CN117692092A

CN117692092A - Communication method and device

Info

Publication number: CN117692092A
Application number: CN202211032163.9A
Authority: CN
Inventors: 马大为
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2024-03-12
Also published as: WO2024041465A1

Abstract

The application provides a communication method and device, which relate to the field of wireless communication, and a terminal device and a network device can determine whether each physical channel belongs to an effective physical channel according to PRB in time-frequency resources occupied by each physical channel, so that the situation that uplink sub-bands in downlink symbols cannot be used for uplink transmission and downlink sub-bands in the uplink symbols cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling time delay can be reduced.

Description

Communication method and device

Technical Field

The present disclosure relates to the field of mobile communications technologies, and in particular, to a communication method and device.

Background

In the existing communication system, the time division duplex (Time Division Duplex, TDD) system may cause an increase in service scheduling delay compared to the frequency division duplex (Frequency Division Duplex, FDD) system. In order to solve the time delay problem caused by the TDD system, one possible way is to introduce full duplex of the subbands, i.e. subdivide the working bandwidth into a plurality of subbands, and flexibly configure the uplink and downlink proportions of each subband.

In the conventional TDD system, a network device or a terminal device determines whether a physical channel is valid by determining an uplink/downlink direction of a symbol (symbol), thereby determining whether to transmit or receive.

However, in the full duplex scenario, if the network device or the terminal device still determines whether the physical channel is valid according to the uplink and downlink directions of the symbol, the uplink sub-band in the downlink symbol cannot be used for uplink transmission, and the downlink sub-band in the uplink symbol cannot be used for uplink transmission, so that flexibility of service scheduling is limited.

Disclosure of Invention

The application provides a communication method and equipment, which can solve the technical problem of lower flexibility of service scheduling in a full duplex scene in the prior art.

In a first aspect, the present application provides a communication method, the method comprising:

determining whether a physical channel belongs to an effective physical channel according to physical resource blocks (Physical Resource Block, PRB) in time-frequency resources occupied by the physical channel;

and if the physical channel belongs to the effective physical channel, transmitting the physical channel to the terminal equipment.

In some embodiments, before determining whether the physical channel belongs to the valid physical channel according to the PRBs in the time-frequency resource occupied by the physical channel, the method further includes:

and sending first information to the terminal equipment, wherein the first information comprises time-frequency resource information or scheduling information of at least one physical channel.

In some embodiments, the physical channel is a physical downlink channel, and the determining whether the physical channel belongs to an effective physical channel according to PRBs in a time-frequency resource occupied by the physical channel includes:

determining whether an uplink PRB exists in time-frequency resources occupied by the physical downlink channel candidates according to the first information;

if the time-frequency resource occupied by the physical downlink channel candidate does not have the uplink PRB, determining that the physical downlink channel candidate belongs to an effective physical downlink channel candidate;

and if the uplink PRB exists in the time-frequency resource occupied by the physical downlink channel candidate, determining that the physical downlink channel candidate belongs to an invalid physical downlink channel candidate.

In some embodiments, the physical downlink channel includes a physical downlink control channel (Physical Downlink Control Channel, PDCCH), and the first information includes time-frequency resource information of at least one PDCCH candidate;

and/or, the physical downlink channel comprises a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), and the first information comprises scheduling information of at least one PDSCH.

In some embodiments, the physical channel is a physical uplink channel, and the determining whether the physical channel belongs to an effective physical channel according to PRBs in a time-frequency resource occupied by the physical channel includes:

Determining whether downlink PRB exists in time-frequency resources occupied by the physical uplink channel according to the first information;

if no downlink PRB exists in the time-frequency resource occupied by the physical uplink channel, determining that the physical uplink channel belongs to an effective physical uplink channel;

if the downlink PRB exists in the time-frequency resource occupied by the physical uplink channel, determining that the physical uplink channel belongs to an invalid physical uplink channel.

In some embodiments, the physical uplink channel includes a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), and the first information includes scheduling information of at least one PUSCH;

and/or, the physical uplink channel comprises a physical uplink control channel (Physical Uplink Control Channel, PUCCH), and the first information comprises scheduling information of at least one PUCCH.

In a second aspect, the present application provides a communication method, the method comprising:

determining whether a physical channel belongs to an effective physical channel according to PRB in time-frequency resources occupied by the physical channel;

and if the physical channel belongs to an effective physical channel, transmitting the physical channel to network equipment.

and receiving first information sent by the network equipment, wherein the first information comprises time-frequency resource information or scheduling information of at least one physical channel.

In some embodiments, the physical downlink channel includes a PDCCH, and the first information includes time-frequency resource information of at least one PDCCH candidate;

And/or the physical downlink channel comprises a PDSCH, and the first information comprises scheduling information of at least one PDSCH.

