WO2023040582A1 - Method for dynamically indicating ecp time slot, base station, and storage medium - Google Patents

Abstract

Disclosed are a method for dynamically indicating an ECP slot, a base station, and a storage medium, which solve the technical problem in the prior art that an ECP slot is not indicated in an NR system. The method comprises: the base station generates dynamic signaling that dynamically indicates the ECP time slot, where the ECP slot comprises at least one ECP symbol; and the base station sends the dynamic signaling to a terminal.

Description

Method, base station and storage medium for dynamically indicating ECP time slot

Cross References to Related Applications

This application claims the priority of the Chinese patent application submitted to the China Patent Office on September 14, 2021, with the application number 202111076761.1 and the application name "A method, base station, and storage medium for dynamically indicating ECP time slots", the entire content of which Incorporated in this application by reference.

technical field

The invention relates to the communication field, in particular to a method for dynamically indicating an ECP time slot, a base station and a storage medium.

Background technique

In a wireless communication system, a single frequency network (single frequency network, SFN) is usually used to improve the transmission efficiency of broadcast and multicast services.

However, when using SFN to transmit data, it is usually necessary to indicate to the terminal the type of cyclic prefix (Cyclic prefix, CP) used in the time slot for data transmission, so that the terminal can receive data according to the relevant parameters corresponding to the indicated CP type; among them, CP The types include extended CP (Extend Cyclic prefix, ECP) and normal CP (Normal Cyclic Prefix, NCP). The time domain length of ECP is greater than that of NCP. The time slot or symbol of ECP is usually called ECP time slot. The slots or symbols of the NCP are commonly referred to as NCP slots.

In the prior art, when the subcarrier spacing (Subcarrier spacing, SCS) is 15 kHz, the ECP time slot is called a multicast/multicast single frequency network transmission area (Multimedia Broadcast multicast service Single Frequency Network Transmission area, MBSFN) subframe . At present, in the LTE system, the MBSFN subframe configured by a system broadcast message is used. This configuration method is a semi-static configuration, and the configuration of the MBSFN subframe is indicated in units of 10 ms (1 radio frame).

In future broadcast and multicast services, it is necessary to support video streaming services with higher data transmission rates, such as high-definition television, augmented reality (Augmented Reality, AR)/virtual reality (Virtual Reality, VR) images, etc.

However, the new air interface (New Radio, NR) system that supports future broadcast and multicast services does not support MBSFN technology, nor does it support mixed CPs on one carrier/bandwidth (Bandwidth Part, BWP). Scenarios including NCP), so there is no way to indicate ECP slots in the NR system.

Contents of the invention

The present invention provides a method for dynamically indicating an ECP time slot, a base station and a storage medium to solve the above-mentioned technical problems existing in the prior art.

In the first aspect, in order to solve the above technical problems, the technical solution of a method for dynamically indicating the ECP time slot provided by the embodiment of the present invention is as follows:

The base station generates dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol;

The base station sends the dynamic signaling to the terminal.

In a possible implementation manner, the dynamic signaling includes the DCI, and the base station generates dynamic signaling that dynamically indicates the ECP time slot, including:

Generate DCI directly indicating the PDSCH where the ECP time slot is located;

Or, generate DCI that indirectly indicates the ECP slot.

A possible implementation manner, generating DCI directly indicating the PDSCH where the ECP time slot is located includes:

The base station indicates the ECP time slot in a preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

The bit field of the uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

A possible implementation manner, generating the DCI indirectly indicating the ECP time slot includes:

generating an MCS index greater than or equal to an MCS threshold, and carrying the MCS index in the DCI; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, based on the inclusion relationship between the preset frequency domain resource block and the first FDRA, generate the DCI carrying the first FDRA; wherein the inclusion relationship is used to indicate scheduling ECP symbols or NCP symbols;

Or, generate the DCI carrying the second FDRA based on a magnitude relationship between a preset frequency threshold and an end frequency domain position of the second FDRA; wherein the magnitude relationship is used to indicate scheduling of ECP symbols or NCP symbols.

A possible implementation manner, generating DCI directly indicating the PDSCH where the ECP time slot is located includes:

The base station adds a CP type symbol indicating a scheduling symbol to the TDRA table configuration item; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

The base station determines the corresponding index from the TDRA table according to the start and end positions of the time slot where the PDSCH is located;

The base station indicates the index in the TDRA indication field of the DCI.

In a possible implementation manner, the base station generates dynamic signaling that dynamically indicates the ECP time slot, including:

The base station adds information related to the ECP symbol in the slot format table;

The base station generates the SFI of the ECP time slot based on the time slot format table;

The SFI is carried in the DCI to obtain the dynamic instruction.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

A possible implementation manner, carrying the SFI in the DCI, and after obtaining the dynamic instruction, further includes:

The base station scrambles the DCI with a specified identifier; wherein the specified identifier is used to scramble the DCI indicating the ECP time slot;

The base station sends the scrambled DCI to the terminal.

In a second aspect, an embodiment of the present invention provides a method for dynamically indicating an ECP time slot, including:

The terminal receives dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol;

The terminal obtains time domain resource information corresponding to the ECP time slot from the dynamic signaling.

In a possible implementation manner, the dynamic signaling includes the DCI, and the terminal obtains time domain resource information corresponding to the ECP time slot from the dynamic signaling, including:

The terminal obtains the time domain resource information corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located;

Or, the terminal obtains the time domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot.

In a possible implementation manner, the terminal acquires the time domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot, including:

The terminal reads the MCS index, and if the MCS index is smaller than the MCS threshold, obtains the time domain resource corresponding to the ECP time slot; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, the terminal acquires the time domain resource corresponding to the ECP time slot based on the inclusion relationship between the preset frequency domain resource block and the frequency domain resource range indicated by the FDRA information;

Or, the terminal acquires the time-domain resource corresponding to the ECP time slot based on the size relationship between the preset frequency threshold and the end frequency-domain position of the frequency-domain resource range indicated by the FDRA information.

In a possible implementation manner, the terminal obtains the time domain resource corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located, including:

The terminal acquires the time domain resource information corresponding to the ECP time slot from the preset indication field of the DCI; wherein the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

The bit field of the uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

In a possible implementation manner, the terminal obtains the time domain resource corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located, including:

Obtain the TDRA index of the time domain resource from the TDRA indication field of the DCI;

The time-domain resource information is determined based on the TDRA index and the corresponding TDRA table.

In a possible implementation manner, determining the time domain resource information based on the TDRA index and the corresponding TDRA table includes:

When the TDRA table uses ECP symbols as time units, determine the time domain resource information according to the first start/length SLIV information corresponding to the TDRA index in the TDRA table;

Or, in the case where the TDRA table uses the NCP symbol as the time unit, determine the second SLIV information corresponding to the TDRA index and use the NCP symbol as the time unit from the TDRA table, and store the second SLIV information It is converted into third SLIV information with ECP symbols as time units, and the time domain resource information is determined according to the third SLIV information.

In a possible implementation manner, converting the second SLIV information using NCP symbols as a time unit into the third SLIV information using ECP symbols as a time unit includes:

using the smaller of the start symbol of the second SLIV information and 11 as the start symbol of the third SLIV information;

The smaller of the length of the second SLIV information and 12 is used as the length of the third SLIV information.

A possible implementation manner, converting the second SLIV information into third SLIV information with ECP symbols as time units includes:

Using the first formula to calculate the start symbol of the second SLIV information to obtain the start symbol of the third SLIV information;

calculating the length of the second SLIV information by using the second formula to obtain the length of the third SLIV information;

Wherein, the first formula includes:

S_ECP=ceil((S*NCP_duration+delta)/ECP_duration);

The second formula includes:

L_ECP=floor(((S+L)*NCP_duration+delta)/ECP_duration-S_ECP);

S_ECP is the start symbol of the third SLIV information, S is the start symbol of the second SLIV information, L_ECP is the length of the third SLIV information, L is the length of the second SLIV information, NCP_duration is The symbol length of the NCP, ECP_duration is the symbol length of the ECP, delta is the CP increment, ceil() is a function of rounding up, and floor() is a function of rounding down.

A possible implementation manner, converting the second SLIV information into third SLIV information with ECP symbols as time units includes at least one of the following steps:

When the start symbol of the second SLIV information is less than or equal to 6, use the start symbol of the second SLIV information as the start symbol of the third SLIV information;

When the start symbol of the second SLIV information is greater than or equal to 7, the difference between the start symbol of the second SLIV information and 1 is used as the start symbol of the third SLIV information;

When the length of the second SLIV information is less than or equal to 7, using the difference between the length of the second SLIV information and 1 as the length of the third SLIV information;

When the length of the second SLIV information is greater than or equal to 8, the difference between the length of the second SLIV information and 2 is used as the length of the third SLIV information.

In a possible implementation manner, the dynamic instruction includes SFI in the DCI, and the terminal receives dynamic signaling that dynamically indicates the ECP time slot, including:

The terminal acquires the indication information of the time slot format from the SFI; wherein the indication information of the time slot format is generated according to the time slot format table of the time slot format including the ECP symbol.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

In a possible implementation manner, before the terminal obtains the indication information of the time slot format from the SFI, it further includes:

The terminal uses a designated identification number to detect DCI; wherein the designated identification number is used to scramble the DCI indicating the ECP time slot;

If it is determined that the DCI is scrambled using the specified identification number, determine that the SFI is carried in the DCI.

In the third aspect, the embodiment of the present invention also provides a base station, including a memory, a transceiver, and a processor:

The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

Generating dynamic signaling that dynamically indicates an ECP slot; wherein the ECP slot includes at least one ECP symbol;

Send the dynamic signaling to the terminal.

In a possible implementation manner, the dynamic signaling includes the DCI, and the processor is further configured to:

Generate DCI directly indicating the PDSCH where the ECP time slot is located;

Or, generate DCI that indirectly indicates the ECP slot.

In a possible implementation manner, the processor is further configured to:

Indicating the ECP time slot in a preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

The bit field of the uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

In a possible implementation manner, the processor is further configured to:

generating an MCS index greater than or equal to an MCS threshold, and carrying the MCS index in the DCI; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, based on the inclusion relationship between the preset frequency domain resource block and the first FDRA, generate the DCI carrying the first FDRA; wherein the inclusion relationship is used to indicate scheduling ECP symbols or NCP symbols;

Or, generate the DCI carrying the second FDRA based on a magnitude relationship between a preset frequency threshold and an end frequency domain position of the second FDRA; wherein the magnitude relationship is used to indicate scheduling of ECP symbols or NCP symbols.

In a possible implementation manner, the processor is further configured to:

Add a CP type symbol indicating a scheduling symbol in the configuration item of the TDRA table; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Determine the corresponding index from the TDRA table according to the start and end positions of the time slot where the PDSCH is located;

The index is indicated in the TDRA indication field of the DCI.

In a possible implementation manner, the processor is further configured to:

Add information related to ECP symbols in the slot format table;

generating the SFI of the ECP time slot based on the time slot format table;

The SFI is carried in the DCI to obtain the dynamic instruction.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

In a possible implementation manner, the processor is further configured to:

carrying the SFI in the DCI, and after obtaining the dynamic instruction, scrambling the DCI with a designated identifier; wherein the designated identifier is used to scramble the DCI indicating the ECP time slot;

sending the scrambled DCI to the terminal.

