CN109302744B

CN109302744B - Information transmission method, terminal equipment and network equipment

Info

Publication number: CN109302744B
Application number: CN201710613440.8A
Authority: CN
Inventors: 杜白; 彭金磷; 张鹏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-07-25
Filing date: 2017-07-25
Publication date: 2021-06-01
Anticipated expiration: 2037-07-25
Also published as: WO2019019951A1; CN109302744A

Abstract

The application provides a method for transmitting information, network equipment and terminal equipment. The method comprises the following steps: the network equipment determines whether resource preemption exists; when determining that resource preemption exists, the network equipment sends a first control channel in a first resource region, wherein the first control channel comprises first indication information, the first indication information is used for indicating a second resource region, and the second resource region is a resource subjected to resource preemption; when it is determined that there is no resource preemption, the network device sends a second control channel in a third resource region, where the second control channel includes second indication information, the second indication information is not used for indicating the second resource region, and the third resource region is different from the first resource region. According to the information transmission method, the network equipment and the terminal equipment, the terminal equipment can distinguish different signaling according to different resource regions, and the blind detection overhead of the terminal equipment is reduced.

Description

Information transmission method, terminal equipment and network equipment

Technical Field

The present application relates to the field of communications, and more particularly, to a method, a terminal device, and a network device for transmitting information.

Background

In order to cope with explosive mobile data traffic increase, massive mobile communication device connection, and various new services and application scenarios which are continuously emerging, the fifth generation (5G) mobile communication system is in operation. The International Telecommunications Union (ITU) defines three broad classes of application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), high-reliability and low-latency communications (URLLC), and massive machine type communications (mtc). The URLLC service has extremely high requirement on time delay, and under the condition of not considering reliability, the transmission time delay requirement is within 0.5 millisecond (ms); on the premise of reaching 99.999 percent of reliability, the transmission delay is required to be within 1 ms.

In a Long Term Evolution (LTE) system, the minimum time scheduling unit is a Transmission Time Interval (TTI) with a time length of 1 ms. In order to meet the transmission delay requirement of URLLC traffic, the data transmission of the wireless air interface may use a shorter time scheduling unit, for example, a mini-slot (mini-slot) or a slot with a larger subcarrier interval as a minimum time scheduling unit. Wherein, a mini-slot includes one or more time domain symbols, where the time domain symbols may be Orthogonal Frequency Division Multiplexing (OFDM) symbols. For a timeslot with subcarrier spacing of 15 kilohertz (kHz), including 6 or 7 time domain symbols, the corresponding time length is 0.5 ms; for a time slot with a subcarrier spacing of 60kHz, the corresponding time length is shortened to 0.125 ms. Because data of the URLLC service has burstiness and randomness, in order to improve the utilization rate of system resources, the base station usually does not reserve resources for downlink data transmission of the URLLC service. When the URLLC service data reaches the base station, if there is no idle time-frequency resource, the base station cannot wait for the completion of the transmission of the eMBB service data scheduled this time and then schedule the URLLC service data in order to meet the ultra-short delay requirement of the URLLC service. And the base station allocates resources for URLLC service data in a preemption (preemption) mode. The preemption means that the base station selects part or all of the time-frequency resources for transmitting the URLLC service data from the allocated time-frequency resources for transmitting the eMBB service data, and the base station does not send the data of the eMBB service on the time-frequency resources for transmitting the URLLC service data. The terminal device needs to detect different Physical Downlink Control Channels (PDCCHs), including a PDCCH for indicating resource preemption and a PDCCH without resource preemption (i.e., normal data scheduling), which may result in a large blind detection overhead for the terminal device. Therefore, a new method is needed to solve the above problems.

Disclosure of Invention

The application provides a method for transmitting information, a terminal device and a network device, so that the terminal device can distinguish different signaling according to different resource regions, and the method is favorable for reducing the blind detection overhead of the terminal device on the PDCCH.

In a first aspect, a method for transmitting information is provided, including:

the network equipment determines whether resource preemption exists;

when determining that resource preemption exists, the network equipment sends a first control channel in a first resource region, wherein the first control channel comprises first indication information, the first indication information is used for indicating a second resource region, and the second resource region is a resource subjected to resource preemption;

when it is determined that there is no resource preemption, the network device sends a second control channel in a third resource region, where the second control channel includes second indication information, the second indication information is not used for indicating the second resource region, and the third resource region is different from the first resource region.

In this embodiment of the present application, when determining that there is resource preemption, a network device may send a first control channel in a first resource region; upon determining that there is no resource preemption, a second control channel may be sent in a third resource region, the third resource region being different from the first resource region. Correspondingly, the terminal equipment detects the second control channel on the third resource region to acquire second indication information in the second control channel; when the second control channel is not detected, the first control channel is detected on the first resource region to obtain the first indication information in the first control channel, so that different signaling (such as the first control channel and the second control channel) can be distinguished through different resource regions. Here, if the terminal device detects the second control channel in the third resource region, where the second control channel includes the second indication information, the terminal device does not need to continue to perform blind detection in the first resource region, and thus does not need to perform detection on the first control channel, which is beneficial to reducing the number of blind detections of the terminal device. Compared with the prior art that blind detection needs to be performed on different physical downlink control channels in the first resource region and the third resource region, the technical scheme of the embodiment of the application can save the blind detection overhead of the terminal device.