In some embodiments, the physical uplink channel includes a PUSCH, and the first information includes scheduling information of at least one PUSCH;

and/or the physical uplink channel comprises a PUCCH, and the first information comprises scheduling information of at least one PUCCH.

In a third aspect, the present application provides a communication method, the method comprising:

transmitting first information to a terminal device, wherein the first information is used for indicating that at least one symbol is not used for receiving a downlink signal or not used for transmitting an uplink signal;

The symbol indicated by the first information and not used for receiving the downlink signal is an uplink symbol only including uplink PRBs; the symbol indicated by the first information and not used for sending the uplink signal is a downlink symbol only including downlink PRBs.

In some embodiments, the first information is downlink control information (Downlink Control Information, DCI), where the DCI includes downlink reception preemption indication information, and no uplink symbol including only uplink PRBs exists in a symbol indicated by the downlink preemption indication information.

In some embodiments, the first information is DCI, the DCI includes uplink transmission cancellation indication information, and no downlink symbol including only downlink PRBs exists in a symbol indicated by the uplink transmission cancellation indication information.

In a fourth aspect, the present application provides a communication method, the method comprising:

receiving first information sent by network equipment, wherein the first information is used for indicating that at least one symbol is not used for receiving downlink signals or not used for sending uplink signals; the symbol indicated by the first information and not used for receiving the downlink signal is an uplink symbol only including uplink PRBs; the symbol indicated by the first information and not used for sending the uplink signal is a downlink symbol only comprising downlink PRB;

And stopping receiving the downlink signal on the at least one symbol or stopping sending the uplink signal on the at least one symbol according to the first information.

In some embodiments, the first information is DCI, where the DCI includes downlink reception preemption indication information, and no uplink symbol including only uplink PRBs exists in a symbol indicated by the downlink preemption indication information.

In a fifth aspect, the present application provides a communication device comprising:

a determining module, configured to determine whether a physical channel belongs to an effective physical channel according to PRBs in a time-frequency resource occupied by the physical channel;

and the transmission module is used for transmitting the physical channel to the terminal equipment if the physical channel belongs to an effective physical channel.

In a sixth aspect, the present application provides a communication device comprising:

And the transmission module is used for transmitting the physical channel to the network equipment if the physical channel belongs to an effective physical channel.

In a seventh aspect, the present application provides a communication apparatus comprising:

a transmitting module, configured to transmit first information to a terminal device, where the first information is used to indicate that at least one symbol is not used to receive a downlink signal or is not used to transmit an uplink signal;

In an eighth aspect, the present application provides a communication apparatus comprising:

a receiving module, configured to receive first information sent by a network device, where the first information is used to indicate that at least one symbol is not used to receive a downlink signal or is not used to send an uplink signal; the symbol indicated by the first information and not used for receiving the downlink signal is an uplink symbol only including uplink PRBs; the symbol indicated by the first information and not used for sending the uplink signal is a downlink symbol only comprising downlink PRB;

And the receiving module is further configured to stop receiving the downlink signal on the at least one symbol or stop sending the uplink signal on the at least one symbol according to the first information.

In a ninth aspect, the present application provides a network device, comprising: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executes computer-executable instructions stored by the memory, causing the at least one processor to perform a communication method as provided in the first aspect, or a communication method as provided in the third aspect.

In a tenth aspect, the present application provides a terminal device, including: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executes computer-executable instructions stored by the memory to cause the at least one processor to perform a communication method as provided in the second aspect or a communication method as provided in the fourth aspect.

In an eleventh aspect, the present application provides a computer-readable storage medium having stored therein computer-executable instructions that, when executed by a computer, implement a communication method as above.

In a twelfth aspect, the present application provides a computer program product comprising a computer program which, when executed by a computer, implements a communication method as above.

In a thirteenth aspect, the present application provides a communication system comprising a network device as provided in the ninth aspect and a terminal device as provided in the tenth aspect.

According to the communication method and the communication device, whether the physical channel belongs to the effective physical channel is determined according to the PRB in the time-frequency resource occupied by the physical channel, so that the situation that an uplink sub-band in a downlink symbol cannot be used for uplink transmission and a downlink sub-band in the uplink symbol cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling time delay can be reduced.

Drawings

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

fig. 2a to fig. 2d are schematic diagrams of several transmission resource configurations according to embodiments of the present application;

fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 4 is a second flow chart of a communication method according to an embodiment of the present application;

fig. 5 is a flowchart of a communication method according to an embodiment of the present application;

Fig. 6 is a flow chart diagram of a communication method according to an embodiment of the present application;

fig. 7 is a schematic hardware structure of an electronic device according to an embodiment of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure. Furthermore, while the disclosure is presented in the context of an exemplary embodiment or embodiments, it should be appreciated that the various aspects of the disclosure may, separately, comprise a complete embodiment.

