CN116800392A

CN116800392A - Wireless communication method, apparatus and storage medium

Info

Publication number: CN116800392A
Application number: CN202210255530.5A
Authority: CN
Inventors: 温金辉; 胡丽洁; 王飞; 刘亮; 李岩; 杨拓; 郑康
Original assignee: China Mobile Zijin Jiangsu Innovation Research Institute Co ltd; China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Zijin Jiangsu Innovation Research Institute Co ltd; China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2023-09-22

Abstract

The embodiment of the application provides a wireless communication method and device, which can effectively reduce the cost of network equipment when a transmitting antenna and/or a receiving antenna of the network equipment is turned off/on. The method comprises the following steps: the terminal equipment receives a wake-up signal sent by the network equipment under the condition that the number of the transmitting antennas and/or the receiving antennas is changed or is about to be changed; the wake-up signal comprises first indication information, wherein the first indication information is used for indicating at least one of the following: the parameter set changes; waking up the terminal equipment; the terminal device continues to sleep.

Description

Wireless communication method, apparatus and storage medium

Technical Field

The present application relates to the field of communication technology, and more particularly, to a wireless communication method, a terminal device, a network device, and a computer-readable storage medium.

Background

When a partial transmit/Receive (TX/RX) antenna on the base station side is turned off or on, all terminal devices (e.g., user devices) accessing the base station are affected. The impact here may include both cell-level and user equipment-level configurations. In the related art, the user equipment can be notified of the configuration change through the reconfiguration message, and the reconfiguration message needs to be sent to all affected user equipment in a short time, so that the system load is larger in a specific time period, and the cost is larger.

How to reduce the overhead of network equipment when the TX/RX antennas of the base station are turned off/on is a problem to be solved in the present application.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, network equipment, terminal equipment and a computer readable storage medium, wherein the network equipment effectively reduces the expenditure of the network equipment when a transmitting antenna and/or a receiving antenna are/is turned off/on.

In a first aspect, a wireless communication method is provided, including:

the terminal equipment receives a wake-up signal sent by the network equipment under the condition that the number of the transmitting antennas and/or the receiving antennas is changed or is about to be changed;

wherein the wake-up signal comprises first indication information, the first indication information is used for indicating at least one of the following:

the parameter set changes;

waking up the terminal equipment;

and the terminal equipment continues to sleep.

In a second aspect, a wireless communication method is provided, including:

the network equipment sends a wake-up signal to the terminal equipment under the condition that the number of the transmitting antennas and/or the receiving antennas is changed or is about to be changed; wherein the wake-up signal comprises first indication information, the first indication information is used for indicating at least one of the following:

The parameter set changes;

waking up the terminal equipment;

and the terminal equipment continues to sleep.

In a third aspect, a terminal device includes:

the terminal equipment is used for receiving wake-up signals sent by the network equipment under the condition that the number of the transmitting antennas and/or the receiving antennas is changed or is about to be changed;

the parameter set changes;

waking up the terminal equipment;

and the terminal equipment continues to sleep.

In a fourth aspect, a network device, comprising:

the network equipment is used for sending a wake-up signal to the terminal equipment under the condition that the number of the transmitting antennas and/or the receiving antennas is changed or is about to be changed; wherein the wake-up signal comprises first indication information, the first indication information is used for indicating at least one of the following:

the parameter set changes;

waking up the terminal equipment;

and the terminal equipment continues to sleep.

In a fifth aspect, a terminal device includes: the wireless communication system comprises a processor and a memory, wherein the memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the wireless communication method.

In a sixth aspect, a network device comprises: the wireless communication system comprises a processor and a memory, wherein the memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the wireless communication method.

In a seventh aspect, an embodiment of the present application provides a chip for implementing the above-mentioned wireless communication method.

Specifically, the chip includes: and a processor for calling and running the computer program from the memory, so that the device mounted with the chip executes the wireless communication method.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program that causes a computer to execute the above-described wireless communication method.

In a ninth aspect, an embodiment of the present application provides a computer program product including computer program instructions for causing a computer to perform the above-described wireless communication method.

In a tenth aspect, embodiments of the present application provide a computer program which, when run on a computer, causes the computer to perform the above-described wireless communication method.

Through the technical scheme, the terminal equipment receives the wake-up signal sent by the network equipment under the condition that the number of the transmitting antennas and/or the receiving antennas is changed or is about to be changed; the wake-up signal comprises first indication information, wherein the first indication information is used for indicating at least one of the following: waking up terminal equipment, continuing dormancy of the terminal equipment, and changing parameter sets; that is, in the embodiment of the present application, when at least part of the transmitting antennas and/or the receiving antennas are turned off/on, or are about to be turned off/on, the network device sends a wake-up signal to the terminal device, and the terminal device determines whether to wake up according to the wake-up signal; therefore, according to the wireless communication method provided by the embodiment of the application, the terminal equipment is awakened based on the awakening mechanism, and the terminal equipment only needs to wake up in a specific time period to monitor, and does not need to monitor periodically or continuously, so that the power consumption of the terminal equipment is reduced; meanwhile, the wake-up signal is based on the existing monitoring mechanism, so that additional overhead is not introduced, and the power consumption is low.

