CN110876201A

CN110876201A - Uplink transmission method and device

Info

Publication number: CN110876201A
Application number: CN201811027825.7A
Authority: CN
Inventors: 王建峰; 楚志远; 曹念伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-09-04
Filing date: 2018-09-04
Publication date: 2020-03-10
Anticipated expiration: 2038-09-04
Also published as: CN110876201B; WO2020048500A1

Abstract

The embodiment of the application relates to the technical field of communication, in particular to an uplink transmission method and device. To reduce the loss of uplink resources. The scheme is used in a terminal, the terminal is in double connection with a first base station and a second base station, the base station terminal is communicated with the first base station of the base station through Time Division Duplex (TDD), and the base station terminal is communicated with the second base station of the base station through Frequency Division Duplex (FDD), and the scheme comprises the following steps: a base station terminal acquires time division multiplexing configuration information, wherein the base station time division multiplexing configuration information is used for indicating a TDD time domain resource of the communication between the base station terminal and a first base station of the base station; a base station terminal acquires TDD time domain resource configuration information of a first base station of the base station, wherein the TDD time domain resource configuration information of the base station is used for indicating TDD non-uplink time domain resources; and the base station terminal determines FDD uplink time domain resources, and performs uplink transmission with a second base station of the base station on the FDD uplink time domain resources of the base station.

Description

Uplink transmission method and device

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to an uplink transmission method and device.

Background

As shown in fig. 1, fig. 1 illustrates a Dual Connectivity (DC) scenario in which a terminal 101 is in wireless communication with two base stations (e.g., a first base station 102 and a second base station 103) simultaneously. Terminal 101 may be transmitting uplink with both base stations simultaneously. In a DC scenario, the first base station 102 and the second base station 103 may be base stations in different wireless communication systems, and the terminal 101 may support different wireless communication systems. For example, in EN-DC, The first base station 102 may be an Evolved Node B (eNB) in The 4Generation mobile communication technology (4G) system, The second base station 103 may be a Next Generation Node B (gNB) in a New Radio (NR) system, and The terminal 101 may support both LTE and NR wireless communication systems.

In the DC scenario, the uplink transmit power of the terminal is limited, for example, the maximum uplink transmit power of the terminal in the EN-DC scenario under sub6G is 23 dBm. A terminal may perform power control through Time Division Multiplexing (TDM), however, in the TDM power control mode, how to improve the utilization rate of uplink Time domain resources becomes an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides an uplink transmission method and device, which are used for reducing the loss of uplink resources.

In a first aspect, an embodiment of the present application provides an uplink transmission method, including: the terminal is in double connection with a first base station and a second base station, the terminal communicates with the first base station through Time Division Duplex (TDD), and the terminal communicates with the second base station through Frequency Division Duplex (FDD), and the method comprises the following steps: a terminal acquires time division multiplexing configuration information, wherein the time division multiplexing configuration information is used for indicating TDD time domain resources; the terminal acquires TDD time domain resource configuration information communicated with the first base station, wherein the TDD time domain resource configuration information is used for indicating TDD non-uplink time domain resources, and the TDD non-uplink time domain resources are time domain resources in the TDD time domain resources; the terminal determines FDD uplink time domain resources, wherein the FDD uplink time domain resources comprise part or all time domain resources in TDD non-uplink time domain resources; and the terminal performs uplink transmission with the second base station on the FDD uplink time domain resource.

The embodiment of the application provides an uplink transmission method, and a terminal can determine a Time Division Duplex (TDD) time domain resource capable of performing uplink transmission with a first base station by acquiring time division multiplexing configuration information. In practice, when the terminal communicates with the first base station, not all TDD time domain resources in the TDD time domain resources are used, and there may be a situation where a part of the TDD time domain resources are in an idle state. Therefore, the terminal can determine the TDD time domain resource in an idle state, that is, the TDD non-uplink time domain resource, in the TDD time domain resource by acquiring the TDD time domain resource configuration information communicated with the first base station. In order to improve the utilization rate of the uplink time domain resources and reduce the loss of the time domain resources, the terminal can use the TDD non-uplink time domain resources when communicating with the second base station. The uplink transmission performance is greatly improved.

In a possible implementation manner, the TDD time domain resource configuration information is further used to indicate a TDD uplink time domain resource, where the TDD uplink time domain resource is an uplink time domain resource in the TDD time domain resources; and the terminal carries out uplink transmission with the first base station on the TDD uplink time domain resource. By indicating the TDD uplink time domain resource, it is convenient for the terminal to determine on which TDD time domain resource the uplink transmission can be sent when communicating with the first base station.

In one possible implementation manner, the time division multiplexing configuration information is used to indicate a total time domain resource and an FDD time domain resource, where the total time domain resource includes the TDD time domain resource and the FDD time domain resource, and the TDD time domain resource and the FDD time domain resource are not overlapped in a time domain; the FDD uplink time domain resources further comprise the FDD time domain resources. Therefore, uplink transmission can be performed with the second base station by using the TDD non-uplink time domain resource, and uplink transmission can also be performed with the second base station by using the FDD time domain resource allocated to the terminal by the network side. Further avoiding the loss of uplink time domain resources.

A possible implementation manner that a terminal performs uplink transmission with the second base station on the FDD uplink time domain resource includes: and the terminal performs uplink data transmission with the second base station on the FDD uplink time domain resource.

A possible implementation manner that a terminal performs uplink transmission with the second base station on the FDD uplink time domain resource includes: and the terminal performs uplink data transmission with the second base station on part or all of the time domain resources in the TDD non-uplink time domain resources, and performs hybrid automatic repeat request (HARQ) feedback on the FDD time domain resources.

In a possible implementation manner, the determining, by the terminal, the FDD uplink time domain resource includes: and the terminal determines the time domain resources except the TDD uplink time domain resources in the total time domain resources as the FDD uplink time domain resources.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: and the terminal sends indication information to the second base station on the FDD time domain resource, wherein the indication information is used for indicating whether the data sent by the second base station is correctly analyzed.

In a possible implementation manner, the TDD non-uplink time domain resource is one or both of a downlink time domain resource in the TDD time domain resource and a flexible time domain resource in the TDD time domain resource.

In a second aspect, an embodiment of the present application provides a communication method, including: the second base station sends time division multiplexing configuration information to the terminal, wherein the time division multiplexing configuration information is used for indicating TDD time domain resources; the second base station sends TDD time domain resource configuration information communicated with the first base station to the terminal, wherein the TDD time domain resource configuration information is used for indicating TDD non-uplink time domain resources, and the TDD non-uplink time domain resources are time domain resources in the TDD time domain resources; and the second base station receives the uplink transmission of the terminal on the FDD uplink time domain resource, wherein the FDD uplink time domain resource comprises part or all of the TDD non-uplink time domain resource.

In one possible implementation manner, the time division multiplexing configuration information is used to indicate a total time domain resource and an FDD time domain resource, the total time domain resource includes a TDD time domain resource and an FDD time domain resource, and the TDD time domain resource and the FDD time domain resource are not overlapped in a time domain; the FDD uplink time domain resource further includes an FDD time domain resource, and the second base station receives uplink transmission of the terminal on the FDD uplink time domain resource, further including: and the second base station receives the uplink transmission of the terminal on the FDD time domain resource.

A possible implementation manner that the second base station receives uplink transmission of the terminal on the FDD uplink time domain resource includes: and the second base station receives the uplink data sent by the terminal on the FDD uplink time domain resource.

A possible implementation manner that the second base station receives uplink transmission of the terminal on the FDD uplink time domain resource includes: and the second base station receives uplink data sent by the terminal on part or all of the time domain resources in the TDD non-uplink time domain resources and hybrid automatic repeat request (HARQ) feedback sent on the FDD time domain resources.

In a third aspect, an embodiment of the present application provides an uplink transmission apparatus, where the uplink transmission apparatus may implement the method described in the first aspect or any one of the possible implementation manners of the first aspect, and therefore may also implement beneficial effects in the first aspect or any one of the possible implementation manners of the first aspect. The uplink transmission device may be a terminal, or may also be a device that can support the terminal to implement the method in the first aspect or any one of the possible implementation manners of the first aspect, for example, a chip applied in the terminal. The uplink transmission device can implement the method through software, hardware or corresponding software executed by hardware.

In a possible design, the uplink transmission device may be a terminal or a chip applied in the terminal, where the terminal is in dual connection with a first base station and a second base station, the terminal communicates with the first base station through Time Division Duplex (TDD), and the terminal communicates with the second base station through Frequency Division Duplex (FDD), and the uplink transmission device includes:

a communication unit, configured to acquire time division multiplexing configuration information, where the time division multiplexing configuration information is used to indicate a TDD time domain resource. The communication unit is configured to acquire TDD time domain resource configuration information communicated with the first base station, where the TDD time domain resource configuration information is used to indicate a TDD non-uplink time domain resource, and the TDD non-uplink time domain resource is a time domain resource in the TDD time domain resource. The processing unit is used for determining FDD uplink time domain resources, wherein the FDD uplink time domain resources comprise part or all of time domain resources in TDD non-uplink time domain resources; and the communication unit is used for carrying out uplink transmission with the second base station on the FDD uplink time domain resource.

In a possible implementation manner, the TDD time domain resource configuration information is further used to indicate a TDD uplink time domain resource, where the TDD uplink time domain resource is an uplink time domain resource in the TDD time domain resources; and the communication unit is further used for performing uplink transmission with the first base station on the TDD uplink time domain resource.

In a possible implementation manner, the time division multiplexing configuration information is used to indicate a total time domain resource and an FDD time domain resource, where the total time domain resource includes the TDD time domain resource and the FDD time domain resource, and the TDD time domain resource and the FDD time domain resource are not overlapped in a time domain; the FDD uplink time domain resources also include FDD time domain resources. And the communication unit is also used for carrying out uplink transmission with the second base station on the FDD time domain resources.

In a possible implementation manner, the communication unit is specifically configured to perform uplink data transmission with the second base station on the FDD uplink time domain resource.

In a possible implementation manner, the communication unit is specifically configured to perform uplink data transmission with the second base station on a part or all of the time domain resources in the TDD non-uplink time domain resources, and perform HARQ feedback on an FDD time domain resource.

In a possible implementation manner, the processing unit is specifically configured to determine, as the FDD uplink time domain resource, a time domain resource other than the TDD uplink time domain resource in the total time domain resource.

In another possible design, an embodiment of the present application further provides an uplink transmission apparatus, where the uplink transmission apparatus may be a terminal or a chip applied in the terminal, and the uplink transmission apparatus includes: a processor and a transceiver, wherein the transceiver is configured to support the uplink transmission apparatus to perform the steps of receiving and sending messages/data on the uplink transmission apparatus side described in any one of the possible implementation manners of the first aspect to the first aspect. The processor is configured to support the uplink transmission apparatus to perform the steps of message/data processing on the uplink transmission apparatus side described in any one of the possible implementation manners of the first aspect to the first aspect. For specific corresponding steps, reference may be made to descriptions in any one of possible implementation manners of the first aspect to the first aspect, which are not described herein again.

The uplink transmission device may be a terminal or a chip applied to the terminal, the terminal is in dual connection with a first base station and a second base station, the terminal communicates with the first base station through Time Division Duplex (TDD), and communicates with the second base station through Frequency Division Duplex (FDD), and the uplink transmission device includes: a transceiver and a processor.

The transceiver is configured to acquire time division multiplexing configuration information, where the time division multiplexing configuration information is used to indicate a TDD time domain resource. The transceiver is configured to acquire TDD time domain resource configuration information communicated with the first base station, where the TDD time domain resource configuration information is used to indicate a TDD non-uplink time domain resource, and the TDD non-uplink time domain resource is a time domain resource in the TDD time domain resource. The processor is used for determining FDD uplink time domain resources according to the time division multiplexing configuration information and the TDD time domain resource configuration information acquired by the transceiver, wherein the FDD uplink time domain resources comprise part or all of the TDD non-uplink time domain resources; and the transceiver is used for carrying out uplink transmission with the second base station on the FDD uplink time domain resource.