It should be noted that the brief description of the terms in the present application is only for convenience in understanding the embodiments described below, and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprise" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The term "module" as used in this application refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the function associated with that element.

The embodiments of the present application can be applied to various wireless communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system over unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system over unlicensed spectrum, or other communication system, etc.

In general, the conventional wireless communication system supports a limited number of connections and is easy to implement, however, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example: device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), and inter-Vehicle (Vehicle to Vehicle, V2V) communication, vehicle-to-anything (V2X) communication, etc., embodiments of the present application may also be applied to these communication systems.

Optionally, the wireless communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, and a Stand Alone (SA) networking scenario.

Referring to fig. 1, fig. 1 is a schematic architecture diagram of a wireless communication system according to an embodiment of the present application. The wireless communication system provided in the present embodiment includes a terminal device 101 and a network device 102.

Alternatively, the terminal device 101 may be various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a remote station, a remote terminal, a mobile device, a wireless communication device, a User agent, or a User Equipment. But also cellular phones, cordless phones, session initiation protocol (Session Initiation Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, palm top computers (Personal Digital Assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, car-mounted devices, wearable devices, terminal devices in future 5G networks or terminal devices in future evolving public land mobile communication networks (Public Land Mobile Network, PLMNs), etc., as long as the terminal devices are capable of wireless communication with network device 102.

Optionally, the network device 102, i.e. public mobile communication network device, is an interface device for accessing the internet by the terminal device 101, and is also a form of a radio Station, which refers to a radio transceiver Station for performing information transfer with the terminal device in a certain radio coverage area, and includes a Base Station (BS), which may also be referred to as a Base Station device, and is an apparatus deployed in a radio access network (Radio Access Network, RAN) to provide a wireless communication function. For example, the device for providing a base station function in the 2G network includes a base radio transceiver station (Base Transceiver Station, BTS), the device for providing a base station function in the 3G network includes a node B (NodeB), the device for providing a base station function in the 4G network includes an evolved NodeB (eNB), the device for providing a base station function in the wireless local area network (Wireless Local Area Networks, WLAN) is an Access Point (AP), the device for providing a base station function in the 5G NR is a nb, and the node B (ng-eNB) continues to evolve, wherein the nb and the terminal device communicate using NR technology, the ng-eNB and the terminal device communicate using evolved universal terrestrial radio Access network (Evolved Universal Terrestrial Radio Access, E-UTRA) technology, and the nb and the ng-eNB are both connectable to the 5G core network. The network device 103 in the embodiment of the present application also includes a device that provides a base station function in a new communication system in the future, and the like.

The embodiment of the application defines a unidirectional communication link from an access network to terminal equipment as Downlink (DL), wherein data transmitted on the Downlink is Downlink data, and the transmission direction of the Downlink data is called as Downlink direction; and the unidirectional communication link from the terminal equipment to the access network is Uplink (UL), the data transmitted on the Uplink is Uplink data, and the transmission direction of the Uplink data is called as Uplink direction.

In a conventional TDD system, the uplink and downlink timeslot proportioning is wideband, i.e., the entire operating bandwidth is uplink or downlink in each timeslot. When one slot is downlink, it cannot be used to transmit uplink data, and vice versa. Therefore, the conventional TDD system may bring about an increase in traffic scheduling delay compared to the FDD system.

In order to overcome the time delay problem caused by the traditional TDD system, one possible way is to introduce full duplex of the sub-bands, i.e. subdivide the working bandwidth into a plurality of sub-bands, and flexibly configure the uplink and downlink proportions of each sub-band.

For a better understanding of the embodiments of the present application, reference is made to fig. 2a to 2d, and fig. 2a to 2d are schematic diagrams of several transmission resource configurations provided in the embodiments of the present application.

In fig. 2a to 2D, "D" represents a downlink subband and "U" represents an uplink subband.

The base station divides the frequency domain resource into different sub-bands, and simultaneously performs downlink transmission and uplink reception on the different sub-bands, so that half duplex is still supported for the terminal device, and only downlink reception can be performed on the downlink sub-band or uplink transmission can be performed on the uplink sub-band at a certain time point.

In the existing standard, the network device and the terminal device determine whether a physical channel or a reference signal is valid by determining the uplink and downlink directions of the symbol, so as to determine whether to transmit or receive, for example:

1. when the network device schedules one or more PUSCHs to the terminal device, for each PUSCH transmission occasion, if one of the occupied symbols is a downlink symbol, the PUSCH transmission occasion is an invalid PUSCH transmission occasion.

