CN110830401A

CN110830401A - Method and device for determining modulation coding order table type

Info

Publication number: CN110830401A
Application number: CN201810911013.2A
Authority: CN
Inventors: 夏树强; 郭秋瑾; 陈梦竹; 石靖; 徐俊
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2020-02-21
Also published as: WO2020030142A1

Abstract

The invention provides a method and a device for determining modulation coding order table types, wherein the method comprises the following steps: and the user equipment UE determines the type of the modulation coding order table according to the determined search space, and/or the corresponding relation between the index for indicating the preset modulation coding order and the type of the modulation coding order table, and/or the specified parameter for indicating and distinguishing the type of the modulation coding order table used by the UE. The method and the device solve the problem that the search space type of the information cannot be determined due to the overlapping of the CSS and the USS in the related technology.

Description

Method and device for determining modulation coding order table type

Technical Field

The invention relates to the field of communication, in particular to a method and a device for determining a modulation coding order table type.

Background

In existing communication systems, a User Equipment (UE) is rooted on a continuous reception (non-DRX) mode subframeAn attempt is made to decode each candidate Physical Downlink Control Channel (PDCCH) in a Search Space (SS) according to a Downlink Control information format (DCI format) to be monitored. The Search Space of the UE has a Common Search Space (CSS for short) and a UE-specific Search Space (USS for short). The starting position of the common search space is a control channel Element CCE0 (CCE for short), and the starting position of the UE-specific search space can be calculated by a formula. In New Radio Access Technology (NR), the UE is only in Aggregation Level (AL) L_∈Common search space is monitored on {4,8,16}, but UE-specific search space is monitored on aggregation level L ∈ {1,2,4,8,16}, and the common search space and the UE-specific search space may overlap. In the case that the CSS and the USS overlap, if the DCI format to be currently monitored can be transmitted on both the CSS and the USS, for example, DCIformat 0_0/1_0 in NR, the UE may not be able to determine the search space type where the information is located when monitoring such DCI format carried by the PDCCH.

In grant-based transmission of new radio access technology Ultra-Reliable and low latency Communications NR URLLC (URLLC for short), 64 Quadrature Amplitude Modulation (QAM for short) Modulation coding order (MCS for short) tables are divided into two types, i.e., type a and type B, where code rate and spectral Efficiency (Spectrum Efficiency, SE for good detection) corresponding to most entries in the two tables are the same, but type a tables can support lower code rate and SE, and type B tables can support higher code rate and SE. In the proposal of RAN1#93 conference pass, it is specified that when Radio Resource Control (RRC) does not configure some specific Radio Network Temporary identifier RNTI (Radio Network Temporary identity, RNTI for short) and RRC parameters for indicating the MCS table use type indicate an a-type table, it is necessary to determine which type of MCS table to use according to the search space type in which DCI format0_0/1_0/0_1/1_1 is located. Currently, DCI format0_ 1/1_1 in NR is transmitted only in UE-specific search space, while DCI format0_0/1_0 can be transmitted in both CSS and USS search spaces. Therefore, for DCIformat 0_0/1_0, the UE may not be able to determine the search space type where the information is located due to the overlapping of CSS and USS, and finally cannot determine the 64QAM MCS table type used.

In view of the above problems, no effective solution exists in the related art at present.

Disclosure of Invention

The embodiment of the invention provides a method and a device for determining a modulation coding order table type, which are used for at least solving the problem that the search space type of information cannot be determined due to the overlapping of a CSS (cascading St) and a USS (Universal Serial bus) in the related art.

According to an embodiment of the present invention, there is provided a method for determining a modulation coding order table type, including: and the user equipment UE determines the type of the modulation coding order table according to the determined search space, and/or the corresponding relation between the index for indicating the preset modulation coding order and the type of the modulation coding order table, and/or the specified parameter for indicating and distinguishing the type of the modulation coding order table used by the UE.

According to another embodiment of the present invention, there is provided an apparatus for determining a modulation coding order table type, including: and the user equipment UE determines the type of the modulation coding order table according to the determined search space, and/or the corresponding relation between the index for indicating the preset modulation coding order and the type of the modulation coding order table, and/or the specified parameter for indicating and distinguishing the type of the modulation coding order table used by the UE.

According to yet another embodiment of the present invention, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps in the above method embodiment of determining a modulation and coding order table type when executed.

According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in the above method embodiment of determining a modulation and coding order table type.

The UE determines the type of the modulation coding order table according to the determined search space, and/or the corresponding relation between the index for indicating the preset value modulation coding order and the type of the modulation coding order table, and/or the designated parameter for indicating and distinguishing the type of the modulation coding order table used by the UE, namely the search space is determined according to the type of the modulation coding order table, so that the problem that the search space type where the information is located cannot be determined due to the overlapping of the CSS and the USS in the related technology is solved, and the blank in the related technology is filled.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic diagram of a part of selection rules of an MCS table during URLLC grant-based transmission in the related art;

fig. 2 is a block diagram of a hardware configuration of a mobile terminal for determining a method of modulating a type of a coding order table according to an embodiment of the present invention;

FIG. 3 is a flow diagram of a method of determining a modulation coding order table type according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an apparatus for determining a modulation coding order table type according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

First, the background of the embodiments of the present invention is introduced:

in the related art, a search space S on an Aggregation Level (AL) L ∈ {1,2,4,8,16} is defined as a PDCCH candidate set. The UE will attempt to decode each PDCCH candidate in its search space SS on a subframe according to the DCI format to be monitored. The search space is divided into a common search space CSS and a UE-specific search space USS. The common space is used for transmitting common information at the cell level, and most of the common information is control information, for example, in NR, DCI format0_0/1_0 contains information for ensuring basic operation, and the information is the same for all UEs. The UE-specific search space is used for transmitting control information (UE-level information) related to UL-SCH, DL-SCH, etc., and only a specific UE can decode specific information content. CSS is used to transmit common control information, requiring higher reliability, using higher aggregation levels to provide more protection. The USS is used for transmitting UE-specific data, and has a large number of aggregation levels. 1 PDCCH is transmitted on n consecutive CCEs, each consisting of multiple REGs.

In NR, the UE monitors four common search spaces including Type0-PDCCH, Type0A-PDCCH, Type1-PDCCH and Type2-PDCCH, wherein Control Resource Set (CORESET) of the common search spaces of Type0-PDCCH, Type0A-PDCCH and Type2-PDCCH are the same, and the CEE aggregation level and the number of PDCCH candidate sets are the same

One to one correspondence, as shown in table 1. In each Serving Cell (SC), the high layer signaling configures Q CORESETs for the UE, wherein Q is more than or equal to 0 and less than or equal to Q for CORESET Q. OFDM symbols, RBs sets, CCE-to-REG mapping information and antenna port isochronous frequency domain resources are configured in CORESET, each CORESET comprises a group of CCEs numbered from 0 to NCCE and q-1, wherein NCCE and q are the number of CCEs in CORESET q. For the non-DRX mode, the UE monitors the candidate PDCCH in the CORESET q according to the symbol period configured by the high-level parameters. Maximum number of non-overlapping CCEs and maximum number of PDCCH candidates per serving cell and slot

All in one-to-one correspondence with subcarrier spacing, as shown in tables 2 and 3, the maximum number of PDCCH candidate sets for a UE-specific search space is

The CCE aggregation level L of the public search space belongs to {4,8,16}, the CEE aggregation level L of the UE-specific search space belongs to {1,2,4,8,16}, the starting position of the public search space starts from CCE0, and the starting position of the UE-specific search space is obtained through formula calculation. The common search space and the UE-specific search space may overlap.

Table 1: type0/Type0A/Type 2-CCE aggregation level of PDCCH common search space and the corresponding maximum PDCCH candidate set number;

CCE Aggregation Level	Number of Candidates
		4	4
8	2
		16	1

TABLE1

TABLE 2 subcarrier spacing 2^μ15kHz, the maximum number of PDCCH candidate sets corresponding to each serving cell and time slot;

TABLE 2

TABLE 3 subcarrier spacing 2^μ15kHz, maximum number of non-overlapping CCEs per serving cell and slot;

TABLE 3

In NR, for a downlink bandwidth portion bwp (bandwidth part) of a serving cell, when a UE is configured to monitor PDCCH in a search space, a high-level parameter configures a search space set index s and a control resource set index p for the UE. For a search space set s in the CORESET p, a search space type (CSS/USS) of the search space set s is indicated to the UE by a high-layer parameter, if the search space is a common search space, the UE monitors DCIformat 0_0 and DCI format 1_0 which are carried by the PDCCH and scrambled by one or more RNTIs, as well as DCI format 2_0, DCI format 2_1, DCI format 2_2 and DCI format 2_ 3; if the search space is UE-specific, the UE monitors DCI format0_0, DCI format 1_0, DCI format0_ 1, and DCI format 1_1 carried by the PDCCH. Namely, the DCI format0_0 and the DCI format 1_0 may be transmitted on the CSS and may be transmitted on the USS.

