A network energy saving dynamic bandwidth switching method and device

Abstract

The application discloses a network energy-saving dynamic bandwidth switching method, comprising the following steps: determining first configuration information, configuring M uplink BWPs and / or N downlink BWPs; the M uplink BWPs contain a first uplink BWP, 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 contain a first downlink BWP, the first downlink BWP contains downlink control channel resources of the cell terminal device group, and downlink control information is preferentially transmitted by using the first downlink BWP; terminal device group common downlink control signaling on the first downlink BWP is used to indicate uplink BWP and / or downlink BWP switching information and information of data scheduling of the uplink BWP and / or the downlink BWP after switching; after data transmission is completed, the terminal automatically switches back to the first downlink BWP and continues to monitor downlink control information on the first downlink BWP. The application also comprises a device for implementing the method. The application is used for realizing network energy-saving in a frequency domain.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a network energy-saving dynamic bandwidth switching method and device. Background Technology

[0002] Mobile communication networks are becoming increasingly dense, with more antennas, larger bandwidths, and more frequency bands, necessitating the development of new solutions to improve network energy efficiency. A significant portion of the energy consumption in mobile communication networks comes from the radio access network; the transmit and receive bandwidth of base stations has a substantial impact on their power consumption. Base station power consumption can be reduced by dynamically and adaptively scaling down the transmit and receive bandwidth.

[0003] 3GPP introduced BWP (Bandwidth-Based Video) technology for terminal energy saving. Terminals do not need to support the full carrier bandwidth; they only need to meet the minimum bandwidth requirements, which helps reduce terminal costs. When the terminal's traffic is low, it can switch to low-bandwidth operation to reduce terminal power consumption. The network dynamically configures different BWPs for terminals according to service needs.

[0004] However, from a network perspective, multiple BWPs introduce complexity, including BWP handover and resource configuration within each BWP, which is detrimental to network energy efficiency. Dividing the network into multiple smaller BWPs leads to redundancy and fragmentation of resources within the carrier bandwidth, hindering the peak bandwidth demands of high-bandwidth mobile services. Furthermore, the BWP handover mechanism requires the base station to individually instruct the downlink and / or uplink BWP handover of terminals residing in its cell. To instruct all terminals for BWP handover, a large number of uplink and downlink BWP handover instructions are needed. The BWP handover uses a terminal-specific downlink control signaling format, such as DCI format 0_1 / 0_2 / 1_1 / 1_2, which introduces downlink overhead and power consumption. Technical improvements are needed to avoid the overhead and power consumption caused by BWP handover instructions for each terminal.

[0005] In addition, when multiple base stations transmit data, the dynamic switching of base stations can save energy. However, if the dynamic switching of multiple base stations dedicated to the terminal is used to dynamically turn the base stations on and off, the following problems exist: When multiple base stations are configured with the same BWP but different CORESETPoolIndex to distinguish between different base stations, the switching of multiple base stations cannot achieve the effect of energy saving for the base stations. If multiple base stations are configured with different BWPs, although the effect of network energy saving can be achieved, since it is implemented by terminal-dedicated BWP switching signaling, frequent BWP switching will bring terminal signaling overhead and terminal power loss. Summary of the Invention

[0006] This application proposes a network energy-saving dynamic bandwidth switching method and device, which solves the problem of high energy consumption in mobile communication networks. In particular, it achieves network energy saving in the frequency domain by dynamically and adaptively reducing the base station transmit and receive bandwidth.

[0007] Firstly, a network energy-saving dynamic bandwidth switching method includes the following steps:

[0008] Determine the first configuration information, which is used to configure M uplink BWPs and / or N downlink BWPs;

[0009] The M uplink BWPs include a first uplink BWP, which contains random access resources for the cell terminal equipment group. All terminal equipment in the cell terminal equipment group preferentially use the first uplink BWP to complete the random access process.

[0010] Among the N downlink BWPs, there is a first downlink BWP. The first downlink BWP contains downlink control channel resources of the cell terminal equipment group. Between the network device and all terminal equipment of the cell terminal equipment group, the first downlink BWP is used preferentially to transmit downlink control information.

[0011] The uplink BWP and / or downlink BWP handover is indicated by the terminal equipment group common downlink control signaling.

[0012] The first aspect of this application proposes a network energy-saving dynamic bandwidth switching method for network devices, comprising the following steps:

[0013] Send or receive first configuration information, which is used to configure M uplink BWPs and / or N downlink BWPs;

[0014] The M uplink BWPs include a first uplink BWP, which contains random access resources for the cell terminal equipment group. The network device preferentially uses the first uplink BWP to complete the random access process of all terminal equipment in the cell terminal equipment group.

[0015] Among the N downlink BWPs, there is a first downlink BWP, which contains downlink control channel resources of the cell terminal equipment group. The network device preferentially uses the first downlink BWP to send downlink control information to all terminal equipment of the cell terminal equipment group.

[0016] The first downlink BWP sends a common downlink control signaling to the terminal equipment group, which instructs the uplink BWP and / or downlink BWP to switch.

[0017] The first aspect of this application proposes a network energy-saving dynamic bandwidth switching method for terminal equipment, comprising the following steps:

[0018] Receive first configuration information, which is used to configure M uplink BWPs and / or N downlink BWPs;

[0019] The M uplink BWPs include a first uplink BWP, which contains random access resources for the cell terminal equipment group. Any terminal equipment in the cell terminal equipment group preferentially uses the first uplink BWP to complete the random access process.

[0020] Among the N downlink BWPs, there is a first downlink BWP, which contains downlink control channel resources of the cell terminal equipment group. Any terminal equipment in the cell terminal equipment group shall preferentially use the first downlink BWP to receive downlink control information.

[0021] Receive common downlink control signaling for the terminal equipment group, which indicates the switching of the uplink BWP and / or downlink BWP.

[0022] In the implementation of the network energy-saving dynamic bandwidth switching method according to any one of the first aspects of this application, preferably, the bandwidth of the first uplink BWP is less than that of other uplink BWPs, and / or, the bandwidth of the first downlink BWP is less than that of other downlink BWPs.

[0023] In any embodiment of the network energy-saving dynamic bandwidth switching method according to the first aspect of this application, preferably, it includes at least one of the following steps:

[0024] In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is transmitted using the first uplink BWP;

[0025] In response to the condition that the amount of downlink service data is less than a second set threshold, the downlink service data is transmitted using the first downlink BWP.

[0026] More preferably, it includes at least one of the following steps:

[0027] Determine the first downlink signaling, which contains indication information for switching from the first uplink BWP to any m other uplink BWPs, where m = 1 to M-1;

[0028] Determine the second downlink signaling, which contains indication information for switching from the first downlink BWP to any n other downlink BWPs, where n = 1 to N-1;

[0029] The third downlink signaling is determined, which includes indication information for switching from the first uplink BWP to any m other uplink BWPs and from the first downlink BWP to any n other downlink BWPs, where m = 1 to M-1 and n = 1 to N-1.