In a possible implementation manner, the TDD time domain resource configuration information is further used to indicate a TDD uplink time domain resource, where the TDD uplink time domain resource is an uplink time domain resource in the TDD time domain resources; the transceiver is further configured to perform uplink transmission with the first base station on the TDD uplink time domain resource.

In one possible implementation manner, the time division multiplexing configuration information is used to indicate a total time domain resource and an FDD time domain resource, where the total time domain resource includes the TDD time domain resource and the FDD time domain resource, and the TDD time domain resource and the FDD time domain resource are not overlapped in a time domain; the FDD uplink time domain resources also include FDD time domain resources. And the transceiver is also used for carrying out uplink transmission with the second base station on the FDD time domain resources.

A possible implementation manner of the present invention is that the transceiver is specifically configured to perform uplink data transmission with the second base station on FDD uplink time domain resources.

A possible implementation manner, the transceiver is specifically configured to perform uplink data transmission with the second base station on a part or all of time domain resources in the TDD non-uplink time domain resources, and perform HARQ feedback on an FDD time domain resource.

In a possible implementation manner, the processor is specifically configured to determine, as the FDD uplink time domain resource, a time domain resource other than the TDD uplink time domain resource in the total time domain resource.

Optionally, the transceiver and the processor of the uplink transmission device are coupled to each other.

Optionally, the uplink transmission device may further include a memory for storing codes and data, and the processor, the transceiver and the memory are coupled to each other.

In a fourth aspect, embodiments of the present application provide a communication apparatus, which may implement the method described in the second aspect or any one of the possible implementation manners of the second aspect, so that the beneficial effects in any one of the possible implementation manners of the second aspect or the second aspect may also be achieved. The communication device may be a second base station, or may be a device that can support the second base station to implement the method in the second aspect or any one of the possible implementation manners of the second aspect, for example, a chip applied to the second base station. The communication device may implement the above method by software, hardware, or by executing corresponding software by hardware.

A possible design, the communication device comprising: a sending unit, configured to send time division multiplexing configuration information to a terminal, where the time division multiplexing configuration information is used to indicate a TDD time domain resource; a sending unit, configured to send TDD time domain resource configuration information to a terminal, where the TDD time domain resource configuration information is used to indicate a TDD non-uplink time domain resource, and the TDD non-uplink time domain resource is a time domain resource in the TDD time domain resource; and the receiving unit is used for receiving the uplink transmission of the terminal on the FDD uplink time domain resource, wherein the FDD uplink time domain resource comprises part or all of the time domain resources in the TDD non-uplink time domain resource.

In one possible implementation manner, the time division multiplexing configuration information is used to indicate a total time domain resource and an FDD time domain resource, where the total time domain resource includes the TDD time domain resource and the FDD time domain resource, and the TDD time domain resource and the FDD time domain resource are not overlapped in a time domain; the FDD uplink time domain resources further include FDD time domain resources, and the receiving unit is further configured to receive uplink transmission of the terminal on the FDD time domain resources.

In a possible implementation manner, the communication apparatus provided in an embodiment of the present application further includes: and a receiving unit, configured to receive, on the FDD uplink time domain resource, the uplink data sent by the terminal.

In a possible implementation manner, the communication apparatus provided in an embodiment of the present application further includes: the receiving unit is specifically configured to receive uplink data sent by the terminal on a part of or all of the time domain resources in the TDD non-uplink time domain resources, and hybrid automatic repeat request HARQ feedback sent on the FDD time domain resources.

In another possible design, an embodiment of the present application further provides a communication apparatus, which may be a second base station or a chip applied in the second base station, where the communication apparatus includes: a processor and a transceiver, wherein the transceiver is configured to support the communication device to perform the steps of receiving and transmitting messages/data on the communication device side as described in any one of the possible implementations of the second aspect to the second aspect. The processor is configured to support the communication device to perform the steps of message/data processing on the communication device side as described in any one of the possible implementations of the second aspect to the second aspect. For specific corresponding steps, reference may be made to descriptions in any one of possible implementation manners of the second aspect to the second aspect, and details are not repeated here.

The communication device includes: the transceiver is used for sending time division multiplexing configuration information to the terminal, and the time division multiplexing configuration information is used for indicating TDD time domain resources; the transceiver is used for sending TDD time domain resource configuration information communicated with the first base station to the terminal, wherein the TDD time domain resource configuration information is used for indicating a TDD non-uplink time domain resource, and the TDD non-uplink time domain resource is a time domain resource in the TDD time domain resource; and the transceiver is used for receiving the uplink transmission of the terminal on the FDD uplink time domain resource, wherein the FDD uplink time domain resource comprises part or all of the TDD non-uplink time domain resource.

In one possible implementation manner, the time division multiplexing configuration information is used to indicate a total time domain resource and an FDD time domain resource, where the total time domain resource includes the TDD time domain resource and the FDD time domain resource, and the TDD time domain resource and the FDD time domain resource are not overlapped in a time domain; the FDD uplink time domain resources further include FDD time domain resources, and the transceiver is further configured to receive uplink transmission of the terminal on the FDD time domain resources.

In a possible implementation manner, the communication apparatus provided in an embodiment of the present application further includes: the transceiver is specifically configured to receive uplink data sent by the terminal on the FDD uplink time domain resource.

In a possible implementation manner, the communication apparatus provided in an embodiment of the present application further includes: the transceiver is specifically configured to receive uplink data sent by the terminal on a part of or all of time domain resources in the TDD non-uplink time domain resources, and receive HARQ feedback of a hybrid automatic repeat request sent on FDD time domain resources.

Optionally, the communication device may further include: a processor, wherein the transceiver and the processor are coupled to each other.

Optionally, the communication device may further comprise a memory for storing code and data, the processor, the transceiver and the memory being coupled to each other.

In a fifth aspect, the present application provides a computer-readable storage medium having instructions stored therein, which when executed on a computer, cause the computer to perform the method for uplink transmission described in the first aspect or in various possible implementations of the first aspect.

In a sixth aspect, the present application provides a computer-readable storage medium having stored therein instructions which, when executed on a computer, cause the computer to perform a method of communication as described in the second aspect or in various possible implementations of the second aspect.

In a seventh aspect, the present application provides a computer program product comprising instructions that, when executed on a computer, cause the computer to perform the first aspect or one of the uplink transmission methods described in the various possible implementations of the first aspect.

In an eighth aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the second aspect or one of the communication methods described in the various possible implementations of the second aspect.

In a ninth aspect, embodiments of the present application provide a chip, where the chip includes a processor and an interface circuit, and the interface circuit is coupled to the processor, and the processor is configured to execute a computer program or instructions to implement the first aspect or one of the uplink transmission methods described in various possible implementations of the first aspect. The interface circuit is used for communicating with other modules outside the chip.

In a tenth aspect, embodiments of the present application provide a chip, where the chip includes a processor and an interface circuit, the interface circuit is coupled to the processor, and the processor is configured to execute a computer program or instructions to implement one of the communication methods described in the second aspect or various possible implementations of the second aspect. The interface circuit is used for communicating with other modules outside the chip.

In particular, the chip provided in the embodiments of the present application further includes a memory for storing a computer program or instructions.

In an eleventh aspect, an embodiment of the present application provides a communication apparatus, which includes one or more modules, configured to implement the method of the first aspect, the second aspect, the third aspect, or the fourth aspect, where the one or more modules may correspond to the steps of the method of the first aspect, the second aspect, the third aspect, or the fourth aspect.

In a twelfth aspect, an embodiment of the present application provides a communication system, including: an uplink transmission apparatus as described in various possible implementations of the third aspect, and a communication apparatus as described in various possible implementations of the fourth aspect.

Any one of the above-provided apparatuses, computer storage media, computer program products, chips, or communication systems is configured to execute the above-provided corresponding methods, and therefore, the beneficial effects that can be achieved by the apparatuses, the computer storage media, the computer program products, the chips, or the communication systems can refer to the beneficial effects of the corresponding schemes in the above-provided corresponding methods, and are not described herein again.

Drawings

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

fig. 2 is a first schematic structural diagram of a base station according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a base station according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 6a is a schematic view of a first subframe configuration according to an embodiment of the present disclosure;

fig. 6b is a schematic diagram of a second subframe configuration according to an embodiment of the present application;

fig. 7 is a first schematic diagram illustrating interaction of an uplink transmission method and a communication method according to an embodiment of the present application;

fig. 8 is a schematic diagram of another subframe configuration according to an embodiment of the present application;

fig. 9 is a second schematic diagram illustrating interaction of an uplink transmission method and a communication method according to an embodiment of the present application;

fig. 10 is a third schematic diagram illustrating interaction of an uplink transmission method and a communication method according to an embodiment of the present application

Fig. 11 is a schematic diagram of another subframe configuration according to an embodiment of the present application;

fig. 12 is a schematic view of another subframe configuration according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of an uplink transmission apparatus according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of another uplink transmission device according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

In the present application, "of", corresponding "(compatible)" and "corresponding" (compatible) "may be sometimes used in combination, and it should be noted that the intended meanings are consistent when the differences are not emphasized.

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the present application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple. In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

As shown in fig. 1, fig. 1 is a schematic diagram illustrating a communication system provided in an embodiment of the present application, where the communication system includes: one or more terminals (for example, terminal 101 in fig. 1), a first base station 102, and a second base station 103. The first base station 102 and the second base station 103 may be connected through a first interface. One or more terminals are in wireless communication with the first base station 102 and the second base station 103, respectively, e.g. terminal 101 is in communication with the first base station 102 and the second base station 103, respectively.

Optionally, the communication system shown in fig. 1 may further include a core network, and the first base station 102 and the second base station 103 may be connected to the core network. The Core network may be a 4G Core network (e.g., Evolved Packet Core (EPC)) or a 5G Core network (5G Core, 5 GC).

In the communication system shown in fig. 1, the terminal 101 may be in a Dual Connectivity (DC) scenario, and one of the first base station 102 and the second base station 103 may serve as a main base station and the other base station as a secondary base station. For example, the first base station 102 is a master base station, and the second base station 103 is a slave base station.

The master base station may be the first base station accessed by the terminal 101 in the random access process. The primary base station is responsible for establishing a control plane connection with the core network control plane entity, transmitting signaling messages, and deciding whether to create a secondary base station for the terminal 101. In addition, the master base station may also select a secondary base station for the terminal 101. The main base station supports signaling plane access management of the terminal 101 and user plane offloading.

The secondary base station may be a second base station, which is different from the main base station 102, and is a node for providing additional radio resources for the terminal 101, and there may be no direct control plane connection with the core network control plane entity. The secondary base station supports offloading of the user plane of the terminal 101.

For example, in this embodiment, the first base station 102 and the second base station 103 may be base stations of the same network standard. For example, the network standard corresponding to the first base station 102 and the second base station 103 is an evolved Node B (eNB) or eNodeB in a 4G system. For another example, The network formats corresponding to The first base station 102 and The second base station 103 may be all Next Generation Node bs (gnbs) in an NR system.

For another example, in this embodiment, the first base station 102 and the second base station 103 may be base stations of different network systems. For example, the network standard corresponding to the first base station 102 is eNB in a 4G system, and the network standard corresponding to the second base station 103 is gNB in an NR system. Or the network standard corresponding to the first base station 102 is a gNB under the NR system, and the network standard corresponding to the second base station 103 is an eNB under the 4G system.

In yet another example, the first base station 102 is a 3rd generation partnership project (3 GPP) protocol base station and the second base station 103 is a non-3 GPP protocol base station.

Since the network systems of the first base station 102 and the second base station 103 are different, and the names of the first interfaces are also different, the following description will be separately given:

for example, when the network types corresponding to the first base station 102 and the second base station 103 are both gnbs in an NR system, the first interface is an Xn interface.

For example, when the network standard corresponding to the first base station 102 is eNB in a 4G system, and the network standard corresponding to the second base station 103 is gNB in an NR system, the first interface is an X2 interface. For example, when the network standard of each of the first base station 102 and the second base station 103 is eNB in a 4G system, the first interface is an X2 interface. For example, when the network standard corresponding to the first base station 102 is a gNB in an NR system, and the network standard corresponding to the second base station 103 is an eNB in an LTE system, the first interface is an X2 interface.

