CN101267658A

CN101267658A - Method, device and system for user device to adjust working frequency

Info

Publication number: CN101267658A
Application number: CNA2007100874208A
Authority: CN
Inventors: 于映辉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-03-16
Filing date: 2007-03-16
Publication date: 2008-09-17

Abstract

Disclosed is a method, apparatus and system for adjusting a user equipment work frequency in the communication technology field. The adjustment of the user equipment work frequency can be triggered by a network side or by the UE. In the scheme that the UE triggers the user equipment work frequency, a work frequency adjustment request of a carrier frequency band position and/or range information is sent to the network side; the network side judges whether the adjustment of the work frequency can be performed after receiving the request, and sends a response message to the UE based on the judged result; when the network judges that the user equipment work frequency can be adjusted, the UE adjusts the work frequency based on indication of the network. The embodiments of the invention solve the problem of adjusting UE work frequency, further solve the communication problem of the UE with different frequency bands, simplify the operation of the UE and the network side, and increase user experience.

Description

Method, device and system for adjusting working frequency of user equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for adjusting a working frequency of a user equipment.

Background

In an LTE (long term evolution network) wireless communication system, a minimum reception bandwidth of a UE is defined as 20M, while a corresponding possible used system bandwidth is from 1.25M to 20M. And due to the adoption of the OFDM technology, the UE can receive partial bandwidth of the system and normally work. Since the bandwidth of the UE and the bandwidth of the system may be different, the operating frequency of the UE has a certain range, and the frequency may be changed within the range, which provides a good background support for adjusting the operating frequency of the UE. At the same time, this adjustment may also lead to some optimization for the UE or system.

As shown in fig. 1, for the situation of the bandwidth and the location of the UE and the cell in the LTE system, the control information of the LTE system is 1.25M at the center of the bandwidth, that is, the shaded portion, and when the UE can receive the control information of the system, the UE can operate within a certain operating location range as long as the network can allocate the resource required by the UE within the bandwidth that can be received by the UE.

With the development of access technologies, it is possible to use bandwidths used by access technologies such as GSM (global system for mobile communications)/WCDMA (wideband code division multiple access)/CDMA (code division multiple access) for LTE technology, so that the situation of radio resources carried by LTE access technology becomes more diversified. For efficient utilization of radio resources owned by the UE, the operator may put special services, such as MBMS (multimedia broadcast multicast service), or VoIP (internet voice protocol), etc., to a special frequency band, and there are difficulties if the UE is to receive services on a different frequency band. That is, the UE may not be able to support services of two frequency bands at the same time, so the UE experiences poor experience, especially when the special service is a service that is relatively common, such as VOIP.

For the above problem, currently, there are two processing methods for the UE:

treatment method 1: the UE can only support services on one frequency band;

i.e. if the UE is already active on one frequency band, the user has to interrupt the already existing service in order to support the service on another frequency band. Therefore, the user experiences very poor experience, especially if the special service is a service that is relatively common, such as VOIP, the user experiences very poor experience because the service is interrupted to support the special service, or the special service is interrupted to support another service.

Treatment method 2: the UE supports services in different frequency bands in a time division manner, the UE has different operating modes (including parameters such as DRX) in different frequency bands, and the operating modes of the UE in each frequency band need to be negotiated, thereby increasing the complexity of the system and the UE. Especially, the UE needs to continuously adjust the receiving/transmitting frequency between different frequency bands, and the UE needs to transmit different working gaps (in a compression mode in UMTS and a gap mode in LTE) in different frequency bands, and the network has complexity.

Based on the above-mentioned shortcomings of the prior art, such as poor user experience and complex processing, when the UE receives services in different frequency bands, the operating frequency of the UE needs to be adjusted.

Disclosure of Invention

The embodiment of the invention provides a method, a device and a system for adjusting the working frequency of user equipment, which solve the problem that the working frequency of UE cannot be adjusted in the prior art.

The embodiment of the invention is realized by the following technical scheme:

the embodiment of the invention provides a method for adjusting working frequency of user equipment, which comprises the following steps:

user Equipment (UE) triggers and adjusts the working frequency, and sends a working frequency adjustment request carrying frequency band position and/or range information to a network side;

after receiving the request, the network side judges whether the adjustment of the working frequency can be carried out or not, and sends a response message to the UE according to a judgment result;

and when the network side judges that the UE can adjust the working frequency, the UE adjusts the working frequency according to the indication of the network side.

