WO2021031978A1

WO2021031978A1 - Signal transmission method and signal transmission apparatus

Info

Publication number: WO2021031978A1
Application number: PCT/CN2020/108945
Authority: WO
Inventors: 谢信乾; 郭志恒; 龙毅
Original assignee: 华为技术有限公司
Priority date: 2019-08-16
Filing date: 2020-08-13
Publication date: 2021-02-25
Also published as: CN112399619A

Abstract

The signal transmission method provided in the present application comprises: receiving first indication information from a first network device, wherein the first indication information indicates the use of a first modulation and coding scheme (MCS) within a first time period on a first uplink carrier; and when a time interval between an end moment of the first time period and a start moment of a second time period is less than a first time length, or when a time interval between a start moment of the first time period and an end moment of the second time period is less than the first time length, using, according to the first indication information, a second MCS within the first time period on the first uplink carrier to transmit a first uplink signal, wherein the first MCS is different from the second MCS, and the second time period is a time period within which a second uplink signal is transmitted on a second uplink carrier. The signal transmission method and the signal transmission apparatus provided in the present application can improve the communication efficiency.

Description

Signal sending method and signal sending device

This application claims the priority of the Chinese patent application filed on August 16, 2019 with the application number 201910760906.6 and the application name "signal sending method and signal sending device", the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the communication field, and more specifically, to a signal transmission method and a signal transmission device in the communication field.

Background technique

With the continuous development of wireless communication systems, terminal devices support simultaneous access to different network devices, such as long term evolution (LTE) systems and (5G) new radio interface (NR) networks. The access method is called evolved universal terrestrial radio access and new air interface dual connectivity (evolved universal terrestrial radio access NR dual connectivity, EN-DC).

The typical transmitting antenna architecture of terminal equipment supporting EN-DC is an NR antenna and a shared antenna. The NR antenna is used exclusively for NR uplink transmission. The shared antenna can be switched to meet the uplink transmission requirements of NR or LTE at different times. .

However, when the terminal device adopting the above-mentioned antenna architecture communicates with the network device in a dual-connection manner, there is a problem that the communication efficiency needs to be improved.

Summary of the invention

The signal sending method and signal sending device provided in the present application can improve communication efficiency.

In the first aspect, this application provides a signal sending method, the method including:

Receiving first indication information from the first network device, where the first indication information indicates that the first modulation and coding mode MCS is adopted in the first time period on the first uplink carrier;

In the case where the time interval between the end time of the first time period and the start time of the second time period is less than the first time period, or between the start time of the first time period and the second time period If the time interval between the end moments of is less than the first time length, according to the first indication information, the second MCS is used to send the first uplink signal in the first time period on the first uplink carrier , Wherein the first MCS and the second MCS are different, and the second time period is a time period for sending a second uplink signal on a second uplink carrier.

The above-mentioned method in the first aspect may be executed by a terminal device, or may be executed by a chip in the terminal device, such as a baseband processing chip.

Since LTE and NR work on carriers in different frequency bands, there is a switching time when the shared antenna switches between the LTE frequency and the NR frequency. However, the time interval between the end time of the first time period on the scheduled LTE uplink carrier of the terminal equipment and the start time of the second time period of the scheduled NR uplink carrier is less than the shared antenna is switched from the LTE uplink carrier to In the case of the switching duration required for the NR uplink carrier, the shared antenna has not yet completed the switching from the LTE network to the NR network. Therefore, the terminal device cannot normally send signals through the two antennas during the time when the switching duration overlaps the second time period.

However, in the prior art, the first MCS indicated by the first indication information is not available in the first time period. Therefore, in the prior art, the terminal device cannot send a signal in the first time period. . After the signal sending method of the first aspect is adopted, since the terminal device can use an MCS different from the first MCS to send signals, the terminal device can send the first uplink signal within the first time period, Therefore, the communication efficiency is improved in the first time period.

In the second aspect, this application provides another signal sending method, which includes:

Receiving first indication information from a network device, where the first indication information indicates that the first MCS is used in a first time period on the first uplink carrier, the first time period includes N consecutive symbols, and The time difference between the start time of the Mth symbol of the N consecutive symbols and the end time of the second time period is less than the first time length, and the time difference between the M+1th symbol of the N consecutive symbols The time difference between the start time and the end time of the second time period is greater than or equal to the first time length, and the second time period is a time period for sending a second uplink signal on a second uplink carrier; and

When the M is less than or equal to K, the first uplink signal is sent to the network device on part of the N consecutive symbols on the first uplink carrier, where the part of the symbols is divided by Symbols outside the first M symbols in the N consecutive symbols, and no signal is sent on the first M symbols;

When the M is greater than the K, use a second MCS on the N consecutive symbols on the first uplink carrier to send the first uplink signal to the network device;

Wherein, the N, M and K are all positive integers.

Since in the prior art, the first MCS indicated by the first indication information is unavailable during the first time period, the terminal device in the prior art cannot send a signal during the first time period . After adopting the signal sending method of the second aspect, the terminal device can send the first uplink signal in the first time period when the M is greater than the K. Therefore, in the first time period, In a period of time, the communication efficiency has been improved.

In some implementations of the first aspect or the second aspect, the method further includes: reporting a transmission capability to the first network device, where the transmission capability includes the number of transmit antennas supported by the terminal device and/or the maximum antenna port (port) number.

The first network device schedules the terminal device according to the maximum number of ports supported by the terminal device, that is, the first network device sends the first indication information to the terminal device according to the sending capability.

In some implementations of the first aspect or the second aspect, the method further includes: receiving second indication information from a second network device, wherein the second indication information indicates the second indication information on the second uplink carrier. Uplink signals are sent during the time period.

That is, the first indication information indicates that the uplink signal is sent in the first time period on the first uplink carrier, and the second indication information indicates that the uplink signal is sent in the second time period on the second uplink carrier.

Optionally, the first indication information may be carried in a variety of different signaling, which is not limited in the embodiment of the present application. For example, the first indication information may be carried in downlink control information (DCI).

Optionally, the second indication information may be carried in a variety of different signaling, which is not limited in the embodiment of the present application. For example, the second indication information may be carried in DCI.

Optionally, that the index corresponding to the first MCS is different from the index corresponding to the second MCS can be understood as: the index corresponding to the first MCS may be greater than the index corresponding to the second MCS, or the index corresponding to the first MCS The index of the MCS may be smaller than the index corresponding to the second MCS, which is not limited in the embodiment of the present application.

In a possible implementation manner, the index corresponding to the first MCS is smaller than the index corresponding to the second MCS.

In some implementation manners of the first aspect or the second aspect, the first indication information further indicates the first layer number, and the second MCS is used in the first time period on the first uplink carrier Sending the first uplink signal includes: using a second MCS and a second layer number to send the first uplink signal in the first time period on the first uplink carrier, wherein the first layer number is greater than The number of the second layer.

The number of layers described in this embodiment may also be referred to as the number of spatial layers.

In other words, since the available transmitting antennas of the terminal equipment on the NR side are reduced from 2 to 1, the maximum number of ports that can be used to transmit uplink signals on the NR side is reduced from 2 to 1. When the number of first layers scheduled is In the case of layer 2, the second layer of the first uplink signal finally sent by the terminal device can only be layer 1, that is, the number of the second layer is smaller than the number of the first layer, so that the terminal device is on the currently available port The transmit power of is maintained, and the transmit power allocated for each symbol to be transmitted remains unchanged. Therefore, the terminal device can increase the MCS under the premise of reducing the number of layers, and can maintain the number of symbols to be transmitted unchanged, thereby maintaining the same throughput.

In a possible implementation manner, the index corresponding to the first MCS is greater than the index corresponding to the second MCS.

In some implementation manners of the first aspect or the second aspect, the first indication information further indicates the first layer number, and the second MCS is used in the first time period on the first uplink carrier Sending the first uplink signal includes: using a second MCS and a second layer number to send the first uplink signal in the first time period on the first uplink carrier, wherein the first layer number is equal to The number of the second layers is equal.

In some implementations of the first aspect or the second aspect, the first indication information further indicates the number of antenna ports, where the number of antenna ports is greater than one, and the first layer number is equal to one.

In other words, since the available transmitting antennas of the terminal equipment on the NR side are reduced from 2 to 1, when the first layer to be scheduled is 1, the second layer is equal to the first layer, that is, the terminal The number of the second layer of the first uplink signal sent by the device is the same as the number of the first layer that is scheduled. In this way, since the number of available transmitting antennas is reduced by half, the transmission power of the terminal device is reduced by half, and each standby The allocated transmit power on the transmission symbol is halved. Therefore, in order not to deteriorate the decoding performance, the terminal device reduces the MCS while maintaining the number of layers unchanged, which can increase the transmit power that can be allocated for each symbol to be transmitted, thereby improving the reliability of transmission.

In some implementation manners of the first aspect or the second aspect, the second MCS is used to send the first uplink signal within the first time period on the first uplink carrier according to the first indication information , Including: determining the second MCS according to the first indication information; and using the second MCS to send a first uplink signal in the first time period on the first uplink carrier.

Optionally, the terminal device may determine the second MCS in multiple ways, which is not limited in the embodiment of the present application.

In some implementation manners of the first or second aspect, the determining the second MCS according to the first indication information includes: according to the first indication information and an index corresponding to the second MCS The difference between the indexes corresponding to the first MCS determines the second MCS.

In some implementations of the first aspect or the second aspect, the difference between the index corresponding to the second MCS and the index corresponding to the first MCS is predefined, or the index corresponding to the second MCS is The difference between the index corresponding to the first MCS is configured through high-layer signaling, or the difference between the index corresponding to the second MCS and the index corresponding to the first MCS is determined according to a predefined rule.

For example, the first network device may send third indication information to the terminal device, the third indication information indicating the difference between the index corresponding to the second MCS and the index corresponding to the first MCS. Correspondingly, the terminal device receives the third indication information from the first network device, and determines the index corresponding to the second MCS and the index corresponding to the first MCS according to the third indication information. Difference.

For another example, the first network device may send fourth indication information to the terminal device, where the fourth indication information indicates that the index corresponding to the second MCS is determined to be the same as the index corresponding to the first MCS according to a predefined first rule. The difference of the corresponding index. Correspondingly, the terminal device receives the fourth indication information from the first network device, and determines the index corresponding to the second MCS and the first rule according to the fourth indication information and the first rule. The difference of the index corresponding to an MCS.