In summary, under the condition that the CSS and the USS overlap, if the UE monitors the DCIformat 0_0/1_0 carried by the PDCCH in the CSS/USS overlapping region, it cannot determine the search space type where the UE is located.

Description of CSS/USS overlap problem in NR:

the following conclusions are made to the MCS table usage method of URLLC in RAN1#93 conference:

for URLLC, the RNTI is specified to be configured by RRC parameters in grant-based transmissions.

If no designated RNTI is configured, the MCS table indicated by the original RRC parameter MCS-table can be extended to 3 types, namely an A type table, a B type table and a C type table.

If the MCS-table indicates the type A table, the MCS table is used according to the following rules:

for DCI format0_0/1_0/0_1/1_1 at CSS, use B type table;

for the DCI format0_0/1_0/0_1/1_1 at the USS, an a-type table is used.

Otherwise, the operation is carried out according to the original operation.

It should be noted that: separate configuration of DL and UL.

If the RRC configures the specified RNTI, the MCS table to be used is selected using the RNTI that scrambles the DCI CRC:

if DCI CRC is scrambled by the specified RNTI, using the A type table; otherwise, the operation is carried out according to the original operation.

Because there may be an overlap between CSS and USS in NR and a PDCCH candidate set carrying DCI belongs to both CSS and USS, at this time, the UE cannot distinguish whether DCI format0_0/1_0 carried by PDCCH is in CSS or USS, that is, it is unreasonable to use whether DCI format0_0/1_0 is in CSS or USS to distinguish using a/B type table, as shown in a dashed box portion in fig. 1, fig. 1 is a schematic diagram of a partial selection rule of MCS table during URLLC grant-based transmission in related art. Therefore, summarizing the above procedure of determining the usage of MCS table type in URLLC, when RRC does not configure a specified RNTI and RRC parameters MCS-table indicate a type a table, differentiating the usage of B-type table or a-type table by CSS and USS may cause protocol ambiguity.

In summary, the cause of protocol ambiguity in the related art has three aspects: 1) CSS and USS may overlap; 2) DCI format0_0/1_0 may be transmitted in both CSS and USS; 3) when CSS/USS overlap, there is no existing operation to indicate the search space type where the information that the UE hears is located.

It should be noted that, in this alternative embodiment, a method for solving the problem that the UE side cannot determine the search space type is provided, and the method may be used in a New Radio Access Technology (NR) communication system. The method proposed in this optional embodiment may be used in a fifth generation (5G) mobile communication system or other wireless wired communication systems, where the data transmission direction is that a base station sends data to a mobile user (downlink transmission service data), or the data transmission direction is that the mobile user sends data to the base station (uplink transmission service data). The mobile user comprises: a mobile device is an access terminal, user terminal, subscriber station, subscriber unit, mobile station, remote terminal, user agent, user device, user equipment, or some other terminology. The Base Station includes an Access Point (AP), or may be referred to as a Node B (nodeb), a Radio Network Controller (Radio Network Controller, RNC), an evolved Node B (eNB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a Base Station (BS), a Transceiver Function (TF), a Radio router, a Radio Transceiver, a basic service unit, an extended service unit, a Radio Base Station (RBS), or some other terminology.

Furthermore, the terms "first," "second," and the like in the description and in the claims, as well as in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Example one

The method provided by the first embodiment of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking the example of the operation on the mobile terminal, fig. 2 is a block diagram of the hardware structure of the mobile terminal for determining the modulation coding order table type according to the embodiment of the present invention. As shown in fig. 1, the mobile terminal 10 may include one or more (only one shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and optionally may also include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 2 is only an illustration, and does not limit the structure of the mobile terminal. For example, the mobile terminal 10 may also include more or fewer components than shown in FIG. 2, or have a different configuration than shown in FIG. 2.

The memory 104 may be used for storing computer programs, for example, software programs and modules of application software, such as a computer program corresponding to the method for determining the modulation coding order table type according to the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, so as to implement the above-mentioned method. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.

In this embodiment, a method for determining a modulation and coding order table type, which is operated in the mobile terminal or the network architecture, is provided, and fig. 3 is a flowchart of the method for determining a modulation and coding order table type according to an embodiment of the present invention, as shown in fig. 3, the flowchart includes the following steps:

step S302, the user equipment UE determines a search space by at least one of the following modes: the predefined search space is a designated search space, the search space is indicated by a parameter of a Radio Resource Control (RRC), a mode for indicating transmission avoidance that causes regions of the search space to be non-overlapping, or a mode for configuring a plurality of control resource sets;

step S304, the UE determines the type of the modulation coding order table according to the determined search space, and/or the corresponding relation between the index for indicating the preset value modulation coding order and the type of the modulation coding order table, and/or the designated parameter for indicating the type of the modulation coding order table used by the UE to distinguish;

through the steps, the UE determines the type of the modulation coding order table according to the determined search space, and/or the corresponding relation between the index for indicating the preset modulation coding order and the type of the modulation coding order table, and/or the designated parameter for indicating and distinguishing the type of the modulation coding order table used by the UE, namely, the search space is determined according to the type of the modulation coding order table, so that the problem that the type of the search space where the information is located cannot be determined due to the overlapping of the CSS and the USS in the related technology is solved, and the blank in the related technology is filled.

In an optional implementation manner of this embodiment, the determining, for the UE in step S302 and step S304, the search space by predefined search space as the specified search space, and the determining the type of the modulation and coding order table includes:

the first method is as follows: when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with a specified Radio Network Temporary Identifier (RNTI), and a parameter for indicating the type of a modulation coding order table is configured as an A type table, and under the condition that an uplink physical shared channel (PUSCH) is scheduled by C-RNTI or SP-CSI-RNTI, if the uplink physical control channel (PUCCH) allocated with the uplink physical shared channel (PUSCH) is in a UE specific search space (USS), the UE determines that the type of the modulation coding order table is an A type table; if an uplink physical control channel PUCCH allocated with an uplink physical shared channel PUSCH is in a common search space CSS, the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, the UE predefines the search space as a specific search space USS of the UE and determines the type of a modulation coding order table as an A type table; or, the UE predefines a search space as a common search space CSS and determines the type of the modulation coding order table as a B type table;

the second method comprises the following steps: when the downlink control information format is DCI format 1_0/1_1, the UE is not configured with designated RNTI information, the type of the configured modulation coding order table is an A type table, and the downlink physical shared channel PDSCH is scheduled by C-RNTI, if a downlink physical control channel PDCCH (physical downlink control channel) which is allocated with the downlink physical shared channel PDSCH is in a UE specific search space USS, the UE determines that the type of the modulation coding order table is the A type table; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, the UE predefines the search space as a specific search space USS of the UE and determines the type of a modulation coding order table as an A type table; or, the UE predefines the search space as a common search space CSS and determines the type of the modulation coding order table as a B type table.

In another optional implementation manner of this embodiment, the determining the search space by indicating the search space through the parameter of the RRC for the UE involved in step S302 and step S304 includes:

the first method is as follows: when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with certain specific RNTI information, the type of the modulation coding order table is configured as an A type table, and the uplink physical shared channel PUSCH is scheduled by C-RNTI or SP-CSI-RNTI, if the uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in the UE specific search space USS, the UE determines that the type of the modulation coding order table is the A type table; if an uplink physical control channel PUCCH allocated with an uplink physical shared channel PUSCH is in a common search space CSS, the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search spaces, the UE indicates that the search spaces are USSs according to the parameters of the RRC and determines that the type of the modulation coding order table is an A type table; or the UE searches a space CSS according to the parameter indication of the RRC and determines the type of the modulation coding order table as a B type table;

the second method comprises the following steps: when the downlink control information format is DCI format 1_0/1_1, the UE is not configured with a certain specific RNTI, the type of the configured modulation coding order table is an A type table, and the PDSCH is scheduled by the C-RNTI; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a specific search space (USS) of the UE, the UE determines that the type of a modulation coding order table is an A type table; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search spaces, the UE indicates that the search spaces are USSs according to the parameters of the RRC and determines that the type of the modulation coding order table is an A type table; or the UE indicates that the search space is the CSS according to the parameters of the RRC and determines that the type of the modulation coding order table is a B type table.

In another optional implementation manner of this embodiment, as to the method for configuring the DCIformat avoiding transmission in the search space overlapping area in step S302, the method includes: the DCI format0_0/1_0 is configured to be transmitted in a non-overlapping region of a common search space CSS and a specific search space USS; and means for indicating that the plurality of control resource sets are configured: different sets of control resources, CORESET, are configured for CSS and USS such that the search spaces do not overlap in the frequency domain.

