WO2023103907A1

WO2023103907A1 - Communication method and apparatus

Info

Publication number: WO2023103907A1
Application number: PCT/CN2022/136201
Authority: WO
Inventors: 雷珍珠
Original assignee: 展讯半导体(南京)有限公司
Priority date: 2021-12-06
Filing date: 2022-12-02
Publication date: 2023-06-15
Also published as: CN116249204A

Abstract

A communication method and apparatus, which relate to the technical field of communications. The method comprises: a terminal device receiving first resource indication information from a first network device, wherein the first resource indication information is used for indicating N first resources, and N is a positive integer greater than or equal to 2; the terminal device receiving second resource indication information from a second network device, wherein the second resource indication information is used for indicating a second resource; and the terminal device performing uplink communication with the first network device on at least one of the N first resources, and performing uplink communication with the second network device on the second resource, wherein the second resource does not overlap with the at least one first resource in a time domain. Such a technical solution facilitates, in a scenario where the TA phase difference varies greatly in the communication in which dual connectivity is introduced, the reduction in cross-modulation interference between uplink communication and downlink communication, and the success rate of communication is improved to a certain extent.

Description

Communication method and device

This application claims the priority of a Chinese patent application with application number 202111472365.0 and application title "Communication Method and Device" filed with the China Patent Office on December 06, 2021, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of communication, and in particular to a communication method and device.

Background technique

In wireless communication, in order to increase system capacity and enhance network coverage, dual connectivity (Dual Connectivity, DC) is introduced to enable terminal devices to communicate with two network devices at the same time. For example, a terminal device can communicate with network device 1 and network device 2 simultaneously, thereby achieving dual connectivity. Wherein, one of the network device 1 and the network device 2 is the primary network device of the terminal device, and the other network device is the secondary network device of the terminal device.

Take the resource used by the terminal device for uplink communication with network device 1 as resource 1 and the resource used by the terminal device for uplink communication with network device 2 as resource 2 as an example. If the frequency band where resource 1 is located is different from the frequency band where resource 2 is located, if the terminal device performs uplink communication with network device 1 and network device 2 at the same time, then the signal sent by the terminal device to network device 1 on resource 1 is the same as the signal sent by the terminal device on resource 2. The signals sent to the network device 2 can interact to generate new signals. When the frequency of this new signal falls on the frequency band where the resource used for downlink communication between the terminal device and network device 1 or network device 2 is located, it will cause interference to the downlink communication of the terminal device, that is, cause uplink communication and Intermodulation interference between downlink communications. In the prior art, in order to solve this problem, a time-division multiplexing (Time-Division Multiplexing, TDM) configuration is introduced to prevent the terminal device from performing uplink communication on resource 1 and resource 2 at the same time.

However, this method is only applicable to scenarios where the difference between the timing advance (Timing Advance, TA) between the terminal device and network device 1 and the TA between the terminal device and network device 2 does not change much during the communication process , for scenarios where the TA between the terminal device and network device 1 and the TA between the terminal device and network device 2 vary greatly, such as non-terrestrial network (Non-Terrestrial Networks, NTN) communication, the above method does not apply again.

Contents of the invention

The present application provides a communication method and device, which help to reduce the intermodulation interference between uplink communication and downlink communication in the scenario where the TA phase difference changes greatly in the introduction of dual connection communication, and improve the communication efficiency to a certain extent. Success rate.

In the first aspect, the embodiment of the present application provides a communication method, including:

The terminal device receives first resource indication information from the first network device, where the first resource indication information is used to indicate N first resources, where N is a positive integer greater than or equal to 2;

The terminal device receives second resource indication information from the second network device, where the second resource indication information is used to indicate the second resource;

The terminal device performs uplink communication with the first network device on at least one first resource among the N first resources, and performs uplink communication with the second network device on the second resource, and the second resource communicates with the at least one first resource at a time Domains do not overlap. In the embodiment of this application, when the terminal device is connected to the first network device and the second network device, the first network device can configure multiple first resources for the terminal device, so that the terminal device can combine with the first network device. The TA between the network device and the second network device selects the first resource that does not overlap or conflict with the second resource for uplink communication, thereby helping to reduce the number of terminal devices performing uplink with the first network device and the second network device at the same time During communication, the probability of intermodulation interference occurs, which in turn helps to improve communication performance.

In one of the possible implementation manners, the method further includes:

If the N first resources all overlap with the second resource in the time domain, the terminal device does not perform uplink communication with the first network device on the N first resources, or does not perform uplink communication with the second network device on the second resource. Therefore, the intermodulation interference between uplink communication and downlink communication can be further reduced.

In one of the possible implementations,

The first resource indication information is used to indicate N first resources, including:

The first resource indication information includes resource indication information and offset indication information, the resource indication information is used to indicate one of the N first resources, and the offset indication information is used to indicate the N first resources at the time The offset between two adjacent first resources on the domain. Thus, signaling overhead can be reduced.

In one of the possible implementations,

The resource indication information is used to indicate a first resource among the N first resources, including:

The resource indication information is used to indicate the first resource at the start position in the time domain among the N first resources.

In one of the possible implementations,

The offset indication information is used to indicate the offset between two adjacent first resources in the time domain among the N first resources, including:

The offset indication information is used to indicate a first value, and the first value is an offset between two adjacent first resources in the time domain among the N first resources. Thus, signaling overhead can be reduced.

In one possible implementation manner, N is predefined, or N is indicated to the terminal device by the first network device;

Wherein, N is a positive integer greater than 2. Thus, signaling overhead can be reduced.

In one of the possible implementations,

The offset indication information is used to indicate N-1 offset values, and the i-th offset value among the N-1 offset values is the same as the i-th first resource among the N first resources and the i+1-th The offset between the first resources, 1≤i≤N-1, and i is a positive integer. Thus, signaling overhead can be reduced.

In one possible implementation manner, the first network device is a secondary network device of the terminal device, and the second network device is a primary network device of the terminal device.

In the second aspect, the embodiment of the present application also provides a communication method, including:

The first network device generates first resource indication information, where the first resource indication information is used to indicate N first resources, where N is a positive integer greater than or equal to 2;

The first network device sends the first resource indication information to the terminal device, so that the terminal device can perform uplink communication with the first network device on at least one first resource among the N first resources, and at the same time perform uplink communication with the second network device communication.

In one possible implementation manner, performing uplink communication with the second network device includes:

Uplink communication is performed with the second network device on the second resource, and the first resource does not overlap with the second resource.

In one of the possible implementation manners, the method further includes:

If the N first resources overlap with the second resource in the time domain, the first network device does not perform uplink communication with the terminal device on the N first resources, or on at least one first resource among the N first resources While performing uplink communication with the terminal device, the terminal device is prevented from performing uplink communication with the second network device on the second resource.

In one of the possible implementation manners, the method further includes:

The first network device performs blind detection on the N first resources.

In one of the possible implementations,

The first resource indication information includes resource indication information and offset indication information, the resource indication information is used to indicate one of the N first resources, and the offset indication information is used to indicate the N first resources at the time The offset between two adjacent first resources on the domain.

In one of the possible implementations,

The offset indication information is used to indicate a first value, and the first value is an offset between two adjacent first resources in the time domain among the N first resources.