Optionally, the first rule may include: a mapping relationship between an index corresponding to the first MCS and a difference between an index corresponding to the second MCS and an index corresponding to the first MCS.

It should be noted that, when the index corresponding to the MCS determined by the terminal device according to the index corresponding to the first MCS and the difference is greater than the upper limit defined in the MCS table, the terminal device may use the MCS The upper limit value in the table is determined as the index corresponding to the second MCS.

In some implementation manners of the first aspect or the second aspect, the determining the second MCS according to the first indication information includes: the terminal device according to the first indication information and a predefined first Two rules determine the second MCS.

For example, the first network device may send fifth indication information to the terminal device, where the fifth indication information indicates that the index corresponding to the second MCS is determined according to a second predefined rule. Correspondingly, the terminal device receives the fifth indication information from the first network device, and determines the second MCS according to the first indication information, the fifth indication information, and the second rule The corresponding index.

In some implementation manners of the first aspect or the second aspect, the first uplink carrier and the second uplink carrier belong to different cell groups.

In some implementations of the second aspect, the K is predefined, or the K is configured through higher layer signaling, or the K is determined according to a predefined rule.

In the third aspect, this application provides yet another signal sending method, which includes:

Receive first indication information from a first network device, where the first indication information indicates that a first layer number is used in a first time period on the first uplink carrier, and the first time period includes N consecutive symbols ；

Receive second indication information from a second network device, where the second indication information indicates to use the first layer number in a second time period on a second uplink carrier, and the second time period includes M consecutive The symbol; and

The time interval between the start time of the first time period and the end time of the second time period is less than a first time length, and the first time length includes the last of the M consecutive symbols In the case of at least one symbol, when the first layer number is greater than 1, or when the first layer number is equal to 1 and the number of antenna ports corresponding to the first layer number is greater than 1, the second uplink The second uplink signal is sent to the second network device on part of the M consecutive symbols on the carrier, where the part of the M consecutive symbols is in the M consecutive symbols Symbols other than the last at least one symbol, and no signal is sent on the last at least one symbol; and/or,

The time interval between the start time of the first time period and the end time of the second time period is less than a first time length, and the first time length includes the first of the N consecutive symbols In the case of at least one symbol, when the first layer number is greater than 1, or when the first layer number is equal to 1 and the number of antenna ports corresponding to the first layer number is greater than 1, the first uplink The first uplink signal is sent to the first network device on part of the N consecutive symbols on the carrier, where the part of the N consecutive symbols is in the N consecutive symbols Symbols other than the first at least one symbol, and no signal is sent on the first at least one symbol; accordingly, the first network device is in the N consecutive symbols on the first uplink carrier Receiving the first uplink signal sent by the terminal device on some symbols.

In some implementation manners of the third aspect, the method specifically includes: determining whether the symbol occupied by the first time period belongs to the first time period or the second time period; Part of the symbols in the N consecutive symbols on the carrier sends a first uplink signal to the first network device, and/or part of the M consecutive symbols on the second uplink carrier Sending a second uplink signal to the second network device on the symbol.

It should be understood that when the first time length includes the first W symbols in the first time period, that is, the terminal device does not send a signal on the first W symbols, if W is greater than the bit error rate corresponding to the decoding result The maximum allowable number of missing symbols in the transmitted signal under the premise of being less than or equal to the target error rate may affect the normal decoding of the first network device.

Therefore, the signal sending apparatus may disperse part or all of the W symbols that do not send signals on the second network device side, that is, the first time length includes the last A symbols of the second time period and the first B symbols of the first time period. Symbols so that B is less than the maximum allowable number of missing symbols in the transmitted signal under the premise that the error rate corresponding to the decoding result is less than or equal to the target error rate, where A+B=W, and both A and W Is a positive integer, and the B is an integer greater than or equal to 0.

In addition, in the above case, the first network device may usually be scheduled to transmit signals with a higher level of importance for decoding, such as DMRS, on the first W symbols of the first time period.

Therefore, dispersing part or all of the W symbols that do not send signals on the second network device side is beneficial to improve the accuracy of decoding on the first network device side.

In some implementations of the third aspect, when the time interval between the start time of the first time period and the end time of the second time period is less than the first time length, when the first time period When the number of one layer is equal to 1, the terminal device sends a third uplink signal to the first network device on the N consecutive symbols on the first uplink carrier, and on the second uplink carrier Sending a fourth uplink signal to the second network device on the M consecutive symbols.

In a possible implementation manner, the first uplink carrier and the second uplink carrier belong to different cell groups.

In a fourth aspect, this application provides yet another signal sending method, the method including:

Receiving first indication information from the network device, where the first indication information indicates that the first modulation and coding mode MCS is adopted in the first time period on the first uplink carrier; and

In the case that the time interval between the end time of the first time period and the start time of the second time period is less than the first time length, when the first indication information is received at a later time than the second indication information is received , According to the first indication information, according to the first indication information, in the first time period on the first uplink carrier, using a second MCS to send a first uplink signal to the network device , Wherein the second indication information indicates that the second uplink signal is sent in the second time period on the second uplink carrier;

In the case that the time interval between the end time of the first time period and the start time of the second time period is less than the first time length, when the time of receiving the first indication information is earlier than that of receiving the second indication information At the moment, the first uplink signal is sent to the network device on part of the N consecutive symbols included in the first uplink carrier, where the part of the symbols is divided by the N consecutive symbols A symbol outside the first at least one symbol of, and no signal is sent on the first at least one symbol, and the second time period is a time period for sending a second uplink signal on a second uplink carrier.

Optionally, the method specifically includes: determining the sequence of the moment when the first indication information is received and the moment when the second indication information is received; and according to the sequence, determining the first uplink carrier on the first uplink carrier. In a period of time, whether to use the second MCS to send the first uplink signal to the network device, or to send the first uplink signal to the network device on part of the N consecutive symbols included in the first uplink carrier.

That is, if the time of receiving the first indication information is earlier than the time of receiving the second indication information, the signal sending device has sufficient time to use the re-determined MCS to complete the coding. In the first time period, the second MCS is used to send the first uplink signal to the network device; if the time of receiving the first indication information is later than the time of receiving the second indication information, the terminal device does not have sufficient time to use The determined MCS completes coding, and therefore, the first uplink signal is sent to the network device on a part of the N consecutive symbols included in the first uplink carrier.

In a possible implementation manner, the first indication information further indicates the first layer number, and the second MCS is used to send the first uplink signal in the first time period on the first uplink carrier, The method includes: sending the first uplink signal by using a second MCS and a second layer number in the first time period on the first uplink carrier, wherein the first layer number is greater than the second layer number .

In a possible implementation manner, the first indication information further indicates the first layer number, and the second MCS is used to send the first uplink signal in the first time period on the first uplink carrier, The method includes: using a second MCS and a second layer number to send the first uplink signal in the first time period on the first uplink carrier, wherein the first layer number and the second layer number If equal, the index corresponding to the first MCS is greater than the index corresponding to the second MCS.

In a possible implementation manner, the first indication information further indicates the number of antenna ports, where the number of antenna ports is greater than one, and the number of first layers is equal to one.

In a possible implementation manner, the using the second MCS to send the first uplink signal in the first time period on the first uplink carrier according to the first indication information includes: according to the First indication information, determining the second MCS; and using the second MCS to send a first uplink signal in the first time period on the first uplink carrier.

In a possible implementation manner, the determining the second MCS according to the first indication information includes: according to the first indication information and the index corresponding to the second MCS and the first MCS The difference between the corresponding indexes determines the second MCS.

In a possible implementation, the difference between the index corresponding to the second MCS and the index corresponding to the first MCS is predefined, or the index corresponding to the second MCS corresponds to the first MCS The difference between the indexes of is configured through high-level signaling, or the difference between the index corresponding to the second MCS and the index corresponding to the first MCS is determined according to a predefined rule.

In a fifth aspect, the present application provides a signal sending device in a terminal device, which is used to execute the foregoing first aspect or any possible implementation of the first aspect. Specifically, the signal sending device may include a unit for executing the above-mentioned various aspects or the method in any possible implementation manner thereof.

In a sixth aspect, the present application provides a terminal device, the terminal device including: a memory, a processor, a transceiver, and instructions stored in the memory and running on the processor, wherein the memory, the processor And the communication interfaces communicate with each other through an internal connection path, and it is characterized in that the processor executes the instruction to enable the communication device to implement the foregoing aspects or methods in any possible implementation manner.

In a seventh aspect, the present application provides a computer-readable storage medium for storing a computer program. The computer program includes instructions for implementing the above-mentioned aspects or methods in any possible implementation manners.

In an eighth aspect, the present application provides a computer program product containing instructions, which when run on a computer, enables the computer to implement the above-mentioned aspects or methods in any possible implementation manners.

In a ninth aspect, the present application provides a chip device including: an input interface, an output interface, at least one processor, and a memory. The input interface, the output interface, the processor and the memory communicate with each other through an internal connection path, The processor is configured to execute the code in the memory, and when the processor executes the code, the chip device implements the foregoing aspects or the method in any possible implementation manner.

Description of the drawings

FIG. 1 is a schematic diagram of a communication system 100 provided by an embodiment of the present application;

Figure 2 is a schematic diagram of an application scenario provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of a signal sending method 200 provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of a signal sending method 300 provided by an embodiment of the present application;

Figure 5 is a schematic diagram of another application scenario provided by an embodiment of the present application;

FIG. 6 is a schematic flowchart of a signal sending method 400 provided by an embodiment of the present application;

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

FIG. 8 is a schematic diagram of another application scenario provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of another application scenario provided by an embodiment of the present application;

FIG. 10 is a schematic flowchart of a signal sending method 500 provided by an embodiment of the present application;

FIG. 11 is a schematic flowchart of a signal sending device 600 provided by an embodiment of the present application;

FIG. 12 is a schematic flowchart of a signal sending apparatus 700 provided by an embodiment of the present application;

FIG. 13 is a schematic flowchart of a signal sending device 800 provided by an embodiment of the present application;

FIG. 14 is a schematic flowchart of a signal sending device 900 provided by an embodiment of the present application;

FIG. 15 is a schematic flowchart of a terminal device 1000 according to an embodiment of the present application;

FIG. 16 is a schematic flowchart of a terminal device 1100 according to an embodiment of the present application;

FIG. 17 is a schematic flowchart of a terminal device 1200 according to an embodiment of the present application;

FIG. 18 is a schematic flowchart of a terminal device 1300 provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

First, for clarity, some terms in the embodiments of the present application are explained.

