CN111212448A

CN111212448A - BWP self-adaptive selection modulation method and system

Info

Publication number: CN111212448A
Application number: CN201811392038.2A
Authority: CN
Inventors: 李言兵; 刘毅; 刘立洋; 吴德胜
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Shandong Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Shandong Co Ltd
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2020-05-29
Anticipated expiration: 2038-11-21
Also published as: CN111212448B

Abstract

The embodiment of the invention provides a BWP adaptive selection modulation method and a system, wherein the method comprises the following steps: configuring a plurality of special BWPs when the user equipment is in a radio resource control connected state, and selecting one of the special BWPs as a default BWP; judging whether the UE has the bandwidth self-adaptive adjustment capability or not according to the type of the UE; if the UE is judged to have the bandwidth self-adaptive adjustment capability, acquiring a target BWP according to the service type of the UE, the service bandwidth requirement of the UE, the channel environment change and the default BWP, and taking the target BWP as the bandwidth for the UE to carry out service transmission. The embodiment of the invention dynamically adjusts the bandwidth of the UE for service transmission by combining the type of the UE service, the bandwidth requirement of the UE service and the actual situation of the channel environment change, thereby effectively improving the utilization rate of 5G frequency resources.

Description

BWP self-adaptive selection modulation method and system

Technical Field

The embodiment of the invention relates to the technical field of mobile communication, in particular to a BWP adaptive selection modulation method and a BWP adaptive selection modulation system.

Background

Independent deployment in 5G networks is also the ultimate goal of 5G deployment. The bandwidth of 5G can be 5MHz at minimum and 400MHz at maximum. If all the terminal UEs are required to support the maximum 400MHz, higher requirements are undoubtedly put forward on the performance of the UE, which is not favorable for the good experience of the 5G user.

Bandwidth fragmentation (BWP for short) introduced by the 5G system makes the Bandwidth flexible and variable, and a UE cannot occupy the whole 400M Bandwidth at the same time, and if the UE adopts a sampling rate corresponding to the 400M Bandwidth, it is undoubtedly a waste of resources, and whether the 5G frequency resources can be reasonably utilized, which is a problem to be solved by the BWP adaptive selection adjustment method.

Disclosure of Invention

Embodiments of the present invention provide a BWP adaptive selective modulation method and system, so as to solve the problem of unreasonable utilization of 5G frequency resources in the prior art.

In a first aspect, an embodiment of the present invention provides a BWP adaptive selective modulation method, including:

when User Equipment (User Equipment, abbreviated as UE) is in a Radio Resource Control (RRC) connected state, configuring a plurality of dedicated BWPs, and selecting one of the plurality of dedicated BWPs as a default BWP;

judging whether the UE has the bandwidth self-adaptive adjustment capability or not according to the type of the UE;

if the UE is judged to have the bandwidth self-adaptive adjustment capability, acquiring a target BWP according to the service type of the UE, the service bandwidth requirement of the UE, the channel environment change and the default BWP, and taking the target BWP as the bandwidth for the UE to carry out service transmission.

In a second aspect, an embodiment of the present invention provides a BWP adaptive selective modulation system, including:

a configuration module, configured to configure a plurality of dedicated BWPs when a User Equipment (UE) is in a Radio Resource Control (RRC) connected state, and select one of the dedicated BWPs as a default BWP;

the judging module is used for judging whether the UE has the bandwidth self-adaptive adjustment capability according to the type of the UE;

and the adjusting module is used for acquiring a target BWP according to the service type of the UE, the service bandwidth requirement of the UE, the channel environment change and the default BWP if the UE is judged to have the bandwidth self-adaptive adjusting capability, and taking the target BWP as the bandwidth for the UE to carry out service transmission.

In a third aspect, an embodiment of the present invention provides an electronic device, including:

at least one processor, at least one memory, a communication interface, and a bus; wherein the content of the first and second substances,

the processor, the memory and the communication interface complete mutual communication through the bus;

the communication interface is used for information transmission between the test equipment and the communication equipment of the display device;

the memory stores program instructions executable by the processor, and the processor calls the program instructions to be able to execute a BWP adaptive selective modulation method provided by the first aspect.

In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, which stores computer instructions, where the computer instructions cause the computer to execute a BWP adaptive modulation selection method provided in the first aspect.

