CN115643563A - Random access response resource configuration method, base station and storage medium - Google Patents
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Abstract
The present disclosure relates to a random access response resource configuration method, a base station, and a storage medium. The random access response resource configuration method comprises the following steps: the base station individually configures random access response resources for the low-capability terminal, wherein the random access response resources comprise a random access response window length and random access response authorization content. The performance of the RedCap terminal Msg2 can be improved.
Description
Technical Field
The present disclosure relates to the field of wireless communications technologies, and in particular, to a random access response resource configuration method, a base station, and a storage medium.
Background
In the 3GPP Rel-17 stage, related research on RedCap (Reduced Capability NR Devices, low-Capability new air interface terminals, abbreviated as low-Capability terminals) is being carried out. Compared with a common terminal, a red beacon terminal has lower requirements on indexes such as transmission rate and time delay, and has weaker terminal capability, including aspects such as bandwidth, number of antennas, number of downlink MIMO (multiple input multiple output) streams, modulation order, duplex mode, and the like.
In the initial Random Access process, after sending a preamble Msg1 (message 1, first message) message, the terminal monitors a Random Access Response (RAR) sent by the base station, that is, an Msg2 message, within a corresponding time window.
Disclosure of Invention
The inventor finds out through research that: because the capability of the RedCap terminal is weakened and diversified delay requirements are met, if RAR configuration of common users in the related technology is continuously multiplexed, the Msg2 performance of the RedCap terminal can be reduced, and meanwhile, the communication service quality of deployed common terminals is influenced.
In view of at least one of the above technical problems, the present disclosure provides a random access response resource configuration method, a base station, and a storage medium, which can improve performance of a red beacon terminal Msg 2.
According to an aspect of the present disclosure, there is provided a random access response resource configuration method, including:
the base station individually configures random access response resources for the low-capability terminal, wherein the random access response resources comprise a random access response window length and random access response authorization content.
In some embodiments of the present disclosure, the base station individually configuring the random access response message for the low-capability terminal includes:
independently configuring the length of a random access response window for the low-energy terminal;
and independently configuring random access response authorization content for the low-capability terminal, and dynamically adjusting the indicated bit number.
In some embodiments of the present disclosure, the individually configuring the random access response window length for the low-capability terminal includes:
and configuring a new low-capability terminal random access response window field in the general configuration parameters of the random access channel, wherein the new low-capability terminal random access response window field is used for configuring the length of a random access response window for the low-capability terminal.
In some embodiments of the present disclosure, the low-capability terminal has a random access response window length of any one of 60,100,120,140,160, and 200.
In some embodiments of the disclosure, configuring the random access response window length for the low-capability terminal includes:
and configuring corresponding random access response window lengths for the different types of low-power terminals according to different requirements of the different types of low-power terminals on time delay.
In some embodiments of the disclosure, the random access response authorization content includes:
allocating frequency domain resources of a physical uplink shared channel, wherein the frequency domain resources are represented by 12-14 bits;
modulation and coding strategy level, 3 to 5 bits.
In some embodiments of the disclosure, the random access response authorization content includes:
for shared spectrum channel frequency domain resource allocation, 10 to 12 bits represent.
According to another aspect of the present disclosure, there is provided a base station, comprising:
and the random access response resource configuration module is used for individually configuring random access response resources aiming at the low-capability terminal, wherein the random access response resources comprise the length of a random access response window and random access response authorization content.
In some embodiments of the present disclosure, the base station is configured to perform an operation for implementing the random access response resource configuration method as in any of the above embodiments.
According to another aspect of the present disclosure, there is provided a base station, comprising:
a memory to store instructions;
a processor configured to execute the instructions to cause the base station to perform operations for implementing the random access response resource configuration method according to any of the above embodiments.
According to another aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, wherein the non-transitory computer-readable storage medium stores computer instructions, which when executed by a processor, implement the random access response resource configuration method according to any of the above embodiments.
The performance of the RedCap terminal Msg2 can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of some embodiments of a random access response resource configuration method according to the present disclosure.
Fig. 2 is a schematic diagram of RAR window configuration in some embodiments of the present disclosure.