In a further optional implementation manner of this embodiment, the determining, by the UE in step S302, the type of the modulation and coding order table according to the correspondence between the index used for indicating the preset value modulation and coding order and the type of the modulation and coding order table includes:

the first method is as follows: the UE determines the type of a modulation coding order table to be an A type table between indexes x 1-x 2 of the modulation coding order determined and configured according to the corresponding relation; the UE determines the type of a modulation coding order table to be a B type table between indexes x 2-x 3 of the modulation coding order determined and configured according to the corresponding relation; x1 is an integer of 0 to x2, x2 is an integer of more than x1 to x3, and x3 is an integer of x2 to 31;

the second method comprises the following steps: determining that the type of a modulation coding order table is an A type table by the UE in a first set according to the index of the modulation coding order determined and configured by the corresponding relation; in the second set, determining the index of the configured modulation coding order according to the corresponding relation, and determining the type of the modulation coding order table as a B type table by the UE; wherein the first set is even indices {0,2,4,8,. said., 30} in 0 to 31, and the second set is odd indices {1,3,5,7,. said., 31} in 0 to 31.

In yet another optional implementation manner of this embodiment, for the case that the UE is not configured with the specified radio network temporary identifier and the parameter indicating the MCS table type indicates a table of a type involved in step S304 in this embodiment, the manner that the UE determines the type of the modulation and coding order table according to the specified parameter indicating the type of the modulation and coding order table used by the user equipment UE includes:

the first method is as follows: under the condition that the DCI format0_ 0/0_1 and the aggregation level belong to the third set, the UE determines the type of the modulation coding order table to be an A type table;

the second method comprises the following steps: under the condition that the DCI format0_ 0/0_1 and the aggregation level belong to the fourth set, the UE determines that the type of the modulation coding order table is a B type table;

the third method comprises the following steps: in the case of DCI format 1_0/1_1 and the aggregation level belongs to the third set, the UE determines the type of the modulation and coding order table to be an a type table;

the method is as follows: in the case of DCI format 1_0/1_1 and the aggregation level belongs to the fourth set, the UE determines the type of the modulation and coding order table to be a B type table; wherein the union of the third set and the fourth set is {1,2,4,8,16 }.

In yet another optional implementation manner of this embodiment, in the case that the UE is not configured with the specified radio network temporary identifier and the parameter indicating the MCS table type indicates a table of a type, the determining, by the UE, the type of the modulation and coding order table according to the specified parameter indicating the type of the modulation and coding order table used by the user equipment UE includes:

the first method is as follows: in case of DCI format0_0/1_0/0_1/1_1, the UE determines the type of the search space according to the aggregation level of the search space and the relationship between the aggregation level of the search space and the third set, or the aggregation level of the search space and the fourth set relationship;

the second method comprises the following steps: and the UE determines the modulation coding order table type according to the search space type.

In yet another optional implementation manner of this embodiment, for the case that the UE is not configured with the specified radio network temporary identifier in step S304 of this embodiment, and the parameter indicating the MCS table type indicates a table of type a, the manner for the UE to determine the type of the modulation and coding order table according to the specified parameter indicating the type of the modulation and coding order table used by the user equipment UE in this embodiment includes:

the first method is as follows: under the condition that the DCI format is 0_0/0_1 and the candidate set index is in the fifth set, the UE determines the type of the modulation coding order table to be an A type table;

the second method comprises the following steps: under the condition that the DCI format is 0_0/0_1 and the candidate set index is in the sixth set, the UE determines the type of the modulation coding order table to be a B type table;

the third method comprises the following steps: under the condition that the DCI format 1_0/1_1 is in the fifth set of candidate set indexes, the UE determines the type of the modulation coding order table to be an A type table;

the method is as follows: under the condition that the DCI format 1_0/1_1 is in the sixth set of candidate set indexes, the UE determines the type of the modulation coding order table to be a B type table; wherein the union of the fifth set and the sixth set belongs to { 0-55 }.

the first method is as follows: in the DCI format0_ 0/0_1, and in the case that the cyclic redundancy check mask is the first mask, the UE determines that the type of the modulation coding order table is the a type table;

the second method comprises the following steps: in the DCI format0_ 0/0_1, and in the case that the cyclic redundancy check mask is the second mask, the UE determines that the type of the modulation coding order table is the B-type table;

the third method comprises the following steps: in the DCI format 1_0/1_1 and when the crc mask is the first mask, the UE determines that the type of the modulation coding order table is an a type table;

the method is as follows: in the DCI format 1_0/1_1 and when the crc mask is the second mask, the UE determines that the type of the modulation coding order table is the B type table; wherein the first mask is not equivalent to the second mask.

In yet another optional implementation manner of this embodiment, for the manner in which the UE determines the type of the modulation and coding order table according to the specified parameter for indicating the type of the modulation and coding order table used by the user equipment UE in step S304 in this embodiment, the method includes:

the first method is as follows: under the condition that the UE is not configured with a specified wireless network temporary identifier and the parameter for indicating the MCS table type indicates a type A table, the UE determines that the type of the modulation coding order table is a type B table, and under the condition that the parameter indicates other types of MCS tables except the type A table, the UE determines the type of the modulation coding order table according to the indication information of the parameter indicating the type of the MCS table;

the second method comprises the following steps: configuring a new wireless network temporary identifier at the UE, and if the uplink and downlink physical shared channel is scheduled by the new wireless network temporary identifier, determining the UE to use the A type table; otherwise, the UE determines the type of the modulation coding order table according to the indication information of the parameter for indicating the type of the MCS table.

It should be noted that the MCS table types involved in this embodiment include:

the lowest/highest code rate, and/or the lowest/highest spectral efficiency, and/or the highest order modulation order of the type A table are the same; the type A table at least comprises two modulation coding order tables;

the lowest/highest code rate, and/or the lowest/highest spectral efficiency, and/or the highest order modulation order of the B type table are the same; the type B table at least comprises two modulation coding order tables;

the highest modulation order of the C type table is different from that of the A type table and that of the B type table, wherein the highest code rate of the C type table is the same as that of the B type table; the C type table at least comprises a modulation coding order table;

the highest order modulation order of the A type table is the same as that of the B type table, and the lowest code rates of the A type table are respectively smaller than those of the B type table and the C type table.

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

The invention will now be illustrated with reference to an alternative embodiment of example 1;

embodiments 1 to 8 provide solutions to solve the problem that the UE cannot distinguish the search space type due to the overlapping of CSS and USS and the overlapping of CSS/USS in the related art, so as to achieve the purpose that the UE can explicitly use the modulation and coding order table of the a/B type. Specifically, predefined methods, RRC configuration methods, MCS index mapping relationship reestablishment methods and the like are adopted to enable the UE to make clear the MCS table type when the CSS and the USS are overlapped; the MCS table type used by the UE is distinguished by adopting other parameters, so that the influence of the overlapping problem of the CSS and the USS on the UE is effectively avoided; the method of avoiding and configuring a plurality of CORESETs by transmission is adopted, the overlapping problem of CSS and USS is solved, and the purpose that the UE can clearly search the space type is achieved. The above-described mode is described in detail below with reference to alternative embodiments 1 to 8.

Alternative embodiment 1

The present optional embodiment provides a method for solving the problem that the UE cannot determine the type of the search space where the monitored PDCCH is located when the CSS/USS overlaps, and may be applied to an enhanced mobile Broadband (eMBB) scenario, an Ultra-Reliable and low latency communication (URLLC) scenario, or a large-scale internet of things (mtc) scenario in a new radio access technology NR.

The CSS and USS overlap may cause that the UE cannot distinguish a search space type where DCI format0_0/1_0 carried by the monitored PDCCH is located, at this time, for grant base transmission in the URLLC, if an RRC parameter does not configure a specified RNTI and an MCS-table indicates an a-type MCS table, the UE cannot distinguish the search space type where the UE is located and cannot determine whether to use the a-type MCS table or the B-type MCS table for the DCI format0_0/1_ 0. The type B MCS table is shown in table 6 and table 9 in the appendix, the type a MCS table is shown in table 8 and table 10 in the appendix, and the type C table is shown in table 7 in the appendix.

This optional embodiment adopts a predefined method, defining that when CSS/USS are overlapped, UE selects MCS table to be used according to a certain type of fixed search space; or configuring the search space type of the current PDCCH transmission by the RRC parameter to assist the UE to distinguish the use of the MCS table, and defining one search space type indicated by the RRC parameter search-space-type. The specific operation flow is described in the following scheme.

The method comprises the following steps:

in the first scheme, when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with a specified radio network temporary identifier RNTI, and a parameter for indicating a modulation coding order table type is configured as an a-type table, and an uplink physical shared channel PUSCH is scheduled by a C-RNTI or an SP-CSI-RNTI, if the uplink physical control channel PUCCH to which the uplink physical shared channel PUSCH is allocated is in a UE-specific search space USS, the UE determines that the type of the modulation coding order table is the a-type table; if an uplink physical control channel PUCCH allocated with an uplink physical shared channel PUSCH is in a common search space CSS, the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, predefining the search space as a common search space CSS by the UE and determining the type of a modulation coding order table as a B type table;

when the downlink control information format is DCI format 1_0/1_1, the UE is not configured with designated RNTI information, the type of the configured modulation coding order table is an A type table, and the downlink physical shared channel PDSCH is scheduled by C-RNTI, if a downlink physical control channel PDCCH (physical downlink control channel) which is allocated with the downlink physical shared channel PDSCH is in a UE specific search space USS, the UE determines that the type of the modulation coding order table is the A type table; if a downlink physical control channel (PDCCH) which allocates a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), the UE determines that the type of a modulation coding order table is a B type table; and if the two search spaces are overlapped and the UE cannot determine the type of the search space, predefining the search space as a common search space CSS by the UE and determining the type of the modulation coding order table as a B type table.