An embodiment of the present invention provides a first user equipment, including:

the working frequency adjustment judging module is used for judging whether the working frequency needs to be adjusted or not;

and the first working frequency adjustment request module is used for receiving the judgment result of the working frequency adjustment judgment module and sending a working frequency adjustment request carrying frequency band position and/or range information to a network side when the working frequency needs to be adjusted.

An embodiment of the present invention provides a network device one, including:

the first user equipment working frequency adjustment judging module is used for judging whether corresponding resources can be scheduled for the user equipment or not after receiving a working frequency adjustment request message which is sent by the user equipment and carries frequency band position and/or range information;

and the user equipment working frequency adjustment command issuing module is used for receiving the judgment result of the first user equipment working frequency adjustment judgment module and issuing a working frequency adjustment command to the user equipment when judging that the corresponding resource can be scheduled for the user equipment.

The embodiment of the invention provides a system for adjusting the working frequency of user equipment, which comprises:

the user equipment I is provided with:

the first working frequency adjustment request module is used for receiving the judgment result of the working frequency adjustment judgment module and sending a working frequency adjustment request carrying frequency band position and/or range information to a network side when the working frequency needs to be adjusted;

a network device one, provided with:

UE triggers and adjusts the working frequency, and sends a message carrying frequency band position, range and/or data information to a network side;

the network side judges whether the working frequency needs to be adjusted for the UE according to the information reported by the UE and/or the frequency band information of the data acquired by the network side according to the data information, and issues a working frequency adjustment command to the UE after the working frequency of the UE is determined to be adjusted;

and the UE adjusts the working frequency according to the working frequency adjusting command.

An embodiment of the present invention provides a second user equipment, including:

and the second operating frequency adjustment request module is used for sending a request carrying frequency band position, range and/or data information for adjusting the operating frequency to the network side.

An embodiment of the present invention provides a second network device, including:

the frequency band information acquisition module is used for acquiring frequency band information of the data according to the received data information sent by the user equipment;

a second user equipment working frequency adjustment judging module, configured to judge, after a request for adjusting a working frequency is received, where the request carries a frequency band position, a range, and/or data information, whether the working frequency can be adjusted for the user equipment according to the received information, frequency band information where the data is located, load balancing, channel quality, and/or influences on other user equipment;

and the user equipment working frequency adjusting command issuing module is used for receiving the judgment result of the user equipment working frequency adjusting judgment module II and issuing a working frequency adjusting command to the user equipment when the judgment result indicates that the working frequency of the user equipment can be adjusted.

The embodiment of the invention provides a system for adjusting the working frequency of user equipment, which comprises: the second user equipment and the second network equipment, the second user equipment is provided with:

a second working frequency adjustment request module, configured to send a request for adjusting the working frequency, which carries the position, range, and/or data information of the frequency band, to a network side;

the second network device is provided with:

the network side triggers and adjusts the working frequency of the UE and issues a working frequency adjusting command to the UE;

and the UE adjusts the working frequency according to the working frequency adjusting command of the network side.

An embodiment of the present invention provides a third network device, including:

the user equipment working frequency adjustment triggering module is used for issuing a triggering command for adjusting the working frequency of the user equipment;

and the user equipment working frequency adjusting command issuing module is used for receiving the triggering command of the user equipment working frequency adjusting triggering module and issuing the working frequency adjusting command to the user equipment.

a third network device provided with:

the user equipment working frequency adjusting command issuing module is used for receiving a triggering command of the user equipment working frequency adjusting triggering module and issuing a working frequency adjusting command to the user equipment;

and the user equipment III is provided with a working frequency adjusting module and is used for adjusting the working frequency of the user equipment according to the working frequency adjusting command issued by the user equipment working frequency adjusting command issuing module.

According to the technical scheme provided by the embodiment of the invention, the embodiment of the invention solves the problem that the working frequency of the UE cannot be adjusted in the prior art through the matching of the user equipment and the network side, and the UE can communicate with different adjacent frequency bands by adjusting the working frequency of the UE, so that the operation of the UE and the network side is simplified, and the user experience is enhanced.