In one possible implementation manner, N is predefined, or the first network device indicates the N to the terminal device;

Wherein, N is a positive integer greater than 2.

In one of the possible implementations,

The offset indication information is used to indicate N-1 offset values, and the i-th offset value among the N-1 offset values is the same as the i-th first resource among the N first resources and the i+1-th The offset between the first resources, 1≤i≤N-1, and i is a positive integer.

In a third aspect, an embodiment of the present application provides a communication device, including: a processor and a memory, where the memory is used to store a computer program; and the processor is used to run the computer program to execute the method described in the first aspect.

In a fourth aspect, the embodiment of the present application further provides a communication device, including: a processor and a memory, where the memory is used to store a computer program; and the processor is used to run the computer program and execute the method as described in the second aspect.

In the fifth aspect, the embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when it is run on a computer, it realizes the above mentioned aspects from the first aspect to the second aspect. method.

In a sixth aspect, an embodiment of the present application provides a computer program product, the computer program product includes a computer program, and when the computer program is executed by a computer, the method described in the first aspect or the second aspect is implemented.

In a possible implementation manner, the program in the sixth aspect may be stored in whole or in part on a storage medium packaged with the processor, or stored in part or in whole in a memory not packaged with the processor.

Description of drawings

FIG. 1 is a schematic structural diagram of a wireless frame provided by an embodiment of the present application;

Figure 2 is a schematic diagram of the TA provided in the embodiment of the present application;

FIG. 3 is a schematic diagram of uplink resources in a dual connection scenario of terrestrial communication provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of uplink resources in a non-terrestrial communication dual connectivity scenario provided by an embodiment of the present application;

FIG. 5A is a schematic structural diagram of an embodiment of an application scenario provided by the present application;

FIG. 5B is a schematic structural diagram of another embodiment of the application scenario provided by the present application;

FIG. 5C is a schematic structural diagram of another embodiment of the application scenario provided by the present application;

FIG. 6 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of uplink resource overlap provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of uplink resource locations provided by an embodiment of the present application;

FIG. 9A is a schematic diagram of an embodiment of an offset indication method provided by the present application;

FIG. 9B is a schematic diagram of an embodiment of an offset indication method provided by the present application;

FIG. 10 is a schematic diagram of an embodiment of the first resource indication method provided by this application;

Fig. 11 is a schematic diagram of another embodiment of the first resource indication method provided by this application;

FIG. 12 is a schematic structural diagram of an embodiment of a communication device provided by the present application;

FIG. 13 is a schematic structural diagram of another embodiment of a communication device provided by the present application;

Fig. 14 is a schematic structural diagram of another embodiment of the communication device provided by the present application.

Detailed ways

In this embodiment of the application, unless otherwise specified, the character "/" indicates that the contextual objects are an OR relationship. For example, A/B can mean either A or B. "And/or" describes the association relationship of associated objects, indicating that there may be three kinds of relationships. For example, A and/or B may mean that A exists alone, A and B exist simultaneously, and B exists alone.

It should be pointed out that words such as "first" and "second" involved in the embodiments of the present application are only used for the purpose of distinguishing and describing, and should not be understood as indicating or implying relative importance or implicitly indicating the indicated technical features nor should they be construed as indicating or implying an order.

In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more. In addition, "at least one of the following" or similar expressions thereof refer to any combination of these items, and may include any combination of a single item or a plurality of items. For example, at least one item (one) of A, B or C may represent: A, B, C, A and B, A and C, B and C, or A, B and C. Wherein, each of A, B, and C can be an element itself, or a set containing one or more elements.

In the embodiments of the present application, "exemplary", "in some embodiments", "in another embodiment" and the like are used as examples, illustrations or illustrations. Any embodiment or design described herein as "example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present concepts in a concrete manner.

"of (of)", "corresponding (corresponding, relevant)" and "corresponding (corresponding)" in the embodiments of the present application can sometimes be mixed, and it should be pointed out that when the difference is not emphasized, the meaning to be expressed is consistent. In this embodiment of the present application, communication and transmission may sometimes be used interchangeably. It should be noted that when the difference is not emphasized, the meanings they express are consistent. For example, transmit may include send and/or receive and may be a noun or a verb.

The equals involved in the embodiments of the present application can be used in conjunction with greater than, applicable to the technical solution adopted when greater than, and can also be used in conjunction with less than, applicable to the technical solution adopted when less than. It should be noted that when equal to is used in conjunction with greater than, it cannot be used in conjunction with less than; when equal to is used in conjunction with less than, it cannot be used in conjunction with greater than.

Some of the terms involved in the embodiments of the present application are explained below to facilitate the understanding of those skilled in the art.

1. Terminal equipment. In the embodiment of the present application, the terminal device is a device with a wireless transceiver function, which can be referred to as a terminal (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), access terminal equipment, vehicle terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. . Terminal equipment can be fixed or mobile. It should be noted that the terminal device may support at least one wireless communication technology, such as LTE, new radio (new radio, NR), wideband code division multiple access (wideband code division multiple access, WCDMA), and the like. For example, the terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a desktop computer, a notebook computer, an all-in-one computer, a vehicle terminal, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation safety Wireless terminals in (transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless Local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDA), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, future mobile communications The terminal equipment in the network or the terminal equipment in the public mobile land network (public land mobile network, PLMN) that will evolve in the future, etc. In some embodiments of the present application, the terminal device may also be a device having a sending and receiving function, such as a chip system. Wherein, the chip system may include a chip, and may also include other discrete devices.

2. Network equipment. The network device in the embodiment of the present application is a device that provides a wireless communication function for a terminal device, and may also be referred to as an access network device, a radio access network (radio access network, RAN) device, or the like. Wherein, the network device may support at least one wireless communication technology, such as LTE, NR, WCDMA and so on. Exemplarily, the network equipment includes but is not limited to: a next-generation base station (generation nodeB, gNB), an evolved node B (evolved node B, eNB) in a fifth-generation mobile communication system (5th-generation, 5G), a wireless network control radio network controller (RNC), node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (baseband unit, BBU), transmitting and receiving point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center, etc. The network device may also be a wireless controller, a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device may It is a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, a network device in future mobile communications or a network device in a future evolved PLMN, etc. In some embodiments, the network device may also be an apparatus having a wireless communication function for the terminal device, such as a chip system. Exemplarily, the system-on-a-chip may include a chip, and may also include other discrete devices.

Take network equipment as a base station as an example. In the following, for ease of introduction, a base station in NR (such as gNB) is called an NR base station, and a base station in LTE (such as an eNB) is called an LTE base station.

3. Uplink communication. In the embodiment of the present application, uplink communication may also be referred to as uplink transmission, which refers to a process in which a terminal device sends a signal to a network device during communication between a terminal device and a network device. Wherein, the signal sent by the terminal device to the network device may be called an uplink signal or uplink information. Exemplarily, the uplink signal includes uplink control information (uplink control information, UCI) and/or uplink data. The uplink control information is used to carry relevant information fed back by the terminal device, such as channel state information (channel state information, CSI), acknowledgment (acknowledgment, ACK)/negative acknowledgment (negative acknowledgment, NACK), etc. Specifically, uplink control information may be carried on a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical uplink shared channel, PUSCH), and uplink data may be carried on a physical uplink shared channel.

