CN115767696A

CN115767696A - Network energy-saving dynamic bandwidth switching method and equipment

Info

Publication number: CN115767696A
Application number: CN202211370862.4A
Authority: CN
Inventors: 杜滢; 焦慧颖; 王志勤; 沈霞; 闫志宇; 刘晓峰; 魏贵明; 徐菲; 徐晓燕
Original assignee: China Academy of Information and Communications Technology CAICT
Current assignee: China Academy of Information and Communications Technology CAICT
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-03-07

Abstract

The application discloses a network energy-saving dynamic bandwidth switching method, which comprises the following steps: determining first configuration information, and configuring M uplink BWPs and/or N downlink BWPs; the M uplink BWPs comprise a first uplink BWP, and all terminal devices of the cell terminal device group preferentially use the first uplink BWP to finish a random access process; the N downlink BWPs comprise a first downlink BWP, the first downlink BWP comprises downlink control channel resources of a cell terminal equipment group, and the first downlink BWP is preferentially used for transmitting downlink control information; indicating the uplink BWP and/or downlink BWP switching information and the information of data scheduling of the switched uplink BWP and/or downlink BWP by using a terminal equipment group common downlink control signaling on the first downlink BWP; after the data transmission is finished, the terminal automatically switches back to the first downlink BWP, and continues to monitor the downlink control information on the first downlink BWP. The application also includes an apparatus for implementing the method. The application aims to realize network energy saving in a frequency domain.

Description

Network energy-saving dynamic bandwidth switching method and equipment

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for network energy saving dynamic bandwidth switching.

Background

Mobile communication networks become more and more dense, the number of antennas is greater, the bandwidth is greater, the frequency band is greater, and new solutions need to be developed to improve network energy saving. Most of the energy consumption of the mobile communication network comes from the wireless access network, the sending and receiving bandwidth of the base station has great influence on the power consumption of the base station, and the base station receiving and sending bandwidth can be reduced dynamically and adaptively to save the power consumption of the base station.

The BWP technology introduced by 3GPP is used for saving energy of the terminal, and the terminal may only need to meet the minimum bandwidth requirement without supporting all carrier bandwidths, which is beneficial to reducing the cost of the terminal, and when the traffic volume of the terminal is not large, the terminal may be switched to low bandwidth operation, thereby reducing the power consumption of the terminal. The network dynamically configures different BWPs for the terminal according to the service requirements.

However, in the BWP technology, from the network side, the multi-BWP brings complexity to the network side, for example, BWP switching and configuration of various resources in the multi-BWP are included, which is not favorable for energy saving on the network side. The division of multiple small BWPs can cause redundancy and fragmentation of resources in the carrier bandwidth, which is not favorable for the traffic demand of large-traffic mobile phones for peak bandwidth. In addition, the BWP handover mechanism indicates downlink and/or uplink BWP handover for terminals residing on its cell to the base station respectively, and a large number of uplink and downlink BWP handover indications will be required to indicate BWP handover for all terminals. BWP switching to a terminal-specific downlink control signaling format, such as DCI format 0/1/0/2/1/2, may incur downlink overhead and power consumption, and technical improvements are needed to avoid the overhead and power consumption incurred by BWP switching indication for each terminal.

In addition, when data transmission is performed by multiple base stations, the dynamic base station switch can play a role in saving energy, if dynamic switching of multiple base stations dedicated to a terminal is used for dynamic turning on and off of the base stations, there are problems that when multiple base stations configure the same BWP and configure different coresetpoilndex for distinguishing different base stations, the multi-base station switching cannot achieve the effect of saving energy of the base stations, and if multiple base stations configure different BWPs, although the effect of saving energy of a network can be achieved, frequent BWP switching can bring about terminal signaling overhead and terminal power loss due to the implementation of BWP switching signaling dedicated to the terminal.

Disclosure of Invention

The application provides a network energy-saving dynamic bandwidth switching method and equipment, which solve the problem of high energy consumption of a mobile communication network, and particularly realize network energy saving in a frequency domain by reducing the receiving and transmitting bandwidth of a base station in a dynamic self-adaptive manner.

In a first aspect, a method for network energy saving dynamic bandwidth switching includes the following steps:

determining first configuration information, wherein the first configuration information is used for configuring M uplink BWPs and/or N downlink BWPs;

the M uplink BWPs comprise a first uplink BWP, the first uplink BWP comprises random access resources of a cell terminal device group, and all terminal devices of the cell terminal device group preferentially use the first uplink BWP to complete a random access process;

the N downlink BWPs include a first downlink BWP, where the first downlink BWP includes downlink control channel resources of a cell terminal device group, and the network device and all terminal devices of the cell terminal device group preferentially use the first downlink BWP to transmit downlink control information;

and indicating the uplink BWP and/or downlink BWP switching by using a terminal equipment group common downlink control signaling.

A network energy-saving dynamic bandwidth switching method provided in a first aspect of the present application is used for a network device, and includes the following steps:

sending or receiving first configuration information, where the first configuration information is used to configure M uplink BWPs and/or N downlink BWPs;

the M uplink BWPs include a first uplink BWP, where the first uplink BWP includes a random access resource of a cell terminal device group, and the network device preferentially uses the first uplink BWP to complete all terminal device random access procedures of the cell terminal device group;

the N downlink BWPs include a first downlink BWP, where the first downlink BWP includes a downlink control channel resource of a cell terminal device group, and the network device preferentially uses the first downlink BWP to send downlink control information to all terminal devices of the cell terminal device group;

and sending a terminal equipment group common downlink control signaling at the first downlink BWP, wherein the signaling indicates the uplink BWP and/or downlink BWP switching.

A first aspect of the present application provides a network energy saving dynamic bandwidth switching method, which is used for a terminal device, and includes the following steps:

receiving first configuration information, wherein the first configuration information is used for configuring M uplink BWPs and/or N downlink BWPs;

the M uplink BWPs include a first uplink BWP, the first uplink BWP includes a random access resource of a cell terminal device group, and any terminal device of the cell terminal device group preferentially uses the first uplink BWP to complete a random access process;

the N downlink BWPs include a first downlink BWP, where the first downlink BWP includes downlink control channel resources of a cell terminal device group, and any terminal device in the cell terminal device group preferentially receives downlink control information using the first downlink BWP;

and receiving a common downlink control signaling of the terminal device group, wherein the signaling indicates the uplink BWP and/or downlink BWP switching.