The name of the first interface is merely an example, and the name of the interface between the first base station and the second base station is not limited in the embodiments of the present application.

A wireless Uu port may be established between the main base station and the terminal 101, and a wireless Uu port may also be established between the secondary base station and the terminal 101. For example, when the first base station 102 serves as a main base station, the first base station 102 may transmit user plane data and control plane signaling with the terminal 101 through the Uu port; when the second base station 103 is a secondary base station, the second base station 103 and the terminal 101 may transmit user plane data with the terminal through the wireless Uu port. Wherein, the user plane of the Uu interface mainly transmits user data; the control plane transmits related signaling, and establishes, reconfigures and releases various mobile communication radio bearer services.

In the above, according to the network types of the first base station 102 and the second base station 103 and the network type of the core network, the dual connection may be divided into dual connections in different scenarios, and in the following, taking the second base station 103 as a main base station and the first base station 102 as an auxiliary base station as an example, the dual connection may have the following scenarios:

(1) evolved Universal Terrestrial Radio Access (E-UTRA) and New Radio Access (NR) Dual Connectivity (E-UTRA-NR Dual Connectivity, EN-DC).

The first base station 102 is a gNB in NR, the second base station 103 is an eNB in LTE, and the core network is an EPC.

(2) Double ligation of NR and E-UTRA (NR-E-UTRA Dual Connectivity, NE-DC)

The first base station 102 is an eNB in NR, the second base station 103 is a gNB in NR, and the core network is 5 GC.

(3) Next Generation (NG) Radio Access Network (RAN) E-UTRA and NR Dual Connectivity (NG-RAN E-UTRA-NR Dual Connectivity, NGEN-DC)

The first base station 102 is a gNB in LTE, the second base station 103 is an eNB in NR, and the core network is 5 GC.

In the communication system shown in fig. 1, the duplexing technique of the terminal 101 communicating with the first base station 102 and the duplexing technique of the terminal 102 communicating with the second base station 103 may be different. For example, the terminal 101 communicates with the first base station 102 through a first communication duplexing technique, and the terminal 101 communicates with the second base station 103 through a second communication duplexing technique. For example, the first communication duplex technology may be Frequency Division Duplex (FDD) and the second communication duplex technology may be Time Division Duplex (TDD). Alternatively, the first communication duplexing technique may be TDD and the second communication duplexing technique may be FDD.

In this embodiment, TDD may refer to that uplink and downlink use the same frequency band to transmit on different time domain resources, for example, both uplink and downlink use frequency band 1, uplink transmits on time domain resource 1, and downlink transmits on time domain resource 2. FDD may refer to that uplink and downlink use different frequency bands to transmit on the same time domain resource, for example, uplink and downlink both use time domain resource 3, uplink uses frequency band 2 to transmit, and downlink uses frequency band 3 to transmit.

In the embodiment of the present application, the TDD may be a TDD in Long Term Evolution (LTE). In LTE, TDD is configured with 7 uplink and downlink subframe ratios, as shown in table 1, a base station may send one of the 7 uplink and downlink subframe ratios to a terminal 101.

TABLE 1 uplink and downlink subframe ratio

The TDD uplink/downlink subframe ratio shown in table 1 may indicate positions of a downlink subframe (D), an uplink subframe (U), and a special subframe (U). The terminal 101 and the base station perform uplink transmission on the uplink subframe indicated by the TDD uplink/downlink subframe allocation, and perform downlink transmission on the downlink subframe indicated by the TDD uplink/downlink subframe allocation. The special subframe is used for switching between downlink transmission and uplink transmission.

In the embodiment of the present application, the TDD may be a TDD in a New Radio (NR) system. The TDD employed by the NR may be referred to as dynamic TDD. In NR, time domain resources are allocated in units of slots or symbols, not subframes. The base station may send time domain resource configuration information to the terminal 101, where the time domain resource configuration information may indicate a downlink time domain resource, an uplink time domain resource, and a flexible time domain resource in the time domain resource, and for example, the time domain resource configuration information may indicate according to a form of the downlink time domain resource-the flexible time domain resource-the uplink time domain resource. In addition, NR is not limited to the TDD 7 uplink and downlink subframe ratios, the position and number of downlink symbols, flexible symbols, or uplink symbols in the indicated time domain resource may be determined according to the scheduling condition, and the frequency spectrum of TDD in NR may be referred to as a paired frequency spectrum.

In the embodiment of the present application, FDD may be FDD in LTE. In LTE, a terminal may be assigned an uplink frequency band and a downlink frequency band, where the uplink frequency band is used for uplink transmission and the downlink frequency band is used for downlink transmission. The uplink and downlink are distinguished through different uplink and downlink frequency bands, and uplink transmission and downlink transmission can be simultaneously carried out on a time domain resource, namely, the time domain resource is an uplink time domain resource and a downlink time domain resource.

In the embodiment of the present application, FDD may be FDD in NR. In NR, an uplink BWP and a downlink BWP may be allocated to a terminal, where time domain resources of the uplink BWP and the downlink BWP may be configured according to an NR TDD mode, and a time domain resource corresponding to the uplink BWP may be configured through time domain resource configuration information, for example, the time domain resource corresponding to the uplink BWP is configured as a flexible time domain resource-an uplink time domain resource through time domain resource configuration information, and even the time domain resource corresponding to the uplink BWP is configured as a downlink time domain resource-a flexible time domain resource-an uplink time domain resource through time domain resource configuration information; the time domain resource corresponding to the downlink BWP may be configured by the time domain resource configuration information, for example, the time domain resource corresponding to the downlink BWP is configured as the downlink time domain resource-flexible time domain resource by the time domain resource configuration information, or even the time domain resource corresponding to the downlink BWP is configured as the downlink time domain resource-flexible time domain resource-uplink time domain resource by the time domain resource configuration information. The spectrum for FDD in NR may be referred to as unpaired spectrum, and TDD and/or FDD in NR may be referred to as flexible duplexing.

The TDD and/or FDD of the embodiments of the present application may include TDD and/or FDD of an evolution of a future communication system, and names of the TDD and/or FDD may be changed, which may include TDD and/or FDD of the embodiments of the present application.

In the embodiment of the present application, a terminal (terminal) is a device providing voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like. A Terminal may also be referred to as a User Equipment (UE), an Access Terminal (Access Terminal), a subscriber Unit (User Unit), a subscriber Station (User Station), a Mobile Station (Mobile Station), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), a Mobile device (Mobile Equipment), a User Terminal (User Terminal), a Wireless communication device (Wireless Terminal Equipment), a User Agent (User Agent), User Equipment (User Equipment), or a User device. The terminal may be a Station (STA) in a Wireless Local Area Network (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) Station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, and a terminal in a next Generation communication system (e.g., a Fifth-Generation (5G) communication Network) or a terminal in a future-evolution Public Land Mobile Network (PLMN) Network, and the like. Among them, 5G may also be referred to as New Radio (NR).

As an example, in the embodiment of the present application, the terminal may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

In the embodiment of the present application, a base station is an entity that can be used to transmit or receive a signal and is used in cooperation with a terminal. For example, the ue may be an evolved Node B (eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a base station in a future 5G network or a base station in a future evolved PLMN network.

In addition, in the embodiment of the present invention, the base station provides a service for a cell, and the terminal performs wireless communication with the base station through a transmission resource (for example, a time domain resource, or a frequency domain resource, or a time frequency resource) used by the cell. The cell may be a cell corresponding to a base station, and the cell may belong to a macro base station or a base station corresponding to a small cell (small cell). Here, the small cell may include: urban cell (metro cell), micro cell (microcell), Pico cell (Pico cell), femto cell (femto cell), etc., which have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission service.

The future base station can be implemented by adopting a cloud radio access network (C-RAN) architecture. One possible way is to divide the protocol stack architecture and functionality of the legacy base station into two parts, one part being called a Central Unit (CU) and the other part being called a Distributed Unit (DU). As shown in fig. 2, CU parts of a plurality of base stations are integrated together to form a large-scale functional entity. Multiple DUs can be centrally controlled by one CU. As shown in fig. 2, the CU and the DU may be divided according to protocol layers of the wireless network, for example, functions of a Packet Data Convergence Protocol (PDCP) layer and a protocol layer (e.g., Radio Resource Control (RRC)) are provided in the CU. The protocol layers below the PDCP layer, such as Radio Link Control (RLC), Medium Access Control (MAC), and Physical layer (PHY), are provided in the DU.

It is understood that the division of the protocol layers shown in fig. 2 is only an example, and the division may also be performed in other protocol layers, for example, in the RLC layer, the functions of the RLC layer and the protocol layers above are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU. Alternatively, the functions are divided into some protocol layers, for example, a part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are provided in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are provided in the DU. In addition, the processing time may be divided in other manners, for example, by time delay, a function that needs to satisfy the time delay requirement for processing is provided in the DU, and a function that does not need to satisfy the time delay requirement is provided in the CU. The embodiments of the present application do not limit this.

In addition, with continuing reference to fig. 3, with respect to the architecture shown in fig. 2, the Control Plane (CP) and the User Plane (UP) of the CU may be separated and implemented by being divided into different entities, i.e. a control plane CU entity (CU-CP entity) and a user plane CU entity (CU-UP entity), respectively.

In the above network architecture, data generated by a CU may be transmitted to a terminal through a DU. Or the data generated by the terminal may be transmitted to the CU through the DU. The DU may not parse the data and directly encapsulate the data through a protocol layer and transmit the encapsulated data to the terminal or CU. For example, data of the RRC or PDCP layer is finally processed into data of a physical layer (PHY) and transmitted to the terminal, or converted from received data of the PHY layer. Under this architecture, the data of the RRC or PDCP layer can also be considered to be transmitted by the DU.

In the above embodiment, the CU is divided into base stations in the RAN, and furthermore, the CU may also be divided into base stations in the core network CN, which is not limited herein.

The apparatus in the following embodiments of the present application may be located in a terminal or a base station according to the functions implemented by the apparatus. When the above structure of CU-DU is adopted, the base station may be a CU node, or a DU node, or a RAN device including the functions of the CU node and the DU node.

Fig. 4 is a schematic structural diagram of a base station. The structure of the first base station and the second base station may refer to the structure shown in fig. 4.

The base station includes at least one processor 1111, at least one memory 1112, at least one transceiver 1113, at least one network interface 1114, and one or more antennas 1115. The processor 1111, memory 1112, transceiver 1113, and network interface 1114 are connected, such as by a bus. The antenna 1115 is connected to the transceiver 1113. Network interface 1114 is used to enable the base station to connect to other communication devices via a communication link, e.g., the base station to a core network element via an S1 interface/NG interface. In the embodiment of the present application, the connection may include various interfaces, transmission lines, buses, and the like, which is not limited in this embodiment.

The processors in the embodiments of the present application, such as the processor 1111, may include at least one of the following types: a general-purpose Central Processing Unit (CPU), a Digital Signal Processor (DSP), a microprocessor, an Application-specific integrated Circuit (ASIC), a Microcontroller (MCU), a Field Programmable Gate Array (FPGA), or an integrated Circuit for implementing logical operations. For example, the processor 1111 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The at least one processor 1111 may be integrated in one chip or located on multiple different chips.

The memory in the embodiments of the present application, for example, the memory 1112, may include at least one of the following types: read-only memory (ROM) or other types of static memory devices that may store static information and instructions, Random Access Memory (RAM) or other types of dynamic memory devices that may store information and instructions, and Electrically erasable programmable read-only memory (EEPROM). In some scenarios, the memory may also be, but is not limited to, a compact disk-read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

The memory 1112 may be separate and coupled to the processor 1111. Alternatively, the memory 1112 may be integrated with the processor 1111, for example, within a chip. The memory 1112 can store program codes for executing the technical solutions of the embodiments of the present application, and the processor 1111 controls the execution of the program codes, and various executed computer program codes can also be regarded as drivers of the processor 1111. For example, the processor 1111 is configured to execute the computer program code stored in the memory 1112, thereby implementing the technical solution in the embodiment of the present application.