The BWP adaptive selection modulation method and system provided by the embodiment of the invention dynamically adjust the bandwidth of service transmission of the UE by combining the actual conditions of the UE service type, the UE service bandwidth requirement and the channel environment change, thereby effectively improving the utilization rate of 5G frequency resources.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a flowchart illustrating a BWP adaptive modulation selection method according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a BWP adaptive selective modulation system according to an embodiment of the present invention;

fig. 3 illustrates a physical structure diagram of an electronic device.

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 some, but not all, embodiments of the present invention. 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.

Fig. 1 is a flowchart of a BWP adaptive selective modulation method according to an embodiment of the present invention, as shown in fig. 1, the method includes:

s1, when a User Equipment (UE) is in a Radio Resource Control (RRC) connected state, configuring a plurality of dedicated BWPs, and selecting one of the dedicated BWPs as a default BWP;

s2, judging whether the UE has the bandwidth self-adaptive adjustment capability according to the type of the UE;

and S3, if the UE is judged and known to have the bandwidth self-adaptive adjustment capability, acquiring a target BWP according to the service type of the UE, the service bandwidth requirement of the UE, the channel environment change and the default BWP, and taking the target BWP as the bandwidth of the UE for service transmission.

When the ue is in the rrc connected state, several dedicated BWPs are configured, where a dedicated BWP is a bandwidth that can be selected by the ue during service transmission, and generally, in a 5G signaling system, there are four dedicated BWPs, and one of the 4 dedicated BWPs is selected as a default BWP, where the default BWP is the default BWP selected as the signaling bandwidth.

Then, according to the type of the UE, it is determined whether the UE has a bandwidth adaptive adjustment capability, specifically, the type of the UE is determined according to the UE capability reported by the user, the UE capability is determined by its own hardware structure and software, there are 10 types of current LTE UEs, and when the user accesses the network, the user needs to tell the capability of the core network own terminal, so that the core network performs adaptive scheduling.

In the embodiment of the present invention, the types of the UE are divided into a narrowband UE, a wideband UE, a UE with carrier aggregation capability, and a UE with bandwidth adaptation capability, where the narrowband UE refers to a partial bandwidth that can only use one NR carrier, the bandwidth UE refers to an available entire system bandwidth, and the UE with carrier aggregation capability refers to an available partial or entire system bandwidth, but the flexibility of bandwidth usage is low, and the UE with bandwidth adaptation capability may only detect and use a bandwidth that is smaller than its radio frequency capability, and may support flexible and variable bandwidth (BP is variable).

And determining the type of the UE according to the UE capability reported by the user, marking the type, and judging whether the UE has the BWP self-adaptive capability or not according to the type of the UE. Different UEs may configure different BWPs; all channel resource configurations of the UE are allocated and scheduled within BWP.

It can be seen that the UE has the bandwidth adaptive adjustment capability only when the type of the UE is the UE with the bandwidth adaptive capability.

And when the UE is judged to have the bandwidth self-adaptive adjustment capability, obtaining a target BWP according to the service type of the UE, the service bandwidth requirement of the UE, the channel environment change and the previously obtained default BWP, wherein the target BWP is the bandwidth of the UE for finally carrying out service transmission.

The BWP adaptive selection modulation method provided by the embodiment of the invention dynamically adjusts the bandwidth of the UE for service transmission by combining the actual conditions of the UE service type, the UE service bandwidth requirement and the channel environment change, thereby effectively improving the utilization rate of 5G frequency resources.

On the basis of the above embodiment, it is preferable to further include: and if the UE is judged to be not provided with the bandwidth self-adaptive adjustment capability, taking the default BWP as the target BWP.

When the type of the UE belongs to the other three types, the UE does not have the bandwidth adaptive adjustment capability, and can only select a fixed bandwidth when performing service transmission, that is, directly use the default BWP as the target BWP.

On the basis of the foregoing embodiment, preferably, the acquiring a target BWP according to a service type of the UE, a service bandwidth requirement of the UE, a channel environment change, and the default BWP specifically includes:

acquiring a preset BWP corresponding to the UE service type according to the service type of the UE;

if the matching degree of the preset BWP and the default BWP is higher than a first preset threshold, taking the preset BWP as the target BWP;

and if the preset BWP and the default BWP matching degree are smaller than a second preset threshold, taking the default BWP as the target BWP.