In an implementation of the network energy-saving dynamic bandwidth switching method according to any one of the first aspect of the present application, preferably, a bandwidth of the first uplink BWP is smaller than other uplink BWPs, and/or a bandwidth of the first downlink BWP is smaller than other downlink BWPs.

In an embodiment of the network energy saving dynamic bandwidth switching method according to any of the first aspect of the present application, preferably, the method includes at least 1 of the following steps:

in response to a condition that the data volume of upstream traffic data is less than a first set threshold, transmitting the upstream traffic data using the first upstream BWP;

and in response to a condition that the data volume of the downlink traffic data is smaller than a second set threshold, transmitting the downlink traffic data using the first downlink BWP.

Further preferably, at least 1 step of:

determining first downlink signaling, wherein the first downlink signaling contains indication information for switching from the first uplink BWP to any M of other uplink BWPs, and M = 1-M-1;

determining a second downlink signaling, wherein the second downlink signaling contains any N pieces of indication information for switching from the first downlink BWP to other downlink BWPs, and N = 1-N-1;

and determining third downlink signaling, wherein the third downlink signaling contains indication information of switching from the first uplink BWP to any M of other uplink BWPs and switching from the first downlink BWP to any N of other downlink BWPs, and M = 1-M-1 and N = 1-N-1.

Further, in response to the indicated end of data transmission in the time-frequency resource of the uplink data, switching to the first uplink BWP; and/or switching to the first downlink BWP in response to the indicated end of data transmission in the time-frequency resource of the downlink data.

Further, the method of the first aspect of the present application comprises at least one of the following:

the first downlink signaling is also used for indicating time-frequency resources of uplink data and/or the number of time slots for switching uplink BWP continuously;

the second downlink signaling is also used for indicating time-frequency resources of downlink data and/or the number of continuous time slots for switching downlink BWP;

the third downlink signaling is further used for indicating time-frequency resources of uplink and downlink data and/or the number of time slots for switching uplink and downlink BWP.

determining second configuration information, wherein the second configuration information is used for configuring a data structure of the first downlink signaling, and a starting point and an information length of BWP identification information indicated in each block in the first downlink signaling;

determining third configuration information, where the third configuration information is used to configure a data structure of the second downlink signaling, and a start point and an information length of BWP identification information indicated in each block in the second downlink signaling;

determining fourth configuration information that learns a data structure for configuring the third downlink signaling, and a start point and an information length of BWP identification information indicated in each block in the third downlink signaling.

Further preferably, embodiments of the first aspect of the present application further include: determining fifth configuration information, the fifth configuration information being for at least one of:

indicating within said first upstream BWP a frequency range dedicated to a target terminal device;

indicating a frequency range dedicated to a target terminal device within the first downlink BWP;

indicating a frequency range dedicated to a target terminal device within any M upstream BWPs within the M upstream BWPs;

and indicating a frequency range dedicated to the target terminal device in any N downlink BWPs in the Nth downlink BWP.

Further preferably, the downlink control signaling is scrambled by an RNTI, and the RNTI is dedicated to the group common downlink control signaling for BWP handover; the common downlink control signaling of the terminal equipment group comprises at least 1 of the first downlink signaling, the second downlink signaling and the third downlink signaling.

In a second aspect, the present application provides a network device, configured to implement the network energy saving dynamic bandwidth switching method in any of the first aspects of the present application, where at least one module in the network device is configured to:

sending or receiving the first configuration information;

receiving the upstream service data by using the first upstream BWP in response to a condition that a data amount of the upstream service data is less than a first set threshold;

responding to the condition that the data volume of the downlink service data is smaller than a second set threshold value, and sending the downlink service data by using the first downlink BWP;

receiving and determining at least one of second configuration information, third configuration information, fourth configuration information and fifth configuration information; or determining and sending at least one of second configuration information, third configuration information, fourth configuration information and fifth configuration information;

sending a first downlink signaling according to the second configuration information, or sending a second downlink signaling according to the third configuration information, or sending a third downlink signaling according to the fourth configuration information;

and in response to the first downlink signaling, switching to the time-frequency resource and the time slot corresponding to the indicated uplink BWP to receive the uplink data, or in response to the second downlink signaling, switching to the time-frequency resource and the time slot corresponding to the indicated downlink BWP to transmit the downlink data, or in response to the third downlink signaling, switching to the time-frequency resource and the time slot corresponding to the indicated uplink BWP to receive the uplink data, and simultaneously switching to the time-frequency resource and the time slot corresponding to the indicated downlink BWP to transmit the downlink data.

Switching to the first uplink BWP in response to the indicated end of data transmission in the time-frequency resource of the uplink data;

switching to the first downlink BWP in response to the indicated end of data transmission in the time-frequency resource of the downlink data.

In a third aspect, the present application provides a terminal device, configured to implement the network energy saving dynamic bandwidth switching method according to any embodiment of the first aspect of the present application, where at least one module in the terminal device is configured to perform at least one of the following functions:

receiving the first configuration information;

responding to the condition that the data volume of the uplink service data is smaller than a first set threshold value, and sending the uplink service data by using the first uplink BWP;

receiving downlink traffic data using the first downlink BWP in response to a condition that a data amount of the downlink traffic data is less than a second set threshold;

receiving and determining at least one of second configuration information, third configuration information, fourth configuration information and fifth configuration information;

and responding to the first downlink signaling, switching to the time-frequency resource and the time slot corresponding to the indicated uplink BWP to transmit the uplink data, or responding to the second downlink signaling, switching to the time-frequency resource and the time slot corresponding to the indicated downlink BWP to receive the downlink data, or responding to the third downlink signaling, switching to the time-frequency resource and the time slot corresponding to the indicated uplink BWP to transmit the uplink data, and simultaneously switching to the time-frequency resource and the time slot corresponding to the indicated downlink BWP to receive the downlink data.

and switching to the first downlink BWP in response to the indicated end of data transmission in the time-frequency resource of the downlink data.

In a fourth aspect, the present application further provides a communication device, including: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to any one of the embodiments of the first aspect of the application.

In a fifth aspect, the present application also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the first aspect of the present application.