The transceiver 1113 may be configured to support reception or transmission of radio frequency signals between the base station and the terminals, and the transceiver 1113 may be coupled to the antenna 1115. The transceiver 1113 includes a transmitter Tx and a receiver Rx. Specifically, the one or more antennas 1115 may receive rf signals, and the receiver Rx of the transceiver 1113 is configured to receive the rf signals from the antennas, convert the rf signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to the processor 1111, so that the processor 1111 may further process the digital baseband signals or digital intermediate frequency signals, such as demodulation and decoding. In addition, the transmitter Tx in the transceiver 1113 is also configured to receive a modulated digital baseband signal or a digital intermediate frequency signal from the processor 1111, convert the modulated digital baseband signal or the digital intermediate frequency signal into a radio frequency signal, and transmit the radio frequency signal through the one or more antennas 1115. Specifically, the receiver Rx may selectively perform one or more stages of down-mixing and analog-to-digital conversion processes on the rf signal to obtain a digital baseband signal or a digital intermediate frequency signal, wherein the order of the down-mixing and analog-to-digital conversion processes is adjustable. The transmitter Tx may selectively perform one or more stages of up-mixing and digital-to-analog conversion processes on the modulated digital baseband signal or the modulated digital intermediate frequency signal to obtain the rf signal, where the order of the up-mixing and the digital-to-analog conversion processes is adjustable. The digital baseband signal and the digital intermediate frequency signal may be collectively referred to as a digital signal.

Fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application. The structure of the terminal 101 can refer to the structure shown in fig. 5.

The terminal includes at least one processor 1211, at least one transceiver 1212, and at least one memory 1213. The processor 1211, the memory 1213 and the transceiver 1212 are coupled. Optionally, terminal 121 may also include an output device 1214, an input device 1215, and one or more antennas 1216. An antenna 1216 is coupled to the transceiver 1212, and an output device 1214 and an input device 1215 are coupled to the processor 1211.

The transceiver 1212, memory 1213, and antenna 1216 may perform similar functions as described with respect to fig. 4.

The processor 1211 may be a baseband processor or a CPU, and the baseband processor and the CPU may be integrated together or separated.

The processor 1211 may be used to implement various functions for the terminal, such as processing a communication protocol and communication data, or controlling the entire terminal device, executing a software program, processing data of the software program; or to assist in completing computational processing tasks, such as processing of graphical images or audio, etc.; or processor 1211 may be used to perform one or more of the functions described above

The output device 1214 is in communication with the processor 1211 and may display information in a variety of ways. For example, the output device 1214 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) Display device, a Cathode Ray Tube (CRT) Display device, a projector (projector), or the like. The input device 1215 is in communication with the processor 1211 and may accept user input in a variety of ways. For example, the input device 1215 can be a mouse, a keyboard, a touch screen device, or a sensing device, among others.

In the communication system shown in fig. 1, when dual connection is performed, the uplink transmission power of the terminal 101 may be limited, and the problem of the limitation of the uplink transmission power of the terminal 101 may be solved by an uplink time division multiplexing TDM mode. In the TDM mode, uplink time domain resources between the terminal 101 and the first base station 102 and uplink time domain resources between the terminal 101 and the second base station 103 are different. For example, the terminal 101 transmits uplink to the first base station 102 on uplink time domain resource 1. The terminal 101 sends uplink to the second base station 103 on the uplink time domain resource 2, and the uplink time domain resource 1 and the uplink time domain resource 2 are not overlapped on the time domain. By configuring TDM for the terminal, the power of sending uplink transmission from the terminal 101 to the first base station 102 and the power of sending uplink transmission from the terminal 101 to the second base station 103 both reach the maximum uplink transmission power. For example, in an EN-DC scenario, the uplink transmit power of the terminal under sub6G is 23dBm, and through the uplink time division multiplexing, the terminal 101 sends the uplink transmission maximum transmit power to the second base station 103 as 23dBm, and the terminal 101 sends the uplink transmission maximum transmit power to the first base station 102 as 23 dBm.

It is understood that table 1 may also be configured as a TDM-Pattern (Pattern Config). Taking table 1 as an example, table 1 shows a TDM-Pattern Config in 7, and the network side may indicate one of the 7 TDM-Pattern configs to the terminal according to actual needs. For example, if the terminal needs to perform uplink transmission to the second base station on more time domain resources, the TDM-Pattern Config corresponding to index 0 may be configured for the terminal. In addition, the terminal and the network side may agree or the network side may instruct the terminal 101 to send the uplink transmission to the first base station 102 on the time domain resource corresponding to the "D/S" subframe, and send the uplink transmission to the second base station 103 on the time domain resource corresponding to the "U" subframe. Alternatively, the terminal and the network side may agree or the network side may instruct the terminal 101 to send the uplink transmission to the first base station 102 on the time domain resource corresponding to the "U" subframe, and send the uplink transmission to the second base station 103 on the time domain resource corresponding to the "D/S" subframe. After the terminal 101 may combine the TDM-Pattern Config and the time domain resource configuration information, it may determine an uplink time domain resource corresponding to a "D/S" subframe and an uplink time domain resource corresponding to a "U" subframe, perform uplink transmission between the uplink time domain resource corresponding to the "D/S" subframe and the first base station 102, and perform uplink transmission between the uplink time domain resource corresponding to the "U" subframe and the second base station 103, so that the time domain resources for transmitting uplink transmission from the terminal 101 to the first base station 102 and the second base station 103 may not overlap, thereby implementing TDM.

However, in the above scheme, if the terminal performs uplink scheduling completely according to the TDM-pattern config configured on the network side, a part of the time domain resources may not be used for LTE uplink or NR uplink, resulting in a low uplink time domain resource utilization rate.

The following description will take the first base station 102 as a gbb, the second base station 103 as an eNB, the terminal 101 and the first base station 102 communicate using TDD technology, and the terminal 101 and the second base station 103 communicate using FDD technology as an example.

As shown in fig. 6a, the TDM-pattern config configured for the terminal at the network side is the configuration (i.e., DSUDDDSUDD) corresponding to the index 2 in table 1. In the following embodiments, a time domain resource corresponding to a "D/S" subframe agreed by a network side and a terminal may be used for uplink transmission between the terminal 101 and the first base station 102 (i.e., TDD time domain resource), and a time domain resource corresponding to a "U" subframe may be used for uplink transmission between the terminal 101 and the second base station 103 (i.e., FDD time domain resource) are taken as an example.

The terminal 101 and the second base station 103 communicate with each other through FDD, and the network side may configure, for the terminal 101, the time domain resource corresponding to the TDM-pattern config, which may be used for uplink transmission with the second base station 103, that is, the time domain resource uplink time domain resource corresponding to the TDM-pattern config.

The time domain resource configuration information configured by the network side for the terminal 101 and the first base station 102 is an 8:2 time slot ratio (in fig. 6a, when the subcarrier interval is 30kHz, 1ms includes 2 time slots, and each time slot occupies 0.5ms, for example), for example, the time domain resource configuration information configured by the network side for the terminal and between the network side and the first base station 102 is DDDDDDDSUU.

The terminal 101 may determine, by combining the "D/S" subframe in the TDM-pattern config and the time domain resource configuration information between the terminal 101 and the first base station 102, an uplink time domain resource (i.e., TDD uplink time domain resource) that the terminal 101 may perform uplink transmission with the first base station 102.

Referring to fig. 6a, the uplink time domain resource corresponding to the TDM-pattern config "D/S" subframe includes: slot 8, slot 9, slot 18, and slot 19. The

time slots

8 and 9 correspond to the subframe No. 5, and the

time slots

18 and 19 correspond to the subframe No. 9. That is, the terminal performs uplink transmission to the first base station 102 on all or part of the time domain resources in the time slot 8, the time slot 9, the time slot 18, and the time slot 19.

The terminal 101 may determine, in combination with the "U" subframe in the TDM-pattern config, an uplink time domain resource (i.e., FDD uplink time domain resource) corresponding to the TDM-pattern config "U" subframe. The terminal 11 may perform uplink transmission with the second base station 103 in the uplink time domain resource corresponding to the "U" subframe in the TDM-pattern config.

Referring to fig. 6a, the uplink time domain resource corresponding to the "U" subframe in the TDM-PatternConfig includes: subframe No. 2 and subframe No. 7. That is, the terminal may perform uplink transmission with the second base station 103 on all or part of the time domain resources in the subframe No. 2 and the subframe No. 7.

In the above scheme, the subframe 0, the subframe 1, the subframe 5, and the subframe 6 are not used as time domain resources between the terminal 101 and the base station 102, nor are used as time domain resources between the terminal 101 and the base station 103, and are in an idle state, which causes uplink time domain resource waste. Based on this, when the terminal performs uplink transmission with the second base station 103, if uplink time domain resource allocation is performed according to the indication of the TDM-pattern config, a large amount of uplink time domain resources are wasted.

Based on this, the embodiment of the present application provides an uplink transmission method, where the terminal 101 may determine the TDD time domain resource where the terminal 101 and the first base station 102 may perform uplink transmission by acquiring the time division multiplexing configuration information. In practice, when the terminal communicates with the first base station 102, not all TDD time domain resources in the TDD time domain resources are used, and the terminal 101 obtains the TDD time domain resource configuration information communicated with the first base station 102, so that the TDD time domain resources that cannot be used for uplink transmission in the TDD time domain resources, such as the TDD non-uplink time domain resources, can be determined, and when the terminal 101 communicates with the second base station 103, the TDD non-uplink time domain resources can be used. The utilization rate of uplink time domain resources can be improved in the TDM uplink power control mode, the loss of the uplink time domain resources is reduced, and the uplink transmission performance is greatly improved.

The following first explains some words that may appear in the embodiments of the present application.

1) The time domain resource may be a resource in a continuous or discontinuous time domain, the time domain resource may include 1 or more continuous or discontinuous symbols, and a part of or all of the 1 or more symbols may belong to 1 or more slots.

2) The TDD time domain resource refers to a time domain resource that can be used when the terminal communicates with the base station by using the TDD technology. The TDD time domain resource may be configured for the terminal by the network side.

3) The FDD time domain resource refers to a time domain resource which can be used when the terminal adopts the FDD technology to communicate with the base station. The FDD time domain resource may be configured for the terminal by the network side.

4) The TDD non-uplink time domain resource refers to a time domain resource in an idle state when the terminal communicates with the base station by using a TDD technology, for example, a non-uplink time domain resource in the TDD time domain resource. The time domain resource may refer to a part of uplink time domain resources that are not used by the terminal in the time domain resources that are configured for the terminal by the network side and that can perform uplink transmission with the base station. For example, all or part of the time domain resources corresponding to subframe No. 0, subframe No. 1, subframe No. 5, and subframe No. 6 in fig. 3.

The TDD time domain resource configuration information may include cell-level semi-static configuration information, user-level semi-static configuration information, and user-level dynamic configuration information, which may be collectively referred to as time domain resource configuration information.

For convenience of description, in this embodiment of the present application, when a timeslot is used for uplink transmission, the timeslot may be referred to as an uplink timeslot, a time domain resource corresponding to the timeslot is referred to as an uplink time domain resource, and at this time, all symbols in the timeslot are uplink symbols. When a slot is used for downlink transmission, the slot may be referred to as a downlink slot, and all symbols in the slot are downlink symbols. When one symbol is used for uplink transmission, the symbol may be referred to as an uplink symbol. When one symbol is used for downlink transmission, the symbol may be referred to as a downlink symbol. When a subframe is used for uplink transmission, all or part of the time domain resources corresponding to the subframe may be used as uplink time domain resources. When a subframe is used for uplink transmission, all or part of the time domain resources corresponding to the subframe may be used as uplink time domain resources. When a subframe is a flexible/special subframe, all or part of the time domain resources corresponding to the flexible subframe may be flexible time domain resources.

The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

For convenience of description, the second base station 103 is hereinafter referred to as eNB, and communicates with the terminal 101 by using FDD technology. The first base station 102 is a gNB, and the first base station 102 and the terminal 101 communicate by using TDD technology as an example for description. The second base station 103 may be a primary base station and the first base station 102 may be a secondary base station, for example in an EN-DC or an NGEN-DC scenario, the second base station 103 may be the primary base station and the first base station 102 may be the secondary base station. The first base station 102 may be a primary base station and the second base station 103 may be a secondary base station, e.g. in NE-DC scenarios, the first base station 102 is the primary base station and the second base station 103 is the secondary base station.