Drawings

Fig. 1 is a schematic block diagram of a wireless communication system provided by an embodiment of the present application;

fig. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application;

fig. 3 is a schematic flow chart of a second method of wireless communication provided by an embodiment of the present application;

fig. 4 is a schematic block diagram of a terminal device according to an embodiment of the present application;

FIG. 5 is a schematic block diagram of a network device provided by an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

FIG. 7 is a schematic block diagram of a chip provided by an embodiment of the present application;

fig. 8 is a schematic block diagram of a communication system provided by an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application.

As shown in fig. 1, communication system 100 may include a terminal device 110 and a network device 120. Network device 120 may communicate with terminal device 110 over the air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

It should be understood that embodiments of the present application are illustrated by way of example only with respect to communication system 100, and embodiments of the present application are not limited thereto. That is, the technical solution of the embodiment of the present application may be applied to various communication systems, for example: long term evolution (Long Term Evolution, LTE) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), internet of things (Internet of Things, ioT) systems, narrowband internet of things (Narrow Band Internet of Things, NB-IoT) systems, enhanced Machine-type-Type Communications (eMTC) systems, 5G communication systems, also known as New Radio (NR) communication systems, or future communication systems, etc.

In the communication system 100 shown in fig. 1, the network device 120 may be an access network device in communication with the terminal device 110. The access network device may provide communication coverage for a particular geographic area and may communicate with terminal devices 110 (e.g., user devices) located within the coverage area.

The network device 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a long term evolution (Long Term Evolution, LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, or a base station (gNB) in a NR system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 may be a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

Terminal device 110 includes, but is not limited to, any terminal device that employs a wired or wireless connection with network device 120 or other terminal devices.

For example, the terminal device 110 may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, an IoT device, a satellite handset, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handset with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.

The terminal Device 110 may be used for Device-to-Device (D2D) communication.

The wireless communication system 100 may further comprise a core network device 130 in communication with the base station, which core network device 130 may be a 5G core,5gc device, e.g. an access and mobility management function (Access and Mobility Management Function, AMF) device, further e.g. an authentication server function (Authentication Server Function, AUSF) device, further e.g. a user plane function (User Plane Function, UPF) device, further e.g. a session management function (Session Management Function, SMF) device. Optionally, the core network device 130 may also be a packet core evolution (Evolved Packet Core, EPC) device of the LTE network, for example a session management function+a data gateway (Session Management Function + Core Packet Gateway, smf+pgw-C) device of the core network. It should be appreciated that SMF+PGW-C may perform the functions performed by both SMF and PGW-C. In the network evolution process, the names of the core network devices may be changed, or new network entities may be formed by dividing the functions of the core network, which is not limited in the embodiment of the present application.

Communication may also be achieved by establishing connections between various functional units in the communication system 100 through a next generation Network (NG) interface.

For example, the terminal device establishes an air interface connection with the access network device through an NR interface, and is used for transmitting user plane data and control plane signaling; the terminal equipment can establish control plane signaling connection with AMF through NG interface 1 (N1 for short); an access network device, such as a next generation radio access base station (gNB), can establish a user plane data connection with a UPF through an NG interface 3 (N3 for short); the access network equipment can establish control plane signaling connection with AMF through NG interface 2 (N2 for short); the UPF can establish control plane signaling connection with the SMF through an NG interface 4 (N4 for short); the UPF can interact user plane data with the data network through an NG interface 6 (N6 for short); the AMF may establish a control plane signaling connection with the SMF through NG interface 11 (N11 for short); the SMF may establish a control plane signaling connection with the PCF via NG interface 7 (N7 for short).

Fig. 1 exemplarily illustrates one base station, one core network device, and two terminal devices, alternatively, the wireless communication system 100 may include a plurality of base station devices and each base station may include other number of terminal devices within a coverage area, which is not limited by the embodiment of the present application.

It should be noted that fig. 1 is only an exemplary system to which the present application is applicable, and of course, the method shown in the embodiment of the present application may be applicable to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. It should also be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B. It should also be understood that "corresponding" mentioned in the embodiments of the present application may mean that there is a direct correspondence or an indirect correspondence between the two, may mean that there is an association between the two, and may also be a relationship between an instruction and an indicated, configured, or the like. It should also be understood that "predefined" or "predefined rules" mentioned in the embodiments of the present application may be implemented by pre-storing corresponding codes, tables or other manners in which related information may be indicated in devices (including, for example, terminal devices and network devices), and the present application is not limited to the specific implementation thereof. Such as predefined may refer to what is defined in the protocol. It should be further understood that, in the embodiment of the present application, the "protocol" may refer to a standard protocol in the field of communications, and may include, for example, an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited by the present application.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following description describes related technologies of the embodiments of the present application, and the following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as alternatives, which all belong to the protection scope of the embodiments of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the application only and is not intended to be limiting of the application.

