WO2019080767A1 - Method for sending downlink control channel, and method and device for detecting receipt of downlink control channel - Google Patents

Abstract

Provided in the embodiments of the present disclosure are a method for sending a downlink control channel, and a method and a device for detecting receipt of a downlink control channel, the method comprising: determining downlink control channel blind detection period parameters; and sending a downlink control channel on the basis of the downlink control channel blind detection period parameters.

Description

Method for transmitting downlink control channel, method and device for detecting receiving downlink control channel

Cross-reference to related applications

The priority of the Chinese Patent Application No. 201711015157.1 filed on Oct. 26, 2017 in China and the priority of the Chinese Patent Application No. 201711147610.4 filed on November 17, 2017 in China, the entire contents of References are included here.

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a method for transmitting a downlink control channel, and a method and device for detecting a downlink control channel.

Background technique

In the Long Term Evolution (LTE) system of the related art, the transmission time interval (TTI) length is fixed to 1 millisecond (ms), and one or more physical downlink control channels (Physical Downlink Control Channel, PDCCH) is transmitted on the first N Orthogonal Frequency Division Multiplexing (OFDM) symbols of each TTI or on a set of physical resource block pairs (PRB pairs) of the data region or in multiple consecutive or For transmission on discontinuous subframes, the user equipment (User Equipment, UE) receives the information according to the expectation in the Common Search Space (CSS) or user-specific for each non-discontinuous reception (non-DRX) subframe. The PDCCH is blindly checked on the UE-specific Search Space (USS).

In future mobile communication systems, for different service types, the downlink control channel needs to be transmitted at different time intervals, for example, once per slot or once every N slots. In addition, the time domain length of each slot will vary depending on the subcarrier spacing.

However, there is no clear solution on how to determine the slot in which the terminal listens to the downlink control channel.

Summary of the invention

In view of the above technical problem, the embodiments of the present disclosure provide a method for transmitting a downlink control channel, a method and a device for detecting a downlink control channel, and a solution to the problem of how to determine a time-frequency resource for a terminal to listen to a downlink control channel in the related art.

The first aspect provides a method for transmitting a downlink control channel, which is applied to a base station, and includes:

Determining a blind control channel blind control period parameter;

And transmitting, by the downlink control channel blind detection period parameter, a downlink control channel.

Optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect that the time domain resource of the downlink control channel is received in a predetermined time domain range. The offset within the period indicates that the terminal detects the period of receiving the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.

Optionally, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.

Optionally, the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station.

Optionally, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range.

Optionally, the offset value is configured to be selected from a particular set of offset values.

Optionally, the particular set of offset values is configured by a base station, or the particular set of offset values is agreed upon by a protocol.

Optionally, the period value is configured to be selected from a predetermined set of period values.

Optionally, the predetermined time domain range is a continuous time unit in the time domain.

Optionally, the sending the downlink control channel according to the downlink control channel blind detection period parameter, including:

Determining a time domain resource for transmitting downlink control information according to the offset value and/or the period value;

Transmitting a downlink control channel on the time domain resource.

Optionally, the determining, according to the offset value and the period value, the time domain resource for sending downlink control information, including:

Determining a time domain resource for transmitting downlink control information by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0; wherein

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier Spacing (SCS) in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value;

T _period is the period value.

Optionally, the determining, according to the offset value, the time domain resource that sends the downlink control information includes:

Determining a time domain resource for transmitting downlink control information by using a formula (W×n _f ×2 ^k +n _s -T _offset )=0; wherein

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different SCSs in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value.

Optionally, the determining, according to the period value, the time domain resource that sends the downlink control information includes:

Determining a time domain resource for transmitting downlink control information by using a formula (W×n _f ×2 ^k +n _s )mod T _period =0; wherein

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _period is the period value.

Optionally, the method further includes:

Notifying the user terminal of the downlink control channel blind detection period parameter.

Optionally, the notifying the user terminal of the downlink control channel blind detection period parameter, including:

The downlink control channel blind detection period parameter is sent to the user terminal by using high layer signaling or a master information block (MIB) information.

The second aspect provides a method for detecting and receiving a downlink control channel, which is applied to a user terminal, and includes:

Determining a blind control channel blind control period parameter;

Receiving a downlink control channel according to the downlink control channel blind detection period parameter detection.

Optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect that the time domain resource of the downlink control channel is received in a predetermined time domain range. The offset within the period indicates that the terminal detects the period of receiving the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.

Optionally, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.

Optionally, the determining a downlink control channel blind detection period parameter includes:

Receiving a downlink control channel blind detection period parameter configured by the base station.

Optionally, receiving a downlink control channel blind detection period parameter configured by the base station, including:

Receiving high layer signaling or main information block MIB information, the high layer signaling or MIB information includes a downlink control channel blind detection period parameter configured by the base station.

Optionally, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range.

Optionally, the offset value is configured to be selected from a particular set of offset values.

Optionally, the particular set of offset values is configured by a base station, or the particular set of offset values is agreed upon by a protocol.

Optionally, the period value is configured to be selected from a predetermined set of period values.

Optionally, the predetermined time domain range is a continuous time unit in the time domain.

Optionally, the receiving, by the downlink control channel blind detection period parameter, the receiving the downlink control channel, includes:

Determining, according to the offset value and/or the period value, a time domain resource that detects receiving downlink control information;

A receiving downlink control channel is detected on the time domain resource.

Optionally, the determining, according to the offset value and the period value, the time domain resource for detecting the received downlink control information, includes:

Determining a time domain resource for detecting downlink control information by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0; wherein

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value;

T _period is the period value.

Optionally, the determining, according to the offset value, the detecting the time domain resource that receives the downlink control information includes:

Determining a time domain resource for detecting downlink control information by using a formula (W×n _f ×2 ^k +n _s -T _offset )=0; wherein

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different SCSs in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value.

Optionally, the determining, according to the period value, the time domain resource for detecting the received downlink control information, includes:

Determining a time domain resource for detecting downlink control information by using a formula (W×n _f ×2 ^k +n _s ) mod T _period =0; wherein

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _period is the period value.

In a third aspect, a base station is provided, including:

a first processor, configured to determine a downlink control channel blind detection period parameter;

The first transceiver is configured to send a downlink control channel according to the downlink control channel blind detection period parameter.

Optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect that the time domain resource of the downlink control channel is received in a predetermined time domain range. The offset within the period indicates that the terminal detects the period of receiving the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.

Optionally, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.

Optionally, the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station.

Optionally, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range.

Optionally, the offset value is configured to be selected from a particular set of offset values.

Optionally, the particular set of offset values is configured by a base station, or the particular set of offset values is agreed upon by a protocol.

Optionally, the period value is configured to be selected from a predetermined set of period values.

Optionally, the predetermined time domain range is a continuous time unit in the time domain.

Optionally, the first processor is further configured to: determine, according to the offset value and/or the period value, a time domain resource that sends downlink control information;

The first transceiver is further configured to: send a downlink control channel on the time domain resource.