A sixth aspect of the present application further proposes a mobile communication system comprising at least one network device according to any of the embodiments of the second aspect of the present application and/or at least one terminal device according to any of the embodiments of the third aspect of the present application.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

the invention provides a method for saving energy of a network side frequency domain, which can realize the self-adaptive use of network side frequency resources by configuring common BWP information for a terminal and adopting common information of a terminal group to carry out BWP switching. To save network power consumption, the gNB may operate with a narrower bandwidth when traffic is low, and may use a larger bandwidth to send/receive data if larger packets arrive.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a flow chart of an embodiment of the method of the present application;

FIG. 2 is a schematic diagram of a network energy-saving BWP;

fig. 3 (a) BWP handover indication information of first downlink signaling;

fig. 3 (b) BWP handover indication information of the second downlink signaling;

fig. 3 (c) BWP handover indication information of the third downlink signaling;

FIG. 4 is a diagram of target terminal-specific BWP;

FIG. 5 is a flow chart of an embodiment of a method of the present application for a network device;

FIG. 6 is a flowchart of an embodiment of a method of the present application for a terminal device;

FIG. 7 is a schematic diagram of an embodiment of a network device;

FIG. 8 is a schematic diagram of an embodiment of a terminal device;

fig. 9 is a schematic structural diagram of a network device according to another embodiment of the present invention;

fig. 10 is a block diagram of a terminal device of another embodiment of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Fig. 1 is a flowchart of an embodiment of the method of the present application.

A network energy-saving dynamic bandwidth switching method comprises the following steps:

step 101, determining configuration information, wherein the configuration information is used for configuring M uplink BWPs and/or N downlink BWPs;

to configure the power save dedicated BWP, at least one of configuration information is determined to be sent by higher layer signaling to the network device or the terminal device or to be sent by the network device to the terminal device.

First configuration information, configured to configure M uplink BWPs and/or N downlink BWPs, where the M uplink BWPs include a first uplink BWP, and the first uplink BWP includes a random access resource of a cell terminal device group, and preferentially use the first uplink BWP to complete a random access procedure; the N downlink BWPs include a first downlink BWP, where the first downlink BWP includes a downlink control channel resource of a cell terminal device group, and the first downlink BWP is preferentially used to transmit downlink control information.

Wherein, the first downlink BWP at least comprises a CORESET0 frequency domain and a downlink control channel, and the other BWPs at least comprise a downlink data channel; the first upstream BWP configures at least random access resources. The first configuration information is SIB1 or configured by RRC signaling.

Further preferably, fifth configuration information is determined, the fifth configuration information being used for at least one of: indicating within the first upstream BWP a frequency range dedicated to a target terminal device; indicating a frequency range dedicated to a target terminal device within the first downlink BWP; indicating a frequency range dedicated to a target terminal device within any M upstream BWPs within the M upstream BWPs; and indicating the frequency range dedicated to the target terminal device in any N downlink BWPs in the Nth downlink BWP.

As an embodiment of this step, the first configuration information is broadcast signaling and is sent to all terminal devices, and the first configuration information is carried in SIB1 information.

In this step, the base station divides the entire downlink system bandwidth into N segments, identifies BWP of the nth (N =1, 2.. N) segment frequency bandwidth as BWPC-DL-ID N, and broadcasts the configured N BWPs to all terminal devices through first configuration information, the configuration information of which includes the start positions of the N downlink BWPs, the RB bandwidth and the subcarrier spacing.

The base station divides the entire uplink system bandwidth into M segments, where the BWP of the mth (M = 1.., M) segment frequency bandwidth is identified as BWPC-UL-ID M. And broadcasting the configured M BWs to all terminal devices through broadcast signaling by using first configuration information, wherein the configuration information of the first configuration information comprises the starting positions of the N uplink BWPs, the RB bandwidth and the subcarrier spacing.

As another embodiment of this step, the first configuration information is an RRC signaling sent to the terminal device, and is used to indicate M uplink BWPs and N downlink BWPs, where the RRC signaling is a common signaling of the terminal. The first configuration information is RRC signaling, and the base station configures first configuration information common to the terminal equipment. For example, the base station configures the information of N downlink BWPs to the terminal device in the initial downlink BWP configured in the first RRC signaling, and in the non-standalone service system (NSA), the first configuration information may be included in the initialldownlinlinbwp signaling in the downlink configcommon configuration (3 gpp ts38.331), and in the standalone service System (SA), the first configuration information may be included in the initialldownlinlinbwp signaling in the downlink configcommon sib configuration.

As an embodiment of the terminal device in this step, the terminal device receives the first configuration information, and configures the first downlink BWP as the energy-saving dedicated BWP, where the first downlink BWP at least includes a frequency domain of CORESET0 and/or a downlink control channel PDCCH, and the other downlink BWPs at least include a downlink data channel. The first downlink BWP is a power-saving dedicated BWP, and when the data packets of the ue connected to the network device are very small, the base station schedules all ues on the first downlink BWP, which has a narrower bandwidth, in order to save network power. Preferably, the first downlink BWP at least includes a frequency domain of CORESET0 and/or a downlink control channel PDCCH, and is used for receiving a broadcast channel and receiving a downlink control signaling for BWP handover. The BWPs other than the first downlink BWP are used for the network device to serve the terminal device that needs to send/receive the larger data packet, and other BWPs may be larger bandwidth, and preferably only have downlink data channel on other BWPs. After the network device configures the downlink control signaling for switching the downlink BWP, the terminal device switches from the first downlink BWP to the indicated BWP to receive the downlink data, and switches back to the first downlink BWP immediately after receiving the downlink data or after the indicated first time, so that the network device can work on a narrower bandwidth as much as possible for network energy saving.

As another embodiment of the terminal device in this step, the terminal device receives the first configuration information, and configures the first uplink BWP to be the energy-saving dedicated BWP, where the first uplink BWP at least includes the configured random access resource. The terminal device initiates a random access process on the first uplink BWP, schedules other uplink data of the terminal device, and transmits the uplink data on a time slot on an indicated uplink time-frequency resource of the uplink BWP according to uplink scheduling information indicated by a group common handover signaling carried by a downlink control channel received by the first downlink BWP.

And 102, transmitting uplink and downlink service data by using the first uplink BWP and the first downlink BWP.

Responding to the condition that the data volume of the upstream service data is smaller than a first set threshold value, and transmitting the upstream service data by using the first upstream BWP between the network equipment and the terminal equipment of the terminal equipment group;

and responding to the condition that the data volume of the downlink service data is smaller than a second set threshold value, and transmitting the downlink service data by using the first downlink BWP between the network equipment and the terminal equipment of the terminal equipment group.

And 103, indicating the first uplink BWP and/or the first downlink BWP to switch by using a terminal equipment group common downlink control signaling.