1. Terminal equipment

The terminal device can be mobile or fixed. The terminal equipment may refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment, user agent Or user device, etc.

The terminal device in the embodiment of the application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal device , Wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety (transportation) Wireless terminals in safety), wireless terminals in smart cities, and wireless terminals in smart homes. In the embodiments of the present application, the aforementioned terminal equipment and the chips that can be installed in the aforementioned terminal equipment are collectively referred to as terminal equipment.

2. Network equipment

The network device can provide communication coverage for a specific geographic area, and can communicate with terminal devices located in the coverage area.

The network equipment in the embodiments of this application may be a base transceiver station (BTS) in a global system of mobile communication (GSM) system or a code division multiple access (Code Division Multiple Access, CDMA) system, or It is a base station (nodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station (evolved node B, eNB or eNB) in a long term evolution (LTE) system. eNodeB), or a radio controller in a cloud radio access network (CRAN). The network device can also be a core network, a relay station, an access point, a vehicle-mounted device, a wearable device, the network side device in the future 5th Generation (5G) system or the New Radio (NR) system, Or network equipment in the future evolution of the public land mobile network (PLMN).

It should be noted that the "system" and "network" mentioned above can be used interchangeably.

It should also be noted that, unless otherwise specified, the ordinal numbers such as “first” and “second” in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, or sequence of multiple objects. Priority or importance, etc.

3. Dual connection (multiple radio access technology dual connectivity, MR-DC) communication system

A dual-connection communication system refers to a communication system that supports the simultaneous deployment of two radio access technologies (RAT), that is, two network devices supporting different wireless access technologies are deployed in a dual-connection communication system. Similarly, dual The terminal equipment in the connection communication system supports simultaneous access to these two different network equipment.

For example, in a dual-connection communication system, NR network equipment and LTE network equipment can be deployed at the same time, and the terminal equipment supports simultaneous access to LTE network equipment and NR network equipment. This access method is called evolved universal land wireless access. Enter (evolved universal terrestrial radio access, E-UTRA) and NR dual connectivity (E-UTRA NR dual connectivity, EN-DC).

Further, NR network equipment and LTE network equipment may also be integrated into one network equipment.

FIG. 1 shows a schematic architecture diagram of a communication system 100 provided by an embodiment of the present application. As shown in FIG. 1, the communication system 100 may include one or more network devices (the network device 110 and the network device 120 are shown in FIG. 1) and at least one terminal device (the terminal device 130 is shown in FIG. 1). Further, the network device 110 and the network device 120 may be integrated in one network device.

In the communication system 100, the network device 110 supports the first radio access technology, for example, LTE, and the network device 120 supports the second radio access technology, for example, NR. When these two radio access technologies are deployed simultaneously In this case, the terminal device 130 supports simultaneous access to the network device 110 and the network device 120, that is, the terminal device 130 can perform uplink/downlink communication with the network device 110 on the first carrier, or can communicate with the network device 110 on the second carrier. The device 120 performs uplink/downlink communication, and may also perform uplink/downlink communication with the network device 110 and the network device 120 at the same time.

It should be noted that, for ease of understanding, FIG. 1 only schematically shows that the communication system 100 includes two network devices (network device 110 and network device 120) that support different wireless access technologies, and supports these two types. The terminal device (terminal device 130) of wireless access technology, but this should not constitute any limitation to this application.

Optionally, the communication system 100 may also include a greater number of network devices, and may also include a greater number of terminal devices. The wireless access technologies supported by these larger numbers of network devices may be the same or different. The network devices that communicate with different terminal devices can be the same network device or different network devices. The number of network devices that communicate with different terminal devices may be the same or different, which is not limited in this application.

It should be noted that the antenna structure of the existing terminal equipment supporting EN-DC is 1 NR antenna and 1 shared antenna. Among them, the NR antenna is used exclusively for NR uplink transmission, and the shared antenna switches the operating frequency band of the carrier. Meet the uplink transmission requirements of NR and LTE at different times. However, there is a switching time when the shared antenna is switched between the LTE working frequency band and the NR working frequency band, and the shared antenna cannot transmit signals during the switching time.

When the network equipment connected to EN-DC (i.e., NR network equipment and LTE network equipment) is deployed in a non-tightly coupled manner, that is, when the network equipment side cannot share scheduling messages in real time, the existing technology may cause the following situations to occur:

The network equipment side failed to take the antenna switching time into account when dispatching the scheduling. The scheduling indicated that the shared antenna of the EN-DC terminal worked in the LTE working frequency band for a period of time, and in the NR working frequency band ( Or work in the NR working frequency band for a period of time, and work in the LTE working band for a period of time), but the time difference between these two periods is not enough for the shared antenna to complete the switch, so the shared antenna cannot be sent normally according to the scheduling message In addition to allowing the terminal equipment to discard the affected symbols in this case, the existing technology does not define other terminal equipment side processing methods. Therefore, the network equipment side in the above-mentioned situation, the information contained in the received signal The amount is obviously lower than the amount of information carried in the signal normally received according to the scheduling message, and the communication efficiency is reduced.

For example, FIG. 2 shows a possible application scenario suitable for an embodiment of the present application. As shown in FIG. 2, a terminal device supporting EN-DC is scheduled in the first time period T _{1 on the first uplink carrier.} The first network device sends an uplink signal, and is scheduled to send the uplink signal to the second network device _{in a second time period T 2 on the second uplink carrier.} Wherein, the end time T ₂ and time T between the time _interval for the initial [Delta] T, in accordance with scheduling message indication, the terminal device needs to share the antenna operating band by the second uplink carrier frequency switching operation to the first uplink carrier , The time required for this carrier switching process is the first time length T.

The first uplink carrier uses the NR working frequency band, and the second uplink carrier uses the LTE working frequency band. The first time period T ₁ and the second time period T ₂ both include 14 symbols, and the end time of the second time period is earlier than At the beginning of the first time period, that is, when the shared antenna needs to be switched from the working frequency band of LTE to the working frequency band of NR, for example, when the first network device and the second network device are deployed in a non-tightly coupled manner, the two network devices cannot The scheduling message is shared. Therefore, in the case of ΔT<T, the shared antenna is too late to switch from the LTE working frequency band to the NR working frequency band within the time interval ΔT, and the shared antenna cannot normally send uplink signals according to the instructions of the scheduling message.

In the prior art, in the above scenario, the terminal device does not send signals on the affected symbols (such as not sending signals on symbols 0 to 3 in Figure 2), that is, discarding the symbols to be sent on symbols 0 to 3. ) To solve the above problem, but with the method provided by the prior art, the signal received by the first network device (the signal received on the symbol 4 to the symbol 13 in Fig. 2) contains less information than in accordance with the schedule message Normally received signals (such as the signals received on symbols 0 to 13 in Fig. 2) carry the amount of information, so the communication efficiency is low.

It should be noted that in Figure 2, the first uplink carrier uses the NR working frequency band, the second uplink carrier uses the LTE working frequency band, and the end time of the second time period is earlier than the start time of the first time period, that is, shared The antenna needs to be switched from the working frequency band of LTE to the working frequency band of NR as an example, but this application does not limit the sequence of the _{first time period T 1} and the second time period T _2. In other words, the end time of the first time period may be earlier than the start time of the second time period, that is, the shared antenna needs to be switched from the working frequency band of NR to the working frequency band of LTE.

Optionally, any time period in the embodiment of the present application may include multiple symbols (symbols), and the multiple symbols may be, for example, slots, mini-slots, or subframes ( subframe) or system frame (frame), etc., which are not limited in the embodiment of the present application.

It should also be noted that, in the embodiments of the present application, only the first time period T ₁ and the second time period T ₂ each include 14 symbols as an example for description. The present application describes the length of the first time period and the second time period Not limited. That is, the first time period and the second time period further include other numbers of symbols, and the lengths of the first time period and the second time period may be the same or different.

It should also be noted that the first time length T described in the embodiment of the present application can be understood as the switching time required for the shared antenna to switch from the working frequency band of the first carrier to the working frequency band of the second carrier.

Optionally, the length of the first time length is not limited in this embodiment of the application, for example, it is defined in the "OFF power requirement" in Figure 6.3B.2-1 and Figure 6.3B.2-2 in the protocol 38.101-3 The first time length may be 120 microseconds.

Optionally, the first time length T may be predefined or configured through higher layer signaling, which is not limited in the embodiment of the present application.

To address the problem of low communication efficiency in the prior art, embodiments of the present application provide a signal sending method 200, a signal sending method 300, a signal sending method 400, and a signal sending method 500 to improve communication efficiency.

FIG. 3 shows a schematic flowchart of a signal sending method 200 provided by an embodiment of the present application. The method 200 may be applied to the communication system as described in FIG. 1, which is not limited in the embodiment of the present application.

Optionally, the method 200 may be executed by a terminal device, and may be executed by a signal sending apparatus in the terminal device. The terminal device may be, for example, the terminal device 130 described in FIG. 1. For the convenience of description, the embodiments of the present application all use terminal device execution as an example for description.

S210. Receive first indication information from a first network device, where the first indication information indicates that a first modulation and coding scheme (MCS) is adopted in the first time period on the first uplink carrier; correspondingly, Preferably, the first network device sends the first indication information to the terminal device.

S220. In the case where the time interval between the end time of the first time period and the start time of the second time period is less than the first time period, or between the start time of the first time period and the second time period When the time interval between the end moments of the time period is less than the first time length, according to the first indication information, the second MCS is used to send the first time period in the first time period on the first uplink carrier. Uplink signal, wherein the first MCS and the second MCS are different, and the second time period is the time period for sending the second uplink signal on the second uplink carrier; accordingly, the first network device Receiving the first uplink signal sent by the terminal device by using a second MCS in the first time period on the first uplink carrier.

Optionally, before S220, the method further includes: receiving second indication information from a second network device, where the second indication information indicates that the uplink signal is sent in a second time period on the second uplink carrier.

It should also be noted that the steps of receiving the first indication information and the steps of receiving the second indication information are in no particular order.

Optionally, the first indication information may be carried in a variety of different signaling, which is not limited in the embodiment of the present application. For example, the first indication information may be carried in downlink control information (DCI) signaling.

Optionally, the second indication information may be carried in a variety of different signaling, which is not limited in the embodiment of the present application. For example, the second indication information may be carried in DCI signaling.