[0030] Further, in response to the indication that data transmission in the time-frequency resources of the uplink data has ended, the system switches to the first uplink BWP; and / or, in response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

[0031] Furthermore, the method of the first aspect of this application includes at least one of the following schemes:

[0032] The first downlink signaling is also used to indicate the time-frequency resources of uplink data and / or switch the number of time slots for the continuous uplink BWP;

[0033] The second downlink signaling is also used to indicate the time and frequency resources of downlink data and / or switch the number of time slots for the downlink BWP to continue;

[0034] The third downlink signaling is also used to indicate the time and frequency resources of uplink and downlink data and / or the number of time slots for switching the uplink and downlink BWP.

[0035] Furthermore, the method of the first aspect of this application includes at least one of the following schemes:

[0036] Determine the second configuration information, which is used to configure the data structure of the first downlink signaling, and the start point and information length of the BWP identification information indicated in each block of the first downlink signaling;

[0037] The third configuration information is determined, which is used to configure the data structure of the second downlink signaling, and the start point and information length of the BWP identification information indicated in each block of the second downlink signaling;

[0038] The fourth configuration information is determined, which is used to configure the data structure of the third downlink signaling, and the start point and information length of the BWP identification information indicated in each block of the third downlink signaling.

[0039] More preferably, an embodiment of the first aspect of this application further includes: determining fifth configuration information, the fifth configuration information being used for at least one of the following:

[0040] The first uplink BWP indicates a frequency range dedicated to the target terminal device;

[0041] The first downlink BWP indicates a frequency range dedicated to the target terminal device;

[0042] Within the M uplink BWPs, the frequency range dedicated to the target terminal device is indicated within any m uplink BWPs;

[0043] The Nth downlink BWP indicates the frequency range dedicated to the target terminal device within any n downlink BWPs.

[0044] More preferably, the downlink control signaling is scrambled with RNTI, the RNTI being dedicated to the group common downlink control signaling for BWP handover; the terminal device group common downlink control signaling includes at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling.

[0045] Secondly, this application proposes a network device for implementing the network energy-saving dynamic bandwidth switching method described in any one of the first aspects of this application, wherein at least one module in the network device is used for at least one of the following functions:

[0046] Send or receive the first configuration information;

[0047] In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is received using the first uplink BWP;

[0048] In response to the condition that the amount of downlink service data is less than a second set threshold, the downlink service data is sent using the first downlink BWP;

[0049] Receive and determine at least one of the second configuration information, the third configuration information, the fourth configuration information, and the fifth configuration information; or determine and send at least one of the second configuration information, the third configuration information, the fourth configuration information, and the fifth configuration information.

[0050] Send a first downlink signaling message based on the second configuration information, or send a second downlink signaling message based on the third configuration information, or send a third downlink signaling message based on the fourth configuration information;

[0051] In response to the first downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated uplink BWP to receive uplink data; or, in response to the second downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated downlink BWP to transmit downlink data; or, in response to the third downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated uplink BWP to receive uplink data, and simultaneously switches to the time-frequency resources and time slots corresponding to the indicated downlink BWP to transmit downlink data.

[0052] In response to the termination of data transmission in the time-frequency resources of the indicated uplink data, switch to the first uplink BWP;

[0053] In response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

[0054] Thirdly, this application proposes a terminal device for implementing the network energy-saving dynamic bandwidth switching method described in any embodiment of the first aspect of this application, wherein at least one module in the terminal device is used for at least one of the following functions:

[0055] Receive the first configuration information;

[0056] In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is sent using the first uplink BWP;

[0057] In response to the condition that the amount of downlink service data is less than a second preset threshold, the downlink service data is received using the first downlink BWP;

[0058] Receive and determine at least one of the second configuration information, the third configuration information, the fourth configuration information, and the fifth configuration information;

[0059] Send a first downlink signaling message based on the second configuration information, or send a second downlink signaling message based on the third configuration information, or send a third downlink signaling message based on the fourth configuration information;

[0060] In response to the first downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated uplink BWP to transmit uplink data; or, in response to the second downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated downlink BWP to receive downlink data; or, in response to the third downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated uplink BWP to transmit uplink data, and simultaneously switches to the time-frequency resources and time slots corresponding to the indicated downlink BWP to receive downlink data.

[0061] In response to the termination of data transmission in the time-frequency resources of the indicated uplink data, switch to the first uplink BWP;

[0062] In response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

[0063] Fourthly, this application also proposes a communication device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any embodiment of the first aspect of this application.

[0064] Fifthly, this application also proposes a computer-readable medium on which a computer program is stored, which, when executed by a processor, implements the steps of the method described in any embodiment of the first aspect of this application.

[0065] Sixthly, this application also proposes a mobile communication system comprising at least one network device as described in any embodiment of the second aspect of this application and / or at least one terminal device as described in any embodiment of the third aspect of this application.

[0066] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0067] This invention patent proposes a method for saving energy in the network-side frequency domain. By configuring common BWP information for terminals and using common terminal group information for BWP switching, adaptive use of network-side frequency resources can be achieved. The designed scheme combines higher-layer configuration information and dynamic downlink control signaling to enable a single downlink signaling instruction for BWP switching of multiple terminals. Compared to BWP dynamic switching achieved through terminal-specific BWP configuration and dynamic downlink control signaling, this avoids the problem of redundancy and fragmentation of resources within the carrier bandwidth caused by the division of multiple small BWPs on the network side, thus promoting energy saving on the network side. It also reduces the signaling and power consumption of a large number of terminals performing BWP switching under network coverage. To save network energy, the gNB can operate with a narrower bandwidth when traffic is low, while using a larger bandwidth to send / receive data when larger data packets arrive. Attached Figure Description

[0068] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0069] Figure 1 This is a flowchart illustrating an embodiment of the method of this application;

[0070] Figure 2 A schematic diagram of a network energy-saving BWP;

[0071] Figure 3(a) BWP handover indication information for the first downlink signaling;

[0072] Figure 3(b) BWP handover indication information for the second downlink signaling;

[0073] Figure 3(c) BWP handover indication information for the third downlink signaling;

[0074] Figure 4 A schematic diagram of a dedicated BWP for the target terminal;

[0075] Figure 5 This is a flowchart illustrating an embodiment of the method of this application used in a network device;

[0076] Figure 6 This is a flowchart illustrating an embodiment of the method of this application used in a terminal device;

[0077] Figure 7 This is a schematic diagram of a network device implementation example;

[0078] Figure 8 This is a schematic diagram of an embodiment of the terminal device;

[0079] Figure 9This is a schematic diagram of the structure of a network device according to another embodiment of the present invention;

[0080] Figure 10 This is a block diagram of a terminal device according to another embodiment of the present invention. Detailed Implementation

[0081] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0082] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0083] Figure 1 This is a flowchart illustrating an embodiment of the method of this application.

[0084] A network energy-saving dynamic bandwidth switching method includes the following steps:

[0085] Step 101: Determine the configuration information, which is used to configure M uplink BWPs and / or N downlink BWPs;

[0086] To configure a dedicated energy-saving BWP, at least one of the following configuration information is determined and sent to the network device or terminal device via higher-layer signaling, or sent to the terminal device by the network device.