Optionally, the first control channel may be a Physical Downlink Control Channel (PDCCH), where information carried in the PDCCH may be collectively referred to as Downlink Control Information (DCI). Specifically, the first indication information may be included in the downlink control information DCI.

Alternatively, the downlink control information DCI may be control information for one or more UEs.

Alternatively, when the downlink control information DCI is for a group of UEs, the downlink control information DCI may be referred to as a group common DCI. That is, the DCI carried in the first control channel may also be referred to as a group common DCI.

Optionally, the first indication information may specifically indicate: whether resource preemption occurs in the first time zone or which resources are preempted in the first time zone. For example, the second resource region is a resource in which resource preemption occurs in the first time region.

In some possible implementations, the first control channel further includes the second indication information.

That is, the first indication information and the second indication information may be included in a first control channel.

In some possible implementations, upon determining that there is resource preemption, the method further comprises:

the network device sends the second control channel in the first resource region.

Therefore, in this embodiment, the network device may send the first control channel separately in the first resource region, or may send the first control channel and the second control channel in the first resource region.

In some possible implementations, the method further includes:

the network device configures the first resource region through signaling.

Therefore, the network equipment configures the first resource region only under the condition that the current time-frequency position is determined to be possible to cause resource preemption; under the condition that the current time-frequency position is determined not to allow or not possible to cause resource preemption, the network equipment does not configure the first resource region, and then the first resource region can be used for data transmission, which is beneficial to reducing resource waste.

Optionally, the network device sends the first control channel in a resource region where there is a time domain and/or frequency domain intersection with the first resource region.

Optionally, the network device sends the second control channel in a resource region where there is no time domain and/or frequency domain intersection with the first resource region.

Optionally, the network device sends the second control channel at a certain resource location in a resource region where there is a time domain and/or frequency domain overlap with the third resource region.

Therefore, the resource region for the network device to send the first control channel or the second control channel is more flexible to select.

In a second aspect, a method for transmitting information is provided, including:

the terminal equipment detects the second control channel on the third resource region;

when the terminal device detects the second control channel in the third resource region, obtaining second indication information in the second control channel, where the second indication information is not used for indicating a second resource region, and the second resource region is a resource in which resource preemption occurs;

when the terminal device does not detect the second control channel on the third resource region, the terminal device detects a first control channel on a first resource region;

when the terminal device detects the first control channel on a first resource region, acquiring first indication information in the first control channel, wherein the first indication information is used for indicating the second resource region.

In the embodiment of the application, the terminal device detects the second control channel on the third resource region to obtain second indication information in the second control channel; when the second control channel is not detected, the first control channel is detected on the first resource region to obtain the first indication information in the first control channel, so that different signaling (such as the first control channel and the second control channel) can be distinguished through different resource regions. Here, if the terminal device detects the second control channel in the third resource region, where the second control channel includes the second indication information, the terminal device does not need to continue to perform blind detection in the first resource region, and thus does not need to perform detection on the first control channel, which is beneficial to reducing the number of blind detections of the terminal device. Compared with the prior art that blind detection needs to be performed on different physical downlink control channels in the first resource region and the third resource region, the technical scheme of the embodiment of the application can save the blind detection overhead of the terminal device.

Optionally, the first indication information may specifically indicate: whether resource preemption occurs in the first time zone or which resources are preempted in the first time zone. For example, the second resource region is a resource in which resource preemption occurs within a certain time region.

For example, if the first indication information indicates that resource a is preempted, the resource allocated to the terminal device for receiving data is resource B, and resource a and resource B have an intersection, the terminal device knows that the preempted resource is the intersection of resource a and resource B. Then, when performing the subsequent decoding operation, the terminal device will remove the data on the preempted resource first, and then perform decoding, which is helpful to improve the decoding accuracy.

In some possible implementations, the method further includes:

and the terminal equipment detects the second control channel in the first resource region.

Therefore, in the embodiment of the present application, the terminal device may detect the first control channel in the first resource region alone, or may detect the first control channel and the second control channel in the first resource region.

In some possible implementations, the first resource region is configured by the network device through signaling.

Optionally, the terminal device performs blind detection on a resource region having a time domain and/or a frequency domain overlapping with the third resource region, and receives the second control channel at a corresponding resource position to obtain the second indication information in the second control channel.

Optionally, the terminal device performs blind detection on the second control channel on a resource region where there is no time domain and/or frequency domain intersection with the first resource region. If the terminal equipment detects a second control channel, determining that no resource preemption exists, and not continuing to perform blind detection on a resource region without a time domain and/or frequency domain intersection with the first resource region; and if the terminal equipment does not detect the second control channel, the terminal equipment performs blind detection on the first control channel on a resource area which has a time domain and/or frequency domain intersection with the first resource area. If the terminal equipment detects the first indication information in the first control channel, determining that resource preemption exists, and performing the following processing in a decoding operation: eliminating data on the preempted resource area and then performing decoding operation; and if the terminal equipment does not detect the first indication information, the data elimination processing is not carried out in the decoding process.