Optionally, the first processor is further configured to: determine, by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0, a time domain resource that sends downlink control information, where

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value;

T _period is the period value.

Optionally, the first processor is further configured to: determine, by using a formula (W×n _f ×2 ^k +n _s −T _offset )=0, a time domain resource that sends downlink control information, where

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different SCSs in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value.

Optionally, the first processor is further configured to: determine, by using a formula (W×n _f ×2 ^k +n _s ) mod T _period =0, a time domain resource that sends downlink control information, where

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _period is the period value.

Optionally, the first transceiver is further configured to: notify the user terminal of the downlink control channel blind detection period parameter.

Optionally, the first transceiver is further configured to: send the downlink control channel blind detection period parameter to the user terminal by using high layer signaling or primary information block MIB information.

The fourth aspect also provides a user terminal, including:

The second processor is configured to: determine a downlink control channel blind detection period parameter;

The second transceiver is configured to: receive the downlink control channel according to the downlink control channel blind detection period parameter detection.

Optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect that the time domain resource of the downlink control channel is received in a predetermined time domain range. The offset within the period indicates that the terminal detects the period of receiving the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.

Optionally, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.

Optionally, the second transceiver is further configured to: receive a downlink control channel blind detection period parameter configured by the base station.

Optionally, the second transceiver is further configured to: receive high layer signaling or primary information block MIB information, where the high layer signaling or MIB information includes a downlink control channel blind detection period parameter configured by the base station.

Optionally, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range.

Optionally, the offset value is configured to be selected from a particular set of offset values.

Optionally, the particular set of offset values is configured by a base station, or the particular set of offset values is agreed upon by a protocol.

Optionally, the period value is configured to be selected from a predetermined set of period values.

Optionally, the predetermined time domain range is a continuous time unit in the time domain.

Optionally, the second processor is further configured to: determine, according to the offset value and/or the period value, a time domain resource that detects receiving downlink control information;

The second transceiver is further configured to: detect receiving a downlink control channel on the time domain resource.

Optionally, the second processor is further configured to: determine, by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0, a time domain resource that detects and receives downlink control information;

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value;

T _period is the period value.

Optionally, the second processor is further configured to: determine, by using a formula (W×n _f ×2 ^k +n _s −T _offset )=0, a time domain resource that detects and receives downlink control information;

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different SCSs in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value.

Optionally, the second processor is further configured to: determine, by using a formula (W×n _f ×2 ^k +n _s ) mod T _period =0, a time domain resource that detects and receives downlink control information;

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _period is the period value.

In a fifth aspect, a base station is provided, comprising: a memory, a processor, a transceiver, and a computer program stored on the memory and operable on the processor, the processor implementing the program as implementing the first aspect The steps in the method of transmitting a downlink control channel.

A sixth aspect, further provides a user terminal, comprising: a memory, a processor, a transceiver, and a computer program stored on the memory and operable on the processor, the processor implementing the program as implementing the second The steps in the method of detecting a downlink control channel are detected.

A seventh aspect, further provides a computer readable storage medium having stored thereon a computer program, the program being executed by a processor to implement the steps in the method for transmitting a downlink control channel according to the first aspect; or The step of detecting a method of receiving a downlink control channel as described in the second aspect.

In this way, the user terminal can determine to detect the period of receiving the downlink control channel, increase system flexibility, and can reduce power consumption on the user terminal side.

DRAWINGS

1 is a schematic diagram of an LTE radio frame structure type 1;

2 is a schematic diagram of an LTE radio frame structure type 2;

3 is a schematic structural diagram of a wireless communication system according to an embodiment of the present disclosure;

4 is a flowchart of a method for transmitting a downlink control channel according to an embodiment of the present disclosure;

FIG. 5 is a second flowchart of a method for transmitting a downlink control channel according to an embodiment of the present disclosure;

FIG. 6 is a third flowchart of a method for transmitting a downlink control channel according to an embodiment of the present disclosure;

FIG. 7 is a fourth flowchart of a method for transmitting a downlink control channel according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a time-frequency resource that a terminal needs to blindly detect a downlink control channel according to an embodiment of the present disclosure;

FIG. 9 is a second schematic diagram of a time-frequency resource that a terminal needs to blindly detect a downlink control channel according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a user terminal according to an embodiment of the present disclosure;

FIG. 12 is a second schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 13 is a second schematic structural diagram of a user terminal according to an embodiment of the present disclosure.

Detailed ways

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings to be used in the embodiments of the present disclosure will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present disclosure, Those skilled in the art can also obtain other drawings based on these drawings without paying for creative labor.

The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.

The terms "first" and "second" and the like in the specification and claims of the embodiments of the present disclosure are used to distinguish different objects, and are not intended to describe a specific order of the objects. For example, the first processor and the second processor, etc., are used to distinguish different processors, rather than to describe a particular order of the processors.

In the embodiments of the present disclosure, the words "exemplary" or "such as" are used to mean an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in the disclosed embodiments should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the words "exemplary" or "such as" is intended to present the concepts in a particular manner.

Here are a few technical points:

1) Next generation mobile communication technology

The mobile Internet is subverting the traditional mobile communication business model, providing users with an unprecedented experience, which has a profound impact on all aspects of people's work and life. The mobile Internet will promote the further upgrade of human social information interaction methods, providing users with a richer business experience such as augmented reality, virtual reality, ultra high definition (3D) video, mobile cloud and so on. The further development of the mobile Internet will bring about a thousand times increase in mobile traffic in the future, and promote a new round of changes in mobile communication technologies and industries. The Internet of Things has expanded the range of services for mobile communications, from human-to-human communication to the intelligent interconnection of people and things, things and things, making mobile communication technology penetrate into a wider range of industries and fields. In the future, mobile medical, car networking, smart home, industrial control, environmental monitoring, etc. will promote the explosive growth of IoT applications, and hundreds of billions of devices will access the network to achieve a true “Internet of Everything”. At the same time, massive device connectivity and diverse IoT services will also bring new technical challenges to mobile communications.

As new business requirements continue to emerge and become more demanding, higher performance demands are placed on future mobile communication systems, such as higher peak rates, better user experience rates, smaller latency, and higher reliability. Higher spectral efficiency and higher energy efficiency, and need to support more user access and use various types of services. In order to support a large number of types of terminal connections and different types of services, the flexible configuration of uplink and downlink resources has become a major trend in technology development. Future system resources can be divided into different sub-bands according to different services, and TTIs of different lengths are divided on sub-bands to meet various service requirements.

2) LTE subframe structure in related art

In the related art, the LTE Frequency Division Dual (FDD) system uses a frame structure type (FS1), and its structure is as shown in FIG. 1. In the FDD system, the uplink and downlink transmissions use different carrier frequencies, and both the uplink and downlink transmissions use the same frame structure. On each carrier, a 10ms-length radio frame contains 10 1ms subframes, each of which is divided into two 0.5ms long time domain resources. The TTI duration of uplink and downlink data transmission is 1 ms.

In the related art, the LTE Time Division Duplexing (TDD) system uses a frame structure type 2 (FS2), as shown in FIG. 2 . In a TDD system, uplink and downlink transmissions use different subframes or different time domain resources on the same frequency. Each 10 ms radio frame in FS2 consists of two 5 ms half frames, each of which contains five subframes of 1 ms length. The sub-frames in FS2 are classified into three types: downlink sub-frames, uplink sub-frames, and special sub-frames. Each special sub-frame consists of Downlink Pilot Time Slot (DwPTS) and Guard Period (GP). And Uplink Pilot Time Slot (UpPTS) is composed of three parts. The DwPTS can transmit downlink pilot, downlink service data and downlink control signaling; the GP does not transmit any signal; the UpPTS only transmits random access and Sounding Reference Symbol (SRS), and cannot transmit uplink service or uplink control information. Each field includes at least one downlink subframe and at least one uplink subframe, and at most one special subframe. Table 7 lists the seven uplink and downlink subframe configurations supported by FS2.

Table 1: Uplink-downlink configurations

(3) LTE downlink control channel in related art

3.1, PDCCH

The PDCCH of the LTE system is used to carry scheduling information and other control information. There may be multiple PDCCHs in the control region of each downlink subframe, and the size of the control region is determined by a Physical Control Format Indicator Channel (PCFICH), and occupies 1 to 4 OFDM symbols. The transmission of one control channel occupies one Control Channel Element (CCE) or multiple consecutive CCEs, each CCE is composed of 9 Resource Element Groups (REGs), and the REGs included in the CCE of the PDCCH There is no REG for carrying a Physical Control Format Indicator Channel (PCFICH) and a Physical Hybrid ARQ Indicator Channel (PHICH). The UE monitors the PDCCH candidate set in the non-DRX subframe, that is, attempts to decode each PDCCH in the search space according to the Downlink Control Information (DCI) format to be monitored.

3.2. Enhanced Physical Downlink Control Channel (EPDCCH)

In order to expand the capacity of the PDCCH, the EPDCCH is introduced in the R11 version (Rel-11). The EPDCCH is transmitted in a data area in a subframe, and cannot occupy the transmission space of the PDCCH. The terminal configured with the EPDCCH detects the reception EPDCCH within the physical resource block configuration (PRB set) configured in each subframe.

3.3, MPDCCH

For an enhanced MTC (EMTC) UE, it detects a receiving MPDCCH on one or more subframes of a high layer configuration.

Embodiments of the present disclosure will be described below with reference to the accompanying drawings. The method for transmitting a downlink control channel and the method and device for receiving a downlink control channel provided by the embodiments of the present disclosure may be applied to a wireless communication system. The wireless communication system may be a system that adopts a fifth generation (5th generation, 5G) mobile communication technology (hereinafter referred to as a 5G system for short). Referring to FIG. 3, it is a schematic structural diagram of a wireless communication system according to an embodiment of the present disclosure. As shown in FIG. 3, the wireless communication system can include a network device 30 and a user terminal, such as UE 31, which can communicate with network device 30. In practical applications, the connection between the foregoing devices may be a wireless connection. In order to conveniently and intuitively represent the connection relationship between the devices, a solid line is illustrated in FIG.

It should be noted that the foregoing communication system may include multiple UEs, network devices, and may communicate with multiple UEs (transmit signaling or transmit data).

The network device provided by the embodiment of the present disclosure may be a base station, where the network device may be a commonly used base station, an evolved node base station (eNB), or a network device in a 5G system (for example, a next generation). A device such as a next generation node base station (gNB) or a transmission and reception point (TRP).

The user terminal provided by the embodiment of the present disclosure may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA).

Referring to FIG. 4, a flow of a method for transmitting a downlink control channel is shown. The execution body of the method may be a base station, and the specific steps are as follows:

Step 401: Determine a blind control period parameter of the downlink control channel.

The downlink control channel blind detection period parameter is used to indicate that the terminal detects the period of receiving the downlink control channel.

In the embodiment of the present disclosure, optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect that the time domain resource that receives the downlink control channel is scheduled. The offset in the time domain range, where the period value indicates that the terminal detects the period of receiving the downlink control channel, where the units of the offset value and the period value are consistent with the time domain resources, for example, the units of the offset value and the period value are all slots. .

The time domain resource may be a slot or a time-frequency resource smaller than a slot unit, such as a mini-slot, and is of course not limited thereto.

The predetermined time domain range is a continuous time unit in the time domain, for example, the time unit is 10 ms, which is of course not limited thereto.

Step 402: Send a downlink control channel according to a downlink control channel blind detection period parameter.

In an example of the embodiment of the present disclosure, the downlink control channel blind detection period parameter may be agreed in a predefined manner, that is, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter. For example, the downlink control channel blind detection period parameter is agreed by the protocol, and the base station sends the downlink control channel on the specific time-frequency resource, that is, the offset value and the period value are determined, for example, for scheduling remaining system information (RMSI, remaining system information) The period of the search space of the downlink control channel can be determined by a protocol agreement.

In another example of the embodiments of the present disclosure, the downlink control channel blind detection period parameter may be configured by the base station, that is, the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station, so that the base station can according to different services. Types or different application scenarios configure different downlink control channel detection and reception periods for the UE, which increases system flexibility and reduces terminal power consumption.

In the embodiment of the present disclosure, optionally, when the base station is configured, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range. For example, if the predetermined time domain range includes L time domain resources, the base station configures an arbitrary integer smaller than L as the offset value, and the L may be 10 or 20, which is of course not limited thereto.

In the embodiment of the present disclosure, optionally, when the base station is configured, the offset value is configured to be selected from a specific set of offset values. Further, a particular set of offset values is configured by the base station, such as a particular set of offset values configured by explicit signaling, or the particular set of offset values is agreed upon by a protocol.

In the embodiment of the present disclosure, optionally, when the base station is configured, the period value is configured to be selected from a predetermined set of period values.

In the embodiment of the present disclosure, optionally, if the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station, the method further includes: notifying the user terminal of the downlink control channel blind detection period parameter. For example, the downlink control channel blind detection period parameter is sent to the user terminal through high layer signaling (such as Radio Resource Control (RRC) signaling) or main information block (MIB) information.

In this way, the terminal can determine to detect the period of receiving the downlink control channel, increase system flexibility, and can reduce terminal side power consumption.

Referring to FIG. 5, a flow of a method for transmitting a downlink control channel is shown, and an execution body of the method may be a base station, and the specific steps are as follows:

Step 501: Determine a blind control period parameter of the downlink control channel.

In the embodiment of the present disclosure, optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect that the time domain resource that receives the downlink control channel is scheduled. The offset in the time domain range, where the period value indicates that the terminal detects the period of receiving the downlink control channel, where the units of the offset value and the period value are consistent with the time domain resources, for example, the units of the offset value and the period value are all Gap.

The time domain resource may be a slot or a time-frequency resource smaller than a slot unit, such as a mini-slot, and is of course not limited thereto.

The predetermined time domain range is a continuous time unit in the time domain, for example, the time unit is 10 ms, which is of course not limited thereto.

Step 502: Determine, according to the offset value and/or the period value, a time domain resource that sends downlink control information.

For example, determining a time domain resource for transmitting downlink control information by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0; wherein

W is a predetermined time domain range, for example, W=10 ms, of course, is not limited thereto;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different SCSs within a predetermined time unit (for example, a predetermined time unit is 1 ms), and k is a parameter related to a subcarrier space, for example, k is a set of {0, 1, The values in 2, 3, 4, 5} are of course not limited thereto, and the desirable set of k can be determined according to the subcarrier spacing existing in the future system;

n _{s is the number of the} time domain resource within the predetermined time domain, for example

T _offset is an offset value;

T _period is the period value.

Further, the time domain resource location for transmitting the downlink control channel may also be determined only by an offset value or a period value, for example:

When the time domain resource transmitted by the downlink control channel is determined only according to the offset value, it is determined by the following formula, which means that the base station transmits on the fixed time domain resource in each time domain range.

(W×n _f ×2 ^k +n _s -T _offset )=0

For another example, when determining the time domain resource sent by the downlink control channel according to the period, it is determined by the following formula:

(W × n _f × 2 ^k + n _s ) mod T _period =0

Step 503: Send a downlink control channel on the time domain resource.

In an example of the embodiment of the present disclosure, the downlink control channel blind detection period parameter may be agreed in a predefined manner, that is, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter. For example, by using a protocol to specify a downlink control channel blind detection period parameter, the base station transmits a downlink control channel on a specific time-frequency resource, that is, an offset value and a period value are determined, for example, downlink control for scheduling remaining system information (RMSI). The period of the search space of the channel can be determined by means of protocol agreement.

In another example of the embodiment of the present disclosure, the downlink control channel blind detection period parameter may be configured by the base station, that is, the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station.

In the embodiment of the present disclosure, optionally, when the base station is configured, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range. For example, if the predetermined time domain range includes L time domain resources, the base station configures an arbitrary integer smaller than L as the offset value, and the L may be 10 or 20, which is of course not limited thereto.

In the embodiment of the present disclosure, optionally, when the base station is configured, the offset value is configured to be selected from a specific set of offset values. Further, a particular set of offset values is configured by the base station, or the particular set of offset values are agreed upon by a protocol.

In the embodiment of the present disclosure, optionally, when the base station is configured, the period value is configured to be selected from a predetermined set of period values.

In an embodiment of the present disclosure, optionally, the method further includes: notifying the user terminal of the downlink control channel blind detection period parameter. For example, the downlink control channel blind detection period parameter is sent to the user terminal by using high layer signaling (such as RRC signaling) or main information block (MIB) information.

In this way, the terminal can determine to detect the period of receiving the downlink control channel, increase system flexibility, and can reduce terminal side power consumption.

Referring to FIG. 6, a flow of a method for detecting a downlink control channel is shown. The execution body of the method is a user terminal, and the specific steps are as follows:

Step 601: Determine a blind control period parameter of the downlink control channel.

In the embodiment of the present disclosure, optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect that the time domain resource that receives the downlink control channel is scheduled. The offset in the time domain range, where the period value indicates that the terminal detects the period of receiving the downlink control channel, where the units of the offset value and the period value are consistent with the time domain resources, for example, the units of the offset value and the period value are all slots. .

The time domain resource may be a slot or a time-frequency resource smaller than a slot unit, such as a mini-slot, and is of course not limited thereto.

Step 602: Receive a downlink control channel according to a downlink control channel blind detection period parameter detection.

In an example of an embodiment of the present disclosure, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter. For example, by using a protocol to specify a downlink control channel blind detection period parameter, the base station transmits a downlink control channel on a specific time-frequency resource, that is, an offset value and a period value are determined, for example, downlink control for scheduling remaining system information (RMSI). The period of the search space of the channel can be determined by means of protocol agreement.

In another example of an embodiment of the present disclosure, a downlink control channel blind check period parameter configured by a base station is received. For example, receiving high layer signaling (eg, RRC signaling) or master information block (MIB) information, the high layer signaling or MIB information includes a downlink control channel blind detection period parameter configured by the base station.

That is, the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station, so that the base station can configure different downlink control channel detection and reception periods for the UE according to different service types or different application scenarios, thereby increasing system flexibility. And can reduce terminal power consumption.

In the embodiment of the present disclosure, optionally, when the base station is configured, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range. For example, if the predetermined time domain range includes L time domain resources, the base station configures an arbitrary integer smaller than L as the offset value, and the L may be 10 or 20, which is of course not limited thereto.

In the embodiment of the present disclosure, optionally, when the base station is configured, the offset value is configured to be selected from a specific set of offset values. Further, a particular set of offset values is configured by the base station, or the particular set of offset values are agreed upon by a protocol.

In the embodiment of the present disclosure, optionally, when the base station is configured, the period value is configured to be selected from a predetermined set of period values.

In this way, the terminal can determine to detect the period of receiving the downlink control channel, increase system flexibility, and can reduce terminal side power consumption.

Referring to FIG. 7, a flow of a method for detecting a downlink control channel is shown. The execution body of the method is a user terminal, and the specific steps are as follows:

Step 701: Determine a blind control period parameter of the downlink control channel.

In the embodiment of the present disclosure, optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect that the time domain resource that receives the downlink control channel is scheduled. The offset in the time domain range, where the period value indicates that the terminal detects the period of receiving the downlink control channel, where the units of the offset value and the period value are consistent with the time domain resources, for example, the units of the offset value and the period value are all slots. .

The time domain resource may be a slot or a time-frequency resource smaller than a slot unit, such as a mini-slot, and is of course not limited thereto.

Step 702: Determine, according to the offset value and/or the period value, a time domain resource that detects and receives the downlink control information.

For example, determining a time domain resource for transmitting downlink control information by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0; wherein

W is a predetermined time domain range, for example, W=10 ms, of course, is not limited thereto;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different SCSs within a predetermined time unit (for example, a predetermined time unit is 1 ms), and k is a parameter related to a subcarrier space, for example, k is a set of {0, 1, The values in 2, 3, 4, 5} are of course not limited thereto, and the desirable set of k can be determined according to the subcarrier spacing existing in the future system;

n _{s is the number of the} time domain resource within the predetermined time domain, for example

T _offset is an offset value;

T _period is the period value.

Further, it is also possible to determine, by using only the offset value or the period value, the time domain resource for detecting the downlink control channel, for example:

When determining to detect the time domain resource of the downlink control channel based on the offset value, it is determined by the following formula, which means that the terminal detects the downlink control channel in the fixed time domain resource in each time domain range.

(W×n _f ×2 ^k +n _s -T _offset )=0

For another example, when determining the time domain resource for receiving the downlink control channel according to the period determination, it is determined by the following formula:

(W × n _f × 2 ^k + n _s ) mod T _period =0

Step 703: Detect, receive, on the time domain resource, a downlink control channel.

In an example of an embodiment of the present disclosure, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter. For example, by using a protocol to specify a downlink control channel blind detection period parameter, the base station transmits a downlink control channel on a specific time-frequency resource, that is, an offset value and a period value are determined, for example, downlink control for scheduling remaining system information (RMSI). The period of the search space of the channel can be determined by means of protocol agreement.

In another example of an embodiment of the present disclosure, a downlink control channel blind check period parameter configured by a base station is received. For example, receiving high layer signaling (eg, RRC signaling) or master information block (MIB) information, the high layer signaling or MIB information includes a downlink control channel blind detection period parameter configured by the base station.

That is, the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station, so that the base station can configure different downlink control channel detection and reception periods for the UE according to different service types or different application scenarios, thereby increasing system flexibility. And can reduce terminal power consumption.

In the embodiment of the present disclosure, optionally, when the base station is configured, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range. For example, if the predetermined time domain range includes L time domain resources, the base station configures an arbitrary integer smaller than L as the offset value, and the L may be 10 or 20, which is of course not limited thereto.

In the embodiment of the present disclosure, optionally, when the base station is configured, the offset value is configured to be selected from a specific set of offset values. Further, a particular set of offset values is configured by the base station, or the particular set of offset values are agreed upon by a protocol.

In the embodiment of the present disclosure, optionally, when the base station is configured, the period value is configured to be selected from a predetermined set of period values.

In this way, the terminal can determine to detect the period of receiving the downlink control channel, increase system flexibility, and can reduce terminal side power consumption.

Example 1:

It is assumed that the base station configures the UE in a radio frame (ie, 10 ms), and needs to blindly check the relevant parameters of the time domain resource number of the downlink control channel.

Assume that a time domain range, that is, a subcarrier spacing within a radio frame is 15 kHz, is used to indicate that the parameter k associated with the subcarrier spacing is equal to 0, that is, the time domain length of a time domain resource is 1 ms.

The relevant parameter configured by the base station for the UE-specific PDCCH of the UE is an offset value T _offset =0, a period value T _period =0, and the unit of the offset value and the period value are units of the time domain resource, and the UE is according to the following formula. It is determined that the time domain resource location of the receiving downlink control channel needs to be detected in a time domain range, that is, within a radio frame. For example, when the T _offset is configured, the base station can configure the T _offset to be any integer less than 10. Alternatively, the T _offset is configured to be selected from a specific set of offset values, for example, a set of offset values is {0. 2,4,8}.

The UE receives high-level signaling, such as RRC signaling, which carries a correlation parameter T _offset =0, T _period = 2 of the time domain resource number of the downlink control channel configured by the base station. The UE determines the number of the time domain resource that needs to detect the downlink control channel to be detected according to the following formula.

(10 × n _f × 2 ^k + n _{s -} T _offset ) mod T _period =0

In the first radio frame, n _f =0, and the time domain resources that satisfy the above formula are numbered 0, 2, 4, 6, and 8. Then, the UE needs to detect and receive the downlink control channel on the time domain resource #0, the time domain resource #2, the time domain resource #4, the time domain resource #6, and the time domain resource #8.

In the second radio frame, n _f =1, and the time domain resources that satisfy the above formula are numbered 0, 2, 4, 6, and 8. Then, the UE needs to detect and receive the downlink control channel on the time domain resource #0, the time domain resource #2, the time domain resource #4, the slot #6, and the slot #8, as shown in FIG.

And so on.

It should be noted that the foregoing time domain resource may represent a slot, and may also represent a time domain resource smaller than a slot unit, for example, a mini-slot, which is not limited in the embodiment of the present disclosure.

Example 2:

It is assumed that the base station configures the UE in a radio frame (that is, 10 ms), and needs to blindly check the relevant parameters of the time domain resource number of the downlink control channel.

Assuming that the subcarrier spacing within a time domain range (ie, a radio frame) is 30 kHz, it is used to indicate that the parameter associated with the subcarrier spacing is equal to 1, that is, the time domain length of a time domain resource is 0.5 ms.

The relevant parameter configured by the base station for the UE-specific PDCCH of the UE is an offset value T _offset = 2, and a period value T _period = 4, and the units of the offset value and the period value are units of the time domain resource, and the terminal according to the following formula It is determined that the time domain resource location of the receiving downlink control channel needs to be detected in a time domain range, that is, within a radio frame. For example, when the T _offset is configured, the base station can configure the T _offset to be any integer less than 20. Alternatively, the T _offset is configured to be selected from a predefined set of offset values, for example, a set of offset values is {0, 2, 4, 8,10,12,14,16,18}.

The UE terminal receives high-level signaling, such as RRC signaling, which carries a correlation parameter T _offset = 2, T _period = 4 of the time domain resource number of the downlink control channel configured by the base station.

The UE determines the number of the time domain resource that needs to detect the downlink control channel to be detected according to the following formula.

(10 × n _f × 2 ^k + n _{s -} T _offset ) mod T _period =0

In the first radio frame, n _f =0, and the time domain resources that satisfy the above formula are numbered 2, 6, 10, 14, and 18. Then, the UE needs to detect and receive the downlink control channel on the time domain resource #0, the time domain resource #2, the time domain resource #6, the time domain resource #10, the time domain resource #14, and the time domain resource #18, as shown in FIG.

And so on.

It should be noted that the foregoing time domain resource may represent a slot, and may also represent a time domain resource smaller than a slot unit, for example, a mini-slot, which is not limited in the embodiment of the present disclosure.

Example 3:

For a common downlink control channel, for example, a downlink control channel for scheduling residual system information (RMSI) transmission, the UE may detect the relevant parameters of the downlink control channel, which may be determined by a protocol predefined manner, such as an offset value T _offset and a period value T _period To obtain a fixed value predefined by the protocol, the UE needs to determine which time domain resources to detect and receive the downlink control channel according to a fixed value predefined by the protocol.

It should be noted that the foregoing time domain resource may represent a slot, and may also represent a time domain resource smaller than a slot unit, for example, a mini-slot, which is not limited in the embodiment of the present disclosure.

Example 4:

For the common downlink control channel, for example, the downlink control channel for scheduling the RMSI transmission, the UE detects the relevant parameters of the downlink control channel and can notify the terminal through the MIB information carried by the physical broadcast channel (PBCH). For example, the value of the offset value T _offset and the period value T _period are respectively indicated in the MIB information.

For example, if T _offset has N possible values, and T _period has M possible values, the MIB information needs ceil (log2(N)) bit to indicate the value of T _offset , and passes ceil(log2(M))bit. Indicates the value of T _period .

Alternatively, the MIB information indicates a combination of T _offset and T _period values. As shown in the table below. For example, if the corresponding indication bit in the MIB information is 00, then T _offset = N1 and T _period = M1. Of course, the embodiments of the present disclosure do not limit the numerical values of the specific combinations.

combination	T offset	T period
00	N1	M1
01	N2		M1
10	N1		M2
11	N2	M2

After determining the values of the T _offset and the T _period , the terminal determines, according to the formulas in the foregoing Embodiment 1 or Embodiment 2, on which time domain resources, the PDCCH that receives the scheduled RMSI is detected.

It should be noted that the foregoing time domain resource may represent a slot, and may also represent a time domain resource smaller than a slot unit, for example, a mini-slot, which is not limited in the embodiment of the present disclosure.

Example 5:

The mode of the embodiment 4 is also applicable to the downlink control channel and the indication signaling in the embodiment 1 and the embodiment 2, and is not limited in the embodiment of the present disclosure.

It should be noted that the descriptions of the embodiments of the present disclosure can refer to the contents described in the foregoing Embodiment 1 and Embodiment 2, and are not described herein.

Example 6

It is assumed that the UE needs to detect a group common PDCCH that receives bearer pre-emption indication information. The UE may determine, by one or more methods in Embodiments 1 to 5, detecting a slot location or a mini-slot location of the group common PDCCH that receives the pre-emption indication information. Of course, the T _period may take a value different from other downlink control channel detection periods, optionally depending on the configuration on the base station side.

A base station is also provided in the embodiment of the present disclosure. The method for the base station to solve the problem is similar to the method for transmitting the downlink control channel in the embodiment of the present disclosure. Therefore, the implementation of the base station may refer to the implementation of the method, and the repetition is not described. .

Referring to FIG. 10, the structure of a base station is shown. The base station 1000 includes:

The first processor 1001 is configured to determine a downlink control channel blind detection period parameter;

The first transceiver 1002 is configured to send a downlink control channel according to the downlink control channel blind detection period parameter.

In the embodiment of the present disclosure, optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect a time domain of receiving the downlink control channel. The offset of the resource in a predetermined time domain, the period value indicating a period in which the terminal detects the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.

In the embodiment of the present disclosure, optionally, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.

In the embodiment of the present disclosure, optionally, the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station.

In an embodiment of the present disclosure, optionally, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range.

In an embodiment of the present disclosure, optionally, the offset value is configured to be selected from a specific set of offset values.

In an embodiment of the present disclosure, optionally, the specific set of offset values is configured by a base station, or the specific set of offset values is agreed by a protocol.

In an embodiment of the present disclosure, optionally, the period value is configured to be selected from a predetermined set of period values.

In an embodiment of the present disclosure, optionally, the predetermined time domain range is a continuous time unit on the time domain.

In the embodiment of the present disclosure, the first processor 1001 is further configured to: determine, according to the offset value and/or the period value, a time domain resource that sends downlink control information;

The first transceiver 1002 is further configured to: send a downlink control channel on the time domain resource.

In the embodiment of the present disclosure, optionally, the first processor 1001 is further configured to: determine, by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0, to send downlink control information. Time domain resources; among them,

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value;

T _period is the period value.

Further, the time domain resource for sending the downlink control channel may also be determined only by using an offset value or a period value, for example:

When determining to transmit the time domain resource of the downlink control channel according to the offset value, the first processor is further configured to: determine, by using the formula (W×n _f ×2 ^k +n _s −T _offset )=0, to send the downlink control. Time domain resources for information.

For another example, when determining the time domain resource for transmitting the downlink control channel according to the period, the first processor is further configured to: determine, by using the formula (W×n _f ×2 ^k +n _s ) mod T _period =0, to send the downlink. The time domain resource that controls the information.

In the embodiment of the present disclosure, optionally, the first transceiver 1002 is further configured to: notify the user terminal of the downlink control channel blind detection period parameter.

In the embodiment of the present disclosure, the first transceiver 1002 is further configured to: send the downlink control channel blind detection period parameter to the user terminal by using high layer signaling or main information block (MIB) information.

The base station provided by the embodiment of the present disclosure may perform the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again.

A user terminal is also provided in the embodiment of the present disclosure. The method for solving the problem is similar to the method for detecting the downlink control channel in the embodiment of the present disclosure. Therefore, the implementation of the user terminal can refer to the implementation of the method. No longer stated.

Referring to FIG. 11, a structure of a user terminal is shown. The user terminal 1100 includes:

The second processor 1101 is configured to: determine a downlink control channel blind detection period parameter;

The second transceiver 1102 is configured to: receive the downlink control channel according to the downlink control channel blind detection period parameter detection.

In the embodiment of the present disclosure, optionally, the downlink control channel blind detection period parameter includes at least: an offset value and/or a period value, where the offset value indicates that the terminal needs to detect a time domain of receiving the downlink control channel. The offset of the resource in a predetermined time domain, the period value indicating a period in which the terminal detects the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.

In the embodiment of the present disclosure, optionally, the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.

In the embodiment of the present disclosure, optionally, the second transceiver 1102 is further configured to: receive a downlink control channel blind detection period parameter configured by the base station.

In the embodiment of the present disclosure, optionally, the second transceiver 1102 is further configured to: receive high layer signaling or MIB information, where the high layer signaling or MIB information includes a downlink control channel blind detection period configured by the base station. parameter.

In an embodiment of the present disclosure, optionally, the offset value is configured to be any integer smaller than the maximum number of time domain resources included in the predetermined time domain range.

In an embodiment of the present disclosure, optionally, the offset value is configured to be selected from a specific set of offset values.

In an embodiment of the present disclosure, optionally, the specific set of offset values is configured by a base station, or the specific set of offset values is agreed by a protocol.

In an embodiment of the present disclosure, optionally, the period value is configured to be selected from a predetermined set of period values.

In an embodiment of the present disclosure, optionally, the predetermined time domain range is a continuous time unit on the time domain.

In the embodiment of the present disclosure, the second processor 1101 is further configured to: determine, according to the offset value and/or the period value, a time domain resource that detects receiving downlink control information;

The second transceiver 1102 is further configured to: detect receiving a downlink control channel on the time domain resource.

In the embodiment of the present disclosure, optionally, the second processor 1101 is further configured to: determine, by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0, to detect and receive downlink control. Time domain resources of information;

W is a predetermined time domain range;

n _f is the number of the predetermined time domain range;

k is the number of time domain resources corresponding to different subcarrier spacings (SCS) in a predetermined time unit;

n _{s is the number of the} time domain resource within a predetermined time domain;

T _offset is an offset value;

T _period is the period value.

Further, it is also possible to determine, by using only the offset value or the period value, the time domain resource for detecting the downlink control channel, for example:

The second processor is further configured to: determine, by the formula (W×n _f ×2 ^k +n _s −T _offset )=0, the detection and reception when determining to detect the time domain resource of the downlink control channel according to the offset value. Time domain resources of downlink control information.

For another example, when determining to detect the time domain resource of the downlink control channel according to the period, the second processor is further configured to: determine, by using a formula (W×n _f ×2 ^k +n _s ) mod T _period =0. A time domain resource that receives downlink control information.

The user terminal provided by the embodiment of the present disclosure may perform the foregoing method embodiment, and the implementation principle and the technical effect are similar.

An embodiment of the present disclosure provides a base station, and FIG. 12 is a schematic structural diagram of a base station according to an embodiment of the present disclosure. As shown in FIG. 12, the base station 1200 includes a processor 1201, a transceiver 1202, a memory 1203, a user interface 1204, and a bus interface.

Among them, the processor 1201 can be responsible for managing the bus architecture and the usual processing. The memory 1203 can store data used by the processor 1201 when performing operations.

In the embodiment of the present disclosure, the base station 1200 may further include: a computer program stored on the memory 1203 and operable on the processor 1201. When the computer program is executed by the processor 1201, the following steps are performed: determining a downlink control channel blind detection period parameter; And transmitting, by the downlink control channel blind detection period parameter, a downlink control channel.

In the figures, a bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1201 and various circuits of memory represented by memory 1203. The bus architecture can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, the present disclosure does not further describe it. . The bus interface provides an interface. Transceiver 1202 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different UEs, the user interface 1204 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 can store data used by the processor 1201 in performing operations.

As shown in FIG. 13, the user terminal 1300 shown in FIG. 13 includes at least one processor 1301, a memory 1302, at least one network interface 1304, and a user interface 1303. The various components in user terminal 1300 are coupled together by a bus system 1305. It will be appreciated that the bus system 1305 is used to implement connection communication between these components. The bus system 1305 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as the bus system 1305 in FIG.

The user interface 1303 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen, etc.).

It is to be understood that the memory 1302 in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory. The volatile memory can be a Random Access Memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM). SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Connection Dynamic Random Access Memory (SDRAM) And direct memory bus random access memory (DRRAM). The memory 1302 of the systems and methods described in the embodiments of the present disclosure is intended to comprise, without being limited to, these and any other suitable types of memory.

In some implementations, the memory 1302 stores elements, executable modules or data structures, or a subset thereof, or their extended set: an operating system 13021 and an application 13022.

The operating system 13021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 13022 includes various applications, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services. A program implementing the method of the embodiments of the present disclosure may be included in the application 13022.

In the embodiment of the present disclosure, the program or the instruction saved by the memory 1302, specifically, may be a program or an instruction saved in the application 13022. When executed, the following steps are implemented: determining a downlink control channel blind detection period parameter; The downlink control channel blind detection period parameter detection receives the downlink control channel.

Embodiments of the present disclosure also provide a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements steps in a method of transmitting a downlink control channel as described above; or The steps in the method of detecting the downlink control channel are detected.

The steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable hard disk, read-only optical disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium may be located in an Application Specific Integrated Circuits (ASIC). Additionally, the ASIC can be located in a core network interface device. Of course, the processor and the storage medium may also exist as discrete components in the core network interface device.

Those skilled in the art will appreciate that in one or more examples described above, the functions described in this disclosure can be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present disclosure. The scope of the protection, any modifications, equivalents, improvements, etc., which are made on the basis of the technical solutions of the present disclosure, are included in the protection scope of the present disclosure.

Those skilled in the art will appreciate that embodiments of the present disclosure can be provided as a method, system, or computer program product. Thus, embodiments of the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, embodiments of the present disclosure may take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

Embodiments of the present disclosure are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It will be apparent to those skilled in the art that various modifications and changes can be made in the embodiments of the present disclosure without departing from the spirit and scope of the disclosure. Thus, the present disclosure is intended to cover such modifications and variations as the modifications and variations of the embodiments of the present disclosure.

Claims (61)

1. A method for transmitting a downlink control channel, applied to a base station, includes:

   Determining a blind control channel blind control period parameter;

   And transmitting, by the downlink control channel blind detection period parameter, a downlink control channel.
2. The method according to claim 1, wherein the downlink control channel blind detection period parameter comprises at least: an offset value and/or a period value, wherein the offset value indicates that the terminal needs to detect a time domain of receiving the downlink control channel. The offset of the resource in a predetermined time domain, the period value indicating a period in which the terminal detects the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.
3. The method of claim 1, wherein the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.
4. The method according to claim 1, wherein the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station.
5. The method of claim 4, wherein the offset value is configured to be any integer less than a maximum number of time domain resources included in a predetermined time domain range.
6. The method of claim 4 wherein the offset value is configured to be selected from a particular set of offset values.
7. The method of claim 6 wherein said particular set of offset values are configured by a base station or said particular set of offset values are agreed upon by a protocol.
8. The method of claim 4 wherein the period value is configured to be selected from a predetermined set of period values.
9. The method of claim 2 wherein said predetermined time domain range is a continuous time unit in the time domain.
10. The method of claim 2, wherein the transmitting the downlink control channel according to the downlink control channel blind detection period parameter comprises:

    Determining a time domain resource for transmitting downlink control information according to the offset value and/or the period value;

    Transmitting a downlink control channel on the time domain resource.
11. The method according to claim 10, wherein the determining the time domain resource for transmitting the downlink control information according to the offset value and the period value comprises:

    Determining a time domain resource for transmitting downlink control information by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0; wherein

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _offset is an offset value;

    T _period is the period value.
12. The method of claim 10, wherein the determining the time domain resource for transmitting the downlink control information according to the offset value comprises:

    Determining a time domain resource for transmitting downlink control information by using a formula (W×n _f ×2 ^k +n _s -T _offset )=0; wherein

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different SCSs in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _offset is an offset value.
13. The method according to claim 10, wherein the determining the time domain resource for transmitting the downlink control information according to the period value comprises:

    Determining a time domain resource for transmitting downlink control information by using a formula (W×n _f ×2 ^k +n _s )mod T _period =0; wherein

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _period is the period value.
14. The method of claim 4, further comprising:

    Notifying the user terminal of the downlink control channel blind detection period parameter.
15. The method according to claim 14, wherein the notifying the user terminal of the downlink control channel blind detection period parameter comprises:

    And transmitting, by the high layer signaling or the main information block MIB information, the downlink control channel blind detection period parameter to the user terminal.
16. A method for detecting a downlink control channel is applied to a user terminal, including:

    Determining a blind control channel blind control period parameter;

    Receiving a downlink control channel according to the downlink control channel blind detection period parameter detection.
17. The method according to claim 16, wherein the downlink control channel blind detection period parameter comprises at least: an offset value and/or a period value, wherein the offset value indicates that the terminal needs to detect a time domain of receiving the downlink control channel. The offset of the resource in a predetermined time domain, the period value indicating a period in which the terminal detects the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.
18. The method of claim 17, wherein the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.
19. The method of claim 17, wherein the determining a downlink control channel blind detection period parameter comprises:

    Receiving a downlink control channel blind detection period parameter configured by the base station.
20. The method of claim 19, wherein receiving a downlink control channel blind detection period parameter configured by the base station comprises:

    Receiving high layer signaling or main information block MIB information, the high layer signaling or MIB information includes a downlink control channel blind detection period parameter configured by the base station.
21. The method of claim 19, wherein the offset value is configured to be any integer less than a maximum number of time domain resources included in a predetermined time domain range.
22. The method of claim 19 wherein the offset value is configured to be selected from a particular set of offset values.
23. The method of claim 22 wherein said particular set of offset values are configured by a base station or said particular set of offset values are agreed upon by a protocol.
24. The method of claim 19, wherein the period value is configured to be selected from a predetermined set of period values.
25. The method of claim 19 wherein said predetermined time domain range is a continuous time unit in the time domain.
26. The method according to claim 17, wherein the detecting the receiving the downlink control channel according to the downlink control channel blind detection period parameter comprises:

    Determining, according to the offset value and/or the period value, a time domain resource that detects receiving downlink control information;

    A receiving downlink control channel is detected on the time domain resource.
27. The method according to claim 26, wherein the determining the time domain resource for detecting the received downlink control information according to the offset value and the period value comprises:

    Determining a time domain resource for detecting downlink control information by using a formula (W×n _f ×2 ^k +n _s −T _offset ) mod T _period =0; wherein

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _offset is an offset value;

    T _period is the period value.
28. The method according to claim 26, wherein the determining to detect the time domain resource for receiving the downlink control information according to the offset value comprises:

    Determining a time domain resource for detecting downlink control information by using a formula (W×n _f ×2 ^k +n _s -T _offset )=0; wherein

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different SCSs in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _offset is an offset value.
29. The method of claim 26, wherein the determining to detect the time domain resource for receiving the downlink control information according to the period value comprises:

    Determining a time domain resource for detecting downlink control information by using a formula (W×n _f ×2 ^k +n _s ) mod T _period =0; wherein

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _period is the period value.
30. A base station comprising:

    a first processor, configured to determine a downlink control channel blind detection period parameter;

    The first transceiver is configured to send a downlink control channel according to the downlink control channel blind detection period parameter.
31. The base station according to claim 30, wherein the downlink control channel blind detection period parameter comprises at least: an offset value and/or a period value, wherein the offset value indicates that the terminal needs to detect a time domain of receiving the downlink control channel. The offset of the resource in a predetermined time domain, the period value indicating a period in which the terminal detects the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.
32. The base station according to claim 30, wherein the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.
33. The base station according to claim 30, wherein the downlink control channel blind detection period parameter is a downlink control channel blind detection period parameter configured by the base station.
34. The base station according to claim 33, wherein the offset value is configured to be any integer smaller than a maximum number of time domain resources included in a predetermined time domain range.
35. The base station of claim 33, wherein the offset value is configured to be selected from a particular set of offset values.
36. The base station of claim 35 wherein said particular set of offset values are configured by a base station or said particular set of offset values are agreed upon by a protocol.
37. The base station according to claim 33, wherein said period value is configured to be selected from a predetermined set of period values.
38. The base station according to claim 33, wherein said predetermined time domain range is a continuous time unit on the time domain.
39. The base station according to claim 31, wherein the first processor is further configured to: determine, according to the offset value and/or the period value, a time domain resource that sends downlink control information;

    The first transceiver is further configured to: send a downlink control channel on the time domain resource.
40. The base station according to claim 39, wherein said first processor is further configured to: determine, by using a formula (W × n _f × 2 ^k + n _{s -} T _offset ) mod T _period =0, to transmit downlink control information Time domain resources; among them,

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _offset is an offset value;

    T _period is the period value.
41. The base station according to claim 39, wherein said first processor is further configured to: determine a time domain resource for transmitting downlink control information by using a formula (W × n _f × 2 ^k + n _{s -} T _offset ) = 0 ;among them,

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different SCSs in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _offset is an offset value.
42. The base station according to claim 39, wherein said first processor is further configured to: determine a time domain resource for transmitting downlink control information by using a formula (W × n _f × 2 ^k + n _s ) mod T _period =0 ;among them,

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _period is the period value.
43. The base station according to claim 33, wherein the first transceiver is further configured to: notify the user terminal of the downlink control channel blind detection period parameter.
44. The base station according to claim 43, wherein the first transceiver is further configured to: send the downlink control channel blind detection period parameter to the user terminal by using high layer signaling or primary information block MIB information.
45. A user terminal comprising:

    The second processor is configured to: determine a downlink control channel blind detection period parameter;

    The second transceiver is configured to: receive the downlink control channel according to the downlink control channel blind detection period parameter detection.
46. The user terminal according to claim 45, wherein the downlink control channel blind detection period parameter comprises at least: an offset value and/or a period value, wherein the offset value indicates that the terminal needs to detect when receiving the downlink control channel. The offset of the domain resource in a predetermined time domain range, where the period value indicates that the terminal detects the period of receiving the downlink control channel, and the unit of the offset value and the period value is consistent with the time domain resource.
47. The user terminal according to claim 46, wherein the downlink control channel blind detection period parameter is a predetermined downlink control channel blind detection period parameter.
48. The user terminal according to claim 46, wherein the second transceiver is further configured to: receive a downlink control channel blind detection period parameter configured by the base station.
49. The user terminal according to claim 48, wherein the second transceiver is further configured to: receive high layer signaling or main information block MIB information, where the high layer signaling or MIB information includes a downlink control channel blind configured by a base station Check cycle parameters.
50. The user terminal of claim 48, wherein the offset value is configured to be any integer less than a maximum number of time domain resources included in a predetermined time domain range.
51. The user terminal of claim 48, wherein the offset value is configured to be selected from a particular set of offset values.
52. The user terminal of claim 51 wherein said particular set of offset values are configured by a base station or said particular set of offset values are agreed upon by a protocol.
53. The user terminal of claim 48, wherein the period value is configured to be selected from a predetermined set of period values.
54. The user terminal according to claim 46, wherein said predetermined time domain range is a continuous time unit on the time domain.
55. The user terminal according to claim 46, wherein the second processor is further configured to: determine, according to the offset value and/or the period value, a time domain resource that detects receiving downlink control information;

    The second transceiver is further configured to: detect receiving a downlink control channel on the time domain resource.
56. The user terminal according to claim 55, wherein said second processor is further configured to: determine a detection receiving downlink control by a formula (W × n _f × 2 ^k + n _{s -} T _offset ) mod T _period =0 Time domain resources of information;

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _offset is an offset value;

    T _period is the period value.
57. The user terminal according to claim 55, wherein the second processor is further configured to: determine, when the downlink control information is received, by using a formula (W×n _f ×2 ^k +n _s -T _offset )=0 Domain resources; among them,

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different SCSs in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _offset is an offset value.
58. The user terminal according to claim 55, wherein the second processor is further configured to: determine, when the downlink control information is detected, by using a formula (W×n _f ×2 ^k +n _s ) mod T _period =0 Domain resources; among them,

    W is a predetermined time domain range;

    n _f is the number of the predetermined time domain range;

    k is the number of time domain resources corresponding to different subcarrier spacing SCS in a predetermined time unit;

    n _{s is the number of the} time domain resource within a predetermined time domain;

    T _period is the period value.
59. A base station comprising: a memory, a processor, a transceiver, and a computer program stored on the memory and operable on the processor, the processor executing the program to implement the method of any one of claims 1-15 The steps in the method of transmitting the downlink control channel.
60. A user terminal comprising: a memory, a processor, a transceiver, and a computer program stored on the memory and operable on the processor, the processor executing the program to implement any of claims 16-29 The steps in the method of detecting a downlink control channel are detected.
61. A computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement the steps of the method for transmitting a downlink control channel according to any one of claims 1 to 15; or The step of detecting a method of receiving a downlink control channel according to any one of claims 16 to 29.

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