For the scheme about power saving at the network side in the first version Rel-18 of the fifth generation mobile communication technology evolution (5G-Advanced), the network side turns off part of TX/RX antennas in a specific scenario to save power consumption. When a portion of TX/RX antennas on the network side are turned off or on, configuration information of all terminal devices (e.g., UEs) accessing the network side needs to be updated in time. It should be noted that, since the TX/RX antenna is turned off or turned on in part on the network side does not occur frequently, if the UE monitors the information indicating the TX/RX antenna is turned off or turned on frequently, much unnecessary overhead is caused. Therefore, the UE is generally informed of the update configuration information in the following three ways. The first way is that the network side updates configuration information of UEs in a Primary Cell (PCell) by transmitting system information to the PCell operating on a Primary frequency band; the network side sends various time-frequency resources where the system information is located to the PCell in a broadcast mode, the network side informs the PCell when the system information is changed, and then UE in the PCell receives the changed system information on the configured time-frequency resources, and updates the configuration information according to the changed system information. The second way is that each UE in other cells working outside the main band at the network side sends a reconfiguration message, and the UE updates the configuration information according to the reconfiguration message. A third way is that the UE periodically listens to downlink control information (Downlink Control Information, DCI) of a group-common class for a group of UEs to determine whether the corresponding configuration information has changed; when the UE monitors the change, the configuration information is updated after a specific time offset.

However, in the first manner, since the system information is designed for the configuration change at the cell level, it is not possible to reflect the different configurations of each UE before and after the change of the TX/RX antenna at the network side; the system information update speed is low, the time delay is high, the rapid change related to the number of the antennas at the network side cannot be fed back in time, and the rapid response can not be realized when the antennas change; when the system message is changed, the system needs to frequently send the system message change message, and the system message change is carried by the paging message, the energy consumption of the network side and the terminal side is increased. In the second mode, because a reconfiguration message needs to be sent to all affected UEs in a short time, the system load is larger in a specific time period, the time delay is higher, the quick response can not be performed when the antenna changes, and more physical downlink control channel (Physical Downlink Control Channel, PDCCH)/physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) resources are occupied; and more UEs are affected by the network side configuration change, and the affected UEs are notified one by one that the efficiency is low. In the third mode, the DCI can only carry limited information, but the configuration to be modified before and after the change of the TX/RX antenna of the network side may be more, and the method is not suitable for transmitting on the DCI, that is, the method is only suitable for determining whether the TX/RX antenna of the network side is changed, but not for informing each UE of the configuration update before and after the change. Meanwhile, since the TX/RX antenna on or off of the network side part does not occur frequently, periodic monitoring of DCI may bring additional power consumption to the UE.

Fig. 2 is a flow chart of a wireless communication method according to an embodiment of the present application, as shown in fig. 2, the method is applied to the wireless communication system 100 shown in fig. 1, and the method includes:

step 201, the network device sends a wake-up signal to the terminal device in case the number of transmit antennas and/or receive antennas is changed or is about to be changed.

The wake-up signal comprises first indication information, wherein the first indication information is used for indicating at least one of the following:

the parameter set changes;

waking up the terminal equipment;

the terminal device continues to sleep.

In the embodiment of the application, in an achievable scene of sending the wake-up signal, the network device can send the wake-up signal to the terminal device under the condition of opening or closing part of physical antennas; for example, the network device turns on or off part of the transmitting antennas and/or receiving antennas, and in this case, in the case that the number of transmitting antennas and/or receiving antennas of the network device has changed, the network device determines all terminal devices affected by the change in the number of transmitting antennas and/or receiving antennas, and sends a Wake Up signal including the first indication information to each affected terminal device; wherein the first indication information is used for indicating at least one of the following: the parameter set changes, the terminal equipment is awakened, and the terminal equipment continues to sleep.

In another possible scenario of sending a wake-up signal, the network device may send the wake-up signal to the terminal device before turning on or turning off part of the physical antennas, i.e. in the case where the number of the part of the physical antennas is about to change; for example, the network device decides whether to turn on or off part of the transmitting antennas and/or the receiving antennas according to a specific service model; further, in case the network device detects that the number of transmit antennas and/or receive antennas is about to change according to a specific traffic model, the network device sends a wake-up signal to the terminal device. In this way, the network device may notify the terminal device to change the parameter set before turning off or turning on a part of the transmitting antenna and/or the receiving antenna, and then turn off or turn on a part of the transmitting antenna and/or the receiving antenna.

According to the two scenes of sending the wake-up signals, the network equipment can flexibly select proper sending time to send the wake-up signals to the terminal equipment, so that the flexibility of sending is improved, and more wireless communication scenes can be adapted.

In the embodiment of the application, the first indication information included in the wake-up signal can be used for indicating to wake-up the terminal equipment, can also be used for indicating the terminal equipment to continue to sleep, and can also be used for indicating the parameter set to change. That is, the application multiplexes the first indication information in the wake-up signal, and improves the utilization rate of the wake-up signal.