[0087] The first configuration information is used to configure M uplink BWPs and / or N downlink BWPs. Among the M uplink BWPs, there is a first uplink BWP, which contains random access resources for the cell terminal equipment group. The first uplink BWP is used preferentially to complete the random access process. Among the N downlink BWPs, there is a first downlink BWP, which contains downlink control channel resources for the cell terminal equipment group. The first downlink BWP is used preferentially to transmit downlink control information.

[0088] The first downlink BWP must include at least the frequency domain of CORESET0 and the downlink control channel, while other BWPs must include at least the downlink data channel; the first uplink BWP must be configured with at least random access resources. The first configuration information is configured using SIB1 or RRC signaling.

[0089] More preferably, a fifth configuration information is determined, the fifth configuration information being used for at least one of the following: indicating a frequency range dedicated to the target terminal device within the first uplink BWP; indicating a frequency range dedicated to the target terminal device within the first downlink BWP; indicating a frequency range dedicated to the target terminal device within any m uplink BWPs within the M uplink BWPs; indicating a frequency range dedicated to the target terminal device within any n downlink BWPs within the Nth downlink BWP.

[0090] As an example of this step, the first configuration information is broadcast signaling sent to all terminal devices, and the first configuration information is carried in SIB1 information.

[0091] In this step, the base station divides the entire downlink system bandwidth into N segments, identifies the BWP of the nth (n = 1, 2, ... N) frequency bandwidth as BWPC-DL-ID n, and broadcasts the configured N BWPs to all terminal devices through the first configuration information. The configuration information of the first configuration information includes the starting position of the N downlink BWPs, RB bandwidth and subcarrier spacing.

[0092] The base station divides the entire uplink system bandwidth into M segments, where the BWP of the m-th (m = 1, ..., M) frequency bandwidth segment is identified as BWPC-UL-ID m. The configured M BWPs are broadcast to all terminal devices via broadcast signaling using first configuration information, which includes the starting positions of the N uplink BWPs, RB bandwidth, and subcarrier spacing.

[0093] In another embodiment of this step, the first configuration information is sent to the terminal device as RRC signaling to indicate M uplink BWPs and N downlink BWPs. The RRC signaling is the terminal's common signaling. The first configuration information is RRC signaling, and the base station configures the terminal's common first configuration information to the terminal device. For example, in the first RRC signaling, the base station configures the information of N downlink BWPs to the terminal device in the initial downlink BWP configuration. In a non-standalone system (NSA), the first configuration information may be included in the initialDownlinkBWP signaling in the DownlinkConfigCommon configuration (3GPP TS 38.331). In a standalone system (SA), the first configuration information may be included in the initialDownlinkBWP signaling in the DownlinkConfigCommonSIB configuration.

[0094] As an example of the terminal device in this step, the terminal device receives first configuration information and configures the first downlink BWP as an energy-saving dedicated BWP. The first downlink BWP includes at least the CORESET0 frequency domain and / or the downlink control channel PDCCH, while other downlink BWPs include at least a downlink data channel. The first downlink BWP is an energy-saving dedicated BWP because, when the data packets of user terminals connected to the network device are small, in order to save network energy, the base station schedules all user terminals onto the first downlink BWP, which has a narrow bandwidth. Preferably, the first downlink BWP includes at least the CORESET0 frequency domain and / or the downlink control channel PDCCH for receiving broadcast channels and receiving downlink control signaling for BWP handover. BWPs other than the first downlink BWP are used by the network device to serve terminal devices that require sending / receiving larger data packets. Other BWPs can have larger bandwidths, and preferably, other BWPs only have downlink data channels. After the network device is configured with downlink control signaling for downlink BWP handover, the terminal device switches from the first downlink BWP to the indicated BWP to receive downlink data. After receiving the data, it immediately switches back to the first downlink BWP or immediately after the indicated time, so that the network device can operate on a narrower bandwidth as much as possible for network energy saving.

[0095] In another embodiment of the terminal device in this step, the terminal device receives first configuration information and configures the first uplink BWP as an energy-saving dedicated BWP. The first uplink BWP includes at least the configured random access resources. The terminal device initiates a random access procedure on the first uplink BWP. The scheduling of other uplink data of the terminal device is based on the uplink scheduling information indicated by the group common handover signaling carried on the downlink control channel received on the first downlink BWP, and uplink data is transmitted on the time slots of the uplink time-frequency resources of the indicated uplink BWP.

[0096] Step 102: Use the first uplink BWP and the first downlink BWP to transmit uplink and downlink service data.

[0097] In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is transmitted between the network device and the terminal devices of the terminal device group using the first uplink BWP.

[0098] In response to the condition that the amount of downlink service data is less than a second preset threshold, the downlink service data is transmitted between the network device and the terminal devices of the terminal device group using the first downlink BWP.

[0099] Step 103: Instruct the first uplink BWP and / or the first downlink BWP to switch using the terminal equipment group common downlink control signaling.

[0100] The terminal equipment is instructed to switch from the first uplink BWP and / or the first downlink BWP to other uplink and / or downlink BWPs via the common downlink control signaling of the terminal equipment group.

[0101] The common downlink control signaling of the terminal equipment group includes at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling.

[0102] Determine the first downlink signaling, which includes indication information for switching from the first uplink BWP to any m other uplink BWPs, where m = 1 to M-1; determine the second downlink signaling, which includes indication information for switching from the first downlink BWP to any n other downlink BWPs, where n = 1 to N-1; determine the third downlink signaling, which includes indication information for switching from the first uplink BWP to any m other uplink BWPs and from the first downlink BWP to any n other downlink BWPs, where m = 1 to M-1 and n = 1 to N-1.

[0103] Furthermore, the first downlink signaling is also used to indicate the time and frequency resources of uplink data and / or switch the number of time slots for the continuous uplink BWP; the second downlink signaling is also used to indicate the time and frequency resources of downlink data and / or switch the number of time slots for the continuous downlink BWP; the third downlink signaling is also used to indicate the time and frequency resources of uplink and downlink data and / or switch the number of time slots for the continuous uplink and downlink BWP.

[0104] Furthermore, in order to determine the format and content of the downlink signaling, at least one of the following configuration information is first determined and sent to the network device or terminal device by higher-layer signaling, or sent to the terminal device by the network device.

[0105] The system determines second configuration information, which is used to configure the data structure of the first downlink signaling and the start point and information length of the BWP identification information indicated in each block of the first downlink signaling; determines third configuration information, which is used to configure the data structure of the second downlink signaling and the start point and information length of the BWP identification information indicated in each block of the second downlink signaling; and determines fourth configuration information, which is used to configure the data structure of the third downlink signaling and the start point and information length of the BWP identification information indicated in each block of the third downlink signaling.

[0106] More preferably, the downlink control signaling is scrambled with RNTI, the RNTI being dedicated to the group common downlink control signaling for BWP handover; the terminal device group common downlink control signaling includes at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling.

[0107] It should be noted that the first, second, and third downlink signaling are shared downlink control signaling for the dynamic terminal device group, carrying downlink BWP handover identifiers for multiple terminals. By utilizing the shared downlink control signaling, the first, second, and third downlink signaling can share CRC bits, significantly reducing CRC overhead. Simultaneously, the shared downlink first downlink signaling carries BWP identifier information for handover of multiple terminals, which helps save energy.