Specifically, after it is determined that the UE has the bandwidth adaptive adjustment capability, the service bandwidth of the UE needs to be adaptively adjusted according to three actual conditions, namely, the service type of the UE, the service bandwidth requirement of the UE, and the channel environment change.

Generally, the traffic classes of the UE are: the method includes the steps of eMBB (enhanced mobile broadband), mMTC (application scene of Internet of things), URLLC (ultra high reliability and ultra low latency communication) and the like, wherein the suitable bandwidths for different service types are different, namely each service type has a preset BWP, and the preset BWP means that the corresponding service type is suitable for transmission under the condition of the bandwidth.

Taking any one of the service types as an example, according to the service type, obtaining a corresponding preset BWP, if the matching degree of the preset BWP and the default BWP is higher than a first preset threshold, it is indicated that the default BWP is suitable for transmitting the current service, and the default BWP is taken as the target BWP for service transmission.

And if the matching degree of the preset BWP and the default BWP is lower than a first preset threshold, the default BWP is not suitable for transmitting the current service, and the preset BWP is taken as the target BWP for service transmission.

On the basis of the foregoing embodiment, preferably, the acquiring a target BWP according to a service type of the UE, a service bandwidth requirement of the UE, a channel environment change, and the default BWP further includes:

acquiring a required bandwidth according to the service bandwidth requirement of the UE;

if the matching degree of the required bandwidth and the default BWP is higher than a third preset threshold, taking the default BWP as the target BWP;

and if the matching degree of the required bandwidth and the default BWP is smaller than a fourth preset threshold, taking the required bandwidth as the target BWP.

The service bandwidth requirement can be understood as that different bandwidths are allocated according to different services, for example, when a user watches high-definition video, the VR needs a large bandwidth, and if only the WeChat character chat needs a small bandwidth, the VR needs a small bandwidth.

And obtaining the required bandwidth for transmitting the service according to the service bandwidth requirement of the UE.

If the degree of matching between the demanded bandwidth and the default BWP is higher than the third preset threshold, which indicates that the degree of matching between the demanded bandwidth and the default BWP is higher, the service may be transmitted using the default BWP, and the default BWP is used as the target BWP.

If the matching degree of the required bandwidth and the default BWP is lower than the fourth preset threshold, it indicates that the bandwidth range of the default BWP is far from the range of the required bandwidth, and the default BWP cannot be used for service transmission, and the required bandwidth is taken as the target BWP.

The UE is switched between the BWPs to achieve the effect of power saving. The UE available bandwidth is smaller than the carrier bandwidth: support narrow bandwidth capable UEs or save UE power consumption.

if the traffic of the UE is larger than a fifth preset threshold, increasing the value of the default BWP;

if the traffic of the UE is smaller than a sixth preset threshold, reducing the value of the default BWP;

and if the UE has wide-range frequency selective fading or is short of resources in the range of the default BWP, reselecting one of the special BWPs as the target BWP.

When the channel environment changes, such as changes of path loss, shadow fading (slow fading), multipath fading (fast fading), doppler spread (time selective fading), channel interference, etc., all affect the channel environment. It can be simply understood that a person becomes better pregnant for a while.

BWP adjustment is performed by obtaining uplink and downlink interference and signal fading degree conditions of UE channels, e.g.

At the first moment, the service volume of the UE is larger, the base station can identify the larger service volume, the UE can send a service request, the base station side can identify the size of the service volume according to the cache, the system configures a large bandwidth for the UE, and the value of the default BWP is increased.

At the second moment, the traffic of the UE is smaller, the system configures a small bandwidth for the UE, the basic communication requirement is met, and the value of the default BWP is reduced;

at the third moment, the system finds that there is wide frequency selective fading in the bandwidth of BWP1 or there is a shortage of resources in the frequency range of BWP1, so that the UE is configured with a new bandwidth and reselects one of several dedicated BWPs as the target BWP.

