WO2021056383A1

WO2021056383A1 - Wireless communication method, terminal device and network device

Info

Publication number: WO2021056383A1
Application number: PCT/CN2019/108396
Authority: WO
Inventors: 徐伟杰
Original assignee: Oppo广东移动通信有限公司; Oppo广东移动通信有限公司深圳分公司
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2021-04-01
Also published as: CN113632548B; CN113632548A

Abstract

A wireless communication method, a terminal device and a network device. Said method comprises: a terminal device receiving a group common physical downlink control channel (PDCCH), the group common PDCCH comprising timing deviation indication information; and the terminal device determining target timing deviation information according to the timing deviation indication information.

Description

Wireless communication method, terminal equipment and network equipment

Technical field

The embodiments of the present application relate to the field of communications, and in particular to a wireless communication method, terminal device, and network device.

Background technique

In the New Radio (NR) system, the terminal device can receive the downlink control information (Downlink Control Information, DCI) for scheduling the Physical Uplink Shared Channel (PUSCH) in the time slot n, and then can receive the downlink control information (DCI) in the time slot n. n'+K2 transmits the PUSCH, and the time slot n'can be determined according to the subcarrier interval between the PUSCH and the physical downlink control channel (Physical Downlink Control Channel, PDCCH), where K2 is the timing deviation between the PUSCH and the PDCCH.

In terrestrial cellular communication, the communication radius is usually small. Therefore, the path transmission delay of the uplink and downlink communication is short, and therefore, the influence on the timing deviation K2 is not large. In the NR system, consider the use of satellite communication to provide communication services to the terminal equipment. The communication radius of satellite communication is large and the path transmission delay is large, which will affect the timing deviation K2. In this case, how to determine the timing deviation Ensuring the correct transmission of data is a problem that needs to be solved urgently.

Summary of the invention

The embodiments of the present application provide a wireless communication method, terminal equipment and network equipment, which can dynamically notify the terminal equipment of the timing deviation through the group public PDCCH.

In a first aspect, a wireless communication method is provided, including: a terminal device receives a group public physical downlink control channel PDCCH, the group public PDCCH includes timing deviation indication information; the terminal device determines according to the timing deviation indication information Target timing deviation information.

In a second aspect, a wireless communication method is provided, including: a network device sends a group public physical downlink control channel PDCCH to a terminal device, the group public PDCCH includes timing deviation indication information, and the timing deviation indication information is used for the The terminal device determines the target timing deviation information.

In a third aspect, a wireless communication method is provided, including: a terminal device receives timing deviation indication information, wherein the timing deviation indication information corresponds to a reference subcarrier interval; and the terminal device is based on the timing deviation indication information and the timing deviation indication information. Determining the target timing deviation information based on the subcarrier interval currently used by the terminal device.

In a fourth aspect, a terminal device is provided, which is used to execute the foregoing first aspect or the method in any possible implementation manner of the first aspect. Specifically, the terminal device includes a unit for executing the method in the first aspect or any possible implementation of the first aspect, or includes a unit for executing the third aspect or any possible implementation of the third aspect. The unit of the method in the mode.

In a fifth aspect, a network device is provided, which is configured to execute the foregoing second aspect or any possible implementation of the second aspect. Specifically, the network device includes a unit for executing the foregoing second aspect or the method in any possible implementation manner of the second aspect.

In a sixth aspect, a terminal device is provided. The terminal device includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect or its implementation manners, or the method in the third aspect or its implementation manners.

In a seventh aspect, a network device is provided, and the network device includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned second aspect or each implementation manner thereof.

In an eighth aspect, a chip is provided for implementing any one of the above-mentioned first to third aspects or the method in each of its implementation manners.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first to third aspects or any of the implementations thereof method.

In a ninth aspect, a computer-readable storage medium is provided for storing a computer program that enables a computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.

In a tenth aspect, a computer program product is provided, which includes computer program instructions that cause a computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.

In an eleventh aspect, a computer program is provided, which, when run on a computer, causes the computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.

Based on the above technical solutions, network equipment using Group-common PDCCH can realize more dynamic notification of timing deviation information to terminal equipment, thereby being able to adapt to rapid changes in the distance and angle between satellites and terminal equipment in satellite communication scenarios.

Description of the drawings

Fig. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.

Figure 2 is a schematic diagram of the distance between terminal equipment and satellites in different locations.

FIG. 3 is a schematic diagram of a wireless communication method provided by an embodiment of the present application.

FIG. 4 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.

FIG. 5 is a schematic diagram of still another wireless communication method provided by an embodiment of the present application.

Fig. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of a network device provided by an embodiment of the present application.

FIG. 8 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

Fig. 9 is a schematic block diagram of a communication device according to another embodiment of the present application.

FIG. 10 is a schematic block diagram of a chip provided by an embodiment of the present application.

FIG. 11 is a schematic block diagram of a communication system provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.

The communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The "terminal equipment" used here includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment. A terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device. Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.

Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Figure 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.

Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 having a communication function and a terminal device 120. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiment of the present application.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

There can be the following timing deviations in the NR system:

1. Timing deviation between PUSCH and PDCCH

Assuming that the terminal device receives the DCI scheduling PUSCH in time slot n, the terminal device sends the PUSCH time slot

2. Timing deviation between PDSCH and PUCCH

If the terminal device receives a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled based on DCI format 1_0 or DCI format 1_1 in time slot n, or if the terminal device receives a PDCCH transmitted through PDCCH in time slot n Semi-Persistent Scheduling (SPS) PDSCH release signaling indicated by DCI format 1_0, the terminal device sends the corresponding Hybrid Automatic Repeat reQuest-ACKnowledge (Hybrid-Automatic Repeat reQuest-ACKnowledge, HARQ-ACK) in time slot n+k Information, where k is the number of time slots indicated by the PDSCH-to-HARQ-timing-indicator in the DCI format. For example, the 3 bits in DCI format 1_0 are used to indicate 1 to 8 time slots. Slot, 4 bits in DCI format1_1 are used to indicate 1-16 time slots, or k can also be indicated by signaling downlink data to uplink feedback (dl-DataToUL-ACK).

3. Timing deviation reported by CSI

The NR system supports aperiodic channel state information (CSI) reporting and semi-persistent CSI reporting. Both CSI reporting are activated/triggered by DCI and carried by PUSCH. The possible value of the time slot offset between PUSCH and DCI reported by activated/triggered CSI can be configured through high-level signaling parameters, such as the report slot offset list (reportSlotOffsetList). The value range can be 0-32 time slots. Actual use The time slot deviation k is indicated by activating/triggering the DCI reported by the CSI.

4. Timing deviation of CSI reference resource n _{CSI_ref}

The CSI reference resource is used for CSI measurement to measure the interference of the serving cell. In the time domain, the terminal equipment can report the CSI in the uplink time slot n'. The CSI reference resource is located in a separate downlink time slot.

Among them, μ _DL and μ _UL are the downlink and uplink subcarrier spacing respectively.