And instructing the terminal device to switch from the first uplink BWP and/or the first downlink BWP to other uplink and/or downlink BWPs through the common downlink control signaling of the terminal device group.

The common downlink control signaling of the terminal equipment group comprises at least one of a first downlink signaling, a second downlink signaling and a third downlink signaling.

Determining first downlink signaling, wherein the first downlink signaling contains indication information for switching from the first uplink BWP to any M of other uplink BWPs, and M = 1-M-1; determining a second downlink signaling, wherein the second downlink signaling contains any N pieces of indication information for switching from the first downlink BWP to other downlink BWPs, and N = 1-N-1; and determining third downlink signaling, wherein the third downlink signaling comprises indication information of switching from the first uplink BWP to any M of other uplink BWPs and switching from the first downlink BWP to any N of other downlink BWPs, and M = 1-M-1, and N = 1-N-1.

Further, the first downlink signaling is further used to indicate time-frequency resources of uplink data and/or the number of time slots for switching uplink BWP duration; the second downlink signaling is also used for indicating time-frequency resources of downlink data and/or the number of continuous time slots for switching downlink BWP; the third downlink signaling is further used for indicating time-frequency resources of uplink and downlink data and/or the number of time slots for switching uplink and downlink BWP.

Further, to determine the format and content of the downlink signaling, at least one of the following configuration information is first determined, and is sent to the network device or the terminal device by the higher layer signaling, or is sent to the terminal device by the network device.

Determining second configuration information, which is used for configuring a data structure of the first downlink signaling, and a start point and an information length of BWP identification information indicated in each block in the first downlink signaling; determining third configuration information, where the third configuration information is used to configure a data structure of the second downlink signaling, and a starting point and an information length of BWP identification information indicated in each block in the second downlink signaling; determining fourth configuration information that learns a data structure for configuring the third downlink signaling, and a start point and an information length of BWP identification information indicated in each block in the third downlink signaling.

Further preferably, the downlink control signaling is scrambled by an RNTI, and the RNTI is dedicated for the group common downlink control signaling for BWP handover; the common downlink control signaling of the terminal equipment group comprises at least 1 of the first downlink signaling, the second downlink signaling and the third downlink signaling.

It should be noted that the first downlink signaling, the second downlink signaling, and the third downlink signaling are common downlink control signaling for the dynamic terminal device group, and carry downlink BWP switching identifiers of multiple terminals. The first downlink signaling, the second downlink signaling and the third downlink signaling use a group common downlink control signaling, which can share CRC bits and significantly reduce CRC overhead. Meanwhile, the group public downlink first downlink signaling carries the switching BWP identification information of a plurality of terminals, which is beneficial to saving energy.

It should be noted that the first downlink signaling, the second downlink signaling, and the third downlink signaling are scrambled by a first identifier (new RNTI). The first identifier (new RNTI) is newly defined RNTI (BWP-RNTI) used for switching BWP group common signaling, the first identifier is specially used for CRC scrambling of a downlink control channel PDCCH for sending the signaling, and the terminal detects PCCH scrambled by the BWP-RNTI, so that the group common downlink control signaling switched by BWP can be determined.

Step 104, automatically switching from other upstream and/or downstream BWPs to the first upstream BWP and/or the first downstream BWP.

Fig. 2 is a schematic diagram of network power saving BWP. For example, in the downlink BWP configuration, as shown in the figure, the base station includes configuration information of N downlink BWPs in the first configuration information, and the configuration information is the same for all terminals. The configuration information for each downlink BWP (BWPC _ DL _1, BWPC _dl _, BWPC _ DL _ N) includes the location, bandwidth, and subcarrier spacing of the downlink BWP. The bandwidths of the N downlink BWPs are configured according to the traffic supported by the terminal, and different downlink BWPs support different traffic. The network device configures different downlink BWPs for different terminals according to the adaptive traffic demand of the terminals. For example, when the terminal traffic is not large, the base station may configure the terminal to a low bandwidth downlink BWP. The base station further configures one of the first downlink BWPs (BWPC _ DL _ 3) in the first configuration information as an energy-saving BWP, the active BWP of the terminal device 1 is network energy-saving BWPC _ DL _3, a large data packet arrives at the network device, the terminal device is instructed to switch to BWPC _2 to receive the large data packet in the downlink data channel PDSCH, and after receiving the PDSCH, the UE switches back to the network energy-saving BWPC _ DL _3 immediately after receiving the PDSCH in the current time slot or after continuously receiving the PDSCH for the first time.

Fig. 3 illustrates BWP handover indication information of downlink signaling, where (a) first downlink signaling, (b) second downlink signaling, and (c) third downlink signaling. The concrete description is as follows:

(a) First downlink signaling. The base station adopts a first control channel format to carry the uplink BWP switching information indicated by the first downlink signaling, time-frequency resources of uplink data occupied by switching to BWP, and/or the number of continuous time slots.

In order not to increase the detection complexity of the terminal, the load budget of the DCI in the R15 protocol needs to be considered for the number of DCI sizes corresponding to the downlink control channel of the first downlink signaling. And aligning the DCI load of the second downlink signaling with the DCI format 1_0.

When the base station configures the same BWP-RNTIs for a plurality of terminals, the common first downlink signaling of the terminal equipment group carries BWP identification information to be switched by the plurality of terminals, and a first control channel format (DCI format) is defined to indicate uplink BWP switching.

The base station configures the DCI size of the first downlink signaling, and a starting point S of BWP switching information of the terminal indicated by each block (block) and an occupied length L thereof through the second configuration information, where the length L of the BWP switching information configured by the second configuration information may be different from each other for different terminals. Preferably, the second configuration information is RRC signaling configuration.

And indicating uplink BWP identification information to be switched by the corresponding terminal, time-frequency resource information of uplink data which can be sent by the terminal corresponding to the switched uplink BWP, and/or the number of time slots for data transmission in each block (block) in the first row of signaling. The indicated uplink BWP identifier may be one BWP or m BWPs to which the uplink BWP identifier is switched, the L length information may be one BWP ID or m BWP IDs, the terminal device receives the block information (start point S and length L) configured by the second configuration information, decodes the corresponding uplink BWP switching information in the first downlink signaling scrambled by the new RNTI and the time-frequency resource information of the scheduled uplink data, switches to the uplink BWP corresponding to the corresponding BWP identifier according to the uplink BWP switching information, and performs data transmission on the indicated uplink data time-frequency resource.