Drawings

Fig. 1 is a schematic diagram of the situation of UE and cell bandwidth and location in a prior art LTE system;

FIG. 2A is a state diagram before adjusting the operating frequency of a UE;

FIG. 2B is a state diagram corresponding to FIG. 2A after adjusting the operating frequency of the UE;

FIG. 3A is a state diagram illustrating another example of adjusting the operating frequency of a UE;

FIG. 3B is a state diagram after adjusting the operating frequency of the UE corresponding to FIG. 3A;

FIG. 4 is a flowchart of one embodiment of a method;

FIG. 5 is a flowchart of a second method according to an embodiment of the present invention;

FIG. 6 is a flowchart of a method according to a third embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a system according to a fourth embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a system according to a fifth embodiment of the present invention;

fig. 9 is a schematic structural diagram of a system according to a sixth embodiment of the present invention.

Detailed Description

The technical scheme of the embodiment of the invention adjusts the working frequency of the UE through negotiation between the network side and the UE side, thereby enabling the control channels of a plurality of different frequency bands to fall in the adjusted receiving bandwidth. The triggering adjustment of the UE operating frequency may be performed by the UE side or the network side.

The condition for triggering the adjustment of the UE working frequency comprises the following steps: the UE acquires the position and/or range information of different frequency bands, and can receive the data of the different frequency bands by adjusting the working frequency according to the bandwidth judgment of the UE; or, the frequency band information changes; or, the network side resource changes; or, the capability of the UE changes.

The frequency band information change comprises: a change in frequency band data, a change in frequency band status, a change in location of a frequency band, a change in priority of data for different frequency bands, and/or a change in range of a frequency band.

The following embodiments of the present invention are applied to an LTE wireless communication system as an example, and the purpose of triggering adjustment of the operating frequency of the UE may be to receive data of a plurality of different frequency bands. The plurality of different frequency bands which can be received by the UE satisfy that the total interval is less than or equal to (the reception bandwidth of the UE is-1.25M), that is, the interval between two edge frequency bands is less than or equal to (the reception bandwidth of the UE is-1.25M).

For the purpose of facilitating an understanding of the contents of the embodiments of the present invention, reference will now be made in detail to the accompanying drawings.

The technical scheme of the embodiment of the invention comprises the following conditions: one is to adjust the operating frequency of the UE so that different frequency bands, for example, frequency band 1 and frequency band 2, can completely fall within the receiving bandwidth of the UE; another is to adjust the operating frequency of the UE so that the control channels of different frequency bands, for example, frequency band 1 and frequency band 2, fall within the reception bandwidth of the UE. The above two cases will be described separately with reference to the drawings.

Case one, to be adjusted, frequency band 1 and frequency band 2 fall completely within the reception bandwidth of the UE;

fig. 2A shows a state before the operating frequency of the UE is adjusted, in which the UE has a connection with frequency band 1, and the operating frequency of the UE is located at any position where the operating frequency of the UE can completely receive frequency band 1. And the frequency band 2 is outside the receiving bandwidth range of the UE, and under the condition that the interval between the frequency band 1 and the frequency band 2 is small, when the UE has an active service on the frequency band 2, the operating frequency of the UE is adjusted to make the two frequency bands completely fall within the receiving bandwidth of the UE, and the adjusted state is shown in fig. 2B. At this time, the UE can measure both frequency band 1 and frequency band 2 as the same frequency layer, and the UE also avoids the complexity of repeatedly adjusting its operating frequency to receive data of different frequency bands.

Case two, for adjustment, the control channels of frequency band 1 and frequency band 2 fall within the reception bandwidth of the UE;

fig. 3A shows a state before the operating frequency of the UE is adjusted, and fig. 3B shows a state after the operating frequency of the UE is adjusted, which is similar to the case one, except that: after the operating frequency of the UE is adjusted, the control channels of the frequency band 1 and the frequency band 2 are made to fall within the reception bandwidth of the UE, instead of making the two frequency bands fall completely within the reception bandwidth of the UE. After the adjustment, the UE may receive the control signaling of frequency band 1 and frequency band 2 at the same time, for both frequency band 1 and frequency band 2, only part of the resources of the UE are available, and the network needs to ensure the use of limited resources for the UE, so as to ensure that the UE can normally operate in both frequency bands.

The following describes a method for a network side to negotiate with a UE to adjust the UE operating frequency according to different embodiments.