4. Downlink communication. Downlink communication in this embodiment of the present application may also be referred to as downlink transmission, which refers to a process in which a terminal device receives a signal sent by a network device during communication between a terminal device and a network device. Wherein, the signal sent by the network device received by the terminal device may be referred to as a downlink signal or downlink information. Exemplarily, the downlink signal may include downlink control information (downlink control information, DCI) and/or downlink data (downlink data). The downlink control information is related information used for downlink data scheduling, for example, information such as resource allocation of data channels, modulation and coding schemes, and the like. Specifically, downlink control information may be carried on a physical downlink control channel (physical downlink control channel, PDCCH), and downlink data may be carried on a physical downlink shared channel (physical downlink shared channel, PDSCH).

5. Time unit. In this embodiment of the present application, a time unit refers to a period of time domain resources. Wherein, a time unit in this embodiment of the present application may include one or more basic time units. Specifically, the communication between the terminal device and the network device is based on a basic time unit or granularity in the time domain. In other words, in the time domain, the terminal device and the network device communicate with the basic time unit as the granularity or unit. For example, the basic time unit may be a radio frame (radio frame), a subframe (subframe), a slot (slot), a micro slot (micro slot), a mini-slot (mini-slot), or a symbol. For example, a basic time unit is a subframe, and one time unit may include one or more subframes. For another example, the basic time unit is a time slot, and one time unit may include one or more time slots.

It should be noted that in different communication systems, the granularity in the time domain of the communication between the terminal device and the network device may be different or the same. In other words, the basic time units in different communication systems may be different or the same. For example, in NR, communication between terminal devices and network devices is performed at the granularity of time slots, that is, in NR, the basic time unit is a time slot. For another example, in LTE, communication between a terminal device and a network device is performed at the granularity of a subframe, that is, in LTE, a basic time unit is a subframe.

In some embodiments, a radio frame may be 10 milliseconds (ms). One radio frame may include one or more subframes. The duration of one subframe is 1 ms, and one radio frame may include 10 subframes. One subframe may include one or more slots. Wherein, the duration of a time slot is related to the size of the subcarrier interval. That is, the durations of time slots corresponding to subcarrier intervals of different sizes are different. For example, if the subcarrier interval is 15KHz, the duration of a time slot is 1ms; if the subcarrier interval is 30KHz, the duration of a time slot is 0.5ms. In this embodiment of the present application, a time slot may include one or more symbols. For example, under a normal cyclic prefix (normal cyclic prefix), a time slot may include 14 symbols; under an extended cyclic prefix (extended cyclic prefix), a time slot may include 12 symbols. It should be understood that, in this embodiment of the present application, a symbol may also be referred to as a time-domain symbol. For example, the symbol can be an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol, or an orthogonal frequency division multiplexing (discrete fourier transform spread orthogonal frequency division multiplexing, DFT-s- OFDM) symbols, etc. In this embodiment of the present application, a mini-slot (or mini-slot) may be a unit smaller than a time slot, and a mini-slot may include one or more symbols. For example, a mini-slot (or mini-slot) may include 2 symbols, 4 symbols or 7 symbols and so on. One subframe may include one or more mini-slots. A slot may consist of one or more mini-slots (or mini-slots).

Take the subcarrier spacing as 15KHz as an example. As shown in FIG. 1 , it is a schematic structural diagram of a wireless frame according to an embodiment of the present application. As shown in the figure, the duration of the wireless frame is 10ms, including 10 time slots, namely time slot 0, time slot 1, time slot 2, time slot 3, time slot 4, time slot 5, time slot 6, time slot 7. Time slot 8 and time slot 9. The duration of each time slot is 1ms. Each slot includes 14 symbols. For example, mini-slot 1 may include symbol 0, symbol 1, symbol 2, and symbol 3. For another example, mini-slot 2 may include symbol 2 and symbol 3 . For another example, mini-slot 3 includes symbol 7 , symbol 8 , symbol 9 , symbol 10 , symbol 11 and symbol 12 .

It should be noted that, for ease of introduction, the basic time unit used for uplink communication is called an uplink basic time unit, and the basic time unit used for downlink communication is called a downlink basic time unit. For example, the basic time unit is a subframe, the uplink basic time unit may also be called an uplink subframe, and the downlink basic time unit may also be called a downlink subframe. For another example, the basic time unit is a time slot, the uplink basic time unit may also be called an uplink time slot, and the downlink basic time unit may also be called a downlink time slot.

6. Timing advance (TA). In the embodiment of the present application, TA is used for uplink communication, and is a physical quantity that needs to send uplink signals in advance, so that the uplink signals of the terminal equipment can reach the network equipment at the desired time, so as to ensure time synchronization on the network equipment side. For a terminal device, TA is essentially a negative offset between the start boundary of the uplink basic time unit and the start boundary of the downlink basic time unit. Wherein, the above-mentioned uplink basic time unit and downlink basic time unit are time domain resources configured by the network device for the terminal device. For example, as shown in FIG. 2 , the start boundary of the uplink basic time unit is time T1 , the start boundary of the downlink basic time unit is time T2 , and TA is the duration between T2 and T1 .

In the case that the terminal device supports dual connectivity, the terminal device can communicate with two network devices at the same time. Among them, one network device is the primary network device of the terminal device, and the other network device is the secondary network device of the terminal device. It can be understood that, in this embodiment of the present application, the primary network device may also be called a primary node, and the secondary network device may also be called a secondary node.

For example, when the primary network device is an LTE base station, the secondary network device is an NR base station, and is connected to a 4G core network (Evolved Packet Core, EPC), the terminal device can communicate with the LTE base station and the NR base station at the same time, thereby realizing 4G Dual connectivity of radio access network and 5G NR. This kind of dual connectivity can be called eNB and NR dual connectivity (eNB NR Dual Connectivity, EN-DC). As another example, when the primary network device is an NR base station, the secondary network device is an LTE base station, and is connected to a 5G core network (5G Core Network, 5GC), the terminal device can also communicate with the LTE base station and the NR base station at the same time, thereby Realize the dual connection of 5G NR and 4G wireless access network. This kind of dual connectivity can be called NR and eNB dual connectivity (NR eNB Dual Connectivity, NE-DC). As another example, when the primary network device is an LTE base station, the secondary network device is an NR base station, and the core network accessed by the LTE base station is a 5G core network, the terminal device can communicate with the LTE base station and the NR base station at the same time, thereby realizing Dual connection of 4G radio access network and 5G NR under 5G core network. Among them, the LTE base station connected to the 5G core network is also called NG-eNB. Therefore, this dual connection can be called NG-eNB and NR dual connectivity (NG-eNB NR Dual Connectivity, NGEN-DC). It should be noted that the terminal device can also communicate with two NR base stations at the same time to realize the dual connection of 5G NR and 5G NR. The foregoing is only an example of different dual connection manners, which is not limited in this embodiment of the present application.

Specifically, when the terminal device performs uplink communication with the primary network device and the secondary network device at the same time, the resource used by the terminal device for uplink communication with the primary network device is resource 1, and the resource used by the terminal device for uplink communication with the secondary network device is resource 1. for resource 2. If the uplink signal sent by the terminal device on resource 1 and the uplink signal sent by the terminal device on resource 2 can interact to generate a new signal. When the frequency of the new signal falls within the frequency range of the resource used by the downlink communication of the terminal device, it is easy to cause interference between the uplink communication and the downlink communication, that is, intermodulation interference between the uplink communication and the downlink communication. Especially for some frequency bands used for uplink communication in EN-DC and NE-DC, when the terminal equipment communicates uplink with the main network equipment and the auxiliary network equipment at the same time, serious intermodulation interference will be generated, which will affect the communication of the terminal equipment. performance.