In a third aspect, a network device is provided, configured to perform the method in the first aspect or any possible implementation manner of the first aspect. In particular, the network device comprises means for performing the method of the first aspect described above or any possible implementation manner of the first aspect.

In a fourth aspect, there is provided a terminal device configured to perform the method of the second aspect or any possible implementation manner of the second aspect. In particular, the terminal device comprises means for performing the method of the second aspect or any possible implementation manner of the second aspect.

In a fifth aspect, a network device is provided. The network device includes a processor, a memory, and a transceiver. The processor is coupled to the memory and the transceiver. The memory is for storing instructions, the processor is for executing the instructions, and the transceiver is for communicating with other network elements under control of the processor. The processor, when executing the instructions stored by the memory, causes the processor to perform the method of the first aspect or any possible implementation of the first aspect.

In a sixth aspect, a terminal device is provided. The terminal device includes a processor, a memory, and a transceiver. The processor is coupled to the memory and the transceiver. The memory is for storing instructions, the processor is for executing the instructions, and the transceiver is for communicating with other network elements under control of the processor. The processor, when executing the instructions stored by the memory, causes the processor to perform the second aspect or the method of any possible implementation of the second aspect.

In a seventh aspect, a computer-readable storage medium is provided, which stores a program that causes a network device to execute the method for transmitting information according to the first aspect and any one of its various implementations.

In an eighth aspect, there is provided a computer-readable storage medium storing a program for causing a terminal device to execute the method of the second aspect described above, and any of its various implementations, for transmitting information.

In a ninth aspect, the present application provides a processing apparatus comprising a processor and an interface, the processor being configured to support a network device to implement the functions referred to in the first aspect or any one of the possible implementations of the first aspect. For example, the processor may be configured to determine whether there is resource preemption. The processor transmits a first control channel to the transceiver of the terminal device in the first resource region via the interface upon determining that there is resource preemption, such that the transceiver transmits the first control channel to the processing means of the terminal device. The processor transmits a second control channel to the transceiver of the terminal device in the third resource region via the interface upon determining that there is no resource preemption, such that the transceiver transmits the second control channel to the processing means of the terminal device. The processing means may be implemented by a chip, or may be implemented by other hardware (e.g., logic circuit, integrated circuit, etc.).

In a tenth aspect, the present application provides a processing apparatus comprising a processor and an interface, the processor being configured to enable a terminal device to implement the functions referred to in the second aspect or any possible implementation manner of the second aspect. For example, the processor may be configured to receive a second control channel over the interface and detect the second control channel on a third resource region to obtain the second indication information, and to receive a first control channel over the interface and detect the first control channel on the first resource region to obtain the first indication information when the second control channel is not detected on the third resource region. The processing means may be implemented by a chip, or may be implemented by other hardware (e.g., logic circuit, integrated circuit, etc.).

In an eleventh aspect, the present application provides a computer program product comprising instructions for causing a computer to perform the method of the first aspect or any of the possible implementations of the first aspect when the computer program product runs on a computer.

In a twelfth aspect, the present application provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the method of the second aspect or any of the possible implementations of the second aspect.

Drawings

Fig. 1 is a schematic architecture diagram of a mobile communication system to which an embodiment of the present application is applied.

Fig. 2 is a schematic interaction diagram of a method of transmitting information according to an embodiment of the application.

FIG. 3 is a diagram illustrating an example of a first resource region and a third resource region according to an embodiment of the present application.

FIG. 4 is a schematic diagram of an example according to an embodiment of the present application.

FIG. 5 is a schematic diagram of another example according to an embodiment of the present application.

FIG. 6 is a schematic diagram of yet another example according to an embodiment of the present application.

FIG. 7 is a schematic diagram of another example according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a network device according to an embodiment of the present application.

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

Fig. 10 is a block diagram of a network device according to another embodiment of the present application.

Fig. 11 is a block diagram of a terminal device according to another embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, and other current communication systems, and is particularly applicable to a future 5G New Radio (NR) system, a 5G system, or a communication system based on an Orthogonal Frequency Division Multiplexing (OFDM) technology.

Fig. 1 is an architecture diagram of a mobile communication system to which an embodiment of the present application is applied. As shown in fig. 1, the mobile communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (e.g., a terminal device 130 and a terminal device 140 in fig. 1). The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or the function of the core network device and the logical function of the radio access network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the radio access network device. The terminal equipment may be fixed or mobile. It should be understood that fig. 1 is only a schematic diagram, and that other network devices, such as a wireless relay device and a wireless backhaul device (not shown in fig. 1), may also be included in the communication system. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.

The radio access network device is an access device in which the terminal device is accessed to the mobile communication system in a wireless manner, and may be a base station NodeB, an evolved node b, a base station gNB in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, and the like.

The Terminal device may also be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and so on.

The wireless access network equipment and the terminal equipment can be deployed on land, including indoors or outdoors, and are handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons and satellite vehicles. The embodiment of the application does not limit the application scenarios of the wireless access network device and the terminal device.