As shown in fig. 4, the first embodiment reads information of different frequency bands by the UE, and preliminarily determines whether to receive data of different frequency bands simultaneously by adjusting the operating frequency. The method specifically comprises the following steps:

step 1: the UE acquires the position and/or range information of different frequency bands;

the method for acquiring the position and/or range information of different frequency bands by the UE comprises the following steps:

1) the UE can acquire the position and/or range information of different frequency bands by reading the broadcast message of the current cell;

2) the UE may also obtain the location and/or range information of its frequency band by reading the broadcast message of each frequency band cell;

3) if the downlink signaling of the network includes the related location and/or range information, the UE may also obtain the location and/or range information of different frequency bands through the downlink signaling.

When the frequency band information changes, or the network side resource changes, or the capability of the UE changes, the UE acquires the position and/or range information of the changed frequency band, and/or the network side resource information, and/or the capability information of the UE;

step 2: the UE judges whether the data of different frequency bands can be received by adjusting the working frequency of the UE according to the bandwidth of the UE;

and (3) when judging that the data of different frequency bands which are expected to be received can be received by adjusting the working frequency, executing the step, and otherwise, ending.

When the purpose of the UE to adjust the operating frequency is not to receive data of a plurality of different frequency bands, the UE may determine the purpose according to the actual purpose of adjusting the operating frequency. For example, when data in one or several of the frequency bands stops being received, the UE may adjust its operating frequency according to the frequency bands where active data remains. For another example, when the state of the frequency band changes, that is, the frequency band changes from available to unavailable, or vice versa, the UE also needs to make corresponding adjustment of the operating frequency, so as to improve the utilization rate of the UE.

Or when the capability of the UE changes, for example, the UE changes the support capability of the UE on the frequency band, the UE also needs to make a corresponding adjustment on the operating frequency to provide the utilization rate of the UE.

And step 3: UE sends a request message carrying position and/or range information for adjusting the working frequency to a network side;

and 4, step 4: after receiving the request, the network side judges whether the resource required by the frequency band data required to be received by the UE can be scheduled for the UE according to the actual situation;

the judgment factors of the network side include: determining whether the UE can adjust the working frequency according to data information, resource conditions, frequency band information, load balance, channel quality, influence on other UEs and the like;

and 5: the network side sends a response message to the UE according to the judgment result to indicate whether the UE can be adjusted or not, and if the UE can be adjusted, the network side prompts the working frequency which can be adjusted by the UE;

step 6: after the UE receives the response message, if the adjustment is possible, the UE adjusts according to the indication of the network side, otherwise, the UE does not adjust.

And 7: and after the UE is successfully adjusted, sending an adjustment success message to the network side, and after receiving the message, the network side readjusts the resources for the UE.

In the second embodiment, as shown in fig. 5, the UE reports the location, bandwidth and/or data information of the frequency band to the network side, and the network side determines and decides whether to adjust the operating frequency of the UE. The method specifically comprises the following steps:

step 1: the UE reports the position, range and/or data information of the network frequency band;

step 2: the network side acquires the frequency band information of the data according to the information provided by the UE;

the learned frequency band information includes: location, range, data information, and/or status information of the frequency band. The network side may acquire the frequency band information through an interface between access nodes, or through a core network, or through downlink signaling, or through a broadcast message.

And step 3: and the network side judges whether the UE needs to be adjusted according to the information reported by the UE and/or the information of the frequency band in which the data is positioned. Meanwhile, the network side judges the feasibility of the adjustment of the working frequency of the UE according to factors such as resource scheduling, load balancing and/or the influence on other UEs.

And 4, step 4: if the network side considers that the UE can initiate the adjustment of the working frequency, the network side issues an adjustment command for the UE. The command includes the operating frequency and/or range adjusted by the UE.

And 5: and after receiving the adjusting command, the UE adjusts according to the command and sends a message to the network side after the adjustment is successful.

Step 6: and the network side readjusts the resources for the UE according to the message.

In the third embodiment, as shown in fig. 6, the network side actively initiates adjustment of the UE operating frequency according to data information, resource conditions, frequency band information, resource scheduling, load balancing, and/or other UE influences. The method specifically comprises the following steps:

step 1: the network side determines whether the UE performs the working frequency adjustment according to factors such as data information, resource conditions, frequency band information, resource scheduling, load balancing and/or the influence of other UEs.