In a fourth aspect, an embodiment of the present invention provides a terminal, including a memory, a transceiver, and a processor:

The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

Receive dynamic signaling that dynamically indicates an ECP time slot; wherein the ECP time slot includes at least one ECP symbol;

Obtain the time domain resource information corresponding to the ECP time slot from the dynamic signaling.

In a possible implementation manner, the dynamic signaling includes DCI, and the processor is further configured to:

Obtain the time domain resource information corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located;

Or, acquire the time-domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot.

In a possible implementation manner, the processor is further configured to:

Read the MCS index, if the MCS index is less than the MCS threshold, obtain the time domain resource corresponding to the ECP time slot; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, based on the inclusion relationship between the preset frequency domain resource block and the frequency domain resource range indicated by the frequency domain resource allocation FDRA information, acquire the time domain resource corresponding to the ECP time slot;

Or, based on the size relationship between the preset frequency threshold and the end frequency domain position of the frequency domain resource range indicated by the FDRA information, the time domain resource corresponding to the ECP time slot is acquired.

In a possible implementation manner, the processor is further configured to:

Acquiring time-domain resource information corresponding to the ECP time slot from a preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

The bit field of the uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

In a possible implementation manner, the processor is further configured to:

Obtain the TDRA index of the time domain resource from the TDRA indication field of the DCI;

The time-domain resource information is determined based on the TDRA index and the corresponding TDRA table.

In a possible implementation manner, the processor is further configured to:

When the TDRA table uses ECP symbols as time units, determine the time domain resource information according to the first start/length SLIV information corresponding to the TDRA index in the TDRA table;

Or, in the case where the TDRA table uses the NCP symbol as the time unit, determine the second SLIV information corresponding to the TDRA index and use the NCP symbol as the time unit from the TDRA table, and store the second SLIV information It is converted into third SLIV information with ECP symbols as time units, and the time domain resource information is determined according to the third SLIV information.

In a possible implementation manner, the processor is further configured to:

using the smaller of the start symbol of the second SLIV information and 11 as the start symbol of the third SLIV information;

The smaller of the length of the second SLIV information and 12 is used as the length of the third SLIV information.

In a possible implementation manner, the processor is further configured to:

calculating the start symbol of the second SLIV information by using the first formula to obtain the start symbol of the third SLIV information;

calculating the length of the second SLIV information by using the second formula to obtain the length of the third SLIV information;

Wherein, the first formula includes:

S_ECP=ceil((S*NCP_duration+delta)/ECP_duration);

The second formula includes:

L_ECP=floor(((S+L)*NCP_duration+delta)/ECP_duration-S_ECP);

S_ECP is the start symbol of the third SLIV information, S is the start symbol of the second SLIV information, L_ECP is the length of the third SLIV information, L is the length of the second SLIV information, NCP_duration is The symbol length of the NCP, ECP_duration is the symbol length of the ECP, delta is the CP increment, ceil() is a function of rounding up, and floor() is a function of rounding down.

In a possible implementation manner, the processor is further configured to:

When the start symbol of the second SLIV information is less than or equal to 6, use the start symbol of the second SLIV information as the start symbol of the third SLIV information;

When the start symbol of the second SLIV information is greater than or equal to 7, the difference between the start symbol of the second SLIV information and 1 is used as the start symbol of the third SLIV information;

When the length of the second SLIV information is less than or equal to 7, using the difference between the length of the second SLIV information and 1 as the length of the third SLIV information;

When the length of the second SLIV information is greater than or equal to 8, the difference between the length of the second SLIV information and 2 is used as the length of the third SLIV information.

In a possible implementation manner, the dynamic signaling includes SFI in DCI, and the processor is further configured to:

The indication information of the slot format is acquired from the SFI; wherein, the indication information of the slot format is generated according to a slot format table including the slot format of the ECP symbol.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

In a possible implementation manner, the processor is further configured to:

Before obtaining the indication information of the time slot format from the SFI, detect the DCI with a designated identification number; wherein, the designated identification number is used to scramble the DCI indicating the ECP time slot;

If it is determined that the DCI is scrambled using the specified identification number, determine that the SFI is carried in the DCI.

In the fifth aspect, the embodiment of the present invention further provides a base station, including:

A generating unit, configured to generate dynamic signaling for dynamically indicating an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol;

A sending unit, configured to send the dynamic signaling to the terminal.

In a possible implementation manner, the dynamic signaling includes the DCI, and the generating unit is further configured to:

Generate DCI directly indicating the PDSCH where the ECP time slot is located;

Or, generate DCI that indirectly indicates the ECP slot.

A possible implementation manner, the generating unit is also used for:

Indicating the ECP time slot in a preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

The bit field of the uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

A possible implementation manner, the generating unit is also used for:

generating an MCS index greater than or equal to an MCS threshold, and carrying the MCS index in the DCI; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, based on the inclusion relationship between the preset frequency domain resource block and the first FDRA, generate the DCI carrying the first FDRA; wherein the inclusion relationship is used to indicate scheduling ECP symbols or NCP symbols;

Or, generate the DCI carrying the second FDRA based on a magnitude relationship between a preset frequency threshold and an end frequency domain position of the second FDRA; wherein the magnitude relationship is used to indicate scheduling of ECP symbols or NCP symbols.

A possible implementation manner, the generating unit is also used for:

Add a CP type symbol indicating a scheduling symbol in the configuration item of the TDRA table; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Determine the corresponding index from the TDRA table according to the start and end positions of the time slot where the PDSCH is located;

The index is indicated in the TDRA indication field of the DCI.

A possible implementation manner, the generating unit is also used for:

Add information related to ECP symbols in the slot format table;

generating the SFI of the ECP time slot based on the time slot format table;

The SFI is carried in the DCI to obtain the dynamic instruction.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

A possible implementation manner, the generating unit is also used for:

carrying the SFI in the DCI, and after obtaining the dynamic instruction, scrambling the DCI with a designated identifier; wherein the designated identifier is used to scramble the DCI indicating the ECP time slot;

sending the scrambled DCI to the terminal.

In a sixth aspect, an embodiment of the present invention further provides a terminal, including:

A receiving unit, configured to receive dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol;

The obtaining unit is configured to obtain the time-domain resource information corresponding to the ECP time slot from the dynamic signaling.

In a possible implementation manner, the dynamic signaling includes the DCI, and the acquiring unit is further configured to:

Obtain the time domain resource information corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located;

Or, acquire the time-domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot.

A possible implementation manner, the acquisition unit is also used for:

Read the MCS index, if the MCS index is less than the MCS threshold, obtain the time domain resource corresponding to the ECP time slot; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, based on the inclusion relationship between the preset frequency domain resource block and the frequency domain resource range indicated by the FDRA information, acquire the time domain resource corresponding to the ECP time slot;

Or, based on the size relationship between the preset frequency threshold and the end frequency domain position of the frequency domain resource range indicated by the FDRA information, the time domain resource corresponding to the ECP time slot is acquired.

A possible implementation manner, the acquisition unit is also used for:

Acquiring time-domain resource information corresponding to the ECP time slot from a preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

The bit field of the uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

A possible implementation manner, the acquisition unit is also used for:

Obtain the TDRA index of the time domain resource from the TDRA indication field of the DCI;

The time-domain resource information is determined based on the TDRA index and the corresponding TDRA table.

A possible implementation manner, the acquisition unit is also used for:

When the TDRA table uses ECP symbols as time units, determine the time domain resource information according to the first start/length SLIV information corresponding to the TDRA index in the TDRA table;

Or, in the case where the TDRA table uses the NCP symbol as the time unit, determine the second SLIV information corresponding to the TDRA index and take the NCP symbol as the time unit from the TDRA table, and store the second SLIV information It is converted into third SLIV information with ECP symbols as time units, and the time domain resource information is determined according to the third SLIV information.

A possible implementation manner, the acquisition unit is also used for:

using the smaller of the start symbol of the second SLIV information and 11 as the start symbol of the third SLIV information;

The smaller of the length of the second SLIV information and 12 is used as the length of the third SLIV information.

A possible implementation manner, the acquisition unit is also used for:

calculating the start symbol of the second SLIV information by using the first formula to obtain the start symbol of the third SLIV information;

calculating the length of the second SLIV information by using the second formula to obtain the length of the third SLIV information;

Wherein, the first formula includes:

S_ECP=ceil((S*NCP_duration+delta)/ECP_duration);

The second formula includes:

L_ECP=floor(((S+L)*NCP_duration+delta)/ECP_duration-S_ECP);

S_ECP is the start symbol of the third SLIV information, S is the start symbol of the second SLIV information, L_ECP is the length of the third SLIV information, L is the length of the second SLIV information, NCP_duration is The symbol length of the NCP, ECP_duration is the symbol length of the ECP, delta is the CP increment, ceil() is a function of rounding up, and floor() is a function of rounding down.

A possible implementation manner, the acquisition unit is also used for:

When the start symbol of the second SLIV information is less than or equal to 6, use the start symbol of the second SLIV information as the start symbol of the third SLIV information;

When the start symbol of the second SLIV information is greater than or equal to 7, the difference between the start symbol of the second SLIV information and 1 is used as the start symbol of the third SLIV information;

When the length of the second SLIV information is less than or equal to 7, using the difference between the length of the second SLIV information and 1 as the length of the third SLIV information;

When the length of the second SLIV information is greater than or equal to 8, the difference between the length of the second SLIV information and 2 is used as the length of the third SLIV information.

In a possible implementation manner, the dynamic signaling includes SFI in DCI, and the receiving unit is further configured to:

The indication information of the slot format is acquired from the SFI; wherein, the indication information of the slot format is generated according to a slot format table including the slot format of the ECP symbol.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

A possible implementation manner, the receiving unit is also used for:

Detecting DCI with a specified identification number; wherein the specified identification number is used to scramble the DCI indicating the ECP slot;

If it is determined that the DCI is scrambled using the specified identification number, determine that the SFI is carried in the DCI.

In a seventh aspect, an embodiment of the present invention further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the method described in the first aspect or the second aspect. The method described in the two aspects.

Through the technical solutions in the above-mentioned one or more embodiments of the embodiments of the present invention, the embodiments of the present invention have at least the following technical effects:

In the embodiment provided by the present invention, the base station generates dynamic signaling that dynamically indicates an ECP time slot including at least one ECP symbol, and sends the dynamic signaling to the terminal, so that the base station can dynamically and flexibly schedule the data corresponding to the ECP time slot , on the basis of satisfying the performance of broadcast and multicast data transmission, the flexibility of resource usage is improved, and the utilization rate of resources is maximized.

Description of drawings

Fig. 1 is a schematic diagram of the duration of NCP and ECP in a time slot in the prior art;

Fig. 2 is a schematic diagram of sampling points of NCP and ECP in a time slot in the prior art;

FIG. 3 is a schematic diagram of a time slot format combination in the prior art;

FIG. 4 is a schematic diagram of configuration of an MBSFN subframe in an LTE system;

FIG. 5 is a flow chart of a method for dynamically indicating an ECP time slot at the base station side provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of the inclusion relationship between the first FDRA and the preset frequency domain resource block provided by the embodiment of the present invention;

FIG. 7 is a schematic diagram of the relationship between the second FDRA and the preset frequency threshold provided by the embodiment of the present invention;

FIG. 8 is a flow chart of a method for dynamically indicating an ECP time slot on the terminal side provided by an embodiment of the present invention;

FIG. 9 is a schematic diagram of sampling point positions corresponding to NCP symbols and ECP symbols in a time slot provided by an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a base station provided by an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of another base station provided by an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of another terminal provided by an embodiment of the present invention.