Accordingly, when the network device schedules a plurality of PUSCHs to the terminal device, a hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) process Identification (ID) in the scheduling information (hereinafter referred to as HARQ process ID) is applied to the first valid PUSCH transmission occasion, and the HARQ process ID only increments the valid PUSCH transmission occasion.

2. When the network device schedules one or more PDSCH to the terminal device, for each PDSCH transmission opportunity, if one of the occupied symbols is an uplink symbol, the PDSCH transmission opportunity is an invalid PDSCH transmission opportunity.

Accordingly, when the network device schedules multiple PDSCH to the terminal device, the HARQ process ID in the scheduling information is applied to the first valid PDSCH transmission occasion, and the HARQ process ID is incremented only for the valid PDSCH transmission occasion.

3. When the network device configures the PDCCH to the terminal device, for each PDCCH candidate, if one of the occupied symbols is an uplink symbol, the PDCCH candidate is an invalid PDCCH candidate.

4. When the network device schedules one or more PUCCHs to the terminal device, for the scheduled PUCCH transmission occasion, if one of the symbols occupied by the scheduled PUCCH transmission occasion is a downlink symbol, the PUCCH transmission occasion is an invalid PUCCH transmission occasion.

5. When the network equipment sends the downlink receiving preemption indication information to the terminal equipment, the indicated symbol does not contain an uplink symbol.

6. When the network device sends the uplink sending cancellation indication information to the terminal device, the indicated symbol does not contain downlink symbols.

However, in the full duplex scenario, if the network device and the terminal device still determine whether the physical channel or the reference signal is valid according to the uplink and downlink directions of the symbol, the uplink sub-band in the downlink symbol cannot be used for uplink transmission, and the downlink sub-band in the uplink symbol cannot be used for uplink transmission, thereby limiting the scheduling flexibility.

In view of the above technical problems, embodiments of the present application provide a communication method and device, where network devices and terminal devices may determine whether a physical channel belongs to an effective physical channel according to PRBs in time-frequency resources occupied by the physical channel, so as to avoid situations that an uplink subband in a downlink symbol cannot be used for uplink transmission and a downlink subband in the uplink symbol cannot be used for uplink transmission, which not only can improve flexibility of service scheduling, but also can reduce scheduling delay. The following will explain in detail the embodiments.

Referring to fig. 3, fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present application.

Alternatively, the above communication method may be performed by a network device, or may be performed by a chip or a specific module in the network device, which is not limited in the embodiment of the present application.

In one possible embodiment, the method comprises:

s301, determining whether a physical channel belongs to an effective physical channel according to PRB in time-frequency resources occupied by the physical channel.

In some embodiments, the network device may send first information to the terminal device, where the first information includes time-frequency resource information or scheduling information of at least one physical channel.

The network device determines whether each physical channel belongs to an effective physical channel according to the uplink and downlink directions of the PRB in the time-frequency resource occupied by each physical channel.

For example, for a physical downlink channel, if there is an uplink PRB in the occupied time-frequency resource, it may be determined that the physical downlink channel belongs to an invalid physical channel; if the occupied time-frequency resource does not have the uplink PRB, the physical downlink channel can be determined to belong to an effective physical channel.

For a physical uplink channel, if downlink PRB exists in the occupied time-frequency resource, determining that the physical uplink channel belongs to an invalid physical channel; if the occupied time-frequency resource does not have the downlink PRB, the physical uplink channel can be determined to belong to an effective physical channel.

S302, if the physical channel belongs to an effective physical channel, transmitting the physical channel to a terminal device.

In some embodiments, after the network device determines whether each physical channel is valid, it is only necessary to transmit each valid physical channel to the terminal device, and not to transmit a valid physical channel to the terminal device.

It can be understood that, in the embodiment of the present application, whether the physical channel belongs to an effective physical channel is determined based on the uplink and downlink directions of the PRBs in the time-frequency resource occupied by the physical channel, and compared with the conventional manner of determining whether the physical channel belongs to the effective physical channel according to the uplink and downlink directions of the symbol, the embodiment of the present application can implement uplink transmission by using the uplink sub-band in the downlink symbol and uplink transmission by using the downlink sub-band in the uplink symbol.

According to the communication method provided by the embodiment of the application, the network equipment determines whether the physical channel belongs to an effective physical channel through the PRB in the time-frequency resource occupied by the physical channel, so that the situation that an uplink sub-band in a downlink symbol cannot be used for uplink transmission and a downlink sub-band in the uplink symbol cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling time delay can be reduced.

Based on the descriptions in the above embodiments, in some embodiments of the present application, when determining whether a physical channel belongs to a valid physical channel, the network device may be divided into the following two cases:

case one: the physical channel is a physical downlink channel.