The embodiments of the present application may be applicable to downlink signal transmission, may also be applicable to uplink signal transmission, and may also be applicable to device-to-device (D2D) signal transmission. For downlink signal transmission, the sending device is a radio access network device, and the corresponding receiving device is a terminal device. For uplink signal transmission, the transmitting device is a terminal device, and the corresponding receiving device is a radio access network device. For D2D signaling, the sending device is a terminal device and the corresponding receiving device is also a terminal device. The embodiment of the present application does not limit the transmission direction of the signal.

The radio access network device and the terminal device, and the terminal device may communicate via a licensed spectrum (licensed spectrum), may communicate via an unlicensed spectrum (unlicensed spectrum), and may communicate via both the licensed spectrum and the unlicensed spectrum. The radio access network device and the terminal device may communicate with each other through a frequency spectrum of less than 6 gigahertz (GHz), may communicate through a frequency spectrum of more than 6GHz, and may communicate by using both a frequency spectrum of less than 6GHz and a frequency spectrum of more than 6 GHz. The embodiments of the present application do not limit the spectrum resources used between the radio access network device and the terminal device.

Fig. 2 shows a schematic interaction diagram of a method 200 of transferring information according to an embodiment of the application. For example, the network device in fig. 2 may be radio access network device 120 in fig. 1, and the terminal device in fig. 2 may be terminal device 130 or terminal device 140 in fig. 1. As shown in fig. 2, the method 200 includes:

s201, the network equipment determines whether resource preemption exists;

optionally, the network device may determine whether there is resource preemption in a first time region, the first time region including one or more time units. The time unit may be a time domain symbol, a micro slot mini-slot, a slot, a Transmission Time Interval (TTI), a subframe, or a radio frame.

Specifically, for services with burstiness and randomness (which may also be understood as ultra-short delay requirement services in which transmission resources are not reserved by the network device), the network device may allocate resources for these services in a preemptive manner. For example, a network device may preempt all or a portion of transmission resources used for transmitting enhanced mobile broadband (eMBB) traffic data in order to transmit data for high reliable and low latency communications (URLLC) traffic.

S202, when determining that resource preemption exists, the network equipment sends a first control channel in a first resource area, wherein the first control channel comprises first indication information, the first indication information is used for indicating a second resource area, and the second resource area is a resource area in which resource preemption occurs;

Alternatively, optionally, the DCI carried in the first control channel may also be a DCI for a certain UE, for example, a UE-specific DCI, which is not limited herein.

Optionally, the first indication information may be further configured to indicate at least one of a group ID (group ID), a starting position of a data channel, an ending position of a control channel, and Slot Format Information (SFI).

Optionally, the first indication information may specifically indicate: whether resource preemption occurs in the first time zone or which resources are preempted in the first time zone. For example, the second resource region is a resource region in which resource preemption occurred within the first time region.

Optionally, the second resource region may be a resource reserved by the network device.

S203, when it is determined that there is no resource preemption, the network device sends a second control channel in a third resource region, where the second control channel includes second indication information, the second indication information is not used to indicate the second resource region, and the third resource region is different from the first resource region;

optionally, the second control channel may be a PDCCH, where information carried in the PDCCH may be collectively referred to as DCI. Specifically, the second indication information may be included in the DCI.

Optionally, DCI carried in the second control channel may also be referred to as group common DCI. Here, the DCI carried in the second control channel is different from the DCI carried in the first control channel in that: indication information included in DCI is different.

Alternatively, optionally, the DCI carried in the second control channel may also be a DCI for a certain UE, for example, a UE specific DCI, which is not limited herein.

Correspondingly, S204, the terminal device detects the second control channel on the third resource region;

that is to say, the terminal device performs blind detection on the second control channel in the third resource region, and if the second control channel is detected, the terminal device may acquire the second indication information in the second control channel, and no detection is performed in the first resource region, and it is considered that no resource preemption occurs.

S205, when the terminal device does not detect the second control channel in the third resource region, the terminal device detects a first control channel in a first resource region;

Specifically, the terminal device may perform blind detection on the first control channel in the first resource region. If the first indication information is detected, the terminal equipment considers that resource preemption occurs; if the first indication information is not detected, the terminal equipment does not process. For example, if the first indication information indicates that resource a is preempted, the resource allocated to the terminal device for receiving data is resource B, and resource a and resource B have an intersection, the terminal device knows that the preempted resource is the intersection of resource a and resource B. Then, when performing the subsequent decoding operation, the terminal device will remove the data on the preempted resource first, and then perform decoding, which is helpful to improve the decoding accuracy.

Optionally, the terminal device may also detect the first control channel in the first resource region first, and detect the second control channel in the third resource region if the first indication information is not detected, which is not limited herein.