Take EN-DC as an example. Considering that in terrestrial communication, the TA between the terminal device and the LTE base station, and the TA between the terminal device and the NR base station, there is not much difference between the two TAs. Therefore, in some embodiments, the TDM configuration can be introduced into the LTE base station, so that the LTE base station uses the TDM configuration, so that the terminal equipment does not simultaneously perform uplink communication with the LTE base station and the NR base station at the same time, reducing the possibility of intermodulation interference and improving communication performance. For example, as shown in FIG. 3, the frequency domain resource 1 configured by the LTE base station for the terminal device is located between frequencies f11-f12, and the frequency domain resource 2 configured by the NR base station for the terminal device is located between frequencies f21-f22. Take the subcarrier spacing of 15KHz as an example in NR. If the time domain resource configured by the LTE base station for the terminal device is subframe 1, subframe 3, and subframe 5 in the figure, and the time domain resource configured by the NR base station for the terminal device is time slot 3 in the figure, the terminal device can communicate with The LTE base station communicates with the NR base station. That is, the terminal device can perform uplink communication on frequency domain resource 1 and frequency domain resource 2 at the same time. However, in this case, if the uplink signal sent on frequency domain resource 1 interacts with the uplink signal sent on frequency domain resource 2 to generate a new signal, the frequency of the new signal falls within the range of the downlink communication of the terminal device. Within the range of the frequency band where the resources used will cause intermodulation interference. Therefore, in order to avoid intermodulation interference, the LTE base station may not configure time domain resources on subframe 3 when configuring time domain resources for terminal devices. For example, LTE base stations may configure time domain resources for terminal devices in subframe 1 and subframe 5, thereby preventing the terminal device from performing uplink communication on frequency domain resource 1 and frequency domain resource 2 at the same time. However, this method is only applicable to situations where the difference between TAs is small, such as ground communication.

For dual connectivity in non-terrestrial communication, the difference between the TA between the terminal device and the primary network device, and the TA between the terminal device and the secondary network device is large, especially in non-terrestrial communication, the terminal device and the network The TA between devices (such as primary network device and secondary network device) is changed. Specifically, in non-terrestrial communication, the terminal device needs to report the TA to the network device periodically, and the variation range of the TA can reach 10 ms within a reporting period. For example, take the connection between a terminal device and two NR base stations in non-terrestrial communication as an example. As shown in Figure 4, the difference between the TA reported by the terminal device and the TA of the two NR base stations is about 2 time slots, and the time domain resources configured by one of the NR base stations for the terminal device in the time domain are time slot 1, Another NR base station configures the time domain resource for the terminal equipment as time slot 3 in the time domain, as shown in the figure, time slot 1 and time slot 3 overlap in the time domain, so in this case, it is possible Cross-modulation interference will occur. Using the TDM configuration method, the NR base station as the primary network device will not overlap the time domain resources configured for the terminal with the time domain resources configured for the secondary network device in the time domain, such as configuring time slot 5 for the terminal device (as shown in the figure The shaded area of ), time slot 5 and time slot 1 do not overlap in the time domain, therefore, no intermodulation interference will be generated at this time. However, since TA changes within a reporting period, and the difference between TAs will change greatly after the change, if the master network device still uses the TA reported in this period as a reference to configure resources for the terminal device, it may cause traffic tune interference. Therefore the way of TDM configuration is no longer applicable. Therefore, how to reduce intermodulation interference in dual connectivity scenarios in non-terrestrial communications has important practical value for improving communication performance.

In view of this, an embodiment of the present application provides a communication method. When a terminal device is connected to two or more network devices, the secondary network device configures multiple uplink communication devices for the terminal device in the time domain. resources, so that the terminal device can select an appropriate resource from multiple resources for uplink communication configured by the secondary network device to communicate with the secondary network device in combination with the resources for uplink communication configured by the primary network device. Wherein, the appropriate resource in this embodiment of the present application refers to a resource that does not overlap or conflict with the resource configured by the master network device in the time domain. In this way, the intermodulation interference between uplink communication and downlink communication in the dual connection scenario in non-terrestrial communication is reduced, which helps to improve communication performance.

It should be noted that when the TA between the terminal device and the primary network device is TA1, and the TA between the terminal device and the secondary network device is TA2, the appropriate resources do not overlap with the resources configured by the primary network device in the time domain. Or non-conflict refers to that the appropriate resource does not overlap or conflict with the resource configured by the master network device after TA1 in the time domain ahead of TA2 in the time domain.

The embodiments of the present application may be applied in a dual connectivity scenario involving non-terrestrial communication. For example, as shown in FIG. 5A , it is a schematic diagram of an application scenario applicable to this embodiment of the present application. As shown in the figure, the terminal device is connected to the main network device through the satellite, and the terminal device is connected to the secondary network device through the satellite. For example, both the primary network device and the secondary network device may be NR base stations, or one of them may be an LTE base station and the other may be an NR base station. It should be noted that the satellite used by the terminal device to connect to the primary network device and the satellite used by the terminal device to connect to the secondary network device may be the same or different. In some embodiments, the main network device can be deployed on the ground, and the satellite and the main network device can be connected or communicated through a gateway (Gateway). Similarly, the auxiliary network equipment is deployed on the ground, and the connection or communication between the satellite and the auxiliary network equipment can also be realized through a gateway. In some other embodiments of the present application, the primary network device and/or the secondary network device may also be deployed on the satellite.

Wherein, the primary network device and the secondary network device can be connected to the core network, and the core network is connected to the data network. Take the main network equipment as NR base station and the core network as 5G core network as an example. The communication between the terminal device and the main network device is realized through the Uu port. Communication between the main network device and the core network is realized through the NG interface. For example, in the case that the secondary network device is an NR base station, the communication between the primary network device and the secondary network device is realized through the Xn interface.

For another example, as shown in FIG. 5B , it is a schematic diagram of another application scenario applicable to the embodiment of the present application. As shown in the figure, the terminal device is connected to the main network device and communicates through the Uu port. The terminal equipment and the auxiliary network equipment are connected through satellite, and the communication is also realized through the Uu port. The secondary network equipment may be deployed on a satellite or on the ground, which is not limited in this embodiment of the present application. Wherein, the primary network device and the secondary network device are respectively connected to the core network, and the core network is connected to the data network.

For another example, as shown in FIG. 5C , it is a schematic diagram of another application scenario applicable to the embodiment of the present application. The difference from the application scenario shown in FIG. 5B is that in FIG. 5C , the terminal device is connected to the secondary network device, and the communication is realized through the Uu port. The terminal equipment is connected with the main network equipment through satellite, and the communication is also realized through the Uu port.

It should be noted that, in some embodiments of the present application, the primary network device is connected to the core network, and the secondary network device may not be connected to the core network. In this case, the secondary network device communicates with the core network through the primary network device.