Step 2: if the network side considers that the UE can initiate the adjustment of the working frequency, the network side issues an adjustment command for the UE. The adjustment command includes the adjusted position and range of the UE.

And step 3: and the UE adjusts according to the indication of the network side, and sends a message to the network side after the adjustment is successful.

And 4, step 4: and the network side readjusts the resources for the UE according to the message.

Corresponding to the first method embodiment, a fourth method embodiment of the present invention provides a system for adjusting an operating frequency of a user equipment, as shown in fig. 7, the system of this embodiment includes: a first user device and a first network device.

In this embodiment, the first user equipment is provided with: the device comprises a frequency band position and range information acquisition module, a working frequency adjustment judgment module, a first working frequency adjustment request module and a first working frequency adjustment module.

And the frequency band position and range information acquisition module is used for acquiring information of different frequency bands and transmitting the information to the working frequency adjustment and judgment module. The position and/or range information of different frequency bands can be obtained by reading the broadcast message of the current cell; the position and/or range information of the frequency band can be obtained by respectively reading the broadcast messages of the frequency bands; if the downlink signaling of the network includes the relevant position and/or range information, the position and/or range information of different frequency bands can also be known through the signaling. And/or the presence of a gas in the gas,

and the working frequency adjustment judging module is used for judging whether the data of the different frequency bands can be received or other purposes by adjusting the working frequency according to the bandwidth of the working frequency adjustment judging module and the acquired information of the different frequency bands.

The first operating frequency adjustment request module is configured to receive a determination result of the operating frequency adjustment determination module, and send an operating frequency adjustment request carrying frequency band position and/or range information to a network side when the operating frequency needs to be adjusted, where the request carries the frequency band position and/or range information.

And the working frequency adjusting module is used for adjusting the working frequency of the user equipment according to the working frequency adjusting command issued by the network side.

In this embodiment, the first network device is provided with: the device comprises a first user equipment working frequency adjusting and judging module and a first user equipment working frequency adjusting command issuing module.

The first user equipment working frequency adjustment judging module is used for judging whether corresponding resources can be scheduled for the user equipment according to factors such as data information, resource conditions, frequency band information, load balance, channel quality and/or influences on other user equipment after receiving a working frequency adjustment request message which is sent by the user equipment and carries the frequency band position and/or range information;

Corresponding to the second method embodiment, a fifth method embodiment of the present invention provides a system for adjusting an operating frequency of a ue, where as shown in fig. 8, the system in this embodiment includes a second ue and a second network device.

In this embodiment, the second user equipment is provided with: a second working frequency adjustment request module and a second working frequency adjustment module.

And the second operating frequency adjustment request module is used for sending a request carrying frequency band position, range and/or data information for adjusting the operating frequency to a network side.

And the working frequency adjusting module is used for adjusting the working frequency according to the command after receiving the working frequency adjusting command issued by the network side.

In this embodiment, the second network device is provided with: the device comprises a frequency band information acquisition module, a second user equipment working frequency adjustment judgment module and a sending module of a user equipment working frequency adjustment command.

a second user equipment working frequency adjustment judging module, configured to, after receiving a request for adjusting the working frequency, where the request carries a frequency band position, range, and/or data information, judge whether the working frequency can be adjusted for the user equipment according to the received information, frequency band information where the data is located, load balancing, channel quality, and/or influences on other user equipment;

and the user equipment working frequency adjustment command issuing module is used for receiving the judgment result of the user equipment working frequency adjustment judgment module II and issuing a working frequency adjustment command to the user equipment when the judgment result indicates that the working frequency of the user equipment can be adjusted.

Corresponding to the third embodiment of the foregoing method, a sixth embodiment of the present invention provides a system for receiving data of different frequency bands by a user equipment, as shown in fig. 9, the system of this embodiment includes: user equipment III and network equipment III.

The third network device is provided with: the device comprises a user equipment working frequency adjusting triggering module and a user equipment working frequency adjusting command issuing module.

The user equipment working frequency adjustment triggering module is used for triggering the user equipment to adjust the working frequency according to the change of factors such as data information, resource conditions, frequency band information, resource scheduling, load balancing and/or other user equipment influences and the like, and issuing a triggering command for adjusting the working frequency of the user equipment.