[0108] It should also be noted that the first downlink signaling, the second downlink signaling, and the third downlink signaling are scrambled with a first identifier (new RNTI). The first identifier (new RNTI) is a newly defined RNTI (BWP-RNTI) used for BWP group common signaling handover, specifically for CRC scrambling of the downlink control channel PDCCH that transmits the signaling. When the terminal detects the PCCH scrambled with BWP-RNTI, it can determine that it is group common downlink control signaling for BWP handover.

[0109] Step 104: Automatically switch from other uplink and / or downlink BWPs to the first uplink BWP and / or the first downlink BWP.

[0110] Further, in response to the indication that data transmission in the time-frequency resources of the uplink data has ended, the system switches to the first uplink BWP; and / or, in response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

[0111] Figure 2 This diagram illustrates a network energy-saving BWP (Browser Window Device). Taking downlink BWP configuration as an example, as shown in the figure, the base station includes configuration information for N downlink BWPs in its first configuration information. This configuration information is identical for all terminals. The configuration information for each downlink BWP (BWPC_DL_1, BWPC_DL_2, ..., BWPC_DL_N) includes the downlink BWP's location, bandwidth, and subcarrier spacing. The bandwidth of the N downlink BWPs is configured according to the traffic volume supported by the terminal; different downlink BWPs support different traffic volumes. The network device configures different downlink BWPs for different terminals based on the terminal's adaptive traffic volume requirements. For example, when the terminal's traffic volume is low, the base station can configure the terminal to a low-bandwidth downlink BWP. The base station also configures one of the first downlink BWPs (BWPC_DL_3) in the first configuration information as a power-saving BWP. The active BWP of terminal device 1 is network power-saving BWPC_DL_3. When 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. After receiving the PDSCH, the UE switches back to network power-saving BWPC_DL_3 immediately or after receiving the PDSCH of the current time slot.

[0112] Figure 3 shows the BWP handover indication information for downlink signaling, where (a) is the first downlink signaling, (b) is the second downlink signaling, and (c) is the third downlink signaling. Detailed explanations are as follows:

[0113] (a) First downlink signaling. The base station uses a first control channel format to carry the first downlink signaling indicating uplink BWP handover information, as well as the time-frequency resources of uplink data occupied during the handover to the BWP, and / or the number of time slots for which the handover will last.

[0114] To avoid increasing the detection complexity of the terminal, the number of DCI sizes corresponding to the downlink control channel of the first downlink signaling should take into account the payload budget of the DCI in the R15 protocol. The DCI payload of the second downlink signaling should be aligned with the DCI format 1_0 size.

[0115] When a base station configures the same BWP-RNTI for multiple terminals, the common first downlink signaling of the terminal equipment group carries the BWP identification information of the multiple terminals to be switched, and defines a first control channel format (DCI format) to indicate the uplink BWP switching.

[0116] The base station configures the DCI size of the first downlink signaling through the second configuration information, as well as the starting point S and length L of the BWP handover information of the terminal indicated by each block. The length L of the BWP handover information configured in the second configuration information may be different for different terminals. Preferably, the second configuration information is RRC signaling configuration.

[0117] Each block in the first line of signaling indicates the uplink BWP identifier information to be switched to by the corresponding terminal, as well as the time-frequency resource information of the uplink data that the terminal corresponding to the switched uplink BWP can send, and / or the number of time slots for data transmission. The indicated uplink BWP identifier can be a BWP to be switched to or m BWPs, and the length information L can be a BWP ID or m BWP IDs. The terminal device receives the block information (start point S and length L) configured in the second configuration information, decodes the corresponding uplink BWP switching information in the first downlink signaling scrambled with 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 resources.

[0118] After switching to the indicated BWP, the terminal device transmits data on the indicated uplink data time-frequency resources, and immediately switches to the network-saving BWP after transmission. If the first downlink signaling also indicates the number of time slots for data transmission, the terminal device transmits data on multiple time slots before switching to the network-saving BWP.

[0119] The terminal device listens for the first control channel format within the common search space of the network energy-saving BWP and acquires the first downlink signaling. The time domain position of the common search space is located in the first three symbols of the downlink control channel (PDCCH). After receiving the first downlink signaling, the terminal device does not perform any reception or transmission in the next symbol or the next time slot until the BWP handover is completed after the first time delay, where the first time delay depends on the terminal's capabilities.

[0120] Alternatively, the terminal device may switch back to the energy-efficient BWP after a second delay following the indicated data transmission time slot.

[0121] b) Second downlink signaling. The size of the second downlink signaling is configured by the base station's third configuration information. The base station uses the second control channel format to carry the second downlink signaling to indicate downlink BWP handover.

[0122] To avoid increasing the detection complexity of the terminal, the number of DCI sizes corresponding to the downlink control channel of the second downlink signaling should take into account the payload budget of the DCI in the R15 protocol. The DCI payload of the second downlink signaling should be aligned with the DCI format 1_0 size.

[0123] When a base station configures the same BWP-RNTI for multiple terminals, the common downlink signaling of the terminal equipment group carries downlink BWP identification information for the multiple terminals to switch, and defines a second control channel format (DCI format) to indicate downlink BWP switching.

[0124] The base station configures the DCI size of the second downlink signaling through the third configuration information, as well as the starting point S and length L of the downlink BWP handover information of the terminal indicated by each block. The length L of the downlink BWP handover information configured by the third configuration information may be different for different terminals. Preferably, the third configuration information is configured by RRC signaling.

[0125] Each block in the second downlink signaling indicates the downlink BWP identifier information to be switched to by the corresponding terminal, the downlink data time-frequency resource information occupied by data scheduling, and / or the number of time slots to be transmitted. The indicated BWP identifier can be a downlink BWP to be switched to or n downlink BWPs, and the length information L can be a downlink BWPPID or n downlink BWP IDs. The terminal device receives the block information (start point S and length L) configured by the third configuration information, decodes the corresponding downlink BWP switching information in the second downlink signaling scrambled with the new RNTI, switches to the downlink BWP corresponding to the corresponding BWP identifier according to the indicated BWP switching information, and receives data on the indicated downlink data time-frequency resources. The number of received time slots is 1 or the indicated number of time slots. After receiving the data, it immediately switches back to the energy-saving BWP.

[0126] The second downlink signaling can enable dynamic switching of multiple TRPs, and the format of group common signaling can reduce signaling overhead.