In the above two scenarios, the network device sends a wake-up signal carrying the first indication information in case the number of its own transmitting antennas and/or receiving antennas changes or is about to change. In view of the fact that the first indication information can indicate that the parameter set changes, the terminal device can timely learn that the configuration changes according to the first indication information in the wake-up signal. The first indication information can indicate to wake up the terminal equipment so as to timely perform subsequent information receiving, on one hand, support is provided for the terminal equipment to timely acquire the parameter set to be switched to, and on the other hand, the terminal equipment only needs to wake up in a specific period to monitor, periodic or continuous monitoring is not needed, and the power consumption of the terminal equipment can be reduced. In addition, since the first indication information is carried in the wake-up signal, that is, implemented by means of the existing wake-up mechanism, no additional overhead is introduced.

In the embodiment of the application, the terminal equipment continues to sleep, including the main communication interface of the terminal equipment is in a closed state; waking up the terminal device includes the main communication interface of the terminal device being in an active state or an intermittently active state.

In some embodiments, the wake-up signal comprises a signal that can be received and decoded by a wake-up radio frequency; the wake-up signal includes, but is not limited to, a wake-up frame, a sync frame, and a wake-up packet.

In some embodiments, the first indication information included in the wake-up signal may have various implementations, and exemplary, the first indication information may be short message indication information, where a bit state of the short message indication information includes a first state and a second state, where the first state is used to indicate that the wake-up terminal device or the indication parameter set is changed, and the second state is used to indicate that the terminal state continues to sleep; the first indication information may also be an nth bit in the short message, where n is a positive integer, i.e. the nth bit in the short message may be used to indicate that the wake-up terminal device or the parameter set changes, or may be used to indicate that the terminal device continues to sleep. That is, the present application characterizes the first indication information by multiplexing one bit, which improves the utilization rate of the wake-up signal and reduces the overhead.

Step 202, the terminal device receives a wake-up signal sent by the network device.

In the embodiment of the application, the network device sends the wake-up signal including the first indication information to the terminal device, and correspondingly, after the terminal device receives the wake-up signal including the first indication information, if the wake-up signal includes the first indication information for indicating to wake-up the terminal device, only the terminal device is required to be woken up. If the wake-up signal includes the first indication information for indicating the terminal device to continue to sleep, the terminal device continues to sleep. If the wake-up signal includes first indication information for indicating that the parameter set is changed, waking up the terminal device, and acquiring the parameter set to be switched in a specific search space.

The embodiment of the application discloses a wireless communication method, which comprises the following steps: the network equipment receives a wake-up signal sent by the network equipment under the condition that the number of the transmitting antennas and/or the receiving antennas is changed or is about to be changed; the wake-up signal comprises first indication information, wherein the first indication information is used for indicating at least one of the following: waking up terminal equipment, continuing dormancy of the terminal equipment, and changing parameter sets; that is, in the embodiment of the present application, when at least part of the transmitting antennas and/or the receiving antennas are turned off/on, or are about to be turned off/on, the network device sends a wake-up signal to the terminal device, and the terminal device determines whether to wake up according to the wake-up signal; therefore, according to the wireless communication method provided by the embodiment of the application, the terminal equipment is awakened based on the awakening mechanism, and the terminal equipment only needs to wake up in a specific time period to monitor, and does not need to monitor periodically or continuously, so that the power consumption of the terminal equipment is reduced; meanwhile, the wake-up signal is based on the existing monitoring mechanism, so that additional overhead is not introduced, and the power consumption is low.

Fig. 3 is a flow chart of a wireless communication method according to an embodiment of the present application, as shown in fig. 3, the method is applied to the wireless communication system 100 shown in fig. 1, and the method includes:

Step 301, in the case that the terminal device is in a radio resource control connection state, the network device establishes an RRCSetup message or a radio resource control RRC reconfiguration message through radio resource control, and configures parameter sets corresponding to different numbers of transmitting antennas and/or receiving antennas for different bandwidth portions BWP for the terminal device.

Wherein the parameter sets corresponding to the different BWP comprise parameter sets to which the terminal device is to be handed over.

In some embodiments, in a wireless communication system, the radio resource control (radio resource control, RRC) state of a terminal device includes three states: RRC CONNECTED state (rrc_connected), RRC deactivated dynamic (rrc_inactive), and RRC IDLE state (rrc_idle). When the terminal equipment is in an RRC connection state, the terminal equipment, the access network equipment and the core network equipment are connected, and when data arrives at the network, the data can be directly transmitted to the terminal equipment; when the terminal equipment is in RRC deactivation dynamic state, a link is established between the terminal equipment and the access network equipment as well as between the access network equipment, but the link between the terminal equipment and the access network equipment is released, at the moment, the terminal equipment and the access network equipment store the context of the terminal equipment, and when data needs to be transmitted, the access network equipment can quickly recover the link; when the terminal equipment is in an RRC idle state, no link is established between the terminal equipment and the access network equipment and between the terminal equipment and the core network equipment, and when data needs to be transmitted, the link from the terminal equipment to the access network equipment and the core network equipment needs to be established.