Detailed ways

The term "and/or" in the embodiments of the present invention describes the association relationship of associated objects, indicating that there may be three relationships, for example, A and/or B, which may mean: A exists alone, A and B exist simultaneously, and B exists alone These three situations. The character "/" generally indicates that the contextual objects are an "or" relationship.

The term "plurality" in the embodiments of the present application refers to two or more, and other quantifiers are similar.

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The technical solutions provided by the embodiments of the present application can be applied to various systems, especially 5G systems. For example, the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet Wireless business (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G NR system, etc. These various systems include end devices and network devices. The system may also include a core network part, such as an evolved packet system (Evloved Packet System, EPS), a 5G system (5GS), and the like.

The terminal device involved in this embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal equipment may be different. For example, in a 5G system, the terminal equipment may be called User Equipment (User Equipment, UE). The wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network. For example, Personal Communication Service (PCS) phone, cordless phone, Session Initiated Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant, PDA) and other devices. Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in this embodiment of the application.

The network device involved in the embodiment of the present application may be a base station, and the base station may include multiple cells that provide services for the terminal. Depending on the specific application, the base station can also be called an access point, or it can be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to interchange received over-the-air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet Protocol (IP) communication network. Network devices may also coordinate attribute management for the air interface. For example, the network equipment involved in the embodiment of the present application may be a network equipment (Base Transceiver Station, BTS) in GSM or CDMA, may also be a network equipment (NodeB) in WCDMA, and may also be an evolved network equipment in an LTE system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), can also be a home evolved base station (Home evolved Node B, HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., are not limited in this embodiment of the present application. In some network structures, a network device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

At present, NR technology adopts Orthogonal Frequency Division Multiplexing (OFDM) technology. In order to overcome the interference between symbols caused by multipath transmission, CP needs to be inserted before the transmitted data symbols. The longer the CP time domain, The stronger the ability to resist multipath interference.

Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic diagram of the duration of NCP and ECP in one time slot in the prior art, and FIG. 2 is a schematic diagram of sampling points of NCP and ECP in one time slot in the prior art.

The SCS in the above-mentioned Figures 1 and 2 is 15kHz. As shown in Figure 1, when SCS=15kHz, the length of one time slot is 1ms. When the CP inserted in the time slot is NCP, this time slot contains 14 symbol; when the slot is inserted with NCP, this slot contains 12 symbols. In order to facilitate the calculation, the time slot with time unit as the metric in Figure 1 is converted into the time slot with sampling point as the metric as shown in Figure 2, regardless of whether NCP or ECP is inserted in the time slot, one hour The total number of sampling points contained in each slot (1ms) is 30720. In the present invention, the time slot inserted into the NCP in the time slot is referred to as the NCP time slot, and the symbols in the NCP time slot are referred to as NCP symbols; the time slot inserted into the ECP in the time slot is referred to as the ECP time slot, and the ECP The symbols in the time slot are called ECP symbols.

When the base station allocates resources for the terminal, it needs to indicate to the terminal the time slot format adopted by the resource. Please refer to Table 1 for the time slot format table with the length of the NCP symbol.

Table 1

In Table 1, D represents a downlink NCP symbol, U represents an uplink NCP symbol, and F represents a flexible NCP symbol.

When the base station indicates the slot format to the terminal, it usually uses the slot format indication information (Slot Format Indication, SFI) to indicate the slot format combination, and the SFI is carried in the downlink control information (Downlink Control Information, DCI) and sent to the terminal. For the downlink control information of a group of terminals, DCI in format 2_0 is scrambled with SFI-RNTI.

Please refer to FIG. 3 , which is a schematic diagram of time slot format combination in the prior art.

As shown in FIG. 3 , it is assumed that the base station defines three time slot format combinations (0-2), and each time slot combination includes 10 time slots.

It should be noted that, in the standard, the maximum number of time slot format combinations is 512, and each time slot combination contains a maximum number of 512 time slots. That is, maxNrofSlotFormatCombinationsPerSet=512, maxNrofSlotFormatsPerCombination=512.

In Figure 3, the three slot format combinations are described as follows:

Slot format combination 0 is a full downlink time slot, and the corresponding slot format index in the slot format table (Table 1) is 0. When the slot format information (ie slot format combination) in DCI format 2_0 is 0 , indicating that the indicated 10 time slots are all downlink symbols.

Slot format combination 1 is a full uplink time slot, and the corresponding slot format index in the slot format table (Table 1) is 1. When the slot format information in DCI format 2_0 is 1, it means 1 indicated In the time slot, all are uplink symbols.

Slot format combination 2 includes some uplink time slots, some downlink time slots, and one time slot containing both uplink and downlink symbols. The corresponding slot format indexes in the slot format table (Table 1) are 0, 1 and 45. When the slot format information in DCI format 2_0 is 2, it means that the first 6 slots are downlink, the last 3 slots are uplink, and the seventh slot contains both uplink symbols and downlink symbols.

In the existing LTE (SCS=15KHz), the MBSFN subframe (that is, the ECP time slot) configured by the system broadcast message is used. This method belongs to semi-static configuration, and the MBSFN subframe configuration instruction is performed in units of 10ms (1 wireless frame). The scheme in which the indication method adopts a bitmap is shown in FIG. 4 , and FIG. 4 is a schematic diagram of the configuration of the MBSFN subframe in the LTE system.

Configure the MBSFN subframe, take the radio frame of 10ms as the unit, and use the bitmap method to indicate, where:

Subframes #0 and #5 contain initial access signals, which are NCP by default and do not need to be indicated.

Subframes #4 and #9 are used for unicast scheduling, the default is NCP, and no indication is required.

6 bits (b0~b5) indicate whether the 6 subframes are ECP, where the first bit indicates subframe #1, the second bit indicates subframe #2, the third bit indicates subframe #3, and the fourth bit Indicates subframe #6, the fifth bit indicates subframe #7, the sixth bit indicates subframe #8, 1 in each bit indicates ECP, and 0 indicates NCP.

Obviously, the semi-static configuration of MBSFN subframes in the LTE system limits the flexibility of base station scheduling, and the definition of time slot-level resources in MBSFN subframes leads to reduced resource utilization.

However, in the NR system, since MBSFN technology is not supported, and there is no mixed CP scenario on one carrier/BWP, there is no method to indicate ECP yet.

In order to solve the above problems, embodiments of the present application provide a method for dynamically indicating an ECP time slot, a base station, and a storage medium method and device.

Among them, the method and the device are conceived based on the same application. Since the principle of solving problems of the method and the device is similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.

Referring to FIG. 5 , an embodiment of the present invention provides a method for dynamically indicating an ECP time slot, and the processing procedure of the method is as follows.

Step 501: The base station generates dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol;

Step 502: the base station sends dynamic signaling to the terminal.

In the embodiment provided by the present invention, the base station generates dynamic signaling that dynamically indicates an ECP time slot including at least one ECP symbol, and sends the dynamic signaling to the terminal, so that the base station can dynamically and flexibly schedule the data corresponding to the ECP time slot , on the basis of satisfying the performance of broadcast and multicast data transmission, the flexibility of resource usage is improved, and the utilization rate of resources is maximized.

In a possible implementation manner, the base station generates dynamic signaling that dynamically indicates the ECP time slot, which may be generated based on DCI scheduling a physical downlink shared channel (PDSCH), and may be specifically implemented in the following two ways:

The first method: generating DCI directly indicating the PDSCH where the ECP time slot is located; wherein, the dynamic signaling includes the DCI.

The second type: generating DCI that indirectly indicates the ECP time slot.

For the first type, generate a DCI that directly indicates the PDSCH where the ECP slot is located, which can be indicated by using 1-bit information in the DCI, or by adding a CP type symbol in the Time Domain Resource Allocation (TDRA) configuration item instruct.

Using 1-bit information indication in the DCI may mean that the base station indicates the ECP time slot in the preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

The above preset indication domains include:

The newly added indication field in DCI is used to indicate the CP type symbol; where the CP type symbol includes NCP symbol or/and ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, and the reinterpreted or defined indication field is used to indicate the CP type symbol.

For example, in the DCI of broadcast and multicast, specify 1 bit as a newly added indication field for CP type symbol indication. When the CP type symbol indication is 1, it means that the scheduled data is NCP. For example, when the CP type symbol indicates When it is 0, it means that the scheduled data is ECP.

As another example, the existing indication field occupying 1 bit in the DCI is reinterpreted or defined, and the reinterpreted and defined indication field is used to indicate the CP type symbol.

The reinterpreted or defined indication field may be a bit field of uplink control channel power control; or indication information used to indicate uplink or downlink scheduling signaling.

When the indications of the above CP type symbols are different, the manners for the corresponding terminals to determine the corresponding time domain information are also different.

For example, in the prior art, the time unit of the TDRA table is the NCP symbol. When the CP type symbol indicates the ECP symbol, the DCI indicates the SLIV information of the NCP symbol, and the terminal needs to convert the SLIV of the NCP symbol into the ECP symbol. SLIV can correctly obtain the corresponding time domain information.

Please refer to Table 2 for the TDRA table of NCP symbols.

Table 2

As shown in Table 2, in the TDRA indication field in the DCI, when the index is 0, it means that the start symbol of the time slot where the PDSCH is scheduled is 0, and the length is 14; in the TDRA indication field in the DCI, when the index is When 1, it means that the start symbol of the time slot where the PDSCH is scheduled is 0, and the length is 7. In Table 2, when calculating the start symbol and the length symbol, it is calculated according to the NCP symbol.

When the CP type symbol indicates the NCP symbol, the terminal uses the corresponding SILV information in Table 2 to determine the time domain information. When the CP type symbol indicates the ECP symbol, the terminal needs to convert the SLIV information of the ECP symbol to the SLIV of the NCP symbol After the information is determined, the corresponding time domain information will be specifically introduced in the subsequent terminal side, and will not be repeated here.

Of course, the base station can also add the TDRA table of the ECP symbol when configuring the broadcast and multicast information. When the CP type symbol indicates the ECP symbol, the SLIV information of the ECP symbol can be indicated in the DCI, and the terminal can directly use the ECP symbol. The SLIV information determines the corresponding time domain information.

Please refer to Table 3, the TDRA table of the ECP symbol added for the base station.

table 3

As shown in Table 3, in the TDRA indicator field in the DCI, when the index is 0, it means that the start symbol of the time slot where the PDSCH is scheduled is 0, and the length is 12; in the TDRA indicator field in the DCI, when the index is When 1, it means that the start symbol of the time slot where the PDSCH is scheduled is 0, and the length is 6. In Table 3, when calculating the start symbol and the length symbol, it is calculated according to the ECP symbol.

It should be noted that: when the TDRA table entry (ie, the maximum index value) of the ECP symbol is different from the TDRA table entry entry of the NCP symbol, the index value indicated by the base station scheduling should not exceed the maximum index value of the corresponding TDRA table.

Another solution to directly indicate the ECP time slot is: the base station adds a CP type symbol indicating the scheduling symbol in the configuration item of the TDRA table; wherein, the CP type symbol includes NCP symbols or/and ECP symbols; The location determines the corresponding index from the TDRA table; the base station indicates the index in the TDRA indication field of the DCI.