Currently, research is underway on 5G NR-based Non-Terrestrial Network (NTN) technology. NTN technology generally uses satellite communications to provide communications services to ground users. Compared with terrestrial cellular network communications, satellite communications are not restricted by user geographic areas. For general terrestrial communications that cannot cover oceans, mountains, deserts and other areas where communications equipment cannot be installed or are not covered by communications due to sparse population, satellites can be used for coverage, and satellites can orbit the earth. Therefore, basically the earth Every corner can be covered by satellite communications.

In the satellite communication scenario, both the downlink (the link from the satellite to the terminal device) and the uplink (the link from the terminal device to the satellite) have a long path propagation delay, and for low-orbit satellites generally one-way propagation The time delay is several microseconds. For geosynchronous orbit satellites, the one-way propagation delay is generally several hundred microseconds. These delays cannot be ignored for the above-mentioned timing deviation. Therefore, how to adjust the timing deviation is an urgent need to solve The problem.

FIG. 3 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the application. The method 200 may be executed by the terminal device in the communication system shown in FIG. 1. As shown in FIG. 3, the method 200 may include at least part of the following content:

S210: The terminal device receives a group public physical downlink control channel PDCCH, where the group public PDCCH includes timing deviation indication information;

S220: The terminal device determines target timing deviation information according to the timing deviation indication information.

Therefore, in the embodiment of the present application, the Group-common PDCCH can be used to more dynamically notify the terminal device of the timing deviation, thereby being able to adapt to the rapid change of the distance between the satellite and the terminal device in the satellite communication scenario.

It should be understood that, in the embodiment of the present application, the network device may notify the timing deviation indication information through other dynamic signaling, which is not limited in the embodiment of the present application.

In the embodiment of the present application, the timing deviation indication information may be used to determine the target timing deviation information, and the target timing deviation (denoted as K_offset) may be the propagation delay caused by the propagation path between the network device and the terminal device, In other words, to compensate for timing deviation.

In some embodiments, the timing deviation indication information may include the one-way propagation delay between the network device and the terminal device, such as the propagation delay of the uplink or the propagation delay of the downlink. In other implementations, In an example, the timing deviation indication information may include the round-trip propagation delay between the network device and the terminal device, for example, the sum of the propagation delay of the uplink and the propagation delay of the downlink. In the following, the timing deviation indication information is a one-way propagation delay as an example for description.

Optionally, in this embodiment of the present application, the target timing offset information K_offset may be used to compensate for at least one of the following timing offsets:

The timing deviation K2 between PUSCH and Physical Downlink Control Channel (PDCCH);

The timing deviation k between the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and the physical uplink control channel (Physical Uplink Control Channel, PUCCH);

Channel State Information (CSI) reporting timing deviation;

The timing deviation of the CSI reference resource.

For the timing deviation K2 between the PDCCH and PUSCH, the network device sends the PDCCH to the terminal device in time slot n, and the terminal device receives the PDCCH after experiencing K_offset1. If the PDCCH instructs the terminal device to send PUSCH in time slot n+K2, then The terminal device may send the PUSCH according to the timing deviation K2, and the PUSCH needs to experience K_offset1 to reach the network device, and the network device expects to receive the PUSCH in the time slot n+K2+2K_offset1. Therefore, in this embodiment of the application, on the basis of the timing deviation K2, the network device further notifies K_offset1 to the terminal device, so that the terminal device can adjust the PUSCH transmission timing according to the timing deviation K2 and K_offset1, so that the network device The PUSCH is received in time slot n+K2+2K_offset1.

For the timing of the terminal device side, if the terminal device receives the PDCCH sent by the network device in the time slot n, the PDCCH instructs the terminal device to send the PUSCH in the time slot n+K2. Because the PUSCH needs to experience K_offset1 to reach the network device, the network The device expects to receive the PUSCH in the time slot n+K2+K_offset1. Therefore, in this embodiment of the application, on the basis of the timing deviation K2, the network device further notifies K_offset1 to the terminal device, so that the terminal device can adjust the PUSCH transmission timing according to the timing deviation K2 and K_offset1, so that the network device The PUSCH is received in time slot n+K2+K_offset1.

Similarly, corresponding to the timing deviation K1 between PUCCH and PDSCH, if the terminal device receives a PDSCH scheduled based on DCI format 1_0 or DCI format 1_1 in time slot n, or receives a DCI transmitted through PDCCH in time slot n The SPS PDSCH release signaling indicated by the format 1_0, the terminal device can send PUCCH based on the timing deviation K1 to carry the HARQ-ACK information of the PDSCH. In the satellite communication scenario, the path propagation delay is large, the HARQ -ACK information needs to experience K_offset2 to reach the network device, and the network device expects to receive the PUCCH in the time slot n+K1+K_offset2. Therefore, on the basis of the timing deviation K1, the network device further informs K_offset2 to the terminal device, so that the terminal device can adjust the PUCCH transmission timing according to the timing deviation K1 and K_offset2, so that the network device is in the time slot n+K1+ K_offset2 receives the PUSCH.

Similarly, for the timing deviation k between the PUSCH carrying CSI feedback and the DCI that activates/triggers the CSI report, if the terminal device receives the DCI indication that activates/triggers the CSI report in time slot n, the terminal device can be based on the timing deviation k performs CSI reporting. In the satellite communication scenario, the path propagation delay is relatively large. The CSI reported by the terminal device needs to experience K_offset3 before reaching the network device. The network device expects to receive the CSI in the time slot n+k+K_offset3. Therefore, in the embodiment of the present application, on the basis of the timing deviation k, the network device further notifies K_offset3 to the terminal device, so that the terminal device can adjust the CSI transmission timing according to the timing deviation k and K_offset3, so that the network device The CSI is received in time slot n+k+K_offset3.

Similarly, for the timing deviation of the CSI reference resource, if the network device receives the CSI report of the terminal device in time slot n, since the path propagation delay is large in the satellite communication scenario, the CSI reported by the terminal device needs to go through K_offset4 to reach the network device Therefore, in this embodiment of the application, on _{the basis of the timing deviation n CSI_ref} , the network device further informs K_offset4 to the terminal device, so that the terminal device can adjust the timing of the CSI reference resource _{according to the timing deviation n CSI_ref and K_offset4,} For example, the timing of the CSI reference resource is adjusted to nn _{CSI_ref-} K_offset4, so that the network device receives the CSI reported by the terminal device in the time slot n.

It should be understood that the foregoing example is the same as the downlink sub-carrier spacing above. When the uplink and downlink sub-carrier spacing is different, it can be adjusted according to the relationship between the uplink and downlink sub-carrier spacing.

It should be noted that in this embodiment of the application, the K_offsets used to compensate for the above four timing deviations can be the same, that is, K_offset1, K_offset2, K_offset3, and K_offset4 can be equal, or the above four timing deviations can be compensated by using different K_offsets. In this case, the different K_offset may be notified through one Group-common PDCCH, or may also be notified separately through multiple Group-common PDCCHs.