In the embodiment of the present application, a Bandwidth Part (BWP) is a plurality of sub-bandwidths obtained by dividing a high frequency band of a cell, where each sub-Bandwidth includes a certain system parameter set (numerology) characteristic. It is understood that the bandwidth part may be divided into three types, an initial bandwidth part (initial BWP), a default BWP, and an active BWP. Wherein, the initial BWP is used for the bandwidth part of the initial uplink access or the downlink access; active BWP refers to the portion of bandwidth in active state for high-speed data transmission; the default BWP is used for default configuration, and the UE rolls back to the default BWP for service after the active BWP is deactivated. The default state BWP may be equal to the initial state BWP when not configured. The default BWP may be an initial BWP or a BWP remaining after the initial BWP is removed.

In the embodiment of the application, under the condition that the terminal equipment is in a radio resource control connection state, the network equipment configures parameter sets corresponding to different numbers of transmitting antennas and/or receiving antennas for different BWPs for the terminal equipment through RRCSetup information or RCC reconfiguration information. It should be noted that each parameter set records configuration resources of BWP of different numbers of transmitting antennas and/or receiving antennas required for acquiring the network by the terminal device. The configuration resources include, but are not limited to, synchronization signal block (Synchronization Signal Block, SSB) resources, channel state information reference signal (Channel State Information Reference Signal, CSI-RS) resources, or sounding reference signal (Sounding Reference Signal, SRS) resources.

In some embodiments, in a case where the terminal device is in a radio resource Control connected state, the network device configures the terminal device with parameter sets corresponding to different numbers of transmit antennas and/or receive antennas for different BWP through a media access Control layer (Media Access Control, MAC) Control Element (CE) message.

Step 302, the network device sends parameter sets corresponding to different BWP to the terminal device.

In the embodiment of the present application, a network device configures a parameter set for each terminal device in advance, and then sends the parameter set to the terminal device, where the parameter set includes a plurality of parameter sets of different BWP, and each parameter set records a parameter set under the condition that the same BWP corresponds to different numbers of transmitting antennas and/or receiving antennas.

It should be noted that, since the configuration of the terminal device under the network device using different transmitting antennas and/or receiving antennas is sent to the terminal device in advance, when the transmitting antennas and/or receiving antennas in the network device change, the terminal device only needs to determine the parameter set to be switched, so as to avoid the problem that the network device sends a reconfiguration message to all affected terminal devices in a short time, resulting in a larger system load and higher time delay in a specific time period, and can not react quickly when the antennas change, and occupy more PDCCH/PDSCH resources.

In the embodiment of the application, the network equipment sends a message comprising parameter sets of different broadband parts to the terminal equipment, and designates the parameter set currently used by the terminal equipment in the message.

Step 303, the terminal device receives the RRCSetup message or the radio resource control RRC reconfiguration message established by the network device through radio resource control, and configures parameter sets under different numbers of transmitting antennas and/or receiving antennas for different BWPs for the terminal device.

Step 304, the network device sends a wake-up signal to the terminal device in case the number of transmit antennas and/or receive antennas is changed or is about to be changed.

the parameter set changes;

waking up the terminal equipment;

the terminal device continues to sleep.

In some embodiments, the wake-up signal is a Short Message (Short Message), and an nth bit in the Short Message is first indication information; wherein n is a positive integer. It should be noted that the size of the short message field is 8bits, and the content definition is shown in table 1.

TABLE 1 short message

Illustratively, any one of the 4 th to 8 th bits reserved in the short message is employed as the first indication information. That is, the value of any one of the 4 th to 8 th bits in the short message is used to indicate at least one of the following three cases: the parameter set changes; waking up the terminal equipment; the terminal device continues to sleep. In one achievable indication scenario, bit 5 is employed to indicate at least one of the following three cases: the parameter set changes; waking up the terminal equipment; the terminal device continues to sleep. Further, when the 5 th bit is 0, the method is used for indicating the terminal equipment to continue dormancy; when bit 5 is 1, it is used to indicate that the terminal device is awake and/or that the parameter set is changed. That is, the present application multiplexes the reserved bits in the existing short message, and uses any bit reserved in the short message, without modifying the signaling structure, and improves the service efficiency of signaling.

In some embodiments, the first indication information is a first DCI, a cyclic redundancy check (Cyclic Redundancy Check, CRC) of the first DCI being scrambled by a paging radio network temporary identity (Paging Radio Network Temporary Identifier, P-RNTI), wherein an mth bit of reserved bits in the scrambled first DCI format is the first indication information; wherein m is a positive integer. That is, the value of the mth bit in the first DCI is used to indicate at least one of the following three cases: the parameter set changes; waking up the terminal equipment; the terminal device continues to sleep. Illustratively, the first DCI employs the 6 th or 8 th bit reserved in the P-RNTI scrambled DCI format 1_0 for operation in a cell with shared spectrum channel access for indication. For example, bit 8 is used for at least one of instructing to wake up the terminal device, instructing to continue to sleep, and instructing to change the parameter set. Further, when the 8 th bit is 0, the method is used for indicating the terminal equipment to continue dormancy; when bit 8 is 1, it is used to indicate that the terminal device is awake and/or that the parameter set is changed. That is, the present application multiplexes reserved bits of the existing first DCI in which the CRC is scrambled by the P-RNTI, and uses any bit of the first DCI in which the CRC is scrambled by the P-RNTI, without modifying the signaling structure, thereby improving the signaling utilization efficiency.