It should be noted that the scheme in this embodiment of the present application may also be applied to a scenario that the second base station 103 may also be a gNB, the first base station 102 may also be a gNB, or the second base station 103 may also be an eNB, and the first base station 102 may also be an eNB, and the like, which is not limited in this embodiment of the present application.

An execution main body of the uplink transmission method provided by the embodiment of the present application may be a terminal, and may also be a device, such as a chip, applied to the terminal. The main body of execution of a communication method may be a base station, or may be a device, such as a chip, applied to the base station. The following embodiments only take the execution subject of the uplink transmission method as the terminal, and the execution subject of the communication method as the base station.

Fig. 7 shows a flowchart of an uplink transmission method provided in an embodiment of the present application, in the scheme shown in fig. 7, a terminal 101 has dual connections with a first base station 102 and a second base station 103, the terminal 101 and the first base station 102 communicate using TDD technology, and the terminal 101 and the second base station 103 communicate using FDD technology. Optionally, one of the first base station 102 and the second base station 103 may be a main base station, and the other is a secondary base station, for example, the first base station 102 is the main base station, and the second base station 103 is the secondary base station. Alternatively, the second base station 103 is a master base station, and the first base station 102 is a slave base station. Optionally, the network types respectively corresponding to the first base station 102 and the second base station 103 may adopt the description in the above embodiment, for example, the first base station 102 may be a gNB, and the second base station 103 may be an eNB, which is not described herein again.

As shown in fig. 7, the method includes:

s101, the second base station 103 sends time division multiplexing configuration information to the terminal 101, where the time division multiplexing configuration information is used to indicate TDD time domain resources for the terminal to communicate with the first base station.

For example, as shown in fig. 6b, the time division multiplexing configuration information may indicate one of the time division multiplexing configurations indicated in table 1 above, for example, the time division multiplexing configuration may be indicated by indicating one index in table 1. For example, the time division multiplexing configuration information is index 0, and the time division multiplexing configuration indicated by index 0 is DSUDDDSUDD.

Optionally, before S101 or after S101, the terminal 101 and the network side may agree or the network side may instruct that the terminal 101 may perform uplink transmission with the first base station 102 and the second base station 103 on different types of subframes in the time division multiplexing configuration, for example, the terminal 101 may perform uplink transmission with the first base station 102 on a time domain resource corresponding to a "D/S" subframe and perform uplink transmission with the second base station 103 on a time domain resource corresponding to a "U" subframe.

The time division multiplexing configuration information is used to indicate a TDD time domain resource, and the TDD time domain resource may be understood as all or a part of the time domain resource corresponding to the subframe type of the terminal 101 and the first base station 102 that are indicated by the time division multiplexing configuration information and performing uplink transmission.

For example, as shown in fig. 6b, the time division multiplexing configuration subframe No. 0, subframe No. 1, subframe No. 3, subframe No. 4, subframe No. 5, subframe No. 6, subframe No. 8 and subframe No. 9 indicated by index 0 are "D/S" subframes, and then all or part of the time domain resources corresponding to subframe No. 0, subframe No. 1, subframe No. 3, subframe No. 4, subframe No. 5, subframe No. 6, subframe No. 8 and subframe No. 9 are TDD time domain resources.

Optionally, the time division multiplexing configuration information may also be sent to the terminal 101 by the first base station 102.

Optionally, both the first base station 102 and the second base station 103 may store the time division multiplexing configuration information.

Optionally, the time division multiplexing configuration information is used to refer to an FDD time domain resource, and the FDD time domain resource may be understood as all or part of the time domain resource corresponding to the subframe type of the terminal 101 and the second base station 102, where the subframe type is indicated by the time division multiplexing configuration information and used for uplink transmission.

For example, as shown in fig. 6b, the subframe No. 2 and the subframe No. 7 of the time division multiplexing configuration indicated by the index 0 are "U" subframes, and then all or part of the time domain resources corresponding to the subframe No. 2 and the subframe No. 7 are FDD time domain resources.

Optionally, the TDD time domain resource and the FDD time domain resource indicated by the time division multiplexing configuration information may be referred to as a total time domain resource.

S102, the terminal 101 obtains the time division multiplexing configuration information.

For example, the terminal 101 may obtain the time division multiplexing configuration information from the second base station 103/the first base station 102 in S101. Of course, the terminal 101 may acquire the time division multiplexing configuration information from its own configuration. When the terminal 101 acquires the time division multiplexing configuration information from its own configuration, S101 may be omitted.

S103, the first base station 102 sends TDD time domain resource configuration information of the first base station 102 to the terminal 101, where the TDD time domain resource configuration information is used to indicate a TDD non-uplink time domain resource, and the TDD non-uplink time domain resource is a time domain resource in the TDD time domain resources.

Optionally, the TDD time domain resource configuration information is used to indicate one or more of an uplink time domain resource, a downlink time domain resource, and a flexible time domain resource in the TDD time domain resource. Specifically, the TDD time domain resource configuration information is used to indicate at least one time slot and a symbol type in each of the at least one time slot. For example, the symbol type may be an uplink symbol, a downlink symbol, or a flexible symbol.

Optionally, the TDD time domain resource configuration information may be one or more of cell-level semi-static configuration information, user-level semi-static configuration information, and user-level dynamic configuration information, for example, the TDD time domain resource configuration information may be cell-level semi-static configuration information; or, the TDD time domain resource configuration information may be cell-level semi-static configuration information and user-level semi-static configuration information; or, the TDD time domain resource configuration information may be cell-level semi-static configuration information and user-level dynamic configuration information; alternatively, the TDD time domain resource configuration information may be cell-level semi-static configuration information, user-level semi-static configuration information, and user-level dynamic configuration information.

The cell-level semi-static configuration information may be understood as time domain resource configuration information effective for a terminal in a cell, and may be carried in a broadcast message for issuing, for example. The user-level semi-static configuration information may be understood as performing further configuration on the flexible time domain Resource configured by the cell-level semi-static configuration information for a specific terminal, for example, further configuring a flexible symbol in the flexible time domain Resource configured by the cell-level semi-static configuration information as an uplink symbol or a flexible symbol, for example, the user-level semi-static configuration information may be carried in a Radio Resource Control (RRC) message. The user-level dynamic configuration information may be understood as performing further configuration on the flexible time domain resource configured by the cell-level semi-static configuration information or the user-level semi-static configuration information for a specific terminal, for example, further configuring a flexible symbol in the flexible time domain resource configured by the cell-level semi-static configuration information as an uplink symbol or a flexible symbol, or further configuring a flexible symbol in the flexible time domain resource configured by the user-level semi-static configuration information as an uplink symbol or a flexible symbol, for example, the user-level dynamic configuration information may be carried in Downlink Control Information (DCI).

Optionally, the TDD time domain resource configuration information may indicate one or more of an uplink time domain resource, a downlink time domain resource, and a flexible time domain resource in the TDD time domain resource.

In a first implementation manner, the time division multiplexing configuration information is further used to indicate FDD time domain resources, and the TDD time domain resource configuration information may indicate one or more of uplink time domain resources, downlink time domain resources, and flexible time domain resources in the total time domain resources indicated by the time division multiplexing configuration information.

For example, as shown in fig. 6b, the TDD time domain resource configuration information may indicate that the slot pattern in the total time domain resource indicated by the time division multiplexing configuration information is dddddsuu. It should be noted that the S slot is a special slot, and may include one or two of a downlink symbol, a flexible symbol, and an uplink symbol, when the S slot includes an uplink symbol, the S slot may be used for uplink transmission between the terminal 101 and the first base station 102, for example, the uplink symbol in the S slot may be used for uplink transmission between the terminal 101 and the first base station 102. Here, the symbols in the S slot are all flexible symbols, and the first base station 102 cannot perform uplink transmission with the first base station 102 using the S slot, and after the flexible symbols in the S slot are configured as uplink symbols, the terminal 101 may perform uplink transmission with the first base station 102 using the uplink symbols in the S slot.

As shown in fig. 6b, if timeslots 0-6 (including timeslot 0, timeslot 1, timeslot 2 · timeslot 6, and denoted timeslot 0-6 for convenience of description, and similar elsewhere in this application) and timeslots 10-16 are downlink timeslots, then each of timeslots 0-6 and 10-16 is used for downlink transmission between terminal 101 and first base station 102. Therefore, the terminal 101 may not perform uplink transmission with the first base station 102 on all time domain resources corresponding to each of the time slots 0 to 6 and the time slots 10 to 16.

Time slots

7 and 17 are flexible time slots, and

time slots

8, 9, 18, and 19 are uplink time slots. Terminal 101 may perform uplink transmission with first base station 102 on all or a portion of the time domain resources corresponding to time slots 7-9 and time slots 17-19. It should be noted that, here, the

time slots

7 and 17 are flexible time slots, all symbols in the

time slots

7 and 17 may be flexible symbols, and for at least one flexible symbol, the base station 102 may further perform configuration through user-level semi-static configuration information or user-level dynamic configuration information, for example, configure the at least one flexible symbol as an uplink symbol or a downlink symbol.

In a second implementation manner, the TDD time domain resource configuration information may indicate one or more of an uplink time domain resource, a downlink time domain resource, and a flexible time domain resource in the TDD time domain resource.

For example, the TDD time domain resource configuration information may indicate that the slot pattern in the TDD time domain resource is dddddsuudddsuu.

For example, the TDD time domain resource configuration information may indicate at least one of a downlink time domain resource, a flexible time domain resource and an uplink time domain resource in the TDD time domain resource, for example, all or part of the time domain resources corresponding to subframe No. 0, subframe No. 1, subframe No. 3, subframe No. 4, subframe No. 5, subframe No. 6, subframe No. 8 and subframe No. 9 are TDD time domain resources, and the TDD time domain resource configuration information may indicate uplink time domain resources, in subframe No. 0 (timeslot No. 0 and timeslot No. 1), subframe No. 1 (timeslot No. 2 and timeslot No. 3), subframe No. 3 (timeslot No. 6 and timeslot No. 7), subframe No. 4 (timeslot No. 8 and timeslot No. 9), subframe No. 5 (timeslot No. 10 and timeslot 11), subframe No. 6 (timeslot No. 12 and timeslot No. 13), subframe No. 8 (timeslot 16 and timeslot 17), and subframe No. 9 (timeslot No. 18 and timeslot 19), respectively, For example, the time domain resource configuration information may indicate that the time domain resources corresponding to subframe No. 0, subframe No. 1, subframe No. 5, and subframe No. 6 are downlink time domain resources, the first half time domain resource (time slot No. 6) corresponding to subframe No. 3 is a downlink time domain resource, the second half time domain resource (time slot No. 7) corresponding to subframe No. 3 is a flexible time domain resource, the time domain resource corresponding to subframe No. 4 is an uplink time domain resource, the first half time domain resource (time slot No. 16) corresponding to subframe No. 8 is a downlink time domain resource, the second half time domain resource (time slot No. 17) corresponding to subframe No. 8 is a flexible time domain resource, and the time domain resource corresponding to subframe No. 9 is an uplink time domain resource.

The TDD time domain resource configuration information is used to indicate a TDD non-uplink time domain resource, and the TDD non-uplink time domain resource is at least one of a downlink time domain resource and a flexible time domain resource in the TDD time domain resource. For example, the TDD non-uplink time domain resource is a downlink time domain resource in the TDD time domain resource. Or, the TDD non-uplink time domain resource is a flexible time domain resource in the TDD time domain resource. Or, the TDD non-uplink time domain resource is a downlink time domain resource and a flexible time domain resource in the TDD time domain resource. Taking TDD non-uplink time domain resources as downlink time domain resources and flexible time domain resources in the TDD time domain resources as an example, in the first implementation manner and the second implementation manner, the TDD non-uplink time domain resources are No. 0 subframes (No. 0 time slot and No. 1 time slot), No. 1 subframes (No. 2 time slot and No. 3 time slot), No. 3 subframes (No. 6 time slot and No. 7 time slot), No. 5 subframes (No. 10 time slot and No. 11 time slot), No. 6 subframes (No. 12 time slot and No. 13 time slot), and No. 8 subframes (No. 16 time slot and No. 17 time slot).