[0127] When transmitting data from multiple base stations, the base stations use the common second downlink signaling of the terminal equipment group to switch BWPs. This saves signaling overhead and terminal power consumption. Furthermore, even if some terminals do not support dynamic BWP switching, they can still dynamically switch between multiple base stations, thus enabling the dynamic shutdown of a specific BWP, i.e., shutting down the base station configured with that BWP. For example, base station 1 configures the first configuration information to indicate that BWPC_DL_1 is active for downlink data transmission from the terminal equipment and configures BWPC_DL_2 to be in a dormant state for transmission from multiple base stations. Base station 2 configures the first configuration information to indicate that BWPC_DL_3 is used for downlink data transmission from the terminal equipment and configures BWPC_DL_4 to be in a dormant state for transmission from multiple base stations. When the terminal device receives the first configuration information as BWPC_DL_1 of base station 1 and BWPC_DL_3 of base station 2, the terminal device transmits for multiple base stations. When the terminal device receives the first configuration information as BWPC_DL_1 of base station 1 and BWPC_DL_4 of base station 2, the terminal device transmits for base station 1. When the terminal device receives the first configuration information as BWPC_DL_2 of base station 1 and BWPC_DL_3 of base station 2, the terminal device transmits for base station 2, thereby realizing the dynamic opening and closing of frequency bandwidth resources for multi-base station transmission.

[0128] (c) Third downlink signaling. The third downlink signaling is configured by the base station's fourth configuration information. The base station uses the third control channel format to carry the third downlink signaling to indicate uplink BWP handover and downlink BWP handover.

[0129] To avoid increasing the detection complexity of the terminal, the number of DCI sizes corresponding to the downlink control channel of the third downlink signaling should take into account the payload budget of the DCI in the R15 protocol. The DCI payload of the third downlink signaling should be aligned with the DCI format 1_0 size.

[0130] When a base station configures the same BWP-RNTI for multiple terminals, the common third downlink signaling of the terminal equipment group carries the BWP identification information of the multiple terminals to be switched, and defines a new DCI format to indicate the BWP switch.

[0131] The base station configures the DCI size of the third downlink signaling through the fourth configuration information, as well as the starting point S and length L of the uplink BWP handover information of the terminal indicated by each block. The length L of the uplink BWP handover information configured by the fourth configuration information can be different for different terminals. Preferably, the fourth configuration information is configured by RRC signaling.

[0132] Each block in the third downlink signaling indicates the uplink BWP identifier and downlink BWP identifier information to be switched to by the corresponding terminal, the uplink data time-frequency resource information and downlink data time-frequency resource information scheduled by the terminal, and / or the number of time slots for data scheduling. The indicated BWP identifier can be one or m uplink BWPs, and one or n downlink BWPs. The length L can be one or m uplink BWP IDs, and one or n downlink BWP IDs. The terminal device receives the block information (start point S and length L) configured in the fourth configuration information, decodes the corresponding BWP switching information in the third downlink signaling scrambled with 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 data on the indicated time-frequency resources for a duration equal to the indicated number of time slots.

[0133] Figure 4 This is a flowchart illustrating an embodiment of the method of this application used in a network device.

[0134] The first aspect of this application proposes a network energy-saving dynamic bandwidth switching method for network devices, comprising the following steps:

[0135] Step 201: Send or receive configuration information, which is used to configure M uplink BWPs and / or N downlink BWPs.

[0136] The network device receives and determines configuration information, which includes the first configuration information and may further include the fifth configuration information.

[0137] Alternatively, the network device determines and sends configuration information to the terminal device. The first configuration information is sent by the network device to the cell terminal device group; the fifth configuration information is sent by the network device to the target terminal device.

[0138] Step 202: Use the first uplink BWP to receive uplink service data and use the first downlink BWP to send downlink service data.

[0139] In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is received using the first uplink BWP;

[0140] In response to the condition that the amount of downlink service data is less than a second set threshold, the downlink service data is sent using the first downlink BWP.

[0141] Step 203: Send common downlink control signaling for the terminal equipment group on the first downlink BWP. The signaling indicates the switching of the uplink BWP and / or downlink BWP information and the data scheduling information of the uplink BWP and / or downlink BWP after the handover.

[0142] The downlink signaling includes at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling. At least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling is determined and transmitted. Downlink signaling is transmitted to switch from the first uplink BWP and / or the first downlink BWP to other uplink and / or downlink BWPs.

[0143] Furthermore, the downlink signaling indicates the time-frequency resources and number of time slots for data scheduling of other uplink BWPs after the handover, and / or the time-frequency resources and number of time slots for data scheduling of other downlink BWPs.

[0144] The network device receives signaling from higher layers and determines at least one type of configuration information, or determines at least one of the following configuration information and sends it to the terminal device.

[0145] The configuration information includes at least one of the second configuration information, the third configuration information, and the fourth configuration information.

[0146] Step 204: Automatically switch from other uplink and / or downlink BWPs to the first uplink BWP and / or the first downlink BWP.

[0147] Further, in response to the indication that data reception in the time-frequency resources of the uplink data has ended, the system switches to the first uplink BWP; and / or, in response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

[0148] Figure 5 This is a flowchart illustrating an embodiment of the method of this application used in a terminal device.

[0149] The first aspect of this application proposes a network energy-saving dynamic bandwidth switching method for terminal equipment, comprising the following steps:

[0150] Step 301: Receive configuration information, which is used to configure M uplink BWPs and / or N downlink BWPs.

[0151] The configuration information includes the first configuration information, and further includes the fifth configuration information.

[0152] Step 302: Use the first uplink BWP to send uplink service data and use the first downlink BWP to receive downlink service data.

[0153] In response to the condition that the amount of uplink service data is less than a first preset threshold, the uplink service data is transmitted using the first uplink BWP; and / or, in response to the condition that the amount of downlink service data is less than a second preset threshold, the downlink service data is received using the first downlink BWP.

[0154] Step 303: Receive common downlink control signaling for the terminal equipment group, the signaling indicating the switching of the uplink BWP and / or downlink BWP.

[0155] The downlink signaling includes at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling. The terminal device receives and determines at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling. The terminal device receives the first downlink signaling, the second downlink signaling, or the third downlink signaling to obtain the BWP identification information for handover. In response to the downlink signaling, it switches from the first uplink BWP and / or the first downlink BWP to other uplink and / or downlink BWPs.

[0156] The terminal device receives signaling from higher-layer signals or network devices and determines at least one type of configuration information. The configuration information includes at least one of the second configuration information, the third configuration information, and the fourth configuration information.

[0157] The terminal receives Group Common First Downlink Signaling and Group Common Second Downlink Signaling, or Group Common Third Downlink Signaling, for the switched uplink BWP and downlink BWP.

[0158] 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). When the terminal receives the configured terminal-specific BWP identifier, the downlink control signaling indicates the BWP identifier to be switched to, which is the terminal-specific BWP identifier.

[0159] For example, the terminal device receives a first downlink signaling (user group control information), which instructs the terminal device to switch to one or m uplink BWPs from M uplink BWPs, indicates the time and frequency resources of the uplink data of the terminal device, and / or the number of time slots that last, and the payload size of the first downlink signaling is indicated to the terminal by the base station configuring the second configuration information.

[0160] For example, the terminal device receives a second downlink signaling instruction to switch to one or n downlink BWPs among N downlink BWPs, along with the time-frequency resource information of the scheduled downlink data and / or the number of continuous time slots. The payload size of the second downlink signaling is indicated to the terminal by the third configuration information configured by the base station. The base station uses the second control channel format to carry the second downlink signaling instruction to switch uplink BWPs.