Optionally, the first uplink carrier and the second uplink carrier belong to different cell groups, which is not limited in the embodiment of the present application.

Optionally, the first indication information may be at least one bit, and the at least one bit indicates an index corresponding to the first MCS.

For example, the first indication information may be 5 bits in the DCI, and these 5 bits correspond to an MCS index value in the MCS index table configured by the higher layer.

Optionally, before S210, the method further includes: the terminal device reports a transmission capability to the first network device, where the transmission capability includes the number of supported transmission antennas and the maximum number of antenna ports; accordingly The first network device schedules the terminal device according to the maximum number of ports supported by the terminal device, that is, the first network device sends the first indication information to the terminal device according to the sending capability.

It should be noted that the terminal device supports 2 transmitting antennas. It can be understood that the maximum number of ports supported by the terminal device is 2, that is, the uplink signal can be sent on 1 port (the corresponding layer number is 1), or on 2 The uplink signal is sent on the port (the corresponding layer number is 2); the terminal device supports 1 transmitting antenna, which can be understood as the maximum number of ports supported by the terminal device is 1, that is, the uplink signal can be sent on 1 antenna port (corresponding layer The number is 1).

For example, taking a terminal device that supports EN-DC as an example, a typical transmitting antenna architecture of the terminal device is 1 NR antenna plus 1 shared (LTE and NR shared) antenna. Among them, the NR antenna is used exclusively as the NR antenna. For uplink transmission, the shared antenna can meet the uplink transmission requirements of NR and LTE at different times by switching carrier frequency bands.

In other words, the terminal device reports to the first network device that the maximum number of ports supported is 2. Correspondingly, the first network device schedules the terminal device according to 2 ports.

Correspondingly, before the terminal device receives the second indication information from the second network device, the terminal device may report the sending capability to the second network device, and the second network device may report to the terminal device according to the sending capability Sending the second instruction information.

Optionally, in S220, according to the first indication information, the second MCS is used to send the first uplink signal in the first time period on the first uplink carrier, which can be understood as: Indication information, determining the second MCS; using the second MCS to send a first uplink signal in the first time period on the first uplink carrier.

As an optional embodiment, the first indication information also indicates the number of the first layer. In S220, the second MCS is used to send the first uplink signal in the first time period on the first uplink carrier. It is understood that the first uplink signal is sent using the second MCS and the second layer number in the first time period on the first uplink carrier, wherein the index corresponding to the first MCS is smaller than the first uplink signal. Two indexes corresponding to the MCS, the first layer number is greater than the second layer number.

That is to say, in the scenario described in Figure 2, since the available transmitting antennas of the terminal equipment on the NR side are reduced from 2 to 1, the number of ports used to transmit the uplink signal on the NR side is reduced from 2 to 1. When the first layer number to be scheduled is 2 layers, the second layer number of the first uplink signal finally sent by the terminal device can only be 1 layer, that is, the second layer number is smaller than the first layer number. In this way, The transmit power of the terminal device on the currently available port remains unchanged, and the transmit power allocated for each symbol to be transmitted remains unchanged. Therefore, the terminal device can increase the MCS under the premise of reducing the number of layers, and can maintain the number of symbols to be transmitted unchanged, thereby maintaining the same throughput.

As another optional embodiment, the first indication information further indicates the first layer number, and in S220, the second MCS is used to send the first uplink signal in the first time period on the first uplink carrier, It can be understood that: the first uplink signal is sent using the second MCS and the second layer number in the first time period on the first uplink carrier, wherein the index corresponding to the first MCS is greater than the The index corresponding to the second MCS, the first layer number is equal to the second layer number.

Optionally, in the case that the first number of layers is equal to the second number of layers, the first indication information further indicates the number of antenna ports, wherein the number of antenna ports is greater than 1, and the first The number of layers is equal to 1.

That is to say, in the scenario described in Figure 2, since the available transmitting antennas of the terminal equipment on the NR side are reduced from 2 to 1, the number of ports used to transmit the uplink signal on the NR side is reduced from 2 to 1. When the first layer number to be scheduled is one layer, the second layer number of the first uplink signal finally sent by the terminal device can only be one layer, that is, the second layer number is equal to the first layer number. , The transmit power of the terminal device on the currently available port is reduced by half, and the allocated transmit power on each symbol to be transmitted is reduced by half. Therefore, in order not to deteriorate the decoding performance, the terminal device reduces the MCS while maintaining the number of layers unchanged, which can increase the transmit power that can be allocated for each symbol to be transmitted, thereby improving the reliability of transmission.

Optionally, in S220, the terminal device may determine the second MCS in multiple ways, which is not limited in the embodiment of the present application.

As an optional embodiment, the terminal device may determine the second MCS according to the first indication information and the difference between the index corresponding to the second MCS and the index corresponding to the first MCS.

Optionally, the difference between the index corresponding to the second MCS and the index corresponding to the first MCS is predefined, or the difference between the index corresponding to the second MCS and the index corresponding to the first MCS It is configured through high-layer signaling, or the difference between the index corresponding to the second MCS and the index corresponding to the first MCS is determined according to a predefined rule, which is not limited in the embodiment of the present application.

Optionally, the third indication information may be carried in radio resource control (radio resource control, RRC) signaling. For example, the third indication information may be the mcs-delta field added in the PUSCH-Config field of RRC signaling, the mcs-delta field includes at least one bit, and the index corresponding to the second MCS may be indicated by the at least one bit The difference of the index corresponding to the first MCS.

As another optional embodiment, the terminal device may also determine the second MCS according to the first indication information and a predefined second rule.

Optionally, the fifth indication information may be carried in RRC signaling.

For example, the fifth indication information may be a 1-bit mcs-Fallback enable bit added in the PUSCH-Config field of RRC signaling, and the 1-bit enable may be used to re-determine the MCS according to the second predefined rule, for example, When the enable bit is "1", it indicates that the MCS is re-determined according to the second predefined rule.

Optionally, the second rule may be: the index corresponding to the second MCS is the maximum value that can be obtained when the following formula 1 is satisfied:

N_info ₂ ≤N_info ₁ (Formula 1)

Among them, N_info ₂ =N_RE·R ₂ ·Q _m2 ·v ₂ , N_info ₁ =N_RE·R ₁ ·Q _m1 ·v ₁ , N_RE represents all available resource units on the physical uplink shared channel (PUSCH) (resource element, RE) number, v ₁ represents the number of layers corresponding to the first MCS, v ₂ represents the number of layers corresponding to the second MCS, Q _m1 represents the modulation order corresponding to the first MCS, and Q _m2 represents the number of layers corresponding to the second MCS Modulation order.

It should be noted that the modulation order and layer number corresponding to the first MCS can be obtained by querying the MCS index table through the index corresponding to the first MCS; the modulation order and layer number corresponding to the second MCS can be obtained through the second MCS The corresponding index is obtained by querying the MCS index table, where the MCS index table includes a plurality of MCS indexes, and the modulation order and the number of layers corresponding to each MCS index in the plurality of MCS indexes.

For example, when the index corresponding to the first MCS is 5, it can be known from the MCS index table that R ₁ =379 and Q _m1 =2, and according to the above-mentioned predefined rules, it can be obtained: the index corresponding to the second MCS is 11, where R ₂ =378, Q _m2 =4.

Specifically, in S220, the terminal device may perform a table lookup operation in the MCS index table according to the index corresponding to the second MCS, so as to obtain the modulation order and target code rate used in encoding. Take Table5.1.3.1-2 in protocol 38.214 as an example, when the index corresponding to MCS is 10 (decimal), it corresponds to the 11th row in the MCS index table, the modulation order Qm is 4 (16QAM), and the target code rate is 658 / 1024, the terminal device may _{_{N_info 2 = N_RE · R 2 ·}} Q m2 · v 2, this scheduling determination information bit length N_info _2.

Correspondingly, after modulating according to the above-mentioned Qm, the terminal device maps the modulation symbols to v layers. Taking v=2 as an example, when there are 10 modulation symbols to be transmitted after modulation, the 10 modulation symbols are modulated according to natural numbers. The symbols are arranged in sequence, the modulation symbols in the even positions are mapped to layer 1, and the modulation symbols in the odd positions are mapped to layer 2.

It should be noted that the modulation order is used to indicate how many bits a modulation symbol consists of, and the value range of the modulation order is from 1 to 8, and each value corresponds to a modulation method.

For example, the modulation modes corresponding to the modulation order from 1 to 8 are BPSK, QPSK, 8QAM, 16QAM, 32QAM, 64QAM, 128QAM, and 256QAM.

It should also be noted that the number of layers in this application may also be referred to as the number of spatial layers. Hereinafter, the description is given in terms of the number of spatial layers. The number of layers or the number of spatial layers is a resource measurement of the spatial dimension. It is supported by multi-antenna transceiving. The symbols on different spatial layers can be transmitted on the same time-frequency resource through space division multiplexing, thereby improving throughput.

FIG. 4 shows a schematic flowchart of a signal sending method 300 provided by an embodiment of the present application. The method 300 may be applied to the communication system as described in FIG. 1, which is not limited in the embodiment of the present application.

Optionally, the method 300 may be executed by a terminal device, and the terminal device may be, for example, the terminal device 130 described in FIG. 1. The method 300 may also be executed by a signal sending apparatus in a terminal device.

S310. Receive first indication information from a network device, where the first indication information indicates that a first MCS is used in a first time period on the first uplink carrier, and the first time period includes N consecutive symbols. The time difference between the start time of the Mth symbol in the N consecutive symbols and the end time of the second time period is less than the first time length, and the M+1th of the N consecutive symbols The time difference between the start time of the symbol and the end time of the second time period is greater than or equal to the first time length, and the second time period is the time period for sending the second uplink signal on the second uplink carrier ; Correspondingly, the network device sends the first indication information to the terminal device.

S320. When the M is less than or equal to the K, send a first uplink signal to the network device on a part of the N consecutive symbols on the first uplink carrier, where the The partial symbols are symbols other than the first M symbols in the N consecutive symbols, and no signal is sent on the first M symbols; accordingly, the network device receives the terminal on the partial symbols The first uplink signal sent by the device.

S330: When the M is greater than the K, use a second MCS on the N consecutive symbols on the first uplink carrier to send a first uplink signal to the network device; accordingly, the network The device receives, on the N consecutive symbols on the first uplink carrier, the first uplink signal sent by the terminal device using a second MCS.