According to the first information, the network equipment determines whether an uplink PRB exists in the time-frequency resource occupied by the physical downlink channel candidate; if the physical downlink channel candidate occupies the time-frequency resource without the uplink PRB, determining that the physical downlink channel candidate belongs to an effective physical downlink channel candidate; and if the uplink PRB exists in the time-frequency resource occupied by the physical downlink channel candidate, determining that the physical downlink channel candidate belongs to an invalid physical downlink channel candidate.

Optionally, the physical downlink channel may include PDCCH, and the first information includes time-frequency resource information of at least one PDCCH candidate; and/or the physical downlink channel includes PDSCH, and the first information includes scheduling information of at least one PDSCH.

For example, for each PDCCH candidate, if the occupied time-frequency resource contains uplink PRBs, the PDCCH candidate is an invalid PDCCH candidate; for each PDSCH transmission occasion, if the occupied time-frequency resource contains uplink PRBs, the PDSCH transmission occasion is an invalid PDSCH transmission occasion.

In some embodiments, when the first information schedules multiple PDSCH, the HARQ process ID in the scheduling information is applied to the first valid PDSCH transmission occasion, and the HARQ process ID is incremented only for the valid PDSCH transmission occasion.

And a second case: the physical channel is a physical uplink channel.

The network equipment determines whether downlink PRB exists in time-frequency resources occupied by the physical uplink channel according to the first information; if no downlink PRB exists in the time-frequency resource occupied by the physical uplink channel, determining that the physical uplink channel belongs to an effective physical uplink channel; if there is a downlink PRB in the time-frequency resource occupied by the physical uplink channel, determining that the physical uplink channel belongs to an invalid physical uplink channel.

Optionally, the physical uplink channel includes a PUSCH, and the first information includes scheduling information of at least one PUSCH; and/or, the physical uplink channel includes a PUCCH, and the first information includes scheduling information of at least one PUCCH.

For example, for each PUSCH transmission opportunity, if the occupied time-frequency resource includes downlink PRBs, the PUSCH transmission opportunity is an invalid PUSCH transmission opportunity; for each PUCCH transmission occasion, if the occupied time-frequency resource includes a downlink PRB, the PUCCH transmission occasion is an invalid PUCCH transmission occasion.

In some embodiments, when the first information schedules a plurality of PUSCHs, the HARQ process ID in the scheduling information is applied to the first valid PUSCH transmission occasion, and the HARQ process ID increments only the valid PUSCH transmission occasion.

According to the communication method provided by the embodiment of the invention, the network equipment can determine whether the physical channel belongs to an effective physical channel according to the uplink and downlink directions of the physical channel and the PRB in the time-frequency resource occupied by the physical channel, so that the situation that an uplink sub-band in a downlink symbol cannot be used for uplink transmission and a downlink sub-band in the uplink symbol cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling time delay can be reduced.

Referring to fig. 4, fig. 4 is a second flow chart of a communication method according to an embodiment of the present application.

Alternatively, the above communication method may be executed by the terminal device, or may be executed by a chip or a specific module in the terminal device, which is not limited in the embodiment of the present application.

In one possible embodiment, the method comprises:

s401, determining whether the physical channel belongs to an effective physical channel according to PRB in time-frequency resources occupied by the physical channel.

In some embodiments, the terminal device receives first information sent by the network device, where the first information includes time-frequency resource information or scheduling information of at least one physical channel.

After receiving the first information, the terminal equipment determines the uplink and downlink directions of the PRB in the time-frequency resource occupied by each physical channel according to the first information, and determines whether each physical channel belongs to an effective physical channel according to the uplink and downlink directions of the PRB in the time-frequency resource occupied by each physical channel.

It may be understood that the manner in which the terminal device determines whether the physical channel belongs to the effective physical channel is consistent with the manner in which the network device determines whether the physical channel belongs to the effective physical channel described in the foregoing embodiment, and specific reference may be made to the description in the foregoing embodiment, which is not repeated herein.

S402, if the physical channel belongs to an effective physical channel, transmitting the physical channel to network equipment.

In some embodiments, after the terminal device determines whether each physical channel is valid, it is only necessary to transmit each valid physical channel to the network device, and not to transmit a valid physical channel to the network device.

According to the communication method provided by the embodiment of the application, the terminal equipment determines whether the physical channel belongs to an effective physical channel through the PRB in the time-frequency resource occupied by the physical channel, so that the situation that uplink sub-bands in downlink symbols cannot be used for uplink transmission and the situation that downlink sub-bands in the uplink symbols cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling time delay can be reduced.

Referring to fig. 5, fig. 5 is a flowchart illustrating a communication method according to an embodiment of the present application.

In one possible embodiment, the method comprises:

s501, sending first information to terminal equipment, wherein the first information is used for indicating that at least one symbol is not used for receiving downlink signals or sending uplink signals; wherein, the symbol indicated by the first information and not used for receiving the downlink signal is an uplink symbol only including uplink PRBs; the symbol indicated by the first information and not used for transmitting the uplink signal is a downlink symbol including only downlink PRBs.

In the embodiment of the present application, an uplink symbol including only an uplink PRB may be indicated as a symbol that is not used for receiving a downlink signal, and an uplink symbol including an uplink PRB and a downlink PRB may be used as a symbol for receiving a downlink signal.

Similarly, a downlink symbol including only a downlink PRB may be indicated as a symbol not used for transmitting an uplink signal, and a downlink symbol including both an uplink PRB and a downlink PRB may be indicated as a symbol used for transmitting an uplink signal.

In some embodiments, the first information may be DCI.

Alternatively, the DCI may include downlink reception preemption indication information, where no uplink symbol including only uplink PRBs exists in the symbols indicated by the downlink preemption indication information.

Alternatively, the DCI may include uplink transmission cancellation indication information, where no downlink symbol including only downlink PRBs exists in the symbols indicated by the uplink transmission cancellation indication information.

According to the communication method provided by the embodiment of the invention, the network equipment can indicate whether each symbol of the terminal equipment is not used for receiving the downlink signal or transmitting the uplink signal according to the uplink and downlink directions of the PRB in the symbol, so that the situation that the uplink sub-band in the downlink symbol cannot be used for uplink transmission and the downlink sub-band in the uplink symbol cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling delay can be reduced.

Referring to fig. 6, fig. 6 is a flow chart of a communication method according to an embodiment of the present application.

In one possible embodiment, the method comprises:

s601, receiving first information sent by network equipment, wherein the first information is used for indicating that at least one symbol is not used for receiving downlink signals or not used for sending uplink signals; the symbol indicated by the first information and not used for receiving the downlink signal is an uplink symbol only including uplink PRBs; the symbol indicated by the first information and not used for sending the uplink signal is a downlink symbol only including downlink PRBs.

In some embodiments, the first information may be DCI.

S602, according to the first information, stopping receiving the downlink signal on the at least one symbol, or stopping sending the uplink signal on the at least one symbol.

In some embodiments, after receiving the first information sent by the network device, the terminal device determines, according to the first information, a symbol that is not used for receiving a downlink signal or is not used for sending an uplink signal, and stops receiving the downlink signal on the symbol that is not used for receiving the downlink signal, or stops sending the uplink signal on the symbol that is not used for sending the uplink signal.

According to the communication method provided by the embodiment of the application, the terminal equipment can determine whether each symbol is not used for receiving the downlink signal or transmitting the uplink signal according to the indication information transmitted by the network equipment, so that the situations that the uplink sub-band in the downlink symbol cannot be used for uplink transmission and the downlink sub-band in the uplink symbol cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling delay can be reduced.

Based on the foregoing description of the foregoing embodiments, there is further provided in an embodiment of the present application a communication apparatus, which is applied to a network device, where the communication apparatus includes:

In some embodiments, the communication device further includes:

and the sending module is used for sending first information to the terminal equipment, wherein the first information comprises time-frequency resource information or scheduling information of at least one physical channel.

In some embodiments, the physical channel is a physical downlink channel, and the determining module is specifically configured to:

In some embodiments, the physical downlink channel includes a PDCCH, and the first information includes time-frequency resource information of at least one PDCCH candidate; and/or the physical downlink channel comprises a PDSCH, and the first information comprises scheduling information of at least one PDSCH.

In some embodiments, the physical channel is a physical uplink channel, and the determining module is specifically configured to:

In some embodiments, the physical uplink channel includes a PUSCH, and the first information includes scheduling information of at least one PUSCH; and/or the physical uplink channel comprises a PUCCH, and the first information comprises scheduling information of at least one PUCCH.

According to the communication device provided by the embodiment of the application, whether the physical channel belongs to an effective physical channel can be determined according to the uplink and downlink directions of the physical channel and the uplink and downlink directions of the PRB in the time-frequency resource occupied by the physical channel, so that the situation that an uplink sub-band in a downlink symbol cannot be used for uplink transmission and a downlink sub-band in the uplink symbol cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling time delay can be reduced.

Based on the foregoing description of the embodiments, there is further provided a communication device in the embodiments of the present application, where the communication device is applied to a terminal device, and the communication device includes:

In some embodiments, the communication device further includes:

and the receiving module is used for receiving first information sent by the network equipment, wherein the first information comprises time-frequency resource information or scheduling information of at least one physical channel.