It can be understood that the TDD time domain resource configuration information of the first base station 102 may also be sent to the terminal 101 by the second base station 103, for example, the first base station 102 is a secondary base station, and it may send the TDD time domain resource configuration information to the terminal 101 through the second base station 103 (a primary base station); alternatively, the first base station 102 is a master base station, and may send TDD time domain resource configuration information to the terminal 101 through the second base station 103 (secondary base station). When transmitted by the second base station 103, the first base station 102 in S103 may be replaced with the second base station 103. In this case, the TDD time domain resource configuration information of the first base station 102 that is included in the second base station 103 may be sent by the first base station 102 to the second base station 103, or sent by the core network to the second base station 103, which is not limited in this embodiment of the present application.

Of course, it can be understood that in LTE, if the terminal 101 itself has the time division multiplexing configuration shown in table 1, the time division multiplexing configuration information and the time domain resource configuration information sent by the first base station 102 or the second base station 103 may be an index corresponding to a certain configuration. Of course, if the terminal 101 itself has the time domain resource configuration and the time division multiplexing configuration, steps S101 and S103 may be omitted.

S104, the terminal 101 obtains TDD time domain resource configuration information of the first base station 102.

Likewise, the terminal 101 may receive TDD time domain resource configuration information from the first base station 102 or the second base station 103. It is understood that S104 may be omitted if the terminal itself has TDD time domain resource configuration information therein.

S105, the terminal 101 determines FDD uplink time domain resources, wherein the FDD uplink time domain resources include part or all of TDD non-uplink time domain resources.

For example, as shown in fig. 6b, the TDD non-uplink time domain resource includes: subframe No. 0 (slot No. 0 and slot No. 1), subframe No. 1 (slot No. 2 and slot No. 3), subframe No. 3 (slot No. 6 and slot No. 7), subframe No. 5 (slot No. 10 and slot No. 11), subframe No. 6 (slot No. 12 and slot No. 13), and subframe No. 8 (slot No. 16 and slot No. 17), then the FDD uplink time domain resource includes: part or all of the time domain resources in the subframe No. 0 (slot No. 0 and slot No. 1), the subframe No. 1 (slot No. 2 and slot No. 3), the subframe No. 3 (slot No. 6 and slot No. 7), the subframe No. 5 (slot No. 10 and slot No. 11), the subframe No. 6 (slot No. 12 and slot No. 13), and the subframe No. 8 (slot No. 16 and slot No. 17).

In the embodiment of the present application, in order to enable the terminal 101 to communicate with the eNB and the gNB, the power is less than or equal to 23 dBm. When intersection exists between all or part of time domain resources corresponding to a 'D/S' subframe in the TDM-Pattern Config and all or part of time domain resources corresponding to an uplink time slot or a flexible time slot in TDD time domain resource configuration information, even if the part of time domain resources corresponding to the 'D/S' subframe is in an idle state, the terminal does not send uplink transmission to the eNB on the part of time domain resources corresponding to the 'D/S' subframe. As shown in fig. 6b or fig. 8, the time domain resource corresponding to the timeslot 7 is a part of the total time domain resources corresponding to the subframe No. 3, and although the terminal 101 may transmit uplink transmission to the gNB on the time domain resource corresponding to the timeslot 7, in order to avoid the power of the terminal 101 exceeding 23dBm, the terminal 101 performs uplink transmission only with the gNB on the subframe No. 3.

S106, the terminal 101 performs uplink transmission with the second base station 103 on the FDD uplink time domain resource.

For example, the terminal 101 may perform uplink transmission with the second base station 103 on part or all of the time domain resources in the subframe No. 0 (slot No. 0 and slot No. 1), the subframe No. 1 (slot No. 2 and slot No. 3), the subframe No. 3 (slot No. 6 and slot No. 7), the subframe No. 5 (slot No. 10 and slot No. 11), the subframe No. 6 (slot No. 12 and slot No. 13), and the subframe No. 8 (slot No. 16 and slot No. 17) as shown in fig. 6 b.

S107, the second base station 103 receives the uplink transmission of the terminal 101 on the FDD uplink time domain resource.

In this embodiment of the present application, before the second base station 103 and the terminal 101 perform uplink transmission, the terminal 101 and the second base station 103 may negotiate in advance, that is, the terminal 101 may perform uplink transmission using TDD non-uplink time domain resources, so that the second base station 103 may also determine the TDD non-uplink time domain resources according to the time division multiplexing configuration information and the TDD time domain resource configuration information, so that the second base station 103 determines that the uplink transmission of the terminal 101 may be received on the TDD non-uplink time domain resources.

As a possible implementation manner, before S107, the method provided in the embodiment of the present application further includes: the second base station 103 determines FDD uplink time domain resources.

For an example, the second base station 103 may determine the FDD uplink time domain resource in the following manner, and the second base station 103 determines, according to the obtained TDD time domain resource configuration information and the time division multiplexing configuration information, a part or all of the TDD non-uplink time domain resource as the FDD uplink time domain resource. The specific determination process may refer to a process in which the terminal 101 determines the FDD uplink time domain resource. And will not be described in detail herein.

For another example, after the first base station 102 determines the TDD non-uplink time domain resource, the determined TDD non-uplink time domain resource is sent to the second base station 103 through an interface with the second base station 103.

In addition, no matter which way the second base station 103 determines the FDD uplink time domain resource, the second base station 103 may also determine the FDD time domain resource indicated in the time division multiplexing configuration information as the FDD uplink time domain resource. The manner in which the first base station 102 determines the TDD non-uplink time domain resource may refer to a process in which the terminal 101 determines the FDD uplink time domain resource. And will not be described in detail herein.

For another example, after determining the TDD non-uplink time domain resource, the terminal 101 sends the determined TDD non-uplink time domain resource to the second base station 103 through an air interface.

As another embodiment of the present application, the TDD time domain resource configuration information is further used to indicate a TDD uplink time domain resource, where the TDD uplink time domain resource is an uplink time domain resource in the TDD time domain resources. As shown in fig. 9, the method provided in the embodiment of the present application further includes:

s108, the terminal 101 performs uplink transmission with the first base station 102 on the TDD uplink time domain resource.

It can be understood that, in the embodiment of the present application, the TDD time domain resource configuration information may be used to indicate one or more of an uplink time domain resource, a downlink time domain resource, and a flexible time domain resource in the TDD time domain resource, and the terminal determines the time domain resource obtained by intersecting the uplink time domain resource and the TDD time domain resource as the TDD uplink time domain resource.

For example, as shown in fig. 6b, the TDD uplink time domain resource includes: time slot 8, time slot 9, time slot 18, and time slot 19 correspond to all or part of the time domain resources.

For example, as shown in fig. 8, the TDD uplink time domain resource includes: and all or part of time domain resources corresponding to the time slot 2, the time slot 3, the time slot 6, the time slot 7, the time slot 8, the time slot 9, the time slot 12, the time slot 13, the time slot 17, the time slot 18 and the time slot 19.

It should be noted that, in the embodiment of the present application, an intersection of the uplink time domain resource indicated by the TDD time domain resource configuration information and the TDD time domain resource indicated by the time division multiplexing configuration information may be used as the TDD uplink time domain resource. That is, even if the TDD time domain resource configuration information indicates an uplink time domain resource, all or a part of the time domain resource corresponding to the uplink time domain resource is not within the TDD time domain resource range indicated by the time division multiplexing configuration information, and the terminal may not use the uplink time domain resource for uplink transmission. Or, even if a time domain resource belongs to the TDD time domain resource indicated by the time division multiplexing configuration information, but the time domain resource does not belong to the uplink time domain resource indicated by the TDD time domain resource configuration information, the time domain resource cannot be used for uplink transmission.

Fig. 8 shows the slot pattern indicated by the TDD time domain resource allocation information as: DSUUDSUUU, the time division multiplexing configuration pattern of the total time domain resource indicated by the time division multiplexing configuration information is as follows: DSUDDDSIDD is an example. It can be seen from fig. 8 that the TDD time domain resources include: subframe No. 0, subframe No. 1, subframe No. 3, subframe No. 4, subframe No. 5, subframe No. 6, subframe No. 8, and subframe No. 9. And the time slot 4 indicated by the TDD time domain resource configuration information is an uplink time slot, but there is no intersection between the time slot 4 and the TDD time domain resource, and the time slot 4 does not belong to the TDD time domain resource, so that the terminal 101 may not perform uplink transmission to the first base station 102 on the time slot 4.

For another example, as shown in fig. 8, the uplink time domain resource indicated by the TDD time domain resource configuration information includes all or part of the time domain resource corresponding to the time slot 4, but all or part of the time domain resource corresponding to the time slot 4 is not within the range of the TDD time domain resource, so all or part of the time domain resource corresponding to the time slot 4 may not be uplink transmitted.

For another example, as shown in fig. 6b, the TDD time domain resources indicated in the time division multiplexing configuration information include: all or part of the time domain resources corresponding to the subframe No. 0 and the subframe No. 1, but all or part of the time domain resources corresponding to the time slot 0 and the time slot 7 indicated by the TDD time domain resource configuration information are downlink time domain resources, that is, all or part of the time domain resources corresponding to the time slot 0 and the time slot 7 do not belong to the uplink time domain resources indicated by the TDD time domain resource configuration information, and therefore, the terminal may not perform uplink transmission to the first base station on all or part of the time domain resources corresponding to the time slot 0 and the time slot 7.

S109, the first base station 102 receives the uplink transmission of the terminal 101 on the TDD uplink time domain resource.

For example, as shown in fig. 6b, the TDD uplink time domain resource includes: all or part of the time domain resources corresponding to the time slot 8, the time slot 9, the time slot 18, and the time slot 19, and when the terminal 101 performs uplink transmission on all or part of the time domain resources corresponding to the time slot 8, the time slot 9, the time slot 18, and the time slot 19, the first base station 102 may receive uplink transmission on the corresponding time domain resources.

In a first possible implementation manner, S108 may specifically be implemented by: the terminal 101 transmits uplink data to the first base station 102 on the TDD uplink time domain resource. Accordingly, S109 may be specifically implemented by: the first base station 102 receives uplink data sent by the terminal 101 on the TDD uplink time domain resource.

In a second possible implementation manner, S108 may specifically be implemented by: the terminal 101 sends second indication information to the first base station 102 on the TDD uplink time domain resource, where the second indication information is used to indicate whether to correctly receive downlink data sent by the first base station 102. S109 may specifically be implemented by: the first base station 102 receives the second indication information sent by the terminal 101 on the TDD uplink time domain resource.

For example, the second indication information may be HARQ feedback.

In a third possible implementation manner, S108 may specifically be implemented by: the terminal 101 transmits uplink data and second indication information on the TDD uplink time domain resource. S109 may specifically be implemented by: the first base station 102 receives the second indication information and the uplink data sent by the terminal 101 on the TDD uplink time domain resource. That is, the terminal 101 may utilize a part of the time domain resources in the TDD uplink time domain resources to transmit uplink data, and utilize another part of the time domain resources to transmit the second indication information.

In one possible implementation manner, the time division multiplexing configuration information is used to indicate a total time domain resource and an FDD time domain resource, the total time domain resource includes a TDD time domain resource and an FDD time domain resource, and the TDD time domain resource and the FDD time domain resource are not overlapped in a time domain; in the foregoing implementation manner, the FDD uplink time domain resource in S105 further includes an FDD time domain resource. Therefore, the terminal can not only perform uplink transmission to the second base station on the TDD non-uplink time domain resource, but also perform uplink transmission to the second terminal on the FDD time domain resource. Thereby improving the utilization rate of uplink time domain resources.

For example, as shown in fig. 6b, the FDD time domain resources include: all or part of the time domain resources corresponding to the subframe No. 2 (the time slot No. 4 and the time slot No. 5) and the subframe No. 7 (the time slot No. 14 and the time slot No. 15). That is, the terminal 101 may also perform uplink transmission with the second base station 103 on all or part of the time domain resources corresponding to the subframe No. 2 (the timeslot No. 4 and the timeslot No. 5) and the subframe No. 7 (the timeslot No. 14 and the timeslot No. 15).