Wherein, the N, the M and the K in the above S310 to S330 are all positive integers.

Optionally, the method specifically includes: determining the magnitude relationship between the M and the K; and determining whether to perform S320 or S330 according to the magnitude relationship between the M and the K.

It should be noted that the value of K can be understood as the maximum number of symbols that the network device supports without sending a signal under an acceptable bit error rate.

That is to say, when the number of received symbols is greater than NK, the network device can decode the information carried in the original N symbols with an acceptable bit error rate. Therefore, when the M is less than the K, execute S320; When the number of received symbols is less than NK, the network device cannot decode the information carried in the original N symbols. Therefore, when the M is greater than the K, S330 is executed.

It should be noted that S320 or S330 can be executed when the M is equal to the K, which is not limited in the embodiment of the present application.

Optionally, the K is predefined, or the K is configured through higher layer signaling, or the K is determined according to a predefined rule, which is not limited in the embodiment of the present application.

It should be noted that M can be understood as the maximum number of symbols occupied by the first time period in the first time period.

Optionally, the value of M may be determined in multiple ways, which is not limited in the embodiment of the present application.

For example, in conjunction with the scenario described in FIG. 2, when the first time period T ₁ and the second time period T ₂ when the terminal device is scheduled are as shown in FIG. 5, T ₁ includes symbols 0 to 13 in total. Consecutive symbols, where the time difference between the start time of symbol 3 (the 4th symbol) and _{the end time of T 2} is less than T, and the start time of symbol 4 (the 5th symbol) is equal to the T ₂ The time difference between the end moments of is greater than or equal to the T, and the value of M can be determined to be 4.

For another example, in conjunction with the scenario described in FIG. 2, when the first time period T ₁ and the second time period T ₂ when the terminal device is scheduled are as shown in FIG. 5, T ₁ includes symbols 0 to 13 in total 14 consecutive symbols, wherein the symbol 2 (3 symbols) in the time between the end time and the end time T is less than T _2, 3 and the symbol (4 symbols) and the end time T _2, The time difference between the end moments is greater than or equal to the T, and the value of M can also be determined to be 4.

It should also be noted that, in S320, the terminal device may not transmit a signal on at least one of the first M symbols, and the at least one symbol is the first at least one symbol of the first M symbols, And sending a first uplink signal to the network device on a part of the N consecutive symbols on the first uplink carrier, where the part of the symbol is a symbol other than a symbol for which no signal is sent.

For example, in FIG. 5 M = 4, when K = 5, the terminal apparatus 4 up to the previous symbol is not transmitted signal and transmits the first uplink signal at the other symbol T _1.

It should be noted that when the terminal device determines to perform S330, the specific implementation process can refer to S220 in the method 200. To avoid repetition, details are not described herein again.

Optionally, the method further includes: receiving second indication information from a second network device, wherein the second indication information indicates that the uplink signal is sent in a second time period on the second uplink carrier.

It should be noted that, for the introduction of the first indication information and the second indication information, reference may be made to the related introduction in the method 200, and to avoid repetition, the details are not repeated here.

Optionally, before S310, the method further includes: reporting a transmission capability to the first network device, where the transmission capability includes the number of supported transmission antennas and the maximum number of antenna ports; accordingly, the first network device The network device schedules the terminal device according to the maximum number of ports supported by the terminal device, that is, the first network device sends the first indication information to the terminal device according to the sending capability.

It should be noted that the terminal device reports the sending capability to the first network device and the second network device, and the first network device and the second network device schedule the terminal device according to the sending capability, please refer to method 200 In order to avoid repetition, I won’t repeat it here.

FIG. 6 shows a schematic flowchart of a signal sending method 400 provided by an embodiment of the present application. The method 400 may be applied to the communication system as described in FIG. 1, which is not limited in the embodiment of the present application.

Optionally, the method 400 may be executed by a terminal device, and the terminal device may be, for example, the terminal device 130 described in FIG. 1. The method 400 may also be executed by a terminal signal sending apparatus of a terminal device.

S410. Receive first indication information from a first network device, where the first indication information indicates that an uplink signal is sent using a first spatial layer number in a first time period on a first uplink carrier, and the first time period It includes N consecutive symbols; accordingly, the first network device sends the first indication information to the terminal device.

S420. Receive second indication information from the second network device, where the second indication information indicates that the uplink signal is sent in a second time period on the second uplink carrier, and the second time period includes M consecutive symbols ; Correspondingly, the second network device sends the second indication information to the terminal device.

S430. The time interval between the start time of the first time period and the end time of the second time period is less than a first time length, and the first time length includes the M consecutive symbols In the case of at least one symbol after the symbol, when the first spatial layer number is greater than 1, or when the first spatial layer number is equal to 1 and the number of antenna ports corresponding to the first spatial layer number is greater than 1, Sending a second uplink signal to the second network device on part of the M consecutive symbols on the second uplink carrier, where part of the symbols in the M consecutive symbols are the M Symbols other than the last at least one symbol in consecutive symbols, and no signal is sent on the last at least one symbol; accordingly, the second network device is on the second uplink carrier in the M The second uplink signal sent by the terminal device is received on part of the consecutive symbols.

S440. The time interval between the start time of the first time period and the end time of the second time period is less than a first time length, and the first time length includes the N consecutive symbols In the case of at least one symbol before, when the first spatial layer number is greater than 1, or when the first spatial layer number is equal to 1 and the number of antenna ports corresponding to the first spatial layer number is greater than 1, Sending a first uplink signal to the first network device on part of the N consecutive symbols on the first uplink carrier, where part of the N consecutive symbols is the N Symbols other than the previous at least one symbol among consecutive symbols, and no signal is sent on the previous at least one symbol; accordingly, the first network device is on the first uplink carrier in the N The first uplink signal sent by the terminal device is received on part of the consecutive symbols.

It should be noted that the execution order of S410 and S420 is in no particular order, and the execution order of S430 and S440 is in no particular order.

Optionally, the method specifically includes: determining whether the symbol occupied by the first time length belongs to the first time period or the second time period; and determining whether to perform S430, S440, or S430 and S440 according to the judgment result.

That is to say, if the first time length only occupies the symbols in the first time period, execute S440; if the first time length only occupies the symbols in the second time period, execute S430; if the first time length occupies the first time period For the symbols in the time period and the second time period, S430 and S440 are executed.

Optionally, the second time period includes M consecutive symbols, the first time period includes N consecutive symbols, and the first time length required in the carrier switching process of the terminal device includes the M consecutive symbols. In the case of at least one symbol after the symbol, when the first spatial layer number is equal to 1 and the number of antenna ports corresponding to the first spatial layer number is greater than 1, the terminal device is on the second uplink carrier Part of the symbols in the M consecutive symbols above sends a second uplink signal to the second network device, where some of the symbols in the M consecutive symbols are excluding the last at least one symbol Symbol, and no signal is sent on the last at least one symbol.

Correspondingly, the terminal device sends a first uplink signal to the first network device on the N consecutive symbols on the first uplink carrier.

For example, in conjunction with the scenario described in FIG. 2, when the first time period T ₁ and the second time period T ₂ when the terminal device is scheduled are as shown in FIG. 7, the first time period T occupies the second time period case ₂ T 12 symbols and 13 symbols, when the number of layers is equal to a first space and the number of antenna ports corresponding to the number of layers is greater than the first space 1, the terminal device at a second time period T ₂ and symbol 13 of the symbol 12 does not transmit a signal and to the second network device transmitting the second uplink signal in the 11 T ₂ 0 - symbols of the second symbol period, the first time period and a first uplink signal to the first network device transmitting the symbols T ₁ 0 13 symbols.

Optionally, the first time period includes N consecutive symbols, the second time period includes M consecutive symbols, and the first time length required in the carrier switching process of the terminal device includes the N consecutive symbols. In the case of the first at least one symbol in the symbols, when the first spatial layer number is equal to 1 and the number of antenna ports corresponding to the first spatial layer number is greater than 1, the terminal device is on the first uplink carrier Part of the symbols in the N consecutive symbols above sends a first uplink signal to the first network device, where the part of the symbols in the N consecutive symbols is excluding the previous at least one symbol Symbol, and no signal is sent on the first at least one symbol.

Correspondingly, the terminal device sends a second uplink signal to the second network device on the M consecutive symbols on the second uplink carrier.

For example, in conjunction with the scenario described in FIG. 2, when the first time period T ₁ and the second time period T ₂ when the terminal device is scheduled are shown in FIG. 8, the first time period is occupied by the first time length T In _{the case of symbols 0 and 1} in T1, when the first spatial layer number is equal to 1 and the number of antenna ports corresponding to the first spatial layer number is greater than 1, the terminal device is in the first time period T ₁ symbols 0 and 1 symbols do not transmit signals, and transmitting to the first network device on a first uplink signal at a first time period T ₁ symbols 2 to 13 symbols, and the second time period T ₂ The second uplink signal is sent to the second network device on the symbols 0 to 13 in.

Optionally, the first time period includes N consecutive symbols, the second time period includes M consecutive symbols, and the first time length required in the carrier switching process of the terminal device includes the M consecutive symbols. In the case of at least one symbol of the last symbol and at least one symbol of the N consecutive symbols, when the first spatial layer number is equal to 1 and the number of antenna ports corresponding to the first spatial layer number is greater than At 1, the terminal device sends a first uplink signal to the first network device on some of the N consecutive symbols on the first uplink carrier, and on the second uplink carrier A second uplink signal is sent to the second network device on part of the M consecutive symbols, and no signal is sent on the first at least one symbol and the last at least one symbol, where the N The partial symbols in the consecutive symbols are symbols other than the first at least one symbol, and the partial symbols in the M consecutive symbols are symbols other than the latter at least one symbol.

For example, in combination with the scenario described in FIG. 2, when the first time period T ₁ and the second time period T ₂ when the terminal device is scheduled are as shown in FIG. 9, the first time period T includes the first time period In the case of symbol 0 in _{T 1} _{and symbol 13 in the second time period T 2} , when the first spatial layer number is equal to 1 and the number of antenna ports corresponding to the first spatial layer number is greater than 1, the the terminal device does not transmit signals on the first symbol period 0 to T ₁ and T ₂ are in the second symbol period 13, and the first period T ₁ in the symbol 1 to symbol 13 to the first The network device sends a first uplink signal, and sends a second uplink signal to the second network device on symbols 0 to 12 _{in the second time period T 2.}

It should be understood that when the first time length includes the first W symbols in the first time period, that is, the terminal device does not send a signal on the first W symbols (as shown in FIG. 8), if W is greater than Under the premise that the bit error rate corresponding to the code result is less than or equal to the target bit error rate, the maximum allowable number of missing symbols in the transmitted signal may affect the normal decoding of the first network device.