It should be understood that the non-terrestrial communications involved in FIG. 5A , 5B and 5C are satellite communications, and the embodiments of the present application may also be applied to scenarios involving other non-terrestrial communications such as underwater communications and underground communications, which are not limited thereto.

The communication method in this embodiment of the present application will be described in detail below by taking the secondary network device as the first network device and the primary network device as the second network device as an example. Wherein, at least one of the communication between the first network device and the terminal device and the communication between the second network device and the terminal device is non-terrestrial communication.

As shown in FIG. 6, it is a schematic flowchart of a communication method according to an embodiment of the present application, which specifically includes the following steps:

601. The first network device sends first resource indication information. Correspondingly, the terminal device receives the first resource indication information. Wherein, the first resource indication information is used to indicate at least two first resources. The following first resource indication information indicates N first resources, where N is a positive integer greater than or equal to 2 as an example.

In some embodiments, when the terminal device is connected to the first network device and the second network device, the first resource indication information is sent. Exemplarily, the first resource indication information is generated by the first network device. That is to say, the first network device generates first resource indication information, and then sends the first resource indication information. For example, the first network device may determine N first resources according to the TA reported by the terminal device and the service type of the terminal device, and then generate the first resource indication information. Of course, in this embodiment of the present application, the N first resources may also be determined in other ways. For example, scheduling of cell users, which is not limited in this embodiment of the present application.

In this embodiment of the present application, the first network device may carry the first resource indication information in downlink control information (Downlink Control Information, DCI) and send it to the terminal device. That is to say, the first network device sends DCI to the terminal device, and the DCI includes the first resource indication information. Wherein, the format of the DCI may be DCI0_0, DCI 0_1, DCI 1_0 or DCI 1_1, etc., and the format of the DCI is not limited in this embodiment of the present application. For example, the first resource indication information may be carried by adding a Time domain resource assignment for singleTx field in the DCI. It should be noted that, in this embodiment of the present application, the first network device may also carry the first resource indication information through other information (such as newly defined information) and send it to the terminal device.

Specifically, in this embodiment of the present application, the first resource may be understood as a time domain resource used for uplink communication, and may be a resource used for PUSCH transmission or a resource used for PUCCH transmission. Specifically, resources used for PUSCH transmission can also be referred to as resources used for uplink data transmission, referred to as PUSCH resources; resources used for PUCCH transmission can also be referred to as resources used for uplink signaling (such as UCI) transmission , referred to as PUCCH resource for short.

For example, a first resource may include one or more elementary time units. Take the first resource as a basic time unit as an example. The first resource indication information indicates N first resources, which may be understood as: the first resource indication information indicates N basic time units. For another example, the first resource may include one or more time units. Take the first resource as an example of a time unit. The first resource indicates N first resources, which may be understood as: the first resource indication information indicates N time units. It should be noted that, in the case that the DCI carries the first resource indication information, the DCI may also indicate frequency domain resources and the like.

602. The second network device sends second resource indication information. Correspondingly, the terminal device receives the second resource indication information. Wherein, the second resource indication information is used to indicate the second resource.

In this embodiment of the present application, the second resource may also be understood as a time domain resource. For example, the second resource may include one or more elementary time units. Alternatively, the second resource may include one or more time units. In some embodiments, the second network device may also carry the second resource indication information in the DCI and send it to the terminal device. That is, the second network device sends DCI to the terminal device, where the DCI includes second resource indication information.

603. The terminal device performs uplink communication with the second network device on the second resource, and performs uplink communication with the first network device on at least one first resource among the N first resources. That is to say, both the second resource and the first resource are resources used for uplink communication.

Specifically, the terminal device may simultaneously perform uplink communication on at least one first resource and a second resource. In some embodiments, after receiving the first resource indication information and the second resource indication information, the terminal device may determine one of the N first resources that does not overlap with the second resource according to the first TA and the second TA. resource, and then perform uplink communication with the first network device on the first resource. Wherein, the first TA is a TA between the terminal device and the first network device, and the second TA is a TA between the terminal device and the second network device. In specific implementation, if the terminal device communicates with the first network device on the ground, the first TA can be configured by the first network device; similarly, if the terminal device communicates with the second network device on the ground, then The second TA may be configured by a second network device. Alternatively, if non-terrestrial communication is used between the terminal device and the first network device, the first TA may be determined by the first round-trip delay between the terminal device and the satellite (for example, satellite 1) and the first initial TA, for example, The first TA=the first round-trip delay+the first initial TA. The satellite 1 may be a satellite that communicates with the terminal device, and the first round-trip time delay is determined by the terminal device according to its relative position with the satellite 1 . The first initial TA may be an initial TA configured by the first network device for the terminal device. Similarly, if there is non-terrestrial communication between the terminal device and the second network device, the second TA can be determined by the second round-trip delay between the terminal device and the satellite (for example, satellite 2) and the second initial TA, for example , the second TA=the second round-trip delay+the second initial TA. Wherein, the satellite 2 may be a satellite that communicates with the terminal device, and the second round-trip time delay is determined by the terminal device according to its relative position with the satellite 2 . The second initial TA may be an initial TA configured by the second network device for the terminal device.

It should be understood that, in this embodiment of the present application, the first resource does not overlap with the second resource, which can also be understood as: the first resource does not conflict with the second resource. Specifically, after the first resource advances the first TA in the time domain, it does not overlap or conflict with the second resource advances the second TA in the time domain.

For example, as shown in Figure 7, the first resource is obtained after the first TA in the time domain, the first resource' is obtained, the second resource is obtained after the second TA in the time domain, and the second resource' is obtained, the first resource' and the second Resources' do not overlap or conflict. However, the first resource and the second resource may partially overlap, completely overlap, or not overlap. FIG. 7 only shows a situation where the first resource and the second resource partially overlap.

In the case where both the first TA and the second TA are not 0, the terminal device performs uplink communication with the first network device on the first resource, which can be understood as: the terminal device communicates with the first network device based on or utilizes the first resource To perform uplink communication, that is to say, the terminal device actually performs uplink communication with the first network device on a resource that is ahead of the first resource in the time domain by the first TA (that is, the first resource'). Similarly, the terminal device performs uplink communication on the second resource, that is, the terminal device performs uplink communication with the second network device based on or using the second resource. That is, the terminal device actually performs uplink communication with the second network device on the second resource'.

The above is an example of a terminal device selecting a first resource from N first resources. In this embodiment of the application, the terminal device may also select at least two first resources from the N first resources, and Perform uplink communication with the first network device on at least two first resources. Wherein, the at least two first resources do not overlap or conflict with the second resources. Regarding performing uplink communication with a first network device on at least two first resources, and not overlapping or conflicting with at least two first resources and second resources, please refer to Performing Uplink with a First Network Device on One First Resource The related introduction of communication, non-overlapping or non-conflict between the first resource and the second resource will not be repeated here.

In the embodiment of this application, when the terminal device is connected to the first network device and the second network device, the first network device can configure multiple first resources for the terminal device, so that the terminal device can combine with the first network device. The TA between the network device and the second network device selects the first resource that does not overlap or conflict with the second resource for uplink communication, thereby helping to reduce the number of terminal devices performing uplink with the first network device and the second network device at the same time During communication, the probability of intermodulation interference occurs, which in turn helps to improve communication performance.