Step 305, the terminal device receives a wake-up signal sent by the network device.

Step 306, the network device sends the second indication information to the terminal device.

Wherein the second indication information is used for indicating a parameter set to which the terminal device is to be switched.

In the embodiment of the present application, the second indication information is carried through the second DCI.

In the embodiment of the present application, if the wake-up signal received by the terminal device includes the first indication information for indicating to wake-up the terminal device, the wake-up terminal device monitors to receive the second indication information/the second DCI. If the wake-up signal received by the terminal device includes first indication information for indicating that the terminal device continues to sleep, the terminal device continues to sleep without monitoring or receiving the second indication information/the second DCI.

In a wireless communication scenario, a terminal device receives a wake-up signal, such as a short message or a first DCI, where first indication information in the wake-up signal is used to indicate that a parameter set changes, and when the terminal device is woken up, the terminal device monitors, and when a network device sends a second DCI to the terminal device, the terminal device monitors the second DCI, where the second DCI carries the parameter set to which the terminal device is to be switched. In other words, the application realizes the efficient transmission of the new configuration information to the terminal equipment and reduces the cost by a secondary notification mechanism and a wake-up and monitor mode.

In the embodiment of the application, the second indication information can also be called parameter set change notification, so that the terminal equipment is efficiently notified of the parameter set to be switched to.

In combination with the two scenarios of sending the wake-up signal, the network device may notify the terminal device to change the parameter set before turning off or turning on a part of the physical antennas, and after the terminal device receives the second indication information/the second DCI, the network device turns off or turns on the antennas again. The network device may also close or open a portion of the physical antennas first, and then notify the terminal device to change the parameter set, and determine the parameter set to be switched to after the terminal device receives the second indication information/the second DCI.

Step 307, the terminal device monitors the second DCI in the paging cycle.

In the embodiment of the present application, the second DCI is a group common DCI.

In the embodiment of the application, in the paging period, the terminal equipment monitors the group public DCI in a specific search space.

In the embodiment of the application, in a wireless communication network, paging of terminal equipment by the network is generally divided into two types, one type is used for notifying the terminal equipment in an RRC idle state to carry out random access through Paging (Paging) information, so that the terminal equipment enters an RRC connection state for subsequent data communication; another type is used to inform the terminal device of receiving system information through a short message.

In some embodiments, a terminal device listens for DCI of a group-common for a group of UEs in a UE-specific search space (UE Specific Search Space, USS) during a paging cycle. The DCI of the group-common of the group of UE at least carries second DCI of identification information of a parameter set to which the terminal equipment is switched.

Step 308, the terminal device determines a parameter set to be switched to based on the second DCI.

In the embodiment of the present application, for each serving cell of the terminal device, the second DCI includes a first field corresponding to the serving cell, where the first field is used to indicate a parameter set to which the terminal device is to be switched on the serving cell. That is, the terminal device rapidly determines the parameter set to be switched to according to the first field in the second DCI.

In the embodiment of the application, the terminal equipment determines the parameter set to be switched to, namely, the new parameter set based on the second DCI, the terminal equipment switches the current parameter set to the new parameter set, and the terminal equipment configures the configuration resource for the terminal equipment according to the configuration resource indicated in the new parameter set. In this way, the application indicates the parameter set to be switched by the terminal equipment by using the second DCI, and the terminal equipment configures resources according to the parameter set to be switched, so that the network equipment does not need to allocate the resources to the UE one by one, the UE can rapidly respond to the change of the transmitting antenna and/or the receiving antenna of the network equipment, and the time delay is short.

Step 309, the network device sends, to the terminal device, first indication information for indicating the terminal device to continue dormancy, outside the paging cycle.

In the embodiment of the application, after a period of time, for example, after N paging cycles, after the parameter set of the terminal device is successfully switched, the network device sends first indication information for indicating the terminal device to continue to sleep to the terminal device.

Step 310, the terminal device receives first indication information sent by the network device and used for indicating the terminal device to continue dormancy.

In the embodiment of the application, after the terminal equipment receives the indication information which is sent by the network equipment and is used for indicating the terminal equipment to continue to sleep, the terminal equipment continues to sleep so as to save the power consumption of the terminal equipment.