The scheme utilizes the characteristic that the DCI format0_0/1_0 carries a bearer for fallback (fall-back) transmission, and when the UE monitors the DCI format0_0/1_0/0_1/1_1, the B-type MCS table is used.

In a second scheme, when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with a specified Radio Network Temporary Identifier (RNTI), and a parameter for indicating the type of a modulation coding order table is configured as an A-type table, and an uplink physical shared channel (PUSCH) is scheduled by the C-RNTI or the SP-CSI-RNTI, if the uplink physical control channel (PUCCH) for allocating the uplink physical shared channel (PUSCH) is in a UE-specific search space (USS), the UE determines that the type of the modulation coding order table is an A-type table; if an uplink physical control channel PUCCH allocated with an uplink physical shared channel PUSCH is in a common search space CSS, the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, predefining the search space as a UE specific search space USS by the UE and determining the type of a modulation coding order table as an A type table;

when the downlink control information format is DCI format 1_0/1_1, the UE is not configured with designated RNTI information, the type of the configured modulation coding order table is an A type table, and the downlink physical shared channel PDSCH is scheduled by C-RNTI, if a downlink physical control channel PDCCH (physical downlink control channel) which is allocated with the downlink physical shared channel PDSCH is in a UE specific search space USS, the UE determines that the type of the modulation coding order table is the A type table; if a downlink physical control channel (PDCCH) which allocates a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), the UE determines that the type of a modulation coding order table is a B type table; and if the two search spaces are overlapped and the UE cannot determine the type of the search space, predefining the search space as the USS of the UE specific search space by the UE and determining the type of the modulation coding order table as an A type table.

The scheme fully considers the characteristic that the DCI format0_0/1_0 is used for backspacing transmission and needs higher reliability for ensuring normal basic work. Compared with the type B MCS table, the code rate and SE supported in the type A MCS table are lower, and the achievable reliability is stronger. Therefore, when the PDCCH carries DCI format0_0/1_0/0_1/1_1, the UE uses an a-type MCS table to guarantee that lower SE can be used.

The RRC parameter configuration method comprises the following steps:

in the first scheme, when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with a certain specific RNTI information, the type of the configured modulation coding order table is an A type table, and the uplink physical shared channel PUSCH is scheduled by C-RNTI or SP-CSI-RNTI, if the uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in the UE specific search space USS, the UE determines that the type of the modulation coding order table is the A type table; if an uplink physical control channel PUCCH allocated with an uplink physical shared channel PUSCH is in a common search space CSS, the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, the UE indicates that the search space is the USS according to the parameters of the RRC and determines that the type of the modulation coding order table is an A type table; or the UE searches a space CSS according to the parameter indication of the RRC and determines the type of the modulation coding order table as a B type table;

when the downlink control information format is DCI format 1_0/1_1, the UE is not configured with a certain specific RNTI, the type of the configured modulation coding order table is an A type table, and the PDSCH is scheduled by the C-RNTI; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a specific search space (USS) of the UE, the UE determines that the type of a modulation coding order table is an A type table; if a downlink physical control channel (PDCCH) which allocates a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, the UE indicates that the search space is the USS according to the parameters of the RRC and determines that the type of the modulation coding order table is an A type table; or the UE indicates that the search space is the CSS according to the parameters of the RRC and determines that the type of the modulation coding order table is a B type table.

According to the scheme, on the basis of the original conclusion flow, when the search spaces are overlapped, RRC parameters are used for configuring the type of the search spaces so as to assist the UE in determining the MCS table to be used.

In the second scheme, if the downlink control information format is DCI format0_ 0/0_1/1_0/1_1, the UE is not configured with a specific RNTI information, and the type of the modulation coding order table is configured as an a-type table, the UE uses an a-type MCS table when the RRC parameter search-space-type indicates the USS; when the RRC parameter search-space-type indicates the CSS, the UE uses the B type MCS table.

The scheme simplifies the original flow, namely the RRC parameter is directly used for configuring the search space type, wherein for the DCI format0_ 1/1_1, the RRC parameter can only be configured to the specific search space type of the UE; for DCI format0_0/1_0, the RRC parameter may configure any one of two search space types of CSS and USS.

Alternative embodiment 2

The CSS and USS overlap may cause that the UE cannot distinguish a search space type where DCI format0_0/1_0 carried by the monitored PDCCH is located, at this time, for grant base transmission in the URLLC, if an RRC parameter does not configure a specified RNTI and an MCS-table indicates an a-type MCS table, the UE cannot distinguish the search space type where the UE is located and cannot determine whether to use the a-type MCS table or the B-type MCS table for the DCI format0_0/1_ 0. The type B MCS table is shown in table 6 and table 9 in the appendix, and the type a MCS table is shown in table 8 and table 10 in the appendix.

The optional embodiment adopts a method of fusing A/B type MCS tables, and defines that when CSS/USS are overlapped, UE uses hybrid MCS tables with partial indexes of the A/B type MCS tables fused, namely MCS indexes (0-31) configured in DCI format respectively correspond to two tables of the A/B type MCS tables, if the configured MCS indexes are in x index set, the UE uses B type MCS tables, and if the configured MCS indexes correspond to the rest MCS indexes, the UE uses A type MCS tables.

The specific operation flow is as follows:

in a first scheme, for grant-based transmission in URLLC, if an RRC is not configured with an appointed RNTI and an MCS-table indicates an A-type MCS table, for DCI format0_0/1_0/0_1/1_1, when CSS and USS are overlapped, if a configured MCS index is between 0 and x, the UE uses a corresponding code rate and SE in the A-type MCS table; if the configured MCS index is between x +1 ~ 31, the UE uses the type B MCS table. Or add the following description to the original conclusion: for the DCI format0_0/1_0/0_1/1_1, when the CSS and the USS are overlapped, the UE correspondingly uses the mapping relation of the type A MCStable according to the configured MCS indexes 0-x and correspondingly uses the type B MCS table according to the MCS indexes x + 1-31.

When the scheme is executed, the lower code rate and SE corresponding to the smaller IMCS in the type A MCS table can be ensured to be used, and the higher code rate and SE corresponding to the larger IMCS in the type B MCS table can be ensured to be used. Taking the a-type MCS table of CP-OFDM and the MCS table1 for PDSCH in TS38.214 in URLLC as an example, if x is 5, then obtaining the fused MCS table according to the above mapping relationship, as shown in table 4, the I corresponding to the a-type MCStable when the MCS index is 0-5_MCSAnd when the MCS index is 6-28, corresponding to the I of the B type MCS table_MCSAnd finally I of A/B type MCS table_MCS29-31 are consistent and reserved. The fused hybrid 64QAM MCS table reserves the lower SE part in the type A MCS table and the high SE part in the type B MCS tableWhen the CSS and the USS are overlapped, the UE can achieve higher reliability and can support high-code-rate transmission.

Table 4 shows hybrid MCS table that can be used for minimum SE when CSS/USS overlap;

scheme two, for grant-based transmission in URLLC, if RRC is not configured with specified RNTI and MCS-table indicates type A MCS table, then for DCI format0_0/1_0/0_1/1_1, if CSS and USS are overlapped, if configured MCS index is in set S_AIf so, the UE uses the corresponding code rate and SE in the type A MCS table; if the configured MCS index is at S_BIn (3), the UE uses the type B MCS table. Or adding the following description in the original MCS table determination procedure: for DCIformat 0_0/1_0/0_1/1_1, when CSS and USS overlap, the UE indexes S according to the configured MCS_ACorrespondingly using type A MCS table and MCS index S_BAnd correspondingly executing the mapping relation using the type B MCS table.

When the scheme is executed, the smaller I in the type A MCS table can be ensured_MCSThe corresponding lowest code rate and SE can be used, and larger I in the B type MCS table is ensured_MCSThe corresponding highest code rate and SE may be used. Take S as an example, take A type MCS table adopting CP-OFDM in URLLC and MCS table1 for PDSCH in TS38.214_AIs an even index {0,2,4, 8., 30}, S } containing 0-31_AIf the index includes odd indexes {1,3,5, 7., 31} in 0-31, a fused MCS table is obtained according to the mapping relationship, as shown in table 5, the MCS index corresponds to the IMCS (green part) of the type a MCStable when the MCS index is even, and corresponds to the IMCS of the type B MCS table when the MCS index is odd. The merged hybrid MCS table not only reserves the lowest code rate and SE in the type A MCS table, but also reserves the highest code rate and SE in the type B MCS table, and the MCS indexes in the two tables respectively account for 50%, thereby ensuring almost all areasThe code rate and SE in the time interval can be obtained, so that when the CSS and the USS are overlapped, the UE can achieve higher reliability and can support high-code-rate transmission.