In the foregoing implementation manner, S105 may specifically be implemented by: the terminal 101 determines the time domain resources other than the TDD uplink time domain resources in the total time domain resources as FDD uplink time domain resources.

For example, in the methods shown in fig. 6a to fig. 10, when the terminal 101 and the network side negotiate to determine that the time domain resource corresponding to the D/S subframe in the time division multiplexing configuration information is used as the TDD time domain resource, the FDD time domain resource may be the time domain resource corresponding to the U subframe included in the time division multiplexing configuration information.

For another example, in the methods shown in fig. 6a to fig. 10, when the terminal 101 and the network side negotiate to determine that the time domain resource corresponding to the U subframe in the time division multiplexing configuration information is used as the TDD time domain resource, the FDD time domain resource may be an uplink time domain resource corresponding to the D/S subframe included in the time division multiplexing configuration information.

Optionally, in a possible implementation manner, in this embodiment of the present application, the S106 may specifically be implemented in the following manner: the terminal 101 transmits uplink data to the second base station 103 on the FDD uplink time domain resource.

One possible implementation manner, in this embodiment of the present application, the S106 may specifically be implemented by: the terminal 101 transmits uplink data to the second base station 103 on the FDD uplink time domain resource. Accordingly, S107 may be specifically implemented by: the second base station 103 receives the uplink data sent by the terminal 101 on the FDD uplink time domain resource.

In another possible implementation manner, in this embodiment of the present application, the S106 may specifically be implemented in the following manner: the terminal 101 transmits uplink data on the TDD non-uplink time domain resource and the FDD time domain resource. Accordingly, S107 may be specifically implemented by: the second base station 103 receives the uplink data sent by the terminal 101 on the TDD non-uplink time domain resource and the FDD time domain resource.

In another possible implementation manner, in this embodiment of the present application, the S106 may specifically be implemented in the following manner: the terminal 101 sends uplink data on the TDD non-uplink time domain resource, and sends first indication information on the FDD time domain resource, where the first indication information is used to indicate whether to correctly analyze downlink data sent by the second base station.

For example, the first indication information may be HARQ.

Optionally, in this embodiment of the present application, as a possible implementation manner, as shown in fig. 10, the method provided in this embodiment of the present application further includes:

s110, the terminal 101 sends first indication information to the second base station 103 on FDD time domain resources, where the first indication information is used to indicate whether to correctly analyze data sent by the second base station 103.

It should be noted that the FDD time domain resource is a time domain resource configured for the terminal 101 by the network side in the time division multiplexing configuration information and used for uplink transmission.

Illustratively, the first indication information may be (e.g., Hybrid automatic repeat reQuest (HARQ) bundling) feedback.

Wherein, HARQ bundling: performing logical AND (local AND) operation on Acknowledgement Characters (ACK)/Negative Acknowledgements (NACK) corresponding to the same code number (codeword) of a plurality of downlink subframes of the same serving cell, AND finally obtaining ACK/NACK information of 1bit (non-space division multiplexing, using PUCCH format 1a) or 2bit (space division multiplexing, using PUCCH format 1 b).

For example, in combination with table 1, as shown in table 2, table 2 shows subframes that the terminal 101 may use for performing uplink feedback to the second base station 103 in different subframe configurations.

Table 2 subframes available for uplink feedback to a base station

As shown in table 2: the time division multiplexing configuration information is the configuration corresponding to index 0 in table 1, and the terminal 101 may perform uplink feedback to the second base station 103 on part or all of the time domain resources in the subframe No. 2, the subframe No. 3, the subframe No. 4, the subframe No. 7, the subframe No. 8, and the subframe No. 9.

The time division multiplexing configuration information is the configuration corresponding to the index 1 in table 1, and the terminal 101 may perform uplink feedback to the second base station 103 on part or all of the time domain resources in the subframe No. 2, the subframe No. 3, the subframe No. 7, and the subframe No. 8.

The time division multiplexing configuration information is the configuration corresponding to index 2 in table 1, and the terminal 101 may perform uplink feedback to the second base station 103 on part or all of the time domain resources in the subframe No. 2 and the subframe No. 7.

The time division multiplexing configuration information is the configuration corresponding to index 3 in table 1, and the terminal 101 may perform uplink feedback to the second base station 103 on part or all of the time domain resources in the subframe No. 2, the subframe No. 3, and the subframe No. 4. The terminal determines the manner of the subframe of the uplink feedback according to the subframe configuration corresponding to the remaining indexes, which may refer to the above description and is not described herein again.

It should be noted that, the number N corresponding to each subframe number in table 2 is used to indicate that the HARQ feedback is for the downlink data received on the nth downlink subframe before the subframe. For example, in the configuration corresponding to index 0, the number "6, 5" on the subframe No. 2 indicates that the HARQ fed back on the subframe No. 2 may be feedback of downlink data received on the subframe No. 5 and subframe No. 6 before the subframe No. 2.

S111, the second base station 103 receives the indication information sent by the terminal 101 on the FDD time domain resource.

It should be noted that, in this embodiment of the present application, the terminal may use the TDD non-uplink time domain resource to perform uplink transmission to the second base station. The terminal may transmit the indication information to the terminal 101 on the FDD time domain resource.

It can be understood that the terminal 101 needs to receive the scheduling information before sending the uplink transmission to the first base station 102 and the second base station 103, and the terminal 101 can send the uplink transmission to the first base station 102/the second base station 103 based on the scheduling information.

Fig. 11 and fig. 12 respectively use the time division multiplexing configuration information as DSUDDDSUDD, and the time slot in the TDD time domain resource indicated by the TDD time domain resource configuration information includes: DDDDDDDSUU is taken as an example, and an uplink transmission method and a communication method in the embodiment of the present application are introduced. It should be noted that the S slot is a special slot, and may include one or two of a downlink symbol, a flexible symbol, and an uplink symbol, when the S slot includes an uplink symbol, the S slot may be used for uplink transmission between the terminal 101 and the first base station 102, for example, the uplink symbol in the S slot may be used for uplink transmission between the terminal 101 and the first base station 102. Here, it is described by taking an example that the S slot includes at least one uplink symbol, and optionally, the S slot may further include a downlink symbol or a flexible symbol.

The time division multiplexing configuration information configured by the gbb or eNB as the terminal is the time division multiplexing subframe configuration indicated by index 2 in table 1. The TDD time domain resources for the terminal to communicate with the gNB include: and part or all of the time domain resources in the 0 subframe, the 1 subframe, the 3 subframe, the 4 subframe, the 5 subframe, the 6 subframe, the 8 subframe and the 9 subframe. As shown in fig. 11.

The time slot in the TDD time domain resource indicated by the TDD time domain resource configuration information configured by the gbb or the eNB for the terminal includes: DDDDDDDSUU. As shown in fig. 12, the TDD non-uplink time domain resource includes: and part or all of the time domain resources in the subframe 0, the subframe 1, the subframe 5 and the subframe 6.

The manner in which the gNB or eNB configures the TDD time domain resource configuration information for the terminal may refer to the description in the foregoing embodiments, and is not described herein again.

That is, when the terminal receives the scheduling information sent by the eNB, the terminal may perform uplink transmission to the eNB on part or all of the time domain resources in subframe 0, subframe 1, subframe 2, subframe 5, subframe 6, and subframe 7. When the terminal receives the scheduling information sent by the gNB, the terminal sends uplink transmission to the gNB on some or all of the time domain resources in time slot 7, time slot 8, time slot 9, time slot 17, time slot 18, and time slot 19 shown in fig. 12. The

specific time slots

7 and 17 may be special time slots, and the

time slots

7 and 17 include at least one uplink symbol. Optionally, the time slot 7 and the time slot 17 further include: at least one downlink symbol and a flexible symbol. The terminal thus performs uplink transmission in the uplink symbols in slot 7 and slot 17.

For example, when the terminal receives downlink data transmitted by the eNB, the terminal may transmit HARQ to the eNB on a part of or all of time domain resources corresponding to the subframe No. 2 and the subframe No. 7 as shown in fig. 12.

The above-mentioned scheme of the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is to be understood that each network element, for example, the uplink transmission device, the communication device, etc., includes a corresponding hardware structure and/or software module for performing each function in order to implement the above functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the uplink transmission device and the communication device may be exemplified according to the above method to divide the functional units, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

The method of the embodiment of the present application is described above with reference to fig. 7 to 12, and the uplink transmission device and the communication device that execute the method provided by the embodiment of the present application are described below. Those skilled in the art will understand that the method and the apparatus may be combined and referred to each other, the communication apparatus provided in the embodiments of the present application may perform the above communication method, that is, the steps performed by the second base station, and the uplink transmission apparatus may perform the uplink transmission method in the above embodiments, that is, the steps performed by the terminal.

In one possible implementation, for example, the method performed by the second base station in the embodiment of the present application, the second base station may perform the structure shown in fig. 4, where the actions of the second base station for transmitting or receiving may be performed by the processor 1111 of the base station shown in fig. 4 through the antenna 1115, and the actions of the second base station for determining or processing may be performed by the processor 1111 of the base station shown in fig. 4. For example, processor 1111 of the base station may transmit time division multiplexing configuration information to the terminal through antenna 1115. For example, the processor 1111 receives an uplink transmission of the terminal on the FDD uplink time domain resource through a receiver in the transceiver.

Another possible implementation manner, for example, the method executed by the first base station in this embodiment of the application, the first base station may execute the structure shown in fig. 4, where the actions of transmitting or receiving by the first base station may be performed by the base station processor 1111 shown in fig. 4 through the antenna 1115, and the actions of determining or processing by the first base station may be performed by the processor 1111 shown in fig. 4. For example, the processor 1111 of the base station may transmit TDD time domain configuration information to the terminal through the antenna 1115. For example, the processor 1111 receives an uplink transmission of the terminal on the TDD uplink time domain resource through a receiver in the transceiver.

In one possible implementation manner, for example, the method executed by the terminal in the embodiment of the present application, the terminal may execute the structure shown in fig. 5, where the actions of transmitting or receiving by the terminal may be performed by the processor 1211 of the terminal through the antenna 1216, and the actions of determining or processing by the terminal may be performed by the processor 1211 of the terminal. For example, the processor 1211 of the terminal may receive, from the second base station through the antenna 1216, time division multiplexing configuration information transmitted by the second base station, and TDD time domain resource configuration information of the first base station. Processor 1211 of the terminal may support the terminal to determine an FDD uplink time domain resource, where the FDD uplink time domain resource includes a part or all of a TDD non-uplink time domain resource. For example, the processor 1211 of the terminal may perform uplink transmission with the second base station through the antenna 1216 on the FDD uplink time domain resource. For example, the processor 1211 of the terminal transmits uplink data to the second base station through the antenna 1216 on the FDD uplink time domain resource. For example, the processor 1211 of the terminal transmits uplink data to the second base station through the antenna 1216 on the TDD non-uplink time domain resource and the FDD time domain resource. For example, the processor 1211 of the terminal transmits uplink data to the second base station on the TDD non-uplink time domain resource and is configured to transmit HARQ to the second base station through the antenna 1216 on the FDD time domain resource. For another example, the processor 1211 of the terminal may perform uplink transmission with the first base station on the TDD uplink time domain resource through the antenna 1216. For example, the processor 1211 of the terminal may transmit indication information to the second base station on the FDD time domain resource through the antenna 1216, the indication information indicating whether data transmitted by the second base station is correctly parsed.

In addition, in the embodiment of the present application, each step in the method performed by the base station, a unit or a module for performing each step in the method exists in the base station; each step in the method performed by the terminal, there being a unit or module in the terminal that performs each step in the method; each step of the method is performed by a terminal in which there are units or modules performing each step of the method.

The following description will be given by taking the division of each function module corresponding to each function as an example:

as shown in fig. 13, fig. 13 is a schematic structural diagram of a communication device 2000 provided in this embodiment, where the communication device 2000 may be a second base station/a first base station in this embodiment, and may also be a chip applied to the second base station/the first base station. A schematic diagram of the second base station/first base station may be as shown in fig. 4.