Please refer to Table 4 for another TDRA table provided by the embodiment of the present invention.

Table 4

As shown in Table 4, in the TDRA indication field in DCI, a CP type symbol is added. When the index is 0, it means that the start symbol of the time slot where the PDSCH is scheduled is 0, the length is 14, and the scheduling symbol is an NCP symbol; In the TDRA indication field in the DCI, when the index is 4, it means that the start symbol of the time slot where the PDSCH is scheduled is 2, the length is 10, and the scheduling symbol is the ECP symbol.

For example, the base station writes index 5 in Table 4 into the TDRA indication field of the DCI, and sends the DCI to the terminal. The terminal can determine the corresponding time domain information as the time when the PDSCH is scheduled according to the index 5 in the TDRA indication field of the DCI. The start symbol of the slot is 0, the length is 12, and the scheduling symbol is the ECP symbol.

In the embodiment provided by the present invention, by directly indicating the ECP time slot in the DCI, the base station can dynamically and flexibly schedule the data corresponding to the ECP time slot according to the actual demand of service data; When the service data suddenly increases, if too many MBSFN subframes are configured, resources will be wasted, which will affect the real-time transmission of unicast services. If too few MBSFN subframes are configured, the transmission delay of MBS data will be increased. Reduce user experience. Therefore, the above-mentioned solution of the present application can effectively improve transmission efficiency and reduce transmission delay, and since the ECP time slot is indicated at the symbol level instead of at the time slot level as in the LTE system, it can Further improve resource utilization.

For the second type, DCI that indirectly indicates the ECP time slot can be generated in the following ways:

The first way to generate a DCI that indirectly indicates an ECP time slot: generate an MCS index that is greater than or equal to the modulation and coding strategy (Modulation and Coding Scheme, MCS) threshold, and carry the MCS index in the DCI; where the MCS threshold is to distinguish ECP Threshold for slots and NCP slots.

For example, please refer to Table 5 for the multicast data MCS index table provided by the embodiment of the present invention. The base station adds a CP type symbol in the multicast data MCS index table to indicate the CP corresponding to the MCS index. According to Table 5, the base station and the terminal agree: when the MCS index indicated in the DCI is less than an MCS threshold (assumed to be 7), the scheduled CP type symbol is an NCP symbol, otherwise it is an ECP symbol.

table 5

Assuming that the base station needs to perform broadcast and multicast data scheduling, ECP symbols need to be used at this time, and the base station can use the modulation and coding scheme corresponding to the MCS index greater than or equal to 7 to transmit data, so the base station generates an MCS index greater than or equal to 7 (as shown in Table 5 in 16), and carry the MCS index (16) in the DCI, and send the DCI to the terminal, and the terminal can not only determine that the MCS corresponding to the MCS index (16) is used for modulation and coding according to the MCS index (16) carried in the DCI , it can also be determined that the ECP symbol is used for scheduling the broadcast and multicast data.

It should be understood that the value of the MCS index carried in the above DCI is smaller than the maximum MCS index value in the multicast data MCS index table.

In addition, the signaling message may also be used to indicate to the terminal the ranges of the MCS indexes corresponding to the NCP symbols and the ECP symbols respectively. For example, MCS index 0 to MCS index 6 in Table 5 correspond to NCP symbols, and MCS index 7 to MCS index 28 correspond to ECP symbols through signaling messages, so that the multicast data MCS index table does not need to be sent to the terminal.

The second way of generating the DCI indirectly indicating the ECP time slot: based on the inclusion relationship between the preset frequency domain resource block and the first frequency domain resource assignment (Frequency domain resource assignment, FDRA), generate the DCI carrying the first FDRA; wherein, The containment relationship is used to indicate scheduling ECP symbols or NCP symbols.

The base station may pre-configure a preset frequency domain resource block, and the preset frequency domain resource block may include at least one frequency domain resource unit. When the first FDRA indicated by the base station in the DCI includes a preset frequency domain resource block, the corresponding time Domain resources use ECP notation, otherwise NCP notation. Alternatively, when the first FDRA includes a preset frequency-domain resource block, the corresponding time-domain resource uses NCP symbols, otherwise, uses ECP symbols.

Please refer to FIG. 6 , which is a schematic diagram of the inclusion relationship between the first FDRA and the preset frequency domain resource blocks provided by the embodiment of the present invention. The base station and the terminal agree that: when the first FDRA includes a preset frequency domain resource block, the corresponding time domain resource uses ECP symbols, otherwise, uses NCP symbols.

In Figure 6, the schedulable bandwidth of the base station is 0 to 120, that is, the start position of BWP is 0, and the end position of BWP is 120. resource blocks. In FIG. 6 , the PRBs scheduled by DCI-1, the PRBs scheduled by DCI-2, and the PRBs scheduled by DIC-3 can all be referred to as the first FDRA.

In Figure 6, the frequency range indicated by the FDRA of the PDSCH scheduled by DCI-1 is 0 to 100 PRBs, including preset frequency domain resource blocks (ref-PRB1 includes 80 to 85, resource blocks from 80 to 85 have a total of 5 PRBs ), after the base station carries the first FDRA including the preset frequency domain resource block in the DCI and sends it to the terminal, the terminal can determine that the corresponding time domain resource uses the ECP symbol.

For the PDSCH scheduled by DCI-2, the frequency domain range indicated by the FDRA is 0 to 60 PRB, and does not include the preset frequency domain resource block (ref-PRB1). When the base station carries the above-mentioned first FDRA that does not include the preset frequency domain resource block After being sent to the terminal in the DCI, the terminal can determine that the NCP symbol is used for the corresponding time domain resource.

For the PDSCH scheduled by DCI-3, the frequency range indicated by the FDRA is 70 to 120 PRB, including the preset frequency domain resource block (ref-PRB1). When the base station carries the first FDRA including the preset frequency domain resource block in the DCI After being sent to the terminal, the terminal can determine that the corresponding time domain resource uses the ECP symbol.

The third method of generating DCI indirectly indicating the ECP time slot: based on the size relationship between the preset frequency threshold and the end frequency domain position of the second FDRA, generate the DCI carrying the second FDRA; where the size relationship is used to indicate the scheduling of ECP symbols or NCP symbols.

For example, the base station can configure a preset frequency threshold. When the end frequency domain position of the second FDRA of the scheduled data is greater than or equal to the preset frequency threshold, the corresponding scheduled time domain resources use ECP symbols, otherwise, NCP symbols are used. . Or, when the end frequency domain position of the second FDRA of the scheduled data is greater than or equal to the preset frequency threshold, the corresponding scheduled time domain resources use NCP symbols, otherwise, use ECP symbols.

Please refer to FIG. 7 , which is a schematic diagram of the relationship between the second FDRA and the preset frequency threshold provided by the embodiment of the present invention.

In Figure 7, it is assumed that the base station and the terminal agree that when the end frequency domain position of the second FDRA of the scheduled data is greater than or equal to the preset frequency threshold, the corresponding scheduled time domain resources use ECP symbols, otherwise they use NCP symbols .

The time domain resources allocated by the base station to the terminal use ECP symbols, the BWP that the base station can call is 0 to 120, and the preset frequency threshold (shown as Ref-PRB2 in Figure 7) is 65, so the base station is allocating frequency domain resources for the terminal , the allocation is that the end frequency domain position of the first FDRA is greater than or equal to 65, as shown in the PRBs scheduled by DCI-1 and PRBs scheduled by DCI-3 in Figure 7; if the time domain resources allocated by the base station to the terminal use NCP symbols, when the base station allocates frequency domain resources for the terminal, the allocation is that the end frequency domain position of the first FDRA is less than 65, as shown in the PRB scheduled by DCI-2 in FIG. 7 .

In the embodiment provided by the present invention, by indirectly indicating the ECP time slot in the DCI, the bits occupied solely for indicating the CP type symbol can be saved, and the signaling overhead can be saved.

In a possible implementation manner, the base station generates dynamic signaling that dynamically indicates the ECP time slot, which may also be implemented in the following manner:

The base station adds information related to the ECP symbol in the slot format table; the base station generates the SFI of the ECP slot based on the slot format table; carries the SFI in the DCI to obtain a dynamic instruction.

Please refer to Table 6 for the time slot format table provided by the embodiment of the present invention.

Table 6

In Table 6, D represents the downlink NCP symbol, U represents the uplink NCP symbol, F represents the flexible NCP symbol, and E represents the downlink ECP symbol.

As shown in Table 6, the base station can add an indication (E) of the ECP symbol in lines 56 to 59 of the time slot format table, and indicate the used time slot format through SFI.

In the 56th line of the above slot format table, all the symbols indicated are E, indicating that all the symbols in the entire time slot are ECP symbols, that is, 12 ECP symbols are included in the time length of 14 NCP symbols, so the time corresponding to the 56th line The slot format is a downlink slot with all ECP symbols.

In row 57 of the above slot format table, the first 7 symbols are D symbols, and the last 7 symbols are E. Since the slot format table in Table 6 uses NCP symbols as the time unit, the last 7 symbols E indicates a symbol containing 6 ECPs. That is, the time slot format corresponding to line 57 indicates that the first half of a time slot uses downlink NCP symbols, and the second half uses downlink ECP symbols.

In the 58th row of the above slot format table, the first 7 symbols E indicate that it contains 6 ECP symbols, and the last 7 symbols are D, so the slot format corresponding to the 58th row indicates: the first half of a slot Downlink ECP symbols are used, and downlink NCP symbols are used in the second half.

In line 59 of the above slot format table, the first 6 symbols are E, including 5 ECP symbols, the last 6 symbols are U, and the middle 2 symbols are F. The time slot format corresponding to the 59th line indicates that the first part of a time slot uses 5 downlink ECP symbols, the latter part uses 6 uplink NCP symbols, and the middle part uses flexible NCP symbols.

When the time domain resource allocated by the base station for the terminal needs to use the ECP slot, it can select the slot format or slot format combination that contains the ECP symbol from the slot format table, and generate the corresponding SFI to carry in the DCI and send it to the terminal. The terminal determines the corresponding time domain resource according to the indication of the SFI. A maximum of 512 time slots can be configured for the combination of the above time slot formats.

The number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

For example, when the terminal in the edge cell of the base station is at the edge of the signal coverage, DCI may be missed. At this time, the number of time slots included in the slot format can be increased, such as making The number of slots is increased to 1024 or 2048, which can prevent terminals in edge cells from missing DCI detection.

In a possible implementation manner, the SFI is carried in the DCI, and after the dynamic instruction is obtained, it further includes:

The base station scrambles the DCI with the specified identifier; wherein, the specified identifier is used to scramble the DCI indicating the ECP time slot; the base station sends the scrambled DCI to the terminal.

For example, the base station can set a specified identifier to scramble the DCI indicating the ECP time slot, and send the scrambled DCI to the terminal after scrambling, so that only the terminal that needs to receive the broadcast multicast service can receive After the above scrambled DCI, the designated identifier is used to detect the scrambled DCI to obtain the corresponding time domain resources. In this way, other terminals that do not need to receive the broadcast multicast service cannot detect the DCI carrying the ECP time slot, thereby eliminating the need for subsequent processing and reducing the workload of other terminals.