[0161] For example, the terminal device receives a third downlink signaling instruction instructing it to switch to one or more of the M uplink BWPs and one or more of the M downlink BWPs, as well as the time-frequency resource information of the scheduled uplink and / or downlink data, and / or the number of time slots in duration. The payload size of the third downlink signaling is indicated to the terminal by the base station's fourth configuration information, and the base station uses a third control channel format to carry the third downlink signaling instruction for uplink BWP handover and downlink BWP handover.

[0162] Step 304: Automatically switch from other uplink and / or downlink BWPs to the first uplink BWP and / or the first downlink BWP.

[0163] After data transmission is completed, the terminal automatically switches back to the first downlink BWP and continues to listen for downlink control information on the first downlink BWP. Further, in response to the indication that data transmission in the time-frequency resources of the uplink data has ended, the terminal switches from the terminal-dedicated BWP indicated by the first downlink signaling or the third downlink signaling to the first uplink BWP; and / or, in response to the indication that data reception in the time-frequency resources of the downlink data has ended, the terminal switches from the terminal-dedicated BWP indicated by the second downlink signaling or the third downlink signaling to the first downlink BWP.

[0164] Figure 6 A schematic diagram of a dedicated BWP for the target terminal.

[0165] Furthermore, the terminal-specific BWPs are configured. The terminal device receives 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-specific uplink BWPs is within the frequency range of the common uplink BWPs of the M terminal device groups, and the frequency range of the n terminal-specific downlink BWPs is within the frequency range of the common downlink BWPs of the N terminal device groups. Each terminal-specific BWP is within the frequency range of the already configured common M uplink BWPs and N downlink BWPs. Where m <= M, n <= N. This configuration method increases the flexibility of terminal BWP configuration. In the figure, BWP_UE_# represents the identifier # of the terminal-specific BWP; BWPC_# represents the identifier # of the common BWP.

[0166] The fifth configuration information configures both a terminal-specific first downlink BWP and / or a terminal-specific first uplink BWP. 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. This fifth signaling is a terminal-specific configuration, and the configuration information can be different for each terminal.

[0167] Terminal devices can switch between BWPs identified by the configured BWP_UE_ID via RRC signaling reconfiguration. Alternatively, terminal devices can switch between BWPs identified by the configured BWP_UE_ID based on a timer timeout. When the timer expires, the terminal device returns from the currently active BWP to the terminal-dedicated first uplink (or downlink) BWP. Terminal devices switch between BWPs identified by the configured BWP_UE_ID using the BWP field in the downlink control signaling. If the terminal device does not have PRACH resources configured on the active BWP identified by the configured BWP_UE_ID, it needs to switch to the terminal-dedicated first uplink BWP to initiate RACH.

[0168] Figure 7 This is a schematic diagram of a network device implementation.

[0169] This application also proposes a network device, wherein at least one module of the network device, using the method of any embodiment of this application, performs at least one of the following functions:

[0170] Send or receive the first configuration information;

[0171] In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is received using the first uplink BWP;

[0172] In response to the condition that the amount of downlink service data is less than a second set threshold, the downlink service data is sent using the first downlink BWP;

[0173] Receive and determine at least one of the second configuration information, the third configuration information, the fourth configuration information, and the fifth configuration information; or determine and send at least one of the second configuration information, the third configuration information, the fourth configuration information, and the fifth configuration information.

[0174] Send a first downlink signaling message based on the second configuration information, or send a second downlink signaling message based on the third configuration information, or send a third downlink signaling message based on the fourth configuration information;

[0175] In response to the first downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated uplink BWP to receive uplink data; or, in response to the second downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated downlink BWP to transmit downlink data; or, in response to the third downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated uplink BWP to receive uplink data, and simultaneously switches to the time-frequency resources and time slots corresponding to the indicated downlink BWP to transmit downlink data.

[0176] In response to the indication that data transmission in the time-frequency resources of the uplink data has ended, the system switches to the first uplink BWP; in response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

[0177] To implement the above technical solution, this application proposes a network device 400, which includes a network transmitting module 401, a network determining module 402, and a network receiving module 403 that are interconnected.

[0178] The network sending module is used to send at least one of the following information to the terminal device: first configuration information, second configuration information, third configuration information, fourth configuration information, fifth configuration information, first downlink signaling, second downlink signaling, and third downlink signaling. The network sending module is also used to send downlink service data.

[0179] The network determination module is configured to determine a first uplink BWP, a first downlink BWP, M uplink BWPs, and / or N downlink BWPs; and further configured to determine at least one of the first configuration information, second configuration information, third configuration information, and fourth configuration information based on the first uplink BWP, the first downlink BWP, the M uplink BWPs, and / or N downlink BWPs; and to determine a first downlink signaling or a third downlink signaling, which includes a terminal-specific BWP identifier for uplink BWP switching, based on the uplink service data volume of the target terminal device reaching or exceeding the first preset threshold. Based on the downlink service data volume of the target terminal device reaching or exceeding the second preset threshold, the module also determines a second downlink signaling or a third downlink signaling, which includes a terminal-specific BWP identifier for downlink BWP switching. The network determination module is further configured to determine whether the uplink service data volume reaches or exceeds the first preset threshold and whether the downlink service data volume reaches or exceeds the second preset threshold. The network determination module is also configured to determine the start point and information length of the BWP identifier information indicated by each block in the first downlink signaling, second downlink signaling, and third downlink signaling. The network determination module is further configured to determine the number of consecutive time slots in which the target terminal device operates in other uplink BWPs besides the first uplink BWP, and the number of consecutive time slots in which the target terminal device operates in other downlink BWPs besides the first downlink BWP. The network determination module is also configured to determine the frequency range allocated to the target terminal device in any uplink or downlink BWP, and to determine the fifth configuration information.

[0180] The network receiving module is configured to receive at least one of the following: first configuration information, second configuration information, third configuration information, fourth configuration information, and fifth configuration information from higher-layer signaling. The network receiving module is also configured to receive uplink service data.

[0181] The specific methods for implementing the functions of the network sending module, network determining module, and network receiving module are as described in the various method embodiments of this application, and will not be repeated here.

[0182] Figure 8 This is a schematic diagram of an embodiment of the terminal device.

[0183] This application also proposes a terminal device, wherein at least one module of the terminal device, using the method of any embodiment of this application, is configured to perform at least one of the following functions:

[0184] Receive the first configuration information;

[0185] In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is sent using the first uplink BWP;

[0186] In response to the condition that the amount of downlink service data is less than a second preset threshold, the downlink service data is received using the first downlink BWP;

[0187] Receive and determine at least one of the second configuration information, the third configuration information, the fourth configuration information, and the fifth configuration information;

[0188] Send a first downlink signaling message based on the second configuration information, or send a second downlink signaling message based on the third configuration information, or send a third downlink signaling message based on the fourth configuration information;

[0189] In response to the first downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated uplink BWP to transmit uplink data; or, in response to the second downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated downlink BWP to receive downlink data; or, in response to the third downlink signaling, the system switches to the time-frequency resources and time slots corresponding to the indicated uplink BWP to transmit uplink data, and simultaneously switches to the time-frequency resources and time slots corresponding to the indicated downlink BWP to receive downlink data.