In some other embodiments of the present application, if the N first resources overlap with the second resource, the terminal device does not perform uplink communication with the first network device on any one of the N first resources. In this case, the terminal device may perform uplink communication with the second network device on the second resource, or may not perform uplink communication with the second network device on the second resource. Alternatively, if all the N first resources overlap with the second resource, the terminal device does not perform uplink communication with the second network device on the second resource. In this case, the terminal device performs uplink communication with the first network device on at least one first resource among the N first resources. For example, in the case that all N first resources overlap or conflict with the second resource, whether the terminal device gives up uplink communication with the first network device or gives up uplink communication with the second network device may be the combination of the terminal device information importance, information priority and/or information type, etc. For example, take information importance as an example. If the importance of the information reported by the terminal device to the first network device is high, the terminal device may give up uplink communication with the second network device. As another example, in the case that all N first resources overlap with the second resources, the terminal device may give priority to ensuring uplink communication with the primary network device (ie, the second network device), and directly give up communication with the secondary network device (ie, the second network device). Uplink communication between first network devices).

It should be noted that all of the N first resources overlap with the second resource, which can be understood as: each of the N first resources overlaps or conflicts with the second resource. That is, any first resource among the N first resources partially or completely overlaps with the second resource. Wherein, in the case that both the first TA and the second TA are not 0, the N first resources overlap with the second resource, which means that the N first resources overlap with the first TA in the time domain. The two resources overlap partially or completely after being advanced by the second TA in the time domain. Regarding the first TA and the second TA, reference may be made to the relevant introduction above, and details are not repeated here.

Further, in some embodiments, the first network device may perform blind detection on the N first resources, so as to reduce the possibility of missing uplink signals. It should be noted that the first network device performs blind detection on the N first resources no matter whether the terminal device performs uplink communication on the N first resources. Of course, in some other embodiments, the terminal device may also indicate to the first network device the first resource used for uplink communication, so that the first network device can receive the uplink signal on the first resource indicated by the terminal device, thereby facilitating to reduce the number of times of blind detection of the first network device.

In some embodiments of the present application, the first resource indication information may indicate N first resources in the following manner:

The first resource indication information includes resource indication information and offset indication information. Wherein, the resource indication information is used to indicate a first resource among the N first resources, and the offset indication information is used to indicate an offset between two first resources adjacent in the time domain among the N first resources. displacement. This helps to save signaling overhead.

For example, one of the N first resources indicated by the resource indication information may be any one of the N first resources. For example, one of the N first resources indicated by the resource indication information may be the first resource at the start position in the time domain, or the first resource at the end position, etc., which is not limited. . Taking the value of N as 3 as an example, as shown in Figure 8, the N first resources are respectively the first resource 1, the first resource 2 and the first resource 3, wherein the first resource 1 is the N first resources The first resource at the start position among the N first resources, and the first resource 3 is the first resource at the end position among the N first resources. It should be noted that the time interval between the first resource 1 and the second resource 2 and the time interval between the first resource 2 and the first resource 3 may be the same or different, which is not limited. In addition, the resource length of the first resource 1 and the resource length of the first resource 2 may be the same or different, and this is not limited.

In the case that one of the N first resources indicated by the resource indication information is the first resource at the starting position among the N first resources, the resource indication information is used to indicate that among the N first resources at the time The first resource at the starting position on the domain, that is, the resource indication information is used to indicate the first first resource among the N first resources.

Specifically, the resource indication information may indicate one of the N first resources in the following manner:

Way 1: The resource indication information may indicate a first resource by indicating the starting time domain position of the first resource and the resource length of the first resource.

Way 2: The resource indication information indicates a first resource by indicating the row number or index of the first resource in the resource allocation list. Wherein, the resource allocation list includes the line number or index of the first resource, the starting time domain position of the first resource, and the resource length of the first resource. Order) indicated to the terminal device may also be a default time-domain resource allocation list.

The above is only an example of how the resource indication information can indicate one of the N first resources in the following manner, and does not constitute a limitation to the embodiment of the present application. The embodiment of the present application can also indicate a resource in other ways first resource.

In addition, when the value of N is 2, the offset indication information may be used to indicate an offset value (offset), where the offset value is the offset between the two first resources. Taking offset0 as an example between two first resources, as shown in FIG. 9A, the two first resources are first resource 1 and first resource 2, and first resource 1 and first resource 2 respectively. The offset between is the offset between the initial time domain position of the first resource 1 and the initial time domain position of the first resource 2 . It should be understood that in this embodiment of the present application, the offset between the first resource 1 and the first resource 2 may also be between the end time domain position of the first resource 1 and the start time domain position of the first resource 2 The offset of , as shown in Figure 9B, can also be the offset between the end time domain position of the first resource 1 and the end time domain position of the first resource 2, or the start time of the first resource 1 The present application does not limit the offset between the domain position and the end time domain position of the first resource 2 .

Alternatively, the offset indication information is used to indicate an offset value, and may also be applied to an offset between two first resources adjacent to each other in the time domain when the value of N is greater than 2. Scenarios with the same volume. Taking the value of N as 4, the offset between two first resources is the offset between the starting time domain positions of the two first resources as an example. As shown in FIG. 10 , the N first resources are respectively the first resource 1 , the first resource 2 , the first resource 3 and the first resource 4 . It should be noted that the resource length of the first resource 1, the resource length of the first resource 2, the resource length of the first resource 3 and the resource length of the first resource 4 may be partly the same, partly different, or all different, or All are the same, without limitation.

When the value of N is greater than 2, in some embodiments, the value of N may be indicated by the first network device to the terminal device, or indicated by the main network device (ie, the second network device) to the terminal device. For example, take the first network device indicating the value of N to the terminal device as an example. Exemplarily, the first network device may indicate N to the terminal device through high layer signaling (such as RRC signaling). Alternatively, the first network device may also indicate N to the terminal device through the DCI. N may be carried in the same DCI as the offset indication information and the resource indication information, or may be carried in a different DCI, which is not limited. The embodiment of the present application does not limit the message carrying N. As another example, the value of N may be predefined. For example, the value of N is predefined by the protocol. For example, the value of N is directly predefined through the protocol. For example, the value of N is predefined by the protocol to be 3. For another example, the value of N is predefined by predefining N first resources, thereby reducing signaling overhead. For example, the predefined N first resources are located in one radio frame. For 5G NR, the duration of the basic time unit is related to the subcarrier spacing. Therefore, for different subcarrier spacings, the value of N is different.

In other embodiments of the present application, the offset indication information may be used to indicate N-1 offset values, and the i-th offset value in the N first resources is The offset between the i-th first resource and the i+1-th first resource, 1≤i≤N-1, and i is a positive integer. This technical solution may be applied to a scenario where offsets between two adjacent first resources in the time domain among the N first resources are different. It should be noted that, among the N first resources, offsets between two adjacent first resources in the time domain may all be different, or may be partially different. For example, taking the value of N as 4 as an example, the offset indication information is used to indicate offset0, offset1 and offset2 respectively. Wherein, offset0 is the first offset value indicated by the offset indication information, offset1 is the second offset value indicated by the offset indication information, and offset2 is the third offset value indicated by the offset indication information. The N first resources are respectively the first resource 1, the first resource 2, the first resource 3 and the first resource 4, as shown in FIG. 11 . The first resource 1 is the first resource among the N first resources, the first resource 2 is the second first resource among the N first resources, and the first resource 3 is the first resource among the N first resources. The third first resource, the first resource 4 is the fourth first resource among the N first resources. Wherein, it is taken as an example that the offset between two adjacent first resources is the offset between the starting time domain positions of the two first resources. offset0 is the offset between the starting position of the first resource 1 and the starting position of the first resource 2, and offset1 is the offset between the starting position of the first resource 2 and the starting position of the first resource 3 amount, offset2 is the offset between the starting position of the first resource 3 and the starting position of the first resource 4 .