And after the terminal equipment is switched to the indicated BWP, performing data transmission on the indicated uplink data time-frequency resource, and immediately switching to the network energy-saving BWP after transmission. If the number of the time slots for data transmission is also indicated in the first downlink signaling, the terminal device switches to the network energy-saving BWP after data transmission is performed on a plurality of time slots.

The terminal device monitors a first control channel format in a public search space of the network energy-saving BWP to acquire a first downlink signaling, wherein the time domain position of the public search space is located in the first three symbols of a downlink control channel PDCCH. The terminal device does not perform any reception or transmission for the next symbol or the next slot after receiving the first downlink signaling until completing the BWP handover after the first time delay slot, where the first time delay depends on the capability of the terminal.

Or the terminal equipment delays the second time delay after the indicated time slot for transmitting the data and switches back to the energy-saving BWP.

b) And second downlink signaling. The size of the second downlink signaling is configured by the third configuration information of the base station, and the base station adopts a second control channel format to bear the second downlink signaling to indicate downlink BWP switching.

In order not to increase the detection complexity of the terminal, the load budget of the DCI in the R15 protocol needs to be considered for the number of DCI sizes corresponding to the downlink control channel of the second downlink signaling. And aligning the DCI load of the second downlink signaling with the DCI format 1_0.

When the base station configures the same BWP-RNTI for a plurality of terminals, the terminal equipment group shares the first downlink signaling to carry the downlink BWP identification information to be switched by the plurality of terminals, and defines a second control channel format (DCI format) to indicate the downlink BWP switching.

The base station configures the DCI size of the second downlink signaling, and a starting point S of the downlink BWP switching information of the terminal indicated by each block (block) and a length L occupied by the starting point S by using the third configuration information, where the length L of the downlink BWP switching information configured by the third configuration information may be different for different terminals. The preferred third configuration information is configured by RRC signaling.

And indicating downlink BWP identification information to be switched by a corresponding terminal, time-frequency resource information of downlink data occupied by data scheduling, and/or the number of time slots to be sent in each block (block) in the second downlink signaling, wherein the indicated BWP identification may be one downlink BWP to be switched or n downlink BWPs, and the L length information may be one downlink BWP ID or n downlink BWP IDs. The terminal device receives the block information (starting point S and length L) configured by the third configuration information, decodes the downlink BWP handover information corresponding to the second downlink signaling scrambled by the new RNTI, switches to the downlink BWP corresponding to the corresponding BWP identifier according to the indicated BWP handover information, and performs data reception on the indicated time-frequency resource of the downlink data, where the number of received time slots is 1 or the indicated number of time slots, and immediately switches back to the energy-saving BWP after receiving the data.

The second downlink signaling can realize dynamic switching of multiple TRPs, and the format of the group common signaling can reduce signaling overhead.

When the data of multiple base stations are sent, the base station uses the common second downlink signaling of the terminal equipment group for switching the BWP, so that on one hand, signaling overhead and terminal power consumption are saved, and on the other hand, even if some terminals do not support dynamic BWP switching, dynamic switching of multiple base stations can be realized, thereby realizing dynamic shutdown of a certain BWP, that is, shutdown of the base station configured with the BWP. For example, the bs 1 configures the first configuration information to indicate that BWPC _ DL _1 is in an active state for downlink data transmission of the ue, configures BWPC _ DL _2 is in a dormant state for multi-bs transmission, configures the first configuration information to indicate that BWPC _ DL _3 is used for downlink data transmission of the ue, and configures BWPC _ DL _4 is in a dormant state for multi-bs transmission. When the terminal device receives the first configuration information, which is BWPC _ DL _1 of the base station 1 and BWPC _ DL _3 of the base station 2, the terminal device transmits for the base station 1, and when the terminal device receives the first configuration information, which is BWPC _ DL _1 of the base station 1 and BWPC _ DL _4 of the base station 2, the terminal device transmits for the base station 1, and when the terminal device receives the first configuration information, which is BWPC _ DL _2 of the base station 1 and BWPC _ DL _3 of the base station 2, the terminal device transmits for the base station 2, thereby implementing dynamic opening and closing of frequency bandwidth resources transmitted by multiple base stations.

(c) And third downlink signaling. The third downlink signaling is configured by the fourth configuration information of the base station, and the base station adopts a third control channel format to carry the third downlink signaling to indicate uplink BWP switching and downlink BWP switching.

In order not to increase the detection complexity of the terminal, the load budget of the DCI in the R15 protocol needs to be considered for the number of DCI sizes corresponding to the downlink control channel of the third downlink signaling. Aligning a DCI payload of the third downlink signaling with a DCI format 1_0 size.

When the base station configures the same BWP-RNTI for a plurality of terminals, the common third downlink signaling of the terminal equipment group carries BWP identification information to be switched by the plurality of terminals, and defines a new DCI format to indicate BWP switching.

The base station configures the DCI size of the third downlink signaling, and the starting point S of the uplink BWP switching information of the terminal indicated by each block (block) and the occupied length L thereof through the fourth configuration information, where the length L of the uplink BWP switching information configured by the fourth configuration information may be different for different terminals. The preferred fourth configuration information is configured by RRC signaling.

Each block (block) in the third downlink signaling indicates uplink BWP identification information and downlink BWP identification information to be switched by the corresponding terminal, uplink data time-frequency resource information, downlink data time-frequency resource information and/or the number of data scheduling slots scheduled by the corresponding terminal, where the indicated BWP identification may be one BWP or m BWPs switched to the uplink BWP, one BWP or n BWPs of the downlink BWP, and the L length information may be one uplink BWP ID or m uplink BWP IDs, and one downlink BWP ID or n downlink BWP IDs. The terminal device receives the block information (starting point S and length L) configured by the fourth configuration information, decodes BWP switching information corresponding to the third downlink signaling scrambled by the new RNTI, switches to the uplink BWP corresponding to the uplink BWP identifier and the downlink BWP corresponding to the downlink BWP identifier according to the BWP switching information, and schedules the data on the indicated time-frequency resource, where the duration time is the indicated number of time slots.

Fig. 4 is a flowchart of an embodiment of the method of the present application for a network device.

A network energy saving dynamic bandwidth switching method proposed in a first aspect of the present application is used for a network device, and includes the following steps:

step 201, sending or receiving configuration information, where the configuration information is used to configure M uplink BWPs and/or N downlink BWPs.