In the embodiment of the present application, the group-common physical downlink control channel (Physical Downlink Control Channel, PDCCH) may be sent to a specific terminal group. That is, the timing deviation indication information is applicable to the specific terminal group. Wherein, the specific terminal group may be a terminal group to which the terminal device belongs.

In some embodiments, the specific terminal group may include:

All terminal equipment in a satellite cell;

A terminal group in a satellite cell;

All terminal equipment in a satellite beam;

A group of terminals in a satellite beam.

Optionally, in this embodiment of the application, one satellite cell may be covered by multiple satellite beams.

In some embodiments, the Group-common PDCCH is scrambled by a dedicated radio network temporary identifier (Radio Network Temporary Identity, RNTI). That is, the dedicated RNTI may be used to scramble the Group-common PDCCH that carries the timing deviation indication information, and the Group-common PDCCH that carries other information is not scrambled by the dedicated RNTI.

The dedicated RNTI may be predefined or configured by a network device. For example, the network device may configure the dedicated RNTI for the terminal device through high-level signaling.

Optionally, the high-level signaling may be radio resource control (Radio Resource Control, RRC) dedicated signaling, system broadcast messages or media access control control elements (Media Access Control Control Element, MAC CE), or through Other signaling configurations are not limited in this embodiment of the application.

In other embodiments, the dedicated RNTI may be the RNTI for the specific terminal group, that is, the Group-common PDCCH sent for the specific terminal group may be scrambled by the dedicated RNTI, Group-common PDCCHs sent by other terminal groups can be scrambled using RNTI dedicated to other terminal groups.

In the embodiment of this application, the Group-common PDCCH can be sent periodically, that is, the terminal device can periodically receive the Group-common PDCCH, and the network device can quickly notify the terminal device of the group-common PDCCH by periodically sending the Group-common PDCCH. The timing deviation indication information is beneficial to adapt to the rapid change of the distance between the satellite and the terminal device in the satellite communication scenario.

In some embodiments, the sending period of the Group-common PDCCH and the time domain position within the sending period are predefined or configured by a network device, for example, can be configured through high-level signaling. Optionally, the high-level signaling may be RRC dedicated signaling, system broadcast message, or MAC CE signaling.

Optionally, in some embodiments, the time unit of the timing deviation indicated by the timing deviation indication information may be predefined or configured by a network device, for example, configured through high-level signaling. Optionally, the high-level signaling may be RRC dedicated signaling, system broadcast message, or MAC CE.

Optionally, in some embodiments, the time unit may be one or more milliseconds, or one or more time slots, or may be other time units, which is not limited in the embodiment of the present application.

As an example, if the timing offset indicated by the timing offset indication information takes a value of K_offset, the terminal device may multiply the K_offset by the time unit as the target timing offset information. For example, if the timing deviation indication information takes a value of 60 and the time unit is 5 ms, the terminal device may determine that the target timing deviation information is 300 ms.

In the following, a specific implementation manner of the timing deviation indication information will be described with reference to specific embodiments.

Embodiment 1: The timing deviation indication information includes common timing deviation information of the group.

That is, the network device can notify the terminal device of the common timing deviation information of the group through the Group-common PDCCH.

Wherein, the group may be the aforementioned specific terminal group.

Optionally, in some embodiments, the common timing deviation information of the group may be carried in a specific information field in the DCI of the Group-common PDCCH, and the terminal device may obtain from the specific information field of the DCI Common timing offset information of the group.

In some embodiments, the common timing deviation information of the group may be determined based on the location of a specific terminal within the coverage area of the network device.

For example, the specific terminal position may be the terminal position closest to the network device, such as the position of UE1 as shown in FIG. 2, and the common timing deviation information of the group may be the timing deviation corresponding to UE1. The timing deviation may be the propagation delay of the path from UE1 to the network device.

For another example, the specific terminal position may be the terminal position farthest from the network device, such as the position of UE2 as shown in FIG. 2, and the common timing deviation information of the group may be the timing deviation corresponding to UE2. The corresponding timing deviation may be the propagation delay of the path from UE2 to the network device.

In the first embodiment, the terminal equipment in the group may determine the common timing deviation information of the group included in the Group-common PDCCH as the target timing deviation information, and further, the terminal equipment may The timing of the signal or channel to be transmitted is adjusted based on the common timing deviation information of the group.

In some embodiments, the network device may also notify the timing deviation indication information through system information. Before receiving the Group-common PDCCH, the terminal device may determine the target according to the timing deviation indication information in the system information. For timing deviation information, after receiving the Group-common PDCCH, the terminal device may determine the target timing deviation information according to the timing deviation indication information carried by the Group-common PDCCH.

In other embodiments, if the terminal device receives multiple Group-common PDCCHs, the terminal device may determine the target timing offset information according to the recently received Group-common PDCCH, that is, the terminal device may determine the target timing offset information before it is no longer used. The Group-common PDCCH determines the target timing deviation information.

Embodiment 2: The timing deviation indication information includes a timing deviation adjustment amount, the timing deviation adjustment amount may be an adjustment amount relative to the common timing deviation information of the group, wherein the timing deviation adjustment amount may be for all The amount of timing deviation adjustment of the group.

Alternatively, the timing deviation indication information includes a timing deviation adjustment amount of each terminal device in a plurality of terminal devices, and the timing deviation adjustment amount of each terminal device may be an adjustment relative to the common timing deviation information of the group the amount.

It should be understood that, in the second embodiment, the common timing offset information of the group may be obtained from system information, or may also be obtained from Group-common PDCCH.

In a possible implementation manner, the terminal device may determine the target timing deviation information according to the common timing deviation information of the group and the timing deviation adjustment amount. For example, the terminal device may determine the sum of the common timing deviation information of the group and the timing deviation adjustment amount as the target timing deviation information.

Assuming that the system information carries the common timing offset information K_offset of the group, and the Group-common PDCCH carries the timing offset adjustment delta_K_offset, the terminal device will be able to calculate the sum of the common timing offset information of the group and the timing offset adjustment , That is, K_offset+delta_K_offset is determined as the target timing deviation information.

In another possible implementation manner, if the timing deviation indication information includes the timing deviation adjustment amount of each of the multiple terminal devices, the terminal device may be based on the common timing deviation information of the group and the The timing offset adjustment amount (delta_K_offset_UE) of the terminal device determines the target timing offset information. For example, the terminal device may determine the sum of the common timing offset information of the group and the timing offset adjustment amount delta_K_offset_UE of the terminal device, that is, K_offset+delta_K_offset_UE as the target timing offset information.

In other optional implementation manners, the terminal device may also determine the target timing according to the common timing offset information K_offset of the group, the timing offset adjustment delta_K_offset, and the timing offset adjustment delta_K_offset_UE of the terminal device Deviation information.

For example, the terminal device may determine the common timing deviation information of the group, the sum of the timing deviation adjustment amount and the timing deviation adjustment amount of the terminal device as the target timing deviation information.