After introducing the method of dynamically indicating the ECP time slot from the base station side, the following will introduce it from the terminal side.

Based on the same inventive concept, an embodiment of the present invention provides a method for dynamically indicating an ECP time slot, which is applied to a terminal. Please refer to FIG. 8 for a flowchart of a method for dynamically indicating an ECP time slot on the terminal side provided by an embodiment of the present invention. The method includes:

Step 801: The terminal receives dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol;

Step 802: the terminal obtains the time domain resource information corresponding to the ECP time slot from the dynamic signaling.

For the aforementioned direct or indirect indication methods on the base station side, the terminal side obtains the indication and determines the corresponding time domain resource information in the following manner:

When the dynamic signaling includes the DCI, the terminal obtains the time domain resource information corresponding to the ECP time slot from the dynamic signaling in the first way:

The terminal obtains the time domain resource information corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located.

Regarding the way that the base station side indicates the ECP time slot in the preset indication field of the DCI, the terminal side obtains the time domain resource information corresponding to the ECP time slot from the preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

Among them, the preset indication fields include:

The newly added indication field in DCI is used to indicate the CP type symbol; where the CP type symbol includes NCP symbol or/and ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, and the reinterpreted or defined indication field is used to indicate the CP type symbol. The reinterpreted or defined indication field includes a bit field of uplink control channel power control; or, indication information for indicating uplink or downlink scheduling signaling.

For example, the base station adds an indication field in the DCI, and the indication field occupies 1 bit. The base station can set 1 in the indication field to indicate the NCP symbol, and set 0 to indicate the ECP symbol, or vice versa. Or the indication field indicates the ECP symbol (for example, when it is set to 1 or 0). After obtaining the newly added indication field in the DCI indicating the ECP time slot, the terminal can obtain the corresponding time domain resource.

For another example, after the base station redefines or interprets the bit field of uplink channel power control in DCI, it is used to indicate the CP symbol type, and the terminal obtains the bit field according to the redefined or interpreted uplink channel power control from the received DCI , obtain corresponding information to determine the time domain resource corresponding to the ECP time slot.

In view of the way that the base station adds a CP type symbol in the TDRA table, the terminal obtains the TDRA index of the time domain resource from the TDRA indication field of the DCI; and determines the time domain resource information based on the TDRA index and the corresponding TDRA table.

Since in the present invention, the TDRA table can be the ECP symbol as the time unit, or the NCP symbol as the time unit, the terminal can use the following when determining the time domain resource information corresponding to the ECP time slot based on the TDRA index and the corresponding TDRA table Several ways to achieve:

The first method: when the TDRA table uses the ECP symbol as the time unit, the time domain resource information is determined according to the first start/length SLIV information corresponding to the TDRA index in the TDRA table.

For example, the base station configures a TDRA table with ECP symbols as time units (as shown in Table 3), and the base station can directly indicate the TDRA index in Table 3 (assumed to be 3) in the TDR indication field of DCI, and the terminal receives the above After DCI, it is determined that the TDRA index is 3, and according to Table 3, it can be determined that the corresponding first SLIV is S=2, L=2, so it can be determined that the corresponding time-domain resource information is the time when the start symbol is 2 and the length is 2. Domain resources.

The second type: when the TDRA table takes the NCP symbol as the time unit, determine the second SLIV information corresponding to the TDRA index and take the NCP symbol as the time unit from the TDRA table, and convert the second SLIV information into the ECP symbol. The third SLIV information of the time unit, and determine the time domain resource information according to the third SLIV information.

For example, the base station configures a TDRA table with NCP symbols as the time unit (as shown in Table 2). The TDRA index corresponding to the time domain resources allocated by the base station to the terminal is 3 in Table 2. After receiving the above DCI, the base station selects It is determined that the corresponding second SLIV information is S=2, L=2, but the time unit is NCP symbol, so it is necessary to convert the second SLIV information into the third SLIV information with ECP symbol as the time unit, and then determine the corresponding time Domain resource information.

The above conversion of the second SLIV information with NCP symbols as time units into the third SLIV information with ECP symbols as time units can be achieved in the following manner:

The smaller of the start symbol of the second SLIV information and 11 is used as the start symbol of the third SLIV information; the smaller of the length of the second SLIV information and 12 is used as the length of the third SLIV information.

For example, the base station uses Table 2 (TDRA table with NCP symbol as the time unit), allocates the time domain resource corresponding to TDRA index 4 in Table 2 to the broadcast multicast service, and sends the above information to the terminal through DCI, and the terminal receives After arriving at DCI, determine S=2, L=12 in the second SLIV information from the TDRA indication field of DCI, and use the above method to determine S=2, L=11 in the third SLIV information in which one ECP symbol is a time unit. In this way, the TDRA index in the TDRA table with the NCP symbol as the time unit can be directly used for the ECP time slot, which improves the working efficiency of both communication parties.

The above-mentioned conversion of the second SLIV information into the third SLIV information with ECP symbol as the time unit can also be realized by calculation, specifically as follows:

Using the first formula to calculate the start symbol of the second SLIV information to obtain the start symbol of the third SLIV information; using the second formula to calculate the length of the second SLIV information to obtain the length of the third SLIV information;

Wherein, the first formula includes:

S_ECP=ceil((S*NCP_duration+delta)/ECP_duration);

The second formula includes:

L_ECP=floor(((S+L)*NCP_duration+delta)/ECP_duration-S_ECP);

S_ECP is the start symbol of the third SLIV information, S is the start symbol of the second SLIV information, L_ECP is the length of the third SLIV information, L is the length of the second SLIV information, NCP_duration is the symbol length of NCP, ECP_duration is ECP The symbol length of , delta is the CP increment, ceil() is the function of rounding up, and floor() is the function of rounding down.

Take SCS=15kHz as an example, NCP_duration=2192, ECP_duration=2560 (refer to Figure 2), when calculating S_ECP, when S≤6, delta=16, when S>6, delta=32; when calculating L_ECP, when S+L delta=16 when symbol 0 is included, and delta=32 when S+L includes symbols 0 and 7.

Therefore, the first formula above is used to calculate the values (0-12) of all start symbols (denoted as NCP start symbols) with NCP symbols as time units, and the corresponding ECP symbols as time units (denoted as NCP start symbols) are calculated. The start symbol (0-11) is the ECP start symbol), as shown in Table 7, which is the corresponding relationship table between the NCP start symbol and the conversion result of the ECP start symbol provided by the embodiment of the present invention.

Table 7

Adopt above-mentioned second formula, when S=0, the value (2～14) of all lengths (denoted as the number of NCP symbols) is calculated with NCP symbol as time unit, obtains corresponding ECP symbol as time unit ( The initial symbols (1-12), which are recorded as the number of ECP symbols), are shown in Table 8, which is the corresponding relationship table of the conversion results of the NCP symbol length and the ECP symbol length when S is 0 provided by the embodiment of the present invention.

Table 8

Similarly, when S is 0 to 6, the correspondence table of the conversion results of the NCP symbol length and the ECP symbol length can be calculated. For example, please refer to Table 9 for the conversion result table of the NCP symbol length and the ECP symbol length provided by the embodiment of the present invention when S is 7.

Table 9

Similarly, when S is 7-12, the corresponding relationship table of the conversion results of the NCP symbol length and the ECP symbol length can be calculated.

In the NR system, the value of the SCS can also be other values, and the corresponding NCP symbols and ECP symbols have different time lengths. Correspondingly, the above-mentioned method can be used to convert the second SLIV information with the NCP symbol as the time unit under different SCSs into Third SLIV information with ECP symbol as time unit.

In a possible implementation manner, converting the second SLIV information into the third SLIV information with ECP symbols as the time unit may also be implemented in the following manner:

In the case where the start symbol of the second SLIV information is less than or equal to 6, the start symbol of the second SLIV information is used as the start symbol of the third SLIV information;

In the case where the start symbol of the second SLIV information is greater than or equal to 7, the difference between the start symbol of the second SLIV information and 1 is used as the start symbol of the third SLIV information;

When the length of the second SLIV information is less than or equal to 7, the difference between the length of the second SLIV information and 1 is used as the length of the third SLIV information;

When the length of the second SLIV information is greater than or equal to 8, the difference between the length of the second SLIV information and 2 is used as the length of the third SLIV information.

Through the above method, the second SLIV information can be quickly converted into the third SLIV information with the ECP symbol as the time unit, thereby improving the processing efficiency of the terminal and reducing the calculation amount of the terminal.

When the base station adds a CP symbol type in the TDRA table (as shown in Table 4), the terminal can directly determine whether the corresponding SLIV information uses NCP symbols or ECP symbols after obtaining the TDRA index. If the SLIV information uses NCP symbols, it can The conversion is performed in the above-mentioned manner of converting the second SLIV information into the third SLIV information.

In the embodiment provided by the present invention, the specific CP type symbols used by the SLIV information in the TDRA table can be determined by the interface protocol between the base station and the terminal. The CP type symbols are different, and the sampling point positions of the start symbols of the SLIV information are different, such as FIG. 9 is a schematic diagram of sampling point locations corresponding to NCP symbols and ECP symbols in a time slot provided by an embodiment of the present invention. Figure 9 takes SCS=15kH as an example, assuming that the start symbol S=6 of the indicated SLIV information (ECP symbol), if the start symbol is calculated according to the length of the NCP symbol, the number of corresponding sampling points at S=6 is: 13168; if The start symbol is calculated according to the length of the ECP symbol, and the number of corresponding sample points at S=6 is: 15360.

A second way for the terminal to obtain the time-domain resource information corresponding to the ECP time slot from dynamic signaling: the terminal obtains the time-domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot.

The terminal obtains the time-domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot, including the following implementation methods:

The terminal reads the MCS index, and if the MCS index is smaller than the MCS threshold, obtains the time domain resource corresponding to the ECP time slot; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, the terminal acquires the time domain resource corresponding to the ECP time slot based on the inclusion relationship between the preset frequency domain resource block and the frequency domain resource range indicated by the frequency domain resource allocation FDRA information;

Or, based on the size relationship between the preset frequency threshold and the end position of the frequency domain resource range indicated by the FDRA information, the terminal acquires the time domain resource corresponding to the ECP time slot.

For example, the base station and the terminal agree that when the MCS index is greater than or equal to the MCS threshold, the CP type symbol is an ECP symbol, and when the MCS index is smaller than the MCS threshold, the CP type symbol is an NCP symbol. After the base station sends the MCS index greater than or equal to the MCS threshold in the DCI to the terminal, the terminal can determine that the time domain resources use ECP symbols. Or, after the base station instructs the terminal through a signaling message about the correspondence between the MCS index and the ECP symbol/NCP symbol, the terminal can determine whether the time domain resource uses the NCP symbol or the ECP symbol according to the received MCS index and the above correspondence.

As shown in Figure 6, the base station and the terminal agree that: the frequency domain resource range including the preset frequency domain resource block (80) adopts the ECP time slot, then the terminal determines the frequency domain resource indicated by the FDRA information after receiving the FDRA information The range (0-100) includes preset frequency-domain resource blocks (80), and it is determined that ECP symbols are used. If the range of frequency domain resources indicated by the FDRA information is 0-60, the terminal can determine that NCP symbols are used.