Fig. 3 is a schematic diagram of some embodiments of a base station of the present disclosure.
Fig. 4 is a schematic structural diagram of another embodiment of a base station according to the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The relative arrangement of parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The inventor finds out through research that: the RAR configuration supported by the current protocol of the related art includes:
a Random Access response window, which is configured with ra-ResponseWindow (Random Access Channel configuration Generic, a general configuration parameter of Random Access Channel, a high-level parameter) in RACH-ConfigGeneric (Random Access Channel configuration Generic, a high-level parameter), and indicates the time length of the RAR window, the unit is the number of time slots, and the value is {1,2,4,8,10,20,40,80}; specifically, for the R16 protocol version, ra-ResponseWindow-v1610 is added, with values including {60,160}.
The terminal detects DCI format 1_0 (Downlink Control Information of form 1) through a CRC (Cyclic Redundancy Check) scrambled by an RA-RNTI (Random Access Radio Network Temporary Identifier), thereby obtaining an RAR authorization content.
The content of RAR authorization may include:
PUSCH (Physical Uplink Shared Channel) frequency domain resource allocation, 14 bits. Specifically, for a shared spectrum channel, 12 bits represent.
PUSCH time domain resource allocation, 4 bits representation.
MCS (Modulation and Coding Scheme) level, 4 bits.
Other parameters are omitted.
Because the capability of the RedCap terminal is weakened and diversified delay requirements are met, if RAR configuration of common users in the related technology is continuously multiplexed, the Msg2 performance of the RedCap terminal can be reduced, and meanwhile, the communication service quality of deployed common terminals is influenced.
In view of at least one of the above technical problems, the present disclosure provides a random access response resource configuration method, a base station, and a storage medium, and the present disclosure is described below with specific embodiments.
Fig. 1 is a schematic diagram of some embodiments of a random access response resource configuration method according to the present disclosure. Preferably, this embodiment can be performed by a base station (e.g., a 5G base station gNB) of the present disclosure. The method of the embodiment of fig. 1 may comprise at least one of the following steps, wherein:
In some embodiments of the present disclosure, step 10 may comprise: and independently configuring RAR for the RedCap terminal, wherein the RAR comprises RAR window length, time-frequency resource configuration in RAR authorization content, MCS level and the like.
In some embodiments of the present disclosure, step 10 may include at least one of steps 11 and 12, wherein:
and 11, independently configuring the length of a random access response window for the low-power terminal.
In some embodiments of the present disclosure, step 11 may comprise: and configuring a random access response window field ra-ResponseWindow-RedCap of the newly-added low-capability terminal in a random access channel general configuration parameter RACH-ConfigGeneric, wherein the field ra-responseWindow-RedCap is specially used for configuring the length of the random access response window for the low-capability terminal.
In some embodiments of the disclosure, the range of values of the RAR window length configured for a red map terminal may be {60,100,120,140,160,200}.
In some embodiments of the present disclosure, the random access response window length of the low-power terminal may be any one of 60,100,120,140,160, and 200.
In some embodiments of the present disclosure, step 11 may comprise: and configuring corresponding random access response window lengths for the different types of low-power terminals according to different requirements of the different types of low-power terminals on time delay.
In some embodiments of the present disclosure, step 11 may comprise: the random access response window length of the recap terminal may be the same as or different from that of the normal terminal according to the actual needs of the recap terminal.
Fig. 2 is a schematic diagram of RAR window configuration in some embodiments of the present disclosure. As shown in fig. 2, the sizes of the RAR windows of the red beacon terminal 1 and the normal terminal are the same, the length of the RAR window of the red beacon terminal 2 is smaller than that of the normal terminal, and the length of the RAR window of the red beacon terminal 3 is larger than that of the normal terminal, so that specific requirements of different types of the red beacon terminals on time delay are met.
And step 12, configuring random access response authorization content for the low-energy terminal independently, and dynamically adjusting the indicated bit number.
In some embodiments of the present disclosure, the random access response authorization content in step 12 may include:
the first, physical uplink shared channel frequency domain resource allocation, 12 to 14 bits.
In some embodiments of the present disclosure, the physical uplink shared channel frequency domain resource allocation may include: for shared spectrum channel frequency domain resource allocation, 10 to 12 bits represent.