Therefore, the terminal device may disperse part or all of the W symbols that do not send signals on the second network device side, that is, the first time length includes the last A symbols of the second time period and the first B symbols of the first time period. Symbol so that B is less than the maximum allowable number of missing symbols of the transmitted signal under the premise that the error rate corresponding to the decoding result is less than or equal to the target error rate, where A+B=W, and both A and W A positive integer, and the B is an integer greater than or equal to zero.

Therefore, dispersing part (as shown in FIG. 9) or all (as shown in FIG. 7) of the W symbols that do not send signals on the second network device side is beneficial to improve the accuracy of decoding on the first network device side.

Optionally, when the time interval between the start time of the first time period and the end time of the second time period is less than the first time length, when the first space layer number is equal to 1, , The terminal device sends a third uplink signal to the first network device on the N consecutive symbols on the first uplink carrier, and the M consecutive symbols on the second uplink carrier Sending a fourth uplink signal to the second network device on the symbol of.

Optionally, before S410, the method further includes: reporting a transmission capability to the first network device, where the transmission capability includes the number of supported transmission antennas and the maximum number of antenna ports; accordingly, the first The network device schedules the terminal device according to the maximum number of ports supported by the terminal device, that is, the first network device sends the first indication information to the terminal device according to the sending capability.

Optionally, before S420, the method further includes: reporting a transmission capability to the second network device, where the transmission capability includes the number of supported transmitting antennas and the maximum number of antenna ports; accordingly, the second The network device schedules the terminal device according to the maximum number of ports supported by the terminal device, that is, the second network device sends the second indication information to the terminal device according to the sending capability.

FIG. 10 shows a schematic flowchart of a signal sending method 500 provided by an embodiment of the present application. The method 500 may be applied to the communication system as described in FIG. 1, which is not limited in the embodiment of the present application.

Optionally, the method 500 may be executed by a terminal device, and the terminal device may be, for example, the terminal device 130 described in FIG. 1.

S510. Receive first indication information from a network device, where the first indication information indicates that the first MCS is used in the first time period on the first uplink carrier; accordingly, the network device sends to the terminal device The first indication information.

S520. In the case that the time interval between the end time of the first time period and the start time of the second time period is less than the first time length, when the time of receiving the first indication information is later than the time of receiving the second time period. When the information is indicated, according to the first indication information, according to the first indication information, a second MCS is used to send a first uplink signal within the first time period on the first uplink carrier, where: The second indication information indicates that the second uplink signal is sent in the second time period on the second uplink carrier; accordingly, the network device is in the first time period on the first uplink carrier Receiving the first uplink signal sent by the terminal device using a second MCS.

S530. In the case that the time interval between the end time of the first time period and the start time of the second time period is less than the first time length, when the time of receiving the first indication information is earlier than the time of receiving the second time period. When the information is indicated, the first uplink signal is sent to the network device on part of the N consecutive symbols included in the first uplink carrier, where the part of the symbols is divided by the N consecutive symbols. A symbol outside the first at least one symbol in the symbol, and no signal is sent on the first at least one symbol, and the second time period is a time period for sending a second uplink signal on a second uplink carrier; accordingly, the The network device receives the first uplink signal sent by the terminal device on some of the N consecutive symbols included in the first uplink carrier.

Optionally, before S520, the method further includes: receiving second indication information from another network device, where the second indication information is used to indicate that the uplink signal is sent in a second time period on the second uplink carrier.

Optionally, the method specifically includes: determining the sequence of the moment of receiving the first indication information and the moment of receiving the second indication information; and determining whether to perform S520 or S530 according to the sequence.

That is to say, in the scenario described in FIG. 2, if the time of receiving the first indication information is earlier than the time of receiving the second indication information, the signal sending device has sufficient time to use the re-determined MCS to complete the encoding, so , Execute S520; if the time of receiving the first indication information is later than the time of receiving the second indication information, the terminal device does not have enough time to use the re-determined MCS to complete the encoding, therefore, execute S530.

It should be noted that when the terminal device determines to perform S520, the specific implementation process can refer to S220 in method 200, and when the terminal device determines to perform S530, the specific implementation process can refer to S320 in method 300, which is To avoid repetition, I won’t repeat them here.

The signal processing method provided by the embodiment of the present application is described in detail above with reference to FIGS. 1 to 10, and the signal processing apparatus provided by the embodiment of the present application will be described below with reference to FIGS. 11 to 18.

FIG. 11 shows a schematic block diagram of a signal sending device 600 provided by an embodiment of the present application. The device 600 includes:

The receiving unit 610 is configured to receive first indication information from the first network device, where the first indication information indicates that the first modulation and coding mode MCS is adopted in the first time period on the first uplink carrier;

The sending unit 620 is configured to: when the time interval between the end time of the first time period and the start time of the second time period is less than the first time period, or at the beginning of the first time period When the time interval between the time and the end time of the second time period is less than the first time length, according to the first indication information, the second time period is used in the first time period on the first uplink carrier. The MCS sends a first uplink signal, where the first MCS and the second MCS are different, and the second time period is a time period for sending a second uplink signal on a second uplink carrier.

Optionally, the index corresponding to the first MCS is smaller than the index corresponding to the second MCS.

Optionally, the first indication information further indicates a first spatial layer number, and the sending unit 620 is specifically configured to adopt a second MCS and a second spatial layer in the first time period on the first uplink carrier. The number of layers sends the first uplink signal, where the number of the first spatial layers is greater than the number of the second spatial layers.

Optionally, the first indication information further indicates a first spatial layer number, and the sending unit 620 is specifically configured to adopt a second MCS and a second spatial layer in the first time period on the first uplink carrier. The first uplink signal is transmitted by the number of layers, where the first spatial layer number is equal to the second spatial layer number, and the index corresponding to the first MCS is greater than the index corresponding to the second MCS.

Optionally, the first indication information further indicates the number of antenna ports, wherein the number of antenna ports is greater than one, and the number of first spatial layers is equal to one.

Optionally, the device 600 further includes a determining unit 630, the determining unit 630 is specifically configured to determine the second MCS according to the first indication information; and the sending unit 620 is specifically configured to The second MCS is used to send the first uplink signal in the first time period on an uplink carrier.

Optionally, the determining unit 630 is specifically configured to determine the second MCS according to the first indication information and the difference between the index corresponding to the second MCS and the index corresponding to the first MCS.

Optionally, the difference between the index corresponding to the second MCS and the index corresponding to the first MCS is predefined, or the difference between the index corresponding to the second MCS and the index corresponding to the first MCS It is configured through high-level signaling, or the difference between the index corresponding to the second MCS and the index corresponding to the first MCS is determined according to a predefined rule.

Optionally, the first uplink carrier and the second uplink carrier belong to different cell groups.

It should be understood that the device 600 here is embodied in the form of a functional unit. The term "unit" here can refer to application specific integrated circuit (application specific integrated circuit, ASIC), electronic circuit, processor for executing one or more software or firmware programs (such as shared processor, proprietary processor or group Processor, etc.) and memory, merge logic circuits and/or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the device 600 may be specifically the signal processing device in the foregoing method 200 to method 500 embodiments, and the device 600 may be used to execute the signal processing device in the foregoing method 200 to method 500 embodiments. Each process and/or step corresponding to the processing device is not repeated here to avoid repetition.

FIG. 12 shows a schematic block diagram of a signal sending apparatus 700 provided by an embodiment of the present application. The signal sending device 700 includes:

The receiving unit 710 is configured to receive first indication information from a network device, where the first indication information indicates that the first MCS is used in a first time period on the first uplink carrier, and the first time period includes N Consecutive symbols, the time difference between the start time of the Mth symbol in the N consecutive symbols and the end time of the second time period is less than the first time length, and the first time in the N consecutive symbols The time difference between the start time of M+1 symbols and the end time of the second time period is greater than or equal to the first time period, and the second time period sends a second uplink signal on a second uplink carrier Time period; and

The sending unit 720 is configured to send a first uplink signal to the network device on some of the N consecutive symbols on the first uplink carrier when the M is less than or equal to K, where: The partial symbols are symbols other than the first M symbols in the N consecutive symbols, and no signal is transmitted on the first M symbols; when the M is greater than the K, the first On the N consecutive symbols on the uplink carrier, the second MCS is used to send the first uplink signal to the network device; wherein, the N, M, and K are all positive integers.

Optionally, the first indication information further indicates a first spatial layer number, and the sending unit 720 is specifically configured to adopt a second MCS and a second spatial layer in the first time period on the first uplink carrier. The number of layers sends the first uplink signal, where the number of the first spatial layers is greater than the number of the second spatial layers.

Optionally, the first indication information further indicates a first spatial layer number, and the sending unit 720 is specifically configured to adopt a second MCS and a second spatial layer in the first time period on the first uplink carrier. The first uplink signal is transmitted by the number of layers, where the first spatial layer number is equal to the second spatial layer number, and the index corresponding to the first MCS is greater than the index corresponding to the second MCS.

Optionally, the device 700 further includes a determining unit 730, which is specifically configured to determine the second MCS according to the first indication information; and the sending unit 720 is specifically configured to The second MCS is used to send the first uplink signal in the first time period on an uplink carrier.

Optionally, the determining unit 730 is specifically configured to determine the second MCS according to the first indication information and the difference between the index corresponding to the second MCS and the index corresponding to the first MCS.

Optionally, the K is predefined, or the K is configured through higher layer signaling, or the K is determined according to a predefined rule.

It should be understood that the signal sending device 700 here is embodied in the form of a functional unit. The term "unit" here can refer to ASICs, electronic circuits, processors for executing one or more software or firmware programs (such as shared processors, proprietary processors, or group processors, etc.) and memory, combined logic circuits, and /Or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the signal sending device 700 may be specifically the signal sending device in the foregoing method 200 to method 500 embodiments, and the signal sending device 700 may be used to perform the foregoing method 200 to method 500 implementations. In the example, each process and/or step corresponding to the signal sending device is not repeated here in order to avoid repetition.