Table 5 when CSS/USS overlap, hybrid MCS table selected uniformly is guaranteed;

2) using other decision conditions or parameters to distinguish the use of A/B type MCS table when the specified RNTI is not used and the MCS _ table configures the A type MCS table

Alternative embodiment 3

The present embodiment distinguishes the usage of MCS tables by using different types of DCI formats, and defines that when a certain DCI format is used, the UE uses a type B MCS table, and when a DCI format of another type is used, the UE uses a type a MCS table. The specific operation flow is described in the following scheme.

In the first scheme, for grant-based transmission in URLLC, if an RRC is not configured with an appointed RNTI and an MCS-table indicates an A-type MCS table, for DCI format0_0/1_0, the UE uses a corresponding code rate and SE in the A-type MCS table; for DCI format0_ 1/1_1, the UE uses a B-type MCS table.

The scheme considers that the load (payload) of the DCI format0_0/1_0 is small and is mostly used for fallback transmission, and therefore, the requirement on reliability is high. In this case, higher reliability can be achieved using a type a MCStable that can support lower code rate and SE. While the payload of DCI format0_ 1/1_1 is larger, it is reasonable to use a B-type MCS table that can support a higher code rate.

For grant-based transmission in URLLC, if the RRC is not configured with the designated RNTI and the MCS-table indicates the type A MCS table, for DCI format0_0/1_0, the UE uses the corresponding code rate and SE in the type B MCS table; for DCI format0_ 1/1_1, the UE uses an a-type MCS table.

The scheme furthest reserves the classification principle of the original conclusion, and for DCIformat 0_1/1_1 which is monitored only in the USS, the UE still uses the type A MCS table, so that higher transmission reliability is provided; then for DCIformat 0_0/1_0, the UE may support higher code rate and SE using type B MCS table.

Alternative embodiment 4

The optional embodiment uses different aggregation levels or PDCCH candidate set IDs to distinguish MCS tables, or configures different aggregation levels for CSS and USS to distinguish MCS tables, so that when an aggregation level or a candidate set ID in a certain range is defined, UE uses a type B MCS table, and when other aggregation levels or PDCCH candidate set IDs are defined, UE uses a type a MCS table.

The specific operation flow is as follows:

in the first scheme, for grant-based transmission in URLLC, if RRC does not configure specified RNTI and MCS-table indicates type a MCS table, for DCI format0_ 0/0_1/1_0/1_1, when the aggregation level L ∈ S_AWhen the UE uses the type A MCS table, when the aggregation level L belongs to the S_BThe UE uses the type B MCS table. Or adding a description on the basis of the original conclusion: for DCI format0_0/1_0, when the aggregation level L is equal to S_AWhen the UE uses the type A MCStable; when the polymerization level L is equal to S_BThe UE uses the type B MCS table. Wherein S is_A∪ S_B＝{1,2,4,8,16}。

In the scheme, the code rate supported by the type A MCS table in the two MCS tables is lower, higher reliability can be achieved, and the higher CCE aggregation level is usually used for providing more protection for information, so that if S is used, the information is provided_AThe value is {16}, S_BIf the value is {1,2,4,8}, then for DCI format0_ 0/0_1/1_0/1_1, when the CCE aggregation level of the DCI format0_ 0/0_1/1_0/1_1 information monitored by the UE is {16}, using an a-type MCS table; when the CCE aggregation level where the DCIformat 0_0/0_1/1_0/1_1 information monitored by the UE is {1,2,4,8}, a type B MCS table is used.

Scheme two, for grant-base in URLLCd, if the RRC is not configured with the designated RNTI and the MCS-table indicates the type A MCS table, for the DCI format0_ 0/0_1/1_0/1_1, when the index K of the candidate set belongs to K_AWhen the UE uses the type A MCS table, when the index K of the candidate set belongs to K_BThe UE uses the type B MCS table. Or adding a description on the basis of the original conclusion: for DCI format0_0/1_0, when the candidate set index K ∈ K_AWhen the UE uses the type A MCS table, when the index K of the candidate set belongs to K_BThe UE uses the type B MCS table. Wherein the content of the first and second substances,

according to the scheme, when the CCE aggregation level is lower, the number of PDCCH candidate sets is larger, and the DCI format is transmitted on only one candidate PDCCH, so that the UE can perform subsequent operations more clearly by adopting the PDCCH candidate set indexes to distinguish the MCS tables. For example, when the CCE aggregation level is 4, there are 4 PDCCH candidate sets if K_AThe value is {0,1}, K_BIf the value is {2,3}, then for DCI format0_ 0/0_1/1_0/1_1, the candidate PDCCH index K ∈ K when the monitored DCI format0_ 0/0_1/1_0/1_1 is located_AThen, the UE uses the type A MCS table; when the monitored DCI format0_ 0/0_1/1_0/1_1 is located in the candidate PDCCH index K ∈ K_BThe UE uses the type B MCS table.

And for grant-based transmission in the URLLC, if the RRC does not configure the specified RNTI and the MCS-table indicates the a-type MCS table, configuring different aggregation levels for the DCI format0_ 0/0_1/1_0/1_1 to the CSS and the USS, and distinguishing the current search space type by using different CCE aggregation levels according to the first scheme to determine the used MCS table type.

For grant-based transmission in URLLC, when RRC does not configure specified RNTI and MCS-table indicates type a MCS table, for DCI format0_ 0/0_1/1_0/1_1, determining MCS table using CCE aggregation level and candidate set ID is more flexible than the method of distinguishing according to search space type.

Alternative embodiment 5

According to an aspect of the optional embodiment, the method for solving the problem that the UE cannot determine the Type of the search space where the monitored PDCCH is located when the CSS/USS overlap may be applied to an enhanced Mobile Broadband (eMBB) scenario, an Ultra-Reliable and Low Latency Communications (URLLC) scenario, or a large-scale internet of things (mtc) scenario in a new radio access technology NR.

The present embodiment distinguishes the usage of MCS tables by using different types of CRC masks, and defines that when the CRC mask of DCI format is a certain value, the UE uses B type MCS table, and when the CRC mask of DCI format is another value, the UE uses a type MCS table.

The specific operation flow is as follows:

for grant-based transmission in URLLC, if RRC is not configured with specified RNTI and MCS-table indicates type A MCS table, for DCI format0_0/1_0/0_1/1_1, when its CRC mask is X, UE uses type A MCStable, and when its CRC mask is Y, UE uses type B MCS table. Or adding a description on the basis of the original conclusion: for DCI format0_0/1_0, the UE uses an a-type MCS table when its CRC mask is X, and uses a B-type MCS table when its CRC mask is Y. Wherein X and Y are a single value or set.

According to the scheme, the CRC mask value of the DCI format monitored by the UE each time is unique, so that the use of two MCS tables is distinguished by using the CRC mask of DCI format0_ 0/0_1/1_0/1_1, the problem of protocol ambiguity can be completely avoided, and the MCS table type can be definitely used by the UE.

Alternative embodiment 6

The present embodiment employs the designated RNTI to distinguish the use of MCS table. The specific operation flow is described in the following scheme.

For grant-based transmission in URLLC, if RRC is not configured with designated RNTI, UE uses B type MCS table when MCS-table indicates A type MCS table, and UE executes according to indicated table type when MCS-table indicates other types MCS table; if the RRC configuration specifies RNTI, the UE uses the type A MCS table.

The scheme adopts the appointed RNTI to distinguish the use of the type A MCS table, abandons the redundant operation that the type A MCS table is used for the RNTI which is not configured and appointed for the RRC in the original conclusion, and reduces the parameters required to be judged by the UE.

Alternative embodiment 7

The optional embodiment adopts a method of dividing the DCI format information transmission region to distinguish the use of the MCS table.

The specific operation flow is as follows:

for grant-based transmission in URLLC, if the RRC is not configured with the designated RNTI and the MCS-table indicates the A type MCS table, the PDCCH carrying the DCI format0_0/1_0 is specified to be transmitted in the non-overlapping region of the CSS and the USS for the DCI format0_0/1_ 0.

The scheme solves the problem that when the RRC is not configured with the designated RNTI and the MCS-table indicates the type A MCS table, the UE may not distinguish the search space type where the DCI format0_0/1_0 is located due to the overlapping of the CSS and the USS. Through the optional embodiment, the original conclusion does not need to be modified, and the UE can definitely determine the search space type where the DCI format0_0/1_0 is located.

Alternative embodiment 8

The optional embodiment utilizes different CORESET configurations to avoid the overlapping phenomenon of the CSS and the USS, that is, different CORESETs are configured for the CSS and the USS, so that the CSS and the USS of the UE do not overlap.

The specific operation flow is as follows:

for grant-based transmission in URLLC, if RRC does not configure a specified RNTI and MCS-table indicates a type a MCS table, then for DCI format0_0/1_0, different CORESET is configured for CSS and USS of UE, so as to ensure that PDCCH monitored by UE is not in the overlapping region of CSS and USS.

In the case that the resource is sufficient, the configuration of different CORESET for the CSS and the USS can ensure that the CSS and the USS do not overlap. Generally, configuring different CORESET to CSS/USS can prevent blocking and improve reliability.

