterized in that a map determination program is stored thereon, which when executed by a processor, implements the map determination method according to any one of claims 1 to 3.
5. A base station comprising a memory, a processor and a mapping relation determining program stored on the memory and executable on the processor, wherein the processor implements the mapping relation determining method according to any one of claims 1 to 3 when executing the mapping relation determining program.
6. A mapping relation determining apparatus, characterized in that the apparatus comprises:
an acquisition module, configured to acquire the number of UEs in at least one beam direction in a cell;
the mapping relation determining module is used for determining the mapping relation between the SSB and the RO resources according to the number of the UE in at least one beam direction;
wherein, at least one beam direction corresponds to at least one SSB one by one, and the number of RO resources corresponding to each SSB is positively related to the number of UE in the beam direction corresponding to the SSB;
the total number of RO resources in the mapping relation is equal to the preset total number of RO resources in the cell;
the mapping relation determining module comprises:
a first determining submodule, configured to determine, according to the number of UEs in the beam direction corresponding to each SSB, the number of RO resources corresponding to the SSB;
the second determining submodule is used for determining the mapping relation according to the number of RO resources corresponding to at least one SSB;
the SSB is a plurality of, and the second determining submodule is configured to:
if indexes of a plurality of target SSBs in the SSBs are continuous and the sum of the numbers of RO resources corresponding to the target SSBs is one, determining that at least two target SSBs in the target SSBs correspond to different RO resources;
the at least two target SSBs include a first target SSB and a second target SSB, and a beam direction corresponding to the first target SSB is adjacent to a beam direction corresponding to the second target SSB.
7. The mapping determination apparatus of claim 6, wherein the second determination submodule is further configured to:
and if the number of the RO resources corresponding to one SSB is multiple, determining that one SSB corresponds to multiple RO resources.
8. The mapping relationship determination apparatus according to claim 6, characterized in that the apparatus further comprises:
and the updating module is used for updating the mapping relation if the number of the UE in any one of the at least one beam direction changes.
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CN113038586A (en) * 2019-12-25 2021-06-25 上海大唐移动通信设备有限公司 Configuration method of synchronous signal block and electronic equipment
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