And the user equipment working frequency adjusting command issuing module is used for receiving the triggering command of the user equipment working frequency adjusting triggering module and issuing a working frequency adjusting command to the user equipment.

And the third user equipment is provided with a working frequency adjusting module for adjusting the working frequency according to a working frequency adjusting command issued by the third network equipment.

In summary, the embodiment of the present invention solves the problem that the UE operating frequency cannot be adjusted in the prior art through the cooperation of the UE and the network side, and enables the UE to communicate with different adjacent frequency bands by adjusting the UE operating frequency, thereby simplifying the operations of the UE and the network side and enhancing the user experience.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for adjusting an operating frequency of a user equipment, comprising:

2. The method of claim 1, wherein the UE triggering adjustment of an operating frequency comprises:

the UE acquires the position and/or range information of different frequency bands, and can receive the data of the different frequency bands by adjusting the working frequency according to the bandwidth judgment of the UE; or,

when the frequency band information changes, or when the network side resource changes, or when the capability of the UE changes, the UE obtains the location and/or range information of the changed frequency band, and/or the network side resource information, and/or the capability information of the UE, and determines, according to its own bandwidth, that it is possible to receive data of different frequency bands by adjusting the operating frequency.

3. The method of claim 2, wherein the method of the UE acquiring the location and/or range information of the different frequency bands comprises:

the UE acquires the position and/or range information of the different frequency bands by reading the broadcast message of the current cell; or,

the UE acquires the position and/or range information of the frequency band by respectively reading the broadcast messages of the cells of each frequency band; or,

and if the downlink signaling of the network comprises the related position and/or range information, the UE acquires the position and/or range information of different frequency bands through the downlink signaling.

4. The method of claim 1, wherein the network side determines whether to adjust the operating frequency for the UE according to data information, resource conditions, frequency band information, load balancing, channel quality, and/or impact factors on other UEs.

5. The method of claim 1, wherein after the UE adjusts the operating frequency according to the adjustment command from the network side, the method further comprises:

UE sends the successful message of adjustment to the network side;

and after receiving the message, the network side readjusts the resources for the UE.

6. A user equipment one, comprising:

7. The user device of claim 6, wherein the user device further comprises:

the frequency band position and range information acquisition module is used for acquiring information of different frequency bands and transmitting the information to the working frequency adjustment and judgment module; and/or the presence of a gas in the gas,

8. A network device i, comprising:

9. A system for adjusting operating frequency of a user equipment, comprising: the user equipment I is provided with:

a network device one, provided with:

10. A method for adjusting an operating frequency of a user equipment, comprising:

11. The method of claim 10, wherein the UE triggering adjustment of an operating frequency comprises:

the frequency band information changes, or the network resources change, or the UE capabilities change.

12. The method of claim 10, wherein the method for the network side to obtain the frequency band information of the data information comprises:

obtaining through an interface between access nodes; or through a core network; or through the downlink signaling of the access node; or by broadcast messages.

13. The method of claim 10 or 12, wherein the frequency band information in which the acquired data is located comprises: location, range, data information, and/or status information of the frequency band.

14. The method of claim 10, wherein the network side determines whether to adjust the operating frequency for the UE according to data information, resource conditions, frequency band information, load balancing, channel quality, and/or impact factors on other UEs.

15. The method of claim 10, wherein after the UE adjusts the operating frequency according to the adjustment command from the network side, the method further comprises:

UE sends the successful message of adjustment to the network side;

16. A second user device, comprising:

17. The user device of claim 16, wherein the user device further comprises:

18. A second network device, comprising:

19. A system for adjusting operating frequency of a user equipment, comprising:

a second user equipment, which is provided with:

a second network device provided with:

20. A method for adjusting an operating frequency of a user equipment, comprising:

21. The method of claim 20, wherein the network-side triggering adjustment of the UE operating frequency comprises:

the frequency band information changes, or the resources on the network side change, or the UE capability changes.

22. The method of claim 20, wherein the network side determines whether to adjust the operating frequency for the UE according to data information, resource conditions, frequency band information, load balancing, channel quality, and/or impact factors on other UEs.

23. The method of claim 20, wherein after the UE adjusts the operating frequency according to the adjustment command from the network side, the method further comprises:

UE sends the successful message of adjustment to the network side;

24. A third network device, comprising:

25. A system for adjusting operating frequency of a user equipment, comprising:

a third network device provided with: