CN111182636A

CN111182636A - Downlink control information detection method, network side equipment and terminal equipment

Info

Publication number: CN111182636A
Application number: CN201910028420.3A
Authority: CN
Inventors: 郤伟; 孙鹏; 潘学明
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2020-05-19
Anticipated expiration: 2039-01-11
Also published as: CN111182636B

Abstract

The invention provides a downlink control information detection method, network side equipment and terminal equipment, wherein the method comprises the following steps: sending target parameters to a terminal device, wherein the target parameters are used for the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET). The downlink control information detection method provided by the invention can improve the flexibility of DCI detection.

Description

Downlink control information detection method, network side equipment and terminal equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a downlink control information detection method, a network side device, and a terminal device.

Background

As an enhancement of Multiple Input Multiple Output (MIMO) technology, the third Generation Partnership Project (3 GPP) proposes Multiple Transmission and Reception Point (TRP) or Multiple antenna Panel (i.e., Multi-Panel) Transmission technology, that is, Multiple TRPs can transmit the same or different data streams to the same User Equipment (UE) (also referred to as terminal Equipment), so as to improve reliability and effectiveness of Transmission.

In future mobile communication systems, for example, in a New Radio (NR) system of a fifth Generation (5th-Generation, 5G), Downlink Control Information (DCI) is transmitted as a payload on a PDCCH. The Set of candidate resources for PDCCH transmission is called a Control Resource Set (CORESET). Each PDCCH is transmitted on a number of consecutive Control Channel Elements (CCEs) at an Aggregation Level (AL). Where the set of candidate PDCCHs is referred to as a Search Space (SS), the aggregation level may be equal to 1, 2, 4, 8, or 16.

For a UE, it monitors the PDCCH from one or more TRPs configured for it, and performs blind detection on potential DCI, thereby obtaining control information. Specifically, the DCI may include at least one of a downlink scheduling assignment, an uplink scheduling grant, a backfill indication, a power control indication, and the like. However, the protocol limits the upper limit of the number of blind detections in consideration of the complexity of blind detections on the UE side. For example, when the sub-carrier bandwidth is 15/30/60/120kHz, the maximum blind detection times upper limit can be 44/36/22/20 respectively.

However, in the prior art, there is no relevant solution for how to perform DCI detection in the presence of at least one carrier configured with multiple CORESET (e.g., supporting multiple TRP transmission or high-Reliable Low Latency Communication (URLLC) transmission, etc.).

Disclosure of Invention

The embodiment of the invention provides a downlink control information detection method, network side equipment and terminal equipment, and aims to provide a DCI detection mode under the condition that at least one carrier is configured with a plurality of CORESETs.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a method for detecting downlink control information, which is applied to a network side device, and the method includes:

sending target parameters to a terminal device, wherein the target parameters are used for the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET).

In a second aspect, an embodiment of the present invention further provides a method for detecting downlink control information, which is applied to a terminal device, and the method includes:

receiving target parameters from a network side device, wherein the target parameters are used for the terminal device to be in C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET).

In a third aspect, an embodiment of the present invention further provides a network side device. The network side device includes:

a sending module, configured to send a target parameter to a terminal device, where the target parameter is used for the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET).

In a fourth aspect, an embodiment of the present invention further provides a terminal device. The terminal device includes:

a receiving module, configured to receive a target parameter from a network-side device, where the target parameter is used for the terminal device to perform C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET).

In a fifth aspect, an embodiment of the present invention further provides a network-side device, which includes a processor, a memory, and a computer program that is stored in the memory and is executable on the processor, and when the computer program is executed by the processor, the method for detecting downlink control information provided in the first aspect is implemented.

In a sixth aspect, an embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements the steps of the downlink control information detection method provided in the second aspect.

In a seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements the steps of the downlink control information detection method provided in the first aspect, or implements the steps of the downlink control information detection method provided in the second aspect.

In the embodiment of the invention, the terminal equipment is sent to the terminal equipment at the step C through the network side equipment₁The target parameters of the DCI detection are carried out on the carriers, so that the terminal equipment can carry out the DCI detection based on the target parameters, a DCI detection mode is specified under the condition that at least one carrier is configured with a plurality of CORESETs, and the flexibility of the DCI detection can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a block diagram of a network system to which an embodiment of the present invention is applicable;

fig. 2 is a flowchart of a method for detecting downlink control information according to an embodiment of the present invention;

fig. 3 is a flowchart of a method for detecting downlink control information according to another embodiment of the present invention;

fig. 4 is a flowchart of a downlink control information detection method according to another embodiment of the present invention;

fig. 5 is a schematic diagram of a set configured for a carrier according to an embodiment of the present invention;

fig. 6 is a structural diagram of a network-side device according to an embodiment of the present invention;

fig. 7 is a structural diagram of a terminal device provided in an embodiment of the present invention;

fig. 8 is a block diagram of a network side device according to another embodiment of the present invention;

fig. 9 is a block diagram of a terminal device according to still another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be implemented, for example, in a sequence other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B and/or C, means that 7 cases are included that include a alone, B alone, C alone, and both a and B, B and C, a and C, and A, B and C.

For ease of understanding, some of the matters involved in the embodiments of the present invention are described below:

multiple Transmission Reception Point (TRP) Transmission: the current multiple TRP transmission schemes are mainly divided into two main categories: a single Physical Downlink Control Channel (PDCCH) and multiple PDCCHs. For a single PDCCH, multiple TRPs may transmit the same or different data streams on the same time-frequency resource to the same UE. For multiple PDCCHs, multiple TRPs may transmit the same or different data streams to the same UE on the same or different time-frequency resources.

Carrier Aggregation (CA): a terminal device supporting a carrier aggregation technique may receive data on multiple carriers (CCs) or multiple cells simultaneously, thereby obtaining a faster data transmission rate. It should be noted that, in the embodiment of the present invention, a CC and a cell are not distinguished.

The embodiment of the invention provides a downlink control information detection method. Referring to fig. 1, fig. 1 is a structural diagram of a network system to which an embodiment of the present invention is applicable, and as shown in fig. 1, the network system includes a terminal Device 11 and a network-side Device 12, where the terminal Device 11 may be a user-side Device such as a mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a laptop Computer (laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and it should be noted that a specific type of the terminal Device 11 is not limited in the embodiment of the present invention. The network side device 12 may be a base station, for example: macro station, LTE eNB, 5G NR NB, gNB, etc.; the network side device 12 may also be a small station, such as a Low Power Node (LPN) pico, femto, or the network side device 12 may be an Access Point (AP); the base station may also be a network node composed of a Central Unit (CU) together with a plurality of TRPs whose management is and is controlled. It should be noted that the specific type of the network-side device 12 is not limited in the embodiment of the present invention.

In this embodiment, the network side device 12 may send the target parameter to the terminal device 11, where the target parameter may be used for the terminal device 11 at C₁Downlink Control Information (DCI) detection is performed on each carrier. C above₁The individual carrier may be a carrier actually configured for the terminal device by the network side device, C₁And may be any positive integer.

Further, the above-mentioned C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET). For example, in a scenario that a terminal device supports multiple TRP transmission or high-reliability Low Latency Communication (URLLC) transmission, etc., at least two CORESET may be configured for at least one carrier.

The number of sets of target parameters may be one set or at least two sets. Each set of target parameters may include one or at least two parameters, for example, at least one of an upper limit value of blind detection times per carrier in a unit time, an upper limit value of number of non-overlapping Control Channel Elements (CCEs) for performing channel estimation on each carrier in a unit time, an upper limit value of number of CORESET detected on each carrier in a unit time, identification information of the first carrier, and the like.

Wherein the first carrier may be C as described above₁One or more of the carriers, e.g., may be C₁The carrier supporting multiple TRP transmission or the carrier supporting URLLC transmission in the carrier.

The unit time may be, but is not limited to, one of one slot, one subframe, and at least one symbol, etc.

Optionally, before the network-side device 12 sends the target parameter, the terminal device 11 may send DCI detection capability information to the network-side device 12, so that the network-side device 12 may configure the target parameter based on the DCI detection capability information.

Optionally, the DCI detection capability information may include at least one of the following: terminal device 11An upper limit value of the number of CORESETs which can be detected on each carrier in unit time; at C₁Less than C_maxAt least one of an upper limit value of the second parameter and an upper limit value of the third parameter; search space periods that can be supported by the terminal device 11.

Wherein, the above-mentioned C_maxThe maximum number of carriers that can be supported by the terminal device 11.

The second parameter may be that the terminal device 11 can be paired with C in unit time₁The number of times blind detection is performed for each carrier may include, for example, performing blind detection for C in a unit time₁The total times of blind detection of each carrier wave is limited and the C is detected in unit time₁At least one of the upper limit value of the blind detection times of each carrier in the individual carriers.

The third parameter may be that the terminal device 11 can control the current time for the terminal device C₁The number of non-overlapping CCEs for channel estimation on a carrier may include, for example, the C₁Non-overlapping total CCE number upper limit value for channel estimation of each carrier and C for each carrier in unit time₁At least one of a non-overlapping CCE number upper limit value and the like for channel estimation for each of the carriers.

After receiving the target parameter from the network-side device 12, the terminal device 11 may perform DCI detection based on the target parameter. It should be noted that the terminal device 11 may perform DCI detection without considering the target parameter, which is not limited in this embodiment.

The embodiment of the invention provides a downlink control information detection method which is applied to network side equipment. Referring to fig. 2, fig. 2 is a flowchart of a method for detecting downlink control information according to an embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:

step 201, sending target parameters to a terminal device, wherein the target parameters are used for the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET).

In this embodiment, the above-mentioned C₁The individual carrier may be a carrier actually configured for the terminal device by the network side device, C₁And may be any positive integer. Further, the above-mentioned C₁At least two CORESET are configured on at least one carrier in the carriers. For example, in a scenario that the terminal device supports multiple TRP transmission or URLLC transmission, etc., at least two CORESET may be configured for at least one carrier.

The number of sets of target parameters may be one set or at least two sets. In practical application, the network device may be C₁Each carrier in each carrier is respectively configured with a group of target parameters, and can also be C₁Only one set of target parameters is configured for each carrier, which is not limited in this embodiment.

Each set of target parameters may include one or at least two parameters, and for example, may include at least one of an upper limit value of the number of blind detections on each carrier per unit time, an upper limit value of the number of non-overlapping CCEs for channel estimation on each carrier per unit time, an upper limit value of the number of CORESET detected on each carrier per unit time, identification information of the first carrier, and the like.

Wherein the first carrier may be C as described above₁One or more of the plurality of carriers. For example, it may be C₁The carrier supporting multiple TRP transmission or the carrier supporting URLLC transmission in the carrier.

It should be noted that the unit time can be set reasonably according to actual requirements. For example, the unit time may be, but is not limited to, one of one slot, one subframe, at least one symbol, and the like.

Optionally, the network side device may transmit the target parameter through Radio Resource Control (RRC) or Media Access Control-Control Element (MAC-CE).

In the method for detecting downlink control information according to the embodiment of the present invention, a target parameter is sent to a terminal device, where the target parameter is used for the terminal device to perform DCI detection on downlink control information on C1 carriers, C1 is a positive integer, and at least two control resource sets CORESET are configured on at least one carrier among the C1 carriers, so that the terminal device can perform DCI detection based on the target parameter.

Optionally, C is₁C configured by individual carrier and network side equipment₁The group target parameters are in one-to-one correspondence;

or

Said C is₁Each carrier corresponds to the same group of target parameters configured by the network side equipment.

In an embodiment, the network side device may be C₁Individual carrier configuration C₁Group target parameters, wherein C₁A carrier wave and C₁There is a one-to-one correspondence between the group target parameters. For example, when C₁When the value is 2, the carrier wave CC₁Corresponding to the target parameter a1, the carrier CC₂Corresponding to the target parameter a 2.

It should be noted that the target parameter corresponding to each carrier may be used for DCI detection for the carrier. For example, the target parameter a1 is used for the carrier CC₁The DCI detection is carried out, and the target parameter a2 is used for the carrier CC₂And performing DCI detection.

Further, the above-mentioned C₁The group target parameters may be the same or different, and this embodiment does not limit this.

In this example, C₁A carrier wave and C₁The group target parameters are in one-to-one correspondence, so that the flexibility and the accuracy of DCI detection on the carrier waves can be improved.

In another embodiment, the network side device may be C₁Only one set of target parameters is configured for each carrier, C₁Each carrier corresponds to the set of target parameters. For example, when C₁When the value is 2, the carrier wave CC₁And carrier CC₂Correspond to the target parameter a 1.

In this example, C₁The carriers all correspond to the same group of target parameters, so that resources can be saved.

Optionally, the target parameter may include at least one of the following parameters: the upper limit value of the first parameter corresponding to each carrier and the identification information of the first carrier;

wherein the first parameter may include at least one of: blind detection times in unit time, number of non-overlapping CCEs for channel estimation in unit time, and number of CORESET detected in unit time; wherein the first carrier is the C₁At least one of the individual carriers.

In this embodiment, each carrier is C₁Each of the individual carriers. The upper limit value of the first parameter corresponding to each carrier may include, but is not limited to, one or at least two of an upper limit value of the number of blind detections on each carrier per unit time, an upper limit value of the number of non-overlapping CCEs for performing channel estimation on each carrier per unit time, and an upper limit value of the number of CORESET detected on each carrier per unit time. The upper limit of the blind detection times per carrier in the unit time may be the maximum blind detection times per carrier in the unit time.

The first carrier may be C₁One or more of the multiple carriers may be, for example, a carrier supporting multiple TRP transmission among C1 carriers, or a carrier supporting URLLC transmission, etc.

Optionally, the identification information of each carrier in the first carriers may be stored in an identification list, and the identification list may be sent to the terminal device.

The unit time may be set reasonably according to actual requirements, and may be, for example, but not limited to, one of a slot, a subframe, at least one symbol, and the like.

In this embodiment, the target parameter includes at least one of the upper limit value of the first parameter corresponding to each carrier and the identification information of the first carrier, which may improve accuracy of DCI detection control.

Optionally, the upper limit value of the first parameter is an upper limit value determined based on a subcarrier bandwidth.

In this embodiment, the upper limit value of the first parameter is related to the subcarrier bandwidth. For example, the upper limit value of the first parameter is smaller than the upper limit value corresponding to the bandwidth of the corresponding subcarrier, or is an integer multiple of the upper limit value corresponding to the bandwidth of the corresponding subcarrier.

For example, when the subcarrier bandwidth is 15kHz, the upper limit of the number of blind detection times corresponding to the subcarrier bandwidth may be 44, and the upper limit of the number of non-overlapping CCEs for channel estimation corresponding to the subcarrier bandwidth may be 44; when the subcarrier bandwidth is 30kHz, the upper limit of the number of blind detection times corresponding to the subcarrier bandwidth may be 36, and the upper limit of the number of non-overlapping CCEs for channel estimation corresponding to the subcarrier bandwidth may be 56; when the subcarrier bandwidth is 60kHz, the upper limit of the number of blind detection times corresponding to the subcarrier bandwidth may be 22, and the upper limit of the number of non-overlapping CCEs for channel estimation corresponding to the subcarrier bandwidth may be 48; when the subcarrier bandwidth is 120kHz, the upper limit of the number of blind detections for the subcarrier bandwidth may be 20, and the upper limit of the number of non-overlapping CCEs for channel estimation for the subcarrier bandwidth may be 32.

Optionally, the upper limit value of the first parameter is smaller than the upper limit value corresponding to the subcarrier bandwidth corresponding to the first parameter;

or

The upper limit value of the first parameter is integral multiple of the upper limit value corresponding to the corresponding subcarrier bandwidth.

In one embodiment, the upper limit value of the first parameter is smaller than the upper limit value corresponding to the subcarrier bandwidth corresponding to the first parameter. E.g. in-carrier CC per unit time₁The upper limit value of the blind detection times is less than the carrier CC₁Upper limit value corresponding to corresponding sub-carrier bandwidth, carrier CC in unit time₂The upper limit value of the blind detection times is less than the carrier CC₂And the upper limit value corresponds to the corresponding subcarrier bandwidth.

In another embodiment, the upper limit value of the first parameter is equal to an integer multiple of the upper limit value corresponding to the subcarrier bandwidth to which it corresponds. E.g. in-carrier CC per unit time₁The upper limit value of the blind detection times is equal to the carrier CC₁Integral multiple of upper limit value corresponding to corresponding sub-carrier bandwidth, carrier CC in unit time₂The upper limit value of the blind detection times is equal to the carrier CC₂Integral multiple of the upper limit value corresponding to the corresponding subcarrier bandwidth. Wherein, the integer can be reasonably set according to actual requirements.

Carrier CC as follows₁The upper limit value of the corresponding first parameter is described as an example, wherein the carrier CC₁May be the above-mentioned C₁Any carrier of the individual carriers:

when carrier CC₁Within a time slot, carrier CC at a corresponding sub-carrier bandwidth of 15kHz₁The upper limit of the number of blind detections may be less than 44 or an integer multiple of 44, and the carrier CC may be within one time slot₁The upper limit value of the number of non-overlapping CCEs for channel estimation can be smaller than 56 or an integer multiple of 56;

when carrier CC₁Within a time slot, carrier CC at a corresponding sub-carrier bandwidth of 30kHz₁The upper limit value of the blind detection times can be less than 36 or an integer multiple of 36, and the carrier CC is in one time slot₁The upper limit value of the number of non-overlapping CCEs for channel estimation can be smaller than 56 or an integer multiple of 56;

when carrier CC₁Corresponding to a sub-carrier bandwidth of 60kHz, within a time slot carrier CC₁The upper limit of the number of blind detections may be smaller than 22 or an integer multiple of 22, and the carrier CC in a time slot is₁The upper limit value of the number of non-overlapping CCEs for channel estimation can be less than 48 or an integer multiple of 48;

when carrier CC₁Within a time slot, carrier CC at a corresponding sub-carrier bandwidth of 120kHz₁The upper limit value of the blind detection times can be less than 20 or an integral multiple of 20, and the carrier CC is in one time slot₁The upper limit value of the number of non-overlapping CCEs on which channel estimation is performed may be less than 32 or an integer multiple of 32.

Optionally, C is₁The sum of the upper limit values of the first parameters of the carriers is less than or equal to C of the upper limit value corresponding to the corresponding subcarrier bandwidth_maxThe production process of the composite material is as follows,C_maxthe maximum number of carriers that can be supported by the terminal device.

In this embodiment, the bandwidths of the subcarriers corresponding to the C1 carriers may all be the same. In a case that the bandwidths of the subcarriers corresponding to the C1 carriers are different, one of the bandwidths of the subcarriers may be selected as the bandwidth of the subcarrier corresponding to the C1 carriers, and a specific selection manner is not limited in this embodiment.

For example, the above-mentioned C₁The individual carriers include carrier CCs₁And carrier CC₂Wherein, the carrier wave CC₁And carrier CC₂The bandwidth of the corresponding sub-carrier is 15kHz, the carrier CC is arranged in one time slot₁Upper limit value of blind detection times and one-time-slot internal carrier CC₂The sum of the upper limit values of the blind detection times is less than 44 × C_max(ii) a One time slot inner carrier CC₁Upper limit value of non-overlapping CCE number for channel estimation and one-time-slot internal carrier CC₂The sum of the upper limit values of the number of non-overlapping CCEs for performing channel estimation is less than 56 × C_max。

Optionally, when the upper limit value of the first parameter corresponding to the second carrier is not equal to the default upper limit value, the target parameter includes the upper limit value of the first parameter corresponding to the second carrier; the second carrier is the carrier C₁At least one carrier of the plurality of carriers;

the first parameter includes at least one of: the number of blind detections in unit time, the number of non-overlapping CCEs for channel estimation in unit time, and the number of CORESET detected in unit time.

In this embodiment, the default upper limit value may be predefined by a protocol or configured by the network side. The default upper limit may include at least one of a default upper limit of the number of blind detections on one carrier per unit time, a default upper limit of the number of non-overlapping CCEs for channel estimation on one carrier per unit time, a default upper limit of the number of CORESET detected on one carrier per unit time, and the like. The second carrier may be C₁Any one or more of the multiple carriers.

Specifically, inC₁When the upper limit value of the first parameter corresponding to a certain carrier in the carriers is not equal to the default upper limit value, the network side device may configure the upper limit value of the first parameter corresponding to the carrier to the terminal device, at C₁When the upper limit value of the first parameter corresponding to a certain carrier in the individual carriers is equal to the default upper limit value, the network side device may not configure the upper limit value of the first parameter corresponding to the carrier to the terminal device.

In practical application, for CCs for which the upper limit of the blind detection times is equal to the default upper limit of the blind detection times, the network side may omit the configuration of the upper limit of the blind detection times, and only CCs for which the upper limit of the blind detection times is different from the default of the blind detection times are configured.

Similarly, for CCs for which the upper limit of the number of non-overlapping CCEs to be channel estimated is equal to the default upper limit of the number of non-overlapping CCEs to be channel estimated, the network side may omit the configuration of the upper limit of the number of non-overlapping CCEs to be channel estimated, and only CCs for which the upper limit of the number of non-overlapping CCEs to be channel estimated is different from the default upper limit are configured.

Similarly, for CCs for which the upper limit value of the quantity of CORESET to be detected is equal to the default upper limit value of the quantity of CORESET to be detected, the network side may omit the configuration of the upper limit value of the quantity of CORESET to be detected, and only the CCs for which the upper limit value of the quantity of CORESET to be detected is different from the default upper limit value are configured.

In this embodiment, only carriers with upper limit values of the corresponding first parameters not equal to the default upper limit value are configured, so that resources can be saved.

Optionally, the default upper limit value is configured on the network side or predefined in a protocol.

Optionally, the unit time includes one of: one slot, one subframe, one symbol, at least two symbols.

Optionally, the first carrier is the carrier C₁A carrier supporting multiple TRP transmission in the carriers;

or

The first carrier is the carrier C₁The carrier supporting URLLC transmission in each carrier.

Optionally, the method may further include:

receiving DCI detection capability information from the terminal device;

wherein the target parameter is determined based on the DCI detection capability information.

In this embodiment, the DCI detection capability information may include, but is not limited to, at least one of the following: the maximum number of carriers that the terminal device can support, an upper limit value of the number of times that the terminal device can perform blind detection on each carrier in unit time, an upper limit value of the number of non-overlapping CCEs that the terminal device can perform channel estimation on each carrier in unit time, an upper limit value of the number of CORESET that the terminal device can detect on each carrier in unit time, and a search space period that the terminal device can support, the terminal device can perform blind detection on C in unit time₁An upper limit value of the number of times of blind detection of each carrier, and the terminal device can perform the detection of C in a unit time₁An upper limit value of the number of non-overlapping CCEs for channel estimation of each carrier, and the like.

In practical applications, after receiving the DCI detection capability information, the network side device may determine a target parameter based on the DCI detection capability information. It should be noted that, for how the network side device specifically determines the target parameter based on the DCI detection capability information, this embodiment does not limit this.

The present embodiment determines the target parameter based on the DCI detection capability information, and may improve accuracy of DCI detection control.

Optionally, the DCI detection capability information includes at least one of:

the upper limit value of the CORESET quantity which can be detected by the terminal equipment on each carrier in unit time;

at C₁Less than C_maxIn case of (2), at least one of an upper limit value of a second parameter and an upper limit value of a third parameter, wherein the second parameter is C for a unit time that the terminal device can be paired with₁The number of times of blind detection executed by each carrier, and the third parameter is set for the terminalCan be used for C in unit time₁Number of non-overlapping CCEs, C, for channel estimation on a carrier_maxThe maximum number of carriers which can be supported by the terminal equipment;

the search space period that the terminal device can support.

In this embodiment, the number C of carriers actually configured in the network side device₁Less than C_maxIn this case, at least one of the upper limit value of the second parameter and the upper limit value of the third parameter may be reported to the network side device.

Specifically, the second parameter may be that the terminal device is capable of comparing C with C in unit time₁The number of times that each carrier performs blind detection. For example, the second parameter may include the value of C per unit time₁The total times of blind detection of each carrier wave is limited and the C is detected in unit time₁At least one of a number of times of blind detection per carrier and the like.

Optionally, the upper limit value of the second parameter may include at least one of:

for the C in unit time₁Total number upper limit value X, C for blind detection of individual carrier₁*N<X<＝C_max*N；

For the C in unit time₁An upper limit value Y of the number of times each carrier of the individual carriers is blindly detected,

wherein, N is an upper limit value of the number of times that the terminal device can perform blind detection on each carrier in a unit time, and M is an upper limit value of the number of non-overlapping CCEs that the terminal device can perform channel estimation on each carrier in the unit time.

It should be noted that, in the following description,

a lower rounding operator is represented. That is to say

Represents X/C₁The lower rounded value of (d).

Specifically, the third parameter may be that the terminal device is capable of comparing C with C in unit time₁The number of non-overlapping CCEs for channel estimation per carrier. For example, the third parameter may include the value of C per unit time₁Non-overlapping total CCE number upper limit value for channel estimation of each carrier and C for each carrier in unit time₁At least one of a non-overlapping CCE number upper limit value and the like for channel estimation per carrier.

Optionally, the upper limit value of the third parameter includes at least one of:

for the C in unit time₁Non-overlapping total CCE number upper limit value K, C for channel estimation of each carrier₁*M<K<＝C_max*M；

For the C in unit time₁An upper limit value L of the number of non-overlapping CCEs for channel estimation per one of the carriers,

In this embodiment, the above-mentioned C is measured in unit time₁The upper limit value K of the non-overlapping total CCE quantity for channel estimation of each carrier, namely C is measured in unit time₁At most K non-overlapping CCEs on a carrier are used for channel estimation.

It should be noted that, in the following description,

a lower rounding operator is represented. That is to say

Represents K/C₁Under (2) isAnd (6) taking a whole value.

It should be noted that N and M may both relate to the subcarrier bandwidth. For example, when the subcarrier bandwidth is 15kHz, N is 44, and M is 56; when the sub-carrier bandwidth is respectively 30kHz, N is 36, and M is 56; when the sub-carrier bandwidth is 60kHz respectively, N is 22, and M is 48; when the sub-carrier bandwidths are 120kHz, N is 20, and M is 32, respectively.

In practical application, when the number of carriers actually configured by the network side device for the terminal device is smaller than the maximum number of carriers that can be supported by the terminal device, the terminal device may perform at least one of the following operations in a unit time:

to C₁Each CC makes a maximum of X blind detection attempts;

to C₁Each CC of the plurality of CCs makes a maximum of Y blind detection attempts.

To C₁Performing channel estimation on at most K non-overlapping CCEs by using the CCs;

to C₁Each of the multiple CCs performs channel estimation for up to L non-overlapping CCEs.

The embodiment of the invention also provides a downlink control information detection method which is applied to the terminal equipment. Referring to fig. 3, fig. 3 is a flowchart of a method for detecting downlink control information according to another embodiment of the present invention, as shown in fig. 3, including the following steps:

step 301, receiving target parameters from a network side device, wherein the target parameters are used for the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET).

It should be noted that the unit time can be set reasonably according to actual requirements. For example, the unit time may be, but is not limited to, one of one slot, one subframe, and at least one symbol, etc.

Optionally, the terminal device may receive the target parameter through radio resource control RRC or MAC-CE.

In the method for detecting downlink control information according to the embodiment of the present invention, a target parameter is received from a network side device, where the target parameter is used for the terminal device to perform DCI detection on C1 carriers, C1 is a positive integer, and at least two control resource sets CORESET are configured on at least one carrier among the C1 carriers, so that the terminal device can perform DCI detection based on the target parameter.

Optionally, the C1 carriers correspond to C1 sets of target parameters configured by the network side device one to one;

or

The C1 carriers all correspond to the same set of target parameters configured by the network side device.

Optionally, the target parameter includes at least one of the following parameters: the upper limit value of the first parameter corresponding to each carrier and the identification information of the first carrier;

wherein the first parameter comprises at least one of: blind detection times in unit time, the number of non-overlapping Control Channel Elements (CCE) for channel estimation in unit time, and the number of CORESET detected in unit time; wherein the first carrier is the C₁At least one of the individual carriers.

This implementationIn one example, each carrier is C₁Each of the individual carriers. The upper limit value of the first parameter corresponding to each carrier may include, but is not limited to, one or at least two of an upper limit value of the number of blind detections on each carrier per unit time, an upper limit value of the number of non-overlapping CCEs for performing channel estimation on each carrier per unit time, and an upper limit value of the number of CORESET detected on each carrier per unit time. The upper limit of the blind detection times per carrier in the unit time may be the maximum blind detection times per carrier in the unit time.

Optionally, the terminal device may receive, from the network-side device, an identification list in which the identification information of the first carrier is stored.

For example, when the subcarrier bandwidth is 15kHz, the upper limit of the number of blind detection times corresponding to the subcarrier bandwidth may be 44, and the upper limit of the number of non-overlapping CCEs for channel estimation corresponding to the subcarrier bandwidth may be 44;

when the subcarrier bandwidth is 30kHz, the upper limit of the number of blind detection times corresponding to the subcarrier bandwidth may be 36, and the upper limit of the number of non-overlapping CCEs for channel estimation corresponding to the subcarrier bandwidth may be 56;

when the subcarrier bandwidth is 60kHz, the upper limit of the number of blind detection times corresponding to the subcarrier bandwidth may be 22, and the upper limit of the number of non-overlapping CCEs for channel estimation corresponding to the subcarrier bandwidth may be 48;

when the subcarrier bandwidth is 120kHz, the upper limit of the number of blind detections for the subcarrier bandwidth may be 20, and the upper limit of the number of non-overlapping CCEs for channel estimation for the subcarrier bandwidth may be 32.

or

Carrier CC as follows₁The upper limit value of the corresponding first parameter is described as an example, wherein the carrier CC₁May be the above-mentioned C₁One carrier waveAny carrier of (1):

Optionally, C is₁The sum of the upper limit values of the first parameters of the carriers is less than or equal to C of the upper limit value corresponding to the corresponding subcarrier bandwidth_maxX wherein, C_maxThe maximum number of carriers that can be supported by the terminal device.

For example, the above-mentioned C₁Each carrier comprising a carrierWave CC₁And carrier CC₂Wherein, the carrier wave CC₁And carrier CC₂The bandwidth of the corresponding sub-carrier is 15kHz, the carrier CC is arranged in one time slot₁Upper limit value of blind detection times and one-time-slot internal carrier CC₂The sum of the upper limit values of the blind detection times is less than 44 × C_max(ii) a One time slot inner carrier CC₁Upper limit value of non-overlapping CCE number for channel estimation and one-time-slot internal carrier CC₂The sum of the upper limit values of the number of non-overlapping CCEs for performing channel estimation is less than 56 × C_max。

the first parameter includes at least one of: the number of blind detections in unit time, the number of non-overlapping Control Channel Elements (CCEs) for channel estimation in unit time, and the number of CORESET detections in unit time.

Specifically, in C₁When the upper limit value of the first parameter corresponding to a certain carrier in the carriers is not equal to the default upper limit value, the network side device may configure the upper limit value of the first parameter corresponding to the carrier to the terminal device, at C₁When the upper limit value of the first parameter corresponding to a certain carrier in the individual carriers is equal to the default upper limit value, the network side device may not configure the upper limit value of the first parameter corresponding to the carrier to the terminal device.

Optionally, the first carrier is the carrier C₁The carrier wave supports the transmission of multiple Transmission Receiving Points (TRP) in the carrier waves;

or

The first carrier is the carrier C₁The carrier supports the transmission of the URLLC.

Optionally, the method may further include:

sending DCI detection capability information to the network side equipment;

the target parameter is determined by the network side device based on the DCI detection capability information.

In this embodiment, the DCI detection capability information may include, but is not limited to, at least one of the following: the maximum number of carriers that the terminal device can support, and the number of times that the terminal device can perform blind detection on each carrier in unit timeAn upper limit value, an upper limit value of the number of non-overlapping CCEs which can be used by the terminal equipment for channel estimation on each carrier in unit time, an upper limit value of the number of CORESET which can be detected by the terminal equipment on each carrier in unit time, and a search space period which can be supported by the terminal equipment, wherein the terminal equipment can be used for detecting C in unit time₁An upper limit value of the number of times of blind detection of each carrier, and the terminal device can perform the detection of C in a unit time₁An upper limit value of the number of non-overlapping CCEs for channel estimation of each carrier, and the like.

In this embodiment, the network side device may determine the target parameter based on the DCI detection capability information by sending the DCI detection capability information to the network side device, so as to improve accuracy of DCI detection control.

Optionally, the DCI detection capability information includes at least one of:

at C₁Less than C_maxIn case of (2), at least one of an upper limit value of a second parameter and an upper limit value of a third parameter, wherein the second parameter is C for a unit time that the terminal device can be paired with₁The number of times of blind detection of each carrier is performed, and the third parameter is that the terminal equipment can perform blind detection on C in unit time₁Number of non-overlapping CCEs, C, for channel estimation on a carrier_maxThe maximum number of carriers which can be supported by the terminal equipment;

the search space period that the terminal device can support.

Specifically, the second parameter may be that the terminal device is capable of comparing C with C in unit time₁The number of times that each carrier performs blind detection. For example, the second parameter may include the value of C per unit time₁Personal loadUpper limit of total times of blind detection of wave and the sum of C in unit time₁At least one of a number of times of blind detection per carrier and the like.

to C₁Each CC makes a maximum of X blind detection attempts;

Optionally, the method may further include:

according to at least one item of DCI detection capability information and the target parameter of the terminal equipment, for the C₁And detecting the downlink control information by each carrier.

In this embodiment, after receiving the target parameter, the terminal device may pair C according to at least one of DCI detection capability information of the terminal device and the target parameter₁And carrying out DCI detection on the carriers.

The following is represented by C₁The individual carriers include carrier CCs₁And carrier CC₂For example, DCI detection according to target parameters is described:

if the target parameter includes the CC in the unit time₁Upper limit value a1 of blind detection times and carrier CC in unit time₂The upper limit value a2 of the blind detection times, the terminal device can be on the carrier CC in unit time₁A1 times of blind detection at most, the terminal device can be on the carrier CC in unit time₂A maximum of 2 blind tests were performed.

If the target parameter includes the CC in the unit time₁Upper limit value b1 of number of non-overlapping CCEs for channel estimation and carrier CC in unit time₂The upper limit value b2 of the number of non-overlapping CCEs for channel estimation is increased, the terminal equipment can be on the carrier CC in unit time₁The channel estimation is carried out on at most b1 CCEs, and the terminal equipment can be on the carrier CC in unit time₂The channel estimation is performed on a maximum of b2 CCEs.

If the target parameter includes the CC in the unit time₁Upper limit value c1 of the number of CORESET detected and the carrier CC in unit time₂The upper limit value c2 of the detected CORESET quantity is reached, and the terminal equipment can be in the carrier CC in unit time₁At most, c1 CORESET are detected, and the terminal equipment can be on the carrier CC in unit time₂A maximum of c2 CORESET were tested.

Optionally, the terminal device may further perform DCI detection according to the DCI detection capability information. For example, C may be present in a unit time₁Upper limit value of C on each carrier_maxBlind detection of N, in unit time C₁Upper pair of upper limit values of individual carriers is C_maxPerforming channel estimation on M non-overlapping CCEs (control channels) within unit time by C₁Upper pair of upper limit values of individual carriers is C_maxQ CORESET measurements were performed.

It should be noted that, the terminal device may also perform DCI detection by combining the DCI detection capability information and the target parameter. For example, for a first carrier indicated by the network side device, DCI detection is performed according to the DCI detection capability information.

In this embodiment, the C may be detected according to at least one of DCI detection capability information of the terminal device and the target parameter₁The downlink control information detection is carried out by each carrier, so that the flexibility of DCI detection can be improved.

Optionally, the C is detected according to at least one of DCI detection capability information of the terminal device and the target parameter₁The downlink control information detection is carried out by each carrier, and the downlink control information detection comprises the following steps:

according to the upper limit value of the fourth parameter, for C₁Detecting downlink control information by each carrier;

wherein the upper limit value of the fourth parameter comprises at least one of:

for the C in unit time₁Total times upper limit value R, R ═ C for blind detection of each carrier_max*N；

For the C in unit time₁Non-overlapping total CCE number upper limit value S, S ═ C for channel estimation of each carrier_max*M；

For the C in unit time₁The upper limit value T of the total CORESET number detected by each carrier wave, wherein T is C_max*Q；

Wherein, C_maxThe number of the maximum carriers that can be supported by the terminal device is N, which is an upper limit value of the number of times that the terminal device can perform blind detection on each carrier in a unit time, M is an upper limit value of the number of non-overlapping CCEs that the terminal device can perform channel estimation on each carrier in a unit time, and Q is an upper limit value of the number of CORESET that the terminal device can detect on each carrier in a unit time.

In this embodiment, the upper limit value of the fourth parameter may be determined according to DCI detectability information.

In practical application, the terminal device may detect DCI within a unit time period C₁Performing at most R times of blind detection on each carrier within unit time₁Performing channel estimation on at most S CCEs on each carrier within a unit timeC₁A maximum of T CORESET are detected on one carrier.

In this embodiment, C is measured according to the upper limit value of the fourth parameter₁The reliability of the DCI detection can be improved by carrying out the DCI detection on the multiple carriers.

according to the upper limit value of the fifth parameter, for C₁Detecting downlink control information by each carrier;

wherein the upper limit value of the fifth parameter comprises at least one of:

upper limit value of times of blind detection of target carrier in unit time

An upper limit value O of the number of non-overlapping CCEs for channel estimation for a target carrier per unit time,

a CORESET number upper limit value P for detecting the target carrier in unit time,

wherein J is the number of the target carriers, N is an upper limit value of the number of times that the terminal device can perform blind detection on each carrier in a unit time, M is an upper limit value of the number of non-overlapping CCEs that the terminal device can perform channel estimation on each carrier in a unit time, Q is an upper limit value of the number of CORESET that the terminal device can detect on each carrier in a unit time, and the target carrier is C₁At least one of the individual carriers.

In this embodiment, the upper limit value of the fifth parameter may be determined according to DCI detectability information. The target carrier wave can be reasonably set according to actual conditions.

It should be noted that, in the following description,

a lower rounding operator is represented. That is, the above

To represent

The lower rounded value of (d). As described above

To represent

The lower rounded value of (d). As described above

To represent

The rounded value of (c).

Optionally, the target carrier may be a first carrier indicated by the network side device, or the target carrier may be the carrier C₁The smallest or largest carrier is identified among the individual carriers.

In practice, for C₁For each target carrier in the multiple carriers, the terminal device may perform blind detection on the target carrier for up to I times in a unit time, perform channel estimation on up to O CCEs on the target carrier in the unit time, and perform detection on up to P CORESETs on the target carrier in the unit time.

Note that, for the above C₁The terminal equipment can perform blind detection on the carrier for at most N times in unit time, perform channel estimation on at most M CCEs (channel control elements) on the carrier in unit time, and perform channel estimation on at most Q CORESETs on the carrier in unit timeAnd (5) detecting the line.

In this embodiment, the terminal device applies the remaining DCI detection capability to the target carrier, so that the accuracy of DCI detection can be improved.

It should be noted that, in the embodiment of the present invention, DCI detection may be performed by combining the upper limit value of the fourth parameter and the upper limit value of the fifth parameter.

Optionally, in C₁Is equal to C_maxIn this case, the carriers configured on the network side may be target carriers. At this time, the terminal device may perform blind detection on each target carrier for at most N times in a unit time, perform channel estimation on at most M non-overlapping CCEs on each target carrier in a unit time, and perform detection on at most Q CORESET on each target carrier in a unit time.

Referring to fig. 4, fig. 4 is a flowchart of a downlink control information detection method according to another embodiment of the present invention. As shown in fig. 4, the method for detecting downlink control information according to the embodiment of the present invention includes the following steps:

step 401, the terminal device sends DCI detection capability information to the network side device.

In this step, the relevant content of the DCI detectability information may refer to the foregoing description, which is not described herein again.

Step 402, the network side device sends the target parameter to the terminal device.

In this step, the relevant content of the target parameter may refer to the foregoing description, which is not described herein again.

Step 403, the terminal device performs DCI detection.

In this step, the terminal device may perform DCI detection based on at least one of the upper limit value of the fourth parameter, the upper limit value of the fifth parameter, the target parameter, and the like.

It should be noted that the embodiment of the present invention may be applied to a scenario that supports multiple TRP transmission and carrier aggregation simultaneously, and implement the support of DCI detection on multiple TRP scenarios.

The following describes embodiments of the present invention with reference to examples:

example one:

the UE reports Carrier Aggregation (CA) supporting at most 4 carriers to the network side, and each CC in a time slot can perform DCI blind detection 44 times, and the network side configures 3 CCs for the UE, which are respectively denoted as CC_iAnd i is 1, 2 and 3. Wherein, CC₁、CC₂Each is provided with a CORESET, which is respectively marked as CORESET₁And CORESET₂；CC₃Is provided with two CORESETs, marked as CORESET_3,1And CORESET_3,2As shown in fig. 5. Meanwhile, the network side indicates the UE through signaling, and the target CC is CC₃。

Since the UE has a total number of blind detections of 44 × 4 (i.e. 176) in one timeslot, the UE can perform blind detection on the CC₁And CC₂The blind detection with the upper limit value of 44 is carried out in the last time slot (namely in CC)₁And CC₂Up to 44 blind detection signals per timeslot), in CC₃(i.e., target CC) is performed with a number of blind detections of 88 in the last time slot (i.e., in CC)₃Up to 88 blind detection signals per timeslot). That is, the set of target CORESET for the UE to finally perform DCI blind detection is { CORESET₁，CORESET₂，CORESET_3,1，CORESET_3,2}。

Example two:

UE reports CA supporting 4 CCs to network side, each CC in a time slot can carry out channel estimation on CCE with number upper limit value of 56, and the network side configures 3 CCs for the UE, which are respectively marked as CC_iAnd i is 1, 2 and 3. Wherein, CC₁、CC₂Each is provided with a CORESET, which is respectively marked as CORESET₁And CORESET₂；CC₃Is provided with two CORESETs, marked as CORESET_3,1And CORESET_3,2As shown in fig. 5. Meanwhile, the network side indicates the UE through signaling, and the target CC is CC₃。

Since the UE has a CCE channel estimation capability with an upper limit of 56 × 4 (i.e. 224) in one timeslot, the UE may be configured to perform channel estimation on CCs₁And CC₂The channel estimation of CCE with the upper limit value of 56 per time slot number is carried out in the upper partMeter (i.e. at CC)₁And CC₂All above, channel estimation on up to 56 CCEs per slot), on CC₃Channel estimation with an upper limit of 112 CCEs per slot number (i.e., on the CC) is performed on the target CC₃Up to 112 CCEs per slot for channel estimation). That is, the set of target CORESET for the UE to finally perform DCI blind detection is { CORESET₁，CORESET₂，CORESET_3,1，CORESET_3,2}。

Referring to fig. 6, fig. 6 is a structural diagram of a network side device according to an embodiment of the present invention. As shown in fig. 6, the network-side device 600 includes:

a sending module 601, configured to send a target parameter to a terminal device, where the target parameter is used for the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET).

or

Optionally, the network side device further includes:

a receiving module, configured to receive DCI detection capability information from the terminal device;

Optionally, the DCI detection capability information includes at least one of:

the search space period that the terminal device can support.

Optionally, the upper limit value of the second parameter includes at least one of:

The network side device 600 provided in the embodiment of the present invention can implement each process implemented by the network side device in the foregoing method embodiments, and is not described here again to avoid repetition.

The network side device 600 of the embodiment of the present invention, the sending module 601, is configured to send a target parameter to a terminal device, where the target parameter is used by the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET). The method for detecting the DCI under the condition that at least one carrier is configured with a plurality of CORESETs is specified, and the flexibility of the DCI detection can be improved.

Referring to fig. 7, fig. 7 is a structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 7, the terminal device 700 includes:

a receiving module 701, configured to receive a target parameter from a network side device, where the target parameter is used for the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET).

or

wherein the first parameter comprises at least one of: number of blind detections per unit time, non-overlapping control of channel estimation per unit timeThe number of CCE (channel control element), the number of CORESET (channel control element) detected in unit time; wherein the first carrier is the C₁At least one of the individual carriers.

or

Optionally, the terminal device further includes:

a sending module, configured to send DCI detection capability information to the network side device;

Optionally, the DCI detection capability information includes at least one of:

the search space period that the terminal device can support.

for the C in unit time₁Individual carrier wave advanceNon-overlapping total CCE number upper limit value K, C of row channel estimation₁*M<K<＝C_max*M；

Optionally, the terminal device further includes:

a detection module, configured to detect the DCI of the terminal device and at least one of the target parameters according to the DCI detection capability information of the terminal device₁And detecting the downlink control information by each carrier.

Optionally, the detection module is specifically configured to:

Wherein, C_maxThe maximum number of carriers that the terminal device can support, N is an upper limit value of the number of times that the terminal device can perform blind detection on each carrier in a unit time, and M is an upper limit value of the number of non-overlapping CCEs that the terminal device can perform channel estimation on each carrier in the unit timeQ is an upper limit value of the number of CORESET that the terminal device can detect on each carrier per unit time.

Optionally, the detection module is specifically configured to:

wherein the upper limit value of the fifth parameter comprises at least one of:

upper limit value of times of blind detection of target carrier in unit time

Optionally, the target carrier is a first carrier indicated by the network side device;

or

The target carrier is the carrier C₁The smallest or largest carrier is identified among the individual carriers.

The terminal device 700 provided in the embodiment of the present invention can implement each process implemented by the terminal device in the foregoing method embodiments, and for avoiding repetition, details are not described here again.

The terminal device 700 of the embodiment of the present invention, the receiving module 701 is configured to receive a target parameter from a network side device, where the target parameter is used for the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET). The method for detecting the DCI under the condition that at least one carrier is configured with a plurality of CORESETs is specified, and the flexibility of the DCI detection can be improved.

Referring to fig. 8, fig. 8 is a structural diagram of a network side device according to another embodiment of the present invention. As shown in fig. 8, the network-side device 800 includes: a processor 801, a memory 802, a bus interface 803, and a transceiver 804, wherein the processor 801, the memory 802, and the transceiver 804 are all connected to the bus interface 803.

In this embodiment of the present invention, the network side device 800 further includes: a computer program stored on the memory 802 and executable on the processor 801, the computer program when executed by the processor 801 implementing the steps of:

or

wherein the first parameter includesAt least one of: blind detection times in unit time, the number of non-overlapping Control Channel Elements (CCE) for channel estimation in unit time, and the number of CORESET detected in unit time; wherein the first carrier is the C₁At least one of the individual carriers.

or

The first carrier is the carrier C₁Support of high reliability low latency communications URLL in a single carrierC carrier of the transmission.

Optionally, the computer program, when executed by the processor 801, is further configured to:

receiving DCI detection capability information from the terminal device;

Optionally, the DCI detection capability information includes at least one of:

the search space period that the terminal device can support.

Fig. 9 is a structural diagram of another terminal device according to an embodiment of the present invention. Referring to fig. 9, the terminal device 900 includes, but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910, and a power supply 911. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 9 does not constitute a limitation of the terminal device, and that the terminal device may include more or fewer components than shown, or combine certain components, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

A radio frequency unit 901, configured to receive a target parameter from a network side device, where the target parameter is used for the terminal device at C₁Downlink control information DCI detection is carried out on each carrier wave, C₁Is a positive integer, C₁At least one carrier of the carriers is configured with at least two control resource sets (CORESET).

The embodiment of the invention is used for the terminal equipment to be in the state C by receiving₁Target parameter for downlink control information DCI detection on each carrier, so that terminal equipment can be based onThe target parameter is used for DCI detection, so that a DCI detection mode is specified under the condition that at least one carrier is configured with a plurality of CORESETs, and the flexibility of DCI detection can be improved.

or

Optionally, the radio frequency unit 901 is further configured to:

sending DCI detection capability information to the network side equipment;

Optionally, the DCI detection capability information includes at least one of:

the search space period that the terminal device can support.

for the C in unit time₁Individual carrier wave advanceUpper limit value X, C of total times of blind detection₁*N<X<＝C_max*N；

Optionally, the processor 910 is configured to:

Optionally, the processor 910 is further configured to:

wherein the upper limit value of the fifth parameter comprises at least one of:

upper limit value of times of blind detection of target carrier in unit time

wherein J is the number of the target carriers, N isThe upper limit of the number of times that the terminal equipment can perform blind detection on each carrier in unit time, M is the upper limit of the number of non-overlapping CCEs that the terminal equipment can perform channel estimation on each carrier in unit time, Q is the upper limit of the number of CORESET that the terminal equipment can detect on each carrier in unit time, and the target carrier is C₁At least one of the individual carriers.

or

It should be understood that, in the embodiment of the present invention, the radio frequency unit 901 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 910; in addition, the uplink data is transmitted to the base station. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 901 can also communicate with a network and other devices through a wireless communication system.

The terminal device provides wireless broadband internet access to the user through the network module 902, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 903 may convert audio data received by the radio frequency unit 901 or the network module 902 or stored in the memory 909 into an audio signal and output as sound. Also, the audio output unit 903 may also provide audio output related to a specific function performed by the terminal apparatus 900 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.

The input unit 904 is used to receive audio or video signals. The input Unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042, and the Graphics processor 9041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 906. The image frames processed by the graphic processor 9041 may be stored in the memory 909 (or other storage medium) or transmitted via the radio frequency unit 901 or the network module 902. The microphone 9042 can receive sounds and can process such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 901 in case of the phone call mode.

The terminal device 900 also includes at least one sensor 905, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 9061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 9061 and/or backlight when the terminal device 900 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 905 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described in detail herein.

The display unit 906 is used to display information input by the user or information provided to the user. The Display unit 906 may include a Display panel 9061, and the Display panel 9061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 907 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 9071 (e.g., operations by a user on or near the touch panel 9071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 9071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 910, receives a command from the processor 910, and executes the command. In addition, the touch panel 9071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 907 may include other input devices 9072 in addition to the touch panel 9071. Specifically, the other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, and the like), a track ball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 9071 may be overlaid on the display panel 9061, and when the touch panel 9071 detects a touch operation on or near the touch panel 9071, the touch panel is transmitted to the processor 910 to determine the type of the touch event, and then the processor 910 provides a corresponding visual output on the display panel 9061 according to the type of the touch event. Although in fig. 9, the touch panel 9071 and the display panel 9061 are implemented as two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 9071 and the display panel 9061 may be integrated to implement the input and output functions of the terminal device, which is not limited herein.

The interface unit 908 is an interface for connecting an external device to the terminal apparatus 900. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 908 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal apparatus 900 or may be used to transmit data between the terminal apparatus 900 and external devices.

The memory 909 may be used to store software programs as well as various data. The memory 909 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 909 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 910 is a control center of the terminal device, connects various parts of the entire terminal device with various interfaces and lines, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 909 and calling data stored in the memory 909, thereby performing overall monitoring of the terminal device. Processor 910 may include one or more processing units; preferably, the processor 910 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 910.

The terminal device 900 may further include a power supply 911 (e.g., a battery) for supplying power to various components, and preferably, the power supply 911 may be logically connected to the processor 910 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.

In addition, the terminal device 900 includes some functional modules that are not shown, and are not described in detail here.

Preferably, an embodiment of the present invention further provides a terminal device, which includes a processor 910, a memory 909, and a computer program that is stored in the memory 909 and can be run on the processor 910, and when the computer program is executed by the processor 910, the computer program implements each process of the foregoing downlink control information detection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the downlink control information detection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A downlink control information detection method is applied to network side equipment, and is characterized by comprising the following steps:

2. The method of claim 1, wherein:

said C is₁C configured by individual carrier and network side equipment₁The group target parameters are in one-to-one correspondence;

or

3. The method of claim 1, wherein the target parameters comprise at least one of: the upper limit value of the first parameter corresponding to each carrier and the identification information of the first carrier;

4. The method of claim 3, wherein the upper limit value of the first parameter is an upper limit value determined based on a subcarrier bandwidth.

5. The method of claim 4, wherein:

the upper limit value of the first parameter is smaller than the upper limit value corresponding to the bandwidth of the corresponding subcarrier;

or

6. The method of claim 4, wherein C is₁The sum of the upper limit values of the first parameters of the carriers is less than or equal to C of the upper limit value corresponding to the corresponding subcarrier bandwidth_maxX wherein, C_maxThe maximum number of carriers that can be supported by the terminal device.

7. The method of claim 1, wherein the target parameter comprises an upper limit value of a first parameter corresponding to a second carrier if the upper limit value of the first parameter corresponding to the second carrier is not equal to a default upper limit value; the second carrier is the carrier C₁At least one carrier of the plurality of carriers;

8. The method of claim 7, wherein the default upper limit value is configured on a network side or predefined in a protocol.

9. The method of claim 3, wherein the unit of time comprises one of: one slot, one subframe, one symbol, at least two symbols.

10. The method of claim 3, wherein:

the first carrier is the carrier C₁The carrier wave supports the transmission of multiple Transmission Receiving Points (TRP) in the carrier waves;

or

11. The method of claim 1, further comprising:

receiving DCI detection capability information from the terminal device;

12. The method of claim 11, wherein the DCI detectability information comprises at least one of:

the search space period that the terminal device can support.

13. The method of claim 12, wherein the upper value of the second parameter comprises at least one of:

14. The method of claim 12, wherein the upper value of the third parameter comprises at least one of:

15. A downlink control information detection method is applied to terminal equipment and is characterized by comprising the following steps:

16. The method of claim 15, wherein:

the C1 carriers correspond to C1 groups of target parameters configured by the network side equipment one by one;

or

17. The method of claim 15, wherein the target parameters comprise at least one of: the upper limit value of the first parameter corresponding to each carrier and the identification information of the first carrier;

18. The method of claim 17, wherein the upper limit value of the first parameter is an upper limit value determined based on a subcarrier bandwidth.

19. The method of claim 18, wherein:

or

20. The method of claim 18, wherein C is₁The sum of the upper limit values of the first parameters of the carriers is less than or equal to C of the upper limit value corresponding to the corresponding subcarrier bandwidth_maxX wherein, C_maxThe maximum number of carriers that can be supported by the terminal device.

21. The method of claim 15, wherein the target parameter comprises an upper limit value of a first parameter corresponding to a second carrier if the upper limit value of the first parameter corresponding to the second carrier is not equal to a default upper limit value; the second carrier is the carrier C₁At least one carrier of the plurality of carriers;

22. The method of claim 21, wherein the default upper limit value is configured on a network side or predefined in a protocol.

23. The method of claim 17, wherein the unit of time comprises one of: one slot, one subframe, one symbol, at least two symbols.

24. The method of claim 17, wherein:

or

25. The method of claim 15, further comprising:

sending DCI detection capability information to the network side equipment;

26. The method of claim 25, wherein the DCI detectability information comprises at least one of:

the search space period that the terminal device can support.

27. The method of claim 26, wherein the upper value of the second parameter comprises at least one of:

28. The method of claim 26, wherein the upper value of the third parameter comprises at least one of:

On sheetBit time for said C₁An upper limit value L of the number of non-overlapping CCEs for channel estimation per one of the carriers,

29. The method of claim 15, further comprising:

30. The method of claim 15, wherein the C is performed according to at least one of DCI detection capability information of the terminal device and the target parameter₁The downlink control information detection is carried out by each carrier, and the downlink control information detection comprises the following steps:

Wherein, C_maxThe maximum number of carriers which can be supported by the terminal equipment, N is the maximum number of carriers which can be supported by the terminal equipment in each unit timeThe upper limit value of the number of times of blind detection on the carrier wave, M is the upper limit value of the number of non-overlapping CCEs which can be used by the terminal equipment to perform channel estimation on each carrier wave in unit time, and Q is the upper limit value of the number of CORESET which can be used by the terminal equipment to detect on each carrier wave in unit time.

31. The method of claim 29, wherein the C is performed according to at least one of DCI detectability information of the terminal device and the target parameter₁The downlink control information detection is carried out by each carrier, and the downlink control information detection comprises the following steps:

wherein the upper limit value of the fifth parameter comprises at least one of:

an upper limit value I of the blind detection times of the target carrier in unit time,

32. The method of claim 31, wherein:

the target carrier is a first carrier indicated by the network side equipment;

or

33. A network-side device, comprising:

34. A terminal device, comprising:

35. A network-side device, comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the downlink control information detection method according to any one of claims 1 to 14.

36. A terminal device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the downlink control information detection method according to any one of claims 15 to 32.

37. A computer-readable storage medium, characterized in that a computer program is stored thereon, which, when being executed by a processor, carries out the steps of the downlink control information detection method according to any one of claims 1 to 14, or carries out the steps of the downlink control information detection method according to any one of claims 15 to 32.