According to the communication device provided by the embodiment of the application, whether the physical channel belongs to the effective physical channel is determined through the PRB in the time-frequency resource occupied by the physical channel, so that the situation that the uplink sub-band in the downlink symbol cannot be used for uplink transmission and the downlink sub-band in the uplink symbol cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling time delay can be reduced.

a transmitting module, configured to transmit first information to a terminal device, where the first information is used to indicate that at least one symbol is not used to receive a downlink signal or is not used to transmit an uplink signal; the symbol indicated by the first information and not used for receiving the downlink signal is an uplink symbol only including uplink PRBs; the symbol indicated by the first information and not used for sending the uplink signal is a downlink symbol only including downlink PRBs.

In some embodiments, the DCI includes uplink transmission cancellation indication information, and no downlink symbol including only downlink PRBs exists in a symbol indicated by the uplink transmission cancellation indication information.

According to the communication device provided by the embodiment of the application, whether each symbol of the terminal equipment is not used for receiving downlink signals or transmitting uplink signals can be indicated according to the uplink and downlink directions of the PRB in the symbol, so that the situation that an uplink sub-band in a downlink symbol cannot be used for uplink transmission and a downlink sub-band in the uplink symbol cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling delay can be reduced.

a receiving module, configured to receive first information sent by a network device, where the first information is used to indicate that at least one symbol is not used to receive a downlink signal or is not used to send an uplink signal; the symbol indicated by the first information and not used for receiving the downlink signal is an uplink symbol only including uplink PRBs; the symbol indicated by the first information and not used for sending the uplink signal is a downlink symbol only including downlink PRBs.

According to the communication device provided by the embodiment of the application, whether each symbol is not used for receiving a downlink signal or transmitting an uplink signal can be determined according to the indication information transmitted by the network equipment, so that the situation that an uplink sub-band in a downlink symbol cannot be used for uplink transmission and a downlink sub-band in the uplink symbol cannot be used for uplink transmission can be avoided, the flexibility of service scheduling can be improved, and the scheduling delay can be reduced.

The communication apparatus described in the above embodiments may include each module, which may be a software module, a hardware module, or a part of a software module and a part of a hardware module. For example, for each device or product applied to or integrated in a chip, each module included in the device or product may be implemented in hardware such as a circuit, or at least some modules may be implemented in software program, where the software program runs on a processor integrated in the chip, and the remaining (if any) some modules may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module contained in the device and product can be realized in a hardware mode such as a circuit, different modules can be located in the same component (such as a chip and a circuit module) of the chip module or in different components, or at least part of the modules can be realized in a software program, the software program runs in a processor integrated in the chip module, and the rest (if any) of the modules can be realized in a hardware mode such as a circuit; for each device or product applied to or integrated in the terminal, the included modules may all be implemented in hardware such as a circuit, and different modules may be located in the same component (e.g. a chip, a circuit module, etc.) or different components in the terminal, or at least some modules may be implemented in a software program, where the software program runs on a processor integrated in the terminal, and the remaining (if any) some modules may be implemented in hardware such as a circuit.

Further, based on the descriptions in the above embodiments, there is also provided a network device in the embodiments of the present application, where the network device includes at least one processor and a memory; wherein the memory stores computer-executable instructions; the at least one processor executes computer-executable instructions stored in the memory to perform steps performed by the network device in the communication method as described above.

Further, based on the descriptions in the above embodiments, there is also provided a terminal device in the embodiments of the present application, where the terminal device includes at least one processor and a memory; wherein the memory stores computer-executable instructions; the at least one processor executes computer-executable instructions stored in the memory to perform steps performed by the terminal device in the communication method as described above.

For a better understanding of the embodiments of the present application, referring to fig. 7, fig. 7 is a schematic hardware structure of an electronic device according to the embodiments of the present application. The electronic device may be the network device or the terminal device.

As shown in fig. 7, the electronic apparatus 70 of the present embodiment includes: a processor 701 and a memory 702; wherein the method comprises the steps of

A memory 702 for storing computer-executable instructions;

a processor 701 for executing computer-executable instructions stored in a memory to implement the steps executed by the network device in the communication method described in the above embodiment; alternatively, the steps performed by the terminal device in the communication method described in the foregoing embodiment may be implemented, and specific reference may be made to the description related to the foregoing method embodiment.

Alternatively, the memory 702 may be separate or integrated with the processor 701.

When the memory 702 is provided separately, the device further comprises a bus 703 for connecting said memory 702 to the processor 701.

The embodiments of the present application provide a computer-readable storage medium having stored therein computer-executable instructions that, when executed by a computer, implement the steps performed by a network device in the communication method described in the above embodiments.