In a possible design, the device 700 may be replaced with a chip device, for example, a communication chip that can be used in the device to implement related functions of the processor in the device. The chip device can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. . The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.

In a possible design, the apparatus 700 may be a terminal device.

FIG. 13 shows a schematic block diagram of a signal sending apparatus 800 provided by an embodiment of the present application. The signal sending device 800 includes:

The receiving unit 810 is configured to receive first indication information from a first network device, where the first indication information indicates that a first spatial layer number is used in a first time period on the first uplink carrier, and the first time The segment includes N consecutive symbols; the second indication information is received from the second network device, where the second indication information indicates that the first spatial layer number is used in the second time period on the second uplink carrier, so The second time period includes M consecutive symbols; and

The sending unit 820 is configured to, when the time interval between the start time of the first time period and the end time of the second time period is less than the first time length, when the first space layer number is greater than When 1, or when the first spatial layer number is equal to 1 and the number of antenna ports corresponding to the first spatial layer number is greater than 1, the part of the N consecutive symbols on the first uplink carrier The first uplink signal is sent to the first network device on the symbol, where part of the symbols in the N consecutive symbols are symbols other than the first at least one symbol in the N consecutive symbols, and the No signal is sent on the first M symbols; and/or, when the time interval between the start time of the first time period and the end time of the second time period is less than the first time length, when all When the first spatial layer number is greater than 1, or when the first spatial layer number is equal to 1 and the number of antenna ports corresponding to the first spatial layer number is greater than 1, the M on the second uplink carrier The second uplink signal is sent to the second network device on part of the symbols in the consecutive symbols, where the part of the symbols in the M consecutive symbols is at least one symbol after the division of the M consecutive symbols Outside symbols, and no signal is sent on the last at least one symbol.

Optionally, the device 800 further includes a determining unit 830 configured to determine that the first time length occupies a symbol in the first time period and/or occupies a symbol in the second time period, the The sending unit 820 is specifically configured to: when the first time length occupies the symbols in the first time period, send the first uplink carrier to the first uplink carrier on some of the N consecutive symbols. The network device sends the first uplink signal; and/or when the first time length occupies the symbol in the second time period, part of the M consecutive symbols on the second uplink carrier Sending the second uplink signal to the second network device on the symbol.

Optionally, the sending unit 820 is specifically configured to: when the time interval between the start time of the first time period and the end time of the second time period is less than the first time length, when the When the first spatial layer number is equal to 1, a third uplink signal is sent to the first network device on the N consecutive symbols on the first uplink carrier, and all the signals on the second uplink carrier Sending a fourth uplink signal to the second network device on the M consecutive symbols.

It should be understood that the signal sending device 800 here is embodied in the form of a functional unit. The term "unit" here can refer to ASICs, electronic circuits, processors for executing one or more software or firmware programs (such as shared processors, proprietary processors, or group processors, etc.) and memory, combined logic circuits, and /Or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the signal sending device 800 may be specifically the signal sending device in the foregoing method 200 to method 500 embodiments, and the signal sending device 800 may be used to perform the foregoing method 200 to method 500 implementations. In the example, each process and/or step corresponding to the signal sending device is not repeated here in order to avoid repetition.

In a possible design, the device 800 may be replaced with a chip device, for example, a communication chip that can be used in the device to implement related functions of the processor in the device. The chip device can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. . The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.

In a possible design, the apparatus 800 may be a terminal device.

FIG. 14 shows a schematic block diagram of a signal sending device 900 provided by an embodiment of the present application. The signal sending device 900 includes:

The receiving unit 910 is configured to receive first indication information from a network device, where the first indication information indicates that the first modulation and coding mode MCS is adopted in the first time period on the first uplink carrier; and

The sending unit 920 is configured to, when the time interval between the end time of the first time period and the start time of the second time period is less than the first time length, when the time of receiving the first indication information is late At the moment when the second indication information is received, according to the first indication information, according to the first indication information, the second MCS is used to send the message to the network within the first time period on the first uplink carrier. The device sends a first uplink signal, where the second indication information indicates that the second uplink signal is sent within the second time period on the second uplink carrier; at the end of the first time period and the second time In the case that the time interval between the start moments of the segments is less than the first time length, when the time of receiving the first indication information is earlier than the time of receiving the second indication information, the N included in the first uplink carrier The first uplink signal is sent to the network device on part of the consecutive symbols, where the part of the symbol is a symbol other than the first at least one symbol in the N consecutive symbols, and the first at least No signal is sent on one symbol, and the second time period is a time period for sending the second uplink signal on the second uplink carrier.

Optionally, the device 900 further includes a determining unit 930 configured to determine the sequence of the moment of receiving the first indication information and the moment of receiving the second indication information; the sending unit 920 specifically uses When the time at which the first indication information is received is later than the time at which the second indication information is received, according to the first indication information, according to the first indication information, the second indication on the first uplink carrier The second MCS is used to send the first uplink signal to the network device within a period of time. When the time of receiving the first indication information is earlier than the time of receiving the second indication information, the N included in the first uplink carrier Sending the first uplink signal to the network device on part of the consecutive symbols.

Optionally, the first indication information further indicates a first spatial layer number, and the sending unit 920 is specifically configured to adopt a second MCS and a second spatial layer in the first time period on the first uplink carrier. The number of layers sends the first uplink signal, where the number of the first spatial layers is greater than the number of the second spatial layers.

Optionally, the first indication information further indicates a first spatial layer number, and the sending unit 920 is specifically configured to adopt a second MCS and a second spatial layer in the first time period on the first uplink carrier. The first uplink signal is transmitted by the number of layers, where the first spatial layer number is equal to the second spatial layer number, and the index corresponding to the first MCS is greater than the index corresponding to the second MCS.

Optionally, the apparatus further includes a determining unit, the determining unit is specifically configured to determine the second MCS according to the first indication information; and the sending unit 920 is specifically configured to perform the operation on the first uplink carrier Use the second MCS to send the first uplink signal in the first time period above.

Optionally, the determining unit 910 is specifically configured to determine the second MCS according to the first indication information and the difference between the index corresponding to the second MCS and the index corresponding to the first MCS.

It should be understood that the signal sending device 900 here is embodied in the form of a functional unit. The term "unit" here can refer to ASICs, electronic circuits, processors for executing one or more software or firmware programs (such as shared processors, proprietary processors, or group processors, etc.) and memory, combined logic circuits, and /Or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the signal sending device 900 may be specifically the signal sending device in the foregoing method 200 to method 500 embodiments, and the signal sending device 900 may be used to perform the foregoing method 200 to method 500 implementations. In the example, each process and/or step corresponding to the signal sending device is not repeated here in order to avoid repetition.

In a possible design, the device 900 may be replaced with a chip device, for example, a communication chip that can be used in the device to implement related functions of the processor in the device. The chip device can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. . The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.

In a possible design, the apparatus 900 may be a terminal device.

FIG. 15 shows a terminal device 1000 provided by an embodiment of the present application. The terminal device 1000 may include the signal sending apparatus 600 described in FIG. 11, or the terminal device 1000 may be the signal sending apparatus 600 described in FIG. 11. The device 600 may adopt the hardware architecture shown in FIG. 15. The terminal device 1000 may include a processor 1010, a transceiver 1020, and a memory 1030. The processor 1010, the transceiver 1020, and the memory 1030 communicate with each other through an internal connection path. The relevant functions implemented by the determining unit 630 in FIG. 11 may be implemented by the processor 1010, and the relevant functions implemented by the receiving unit 610 and the sending unit 620 may be implemented by the processor 1010 controlling the transceiver 1020.

The processor 1010 may include one or more processors, for example, includes one or more central processing units (central processing unit, CPU). In the case that the processor is a CPU, the CPU may be a single-core CPU or It can be a multi-core CPU.

The transceiver 1020 is used to send and receive data and/or information, and to receive data and/or information. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.

The memory 1030 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable programmable memory, EPROM), and read-only memory. A compact disc (read-only memory, CD-ROM), the memory 1030 is used to store related instructions and data.

The memory 1030 is used to store program codes and data of the device, and may be a separate device or integrated in the processor 1010.

Specifically, the processor 1010 is configured to control the transceiver to perform signal transmission with the first network device and the second network device. For details, please refer to the description in the method embodiment, which will not be repeated here.

It can be understood that Figure 15 only shows a simplified design of the device. In practical applications, the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all devices that can implement this application are within the protection scope of this application. Inside.

In a possible design, the terminal device 1000 may be replaced with a chip device, for example, a communication chip that can be used in a device to implement related functions of a processor in the device. The chip device can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. . The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.

In a possible design, the apparatus 1000 may be a terminal device.

FIG. 16 shows a terminal device 1100 provided by an embodiment of the present application. The terminal device 1100 may be the signal sending apparatus 700 described in FIG. 12, or the terminal device 1100 may include the signal sending apparatus 700 described in FIG. 12 . The device 700 may adopt the hardware architecture shown in FIG. 16. The terminal device 1100 may include a processor 1110, a transceiver 1120, and a memory 1130. The processor 1110, the transceiver 1120, and the memory 1130 communicate with each other through an internal connection path. The related functions implemented by the determining unit 730 in FIG. 12 can be implemented by the processor 1110, and the related functions implemented by the receiving unit 710 and the sending unit 720 can be implemented by the processor 1110 controlling the transceiver 1120.

The processor 1110 may include one or more processors, for example, including one or more CPUs. In the case where the processor is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The transceiver 1120 is used to send and receive data and/or information, and to receive data and/or information. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or information, and the receiver is used to receive data and/or information.

The memory 1130 includes but is not limited to RAM, ROM, EPROM, and CD-ROM. The memory 1130 is used to store related instructions and data.

The memory 1130 is used to store program codes and data of the device, and may be a separate device or integrated in the processor 1110.

Specifically, the processor 1110 is configured to control the transceiver to perform signal transmission with the first network device and the second network device. For details, please refer to the description in the method embodiment, which will not be repeated here.

It can be understood that FIG. 16 only shows a simplified design of the terminal device. In practical applications, the terminal equipment can also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all devices that can implement the application are within the protection scope of the application. within.

FIG. 17 shows a terminal device 1200 provided by an embodiment of the present application. The terminal device 1200 may be the signal sending apparatus 800 described in FIG. 13, or the terminal device 1200 may include the signal sending apparatus 800 described in FIG. 13 . The device 800 may adopt the hardware architecture shown in FIG. 17. The terminal device 1200 may include a processor 1210, a transceiver 1220, and a memory 1230. The processor 1210, the transceiver 1220, and the memory 1230 communicate with each other through an internal connection path. The relevant functions implemented by the determining unit 830 in FIG. 13 can be implemented by the processor 1210, and the relevant functions implemented by the receiving unit 810 and the sending unit 820 can be implemented by the processor 1210 controlling the transceiver 1220.