As shown in FIG. 7 , the base station and the terminal agree that the end frequency domain position of the frequency domain resource range is greater than or equal to the preset frequency threshold (65), and the ECP symbol is used, and the NCP symbol is used if it is less than 65. If the terminal receives the FDRA information indicating that the frequency domain range is 0-100 (the end position is 100), it can be determined that the ECP symbol is used; if the terminal receives the FDRA information indicating that the frequency domain range is 0-60 (the end position is 60 ), it can be determined that the NCP symbol is used.

When the base station adds the relevant information of the ECP symbol in the slot format table, the terminal receives the dynamic signaling that dynamically indicates the extended cyclic prefix ECP slot, which can be realized in the following ways:

When the dynamic instruction includes the SFI in the DCI, the terminal obtains the indication information of the slot format from the SFI; wherein, the indication information of the slot format is generated according to the slot format table of the slot format including the ECP symbol.

As shown in Table 6, the base station indicates that the index of the time slot format in the SFI is 56, then the base station can determine that the corresponding time slot uses the full downlink ECP symbol after obtaining the index 56 from the aSFI. If the SFI indicates a slot format combination, symbols corresponding to each slot in the slot format combination can be determined according to Table 6.

Since Table 6 is expressed with NCP symbols as the time unit, the terminal needs to convert the time slot position information with the NCP symbol as the time unit in the slot format to the time slot position information with the ECP symbol as the time unit (including the start symbol position and the number of ECP symbols contained), can be determined in the same manner as converting the second SLIV information into the third SLIV information, namely:

In the case where the starting position of the E symbol in the slot format table is less than or equal to 6, the starting symbol ECP_S of the ECP slot is equal to the value in the table;

In the case where the start of the E symbol in the slot format table is greater than or equal to 7, the start symbol ECP_S of the ECP symbol is equal to the value -1 in the table;

In the case that the number of E symbols in the slot format table is less than or equal to 7, the symbol number ECP_L of the ECP symbol is equal to the value -1 in the table;

In the case that the number of E symbols in the slot format table is greater than or equal to 8, the symbol number ECP_L of the ECP symbol is -2 in the table.

For example, in line 56 in Table 6, ECP_S=0, ECP_L=14-2=12, in line 57 in Table 6, ECP_S=6, ECP_L=7-1=6.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

For example, the SFI sent by the base station to the terminal in the edge cell indicates that the number of time slots contained in the time slot format of the ECP symbol is 1024 or 2048, and the terminal can detect the above information in a relatively long time to avoid missed detection.

In a possible implementation manner, before the terminal obtains the indication information of the time slot format from the SFI, it further includes:

The terminal detects the DCI with the specified identification number; wherein, the specified identification number is used to scramble the DCI indicating the ECP time slot; when it is determined that the DCI is scrambled with the specified identification number, it is determined that the DCI carries the SFI.

For example, when the base station indicates the time domain resources of the broadcast multicast service (using ECP symbols), it can use a designated identifier (such as ECP_RNTI) to scramble the DCI carrying the above indication information, and the terminal that needs to obtain the above broadcast multicast service, Using the specified identifier to detect the scrambled DCI can obtain the corresponding time-domain resource, and a terminal that does not need to obtain the above-mentioned broadcast multicast service cannot obtain the corresponding time-domain resource without using the specified identifier to detect the DCI.

Usually, PDSCH scheduling is divided into two types: Type A and Type B. Different types have different constraints on the start symbol and scheduling symbol length (or number of symbols) of PDSCH, as shown in Table 10. Table 10 shows that PDSCH corresponds to different scheduling Type is a list of combinations of valid start symbols (S) and symbol lengths (L).

Table 10

When the scheduling type of the PDSCH is Type A, calculating S and L of the ECP scheduling symbol can be realized by using the scheme in the embodiment of the present invention.

When the scheduling type of PDSCH is Type B, the calculation of S and L of ECP scheduling symbols requires further restrictions, such as limiting the S corresponding to ECP to 0 to 10, and the L corresponding to ECP to three values of 2, 4, and 6.

It should be noted that: for the parameter L of allocating PDSCH, it can be called the number of symbols, and it can also be called the symbol length; , which can be applied to dynamically determine the ECP symbols/slots, and can also be determined in other ways (such as semi-static and static methods through high-layer signaling).

As shown in FIG. 10, a base station provided by an embodiment of the present invention includes a memory 1001, a transceiver 1002, and a processor 1003:

The memory 1001 is used to store computer programs; the transceiver 1002 is used to send and receive data under the control of the processor 1003; the processor 1003 is used to read the computer programs in the memory 1001 and perform the following operations:

Generating dynamic signaling that dynamically indicates an ECP slot; wherein the ECP slot includes at least one ECP symbol;

Send the dynamic signaling to the terminal.

In a possible implementation manner, the dynamic signaling includes DCI, and the processor 1003 is further configured to:

Generate DCI directly indicating the PDSCH where the ECP time slot is located;

Or, generate DCI that indirectly indicates the ECP slot.

In a possible implementation manner, the processor 1003 is further configured to:

Indicating the ECP time slot in a preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

bit field of uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

In a possible implementation manner, the processor 1003 is further configured to:

generating an MCS index greater than or equal to an MCS threshold, and carrying the MCS index in the DCI; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, based on the inclusion relationship between the preset frequency domain resource block and the first FDRA, generate the DCI carrying the first FDRA; wherein the inclusion relationship is used to indicate scheduling ECP symbols or NCP symbols;

Or, generate the DCI carrying the second FDRA based on a magnitude relationship between a preset frequency threshold and an end frequency domain position of the second FDRA; wherein the magnitude relationship is used to indicate scheduling of ECP symbols or NCP symbols.

In a possible implementation manner, the processor 1003 is further configured to:

Add a CP type symbol indicating a scheduling symbol in the configuration item of the TDRA table; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Determine the corresponding index from the TDRA table according to the start and end positions of the time slot where the PDSCH is located;

The index is indicated in the TDRA indication field of the DCI.

In a possible implementation manner, the processor 1003 is further configured to:

Add information related to ECP symbols in the slot format table;

generating the SFI of the ECP time slot based on the time slot format table;

The SFI is carried in the DCI to obtain the dynamic instruction.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

In a possible implementation manner, the processor 1003 is further configured to:

carrying the SFI in the DCI, and after obtaining the dynamic instruction, scrambling the DCI with a designated identifier; wherein the designated identifier is used to scramble the DCI indicating the ECP time slot;

sending the scrambled DCI to the terminal.

The transceiver 1002 is used for receiving and sending data under the control of the processor 1003 .

Wherein, in FIG. 10 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1003 and various circuits of the memory represented by the memory 1001 are linked together. The bus architecture can also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. Transceiver 1002 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media. The processor 1003 is responsible for managing the bus architecture and general processing, and the memory 1001 can store data used by the processor 1003 when performing operations.

The processor 1003 can be a central processing device (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device , CPLD), the processor can also adopt a multi-core architecture.

As shown in Figure 11, an embodiment of the present invention provides a terminal, including a memory 1101, a transceiver 1102, and a processor 1103:

The memory 1101 is used to store computer programs; the transceiver 1102 is used to send and receive data under the control of the processor 1103; the processor 1103 is used to read the computer programs in the memory 1101 and perform the following operations:

Receive dynamic signaling that dynamically indicates an extended cyclic prefix ECP slot; wherein the ECP slot includes at least one ECP symbol;

Obtain the time domain resource information corresponding to the ECP time slot from the dynamic signaling.

In a possible implementation manner, the dynamic signaling includes the DCI, and the processor 1103 is further configured to:

Obtain the time domain resource information corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located;

Or, acquire the time-domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot.

In a possible implementation manner, the processor 1103 is further configured to:

Read the MCS index, if the MCS index is less than the MCS threshold, obtain the time domain resource corresponding to the ECP time slot; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, based on the inclusion relationship between the preset frequency domain resource block and the frequency domain resource range indicated by the FDRA information, acquire the time domain resource corresponding to the ECP time slot;

Or, based on the size relationship between the preset frequency threshold and the end frequency domain position of the frequency domain resource range indicated by the FDRA information, the time domain resource corresponding to the ECP time slot is acquired.

In a possible implementation manner, the processor 1103 is further configured to:

Acquiring time-domain resource information corresponding to the ECP time slot from a preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

bit field of uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

In a possible implementation manner, the processor 1103 is further configured to:

Obtain the TDRA index of the time domain resource from the TDRA indication field of the DCI;

The time-domain resource information is determined based on the TDRA index and the corresponding TDRA table.

In a possible implementation manner, the processor 1103 is further configured to:

When the TDRA table uses ECP symbols as time units, determine the time domain resource information according to the first start/length SLIV information corresponding to the TDRA index in the TDRA table;

Or, in the case where the TDRA table uses the NCP symbol as the time unit, determine the second SLIV information corresponding to the TDRA index and use the NCP symbol as the time unit from the TDRA table, and store the second SLIV information It is converted into third SLIV information with ECP symbols as time units, and the time domain resource information is determined according to the third SLIV information.

In a possible implementation manner, the processor 1103 is further configured to:

using the smaller of the start symbol of the second SLIV information and 11 as the start symbol of the third SLIV information;

The smaller of the length of the second SLIV information and 12 is used as the length of the third SLIV information.

In a possible implementation manner, the processor 1103 is further configured to:

calculating the start symbol of the second SLIV information by using the first formula to obtain the start symbol of the third SLIV information;

calculating the length of the second SLIV information by using the second formula to obtain the length of the third SLIV information;

Wherein, the first formula includes:

S_ECP=ceil((S*NCP_duration+delta)/ECP_duration);

The second formula includes:

L_ECP=floor(((S+L)*NCP_duration+delta)/ECP_duration-S_ECP);

S_ECP is the start symbol of the third SLIV information, S is the start symbol of the second SLIV information, L_ECP is the length of the third SLIV information, L is the length of the second SLIV information, NCP_duration is The symbol length of the NCP, ECP_duration is the symbol length of the ECP, delta is the CP increment, ceil() is a function of rounding up, and floor() is a function of rounding down.

In a possible implementation manner, the processor 1103 is further configured to:

When the start symbol of the second SLIV information is less than or equal to 6, use the start symbol of the second SLIV information as the start symbol of the third SLIV information;

When the start symbol of the second SLIV information is greater than or equal to 7, the difference between the start symbol of the second SLIV information and 1 is used as the start symbol of the third SLIV information;

When the length of the second SLIV information is less than or equal to 7, using the difference between the length of the second SLIV information and 1 as the length of the third SLIV information;

When the length of the second SLIV information is greater than or equal to 8, a difference between the length of the second SLIV information and 2 is used as the length of the third SLIV information.

In a possible implementation manner, the dynamic signaling includes time slot format indication information SFI in the DCI, and the processor 1103 is further configured to:

The indication information of the slot format is acquired from the SFI; wherein, the indication information of the slot format is generated according to the slot format table including the slot format of the ECP symbol.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

In a possible implementation manner, the processor 1103 is further configured to:

Before obtaining the indication information of the time slot format from the SFI, detect the DCI with a designated identification number; wherein, the designated identification number is used to scramble the DCI indicating the ECP time slot;

If it is determined that the DCI is scrambled using the specified identification number, determine that the SFI is carried in the DCI.

The transceiver 1102 is configured to receive and send data under the control of the processor 1103 .