In addition, in the embodiment of the present application, the offset indication information may also be used to indicate offsets between the N-1 first resources and the k-th first resource among the N first resources respectively. The N-1 first resources are first resources other than the k-th first resource among the N first resources. The kth first resource may be the first resource located at the start position or the end position, or may be the first resource indicated by the resource indication information, etc., which is not limited.

The foregoing is only an example of a specific implementation manner in which the first resource indication information indicates N first resources, and this embodiment of the present application may also indicate N first resources in other ways, which is not limited thereto.

The above is an example of configuring multiple resources on the secondary network device. In the embodiment of the present application, multiple resources can also be configured by the primary network device, and one resource can be configured by the secondary network device. For specific implementation, see Figure 6. An introduction to communication methods.

In addition, it can be understood that in the embodiment of the present application, for the second network device, that is, the master network device, the second network device can also configure multiple second resources, and configure multiple second resources on the second network device. In the case of resources, the terminal device may first select one or more second resources from multiple second resources, and then select a first resource from multiple first resources configured by the first network device to perform uplink communication.

It should be noted that this embodiment of the present application may also be extended to a scenario where a terminal device is connected to three or more network devices.

Each of the above embodiments can be used alone or in combination with each other to achieve different technical effects.

In the above-mentioned embodiments provided in the present application, the communication method provided in the embodiments of the present application is introduced from the perspective of the network device and the terminal device as execution subjects. In order to implement the above communication method provided by the embodiment of the present application. In order to realize the various functions in the communication method provided by the above-mentioned embodiments of the present application, the terminal device and the network device may include a hardware structure and/or a software module, and realize the above-mentioned various functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Function. Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

FIG. 12 is a schematic structural diagram of a communication device 1200 provided in an embodiment of the present application, which may include: a receiving module 1210 and a communication module 1220;

The receiving module 1210 is configured for the terminal device to receive first resource indication information from the first network device, where the first resource indication information is used to indicate N first resources, where N is a positive integer greater than or equal to 2; Second resource indication information of the network device, where the second resource indication information is used to indicate the second resource;

The communication module 1220 is used for the terminal device to perform uplink communication with the first network device on at least one of the N first resources, and to perform uplink communication with the second network device on the second resource, and the second resource communicates with at least one of the N first resources. A first resource does not overlap in time domain.

In one possible implementation manner, the communication module 1220 is further configured to prevent the terminal device from performing uplink communication with the first network device on the N first resources if all of the N first resources overlap with the second resource in the time domain , or do not perform uplink communication with the second network device on the second resource.

In one possible implementation manner, the first resource indication information includes resource indication information and offset indication information, the resource indication information is used to indicate one of the N first resources, and the offset indication information is used to Indicates an offset between two adjacent first resources in the time domain among the N first resources.

In one possible implementation manner, the resource indication information is used to indicate the first resource at the starting position in the time domain among the N first resources.

In one possible implementation manner, the offset indication information is used to indicate a first value, and the first value is an offset between two first resources that are adjacent in the time domain among the N first resources.

Wherein, N is a positive integer greater than 2.

In one possible implementation manner, the offset indication information is used to indicate N-1 offset values, and the i-th offset value in the N-1 offset values is the i-th in the N first resources The offset between the first resource and the i+1th first resource, 1≤i≤N-1, and i is a positive integer.

In a possible implementation manner, the communications apparatus 1200 may be a chip or a terminal device.

FIG. 13 is a schematic structural diagram of a communication device 1300 provided in an embodiment of the present application, which may include: a generating module 1310 and a sending module 1320;

A generating module 1310, configured for the first network device to generate first resource indication information, where the first resource indication information is used to indicate N first resources, where N is a positive integer greater than or equal to 2;

The sending module 1320 is used for the first network device to send first resource indication information to the terminal device, so that the terminal device can communicate with the first network device while performing uplink communication on at least one first resource among the N first resources. The second network device performs uplink communication.

In one possible implementation manner, the sending module 1320 may also be configured to enable the terminal device to perform uplink communication with the second network device on the second resource, and the first resource and the second resource do not overlap.

In one possible implementation manner, the communication device 1300 may further include:

The communication module 1330 is configured to, if the N first resources all overlap with the second resources in the time domain, the first network device does not perform uplink communication with the terminal device on the N first resources, or the first network device does not perform uplink communication with the terminal device on the N first resources, or While performing uplink communication with the terminal device on at least one first resource, the terminal device does not perform uplink communication with the second network device on the second resource.

The detection module 1340 is configured for the first network device to perform blind detection on the N first resources.

In one possible implementation manner, the first resource indication information includes resource indication information and offset indication information, the resource indication information is used to indicate one of the N first resources, and the offset indication information is used to Indicates the offset between two adjacent first resources in the time domain among the N first resources.

In one possible implementation manner, N is predefined, or, the first network device indicates N to the terminal device;

Wherein, N is a positive integer greater than 2.

In a possible implementation manner, the communications apparatus 1300 may be a chip or a network device.

FIG. 14 is a schematic structural diagram of a communication device 1400 provided in an embodiment of the present application. The communication device 1400 may include: at least one processor; and at least one memory communicatively connected to the processor. The foregoing communication apparatus 1400 may be a network device or a terminal device. The memory stores program instructions that can be executed by the processor. If the communication device 1400 is a network device, the processor can call the program instructions to execute the actions performed by the network device in the communication method provided by the embodiment of the present application. If the communication device 1400 1400 is a terminal device, and the processor invokes the above-mentioned program instructions to perform actions performed by the terminal device in the communication method provided by the embodiment of the present application.

As shown in FIG. 14, communication apparatus 1400 takes the form of a general-purpose computing device. Components of the communication device 1400 may include, but are not limited to: one or more processors 1410 , a memory 1420 , a communication bus 1440 connecting different system components (including the memory 1420 and the processor 1410 ), and a communication interface 1430 .

Communication bus 1440 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus structures. For example, these architectures include but are not limited to Industry Standard Architecture (Industry Standard Architecture; hereinafter referred to as: ISA) bus, Micro Channel Architecture (Micro Channel Architecture; hereinafter referred to as: MAC) bus, enhanced ISA bus, video electronics Standards Association (Video Electronics Standards Association; hereinafter referred to as: VESA) local bus and Peripheral Component Interconnection (hereinafter referred to as: PCI) bus.

Communications device 1400 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by communication device 1400 and include both volatile and nonvolatile media, removable and non-removable media.