Therefore, in this embodiment of the application, the network device can notify the terminal device of the timing offset information through the system information combined with the Group-common PDCCH, so that the terminal device can obtain the K_offset of the terminal group immediately after reading the system information, and the network device can further Group-common PDCCH can realize more dynamic notification of the timing offset adjustment delta_K_offset to the terminal device, which is beneficial to adapt to the rapid change of the distance between the satellite and the terminal device in the satellite communication scenario. Further, the network device can also notify the terminal device of the dedicated timing deviation adjustment amount, so that more accurate UE-level timing deviation adjustment can be achieved.

In some embodiments, the terminal device may determine the target timing deviation information according to the timing deviation adjustment amount in the recently received Group-common PDCCH and the historical accumulated timing deviation adjustment amount of the terminal device. Wherein, the historical accumulated timing offset adjustment amount of the terminal device may be the accumulated value of the timing offset adjustment amount in the Group-common PDCCH received by the terminal device before.

For example, when a terminal device receives the Group-common PDCCH for the nth time, the historical accumulated timing deviation adjustment amount of the terminal device is K_n, and the Group-common PDCCH is received for the n+1th time. The timing deviation adjustment amount of the terminal device is K_new. At this time, the terminal device can determine that the target timing deviation information is K_n+K_new. At this time, the historical accumulated timing deviation adjustment amount of the terminal device K_n+1=K_n+K_new.

It should be noted that, in this embodiment of the application, the historical cumulative timing deviation adjustment amount may be at the granularity of the terminal device, or may also be at the granularity of the terminal group, that is, the terminal device may be based on the Group-common PDCCH The timing deviation adjustment amount for the terminal group in the terminal group determines the target timing deviation information in combination with the historical accumulated timing deviation adjustment amount of the terminal group.

In some embodiments, if the terminal device receives other signaling from the network device, the other signaling also carries the timing deviation adjustment amount of the terminal device, and the terminal device may also perform the timing deviation adjustment amount in the other signaling. They are respectively included in the historical accumulated timing deviation adjustment amount and used to determine the target timing deviation information.

In some embodiments of the present application, the network device may notify the location information of the timing deviation information of each of the multiple terminal devices in the DCI of the Group-common PDCCH, so as to facilitate the Each terminal device may obtain the timing deviation information of each terminal device according to the location information. Optionally, the network device may also notify the total length of information bits occupied by the timing deviation information of the multiple terminal devices, which is used by the terminal device to demodulate the Group-common PDCCH to obtain the total length of the information bits. Describe the timing deviation information of each terminal device.

Optionally, the network device may notify the location information of the timing offset information of each of the multiple terminal devices in the DCI of the Group-common PDCCH through high-level signaling. As an example and not a limitation, the high-level signaling may be RRC dedicated signaling, system broadcast message or MAC CE. As an example, the position information of the timing deviation information of each terminal device in the DCI of the Group-common PDCCH may include the position number of the timing deviation information of each terminal device in the DCI. The position number can be used to indicate the starting position and length.

Embodiment 3: The reference subcarrier interval corresponding to the timing deviation indication information

In the third embodiment, the timing deviation indication information can be obtained from system information, or it can be obtained from Group-common PDCCH, or it can also be obtained from other signaling, such as RRC signaling. Not limited.

In some embodiments, the network device may configure multiple bandwidth parts (Bandwidth Part, BWP) for the terminal device, and may configure different subcarrier intervals for multiple BWPs. In the foregoing embodiment, the system information or Group- The common PDCCH may only notify one timing deviation indication information, and the timing deviation indication information may correspond to the reference subcarrier interval. Further, the terminal equipment may be based on the timing deviation indication information, the currently used subcarrier interval and the reference subcarrier interval. The relationship between the carrier spacing determines the target timing deviation information.

Optionally, in some embodiments, the reference subcarrier interval may be predefined or configured by a network device. For example, the network device may be configured through high-level signaling, and the high-level signaling may be RRC dedicated signaling. Command, system broadcast message or MAC CE, etc., notify the reference subcarrier interval through system broadcast information or RRC signaling, which is beneficial to improve the flexibility of system indication. In some embodiments, the network device may select an appropriate reference sub-carrier interval according to information such as the working frequency band and the BWP sub-carrier configuration.

Optionally, in other embodiments, the reference sub-carrier interval may be determined according to the sub-carrier interval of a synchronization signal block (synchronizing signal/PBCH block, SSB, SS Block, or SS/PBCH block), for example, all The subcarrier interval of the SSB is determined as the reference subcarrier interval.

In other embodiments, the reference subcarrier interval may be determined according to the subcarrier interval of the system broadcast message, for example, the subcarrier interval of the system broadcast message may be determined as the reference subcarrier interval, or may also be determined according to the initial downlink BWP For the determination of the subcarrier interval, for example, the subcarrier interval of the initial downlink BWP may be determined as the reference subcarrier interval. The embodiment of the present application does not specifically limit the method for determining the reference subcarrier interval.

Further, the terminal device may determine the target timing deviation information according to the timing deviation indication information and the relationship between the currently used subcarrier spacing and the reference subcarrier spacing.

Specifically, the terminal device may determine the first timing deviation information according to the timing deviation indication information. For specific implementation, refer to the description of determining target timing deviation information according to the timing deviation indication information in Embodiment 1 and Embodiment 2. Concise, I won't repeat it here.

As an example, the timing deviation indication information includes common timing deviation information for the group. In this case, the terminal device may determine the common timing deviation information of the group as the first timing deviation information. Taking the timing between PDCCH and PUSCH as an example, if the common timing deviation information of the group is 60 and the time unit is 5ms, it can be determined that the target timing deviation is 300ms. If the terminal device receives the PDCCH in time slot n, Further, the terminal device may adjust the PUSCH transmission timing based on the timing deviation K2 between the PDCCH and the PUSCH and the target timing deviation 300, so that the network device can receive the data at the desired time (ie, time slot n+K2+300ms).述PUSCH.

As another example, the timing deviation indication information includes a timing deviation adjustment amount, wherein the timing deviation adjustment amount is an adjustment amount relative to the first common timing deviation information of the group. In this case, the terminal device The first timing deviation information may be determined according to the timing deviation adjustment amount and the first common timing deviation information of the group. For example, the terminal device may compare the timing deviation adjustment amount to the first common timing deviation information of the group. The sum of timing deviation information is determined as the first timing deviation information. It should be noted that the first common timing offset information of the group here may be obtained from system information, or may also be obtained from Group-common PDCCH.

Taking the timing between PDCCH and PUSCH as an example, if the first common timing deviation information of the group is 60, the time unit is 5ms, the timing deviation adjustment is 10, and the time unit is 1ms, then the target timing deviation can be determined If the terminal device receives the PDCCH in time slot n, the terminal device can adjust the PUSCH transmission timing based on the timing deviation K2 between the PDCCH and the PUSCH and the target timing deviation 310, so that the network The device receives the PUSCH at a desired time (that is, time slot n+K2+310ms).