Wherein, in FIG. 11 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1103 and various circuits of the memory represented by the memory 1101 are linked together. The bus architecture can also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. Transceiver 1102 may be a plurality of elements, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media, including wireless channels, wired channels, fiber optic cables, etc. Transmission medium. For different user equipments, the user interface 1104 may also be an interface capable of connecting externally and internally to required devices, and the connected devices include but not limited to keypads, displays, speakers, microphones, joysticks, and so on.

The processor 1103 is responsible for managing the bus architecture and general processing, and the memory 1101 can store data used by the processor 1103 when performing operations.

Optionally, the processor 1103 can be a CPU (Central Office), ASIC (Application Specific Integrated Circuit, Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array, Field Programmable Gate Array) or CPLD (Complex Programmable Logic Device , complex programmable logic device), the processor can also adopt a multi-core architecture.

The processor is used to execute any one of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

It should be noted here that the above-mentioned device provided by the embodiment of the present invention can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect. The part and the beneficial effect are described in detail.

Based on the same inventive concept, an embodiment of the present invention provides a base station. For the specific implementation of the method for dynamically indicating the ECP time slot of the base station, please refer to the description of the method embodiment. The base station includes:

A generating unit 1201, configured to generate dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol;

The sending unit 1202 is configured to send the dynamic signaling to the terminal.

In a possible implementation manner, the dynamic signaling includes the DCI, and the generating unit 1201 is further configured to:

Generate DCI directly indicating the PDSCH where the ECP time slot is located;

Or, generate DCI that indirectly indicates the ECP slot.

In a possible implementation manner, the generating unit 1201 is further configured to:

Indicate the ECP time slot in the preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

The bit field of the uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

In a possible implementation manner, the generating unit 1201 is further configured to:

generating an MCS index greater than or equal to an MCS threshold, and carrying the MCS index in the DCI; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, based on the inclusion relationship between the preset frequency domain resource block and the first FDRA, generate the DCI carrying the first FDRA; wherein the inclusion relationship is used to indicate scheduling ECP symbols or NCP symbols;

Or, generate the DCI carrying the second FDRA based on a magnitude relationship between a preset frequency threshold and an end frequency domain position of the second FDRA; wherein the magnitude relationship is used to indicate scheduling of ECP symbols or NCP symbols.

In a possible implementation manner, the generating unit 1201 is further configured to:

Add a CP type symbol indicating a scheduling symbol in the configuration item of the TDRA table; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Determine the corresponding index from the TDRA table according to the start and end positions of the time slot where the PDSCH is located;

The index is indicated in the TDRA indication field of the DCI.

In a possible implementation manner, the generating unit 1201 is further configured to:

Add information related to ECP symbols in the slot format table;

generating the SFI of the ECP time slot based on the time slot format table;

The SFI is carried in the DCI to obtain the dynamic instruction.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

In a possible implementation manner, the generating unit 1201 is further configured to:

carrying the SFI in the DCI, and after obtaining the dynamic instruction, scrambling the DCI with a designated identifier; wherein the designated identifier is used to scramble the DCI indicating the ECP time slot;

sending the scrambled DCI to the terminal.

Based on the same inventive concept, an embodiment of the present invention provides a terminal. For the specific implementation of the method for dynamically indicating the ECP time slot of the terminal, please refer to the description of the method embodiment. The terminal includes:

The receiving unit 1301 is configured to receive dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol;

The obtaining unit 1302 is configured to obtain time domain resource information corresponding to the ECP time slot from the dynamic signaling.

In a possible implementation manner, the dynamic signaling includes DCI, and the obtaining unit 1302 is further configured to:

Obtain the time domain resource information corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located;

Or, acquire the time-domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot.

In a possible implementation manner, the acquiring unit 1302 is further configured to:

Read the MCS index, if the MCS index is less than the MCS threshold, obtain the time domain resource corresponding to the ECP time slot; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot;

Or, based on the inclusion relationship between the preset frequency domain resource block and the frequency domain resource range indicated by the FDRA information, acquire the time domain resource corresponding to the ECP time slot;

Or, based on the size relationship between the preset frequency threshold and the end frequency domain position of the frequency domain resource range indicated by the FDRA information, the time domain resource corresponding to the ECP time slot is acquired.

In a possible implementation manner, the acquiring unit 1302 is further configured to:

Acquiring time-domain resource information corresponding to the ECP time slot from a preset indication field of the DCI; wherein, the preset indication field occupies 1 bit.

A possible implementation manner, the preset indication field includes:

A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol;

Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol.

A possible implementation manner, the reinterpreted or defined indicator domain includes:

The bit field of the uplink control channel power control;

Or, indication information used to indicate uplink or downlink scheduling signaling.

In a possible implementation manner, the acquiring unit 1302 is further configured to:

Obtain the TDRA index of the time domain resource from the TDRA indication field of the DCI;

The time-domain resource information is determined based on the TDRA index and the corresponding TDRA table.

In a possible implementation manner, the acquiring unit 1302 is further configured to:

When the TDRA table uses ECP symbols as time units, determine the time domain resource information according to the first start/length SLIV information corresponding to the TDRA index in the TDRA table;

Or, in the case where the TDRA table uses the NCP symbol as the time unit, determine the second SLIV information corresponding to the TDRA index and use the NCP symbol as the time unit from the TDRA table, and store the second SLIV information It is converted into third SLIV information with ECP symbols as time units, and the time domain resource information is determined according to the third SLIV information.

In a possible implementation manner, the acquiring unit 1302 is further configured to:

using the smaller of the start symbol of the second SLIV information and 11 as the start symbol of the third SLIV information;

The smaller of the length of the second SLIV information and 12 is used as the length of the third SLIV information.

In a possible implementation manner, the acquiring unit 1302 is further configured to:

calculating the start symbol of the second SLIV information by using the first formula to obtain the start symbol of the third SLIV information;

calculating the length of the second SLIV information by using the second formula to obtain the length of the third SLIV information;

Wherein, the first formula includes:

S_ECP=ceil((S*NCP_duration+delta)/ECP_duration);

The second formula includes:

L_ECP=floor(((S+L)*NCP_duration+delta)/ECP_duration-S_ECP);

S_ECP is the start symbol of the third SLIV information, S is the start symbol of the second SLIV information, L_ECP is the length of the third SLIV information, L is the length of the second SLIV information, NCP_duration is The symbol length of the NCP, ECP_duration is the symbol length of the ECP, delta is the CP increment, ceil() is a function of rounding up, and floor() is a function of rounding down.

In a possible implementation manner, the acquiring unit 1302 is further configured to:

When the start symbol of the second SLIV information is less than or equal to 6, use the start symbol of the second SLIV information as the start symbol of the third SLIV information;

When the start symbol of the second SLIV information is greater than or equal to 7, the difference between the start symbol of the second SLIV information and 1 is used as the start symbol of the third SLIV information;

When the length of the second SLIV information is less than or equal to 7, using the difference between the length of the second SLIV information and 1 as the length of the third SLIV information;

When the length of the second SLIV information is greater than or equal to 8, the difference between the length of the second SLIV information and 2 is used as the length of the third SLIV information.

In a possible implementation manner, the dynamic signaling includes time slot format indication information SFI in the DCI, and the receiving unit 1301 is further configured to:

The indication information of the slot format is acquired from the SFI; wherein, the indication information of the slot format is generated according to the slot format table including the slot format of the ECP symbol.

In a possible implementation manner, the number of time slots included in the time slot format of the ECP symbol includes 1024 or 2048.

In a possible implementation manner, the receiving unit 1301 is further configured to:

Detecting DCI with a specified identification number; wherein the specified identification number is used to scramble the DCI indicating the ECP slot;

If it is determined that the DCI is scrambled using the specified identification number, determine that the SFI is carried in the DCI.

It should be noted that the division of units in the embodiment of the present application is schematic, and is only a logical function division, and there may be another division manner in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or part of the contribution to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

It should be noted here that the above-mentioned device provided by the embodiment of the present invention can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect. The part and the beneficial effect are described in detail.

Based on the same inventive concept, an embodiment of the present invention further provides a processor-readable storage medium, where a computer program is stored in the processor-readable storage medium, and the computer program is used to enable the processor to execute the above terminal side or base station The method for dynamically indicating the ECP time slot described above.

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic storage (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application 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 and optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagrams, and combinations of procedures and/or blocks in the flowchart and/or block diagrams can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine, such that instructions executed by the processor of the computer or other programmable data processing equipment produce Means for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the processor-readable memory produce a manufacturing product, the instruction device realizes the functions specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.

These processor-executable instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented The executed instructions provide steps for implementing the functions specified in the procedure or procedures of the flowchart and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (40)