[0190] In response to the termination of data transmission in the time-frequency resources of the indicated uplink data, switch to the first uplink BWP;

[0191] In response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

[0192] To implement the above technical solution, this application proposes a terminal device 500, which includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503 connected to each other.

[0193] The terminal receiving module is used to receive downlink service data, and further, it is also used to receive at least one of the following information: first configuration information, second configuration information, third configuration information, fourth configuration information, fifth configuration information, first downlink signaling, second downlink signaling, and third downlink signaling.

[0194] The terminal determination module is configured to determine first configuration information; determine a first uplink BWP, a first downlink BWP, M uplink BWPs, and / or N downlink BWPs based on the first configuration information; determine at least one of the second configuration information, third configuration information, and fourth configuration information; more preferably, determine a terminal-specific uplink BWP to be switched based on the amount of uplink service data of the terminal device reaching or exceeding the first preset threshold; determine a terminal-specific downlink BWP to be switched based on the amount of downlink service data of the terminal device reaching or exceeding the second preset threshold. In the preferred embodiments of this application, the terminal determination module is further configured to determine whether the amount of uplink service data reaches or exceeds the first preset threshold and whether the amount of downlink service data reaches or exceeds the second preset threshold.

[0195] Furthermore, the terminal determination module is also configured to determine the start point and information length of the BWP identification information indicated by each block in the first downlink signaling, the second downlink signaling, and the third downlink signaling. The terminal determination module is also configured to determine, based on the first downlink signaling, the number of consecutive time slots in which the target terminal device operates in other uplink BWPs besides the first downlink BWP, and the number of consecutive time slots in which the target terminal device operates in other downlink BWPs besides the first downlink BWP. The terminal determination module is also configured to determine, based on the fifth configuration information, the frequency range allocated to the terminal device in any uplink BWP or downlink BWP.

[0196] The terminal sending module is used to send uplink service data.

[0197] The specific methods for implementing the functions of the terminal sending module, the terminal determining module, and the terminal receiving module are as described in the various method embodiments of this application, and will not be repeated here.

[0198] The terminal device mentioned in this application may refer to a mobile terminal device.

[0199] Figure 9A schematic diagram of a network device according to another embodiment of the present invention is shown. As shown, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. The wireless interface may consist of multiple components, including a transmitter and a receiver, providing a unit for communication with various other devices over a transmission medium. The wireless interface implements communication functions with the terminal device, processes wireless signals through receiving and transmitting devices, and the data carried by the signals is communicated with the memory or processor via an internal bus structure. The memory 603 contains a computer program that executes any embodiment of this application, and the computer program runs or modifies the processor 601. The memory, processor, and wireless interface circuit are connected via a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which will not be described in detail here.

[0200] Figure 10 This is a block diagram of a terminal device according to another embodiment of the present invention. The terminal device 700 includes 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 via a bus system. The bus system is used to implement communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

[0201] User interface 703 may include a display, keyboard, or clicking device, such as a mouse, trackball, touchpad, or touchscreen.

[0202] The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application programs include various applications, such as media players and browsers, used to implement various application functions.

[0203] In an embodiment of the present invention, the memory 702 contains a computer program that executes any embodiment of the present application, the computer program being run on or modified by the processor 701.

[0204] The memory 702 includes a computer-readable storage medium. The processor 701 reads the information in the memory 702 and, in conjunction with its hardware, completes the steps of the above-described method. Specifically, the computer-readable storage medium stores a computer program, which, when executed by the processor 701, implements the steps of the method embodiments described in any of the above embodiments.

[0205] The processor 701 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the method in this application can be completed by the integrated logic circuitry in the hardware of the processor 701 or by instructions in software form. The processor 701 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a readily available programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor.

[0206] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. In a typical configuration, the device of this application includes one or more processors (CPUs), an input / output user interface, a network interface, and memory.

[0207] Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0208] Therefore, this application also proposes a computer-readable medium storing a computer program that, when executed by a processor, implements the steps of the method described in any embodiment of this application. For example, the memory 603, 702 of the present invention may include non-permanent memory in the form of computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM.

[0209] based on Figures 7-10 In addition to the embodiments described herein, this application also proposes a mobile communication system comprising at least one embodiment of any terminal device described herein and / or at least one embodiment of any network device described herein.

[0210] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0211] It should also be noted that the terms "first", "second", etc. in this application are used to distinguish multiple objects with the same name, and unless otherwise specified, they have no meaning of order or size.

[0212] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A network energy-saving dynamic bandwidth switching method, characterized in that, Includes the following steps: Determine the first configuration information, which is used to configure M uplink BWPs and / or N downlink BWPs; The M uplink BWPs include a first uplink BWP, which contains random access resources for the cell terminal equipment group. All terminal equipment in the cell terminal equipment group preferentially use the first uplink BWP to complete the random access process. Among the N downlink BWPs, there is a first downlink BWP. The first downlink BWP contains downlink control channel resources of the cell terminal equipment group. Between the network device and all terminal equipment of the cell terminal equipment group, the first downlink BWP is used preferentially to transmit downlink control information. The bandwidth of the first uplink BWP is less than that of other uplink BWPs, and / or the bandwidth of the first downlink BWP is less than that of other downlink BWPs; The terminal equipment group common downlink control signaling is used to instruct all or part of the terminal equipment in a terminal equipment group to perform BWP handover; the terminal equipment group common downlink control signaling carries at least the following information: identification information of one or more target uplink BWPs to be switched and / or identification information of one or more target downlink BWPs, and time-frequency resource information of uplink data and / or downlink data scheduled on the resources corresponding to the target uplink BWPs and / or target downlink BWPs; When the uplink data transmission in the time-frequency resources of other uplink BWPs ends, switch to the first uplink BWP; When the data transmission in the time-frequency resources of other downlink BWPs ends, the system switches to the first downlink BWP; wherein, the other uplink BWPs are the uplink BWPs other than the first uplink BWP among the M uplink BWPs, and the other downlink BWPs are the downlink BWPs other than the first downlink BWP among the N downlink BWPs.

2. A network energy-saving dynamic bandwidth switching method, used in network equipment, characterized in that, Includes the following steps: Send or receive first configuration information, which is used to configure M uplink BWPs and / or N downlink BWPs; The M uplink BWPs include a first uplink BWP, which contains random access resources for the cell terminal equipment group. The network device preferentially uses the first uplink BWP to complete the random access process of all terminal equipment in the cell terminal equipment group. Among the N downlink BWPs, there is a first downlink BWP, which contains downlink control channel resources of the cell terminal equipment group. The network device preferentially uses the first downlink BWP to send downlink control information to all terminal equipment of the cell terminal equipment group. The bandwidth of the first uplink BWP is less than that of other uplink BWPs, and / or the bandwidth of the first downlink BWP is less than that of other downlink BWPs; Send a common downlink control signaling message for a terminal equipment group, which instructs all or some of the terminal equipment in a terminal equipment group to perform BWP handover; the common downlink control signaling message for a terminal equipment group carries at least the following information: identification information of one or more target uplink BWPs to be switched and / or identification information of one or more target downlink BWPs, and time-frequency resource information of uplink data and / or downlink data scheduled on the resources corresponding to the target uplink BWPs and / or target downlink BWPs; When the uplink data transmission in the time-frequency resources of other uplink BWPs ends, switch to the first uplink BWP; When the data transmission in the time-frequency resources of other downlink BWPs ends, the system switches to the first downlink BWP; wherein, the other uplink BWPs are the uplink BWPs other than the first uplink BWP among the M uplink BWPs, and the other downlink BWPs are the downlink BWPs other than the first downlink BWP among the N downlink BWPs.