The memory 1420 may include a computer system readable medium in the form of a volatile memory, such as a random access memory (Random Access Memory; hereinafter referred to as: RAM) and/or a cache memory. The communication device 1400 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. Although not shown in FIG. 7, a disk drive for reading and writing to a removable nonvolatile disk (such as a "floppy disk") may be provided, as well as a disk drive for removable nonvolatile disks (such as a CD-ROM (Compact Disc Read Only Memory; hereinafter referred to as: CD-ROM), Digital Video Disc Read Only Memory (hereinafter referred to as: DVD-ROM) or other optical media). In these cases, each drive may be connected to communication bus 1440 through one or more data media interfaces. The memory 1420 may include at least one program product having a set (for example, at least one) of program modules configured to execute the functions of the various embodiments of the present application.

A program/utility having a set (at least one) of program modules may be stored in memory 1420, such program modules including - but not limited to - an operating system, one or more application programs, other program modules, and program data , each or some combination of these examples may include implementations of network environments. The program modules generally perform the functions and/or methods in the embodiments described herein.

The communication device 1400 may also communicate with one or more external devices (such as keyboards, pointing devices, displays, etc.), and may also communicate with one or more devices that enable the user to interact with the communication device 1400, and/or communicate with the device that enables the user to interact with the communication device 1400. Communications apparatus 1400 is capable of communicating with any device (eg, network card, modem, etc.) that communicates with one or more other computing devices. Such communication may occur through communication interface 1430 . Moreover, the communication device 1400 can also communicate with one or more networks (such as a local area network (Local Area Network; hereinafter referred to as: LAN), a wide area network (Wide Area Network; hereinafter referred to as: WAN) and (or a public network, such as the Internet), the above-mentioned network adapter can communicate with other modules of the electronic device through the communication bus 1440 . It should be appreciated that although not shown in FIG. 14 , other hardware and/or software modules may be used in conjunction with communication device 1400, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, disk arrays (Redundant Arrays of Independent Drives; hereinafter referred to as: RAID) system, tape drive and data backup storage system, etc.

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned functions can be allocated according to needs It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the above-described system, device, and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not repeated here.

Each functional unit in each embodiment of the embodiment of the present application may be integrated into one processing unit, or each unit may physically exist separately, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function 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 embodiment of the present application is essentially or the part that contributes to the prior art or all or 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 The medium includes several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: flash memory, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk, and other various media capable of storing program codes.

The above is only a specific implementation of the application, but the protection scope of the application is not limited thereto, and any changes or replacements within the technical scope disclosed in the application should be covered within the protection scope of the application . Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A communication method, characterized in that the method comprises:

The terminal device receives first resource indication information from the first network device, where the first resource indication information is used to indicate N first resources, where N is a positive integer greater than or equal to 2;

The terminal device receives second resource indication information from a second network device, where the second resource indication information is used to indicate a second resource;

The terminal device performs uplink communication with the first network device on at least one first resource among the N first resources, and performs uplink communication with the second network device on the second resource, so The second resource does not overlap with the at least one first resource in time domain.
The method according to claim 1, further comprising:

If the N first resources overlap with the second resource in the time domain, the terminal device does not perform uplink communication with the first network device on the N first resources, or does not communicate with the first network device on the N first resources. Perform uplink communication with the second network device on the second resource.
The method according to claim 1 or 2, wherein the first resource indication information is used to indicate N first resources, including:

The first resource indication information includes resource indication information and offset indication information, the resource indication information is used to indicate a first resource among the N first resources, and the offset indication information is used to indicate An offset between two adjacent first resources in the time domain among the N first resources.
The method according to claim 3, wherein the resource indication information is used to indicate one of the N first resources, including:

The resource indication information is used to indicate the first resource at the starting position in the time domain among the N first resources.
The method according to claim 3 or 4, wherein the offset indication information is used to indicate an offset between two adjacent first resources in the time domain among the N first resources amount, including:

The offset indication information is used to indicate a first value, where the first value is an offset between two adjacent first resources in the time domain among the N first resources.
The method according to claim 5, wherein the N is predefined, or the N is indicated to the terminal device by the first network device;

Wherein, the N is a positive integer greater than 2.
The method according to claim 3 or 4, wherein the offset indication information is used to indicate an offset between two adjacent first resources in the time domain among the N first resources amount, including:

The offset indication information is used to indicate N-1 offset values, and the i-th offset value among the N-1 offset values is the i-th first resource among the N first resources The offset between the i+1th first resource, 1≤i≤N-1, and i is a positive integer.
The method according to any one of claims 1-7, wherein the first network device is a secondary network device of the terminal device, and the second network device is a primary network device of the terminal device.
A communication method, characterized in that the method comprises:

The first network device generates first resource indication information, where the first resource indication information is used to indicate N first resources, where N is a positive integer greater than or equal to 2;

The first network device sends the first resource indication information to the terminal device, so that the terminal device performs uplink communication with the first network device on at least one first resource among the N first resources At the same time, uplink communication can be performed with the second network device.
The method according to claim 9, wherein the performing uplink communication with the second network device comprises:

Perform uplink communication with the second network device on a second resource, and the first resource does not overlap with the second resource.
The method according to claim 10, characterized in that the method further comprises:

If the N first resources overlap with the second resource in the time domain, the first network device does not perform uplink communication with the terminal device on the N first resources, or While performing uplink communication with the terminal device on at least one of the first resources, the terminal device does not perform uplink communication with the second network device on the second resource.
The method according to any one of claims 9-11, wherein the method further comprises:

The first network device performs blind detection on the N first resources.
The method according to any one of claims 9-12, wherein the first resource indication information is used to indicate N first resources, including:

The first resource indication information includes resource indication information and offset indication information, the resource indication information is used to indicate a first resource among the N first resources, and the offset indication information is used to indicate An offset between two adjacent first resources in the time domain among the N first resources.
The method according to claim 13, wherein the resource indication information is used to indicate one of the N first resources, comprising:

The resource indication information is used to indicate the first resource at the starting position in the time domain among the N first resources.
The method according to claim 13 or 14, wherein the offset indication information is used to indicate an offset between two adjacent first resources in the time domain among the N first resources amount, including:

The offset indication information is used to indicate a first value, where the first value is an offset between two adjacent first resources in the time domain among the N first resources.
The method according to claim 15, wherein the N is predefined, or the first network device indicates the N to the terminal device;

Wherein, the N is a positive integer greater than 2.
The method according to claim 13 or 14, wherein the offset indication information is used to indicate an offset between two adjacent first resources in the time domain among the N first resources amount, including:

The offset indication information is used to indicate N-1 offset values, and the i-th offset value among the N-1 offset values is the i-th first resource among the N first resources The offset between the i+1th first resource, 1≤i≤N-1, and i is a positive integer.
The method according to any one of claims 9-17, wherein the first network device is a secondary network device of the terminal device, and the second network device is a primary network device of the terminal device.
A communication device, characterized in that it includes: a processor and a memory, the memory is used to store a computer program; the processor is used to run the computer program, and execute the communication method according to any one of claims 1-8 .
The communication device according to claim 19, wherein the communication device is a chip, or the communication device is a terminal device.
A communication device, characterized in that it includes: a processor and a memory, the memory is used to store a computer program; the processor is used to run the computer program, and execute the communication method according to any one of claims 9-18 .
The communication device according to claim 21, wherein the communication device is a chip, or the communication device is a network device.
A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is run on a computer, the method according to any one of claims 1-8 is implemented, or The method as described in any one of claims 9-18.