The processor 1210 may include one or more processors, such as one or more CPUs. In the case where the processor is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The transceiver 1220 is used to send and receive data and/or information, and to receive data and/or information. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or information, and the receiver is used to receive data and/or information.

The memory 1230 includes but is not limited to RAM, ROM, EPROM, and CD-ROM, and the memory 1230 is used to store related instructions and data.

The memory 1230 is used to store program codes and data of the device, and may be a separate device or integrated in the processor 1210.

Specifically, the processor 1210 is configured to control the transceiver to perform signal transmission with the first network device and the second network device. For details, please refer to the description in the method embodiment, which will not be repeated here.

It can be understood that FIG. 17 only shows a simplified design of the terminal device. In practical applications, the terminal equipment can also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all devices that can implement the application are within the protection scope of the application. within.

FIG. 18 shows a terminal device 1300 provided by an embodiment of the present application. The terminal device 1300 may be the signal sending apparatus 900 described in FIG. 14, or the terminal device 1300 may include the signal sending apparatus 900 described in FIG. 14. . The terminal device 900 may adopt the hardware architecture shown in FIG. 18. The terminal device 1300 may include a processor 1310, a transceiver 1320, and a memory 1330. The processor 1310, the transceiver 1320, and the memory 1330 communicate with each other through an internal connection path. The relevant functions implemented by the determining unit 930 in FIG. 14 can be implemented by the processor 1310, and the relevant functions implemented by the receiving unit 910 and the sending unit 920 can be implemented by the processor 1310 controlling the transceiver 1320.

The processor 1310 may include one or more processors, for example, including one or more CPUs. In the case where the processor is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The transceiver 1320 is used to send and receive data and/or information, and to receive data and/or information. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or information, and the receiver is used to receive data and/or information.

The memory 1330 includes but is not limited to RAM, ROM, EPROM, and CD-ROM, and the memory 1330 is used to store related instructions and data.

The memory 1330 is used to store program codes and data of the device, and may be a separate device or integrated in the processor 1310.

Specifically, the processor 1310 is configured to control the transceiver to perform signal transmission with the first network device and the second network device. For details, please refer to the description in the method embodiment, which will not be repeated here.

It can be understood that FIG. 18 only shows a simplified design of the terminal device. In practical applications, the terminal equipment can also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all devices that can implement the application are within the protection scope of the application. within.

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

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

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

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

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

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

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

Claims

A signal sending method, characterized in that it comprises:

Receiving first indication information from the first network device, where the first indication information indicates that the first modulation and coding mode MCS is adopted in the first time period on the first uplink carrier;

In the case where the time interval between the end time of the first time period and the start time of the second time period is less than the first time period, or between the start time of the first time period and the second time period If the time interval between the end moments of is less than the first time length, according to the first indication information, the second MCS is used to send the first uplink signal in the first time period on the first uplink carrier , Wherein the first MCS and the second MCS are different, and the second time period is a time period for sending a second uplink signal on a second uplink carrier.
A signal sending method, characterized in that it comprises:

Receiving first indication information from a network device, where the first indication information indicates that the first MCS is used in a first time period on the first uplink carrier, the first time period includes N consecutive symbols, and The time difference between the start time of the Mth symbol of the N consecutive symbols and the end time of the second time period is less than the first time length, and the time difference between the M+1th symbol of the N consecutive symbols The time difference between the start time and the end time of the second time period is greater than or equal to the first time length, and the second time period is a time period for sending a second uplink signal on a second uplink carrier; and

When the M is less than or equal to K, the first uplink signal is sent to the network device on part of the N consecutive symbols on the first uplink carrier, where the part of the symbols is divided by Symbols outside the first M symbols in the N consecutive symbols, and no signal is sent on the first M symbols;

When the M is greater than the K, use a second MCS on the N consecutive symbols on the first uplink carrier to send the first uplink signal to the network device;

Wherein, the N, M and K are all positive integers.
The method according to claim 1 or 2, wherein the index corresponding to the first MCS is smaller than the index corresponding to the second MCS.
The method according to claim 3, wherein the first indication information further indicates a first layer number, and the second MCS is used to send the first layer number in the first time period on the first uplink carrier. An upstream signal, including:

The first uplink signal is sent in the first time period on the first uplink carrier by using a second MCS and a second number of layers, where the first number of layers is greater than the second number of layers.
The method according to claim 1 or 2, wherein the first indication information also indicates a first layer number, and the second MCS is used in the first time period on the first uplink carrier Sending the first uplink signal includes:

The first uplink signal is sent in the first time period on the first uplink carrier using a second MCS and a second number of layers, where the first number of layers is equal to the second number of layers, The index corresponding to the first MCS is greater than the index corresponding to the second MCS.
The method according to claim 5, wherein the first indication information further indicates the number of antenna ports, wherein the number of antenna ports is greater than one, and the first layer number is equal to one.
The method according to any one of claims 1 to 6, wherein, according to the first indication information, a second MCS is used to send a first time period on the first uplink carrier within the first time period. Uplink signals, including:

Determine the second MCS according to the first indication information; and

Using the second MCS to send a first uplink signal in the first time period on the first uplink carrier.
The method according to claim 7, wherein the determining the second MCS according to the first indication information comprises:

Determine the second MCS according to the first indication information and the difference between the index corresponding to the second MCS and the index corresponding to the first MCS.
The method according to claim 8, wherein:

The difference between the index corresponding to the second MCS and the index corresponding to the first MCS is predefined, or

The difference between the index corresponding to the second MCS and the index corresponding to the first MCS is configured through higher layer signaling, or

The difference between the index corresponding to the second MCS and the index corresponding to the first MCS is determined according to a predefined rule.
The method according to any one of claims 1 to 9, wherein the first uplink carrier and the second uplink carrier belong to different cell groups.
The method according to claim 2, wherein:

The K is predefined, or

The K is configured through higher layer signaling, or

The K is determined according to a predefined rule.
A terminal device, characterized by comprising: a processor, and a receiver and a transmitter coupled with the processor, wherein:

The receiver is configured to receive first indication information from a first network device, where the first indication information indicates that the first modulation and coding mode MCS is adopted in the first time period on the first uplink carrier;

The transmitter is configured to: when the time interval between the end time of the first time period and the start time of the second time period is less than the first time period, or at the beginning of the first time period When the time interval between the time and the end time of the second time period is less than the first time length, according to the first indication information, the second time period is used in the first time period on the first uplink carrier. The MCS sends a first uplink signal, where the first MCS and the second MCS are different, and the second time period is a time period for sending a second uplink signal on a second uplink carrier.
A terminal device, characterized by comprising: a processor, and a receiver and a transmitter coupled with the processor, wherein:

The receiver is configured to receive first indication information from a network device, where the first indication information indicates to adopt a first MCS in a first time period on a first uplink carrier, and the first time period includes N Consecutive symbols, the time difference between the start time of the Mth symbol in the N consecutive symbols and the end time of the second time period is less than the first time length, and the first time in the N consecutive symbols The time difference between the start time of M+1 symbols and the end time of the second time period is greater than or equal to the first time period, and the second time period sends a second uplink signal on a second uplink carrier Time period; and

The transmitter is configured to, when the M is less than or equal to K, send a first uplink signal to the network device on part of the N consecutive symbols on the first uplink carrier, where: The partial symbols are symbols other than the first M symbols in the N consecutive symbols, and no signal is sent on the first M symbols; when the M is greater than the K, the first The second MCS is used to send the first uplink signal to the network device on the N consecutive symbols on the uplink carrier; wherein, the N, M, and K are all positive integers.
The device according to claim 12 or 13, wherein the index corresponding to the first MCS is smaller than the index corresponding to the second MCS.
The device according to claim 14, wherein the first indication information further indicates a first layer number,

The first uplink signal is transmitted using a second MCS and a second layer number in the first time period on the first uplink carrier, wherein the first layer number is greater than the second layer number .
The device according to claim 12 or 13, wherein the first indication information further indicates a first layer number,

The first uplink signal is transmitted using a second MCS and a second layer number in the first time period on the first uplink carrier, wherein the first layer number and the second layer number If equal, the index corresponding to the first MCS is greater than the index corresponding to the second MCS.
The device according to claim 16, wherein the first indication information further indicates the number of antenna ports, wherein the number of antenna ports is greater than one, and the first layer number is equal to one.
The device according to any one of claims 12 to 17, wherein the processor is configured to determine the second MCS according to the first indication information; and

The transmitter is configured to use the second MCS to send a first uplink signal in the first time period on the first uplink carrier.
The device according to claim 18, wherein the processor is configured to determine the second MCS as follows:

Determine the second MCS according to the first indication information and the difference between the index corresponding to the second MCS and the index corresponding to the first MCS.
The device according to claim 19, wherein:

The difference between the index corresponding to the second MCS and the index corresponding to the first MCS is predefined, or

The difference between the index corresponding to the second MCS and the index corresponding to the first MCS is configured through higher layer signaling, or

The difference between the index corresponding to the second MCS and the index corresponding to the first MCS is determined according to a predefined rule.
The device according to any one of claims 12 to 20, wherein the first uplink carrier and the second uplink carrier belong to different cell groups.
The device of claim 13, wherein:

The K is predefined, or

The K is configured through higher layer signaling, or

The K is determined according to a predefined rule.
A signal sending device in a terminal device, comprising a processor and a memory, the processor and the memory are coupled, and the processor is configured to execute the method according to any one of claims 1 to 11.
A terminal device, characterized in that the terminal device includes the signal sending device described in claim 23.
A chip device includes: an input interface, an output interface, at least one processor, and a memory. The input interface, the output interface, the processor, and the memory communicate with each other through an internal connection path, and the processing The processor is used to execute the code in the memory, and is characterized in that when the processor executes the code, the chip device implements the method according to any one of claims 1 to 11.
A computer-readable storage medium for storing a computer program, wherein the computer program includes instructions for implementing the method according to any one of claims 1 to 11.
A computer program product, the computer program product contains instructions, characterized in that, when the instructions are run on a computer, the computer realizes the method according to any one of claims 1 to 11.