The present embodiment provides a computer-readable storage medium having stored therein computer-executable instructions that, when executed by a computer, implement the steps performed by a terminal device in the communication method described in the above embodiment.

The embodiments of the present application provide a computer program product comprising a computer program which, when executed by a computer, implements the steps performed by a network device in a communication method as described in the above embodiments.

The embodiments of the present application provide a computer program product comprising a computer program which, when executed by a computer, implements the steps performed by a terminal device in a communication method as described in the above embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple modules may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.

The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated in one processing unit, or each module may exist alone physically, or two or more modules may be integrated in one unit. The units formed by the modules can be realized in a form of hardware or a form of hardware and software functional units.

The integrated modules, which are implemented in the form of software functional modules, may be stored in a computer readable storage medium. The software functional modules described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or processor to perform some of the steps of the methods described in various embodiments of the present application.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like, which can store program codes.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of communication, the method comprising:

determining whether a physical channel belongs to an effective physical channel according to a physical resource block PRB in time-frequency resources occupied by the physical channel;

2. The method according to claim 1, wherein the determining whether the physical channel belongs to a valid physical channel based on PRBs in time-frequency resources occupied by the physical channel further comprises:

3. The method according to claim 2, wherein the physical channel is a physical downlink channel, and the determining whether the physical channel belongs to an effective physical channel according to PRBs in a time-frequency resource occupied by the physical channel includes:

4. The method of claim 3, wherein the physical downlink channel comprises a physical downlink control channel PDCCH, and the first information comprises time-frequency resource information of at least one PDCCH candidate;

and/or the physical downlink channel comprises a physical downlink shared channel PDSCH, and the first information comprises scheduling information of at least one PDSCH.

5. The method according to claim 2, wherein the physical channel is a physical uplink channel, and the determining whether the physical channel belongs to an effective physical channel according to PRBs in a time-frequency resource occupied by the physical channel includes:

6. The method of claim 5, wherein the physical uplink channel comprises a physical uplink shared channel, PUSCH, and the first information comprises scheduling information of at least one PUSCH;

And/or the physical uplink channel comprises a Physical Uplink Control Channel (PUCCH), and the first information comprises scheduling information of at least one PUCCH.

7. A method of communication, the method comprising:

8. The method according to claim 7, wherein the determining whether the physical channel belongs to a valid physical channel based on PRBs in time-frequency resources occupied by the physical channel further comprises:

9. The method according to claim 8, wherein the physical channel is a physical downlink channel, and the determining whether the physical channel belongs to an effective physical channel according to PRBs in a time-frequency resource occupied by the physical channel includes:

10. The method of claim 9, wherein the physical downlink channel comprises a PDCCH, and the first information comprises time-frequency resource information of at least one of the PDCCH candidates;

11. The method according to claim 8, wherein the physical channel is a physical uplink channel, and the determining whether the physical channel belongs to an effective physical channel according to PRBs in a time-frequency resource occupied by the physical channel includes:

12. The method of claim 11, wherein the physical uplink channel comprises a PUSCH, and the first information comprises scheduling information of at least one PUSCH;

13. A method of communication, the method comprising:

14. The method of claim 13, wherein the first information is downlink control information, DCI, the DCI including downlink receive preemption indication information, and no uplink symbol including only uplink PRBs exists in symbols indicated by the downlink preemption indication information.

15. The method of claim 13, wherein the first information is DCI, the DCI includes uplink transmission cancellation indication information, and no downlink symbol including only downlink PRBs exists in symbols indicated by the uplink transmission cancellation indication information.

16. A method of communication, the method comprising:

17. The method of claim 16, wherein the first information is DCI, the DCI includes downlink receive preemption indication information, and no uplink symbol including only uplink PRBs exists in symbols indicated by the downlink preemption indication information.

18. The method of claim 16, wherein the first information is DCI, the DCI includes uplink transmission cancellation indication information, and no downlink symbol including only downlink PRBs exists in symbols indicated by the uplink transmission cancellation indication information.

19. A communication device, the device comprising:

20. A communication device, the device comprising:

21. A communication device, the device comprising:

22. A communication device, the device comprising:

23. A network device, comprising: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executing computer-executable instructions stored in the memory causes the at least one processor to perform the communication method of any one of claims 1 to 6 or the communication method of any one of claims 13 to 15.

24. A terminal device, comprising: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executing computer-executable instructions stored in the memory causes the at least one processor to perform the communication method of any one of claims 7 to 12, or the communication method of any one of claims 16 to 18.

25. A computer-readable storage medium having stored therein computer-executable instructions that, when executed by a computer, implement the communication method of any one of claims 1 to 18.

26. A computer program product comprising a computer program which, when executed by a computer, implements the communication method of any of claims 1 to 18.