The network device receives and determines configuration information, where the configuration information includes the first configuration information, and further may include the fifth configuration information.

Or, the network device determines and sends the configuration information to the terminal device. The first configuration information is sent by the network equipment to a cell terminal equipment group; and the fifth configuration information is sent by the network device to the target terminal device.

Step 202, receiving uplink service data by using the first uplink BWP, and sending downlink service data by using the first downlink BWP.

Receiving the upstream service data by using the first upstream BWP in response to the condition that the data volume of the upstream service data is smaller than a first set threshold;

and responding to the condition that the data volume of the downlink service data is smaller than a second set threshold value, and sending the downlink service data by using the first downlink BWP.

Step 203, sending a common downlink control signaling of the terminal device group on the first downlink BWP, where the signaling indicates the uplink BWP and/or downlink BWP information and the information of the data scheduling of the switched uplink BWP and/or downlink BWP.

The downlink signaling includes at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling. And determining and sending at least one of the first downlink signaling, the second downlink signaling and the third downlink signaling. And sending downlink signaling, and switching from the first uplink BWP and/or the first downlink BWP to other uplink and/or downlink BWPs.

Further, the downlink signaling indicates the time-frequency resources and the time slot numbers of the data scheduling of the other uplink BWPs after the switching, and/or the time-frequency resources and the time slot numbers of the data scheduling of the other downlink BWPs.

The network equipment receives the high-layer signaling and determines at least one type of configuration information, or determines at least one type of configuration information and sends the configuration information to the terminal equipment.

The configuration information includes at least one of the second configuration information, the third configuration information, and the fourth configuration information.

Step 204, automatically switching from other upstream and/or downstream BWPs to the first upstream BWP and/or the first downstream BWP.

Further, in response to the indicated end of data reception in the time-frequency resource of the uplink data, switching to the first uplink BWP; and/or switching to the first downlink BWP in response to the end of the data transmission in the indicated time-frequency resource of the downlink data.

Fig. 5 is a flowchart of an embodiment of a method of the present application for a terminal device.

A network energy-saving dynamic bandwidth switching method proposed in a first aspect of the present application is used for a terminal device, and includes the following steps:

step 301, receiving configuration information, where the configuration information is used to configure M uplink BWPs and/or N downlink BWPs.

The configuration information includes the first configuration information, and further the configuration information also includes the fifth configuration information.

Step 302, sending uplink service data by using the first uplink BWP, and receiving downlink service data by using the first downlink BWP.

Responding to the condition that the data volume of the uplink service data is smaller than a first set threshold value, and sending the uplink service data by using the first uplink BWP; and/or receiving the downlink service data by using the first downlink BWP in response to the condition that the data volume of the downlink service data is less than a second set threshold.

And 303, receiving a common downlink control signaling of the terminal device group, wherein the signaling indicates the uplink BWP and/or the downlink BWP switching.

The downlink signaling includes at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling. And the terminal equipment receives and determines at least one of the first downlink signaling, the second downlink signaling and the third downlink signaling. And the terminal equipment receives the first downlink signaling, the second downlink signaling or the third downlink signaling to acquire the switched BWP identification information. Switching from the first uplink BWP and/or the first downlink BWP to other uplink and/or downlink BWPs in response to the downlink signaling.

The terminal equipment receives the high-level signaling or the network equipment and determines at least one configuration information. The configuration information includes at least one of the second configuration information, the third configuration information, and the fourth configuration information.

The terminal receives a group common first downlink signaling and a group common second downlink signaling, or a group common third downlink signaling, which are used for the switched uplink BWP and downlink BWP.

The uplink BWP and downlink BWP identifiers indicated in the first downlink signaling, the second downlink signaling and the third downlink signaling are all terminal-specific BWP identifiers (BWP _ UE _ ID). And when the terminal receives the configured terminal-specific BWP identification, the downlink control signaling indicates that the BWP identification to be switched to is the terminal-specific BWP identification.

For example, the terminal device receives a first downlink signaling (user group control information), where the first downlink signaling indicates that the terminal device switches to one or M uplink BWPs, indicates a time-frequency resource of uplink data of the terminal device, and/or indicates a number of sustained timeslots, and a load size of the first downlink signaling indicates to the terminal that the base station configures second configuration information;

for another example, the terminal device receives a second downlink signaling to instruct the terminal device to switch to one or N BWPs of the N downlink BWPs, and time-frequency resource information of scheduled downlink data, and/or the number of sustained time slots, where the load size of the second downlink signaling indicates that the base station configures the third configuration information for the terminal, and the base station uses a second control channel format to carry the second downlink signaling to instruct uplink BWP switching;

for another example, the terminal device receives the third downlink signaling to instruct the terminal device to switch to one of M uplink BWPs or one of M uplink BWPs and one of N downlink BWPs or N downlink BWPs, and the time-frequency resource information of the scheduled uplink and/or downlink data, and/or the number of sustained slots. And the load size of the third downlink signaling is indicated to the terminal by the fourth configuration information configured by the base station, and the base station adopts a third control channel format to carry the third downlink signaling to indicate uplink BWP switching and downlink BWP switching.

Step 304, automatically switching from the other upstream and/or downstream BWPs to the first upstream BWP and/or the first downstream BWP.

After the data transmission is finished, the terminal automatically switches back to the first downlink BWP, and continuously monitors the downlink control information on the first downlink BWP. Further, in response to the end of the data transmission in the indicated time-frequency resource of the uplink data, switching from the terminal-specific BWP indicated by the first downlink signaling or the third downlink signaling to the first uplink BWP; and/or switching to the first downlink BWP from the terminal-specific BWP indicated by the second downlink signaling or the third downlink signaling in response to the end of receiving the data in the indicated time-frequency resource of the downlink data.

Fig. 6 is a diagram illustrating target terminal-specific BWP.

Further, a terminal-specific BWP is configured. The terminal device receives the fifth configuration information (RRC signaling) to configure m terminal-specific uplink BWPs and n terminal-specific downlink BWPs. The frequency range of the M terminal-dedicated upstream BWPs is within the frequency range of the M terminal device group common upstream BWPs, and the frequency range of the N terminal-dedicated downstream BWPs is within the frequency range of the N terminal device group common downstream BWPs. Each terminal-specific BWP is within the frequency range of the configured common M upstream BWPs and N downstream BWPs. Wherein M < = M, N < = N. This configuration method increases the flexibility of the terminal to configure BWP. In the figure, BWP _ UE _ # denotes the identification # of the terminal-specific BWP; BWPC _ # denotes the identification # of the common BWP.