A method for dynamically indicating ECP time slots, characterized in that the method comprises: The terminal receives dynamic signaling that dynamically indicates an extended cyclic prefix ECP slot; wherein the ECP slot includes at least one ECP symbol; The terminal obtains time domain resource information corresponding to the ECP time slot from the dynamic signaling. The method according to claim 1, wherein the dynamic signaling includes downlink control information (DCI), and the terminal obtains the time domain resource information corresponding to the ECP time slot from the dynamic signaling, including : The terminal obtains the time domain resource information corresponding to the ECP time slot from the DCI directly indicating the physical downlink shared channel PDSCH where the ECP time slot is located; Or, the terminal obtains the time domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot. The method according to claim 2, wherein the terminal obtains the time-domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot, including: The terminal reads the modulation and coding strategy MCS index, and if the MCS index is smaller than the MCS threshold, obtains the time domain resource corresponding to the ECP time slot; wherein, the MCS threshold is to distinguish the ECP time slot from the NCP time slot critical value; Or, the terminal acquires the time domain resource corresponding to the ECP time slot based on the inclusion relationship between the preset frequency domain resource block and the frequency domain resource range indicated by the frequency domain resource allocation FDRA information; Or, the terminal acquires the time-domain resource corresponding to the ECP time slot based on the size relationship between the preset frequency threshold and the end frequency-domain position of the frequency-domain resource range indicated by the FDRA information. The method according to claim 2, wherein the terminal obtains the time domain resource corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located, including: The terminal acquires the time domain resource information corresponding to the ECP time slot from the preset indication field of the DCI; wherein the preset indication field occupies 1 bit. The method according to claim 4, wherein the preset indication domain includes: A newly added indication field in the DCI, the newly added indication field is used to indicate a CP type symbol; wherein, the CP type symbol includes a common cyclic prefix NCP symbol or/and an ECP symbol; Or, a reinterpreted or defined indication field in the DCI, where the reinterpreted or defined indication field is used to indicate the CP type symbol. The method according to claim 5, wherein the reinterpreted or defined indication domain includes: The bit field of the uplink control channel power control; Or, indication information used to indicate uplink or downlink scheduling signaling. The method according to claim 2, wherein the terminal obtains the time domain resource corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located, including: Obtain the TDRA index of the time domain resource from the time domain resource allocation TDRA indication field of the DCI; The time-domain resource information is determined based on the TDRA index and the corresponding TDRA table. The method according to claim 7, wherein, based on the TDRA index and the corresponding TDRA table, determining the time domain resource information includes: When the TDRA table uses ECP symbols as time units, determine the time domain resource information according to the first start/length SLIV information corresponding to the TDRA index in the TDRA table; Or, in the case where the TDRA table uses the NCP symbol as the time unit, determine the second SLIV information corresponding to the TDRA index and use the NCP symbol as the time unit from the TDRA table, and store the second SLIV information It is converted into third SLIV information with ECP symbols as time units, and the time-domain resource information is determined according to the third SLIV information. The method according to claim 8, wherein converting the second SLIV information into the third SLIV information with the ECP symbol as the time unit comprises: use the smaller of the start symbol of the second SLIV information and 11 as the start symbol of the third SLIV information; The smaller of the length of the second SLIV information and 12 is used as the length of the third SLIV information. The method according to claim 8, wherein converting the second SLIV information into the third SLIV information with the ECP symbol as the time unit comprises: calculating the start symbol of the second SLIV information by using the first formula to obtain the start symbol of the third SLIV information; calculating the length of the second SLIV information by using the second formula to obtain the length of the third SLIV information; Wherein, the first formula includes: S_ECP=ceil((S*NCP_duration+delta)/ECP_duration); The second formula includes: L_ECP=floor(((S+L)*NCP_duration+delta)/ECP_duration-S_ECP); S_ECP is the start symbol of the third SLIV information, S is the start symbol of the second SLIV information, L_ECP is the length of the third SLIV information, L is the length of the second SLIV information, NCP_duration is The symbol length of the NCP, ECP_duration is the symbol length of the ECP, delta is the CP increment, ceil() is a function of rounding up, and floor() is a function of rounding down. The method according to claim 8, wherein converting the second SLIV information into the third SLIV information with the ECP symbol as the time unit comprises at least one of the following steps: When the start symbol of the second SLIV information is less than or equal to 6, use the start symbol of the second SLIV information as the start symbol of the third SLIV information; When the start symbol of the second SLIV information is greater than or equal to 7, the difference between the start symbol of the second SLIV information and 1 is used as the start symbol of the third SLIV information; When the length of the second SLIV information is less than or equal to 7, using the difference between the length of the second SLIV information and 1 as the length of the third SLIV information; When the length of the second SLIV information is greater than or equal to 8, the difference between the length of the second SLIV information and 2 is used as the length of the third SLIV information. The method according to claim 1, wherein the dynamic signaling includes time slot format indication information SFI in the DCI, and the terminal receives the dynamic signaling dynamically indicating the ECP time slot, including: The terminal obtains the indication information of the slot format from the SFI; wherein the indication information of the slot format is generated according to the slot format table of the slot format including the ECP symbol. The method according to claim 12, wherein the number of time slots contained in the time slot format of the ECP symbol includes 1024 or 2048. The method according to claim 12, wherein, before the terminal obtains the indication information of the time slot format from the SFI, it further includes: The terminal uses a designated identification number to detect DCI; wherein the designated identification number is used to scramble the DCI indicating the ECP time slot; If it is determined that the DCI is scrambled using the specified identification number, determine that the SFI is carried in the DCI. A method for dynamically indicating an ECP time slot, comprising: The base station generates dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol; The base station sends the dynamic signaling to the terminal. The method according to claim 15, wherein the dynamic signaling includes DCI, and the base station generates dynamic signaling that dynamically indicates the ECP time slot, including: Generate DCI directly indicating the PDSCH where the ECP time slot is located; Or, generate DCI that indirectly indicates the ECP slot. The method according to claim 16, wherein generating the DCI directly indicating the PDSCH where the ECP time slot is located comprises: The base station indicates the ECP time slot in a preset indication field of the DCI; wherein, the preset indication field occupies 1 bit. The method according to claim 16, wherein generating the DCI indirectly indicating the ECP time slot comprises: generating an MCS index greater than or equal to an MCS threshold, and carrying the MCS index in the DCI; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot; Or, based on the inclusion relationship between the preset frequency domain resource block and the first FDRA, generate the DCI carrying the first FDRA; wherein the inclusion relationship is used to indicate scheduling ECP symbols or NCP symbols; Or, generate the DCI carrying the second FDRA based on a magnitude relationship between a preset frequency threshold and an end frequency domain position of the second FDRA; wherein the magnitude relationship is used to indicate scheduling of ECP symbols or NCP symbols. The method according to claim 16, wherein generating the DCI directly indicating the PDSCH where the ECP time slot is located comprises: The base station adds a CP type symbol indicating a scheduling symbol to the TDRA table configuration item; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol; The base station determines the corresponding index from the TDRA table according to the start and end positions of the time slot where the PDSCH is located; The base station indicates the index in the TDRA indication field of the DCI. The method according to claim 15, wherein the base station generates dynamic signaling for dynamically indicating the ECP time slot, comprising: The base station adds information related to the ECP symbol in the slot format table; The base station generates the SFI of the ECP time slot based on the time slot format table; The SFI is carried in the DCI to obtain the dynamic instruction. The method according to claim 20, wherein the SFI is carried in the DCI, and after obtaining the dynamic instruction, further comprising: The base station scrambles the DCI with a specified identifier; wherein the specified identifier is used to scramble the DCI indicating the ECP time slot; The base station sends the scrambled DCI to the terminal. A terminal, characterized in that it includes a memory, a transceiver, and a processor: The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: The terminal receives dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol; The terminal obtains time domain resource information corresponding to the ECP time slot from the dynamic signaling. The terminal according to claim 22, wherein the dynamic signaling includes DCI, and the processor is further configured to: The terminal obtains the time domain resource information corresponding to the ECP time slot from the DCI directly indicating the PDSCH where the ECP time slot is located; Or, the terminal obtains the time domain resource information corresponding to the ECP time slot from the DCI indirectly indicating the ECP time slot. The terminal according to claim 23, wherein the processor is further configured to: The terminal reads the MCS index, and if the MCS index is smaller than the MCS threshold, obtains the time domain resource corresponding to the ECP time slot; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot; Or, the terminal acquires the time domain resource corresponding to the ECP time slot based on the inclusion relationship between the preset frequency domain resource block and the frequency domain resource range indicated by the FDRA information; Or, the terminal acquires the time-domain resource corresponding to the ECP time slot based on the size relationship between the preset frequency threshold and the end frequency-domain position of the frequency-domain resource range indicated by the FDRA information. The terminal according to claim 23, wherein the processor is further configured to: The terminal acquires the time domain resource information corresponding to the ECP time slot from the preset indication field of the DCI; wherein the preset indication field occupies 1 bit. The terminal according to claim 23, wherein the processor is further configured to: Obtain the TDRA index of the time domain resource from the TDRA indication field of the DCI; The time-domain resource information is determined based on the TDRA index and the corresponding TDRA table. The terminal according to claim 26, wherein the processor is further configured to: When the TDRA table uses ECP symbols as time units, determine the time domain resource information according to the first start/length SLIV information corresponding to the TDRA index in the TDRA table; Or, in the case where the TDRA table uses the NCP symbol as the time unit, determine the second SLIV information corresponding to the TDRA index and use the NCP symbol as the time unit from the TDRA table, and store the second SLIV information It is converted into third SLIV information with ECP symbols as time units, and the time domain resource information is determined according to the third SLIV information. The terminal according to claim 27, wherein the processor is further configured to: using the smaller of the start symbol of the second SLIV information and 11 as the start symbol of the third SLIV information; The smaller of the length of the second SLIV information and 12 is used as the length of the third SLIV information. The terminal according to claim 27, wherein the processor is further configured to: calculating the start symbol of the second SLIV information by using the first formula to obtain the start symbol of the third SLIV information; calculating the length of the second SLIV information by using the second formula to obtain the length of the third SLIV information; Wherein, the first formula includes: S_ECP=ceil((S*NCP_duration+delta)/ECP_duration); The second formula includes: L_ECP=floor(((S+L)*NCP_duration+delta)/ECP_duration-S_ECP); S_ECP is the start symbol of the third SLIV information, S is the start symbol of the second SLIV information, L_ECP is the length of the third SLIV information, L is the length of the second SLIV information, NCP_duration is The symbol length of the NCP, ECP_duration is the symbol length of the ECP, delta is the CP increment, ceil() is a function of rounding up, and floor() is a function of rounding down. The terminal according to claim 27, wherein the processor is further configured to: When the start symbol of the second SLIV information is less than or equal to 6, use the start symbol of the second SLIV information as the start symbol of the third SLIV information; When the start symbol of the second SLIV information is greater than or equal to 7, the difference between the start symbol of the second SLIV information and 1 is used as the start symbol of the third SLIV information; When the length of the second SLIV information is less than or equal to 7, using the difference between the length of the second SLIV information and 1 as the length of the third SLIV information; When the length of the second SLIV information is greater than or equal to 8, the difference between the length of the second SLIV information and 2 is used as the length of the third SLIV information. The terminal according to claim 22, wherein the dynamic signaling includes SFI in DCI, and the processor is further configured to: The terminal obtains the indication information of the slot format from the SFI; wherein the indication information of the slot format is generated according to the slot format table of the slot format including the ECP symbol. The terminal according to claim 31, wherein the processor is further configured to: Before the terminal obtains the indication information of the time slot format from the SFI, the terminal detects the DCI with a designated identification number; wherein the designated identification number is used to scramble the DCI indicating the ECP time slot; If it is determined that the DCI is scrambled using the specified identification number, determine that the SFI is carried in the DCI. A base station, characterized in that it includes a memory, a transceiver, and a processor: The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: Generating dynamic signaling that dynamically indicates an ECP slot; wherein the ECP slot includes at least one ECP symbol; Send the dynamic signaling to the terminal. The base station according to claim 33, wherein the dynamic signaling includes the DCI, and the processor is further configured to: Generate DCI directly indicating the PDSCH where the ECP time slot is located; Or, generate DCI that indirectly indicates the ECP slot. The base station according to claim 34, wherein the processor is further used for: Indicate the ECP time slot in the preset indication field of the DCI; wherein, the preset indication field occupies 1 bit; Or, generate an MCS index greater than or equal to the MCS threshold, and carry the MCS index in the DCI; wherein, the MCS threshold is a critical value for distinguishing the ECP time slot from the NCP time slot; Or, based on the inclusion relationship between the preset frequency domain resource block and the first FDRA, generate the DCI carrying the first FDRA; wherein the inclusion relationship is used to indicate scheduling ECP symbols or NCP symbols; Or, generate the DCI carrying the second FDRA based on a magnitude relationship between a preset frequency threshold and an end frequency domain position of the second FDRA; wherein the magnitude relationship is used to indicate scheduling of ECP symbols or NCP symbols. The base station according to claim 34, wherein the processor is further used for: Add a CP type symbol indicating a scheduling symbol in the configuration item of the TDRA table; wherein, the CP type symbol includes an NCP symbol or/and an ECP symbol; Determine the corresponding index from the TDRA table according to the start and end positions of the time slot where the PDSCH is located; The index is indicated in the TDRA indication field of the DCI. The base station according to claim 33, wherein the processor is further configured to: Add information related to ECP symbols in the slot format table; generating the SFI of the ECP time slot based on the time slot format table; The SFI is carried in the DCI to obtain the dynamic instruction. A base station, characterized in that it comprises: A generating unit, configured to generate dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol; A sending unit, configured to send the dynamic signaling to the terminal. A terminal, characterized by comprising: A receiving unit, configured to receive dynamic signaling that dynamically indicates an ECP time slot; wherein, the ECP time slot includes at least one ECP symbol; The obtaining unit is configured to obtain the time-domain resource information corresponding to the ECP time slot from the dynamic signaling. A processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to make the processor execute the method according to any one of claims 1 to 21 .

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