The embodiment of the invention provides a BWP self-adaptive selection adjustment method of a 5G system, which comprises the steps of judging the type of UE through the capability of reporting the UE by a user, initially distributing BWP, configuring special BWP by the UE in an RRC connection state, designating one of the special BWP as default BWP, comparing the bandwidth required by the user in different channel environments and service types with the default BWP, judging whether the special BWP is matched, judging whether a BWP adjustment mechanism is started according to the result, and further enabling the BWP self-adaptive selection to activate new default BWP; enabling a low bandwidth capability capable UE to operate in a large system bandwidth cell; the user terminal monitors or transmits the control channel with low power consumption, and can receive or transmit with large bandwidth in a data high transmission period; the user supports resource allocation of different parameter sets on different BWPs, and realizes adaptive selection of BWPs between different services; therefore, BWP self-adaptive selection adjustment is realized, the service requirement is adapted, BWP is dynamically configured for the service, and 5G user perception is effectively improved.

Fig. 2 is a schematic structural diagram of a BWP adaptive selective modulation system according to an embodiment of the present invention, as shown in fig. 2, the system includes: a configuration module 201, a judgment module 202 and an adjustment module 203, wherein:

the configuration module 201 is configured to configure a plurality of dedicated BWPs when a User Equipment (User Equipment, UE for short) is in a Radio Resource Control (RRC for short) connection state, and select one of the dedicated BWPs as a default BWP;

the judging module 202 is configured to judge whether the UE has a bandwidth adaptive adjustment capability according to the type of the UE;

the adjusting module 203 is configured to, if it is determined that the UE has the bandwidth adaptive adjustment capability, obtain a target BWP according to the service type of the UE, the service bandwidth requirement of the UE, the channel environment change, and the default BWP, and use the target BWP as a bandwidth for the UE to perform service transmission.

First, the configuration module 201 configures several dedicated BWPs when the UE is in the rrc connected state, and selects one of the dedicated BWPs as a default BWP.

The determining module 202 determines whether the UE has the bandwidth adaptive adjustment capability according to the type of the UE.

If the adjusting module 203 judges that the UE has the bandwidth adaptive adjustment capability, it acquires the target BWP according to the service type of the UE, the service bandwidth requirement of the UE, the channel environment change, and the default BWP, and uses the target BWP as the bandwidth for the UE to perform service transmission.

The BWP adaptive selection modulation system provided by the embodiment of the invention dynamically adjusts the bandwidth of the UE for service transmission by combining the actual conditions of the UE service type, the UE service bandwidth requirement and the channel environment change, thereby effectively improving the utilization rate of 5G frequency resources.

Fig. 3 illustrates a physical structure diagram of an electronic device, and as shown in fig. 3, the server may include: a processor (processor)310, a communication Interface (communication Interface)320, a memory (memory)330 and a bus 340, wherein the processor 310, the communication Interface 320 and the memory 330 complete communication with each other through the bus 340. The communication interface 340 may be used for information transmission between the server and the smart tv. The processor 310 may call logic instructions in the memory 330 to perform the following method:

In addition, the logic instructions in the memory 330 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the above method embodiments, for example, including:

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A BWP adaptive selective modulation method, comprising:

when User Equipment (User Equipment, abbreviated as UE) is in a Radio Resource Control (RRC) connected state, configuring a plurality of dedicated BWPs, and selecting one of the dedicated BWPs as a default BWP;

2. The method of claim 1, further comprising:

and if the UE is judged to be not provided with the bandwidth self-adaptive adjustment capability, taking the default BWP as the target BWP.

3. The method according to claim 1, wherein the obtaining the target BWP according to the UE service type, the UE service bandwidth requirement, the channel environment change, and the default BWP comprises:

4. The method of claim 2, wherein the obtaining the target BWP according to the UE traffic type, the UE traffic bandwidth requirement, the channel environment change and the default BWP further comprises:

5. The method of claim 1, wherein the obtaining the target BWP according to the UE traffic type, the UE traffic bandwidth requirement, the channel environment change and the default BWP further comprises:

and if the UE has wide-range frequency selective fading in the range of the default BWP, reselecting one of the special BWPs as the target BWP.

6. The method of claim 1, wherein the type of the UE comprises: narrow band UE, wideband UE, UE with carrier aggregation capability and UE with bandwidth adaptive adjustment capability.

7. A BWP adaptive selective modulation system, comprising:

8. An electronic device, comprising:

the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1-6.

9. A non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the method of any one of claims 1 to 6.