An example, the communication device 2000 includes: a transmitting unit 2001 and a receiving unit 2002. Optionally, the communication apparatus 2000 may further include: a storage unit 2003. The transmitting unit 2001, the receiving unit 2002, and the storage unit 2003 are connected by a communication bus.

The storage unit 2003 may include one or more memories, which may be devices in one or more devices or circuits for storing programs or data.

The transmitting unit 2001 and the receiving unit 2002 may be collectively referred to as a device having a transmitting/receiving function.

The storage unit 2003 may be separately provided and connected to the processing unit provided in the communication apparatus 2000 through a communication bus. The storage unit 2003 may also be integrated with the processing unit.

The communication apparatus 2000 may be used in a communication device, circuit, hardware component, or chip.

The transmitting unit 2001 and the receiving unit 2002 may include an antenna and a transceiver of the second base station, such as the antenna 1115 and the transceiver 1113 in fig. 4, among others. The sending unit 2001, receiving unit 2002 may further comprise a network interface of the second base station, e.g. network interface 1114 in fig. 4.

The communication device 2000 may be a chip in the second base station/the first base station in the embodiment of the present application. The transmitting unit 2001, receiving unit 2002 may be an input or output interface, a pin, a circuit, or the like. Alternatively, the storage unit 2003 may store computer-executable instructions of the method of the second base station/first base station side to cause the processing unit to execute the method of the second base station/first base station side in the above-described embodiment. The storage unit 2003 may be a register, a cache, a RAM, or the like, and the storage unit 2003 may be integrated with the processing unit; the storage unit 2003 may be a ROM or other type of static storage device that may store static information and instructions, and the storage unit 2003 may be separate from the processing unit. Alternatively, as wireless communication technology advances, a transceiver may be integrated with the communication apparatus 2000, for example, the transmitting unit 2001 and the receiving unit 2002 are integrated with the transceiver 1113 and the network interface 1114.

When the communication apparatus 2000 is a chip in the second base station/the first base station in the embodiment of the present application, the method performed by the second base station/the first base station in the above-described embodiment may be implemented.

In a possible implementation manner, when the communication apparatus 2000 is the second base station or a chip in the second base station, the sending unit 2001 may support the communication apparatus 2000 to execute S101 in the above embodiment. The receiving unit 2002 is configured to support the communication apparatus 2000 to implement S107 and S111 in the above embodiment.

In another possible implementation manner, when the communication apparatus 2000 is the first base station or a chip applied to the first base station, the transmitting unit 2001 may support the communication apparatus 2000 to execute S103 in the above embodiment. A receiving unit 2002 for supporting the communication apparatus 2000 to implement S109 in the above embodiment.

As shown in fig. 14, fig. 14 provides an uplink transmission device 1000 according to an embodiment of the present application, where the uplink transmission device 1000 may perform the processes performed by the terminal in the foregoing embodiments, and the uplink transmission device 1000 includes a receiving unit 1001, a processing unit 1002, and a sending unit 1003.

Optionally, the uplink transmission device 1000 further includes a storage unit 1004. The receiving unit 1001, the processing unit 1002, the transmitting unit 1003, and the storage unit 1004 are connected by a communication bus.

The receiving unit 1001 and the transmitting unit 1003 may be devices having a transceiving function, and are used for communicating with other base stations or a communication network.

The storage unit 1004 may include one or more memories, which may be devices in one or more devices or circuits for storing programs or data.

The storage unit 1004 may be independent and connected to the processing unit of the communication apparatus via a communication bus. The memory unit 1004 may also be integrated with the processing unit.

The uplink transmission means 1000 may be used in a communication device, circuit, hardware component or chip.

The uplink transmission apparatus 1000 may be a terminal in this embodiment. A schematic diagram of a terminal may be as shown in fig. 5. Alternatively, the receiving unit 1001 and the transmitting unit 1003 of the uplink transmission device 1000 may include an antenna and a transceiver of a terminal, for example, the antenna 1216 and the transceiver 1212 in fig. 5. Optionally, the transmitting unit 1003 and the receiving unit 1001 may further include an output device and an input device, for example, the output device 1214 and the input device 1215 in fig. 5.

The uplink transmission apparatus 1000 may be a chip in the terminal in the embodiment of the present application, for example, a chip in the terminal. The transmitting unit 1003 and the receiving unit 1001 may be input or output interfaces, pins, circuits, or the like. The processing unit 1002 may be a processor.

Optionally, when the uplink transmission device 1000 may be a chip in a terminal in the embodiment of the present application, the uplink transmission device may further include: a memory, the storage unit 1004 may correspond to the memory. The memory is used for storing computer-executable instructions for the method at the terminal side to cause the processing unit 1002 to execute the method at the terminal in the above-described embodiments. The storage unit 1004 may be a register, a cache, a RAM, or the like, and the storage unit 1004 may be integrated with the processing unit 1002; the storage unit 1004 may be a ROM or other type of static storage device that may store static information and instructions, and the storage unit 1004 may be separate from the processing unit 1002. Alternatively, as wireless communication technology develops, a transceiver may be integrated on the uplink transmission device 1000, for example, the transmitting unit 1003 and the receiving unit 1001 are integrated with the transceiver 1212.

When the uplink transmission apparatus 1000 is a chip in the terminal in the embodiment of the present application, the uplink transmission apparatus 1000 may implement the method executed by the terminal in the embodiment described above. For example, the receiving unit 1001 is configured to support the uplink transmitting device 1000 to execute S102 and S104 in the foregoing embodiment. The processing unit 1002 is configured to support the uplink transmission device 1000 to execute S105 in the foregoing embodiment. The sending unit 1003 is configured to support the uplink transmission device 1000 to perform S106, S108, and S110 in the foregoing embodiment. Other contents may refer to the related contents in fig. 7 to 12.

The embodiment of the present application provides a communication device and an uplink transmission device, where the communication device and the uplink transmission device include one or more modules, which are used to implement the methods in S101 to S111, and the one or more modules may correspond to the steps of the methods in S101 to S111. Specifically, in the embodiment of the present application, each step in the method executed by the terminal, a unit or a module for executing each step in the method exists in the terminal; each step of the method is performed by the second base station/the first base station, in which there are units or modules performing each step of the method.

For example, in the case of using an integrated unit, fig. 15 shows a schematic diagram of a possible logical structure of the uplink transmission device in the foregoing embodiment, where the uplink transmission device may be a terminal in the foregoing embodiment or a chip applied in the terminal. The uplink transmission device includes: a processing module 412 and a communication module 413. The processing module 412 is used for controlling and managing the operation of the uplink transmission device, and the communication module 413 is used for executing the steps of processing messages or data on the uplink transmission device side.

For example, the communication module 413 is configured to support the uplink transmission device to perform S102, S104, S106, S108, and S110 in the foregoing embodiment. The processing module 412 is configured to support the uplink transmission device to execute S105 in the foregoing embodiment. And/or other processes performed by an upstream transmitting device for use with the techniques described herein.

Optionally, the uplink transmission apparatus may further include a storage module 411, configured to store program codes and data of the uplink transmission apparatus.

The processing module 412 may be a processor or controller, such as a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a digital signal processor, a combination of microprocessors, and the like. The communication module 413 may be a communication interface, a transceiver, a transceiving circuit or an interface circuit, etc. The storage module 411 may be a memory.

When the processing module 412 is a processor, the communication module 413 is a transceiver, and the storage module 411 is a memory, the uplink transmission apparatus according to the present application may be the device shown in fig. 5.

In the case of using integrated units in S101-S111, fig. 16 shows a schematic diagram of a possible logical structure of the communication device in the above embodiment, where the communication device may be the first base station or the second base station in the above embodiment, or a chip applied to the first base station or the second base station. The communication device includes: a processing module 512 and a communication module 513. The processing module 512 is used for controlling and managing the operation of the communication device, and the communication module 513 is used for executing the steps of processing messages or data on the communication device side.

For example, on the one hand, when the communication device is the first base station or a chip in the first base station, the communication module 513 is configured to support the communication device to perform S103 and S109 in the foregoing embodiment. And/or other processes performed by a communication device for the techniques described herein.

Optionally, the communication device may further comprise a storage module 511 for storing program codes and data of the communication device.

The processing module 512 may be a processor or controller, such as a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a digital signal processor, a combination of microprocessors, and the like. The communication module 513 may be a communication interface, a transceiver, a transceiving circuit or an interface circuit, etc. The storage module 511 may be a memory.

When the processing module 512 is a processor, the communication module 513 is a transceiver, and the storage module 511 is a memory, the communication device according to the present application may be the apparatus shown in fig. 4.

The embodiment of the application also provides a computer readable storage medium. The methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media may include computer storage media and communication media, and may include any medium that can communicate a computer program from one place to another. A storage medium may be any target medium that can be accessed by a computer.

As an alternative design, a computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that is targeted for carriage or stores desired program code in the form of instructions or data structures and that is accessible by a computer. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

The embodiment of the application also provides a computer program product. The methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in the above method embodiments are generated in whole or in part when the above computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a computer network, a base station, a terminal, or other programmable device.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.

Claims

1. An uplink transmission method, wherein the terminal performs dual connectivity with a first base station and a second base station, the terminal communicates with the first base station through Time Division Duplex (TDD), and the terminal communicates with the second base station through Frequency Division Duplex (FDD), the method comprising:

the terminal acquires time division multiplexing configuration information, wherein the time division multiplexing configuration information is used for indicating TDD time domain resources of the terminal and the first base station for communication;

the terminal acquires TDD time domain resource configuration information of the first base station, wherein the TDD time domain resource configuration information is used for indicating a TDD non-uplink time domain resource, and the TDD non-uplink time domain resource is a time domain resource in the TDD time domain resource;

the terminal determines FDD uplink time domain resources, wherein the FDD uplink time domain resources comprise part or all of the TDD non-uplink time domain resources;

and the terminal performs uplink transmission with the second base station on the FDD uplink time domain resource.

2. The uplink transmission method according to claim 1, wherein the TDD time domain resource configuration information is further used to indicate a TDD uplink time domain resource, and the TDD uplink time domain resource is an uplink time domain resource in the TDD time domain resource;

and the terminal carries out uplink transmission with the first base station on the TDD uplink time domain resource.

3. The uplink transmission method according to claim 1 or 2, wherein the time division multiplexing configuration information is used to indicate total time domain resources and FDD time domain resources, the total time domain resources include the TDD time domain resources and the FDD time domain resources, and the TDD time domain resources and the FDD time domain resources are not overlapped in time domain;

the FDD uplink time domain resources further comprise the FDD time domain resources.

4. The uplink transmission method according to any of claims 1-3, wherein the terminal performs uplink transmission with the second base station on the FDD uplink time domain resource, comprising: and the terminal performs uplink data transmission with the second base station on the TDD non-uplink time domain resource.

5. The uplink transmission method according to claim 3, wherein the terminal performs uplink transmission with the second base station on the FDD uplink time domain resource, comprising: and the terminal performs uplink data transmission with the second base station on part or all of the time domain resources in the TDD non-uplink time domain resources, and performs hybrid automatic repeat request (HARQ) feedback on the FDD time domain resources.

6. The uplink transmission method according to claim 3, wherein the terminal determines the FDD uplink time domain resource, comprising:

and the terminal determines the time domain resources except the TDD uplink time domain resources in the total time domain resources as the FDD uplink time domain resources.

7. The method of any of claims 1-6, wherein the TDD non-uplink time domain resource is one or both of a downlink time domain resource in the TDD time domain resources and a flexible time domain resource in the TDD time domain resources.

8. A communications device, characterized by a processor coupled to a memory for storing a computer program or instructions, the processor being configured to execute the computer program or instructions in the memory, such that the communications device performs a method of upstream transmission according to any of claims 1 to 7.

9. A chip comprising a processor and interface circuitry, the interface circuitry being coupled to the processor, the processor being configured to run a computer program or instructions to implement a method of upstream transmission as claimed in any one of claims 1 to 7, the interface circuitry being configured to communicate with modules other than the chip.

10. A chip according to claim 9, characterized in that it further comprises: a memory for storing the computer program or instructions.

11. A computer readable storage medium storing a computer program or instructions which, when executed, cause the computer to perform a method of upstream transmission according to any one of claims 1 to 7.