The fifth configuration information configures the terminal-specific first downlink BWP and/or the terminal-specific first uplink BWP at the same time, where the frequency range of the terminal-specific first downlink BWP is within the first downlink BWP and the frequency range of the terminal-specific first uplink BWP is within the first uplink BWP. The fifth signaling is configured terminal-specifically, and information configured by each terminal may be different.

The terminal equipment can switch between the configured BWPs identified by the BWP _ UE _ ID in an RRC signaling reconfiguration mode. The terminal device may also implement switching between BWPs identified by the configured BWP _ UE _ ID based on a timeout method of a timer, when the timer expires, the terminal device returns from the currently active BWP to the terminal-specific first uplink (or downlink) BWP. And the terminal equipment switches among the BWPs identified by the configured BWP _ UE _ ID through a BWP field in the downlink control signaling. And if the activated BWP identified by the configured BWP _ UE _ ID is not configured with PRACH resources, the terminal equipment needs to be switched to a first uplink BWP special for the terminal to initiate RACH.

Fig. 7 is a schematic diagram of an embodiment of a network device.

An embodiment of the present application further provides a network device, where, using the method according to any embodiment of the present application, at least one module in the network device is configured to perform at least one of the following functions:

sending or receiving the first configuration information;

Switching to the first uplink BWP in response to the indicated end of data transmission in the time-frequency resource of the uplink data; and switching to the first downlink BWP in response to the indicated end of data transmission in the time-frequency resource of the downlink data.

In order to implement the foregoing technical solution, a network device 400 provided in the present application includes a network sending module 401, a network determining module 402, and a network receiving module 403 that are connected to each other.

The network sending module is configured to send at least one of the following information to the terminal device: the first configuration information, the second configuration information, the third configuration information, the fourth configuration information, the fifth configuration information, the first downlink signaling, the second downlink signaling, and the third downlink signaling. The network sending module is also used for sending downlink service data.

The network determining module is configured to determine a first uplink BWP, a first downlink BWP, M uplink BWPs, and/or N downlink BWPs; the apparatus is further configured to determine at least one of the first configuration information, the second configuration information, the third configuration information, and the fourth configuration information according to the first uplink BWP, the first downlink BWP, the M uplink BWPs, and/or the N downlink BWPs; and determining a first downlink signaling or a third downlink signaling according to the fact that the data volume of the uplink service data of the target terminal device reaches or exceeds the first set threshold, wherein the first downlink signaling or the third downlink signaling contains a terminal-specific BWP identifier for uplink BWP switching. And determining a second downlink signaling or a third downlink signaling according to the fact that the data volume of the downlink service data of the target terminal device reaches or exceeds the second set threshold, wherein the second downlink signaling or the third downlink signaling comprises a terminal-specific BWP identifier for downlink BWP switching. The network determining module is further configured to determine whether the uplink service data volume reaches or exceeds the first set threshold, and whether the downlink service data volume reaches or exceeds the second set threshold. The network determining module is further configured to determine a starting point and an information length of BWP identification information indicated by each block in the first downlink signaling, the second downlink signaling, and the third downlink signaling. The network determining module is further configured to determine the number of the sustained timeslots of the other uplink BWPs, which are operated by the target terminal device, outside the first uplink BWP, and the number of the sustained timeslots of the other downlink BWPs, which are operated by the target terminal device, outside the first downlink BWP. The network determining module is further configured to determine a frequency range allocated by the target terminal device in any one of the uplink BWPs or the downlink BWPs, and determine fifth configuration information.

The network receiving module is configured to receive at least one of first configuration information, second configuration information, third configuration information, fourth configuration information, and fifth configuration information from a high-level signaling. The network receiving module is further configured to receive uplink service data.

The specific method for implementing the functions of the network sending module, the network determining module, and the network receiving module is described in the embodiments of the methods of the present application, and is not described herein again.

Fig. 8 is a schematic diagram of an embodiment of a terminal device.

The present application further provides a terminal device, where, using the method of any embodiment of the present application, at least one module in the terminal device is configured to perform at least one of the following functions:

receiving the first configuration information;

Switching to the first uplink BWP in response to an indicated end of data transmission in time-frequency resources of the uplink data;

In order to implement the foregoing technical solution, the terminal device 500 provided in this application includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503 that are connected to each other.

The terminal receiving module is configured to receive downlink service data, and further, is further configured to receive at least one of the following information: the first configuration information, the second configuration information, the third configuration information, the fourth configuration information, the fifth configuration information, the first downlink signaling, the second downlink signaling, and the third downlink signaling.

The terminal determining module is used for determining first configuration information; determining a first uplink BWP, a first downlink BWP, M uplink BWPs and/or N downlink BWPs according to the first configuration information; determining at least one of the second configuration information, the third configuration information and the fourth configuration information; further preferably, the uplink BWP dedicated to the terminal is determined according to whether the data volume of the uplink service data of the terminal device reaches or exceeds the first set threshold; and determining the switched terminal-specific downlink BWP according to the fact that the data volume of the downlink service data of the terminal equipment reaches or exceeds the second set threshold. In the above preferred embodiment of the present application, the terminal determining module is further configured to determine whether the uplink service data amount reaches or exceeds the first set threshold, and whether the downlink service data amount reaches or exceeds the second set threshold.

Further, the terminal determining module is further configured to determine a starting point and an information length of BWP identification information indicated by each block in the first downlink signaling, the second downlink signaling, and the third downlink signaling. The terminal determining module is further configured to determine, according to the first downlink signaling, the number of the continuous timeslots of the other uplink BWPs in which the target terminal device operates outside the first uplink BWP, and the number of the continuous timeslots of the other downlink BWPs in which the target terminal device operates outside the first downlink BWP. The terminal determining module is further configured to determine, according to the fifth configuration information, a frequency range allocated by the terminal device in any one of the uplink BWPs or the downlink BWPs.

And the terminal sending module is used for sending uplink service data.

The specific method for implementing the functions of the terminal sending module, the terminal determining module and the terminal receiving module is as described in the method embodiments of the present application, and is not described herein again.

The terminal equipment can be mobile terminal equipment.