In some embodiments of the present disclosure, for a red cap terminal, the frequency range FR1 supports 20MHz maximum and the frequency range FR2 supports 100MHz maximum. Compared with a common terminal, the bandwidth is reduced, so the bit number for indicating the PUSCH frequency domain resource can be correspondingly reduced, and the overhead is saved.
Second, modulation and coding strategy level, 3 to 5 bits.
For a normal terminal, a range of MCS level of 0 to 31,5 bits is sufficient for representation. Considering the actual requirement of the RedCap terminal, part of MCS levels may not be used, so the number of bits for indicating the MCS level can be reduced, and only 3 to 5 bits are needed.
Based on the random access response resource configuration method provided by the embodiment of the disclosure, the method is a method for improving the performance of the red beacon terminal Msg2, the length of a random access response RAR window is configured for the red beacon terminal independently, the bit numbers of time-frequency resources and MCS levels in the RAR authorization content are dynamically adjusted and indicated, the resource overhead is reduced, the actual requirements of the red beacon terminal are met, meanwhile, the influence on the communication service quality of the deployed common terminal can be reduced, and the system performance is further improved.
Fig. 3 is a schematic diagram of some embodiments of a base station of the present disclosure. As shown in fig. 3, the base station 30 of the present disclosure may include a random access response resource configuration module 31, where:
a random access response resource configuring module 31, configured to configure a random access response resource separately for a low-capability terminal, where the random access response resource includes a random access response window length and a random access response authorization content.
In some embodiments of the present disclosure, the random access response resource configuration module 31 may be configured to configure the random access response window length for low-power terminals individually; and independently configuring random access response authorization content for the low-capability terminal, and dynamically adjusting the indicated bit number.
In some embodiments of the present disclosure, the random access response resource configuring module 31, in a case of configuring the length of the random access response window for the low-capability terminal alone, may be configured to configure a random access response window field of a newly added low-capability terminal in the random access channel general configuration parameter, and is configured to configure the length of the random access response window for the low-capability terminal.
In some embodiments of the present disclosure, to improve the performance of the RedCap terminal Msg2, the random access response resource configuration module 31 adds a new field ra-ResponseWindow-RedCap in the RACH-ConfigGeneric, and configures an RAR window length specifically for the RedCap terminal. The RAR window length of the recmap terminal may be the same as or different from that of the normal terminal, according to the actual needs of the recmap terminal.
In some embodiments of the present disclosure, the random access response window length of the low-power terminal may be any one of 60,100,120,140,160, and 200.
In some embodiments of the present disclosure, the random access response resource configuring module 31 may be configured to configure, according to different requirements of different types of low-power terminals on time delay, corresponding random access response window lengths for the different types of low-power terminals, under the condition that the random access response window lengths are configured for the low-power terminals separately.
In some embodiments of the present disclosure, the random access response authorization content may include: allocating frequency domain resources of a physical uplink shared channel, wherein the frequency domain resources are represented by 12-14 bits; modulation and coding strategy level, 3 to 5 bits.
In some embodiments of the present disclosure, the allocating the frequency domain resource of the physical uplink shared channel in the random access response grant content may include: for shared spectrum channel frequency domain resource allocation, 10 to 12 bits represent.
In some embodiments of the present disclosure, the base station is configured to perform operations for implementing the random access response resource configuration method according to any of the above embodiments (for example, the embodiments of fig. 1 or fig. 2).
Based on the base station provided by the above embodiment of the present disclosure, the performance of the red map terminal Msg2 can be improved, the actual demand of the red map terminal is met, and meanwhile, the influence on the communication service quality of the deployed common terminal is reduced, so that the network performance is improved.
The above embodiments of the present disclosure support separate configuration of RAR resources for a red map terminal.
Fig. 4 is a schematic structural diagram of another embodiment of a base station according to the present disclosure. As shown in fig. 4, the base station includes a memory 41 and a processor 42.
The memory 41 is used for storing instructions, the processor 42 is coupled to the memory 41, and the processor 42 is configured to execute the method for implementing the random access response resource configuration according to any of the embodiments (for example, the embodiments of fig. 1 or fig. 4) described above based on the instructions stored in the memory.
As shown in fig. 4, the base station further comprises a communication interface 43 for information interaction with other devices. Meanwhile, the base station further comprises a bus 44, and the processor 42, the communication interface 43 and the memory 41 are communicated with each other through the bus 44.
The memory 41 may comprise a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 41 may also be a memory array. The storage 41 may also be partitioned, and the blocks may be combined into virtual volumes according to certain rules.
Further, the processor 42 may be a central processing unit CPU, or may be an application specific integrated circuit ASIC, or one or more integrated circuits configured to implement embodiments of the present disclosure.
Based on the base station provided by the above embodiment of the present disclosure, the performance of the red beacon terminal Msg2 can be improved, by configuring the length of the random access response RAR window for the red beacon terminal alone, the number of bits of time-frequency resources and MCS levels in the RAR authorization content is dynamically adjusted and indicated, the resource overhead is reduced, the actual demand of the red beacon terminal is met, meanwhile, the influence on the communication service quality of deployed common terminals can be reduced, and the system performance is further improved.
The above embodiments of the present disclosure relate to the field of wireless communication technologies, and in particular, to 5G standardization.
According to another aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, wherein the non-transitory computer-readable storage medium stores computer instructions, which when executed by a processor, implement the random access response resource configuration method according to any one of the above embodiments (for example, the embodiments of fig. 1 or fig. 2).
Based on the non-transitory computer-readable storage medium provided by the above embodiment of the present disclosure, the performance of the red beacon terminal Msg2 can be improved, the bit numbers of time-frequency resources and MCS levels in the RAR authorization content are dynamically adjusted by separately configuring the length of the random access response RAR window for the red beacon terminal, so that the resource overhead is reduced, the actual requirements of the red beacon terminal are met, the influence on the communication service quality of the deployed common terminal can be reduced, and the system performance is further improved.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The base stations described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any suitable combination thereof, for performing the functions described herein.
Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware to implement the steps.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (11)
1. A method for configuring random access response resources is characterized by comprising the following steps:
the base station individually configures random access response resources for the low-capability terminal, wherein the random access response resources comprise the length of a random access response window and random access response authorization content.
2. The method of claim 1, wherein the base station individually configuring the random access response message for the low-capability terminal comprises:
configuring the length of a random access response window for the low-power terminal;
and configuring random access response authorization content for the low-capability terminal independently, and dynamically adjusting the indicated bit number.
3. The method according to claim 2, wherein the individually configuring the length of the random access response window for the low-capability terminal comprises:
and configuring a new low-capability terminal random access response window field in the general configuration parameters of the random access channel, wherein the new low-capability terminal random access response window field is used for configuring the length of a random access response window for the low-capability terminal.
4. The method of claim 3, wherein the length of the random access response window of the low-capability terminal is any one of 60,100,120,140,160 and 200.
5. The method according to claim 3, wherein the configuring the random access response window length for the low-capability terminal comprises:
and configuring corresponding random access response window lengths for the different types of low-power terminals according to different requirements of the different types of low-power terminals on time delay.
6. The method according to any of claims 2-5, wherein the random access response authorization content comprises:
allocating physical uplink shared channel frequency domain resources, wherein 12 to 14 bits represent the physical uplink shared channel frequency domain resources;
modulation and coding strategy level, 3 to 5 bits.
7. The method of claim 6, wherein the random access response authorization content comprises:
for shared spectrum channel frequency domain resource allocation, 10 to 12 bits represent.
8. A base station, comprising:
and the random access response resource configuration module is used for individually configuring random access response resources aiming at the low-capability terminal, wherein the random access response resources comprise the length of a random access response window and random access response authorization content.
9. The base station of claim 8, wherein the base station is configured to perform the operation of implementing the random access response resource configuration method according to any one of claims 1 to 7.
10. A base station, comprising:
a memory to store instructions;
a processor configured to execute the instructions to cause the base station to perform operations to implement the random access response resource configuration method of any of claims 1-7.
11. A non-transitory computer readable storage medium storing computer instructions which, when executed by a processor, implement the random access response resource configuration method of any one of claims 1-7.
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