In this embodiment of the application, the first indication information may indicate the second resource region by using a coarse granularity or a fine granularity. In addition, which granularity is specifically adopted by the network device for indicating can be determined according to the actual bit overhead. Wherein, the coarser the granularity, the smaller the overhead; the finer the granularity, the greater the overhead. It should be noted that, when the first indication information indicates the second resource region with a coarser granularity, a part of the resource region indicated by the first indication information may not be actually preempted in the resource region indicated by the first indication information. For example, the minimum granularity indicated by the first indication information is 10 Resource Blocks (RBs), but only 5 RBs of the 10 RBs are actually preempted, and at least 5 RBs (the 5 RBs are not actually preempted) are indicated to be preempted.

In this embodiment of the present application, when determining that there is resource preemption, a network device may send a first control channel in a first resource region; upon determining that there is no resource preemption, a second control channel may be sent in a third resource region, the third resource region being different from the first resource region. Correspondingly, the terminal equipment detects the second control channel on the third resource region to receive second indication information in the second control channel; when the second control channel is not detected, the first indication information in the first control channel is received by detecting the first resource region, so that different signaling (such as the first control channel and the second control channel) can be distinguished through different resource regions. Here, if the terminal device detects the second control channel in the third resource region, where the second control channel includes the second indication information, the terminal device does not need to continue to perform blind detection in the first resource region, and thus does not need to perform detection on the first control channel, which helps to reduce the number of blind detections. Compared with the prior art that blind detection needs to be performed on different physical downlink control channels in the first resource region and the third resource region, the technical scheme of the embodiment of the application can save the blind detection overhead of the terminal device.

Optionally, as an embodiment, the second resource region may further be: the location of the affected resource. The affected resource locations refer to: resources that are interfered by other traffic. Alternatively, the second resource may also be a reserved resource or a channel condition information-interference measurement (CSI-IM) resource. Where the reserved resource may be a resource reserved for LTE use, for example, the first three symbols of one subframe (subframe) may need to be reserved for PDCCH use of LTE. The CSI-IM resource is a time-frequency resource for transmitting at least one of a channel state information reference signal (CSI-RS), an uplink Sounding Reference Signal (SRS), an Uplink (UL) or Downlink (DL) demodulation reference signal (DMRS), and a zero-power channel state information reference signal (zero-power CSI-RS), a zero-power SRS, and a zero-power UL/DL DMRS.

In this embodiment, the network device may send the first control channel separately in the first resource region, or may send the first control channel and the second control channel in the first resource region.

For example, the first indication information may be included in a first control channel. For example, the DCI carried in the first control channel may be a group common DCI, where the group common DCI includes the first indication information.

Correspondingly, the terminal device may detect a first control channel in the first resource region to obtain the first indication information.

Optionally, for a case that the first indication information is transmitted in a first control channel, the first control channel may further include the second indication information. That is, if necessary, the network device may also send the second indication information through the first control channel.

Correspondingly, the terminal device may detect a first control channel in the first resource region to obtain the first indication information and the second indication information.

Optionally, for a case that both the first control channel and the second control channel are transmitted in the first resource region, when it is determined that there is resource preemption, the method further includes:

For example, if it is further required to send second indication information carried in a second control channel, the network device may also send the second control channel in the first resource region.

Correspondingly, the terminal device can detect the first control channel and the second control channel in the first resource region.

Optionally, the network device may predefine the first resource zone and the third resource zone.

It should be noted that the first resource region and the third resource region are not overlapped with each other, but the embodiment of the present application does not limit the specific positional relationship between the first resource region and the third resource region. FIG. 3 shows a schematic diagram of an example of a first resource zone and a third resource zone in accordance with an embodiment of the present application. As shown in fig. 3, for the first case and the third case in fig. 3, the network device may first define a third resource region, and then select a part of resources in the third resource region to define as the first resource region, wherein the selected part of resources no longer belongs to the third resource region. Alternatively, as shown in fig. 3, for the second case in fig. 3, the first resource region and the third resource region are independent from each other, for example, the first resource region and the third resource region may be respectively a control resource set (core) defined in NR. Or, alternatively, the first resource region and the third resource region may be a part of a search space (search space) in the downlink control channel region.

The following description will take the case where there is resource preemption and there is no resource preemption in the first time region, respectively. If the network device determines that the resource preemption exists in the first time region, the network device may send a signaling at the end of the resource in the first time region or at the beginning of the resource in the second time region. Fig. 4 shows a schematic diagram of an example according to an embodiment of the application. As shown in fig. 4, the first resource region and the third resource region defined by the network device are at the first part of the resource of the second time region. In the first scenario of fig. 4, there is resource preemption in the first time region. In the first situation, the network device sends a first control channel in a first resource region, where DCI carried by the first control channel includes first indication information, where the first indication information is used to indicate a second resource region, and the second resource region is a resource region in which resource preemption occurs in the first time region. In the second scenario of fig. 4, there is no resource preemption in the first time region. In the second scenario, the network device transmits a second control channel in the third resource region, where the second control channel includes second indication information, and the second indication information is not used for indicating the second resource region.