Fig. 9 is a schematic structural diagram of a network device according to another embodiment of the present invention. As shown, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, i.e. including a transmitter and a receiver, providing means for communicating with various other apparatus over a transmission medium. The wireless interface implements a communication function with the terminal device, and processes wireless signals through the receiving and transmitting devices, and data carried by the signals are communicated with the memory or the processor through the internal bus structure. The memory 603 contains a computer program that executes any of the embodiments of the present application, running or altered on the processor 601. When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described in detail herein.

Fig. 10 is a block diagram of a terminal device of another embodiment of the present invention. The terminal device 700 comprises at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in the terminal device 700 are coupled together by a bus system. A bus system is used to enable connection communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

The user interface 703 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen.

The memory 702 stores executable modules or data structures. The memory may have stored therein an operating system and an application program. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, and the like for implementing various application services.

In the embodiment of the present invention, the memory 702 contains a computer program for executing any of the embodiments of the present application, and the computer program runs or changes on the processor 701.

The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and combines the hardware to complete the steps of the above-described method. In particular, the computer-readable storage medium has a computer program stored thereon, which when executed by the processor 701 implements the steps of the method embodiments as described in any of the embodiments above.

The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method of the present application may be implemented by hardware integrated logic circuits in the processor 701 or by instructions in the form of software. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In a typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and a memory.

Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable 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 application therefore also proposes a computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the present application. For example, the

memory

603, 702 of the present invention may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM).

Based on the embodiments of fig. 7 to 10, the present application further provides a mobile communication system, which includes at least 1 embodiment of any terminal device in the present application and/or at least 1 embodiment of any network device in the present application.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus comprising the element.

It should be noted that, in the present application, "first", "second" \8230 \8230means "\8230", which is used to distinguish a plurality of objects having the same name, there is no sequential or size meaning unless specifically stated.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A network energy-saving dynamic bandwidth switching method is characterized by comprising the following steps:

and indicating the uplink BWP and/or downlink BWP switching and the data scheduling information on the switched uplink BWP and/or downlink BWP by using a terminal equipment group common downlink control signaling.

2. A network energy-saving dynamic bandwidth switching method is used for network equipment and is characterized by comprising the following steps:

the M uplink BWPs include a first uplink BWP, the first uplink BWP includes random access resources of a cell terminal device group, and the network device preferentially uses the first uplink BWP to complete all terminal device random access processes of the cell terminal device group;

and sending a common downlink control signaling of the terminal equipment group, wherein the signaling indicates the uplink BWP and/or downlink BWP switching.

3. A network energy-saving dynamic bandwidth switching method is used for terminal equipment and is characterized by comprising the following steps:

the N downlink BWPs include a first downlink BWP, where the first downlink BWP includes a downlink control channel resource of a cell terminal device group, and any terminal device of the cell terminal device group preferentially uses the first downlink BWP to receive downlink control information;

and receiving a common downlink control signaling of the terminal equipment group, wherein the signaling indicates the uplink BWP and/or downlink BWP switching.

4. The network energy saving dynamic bandwidth switching method according to any one of claims 1 to 3, comprising at least 1 step of:

responding to the condition that the data volume of the upstream service data is smaller than a first set threshold value, and transmitting the upstream service data by using the first upstream BWP;

and responding to the condition that the data volume of the downlink service data is smaller than a second set threshold value, and transmitting the downlink service data by using the first downlink BWP.

5. The network energy saving dynamic bandwidth switching method according to any one of claims 1 to 3, comprising at least 1 step of:

determining a first downlink signaling, wherein the first downlink signaling comprises indication information for switching from a first uplink BWP to any M of other uplink BWPs, and M = 1-M-1;

6. The network energy saving dynamic bandwidth switching method according to any one of claims 1 to 3,

the bandwidth of the first upstream BWP is smaller than other upstream BWPs, and/or the bandwidth of the first downstream BWP is smaller than other downstream BWPs.

7. The network power saving dynamic bandwidth switching method according to claim 5, comprising at least 1 of the following steps:

8. The network energy saving dynamic bandwidth switching method according to claim 5, comprising at least 1 of:

the first downlink signaling is further used for indicating time-frequency resources of uplink data and/or the number of time slots for switching uplink BWP continuously;

the second downlink signaling is also used for indicating time-frequency resources of downlink data and/or the number of time slots for switching downlink BWP continuously;

9. The network energy saving dynamic bandwidth switching method according to claim 5, comprising at least one of:

determining second configuration information, which is used for configuring a data structure of the first downlink signaling, and a start point and an information length of BWP identification information indicated in each block in the first downlink signaling;

determining third configuration information, where the third configuration information is used to configure a data structure of the second downlink signaling, and a starting point and an information length of BWP identification information indicated in each block in the second downlink signaling;

fourth configuration information is determined, which learns a data structure for configuring the third downlink signaling, and a start point and an information length of BWP identification information indicated in each block in the third downlink signaling.

10. The network energy saving dynamic bandwidth switching method according to any one of claims 1 to 3,

determining fifth configuration information, the fifth configuration information being for at least one of:

indicating within the first upstream BWP a frequency range dedicated to a target terminal device;

and indicating the frequency range dedicated to the target terminal device in any N downlink BWPs in the Nth downlink BWP.

11. The network power saving dynamic bandwidth switching method of claim 5,

scrambling downlink control signaling by using RNTI (radio network temporary identifier), wherein the RNTI is specially used for BWP (broadband wireless protocol) switched terminal equipment group common downlink control signaling;

the common downlink control signaling of the terminal equipment group comprises at least 1 of the first downlink signaling, the second downlink signaling and the third downlink signaling.

12. A network device for implementing the network energy-saving dynamic bandwidth switching method according to any one of claims 1 to 2 and 4 to 11,

at least one module in the network device for at least one of the following functions:

sending or receiving the first configuration information;

at least one of a first downlink signaling, a second downlink signaling and a third downlink signaling is sent;

13. A terminal device for implementing the network energy-saving dynamic bandwidth switching method according to any one of claims 1 and 3 to 11,

at least one module in the terminal device, configured to perform at least one of the following functions:

receiving the first configuration information;

receiving at least one of a first downlink signaling, a second downlink signaling and a third downlink signaling;

14. A communication device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing the steps of the network power saving dynamic bandwidth switching method according to any one of claims 1 to 11.

15. A computer readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the network power saving dynamic bandwidth switching method according to any one of claims 1 to 11.

16. A mobile communication system comprising at least 1 network device according to claim 12 and/or at least 1 terminal device according to claim 13.