An embodiment of the present application provides a terminal device, which may be used to implement a wireless communication method provided in the embodiments corresponding to fig. 2 and fig. 3, and referring to fig. 4, the terminal device 110 includes:

a receiving module 401, configured to receive, by a terminal device, a wake-up signal sent by a network device when the number of transmitting antennas and/or receiving antennas changes or is about to change; the wake-up signal comprises first indication information, wherein the first indication information is used for indicating at least one of the following: the parameter set changes; waking up the terminal equipment; the terminal device continues to sleep.

In other embodiments of the present application, a wake-up signal is carried by a first downlink control information DCI, where a cyclic redundancy check CRC of the first DCI is scrambled by a paging radio network temporary identifier P-RNTI, where an mth bit in reserved bits in the scrambled first DCI format is a first indication information; wherein m is a positive integer.

In other embodiments of the present application, the wake-up signal is a short message, and the nth bit in the short message is the first indication information; wherein n is a positive integer.

In other embodiments of the present application, the receiving module 401 is configured to receive second indication information, where the second indication information is used to indicate a parameter set to which the terminal device is to be switched.

In other embodiments of the present application, the second indication information is carried by the second DCI.

In other embodiments of the present application, the first processing module 402 is configured to monitor the second DCI in the paging cycle by the terminal device.

In other embodiments of the present application, the second DCI is a group common DCI.

In other embodiments of the present application, for each serving cell of the terminal device, the second DCI includes a first field corresponding to the serving cell, where the first field is used to indicate a parameter set to which the terminal device is to be handed over on the serving cell.

In other embodiments of the present application, a receiving module 401 is configured to receive a parameter set under a different number of transmitting antennas and/or receiving antennas corresponding to different bandwidth portions BWP configured for a terminal device, where the network device sent by the network device establishes an RRCSetup message or a radio resource control RRC reconfiguration message through radio resource control; wherein the different BWP corresponding parameter sets comprise parameter sets to which the terminal device is to be handed over.

The description of the apparatus embodiments above is similar to that of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the apparatus of the present application, please refer to the description of the embodiments of the method of the present application.

It should be noted that, in the embodiment of the present application, if the above-mentioned test data generating method is implemented in the form of a software functional module, and sold or used as a separate product, the test data generating method may also be stored in a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or partly contributing to the related art, embodied in the form of a software product stored in a storage medium, including several instructions for causing a terminal device to execute all or part of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, an optical disk, or other various media capable of storing program codes. Thus, embodiments of the application are not limited to any specific combination of hardware and software.

An embodiment of the present application provides a network device, which may be used to implement a wireless communication method provided in the embodiments corresponding to fig. 2 and fig. 3, and referring to fig. 5, the network device 120 includes:

a sending module 501, configured to send a wake-up signal to a terminal device when the number of transmitting antennas and/or receiving antennas changes or is about to change by the network device; the wake-up signal comprises first indication information, wherein the first indication information is used for indicating at least one of the following: the parameter set changes; waking up the terminal equipment; the terminal device continues to sleep.

In other embodiments of the present application, the sending module 501 is configured to send second indication information to the terminal device, where the second indication information is used to indicate a parameter set to which the terminal device is to be switched.

In other embodiments of the present application, the second processing module 502 is configured to, when the terminal device is in a radio resource control connection state, establish an RRCSetup message or a radio resource control RRC reconfiguration message by the network device through radio resource control, and configure parameter sets corresponding to different numbers of transmitting antennas and/or receiving antennas for different bandwidth portions BWP for the terminal device; wherein, the parameter sets corresponding to different BWPs comprise parameter sets to which the terminal equipment is to be switched;

a sending module 501, configured to send, by the network device, parameter sets corresponding to different BWP to the terminal device.

In other embodiments of the present application, the sending module 501 is configured to send, by the network device, first indication information for instructing the terminal device to go on to sleep outside the paging cycle.

It should be noted that, in the embodiment of the present application, if the above-mentioned test data generating method is implemented in the form of a software functional module, and sold or used as a separate product, the test data generating method may also be stored in a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or partly contributing to the related art, embodied in the form of a software product stored in a storage medium, including several instructions for causing a terminal device to execute all or part of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a magnetic disk or an optical disk. Thus, embodiments of the application are not limited to any specific combination of hardware and software.

Fig. 6 is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application. The communication device may be a terminal device or a network device. The communication device 600 shown in fig. 6 comprises a first processor 610, which first processor 610 may call and run a computer program from a memory to implement the method in an embodiment of the application.

Optionally, as shown in fig. 6, the communication device 600 may further comprise a first memory 620. Wherein the first processor 610 may call and run a computer program from the first memory 620 to implement the method in the embodiment of the present application.

The first memory 620 may be a separate device independent of the first processor 610, or may be integrated into the first processor 610.

Optionally, as shown in fig. 6, the communication device 600 may further include a transceiver 630, and the first processor 610 may control the transceiver 630 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

The transceiver 630 may include a transmitter and a receiver, among others. Transceiver 630 may further include antennas, the number of which may be one or more.