Further, the terminal device may determine the target timing deviation information according to the first timing deviation information in combination with the relationship between the subcarrier interval currently used by the terminal device and the reference subcarrier interval. For example, a result of multiplying the first timing deviation information by a specific ratio is determined as the target timing deviation information, where the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.

For example, if the reference subcarrier interval is 15KHz, it means that the timing deviation is K_offset timeslots of 15KHz. Taking the timing between PDCCH and PUSCH as an example, if the current uplink BWP of the terminal device is 30KHz, the target timing deviation is 30/15*K_offset=2*K_offset 30KHz time slots.

Therefore, in the embodiment of the present application, the network device can notify the terminal device or the reference subcarrier interval corresponding to the predefined timing offset K_offset to enable the terminal device to obtain accurate timing offset information according to the current working subcarrier interval.

The wireless communication method according to an embodiment of the present application is described in detail above in conjunction with FIG. 3 from the perspective of a terminal device, and the wireless communication method according to another embodiment of the present application is described in detail below in conjunction with FIG. 4 from the perspective of a network device. It should be understood that the description on the network device side corresponds to the description on the terminal device side, and similar descriptions can be referred to above. To avoid repetition, details are not repeated here.

FIG. 4 is a schematic flowchart of a wireless communication method 300 according to another embodiment of the present application. The method 300 may be executed by a network device in the communication system shown in FIG. 1. As shown in FIG. 4, the method 300 includes The following content:

S310: The network device sends a group public physical downlink control channel PDCCH to a terminal device, where the group public PDCCH includes timing deviation indication information, and the timing deviation indication information is used by the terminal device to determine target timing deviation information.

Optionally, in some embodiments, the timing deviation indication information includes at least one of the following: common timing deviation information for the group;

A timing deviation adjustment amount, where the timing deviation adjustment amount is an adjustment amount relative to the first common timing deviation information of the group.

Optionally, in some embodiments, the first common timing offset information of the group is obtained from the PDCCH of the group, or obtained from system information.

Optionally, in some embodiments, the timing deviation indicated by the timing deviation indication information corresponds to a reference subcarrier interval.

Optionally, the group of public PDCCH is scrambled by a private wireless network temporary identifier RNTI.

Optionally, the dedicated RNTI is predefined or configured by network equipment.

Optionally, in some embodiments, the dedicated RNTI is an RNTI for a specific terminal group.

Optionally, the network device sending the group public physical downlink control channel PDCCH to the terminal device includes:

The network device periodically sends the group of public PDCCHs.

Optionally, the transmission period of the group of common PDCCHs and/or the time domain position within the transmission period are predefined or configured by the network device.

Optionally, the target timing deviation information is used to compensate at least one of the following timing deviations:

The timing deviation between the physical uplink shared channel PUSCH and PDCCH;

The timing deviation between the physical downlink shared channel PDSCH and the physical uplink control channel PUCCH;

The timing deviation between the PUSCH and the downlink control information DCI reported by the trigger channel state information CSI;

The timing deviation of the CSI reference resource.

FIG. 5 is a schematic flowchart of a wireless communication method 400 according to still another embodiment of the present application. The method 400 may be executed by the terminal device in the communication system shown in FIG. 1. As shown in FIG. 5, the method 400 includes The following content:

S410: The terminal device receives timing deviation indication information, where the timing deviation indication information corresponds to a reference subcarrier interval;

S420: The terminal device determines the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device.

In this embodiment, the timing deviation indication information may be obtained through system information, or obtained from Group-common PDCCH, which is not limited in the embodiment of the present application.

Optionally, in some embodiments, the terminal device determining the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device includes:

Determining, by the terminal device, first timing deviation information according to the timing deviation indication information;

The terminal device determines the target timing offset information according to the first timing offset information and the relationship between the subcarrier interval currently used by the terminal device and the reference subcarrier interval.

It should be understood that the specific implementation of determining the first timing deviation information by the terminal device according to the timing deviation indication information may refer to the related description of determining the target timing deviation information according to the timing deviation indication information in Embodiment 1 and Embodiment 2. For the sake of brevity , I won’t repeat it here.

As an example, the timing deviation indication information includes common timing deviation information for the group. In this case, the terminal device may determine the common timing deviation information of the group as the first timing deviation information.

As another example, the timing deviation indication information includes a timing deviation adjustment amount, wherein the timing deviation adjustment amount is an adjustment amount relative to the first common timing deviation information of the group. In this case, the terminal device The first timing deviation information may be determined according to the timing deviation adjustment amount and the first common timing deviation information of the group. For example, the terminal device may compare the timing deviation adjustment amount to the first common timing deviation information of the group. The sum of timing deviation information is determined as the first timing deviation information.

Optionally, in some embodiments, the terminal device determines the target timing offset according to the first timing offset information and the relationship between the subcarrier interval currently used by the terminal device and the reference subcarrier interval Information, including:

The terminal device determines a result of multiplying the first timing deviation information by a specific ratio as the target timing deviation information, where the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.

Optionally, in some embodiments, the reference subcarrier interval is predefined, configured by the network device, determined according to the subcarrier interval of the synchronization signal block SSB, determined according to the subcarrier interval of the system message, and determined according to the initial The sub-carrier spacing of the BWP in the downlink bandwidth part is determined.

Optionally, in some embodiments, the terminal device receiving timing deviation indication information includes:

The terminal device receives a group public physical downlink control channel PDCCH, and the group public PDCCH includes the timing deviation indication information.

Optionally, in some embodiments, the group of public PDCCH is scrambled by a private wireless network temporary identifier RNTI.

Optionally, in some embodiments, the dedicated RNTI is predefined or configured by network equipment.

Optionally, in some embodiments, the terminal device receiving the group public physical downlink control channel PDCCH includes:

The terminal device periodically receives the group of common PDCCHs.

Optionally, in some embodiments, the transmission period of the group of public PDCCHs and/or the time domain position within the transmission period are predefined or configured by a network device.

Optionally, in some embodiments, the target timing deviation information is used to compensate for at least one of the following timing deviations:

The timing deviation of the CSI reference resource.

The method embodiments of the present application are described in detail above with reference to Figs. 3 to 5, and the device embodiments of the present application are described in detail below in conjunction with Figs. The description can refer to the method embodiment.

FIG. 6 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application. As shown in FIG. 6, the terminal device 500 includes:

The communication module 510 is configured to receive a group public physical downlink control channel PDCCH, where the group public PDCCH includes timing deviation indication information;

The determining module 520 is configured to determine target timing deviation information according to the timing deviation indication information.

Optionally, in some embodiments, the timing deviation indication information includes common timing deviation information for the group, and the determining module 520 is specifically configured to:

The common timing deviation information of the group is determined as the target timing deviation information.