Fig. 5 shows a schematic diagram of another example according to an embodiment of the application. The difference with fig. 4 is that in the first scenario, the network device may also send a second control channel in the first resource region. As shown in fig. 5, in the first scenario of fig. 5, there is resource preemption in the first time region. In a first scenario, a network device sends a first control channel in a first resource region, the first control channel including the first indication information. If necessary, the network device may further send a second control channel in the first resource region, where the second control channel includes second indication information, and the second indication information is not used to indicate the second resource region. In the second scenario of fig. 5, there is no resource preemption in the first time region. In the second scenario, the network device transmits the second control channel in a third resource region.

The above describes the case where the first indication information is transmitted in the second time region through the first control channel when the resource preemption occurs in the first time region. For some time regions where resource preemption does not occur, for example, a time region composed of pure uplink time units or uplink dominant time units, which corresponds to a time region (assumed to be the second time region) for sending the first indication information, is not actually used for sending the first indication information. In other words, if the first time region is a pure uplink time region or a time region mainly used for uplink, the first indication information does not need to be transmitted in the second time region.

For a time zone in which the first time zone is composed of pure uplink time units, the terminal device may have the following processing modes: (1) the terminal equipment can directly not detect the first control channel, thereby avoiding unnecessary processing and being beneficial to saving the power consumption of the terminal equipment; or, (2) if the terminal device detects the first control channel, when the first indication information is acquired in the first control channel, the terminal device may ignore the first indication information or consider that the first control channel is faulty.

Optionally, the network device may multiplex the resources of the first resource region to transmit data.

Specifically, if it is determined that there is no resource preemption, the network device does not transmit the first indication information over the first control channel in the first resource region. In this way, the network device may transmit data using the resources of the first resource region.

Correspondingly, when the terminal device finds that the resource allocated to the terminal device by the network device intersects with the first resource region, if the terminal device detects the second control channel in the third resource region, the terminal device defaults that the first indication information does not exist in the first resource region, and data can be received in a part intersecting with the first resource region.

Optionally, if the terminal device does not detect the second control channel in the third resource region, the terminal device does not receive data in the first resource region.

Or, optionally, if the terminal device does not detect the second control channel in the third resource region, the terminal device performs blind detection on the first control channel in the first resource region. If the first control channel is detected in the first resource region, the terminal device may receive data in a resource of the first resource region other than the first control channel.

Optionally, the network device may use a rate matching (rate matching) method or a preemption method to bypass the time-frequency resource of the first control channel to map the data.

Wherein, the rate matching mode is as follows: when the network device maps the data sent to the terminal device, the network device will adjust the channel mapping of the sent data, and map all the data to be sent to the remaining time-frequency resources except the reserved resources. This is described herein in connection with the example of fig. 6. It should be understood that the example in fig. 6 is only for facilitating the understanding of the embodiments of the present application by those skilled in the art, and does not limit the scope of the embodiments of the present application. As shown in the upper part of fig. 6, when the network device is not configured with reserved resources, resource 1 is used for transmitting data 1 and data 2, resource 2 is used for transmitting data 3 and data 4, and resource 3 is used for transmitting data 5 and data 6. When the network device configures resource 2 as a reserved resource, for the rate matching scheme, as shown in the middle part of fig. 6, resource 1 is used to transmit data 1, data 2, and data 3, and resource 3 is used to transmit data 4, data 5, and data 6. Thus, more data is transmitted on each resource, but data 1-6 are all mapped and transmitted. It should be understood that the transmission of data 3 and data 4 before and after the reserved resource in fig. 6 is only an example, and no limitation is made on how to adjust the channel mapping and/or Modulation and Coding Scheme (MCS) specifically. For the preemption, as shown in the lower part of fig. 6, data 3 and data 4 originally transmitted in resource 2 are replaced with other data. Then data 3 and data 4 are lost to the receiving end.

Therefore, the network device can multiplex the resource in the first resource region to send data, which is beneficial to improving the resource utilization rate.

In this embodiment of the present application, a network device may send a first control channel in a resource region intersecting with a first resource region; the second control channel may also be sent in a resource region that does not intersect the first resource region. As will be described below.

Correspondingly, the terminal equipment performs blind detection on the second control channel on the resource region without time domain and/or frequency domain intersection with the first resource region. If the terminal equipment detects the second control channel, determining that resource preemption does not exist, and not performing blind detection on the first control channel in a resource region which has a time domain and/or frequency domain intersection with the first resource region; and if the terminal equipment does not detect the second control channel, the terminal equipment performs blind detection on the first control channel on a resource area which has a time domain and/or frequency domain intersection with the first resource area. If the terminal equipment detects the first indication information in the first control channel, determining that resource preemption exists, and performing the following processing in a decoding operation: eliminating data on the preempted resource area and then performing decoding operation; and if the terminal equipment does not detect the first indication information, the data elimination processing is not carried out in the decoding process.

Or, optionally, the network device may send the second control channel on a resource that intersects the third resource region. Wherein the resource having an intersection with the third resource region may be understood as: a resource region that overlaps with the third resource region in a time domain and/or a frequency domain. Correspondingly, the terminal equipment performs blind detection on the second control channel on a resource region which has time domain and/or frequency domain overlapping with the third resource region.