3. A network energy-saving dynamic bandwidth switching method, used in terminal equipment, characterized in that, Includes the following steps: Receive first configuration information, which is used to configure M uplink BWPs and / or N downlink BWPs; The M uplink BWPs include a first uplink BWP, which contains random access resources for the cell terminal equipment group. Any terminal equipment in the cell terminal equipment group preferentially uses the first uplink BWP to complete the random access process. Among the N downlink BWPs, there is a first downlink BWP, which contains downlink control channel resources of the cell terminal equipment group. Any terminal equipment in the cell terminal equipment group shall preferentially use the first downlink BWP to receive downlink control information. The bandwidth of the first uplink BWP is less than that of other uplink BWPs, and / or the bandwidth of the first downlink BWP is less than that of other downlink BWPs; The terminal equipment group receives a common downlink control signaling, which instructs all or some of the terminal equipment in a terminal equipment group to perform BWP handover; the common downlink control signaling carries at least the following information: identification information of one or more target uplink BWPs to be switched and / or identification information of one or more target downlink BWPs, and time-frequency resource information of uplink data and / or downlink data scheduled on the resources corresponding to the target uplink BWPs and / or target downlink BWPs; The terminal device switches from the first downlink BWP to the indicated BWP to receive downlink data, and immediately or after the first indicated time after receiving the data, switches back to the first downlink BWP. When the uplink data transmission in the time-frequency resources of other uplink BWPs ends, switch to the first uplink BWP; Wherein, the other uplink BWPs are the uplink BWPs other than the first uplink BWP among the M uplink BWPs, and the other downlink BWPs are the downlink BWPs other than the first downlink BWP among the N downlink BWPs.

4. The network energy-saving dynamic bandwidth switching method as described in any one of claims 1 to 3, characterized in that, Includes at least one of the following steps: In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is transmitted using the first uplink BWP; In response to the condition that the amount of downlink service data is less than a second set threshold, the downlink service data is transmitted using the first downlink BWP.

5. The network energy-saving dynamic bandwidth switching method as described in any one of claims 1 to 3, characterized in that, Includes at least one of the following steps: Determine the first downlink signaling, which contains indication information for switching from the first uplink BWP to any m other uplink BWPs, where m = 1 to M-1; Determine the second downlink signaling, which contains indication information for switching from the first downlink BWP to any n other downlink BWPs, where n = 1 to N-1; Determine the third downlink signaling, which includes indication information for switching from the first uplink BWP to any m other uplink BWPs and from the first downlink BWP to any n other downlink BWPs, where m=1~M-1 and n=1~N-1.

6. The network energy-saving dynamic bandwidth switching method as described in any one of claims 1 to 3, characterized in that, When the timer expires, the system returns from the currently active BWP to the terminal-specific first uplink or downlink BWP.

7. The network energy-saving dynamic bandwidth switching method as described in claim 5, characterized in that, Includes at least one of the following steps: In response to the termination of data transmission in the time-frequency resources of the indicated uplink data, switch to the first uplink BWP; In response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

8. The network energy-saving dynamic bandwidth switching method as described in claim 5, characterized in that, Includes at least one of the following: The first downlink signaling is also used to indicate the time-frequency resources of uplink data and / or switch the number of time slots for the continuous uplink BWP; The second downlink signaling is also used to indicate the time-frequency resources of downlink data and / or the number of time slots for switching the duration of the downlink BWP; The third downlink signaling is also used to indicate the time and frequency resources of uplink and downlink data and / or the number of time slots for switching the uplink and downlink BWP.

9. The network energy-saving dynamic bandwidth switching method as described in claim 5, characterized in that, Includes at least one of the following: Determine the second configuration information, which is used to configure the data structure of the first downlink signaling, and the start point and information length of the BWP identification information indicated in each block of the first downlink signaling; The third configuration information is determined, which is used to configure the data structure of the second downlink signaling, and the start point and information length of the BWP identification information indicated in each block of the second downlink signaling; The fourth configuration information is determined, which is used to configure the data structure of the third downlink signaling, and the start point and information length of the BWP identification information indicated in each block of the third downlink signaling.

10. The network energy-saving dynamic bandwidth switching method as described in any one of claims 1 to 3, characterized in that, The fifth configuration information is determined, and the fifth configuration information is used for at least one of the following: The first uplink BWP indicates a frequency range dedicated to the target terminal device; The first downlink BWP indicates a frequency range dedicated to the target terminal device; Within the M uplink BWPs, the frequency range dedicated to the target terminal device is indicated within any m uplink BWPs; The Nth downlink BWP indicates the frequency range dedicated to the target terminal device within any n downlink BWPs.

11. The network energy-saving dynamic bandwidth switching method as described in claim 5, characterized in that, Downlink control signaling is scrambled with RNTI, which is dedicated to the common downlink control signaling of the terminal equipment group during BWP handover; The common downlink control signaling of the terminal equipment group includes at least one 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 1-2 and 4-11, characterized in that, At least one module in the network device is used for at least one of the following functions: Send or receive the first configuration information; In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is received using the first uplink BWP; In response to the condition that the amount of downlink service data is less than a second set threshold, the downlink service data is sent using the first downlink BWP; Send at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling; In response to the termination of data transmission in the time-frequency resources of the indicated uplink data, switch to the first uplink BWP; In response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

13. A terminal device for implementing the network energy-saving dynamic bandwidth switching method according to any one of claims 1, 3 to 11, characterized in that, At least one module in the terminal device is used for at least one of the following functions: Receive the first configuration information; In response to the condition that the amount of uplink service data is less than a first set threshold, the uplink service data is sent using the first uplink BWP; In response to the condition that the amount of downlink service data is less than a second preset threshold, the downlink service data is received using the first downlink BWP; Receive at least one of the first downlink signaling, the second downlink signaling, and the third downlink signaling; In response to the termination of data transmission in the time-frequency resources of the indicated uplink data, switch to the first uplink BWP; In response to the indication that data transmission in the time-frequency resources of the downlink data has ended, the system switches to the first downlink BWP.

14. A communication device, characterized in that, include: The memory, the processor, and the computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the network energy-saving dynamic bandwidth switching method as described in any one of claims 1 to 11.

15. A computer-readable medium storing a computer program that, when executed by a processor, implements the steps of the network energy-saving dynamic bandwidth switching method as described in any one of claims 1 to 11.

16. A mobile communication system comprising at least one network device as described in claim 12 and / or at least one terminal device as described in claim 13.

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