Optionally, the communication device 600 may be specifically a network device according to the embodiment of the present application, and the communication device 600 may implement a corresponding flow implemented by the network device in each method according to the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 600 may be specifically a mobile terminal/terminal device according to an embodiment of the present application, and the communication device 600 may implement corresponding processes implemented by the mobile terminal/terminal device in each method according to the embodiment of the present application, which are not described herein for brevity.

Fig. 7 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 700 shown in fig. 7 includes a second processor 710, and the second processor 710 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 7, the chip 700 may further include a second memory 720. Wherein the second processor 710 may call and run a computer program from the second memory 720 to implement the method in the embodiment of the present application.

The second memory 720 may be a separate device from the second processor 710 or may be integrated into the second processor 710.

Optionally, the chip 700 may also include an input interface 730. The second processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The second processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 8 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in fig. 8, the communication system 800 includes a terminal device 110 and a network device 120.

The terminal device 110 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 120 may be used to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application 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 application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a ROM, a Programmable ROM (PROM), an Erasable Programmable EPROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

Claims

1. A method of wireless communication, comprising:

the parameter set changes;

waking up the terminal equipment;

and the terminal equipment continues to sleep.

2. The method according to claim 1, wherein the wake-up signal is carried by a first downlink control information, DCI, a cyclic redundancy check, CRC, of the first DCI being scrambled by a paging radio network temporary identity, P-RNTI, wherein an mth bit of reserved bits in the scrambled first DCI format is the first indication information; wherein m is a positive integer.

3. The method of claim 1, wherein the wake-up signal is a short message, and an nth bit in the short message is the first indication information; wherein n is a positive integer.

4. Method according to claim 1, characterized in that after the terminal device receives a wake-up signal transmitted by the network device in case of a change or to be changed in the number of transmit antennas and/or receive antennas, the method further comprises:

the terminal device receives second indication information, wherein the second indication information is used for indicating a parameter set to which the terminal device is to be switched.

5. The method of claim 4, wherein the second indication information is carried over a second DCI.

6. The method of claim 5, wherein the terminal device receives the second indication information, comprising:

and the terminal equipment monitors the second DCI in a paging period.

7. The method of claim 5 or 6, wherein the second DCI is a group common DCI.

8. The method of claim 5, wherein for each serving cell of the terminal device, the second DCI comprises a first field corresponding to the serving cell, the first field being used to indicate a set of parameters to which the terminal device is to be handed over on the serving cell.

9. The method according to any one of claims 1 to 6 or 8, further comprising:

Receiving a parameter set under different numbers of transmitting antennas and/or receiving antennas corresponding to different bandwidth parts BWP configured for the terminal equipment, wherein the network equipment establishes an RRCSetup message or a radio resource control RRC reconfiguration message through radio resource control;

wherein the different BWP corresponding parameter sets comprise parameter sets to which the terminal device is to be handed over.

10. A method of wireless communication, comprising:

the parameter set changes;

waking up the terminal equipment;

and the terminal equipment continues to sleep.

11. The method according to claim 10, wherein the wake-up signal is carried by a first downlink control information, DCI, a cyclic redundancy check, CRC, of the first DCI being scrambled by a paging radio network temporary identity, P-RNTI, wherein an mth bit of reserved bits in the scrambled first DCI format is the first indication information; wherein m is a positive integer.

12. The method of claim 10, wherein the wake-up signal is a short message, and an nth bit in the short message is the first indication information; wherein n is a positive integer.

13. Method according to claim 10, characterized in that after the network device has sent a wake-up signal to a terminal device in case the number of transmit antennas and/or receive antennas has changed or is about to change, the method further comprises:

and sending second indication information to the terminal equipment, wherein the second indication information is used for indicating a parameter set to which the terminal equipment is to be switched.

14. The method of claim 13, wherein the second indication information is carried over a second DCI.

15. The method of claim 14, wherein the second DCI is a group common DCI.

16. The method of claim 14, wherein for each serving cell of the terminal device, the second DCI includes a first field corresponding to the serving cell, the first field being used to indicate a set of parameters to which the terminal device is to be handed over on the serving cell.

17. The method according to any one of claims 10 to 16, further comprising:

when the terminal equipment is in a radio resource control connection state, the network equipment establishes RRCSetup information or radio resource control RRC reconfiguration information through radio resource control, and configures parameter sets corresponding to different numbers of transmitting antennas and/or receiving antennas for different bandwidth parts BWP for the terminal equipment; wherein the parameter sets corresponding to different BWP comprise parameter sets to which the terminal device is to be switched;

the network device sends the parameter sets corresponding to different BWP to the terminal device.

18. The method according to any one of claims 10 to 16, further comprising:

and the network equipment sends the first indication information for indicating the terminal equipment to continue to sleep outside the paging cycle.

19. A terminal device, comprising:

The parameter set changes;

waking up the terminal equipment;

and the terminal equipment continues to sleep.

20. A network device, comprising:

the parameter set changes;

waking up the terminal equipment;

and the terminal equipment continues to sleep.

21. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory for performing the method according to any of claims 1 to 9.

22. A network device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 10 to 18.

23. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 9.

24. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 10 to 18.