For example, fig. 7 shows a schematic diagram of another example according to an embodiment of the application. As shown in fig. 7, the first resource region and the third resource region exist independently. In fig. 7, the resource intersecting the first resource region may be candidate location (candidate)1, candidate location 2, candidate location 3; the resources that do not intersect the first resource region are candidate location 4, candidate location 5. The resources intersected with the third resource region may be alternative positions 3, 4 and 5; the resources that do not intersect the third resource region are candidate location 1 and candidate location 2. For example, the blind detection of the resource intersected with the first resource region by the terminal device means that: blind detection is carried out on the alternative position 1, the alternative position 2 and the alternative position 3; the blind detection of the resource which does not intersect with the first resource region by the terminal device means that: and blind detection is carried out on the alternative positions 4 and 5.

That is, the first control channel may be transmitted or blind-detected not only in the first resource region, but also in a resource region intersecting with the first resource region, which is not limited in this respect. Similarly, the second control channel may perform transmission or blind detection not only in the third resource region, but also in a resource region that intersects with the third resource region, or in a resource that does not intersect with the first resource region, which is not limited herein.

Optionally, before the network device sends the first indication information at the first resource location, the method 200 further includes:

the network device configures the first resource region through signaling.

Specifically, the network device may configure the first resource region through signaling when determining that there may be resource preemption. The first resource region may not be configured if the network device determines that resource preemption will not occur. For example, when the network device configures a certain time-frequency resource region (frequency domain may be sub-band, bandwidth Part, resource block group RBG, resource block RB; time domain may be time units such as time domain symbol, micro-slot mini-slot, slot, transmission time interval TTI, subframe, or radio frame) as a coexistence region or a region where resource preemption may occur, the network device may configure the first resource region in the time region where the first indication information needs to be sent. Here, the coexistence area may be understood as an area that may be used for transmitting eMBB traffic and URLLC traffic.

In this way, the network device configures the first resource region only when determining that the current time-frequency position is the condition that resource preemption is likely to occur; under the condition that the current time-frequency position is determined not to allow or not possible to cause resource preemption, the network equipment does not configure the first resource region, and then the first resource region can be used for data transmission, which is beneficial to reducing resource waste.

The foregoing describes a method of transmitting information in accordance with an embodiment of the present application. Hereinafter, a network device and a terminal device according to an embodiment of the present application will be described.

Fig. 8 shows a schematic block diagram of a network device 800 according to an embodiment of the application. As shown in fig. 8, the network device 800 includes:

a determining module 810 for determining whether there is resource preemption;

a sending module 820, configured to send a first control channel in a first resource region, where the first control channel includes first indication information, and the first indication information is used to indicate a second resource region, where the second resource region is a resource in which resource preemption occurs; or, the apparatus is configured to transmit a second control channel in a third resource region, where the second control channel includes second indication information, the second indication information is not used to indicate the second resource region, and the third resource region is different from the first resource region.

Optionally, the first control channel further includes the second indication information.

Optionally, the sending module 820 is further configured to:

transmitting the second control channel in the first resource region.

Optionally, the network device 800 further includes:

a configuring module 830, configured to configure the first resource region through signaling.

The network device 800 according to the embodiment of the present application may execute the method on the network device side in the method 200 for transmitting information according to the embodiment of the present application, and the above and other operations and/or functions of each module in the network device 800 are respectively for implementing corresponding flows of the foregoing methods, so that beneficial effects in the method 200 may also be implemented, and for brevity, no further description is given here.

Fig. 9 shows a schematic block diagram of a terminal device 900 according to an embodiment of the application. As shown in fig. 900, the terminal apparatus 900 includes:

a detection module 910, configured to detect a second control channel on a third resource region;

an obtaining module 920, configured to obtain second indication information in the second control channel when the terminal device detects the second control channel in the third resource region, where the second indication information is not used to indicate a second resource region, and the second resource region is a resource in which resource preemption occurs;

the detecting module 910 is further configured to detect a first control channel on a first resource region when the terminal device does not detect the second control channel on the third resource region;

the obtaining module 920 is further configured to obtain first indication information in a first control channel when the terminal device detects the first control channel on a first resource region, where the first indication information is used to indicate the second resource region.

Optionally, the detecting module 910 is further configured to:

detecting the second control channel in the first resource region.

Optionally, the first resource region is configured by the network device through signaling.

The terminal device 900 according to the embodiment of the present application may execute the method on the terminal device side in the method 200 for transmitting information according to the embodiment of the present application, and the above and other operations and/or functions of each module in the terminal device 900 are respectively for implementing corresponding flows of the foregoing methods, so that beneficial effects in the method 200 may also be implemented, and for brevity, no further description is provided herein.

Fig. 10 is a block diagram of a network device provided according to an embodiment of the present application. The network device 1000 shown in fig. 10 includes: a processor 1001, a memory 1002, and a transceiver 1003.

The processor 1001, the memory 1002, and the transceiver 1003 communicate with each other via internal connection paths, passing control and/or data signals.

Optionally, in some embodiments, the memory 1002 may store instructions for performing a method performed by a network device, such as the method illustrated in fig. 2. The processor 1001 may execute the instructions stored in the memory 1002 to perform the steps of the network device in the method shown in fig. 2 in combination with other hardware (e.g., the transceiver 1003), and the specific working process and beneficial effects can be referred to the description in the embodiment shown in fig. 2.