It should be noted that tables 6 and 9 correspond to the B-type MCS table described in the embodiment, and tables 8 and 10 correspond to the a-type MCS table described in the embodiment. Tables 6 to 10 below are related descriptions of the MCS table.

TABLE 6 MCS INDEX TABLE1 of PDSCH

TABLE 7 MCS INDEX TABLE 2 of PDSCH

TABLE 8 MCS INDEX TABLE 3 of PDSCH

TABLE 9 MCS index Table for PUSCH with transform precoding and 64QAM

TABLE 10 MCS index Table 2 for PUSCH with transform precoding and 64QAM

Example 2

In this embodiment, a device for determining a modulation coding order table type is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and details are not repeated after description is given. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 4 is a schematic structural diagram of an apparatus for determining a modulation coding order table type according to an embodiment of the present invention, and as shown in fig. 4, the apparatus 40 includes: a determining module 42, configured to determine a type of the modulation coding order table according to the determined search space, and/or a corresponding relationship between an index used for indicating a preset value modulation coding order and a type of the modulation coding order table, and/or a specified parameter used for indicating a type of the modulation coding order table used by the user equipment UE to be distinguished; the determining module 42 is further configured to determine the search space by at least one of: the predefined search space is a designated search space, a search space indicated by a parameter of the radio resource control RRC, a manner for indicating transmission avoidance that causes regions of the search space to not overlap, or a manner in which multiple sets of control resources are configured.

Optionally, the determining module 42 is further configured to, when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with a specified radio network temporary identifier RNTI, and a parameter for indicating a modulation and coding order table type is configured as an a-type table, and an uplink physical shared channel PUSCH is scheduled by a C-RNTI or an SP-CSI-RNTI, determine that the type of the modulation and coding order table is the a-type table if an uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in a UE-specific search space USS; if the uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in a common search space CSS, determining the type of the modulation coding order table as a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, predefining the search space as a specific search space USS of the UE and determining the type of a modulation coding order table as an A type table; or predefining a search space as a common search space CSS and determining the type of the modulation coding order table as a B type table;

optionally, the determining module 42 is further configured to, when the downlink control information format is DCI format 1_0/1_1, the UE is not configured with the specified RNTI information, and the type of the modulation and coding order table is configured as an a-type table, and the downlink physical shared channel PDSCH is scheduled by the C-RNTI, determine that the type of the modulation and coding order table is the a-type table if the downlink physical control channel PDCCH on which the downlink physical shared channel PDSCH is allocated is in the UE specific search space USS; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), determining the type of a modulation coding order table as a B type table; if the two search spaces are overlapped and the type of the search spaces cannot be determined, predefining the search spaces as the UE specific search space USS and determining the type of the modulation coding order table as an A type table; or predefining the search space as a common search space CSS and determining the type of the modulation coding order table as a B type table.

Optionally, the determining module 42 is further configured to, when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with a certain specific RNTI information, and the type of the modulation and coding order table is configured as an a-type table, and the uplink physical shared channel PUSCH is scheduled by C-RNTI or SP-CSI-RNTI, determine that the type of the modulation and coding order table is the a-type table if the uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in the UE specific search space USS; if the uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in a common search space CSS, determining the type of the modulation coding order table as a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search spaces, indicating the search spaces as USSs according to the parameters of the RRC and determining the type of the modulation coding order table as an A type table; or according to the parameter indication of RRC, searching space CSS, and determining the type of modulation coding order table as B type table;

optionally, the determining module 40 is further configured to, when the downlink control information format is DCI format 1_0/1_1, the UE is not configured with a certain specific RNTI, and the type of the modulation and coding order table is configured as an a-type table, and the downlink physical shared channel PDSCH is scheduled by a C-RNTI; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a specific search space (USS) of the UE, determining the type of a modulation coding order table as an A type table; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), determining the type of a modulation coding order table as a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search spaces, indicating the search spaces as USSs according to the parameters of the RRC and determining the type of the modulation coding order table as an A type table; or according to the parameter indication of RRC, the search space is CSS, and the type of the modulation coding order table is determined to be B type table.

Note that, the manner for indicating the transmission avoidance that causes the regions of the search space not to overlap is: dcifomat 0_0/1_0/0_1/1_1 is configured to be transmitted in a non-overlapping area of the common search space CSS and the specific search space USS; the manner for indicating the configuration of the plurality of control resource sets is: different sets of control resources, CORESET, are configured for CSS and USS such that the search spaces do not overlap in the frequency domain.

Optionally, the determining module 42 is further configured to determine, between indexes x1 to x2 of the modulation and coding orders determined and configured according to the correspondence, that the type of the modulation and coding order table is an a type table; determining the type of the modulation coding order table as a B type table between indexes x 2-x 3 of the modulation coding order determined and configured according to the corresponding relation; x1 is an integer of 0 to x2, x2 is an integer of more than x1 to x3, and x3 is an integer of x2 to 31;

optionally, the determining module 42 is further configured to determine that the type of the modulation coding order table is an a-type table when the index of the configured modulation coding order is determined to be in the first set according to the corresponding relationship; determining the type of a modulation coding order table as a B type table in a second set according to the index of the modulation coding order determined and configured by the corresponding relation; wherein the first set is even indices {0,2,4,8,. said., 30} in 0 to 31, and the second set is odd indices {1,3,5,7,. said., 31} in 0 to 31.

Optionally, the determining module 42 is further configured to determine, when the DCI format0_ 0/0_1 and the aggregation level belongs to the third set, that the type of the modulation and coding order table is an a-type table; under the condition that the DCI format0_ 0/0_1 and the aggregation level belong to a fourth set, determining the type of the modulation coding order table as a B type table; under the condition that the DCI format 1_0/1_1 and the aggregation level belong to a third set, determining the type of the modulation coding order table as an A type table; in the case that the DCIformat 1_0/1_1 and the aggregation level belong to the fourth set, determining the type of the modulation coding order table as a B type table; wherein the union of the third set and the fourth set is {1,2,4,8,16 }.

Optionally, the determining module 42 is further configured to determine, in the case of DCI format0_0/1_0/0_1/1_1, a type of the search space according to the aggregation level of the search space and a relationship between the aggregation level of the search space and the third set, or a relationship between the aggregation level of the search space and the fourth set; or determining the modulation coding order table type according to the search space type and/or the aggregation level.

Optionally, the determining module 42 is further configured to determine, in the case that the DCI format0_ 0/0_1 is located in the fifth candidate set index, that the type of the modulation coding order table is an a-type table; determining the type of the modulation coding order table as a B type table under the condition that the DCI format is 0_0/0_1 and the candidate set index is in a sixth set; determining the type of the modulation coding order table to be an A type table under the condition that the DCI format 1_0/1_1 is located and the candidate set indexes a fifth set; in the case of DCIformat 1_0/1_1 and the candidate set index sixth set, determining the type of the modulation coding order table as a B type table; wherein the union of the fifth set and the sixth set belongs to { 0-55 }.

Optionally, the determining module 42 is further configured to determine, in the DCI format0_ 0/0_1 and when the crc mask is the first mask, that the type of the modulation coding order table is an a type table; determining the type of the modulation coding order table to be a B type table under the condition that the DCI format0_ 0/0_1 and the cyclic redundancy check mask is the second mask; in DCIformat 1_0/1_1, and in the case that the cyclic redundancy check mask is the first mask, determining the type of the modulation coding order table as an A type table; in the DCI format 1_0/1_1 and under the condition that the cyclic redundancy check mask is the second mask, determining the type of the modulation coding order table to be a B type table; wherein the first mask is not equivalent to the second mask.

Optionally, the determining module 42 is configured to distinguish the table with the type of the modulation coding order table determined to be used as the a or B type according to the search space, and/or the aggregation level information, and/or the DCI format type, and/or the MCS table entry, and/or the candidate set information, and/or the bandwidth part BWP type information in the case that the UE is not configured with the specified wireless network temporary identifier, and the parameter indicating the MCS table type indicates a table of the a type, and determine the type of the modulation coding order table according to the indication information of the parameter indicating the MCS table type in the case that the parameter indicates an MCS table of another type except the a type; under the condition that the UE is configured with a specified new wireless network temporary identifier, if the uplink/downlink physical shared channel is scheduled by the specified wireless network temporary identifier, determining the type of a modulation coding order table related to the specified wireless network temporary identifier; and if the uplink/downlink physical shared channel is not scheduled by the specified wireless network temporary identifier, determining the type of the modulation coding order table according to the indication information of the parameter for indicating the type of the MCS table.

It should be noted that the MCS table types include:

the highest order modulation order of the A type table is the same as that of the B type table, the highest order modulation coding order of the A type table and the B type table is lower than that of the C type table, and the lowest code rates of the A type table and the C type table are respectively lower than those of the B type table and the C type table.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

Embodiments of the present invention also provide a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.

Alternatively, in the present embodiment, the storage medium may be configured to store a computer program for executing the steps of:

step S2, the user equipment UE determines the search space by at least one of: the predefined search space is a designated search space, the search space is indicated by a parameter of a Radio Resource Control (RRC), a mode for indicating transmission avoidance that causes regions of the search space to be non-overlapping, or a mode for configuring a plurality of control resource sets;

step S1, the UE determines the type of the modulation coding order table according to the determined search space, and/or the corresponding relationship between the index for indicating the preset value modulation coding order and the type of the modulation coding order table, and/or the specified parameter for indicating the type of the modulation coding order table used by the UE to be distinguished.

Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.

Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.

Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining a modulation coding order table type, comprising:

and the user equipment UE determines the type of the modulation coding order table according to the determined search space, and/or the corresponding relation between the index for indicating the preset modulation coding order and the type of the modulation coding order table, and/or the specified parameter for indicating and distinguishing the type of the modulation coding order table used by the UE.

2. The method of claim 1, wherein the UE determines the search space by at least one of: the predefined search space is a designated search space, a search space indicated by a parameter of the radio resource control RRC, a manner for indicating transmission avoidance that causes regions of the search space to not overlap, or a manner in which multiple sets of control resources are configured.

3. The method of claim 2, wherein the UE determines the search space by predefining the search space for a specified search space, and wherein determining the type of the modulation and coding order table comprises:

when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with a specified Radio Network Temporary Identifier (RNTI), and a parameter for indicating the type of a modulation coding order table is configured as an A type table, and the uplink physical shared channel (PUSCH) is scheduled by C-RNTI or SP-CSI-RNTI, if the uplink physical control channel (PUCCH) allocated with the uplink physical shared channel (PUSCH) is in a UE specific search space (USS), the UE determines that the type of the modulation coding order table is an A type table; if an uplink physical control channel PUCCH allocated with an uplink physical shared channel PUSCH is in a common search space CSS, the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, predefining the search space as a UE specific search space USS by the UE and determining the type of a modulation coding order table as an A type table; or, the UE predefines a search space as a common search space CSS, and determines the type of the modulation coding order table as a B type table;

when the downlink control information format is DCI format 1_0/1_1, the UE is not configured with designated RNTI information, the type of the configured modulation coding order table is an A type table, and the downlink physical shared channel PDSCH is scheduled by C-RNTI, if a downlink physical control channel PDCCH (physical downlink control channel) which is allocated with the downlink physical shared channel PDSCH is in a UE specific search space USS, the UE determines that the type of the modulation coding order table is the A type table; if a downlink physical control channel (PDCCH) which allocates a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, predefining the search space as a UE specific search space USS by the UE and determining the type of a modulation coding order table as an A type table; or, the UE predefines a search space as a common search space CSS, and determines the type of the modulation coding order table as a B type table.

4. The method of claim 2, wherein the UE determines the search space by indicating the search space through a parameter of the RRC, and wherein determining the type of the modulation and coding order table comprises:

when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with certain specific RNTI information, the type of the modulation coding order table is configured as an A type table, and the uplink physical shared channel PUSCH is scheduled by C-RNTI or SP-CSI-RNTI, if the uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in the UE specific search space USS, the UE determines that the type of the modulation coding order table is an A type table; if an uplink physical control channel PUCCH allocated with an uplink physical shared channel PUSCH is in a common search space CSS, the UE determines that the type of a modulation coding order table is a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, the UE indicates that the search space is the USS according to the parameters of the RRC and determines that the type of the modulation coding order table is an A type table; or the UE searches a space CSS according to the parameter indication of the RRC and determines the type of the modulation coding order table as a B type table;

5. The method of claim 2,

the way to indicate transmission avoidance that makes the regions of the search space non-overlapping is: the DCI format0_0/1_0/0_1/1_1 is configured to be transmitted in a non-overlapping region of the common search space CSS and the specific search space USS;

the manner for indicating the configuration of the plurality of control resource sets is: configuring different control resource sets CORESET for the CSS and the USS so that the search spaces do not overlap in a frequency domain.

6. The method of claim 1, wherein the determining, by the UE, the type of the modulation coding order table according to the correspondence between the index indicating the preset value modulation coding order and the type of the modulation coding order table comprises:

determining the type of a modulation coding order table to be an A type table by the UE between indexes x 1-x 2 of the modulation coding order determined and configured according to the corresponding relation; determining the type of a modulation coding order table to be a B type table by the UE between indexes x 2-x 3 of the modulation coding order determined and configured according to the corresponding relation; the x1 is an integer which is greater than or equal to 0 and less than or equal to x2, the x2 is an integer which is greater than x1 and less than or equal to x3, and the x3 is an integer which is greater than or equal to x2 and less than or equal to 31; or the like, or, alternatively,

determining that the type of a modulation coding order table is an A type table by the UE in a first set according to the index of the configured modulation coding order determined by the corresponding relation; determining, by the UE, that the type of the modulation coding order table is a B-type table in a second set of indexes of the modulation coding orders determined to be configured according to the correspondence; wherein the first set is even indices {0,2,4, 8.., 30} of 0 to 31, and the second set is odd indices {1,3,5, 7.., 31} of 0 to 31.

7. The method of claim 1, wherein the UE determining the type of the modulation and coding order table according to a specified parameter indicating a type of the modulation and coding order table used by a User Equipment (UE) for distinguishing comprises:

in the case that the DCI format0_ 0/0_1 and the aggregation level belong to the third set, the UE determines the type of the modulation and coding order table to be an a-type table;

in the case that the DCI format0_ 0/0_1 and the aggregation level belong to the fourth set, the UE determines that the type of the modulation coding order table is a B-type table;

in the case that the DCI format 1_0/1_1 and the aggregation level belong to the third set, the UE determines the type of the modulation and coding order table to be an a-type table;

in the case that the DCI format 1_0/1_1 and the aggregation level belong to the fourth set, the UE determines that the type of the modulation coding order table is a B-type table;

wherein the union of the third set and the fourth set is {1,2,4,8,16 }.

8. The method of claim 7, wherein the UE determining the type of the modulation and coding order table according to a specified parameter indicating a type of the modulation and coding order table used by the UE for distinguishing comprises:

in case of DCI format0_0/1_0/0_1/1_1, the UE determines a type of search space according to an aggregation level of the search space and a relationship between the aggregation level of the search space and the third set, or the aggregation level of the search space and the fourth set relationship;

and the UE determines the modulation coding order table type according to the search space type and/or the aggregation level.

9. The method of claim 1, wherein the UE determining the type of the modulation and coding order table according to a specified parameter indicating a type of the modulation and coding order table used by a User Equipment (UE) for distinguishing comprises:

in the case of DCI format0_ 0/0_1 and the candidate set index of the fifth set, the UE determines the type of the modulation coding order table to be an a-type table;

in the case of DCI format0_ 0/0_1 and the candidate set index sixth set, the UE determines the type of modulation coding order table to be a B-type table;

in the case of DCI format 1_0/1_1 and the candidate set index of the fifth set, the UE determines the type of the modulation coding order table to be an a-type table;

in the case of DCI format 1_0/1_1 and the candidate set index sixth set, the UE determines the type of the modulation coding order table to be a B-type table;

wherein the union of the fifth set and the sixth set belongs to { 0-55 }.

10. The method of claim 1, wherein the UE determining the type of the modulation and coding order table according to a specified parameter indicating a type of the modulation and coding order table used by a User Equipment (UE) for distinguishing comprises:

in the DCI format0_ 0/0_1, and in the case that the cyclic redundancy check mask is the first mask, the UE determines the type of the modulation coding order table to be an a type table;

in DCI format0_ 0/0_1, and in the case that the cyclic redundancy check mask is the second mask, the UE determines the type of the modulation coding order table to be a B-type table;

in the DCI format 1_0/1_1 and when the cyclic redundancy check mask is the first mask, the UE determines that the type of the modulation coding order table is an a type table;

in the DCI format 1_0/1_1 and when the cyclic redundancy check mask is the second mask, the UE determines that the type of the modulation coding order table is the B type table;

wherein the first mask is not commensurate with the second mask.

11. The method of claim 1, wherein the UE determining the type of the modulation and coding order table according to a specified parameter indicating a type of the modulation and coding order table used by a User Equipment (UE) for distinguishing comprises:

in the case that the UE is not configured with a specified wireless network temporary identifier and a parameter indicating an MCS table type indicates a table of an a type, the UE distinguishes a table determining a type of a used modulation coding order table as an a or B type according to search space, and/or aggregation level information, and/or a DCI format type, and/or an MCS table entry, and/or candidate set information, and/or bandwidth part BWP type information, and in the case that the parameter indicates a MCS table of another type except the a type, the UE determines a type of the modulation coding order table according to indication information of the parameter indicating the MCS table type;

under the condition that the UE is configured with the specified wireless network temporary identifier, if the uplink/downlink physical shared channel is scheduled by the specified wireless network temporary identifier, the UE determines to use the type of the modulation coding order table related to the specified wireless network temporary identifier; and if the uplink/downlink physical shared channel is not scheduled by the appointed wireless network temporary identifier, the UE determines the type of the modulation coding order table according to the indication information of the parameter for indicating the type of the MCS table.