Optionally, in some embodiments, the timing deviation indication information includes the timing deviation adjustment amount, and the determining module is specifically configured to:

The sum of the first common timing deviation information of the group and the timing deviation adjustment amount is determined as the target timing deviation information.

Optionally, in some embodiments, the determining module 520 is further configured to:

Determine the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device.

Optionally, in some embodiments, the determining module 520 is specifically configured to:

Determine first timing deviation information according to the timing deviation indication information, where the first timing deviation information corresponds to a reference subcarrier interval;

The first timing deviation information and the relationship between the subcarrier interval currently used by the terminal device and the reference subcarrier interval determine the target timing deviation information.

The result of multiplying the first timing deviation information by a specific ratio is determined as the target timing deviation information, where the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.

Optionally, in some embodiments, the reference subcarrier interval is predefined, configured by the network device, determined according to the subcarrier interval of the synchronization signal block SSB, determined according to the subcarrier interval of the system message, or Determined according to the sub-carrier spacing of the BWP of the initial downlink bandwidth.

Optionally, in some embodiments, the communication module is specifically configured to periodically receive the group of public PDCCHs.

The timing deviation of the CSI reference resource.

Optionally, in some embodiments, the aforementioned communication module may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip. The aforementioned determining module may be one or more processors.

It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 500 are to implement the method shown in FIG. 3, respectively. For the sake of brevity, the corresponding process of the terminal equipment in 200 will not be repeated here.

Fig. 7 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 600 of FIG. 7 includes:

The communication module 610 is configured to send a group public physical downlink control channel PDCCH to a terminal device, where the group public PDCCH includes timing deviation indication information, and the timing deviation indication information is used by the terminal device to determine target timing deviation information.

Optionally, in some embodiments, the timing deviation indication information includes at least one of the following:

Common timing offset information for the group;

Optionally, in some embodiments, the communication module is specifically configured to send the group public PDCCH periodically.

Optionally, in some embodiments, the transmission period of the group of common PDCCHs and/or the time domain position within the transmission period are predefined or configured by the network device.

The timing deviation of the CSI reference resource.

Optionally, in some embodiments, the above-mentioned communication module may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip. The aforementioned determining module may be one or more processors.

It should be understood that the network device 600 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 600 are to implement the method shown in FIG. 4, respectively. For the sake of brevity, the corresponding process of the network equipment in 300 will not be repeated here.

FIG. 8 shows a schematic block diagram of a terminal device 1000 according to an embodiment of the present application. As shown in FIG. 8, the terminal device 1000 includes:

The communication module 1010 is configured to receive timing deviation indication information, where the timing deviation indication information corresponds to a reference subcarrier interval;

The determining module 1020 is configured to determine the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device.

Optionally, in some embodiments, the determining module 1020 is specifically configured to:

Determine the first timing deviation information according to the timing deviation indication information;

The target timing deviation information is determined according to the first timing deviation information and the relationship between the subcarrier spacing currently used by the terminal device and the reference subcarrier spacing.

The result of multiplying the first timing deviation information by a specific ratio is determined as the target timing deviation information, wherein the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.

Common timing offset information for the group;

Optionally, in some embodiments, the communication module 1010 is further configured to:

Receive a group public physical downlink control channel PDCCH, where the group public PDCCH includes the timing deviation indication information.

Optionally, the terminal equipment receiving the group public physical downlink control channel PDCCH includes:

The terminal device periodically receives the group of common PDCCHs.

The timing deviation of the CSI reference resource.

It should be understood that the terminal device 1000 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the terminal device 1000 are to implement the method shown in FIG. 5, respectively. For the sake of brevity, the corresponding process of the terminal equipment in 400 will not be repeated here.

FIG. 9 is a schematic structural diagram of a communication device 700 according to an embodiment of the present application. The communication device 700 shown in FIG. 9 includes a processor 710, and the processor 710 can 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. 9, the communication device 700 may further include a memory 720. The processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.

The memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.

Optionally, as shown in FIG. 9, the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Wherein, the transceiver 730 may include a transmitter and a receiver. The transceiver 730 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 700 may specifically be a network device of an embodiment of the application, and the communication device 700 may implement the corresponding process implemented by the network device in each method of the embodiment of the application. For the sake of brevity, it will not be repeated here. .

Optionally, the communication device 700 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 700 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

FIG. 10 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 800 shown in FIG. 10 includes a processor 810, and the processor 810 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 10, the chip 800 may further include a memory 820. The processor 810 may call and run a computer program from the memory 820 to implement the method in the embodiment of the present application.

The memory 820 may be a separate device independent of the processor 810, or may be integrated in the processor 810.

Optionally, the chip 800 may further include an input interface 830. The processor 810 can control the input interface 830 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 800 may further include an output interface 840. The processor 810 can control the output interface 840 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not described herein again.

Optionally, the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For the sake of brevity, here No longer.

It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.

FIG. 11 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in FIG. 11, the communication system 900 includes a terminal device 910 and a network device 920.

Wherein, the terminal device 910 can be used to implement the corresponding function implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application , For the sake of brevity, I won’t repeat it here.

The embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it is not here. Go into details again.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, I will not repeat them here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A wireless communication method, characterized in that it comprises:

The terminal device receives a group public physical downlink control channel PDCCH, where the group public PDCCH includes timing deviation indication information;

The terminal device determines target timing deviation information according to the timing deviation indication information.
The method according to claim 1, wherein the timing deviation indication information comprises at least one of the following:

Common timing offset information for the group;

A timing deviation adjustment amount, where the timing deviation adjustment amount is an adjustment amount relative to the first common timing deviation information of the group.
The method according to claim 2, wherein the first common timing offset information of the group is obtained from the PDCCH of the group or obtained from system information.
The method according to claim 2 or 3, wherein the timing deviation indication information includes common timing deviation information for the group, and the terminal device determines the target timing deviation information according to the group public PDCCH, include:

The terminal device determines the common timing deviation information of the group as the target timing deviation information.
The method according to claim 2 or 3, wherein the timing deviation indication information includes the timing deviation adjustment amount, and the terminal device determining target timing deviation information according to the group of common PDCCHs includes:

The terminal device determines the sum of the first common timing deviation information of the group and the timing deviation adjustment amount as the target timing deviation information.
The method according to any one of claims 1 to 5, wherein the terminal device determining target timing deviation information according to the timing deviation indication information comprises:

The terminal device determines the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device.
The method according to claim 6, wherein the terminal device determines the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device, comprising:

The terminal device determines first timing deviation information according to the timing deviation indication information, where the first timing deviation information corresponds to a reference subcarrier interval;

The first timing offset information of the terminal device, and the relationship between the subcarrier interval currently used by the terminal device and the reference subcarrier interval, determine the target timing offset information.
The method according to claim 7, wherein the first timing deviation information of the terminal device, and the relationship between the subcarrier interval currently used by the terminal device and the reference subcarrier interval determine the target Timing deviation information, including:

The terminal device determines a result of multiplying the first timing deviation information by a specific ratio as the target timing deviation information, where the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.
The method according to claim 7 or 8, wherein the reference subcarrier interval is predefined, configured by a network device, determined according to the subcarrier interval of the synchronization signal block SSB, and according to the subcarrier interval of the system message The interval is determined or determined according to the sub-carrier interval of the BWP of the initial downlink bandwidth part.
The method according to any one of claims 1 to 9, wherein the group of public PDCCH is scrambled by a private wireless network temporary identifier RNTI.
The method according to claim 10, wherein the dedicated RNTI is predefined or configured by a network device.
The method according to claim 10 or 11, wherein the dedicated RNTI is an RNTI for a specific terminal group.
The method according to any one of claims 1 to 12, wherein the terminal device receiving a group public physical downlink control channel PDCCH comprises:

The terminal device periodically receives the group of common PDCCHs.
The method according to claim 13, wherein the transmission period of the group of public PDCCHs and/or the time domain position within the transmission period are predefined or configured by a network device.
The method according to any one of claims 1 to 14, wherein the target timing deviation information is used to compensate for at least one of the following timing deviations:

The timing deviation between the physical uplink shared channel PUSCH and PDCCH;

The timing deviation between the physical downlink shared channel PDSCH and the physical uplink control channel PUCCH;

The timing deviation between the PUSCH and the downlink control information DCI reported by the trigger channel state information CSI;

The timing deviation of the CSI reference resource.
A wireless communication method, characterized in that it comprises:

The network device sends a group public physical downlink control channel PDCCH to the terminal device, where the group public PDCCH includes timing deviation indication information, and the timing deviation indication information is used by the terminal device to determine target timing deviation information.
The method according to claim 16, wherein the timing deviation indication information comprises at least one of the following:

Common timing offset information for the group;

A timing deviation adjustment amount, where the timing deviation adjustment amount is an adjustment amount relative to the first common timing deviation information of the group.
The method according to claim 17, wherein the first common timing offset information of the group is obtained from the PDCCH of the group or obtained from system information.
The method according to any one of claims 16 to 18, wherein the timing deviation indicated by the timing deviation indication information corresponds to a reference subcarrier interval.
The method according to any one of claims 16 to 19, wherein the group of public PDCCH is scrambled by a private wireless network temporary identifier RNTI.
The method according to claim 20, wherein the dedicated RNTI is predefined or configured by a network device.
The method according to claim 20 or 21, wherein the dedicated RNTI is an RNTI for a specific terminal group.
The method according to any one of claims 16 to 22, wherein the sending of the group public physical downlink control channel (PDCCH) by the network device to the terminal device comprises:

The network device periodically sends the group of public PDCCHs.
The method according to claim 23, wherein the transmission period of the group of public PDCCHs and/or the time domain position within the transmission period are predefined or configured by the network device.
The method according to any one of claims 16 to 24, wherein the target timing deviation information is used to compensate for at least one of the following timing deviations:

The timing deviation between the physical uplink shared channel PUSCH and PDCCH;

The timing deviation between the physical downlink shared channel PDSCH and the physical uplink control channel PUCCH;

The timing deviation between the PUSCH and the downlink control information DCI reported by the trigger channel state information CSI;

The timing deviation of the CSI reference resource.
A wireless communication method, characterized in that it comprises:

The terminal device receives timing deviation indication information, where the timing deviation indication information corresponds to a reference subcarrier interval;

The terminal device determines the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device.
The method according to claim 26, wherein the terminal device determines the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device, comprising:

Determining, by the terminal device, first timing deviation information according to the timing deviation indication information;

The terminal device determines the target timing offset information according to the first timing offset information and the relationship between the subcarrier interval currently used by the terminal device and the reference subcarrier interval.
The method according to claim 27, wherein the terminal device determines the relationship between the subcarrier interval currently used by the terminal device and the reference subcarrier interval according to the first timing deviation information and Target timing deviation information, including:

The terminal device determines a result of multiplying the first timing deviation information by a specific ratio as the target timing deviation information, where the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.
The method according to claim 27 or 28, wherein the reference subcarrier interval is predefined, configured by the network device, determined according to the subcarrier interval of the synchronization signal block SSB, and according to the subcarrier interval of the system message It is determined according to the sub-carrier spacing of the BWP of the initial downlink bandwidth part.
The method according to any one of claims 26 to 29, wherein the timing deviation indication information comprises at least one of the following:

Common timing offset information for the group;

A timing deviation adjustment amount, where the timing deviation adjustment amount is an adjustment amount relative to the first common timing deviation information of the group.
The method according to claim 30, wherein the first common timing offset information of the group is obtained from the PDCCH of the group or obtained from system information.
The method according to any one of claims 26 to 31, wherein the terminal device receiving timing deviation indication information comprises:

The terminal device receives a group public physical downlink control channel PDCCH, and the group public PDCCH includes the timing deviation indication information.
The method according to claim 32, wherein the group of public PDCCH is scrambled by a private wireless network temporary identifier RNTI.
The method according to claim 33, wherein the dedicated RNTI is predefined or configured by a network device.
The method according to claim 33 or 34, wherein the dedicated RNTI is an RNTI for a specific terminal group.
The method according to any one of claims 32 to 35, wherein the receiving of the group public physical downlink control channel PDCCH by the terminal equipment comprises:

The terminal device periodically receives the group of common PDCCHs.
The method according to claim 36, wherein the transmission period of the group of public PDCCHs and/or the time domain position within the transmission period are predefined or configured by a network device.
The method according to any one of claims 26 to 37, wherein the target timing deviation information is used to compensate for at least one of the following timing deviations:

The timing deviation between the physical uplink shared channel PUSCH and PDCCH;

The timing deviation between the physical downlink shared channel PDSCH and the physical uplink control channel PUCCH;

The timing deviation between the PUSCH and the downlink control information DCI reported by the trigger channel state information CSI;

The timing deviation of the CSI reference resource.
A terminal device, characterized in that it comprises:

A communication module, configured to receive a group public physical downlink control channel PDCCH, where the group public PDCCH includes timing deviation indication information;

The determining module is configured to determine target timing deviation information according to the timing deviation indication information.
The terminal device according to claim 39, wherein the timing deviation indication information comprises at least one of the following:

Common timing offset information for the group;

A timing deviation adjustment amount, where the timing deviation adjustment amount is an adjustment amount relative to the first common timing deviation information of the group.
The terminal device according to claim 40, wherein the first common timing offset information of the group is obtained from the group PDCCH or is obtained from system information.
The terminal device according to claim 40 or 41, wherein the timing deviation indication information includes common timing deviation information for the group, and the determining module is specifically configured to:

The common timing deviation information of the group is determined as the target timing deviation information.
The terminal device according to claim 40 or 41, wherein the timing deviation indication information includes the timing deviation adjustment amount, and the determining module is specifically configured to:

The sum of the first common timing deviation information of the group and the timing deviation adjustment amount is determined as the target timing deviation information.
The terminal device according to any one of claims 39 to 43, wherein the determining module is further configured to:

Determine the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device.
The terminal device according to claim 44, wherein the determining module is specifically configured to:

Determine first timing deviation information according to the timing deviation indication information, where the first timing deviation information corresponds to a reference subcarrier interval;

The first timing deviation information and the relationship between the subcarrier interval currently used by the terminal device and the reference subcarrier interval determine the target timing deviation information.
The terminal device according to claim 45, wherein the determining module is specifically configured to:

The result of multiplying the first timing deviation information by a specific ratio is determined as the target timing deviation information, where the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.
The terminal device according to claim 45 or 46, wherein the reference subcarrier interval is predefined, configured by the network device, determined according to the subcarrier interval of the synchronization signal block SSB, and determined according to the subcarrier interval of the system message The carrier interval is determined, or determined according to the sub-carrier interval of the BWP of the initial downlink bandwidth part.
The terminal device according to any one of claims 39 to 47, wherein the group of public PDCCH is scrambled by a private wireless network temporary identifier RNTI.
The terminal device according to claim 48, wherein the dedicated RNTI is predefined or configured by a network device.
The terminal device according to claim 48 or 49, wherein the dedicated RNTI is an RNTI for a specific terminal group.
The terminal device according to any one of claims 39 to 50, wherein the communication module is specifically configured to: periodically receive the group public PDCCH.
The terminal device according to claim 51, wherein the transmission period of the group of public PDCCH and/or the time domain position within the transmission period are predefined or configured by a network device.
The terminal device according to any one of claims 39 to 52, wherein the target timing deviation information is used to compensate for at least one of the following timing deviations:

The timing deviation between the physical uplink shared channel PUSCH and PDCCH;

The timing deviation between the physical downlink shared channel PDSCH and the physical uplink control channel PUCCH;

The timing deviation between the PUSCH and the downlink control information DCI reported by the trigger channel state information CSI;

The timing deviation of the CSI reference resource.
A network device, characterized in that it comprises:

The communication module is configured to send a group public physical downlink control channel PDCCH to a terminal device, where the group public PDCCH includes timing deviation indication information, and the timing deviation indication information is used by the terminal device to determine target timing deviation information.
The network device according to claim 54, wherein the timing deviation indication information comprises at least one of the following:

Common timing offset information for the group;

A timing deviation adjustment amount, where the timing deviation adjustment amount is an adjustment amount relative to the first common timing deviation information of the group.
The network device according to claim 55, wherein the first common timing offset information of the group is obtained from the PDCCH of the group or obtained from system information.
The network device according to any one of claims 54 to 56, wherein the timing deviation indicated by the timing deviation indication information corresponds to a reference subcarrier interval.
The network device according to any one of claims 54 to 57, wherein the group of public PDCCH is scrambled by a private wireless network temporary identifier, RNTI.
The network device according to claim 58, wherein the dedicated RNTI is predefined or configured by the network device.
The network device according to claim 58 or 59, wherein the dedicated RNTI is an RNTI for a specific terminal group.
The network device according to any one of claims 54 to 60, wherein the communication module is specifically configured to: periodically send the group public PDCCH.
The network device according to claim 61, wherein the transmission period of the group public PDCCH and/or the time domain position within the transmission period are predefined or configured by the network device.
The network device according to any one of claims 54 to 62, wherein the target timing deviation information is used to compensate for at least one of the following timing deviations:

The timing deviation between the physical uplink shared channel PUSCH and PDCCH;

The timing deviation between the physical downlink shared channel PDSCH and the physical uplink control channel PUCCH;

The timing deviation between the PUSCH and the downlink control information DCI reported by the trigger channel state information CSI;

The timing deviation of the CSI reference resource.
A terminal device, characterized in that it comprises:

A communication module, configured to receive timing deviation indication information, where the timing deviation indication information corresponds to a reference subcarrier interval;

The determining module is configured to determine the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal device.
The terminal device according to claim 64, wherein the determining module is specifically configured to:

Determine the first timing deviation information according to the timing deviation indication information;

The target timing deviation information is determined according to the first timing deviation information and the relationship between the subcarrier spacing currently used by the terminal device and the reference subcarrier spacing.
The terminal device according to claim 65, wherein the determining module is specifically configured to:

The result of multiplying the first timing deviation information by a specific ratio is determined as the target timing deviation information, where the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.
The terminal device according to claim 65 or 66, wherein the reference subcarrier interval is predefined, configured by the network device, determined according to the subcarrier interval of the synchronization signal block SSB, and determined according to the subcarrier interval of the system message The interval is determined according to the subcarrier interval of the BWP of the initial downlink bandwidth part.
The terminal device according to any one of claims 64 to 67, wherein the timing deviation indication information comprises at least one of the following:

Common timing offset information for the group;

A timing deviation adjustment amount, where the timing deviation adjustment amount is an adjustment amount relative to the first common timing deviation information of the group.
The terminal device according to claim 68, wherein the first common timing offset information of the group is obtained from the group PDCCH or is obtained from system information.
The terminal device according to any one of claims 64 to 69, wherein the communication module is further configured to:

Receive a group public physical downlink control channel PDCCH, where the group public PDCCH includes the timing deviation indication information.
The terminal device according to claim 70, wherein the group public PDCCH is scrambled by a private wireless network temporary identifier RNTI.
The terminal device according to claim 71, wherein the dedicated RNTI is predefined or configured by a network device.
The terminal device according to claim 71 or 72, wherein the dedicated RNTI is an RNTI for a specific terminal group.
The terminal device according to any one of claims 70 to 73, wherein the terminal device receiving a group public physical downlink control channel (PDCCH) comprises:

The terminal device periodically receives the group of common PDCCHs.
The terminal device according to claim 74, wherein the transmission period of the group of public PDCCHs and/or the time domain position within the transmission period are predefined or configured by a network device.
The terminal device according to any one of claims 64 to 75, wherein the target timing deviation information is used to compensate for at least one of the following timing deviations:

The timing deviation between the physical uplink shared channel PUSCH and PDCCH;

The timing deviation between the physical downlink shared channel PDSCH and the physical uplink control channel PUCCH;

The timing deviation between the PUSCH and the downlink control information DCI reported by the trigger channel state information CSI;

The timing deviation of the CSI reference resource.
A terminal device, characterized by comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 1 to 15 The method of one, or the method of any one of claims 26 to 38.
A network device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 16 to 25 The method described in one item.
A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the method according to any one of claims 1 to 15, or The method of any one of claims 16 to 25, or the method of any one of claims 26 to 38.
A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 1 to 15, or any one of claims 16 to 25 The method according to item, or the method according to any one of claims 26 to 38.
A computer program product, characterized by comprising computer program instructions that cause a computer to execute the method according to any one of claims 1 to 15, or the method according to any one of claims 16 to 25 , Or the method of any one of claims 26 to 38.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 1 to 15, or the method according to any one of claims 16 to 25, or The method of any one of claims 26 to 38.