Fig. 11 is a block diagram of a terminal device according to an embodiment of the present application. The terminal device 1100 shown in fig. 11 includes: a processor 1101, a memory 1102, and a transceiver 1103.

The processor 1101, memory 1102, and transceiver 1103 communicate with each other, passing control and/or data signals, over the internal connection paths.

It is understood that although not shown, terminal apparatus 1100 may also include other devices, such as input devices, output devices, batteries, and the like.

Optionally, in some embodiments, the memory 1102 may store instructions for performing the method performed by the terminal device in the method illustrated in fig. 2. The processor 1101 may execute the instructions stored in the memory 1102 to complete the steps performed by the terminal device in the method shown in fig. 2 in combination with other hardware (e.g., the transceiver 1103), and specific working procedures and beneficial effects may refer to the description in the embodiment shown in fig. 2.

The method disclosed in the embodiments of the present application may be applied to a processor, or may be implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a Random Access Memory (RAM), a flash memory, a read-only memory (ROM), a programmable ROM, an electrically erasable programmable memory, a register, or other storage media that are well known in the art. The storage medium is located in a memory, and a processor reads instructions in the memory and combines hardware thereof to complete the steps of the method.

It can be understood that, when the embodiments of the present application are applied to a network device chip, the network device chip implements the functions of the network device in the above method embodiments. The network device chip sends the first control channel (or the first indication information), the second control channel and the downlink data to other modules (such as a radio frequency module or an antenna) in the network device. The first control channel (or the first indication information), the second control channel and the downlink data are sent to the terminal device via other modules of the network device.

When the embodiment of the application is applied to the terminal device chip, the terminal device chip realizes the functions of the terminal device in the embodiment of the method. The terminal device chip receives the first control channel (or the first indication information), the second control channel and the downlink data from other modules (such as a radio frequency module or an antenna) in the terminal device, and the first control channel (or the first indication information), the second control channel and the downlink data are sent to the terminal device by the network device.

It should be understood that, in the embodiment of the present application, the numbers "first" and "second" … are introduced only for distinguishing different objects, for example, distinguishing different "indication information", or distinguishing different "resource areas", and do not limit the scope of the embodiment of the present application.

It should also be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions described in the embodiments of the present application are wholly or partially followed. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium, an optical medium, a semiconductor medium, or the like. For example, various media that can store program codes, such as floppy disks, magnetic tapes, U-disks, removable hard disks, Solid State Disks (SSDs), Read Only Memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, etc.

In the several embodiments provided in the embodiments of the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application, which essentially or partly contribute to the prior art, may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application.

The above description is only a specific implementation of the embodiments of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the embodiments of the present application, and all the changes or substitutions should be covered by the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of transmitting information, comprising:

the network equipment determines whether resource preemption exists;

2. The method of claim 1, wherein the first control channel further comprises the second indication information.

3. The method of claim 1, wherein upon determining that there is resource preemption, the method further comprises:

4. The method according to any one of claims 1 to 3, further comprising:

the network device configures the first resource region through signaling.

5. A method of transmitting information, comprising:

6. The method of claim 5, wherein the first control channel further comprises the second indication information.

7. The method of claim 5, further comprising:

8. The method according to any of claims 5 to 7, wherein the first resource zone is configured by a network device through signaling.

9. A network device, comprising:

a determining module, configured to determine whether resource preemption exists;

a sending module, configured to send a first control channel in a first resource region when it is determined that resource preemption exists, where the first control channel includes first indication information, and the first indication information is used to indicate a second resource region, where the second resource region is a resource for which resource preemption occurs; the sending module is further configured to send a second control channel in a third resource region when it is determined that there is no resource preemption, where the second control channel includes second indication information, the second indication information is not used to indicate the second resource region, and the third resource region is different from the first resource region.

10. The network device of claim 9, wherein the first control channel further comprises the second indication information.

11. The network device of claim 9, wherein the sending module is further configured to:

transmitting the second control channel in the first resource region.

12. The network device of any of claims 9 to 11, wherein the network device further comprises:

a configuration module configured to configure the first resource region through signaling.

13. A terminal device, comprising:

a detection module, configured to detect the second control channel in the third resource region;

an obtaining module, configured to obtain second indication information in the second control channel when the terminal device detects the second control channel in the third resource region, where the second indication information is not used to indicate a second resource region, and the second resource region is a resource in which resource preemption occurs;

the detection module is further configured to detect a first control channel on a first resource region when the terminal device does not detect the second control channel on the third resource region;

the obtaining module is further configured to obtain first indication information in a first control channel when the terminal device detects the first control channel on the first resource region, where the first indication information is used to indicate the second resource region.

14. The terminal device of claim 13, wherein the first control channel further comprises the second indication information.

15. The terminal device of claim 13, wherein the detection module is further configured to:

detecting the second control channel in the first resource region.

16. The terminal device according to any of claims 13 to 15, wherein the first resource zone is configured by a network device through signaling.