12. The method of claim 11, wherein the MCS table type comprises:

the lowest/highest code rate, and/or the lowest/highest spectral efficiency, and/or the highest order modulation order of the type A table are the same; wherein, the A type table at least comprises two modulation coding order tables;

the lowest/highest code rate, and/or the lowest/highest spectral efficiency, and/or the highest order modulation order of the B type table are the same; wherein, the type B table at least comprises two modulation coding order tables;

the highest modulation order of the C type table is different from the A type table and the B type table, wherein the highest code rate of the C type table is the same as that of the B type table; the C type table at least comprises a modulation coding order table;

the highest order modulation order of the A type table is the same as that of the B type table, the highest order modulation coding order of the A type table and that of the B type table are lower than that of the C type table, and the lowest code rates of the A type table and that of the C type table are respectively smaller than the lowest code rates of the B type table and that of the C type table.

13. An apparatus for determining a modulation coding order table type, comprising:

and the determining module is used for determining the type of the modulation coding order table according to the determined search space, and/or the corresponding relation between the index for indicating the preset value modulation coding order and the type of the modulation coding order table, and/or the specified parameter for indicating and distinguishing the type of the modulation coding order table used by the user equipment UE.

14. The apparatus of claim 13,

the determining module is further configured to determine the search space by at least one of: the predefined search space is a designated search space, a search space indicated by a parameter of the radio resource control RRC, a manner for indicating transmission avoidance that causes regions of the search space to not overlap, or a manner in which multiple sets of control resources are configured.

15. The apparatus of claim 14,

the determining module is further configured to determine, when the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with a specified radio network temporary identifier RNTI, and a parameter for indicating a modulation coding order table type is configured as an a-type table, and an uplink physical shared channel PUSCH is scheduled by a C-RNTI or an SP-CSI-RNTI, that the type of the modulation coding order table is the a-type table if the uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in a UE-specific search space USS; if the uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in a common search space CSS, determining the type of the modulation coding order table as a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, predefining the search space as a specific search space USS of the UE and determining the type of a modulation coding order table as an A type table; or predefining a search space as a common search space CSS and determining the type of the modulation coding order table as a B type table;

the determining module is further configured to determine, when the downlink control information format is DCI format 1_0/1_1, the UE is not configured with the specified RNTI information, and the type of the modulation and coding order table is configured as an a-type table, and when the downlink physical shared channel PDSCH is scheduled by the C-RNTI, if a downlink physical control channel PDCCH on which the downlink physical shared channel PDSCH is allocated is in the UE-specific search space USS, the type of the modulation and coding order table is the a-type table; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), determining the type of a modulation coding order table as a B type table; if the two search spaces are overlapped and the type of the search spaces cannot be determined, predefining the search spaces as the UE specific search space USS and determining the type of the modulation coding order table as an A type table; or predefining the search space as a common search space CSS and determining the type of the modulation coding order table as a B type table.

16. The apparatus of claim 14,

the determining module is further configured to determine that the type of the modulation and coding order table is an a-type table if an uplink physical control channel (PUCCH) allocated with the uplink physical shared channel (PUSCH) is in a UE specific search space (USS) under the condition that the downlink control information format is DCI format0_ 0/0_1, the UE is not configured with certain specific RNTI information, the type of the modulation and coding order table is configured as an A-type table, and the uplink physical shared channel (PUSCH) is scheduled by C-RNTI or SP-CSI-RNTI; if the uplink physical control channel PUCCH allocated with the uplink physical shared channel PUSCH is in a common search space CSS, determining the type of the modulation coding order table as a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, indicating the search space to be USS according to the parameters of the RRC and determining the type of the modulation coding order table to be an A type table; or according to the parameter indication of the RRC, searching a space CSS, and determining the type of a modulation coding order table as a B type table;

the determining module is further configured to configure the UE with a specific RNTI if the downlink control information format is DCI format 1_0/1_1, and the type of the modulation and coding order table is an a type table, and the downlink physical shared channel PDSCH is scheduled by the C-RNTI; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a specific search space (USS) of the UE, determining the type of a modulation coding order table as an A type table; if a downlink physical control channel (PDCCH) which is allocated with a downlink physical shared channel (PDSCH) is in a Common Search Space (CSS), determining the type of a modulation coding order table as a B type table; if the two search spaces are overlapped and the UE cannot determine the type of the search space, indicating the search space to be USS according to the parameters of the RRC and determining the type of the modulation coding order table to be an A type table; or according to the parameter indication search space of the RRC is CSS, and the type of the modulation coding order table is determined to be a B type table.

17. The apparatus of claim 14,

18. The apparatus of claim 13,

the determining module is further configured to determine the type of the modulation coding order table as an a type table between indexes x1 to x2 of the modulation coding order determined and configured according to the correspondence; determining the type of the modulation coding order table to be a B type table between indexes x 2-x 3 of the modulation coding order determined and configured according to the corresponding relation; the x1 is an integer which is greater than or equal to 0 and less than or equal to x2, the x2 is an integer which is greater than x1 and less than or equal to x3, and the x3 is an integer which is greater than or equal to x2 and less than or equal to 31; or the like, or, alternatively,

the determining module is further configured to determine that the type of the modulation coding order table is an a-type table when the index of the configured modulation coding order is determined to be in the first set according to the corresponding relationship; determining the type of a modulation coding order table as a B type table in a second set according to the index of the modulation coding order determined and configured by the corresponding relation; wherein the first set is even indices {0,2,4, 8.., 30} of 0 to 31, and the second set is odd indices {1,3,5, 7.., 31} of 0 to 31.

19. The apparatus of claim 13,

the determining module is further configured to determine that the type of the modulation and coding order table is an a type table when the DCI format0_ 0/0_1 and the aggregation level belong to the third set; under the condition that the DCI format0_ 0/0_1 and the aggregation level belong to a fourth set, determining the type of the modulation coding order table as a B type table; under the condition that the DCI format 1_0/1_1 and the aggregation level belong to a third set, determining the type of the modulation coding order table as an A type table; under the condition that the DCI format 1_0/1_1 and the aggregation level belong to a fourth set, determining the type of the modulation coding order table as a B type table; wherein the union of the third set and the fourth set is {1,2,4,8,16 }.

20. The apparatus of claim 19,

the determining module is further configured to determine, in the case of DCI format0_0/1_0/0_1/1_1, a type of a search space according to an aggregation level of the search space and a relationship between the aggregation level of the search space and the third set, or the aggregation level of the search space and the fourth set relationship; or determining the modulation coding order table type according to the search space type and/or the aggregation level.

21. The apparatus of claim 13,

the determining module is further configured to determine that the type of the modulation coding order table is an a type table under the condition that the DCI format0_ 0/0_1 is located and the candidate set index is the fifth set; determining the type of the modulation coding order table as a B type table under the condition that the DCI format is 0_0/0_1 and the candidate set index is in a sixth set; determining the type of the modulation coding order table to be an A type table under the condition that the DCI format 1_0/1_1 is located and the candidate set indexes a fifth set; determining the type of the modulation coding order table as a B type table under the condition that the DCI format 1_0/1_1 is located and the candidate set indexes a sixth set; wherein the union of the fifth set and the sixth set belongs to { 0-55 }.

22. The apparatus of claim 13,

the determining module is further configured to determine that the type of the modulation coding order table is an a type table in the DCI format0_ 0/0_1 and when the cyclic redundancy check mask is the first mask; determining the type of the modulation coding order table to be a B type table under the condition that the DCI format0_ 0/0_1 and the cyclic redundancy check mask is the second mask; in the DCI format 1_0/1_1 and under the condition that the cyclic redundancy check mask is the first mask, determining the type of the modulation coding order table as an A type table; in the DCI format 1_0/1_1 and under the condition that the cyclic redundancy check mask is the second mask, determining the type of the modulation coding order table to be a B type table; wherein the first mask is not commensurate with the second mask.

23. The apparatus of claim 13,

the determining module is configured to distinguish a table determining a type of a used modulation coding order table as an a or B type according to a search space and/or aggregation level information and/or a DCIformat type and/or an MCS table entry and/or candidate set information and/or bandwidth part BWP type information in the case that the UE is not configured with a specified wireless network temporary identifier and a parameter indicating an MCS table type indicates an a type table, and determine a type of a modulation coding order table according to indication information of a parameter indicating an MCS table type in the case that the parameter indicates an MCS table of another type except the a type; under the condition that the UE is configured with a specified new wireless network temporary identifier, if the uplink/downlink physical shared channel is scheduled by the specified wireless network temporary identifier, determining to use the type of a modulation coding order table related to the specified wireless network temporary identifier; and if the uplink/downlink physical shared channel is not scheduled by the specified wireless network temporary identifier, determining the type of the modulation coding order table according to the indication information of the parameter for indicating the type of the MCS table.

24. The apparatus of claim 23, wherein the MCS table types comprise:

25. A storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of any of claims 1 to 12 when executed.

26. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 12.