CN110546970B

CN110546970B - Information indication method, information determination method, information indication device, information determination device, communication equipment and storage medium

Info

Publication number: CN110546970B
Application number: CN201980001431.0A
Authority: CN
Inventors: 牟勤
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2023-11-24
Anticipated expiration: 2039-07-17
Also published as: WO2021007827A1; CN110546970A

Abstract

The application discloses an information indication method, an information determination device, a communication device and a storage medium. The information indication method comprises the following steps: and according to the mapping relation between the repeated transmission times of the transmission block TB and the modulation and coding strategy MCS, issuing joint indication information, wherein the joint indication information is used for indicating the repeated transmission times of the scheduled TB and simultaneously indicating the MCS by indicating the mapping relation.

Description

Information indication method, information determination method, information indication device, information determination device, communication equipment and storage medium

Technical Field

The present application relates to the field of wireless communications, and in particular, but not limited to a method and apparatus for indicating and determining information, a communication device, and a storage medium.

Background

Machine type communication technology (MTC, machine Type Communication) is a typical representation of cellular internet of things technology. Currently, MTC technology has been widely used in smart cities, such as meter reading; information acquisition of intelligent agriculture such as temperature and humidity; intelligent transportation, such as sharing bicycles. Terminals applying MTC technology may be referred to as MTC terminals.

But during the scheduling process of the MTC terminal for information transmission, it is found that: there is a problem in that signaling overhead is large.

Disclosure of Invention

The embodiment of the application discloses an information indication and determination method and device, communication equipment and a storage medium.

A first aspect of an embodiment of the present application provides an information indication method, which is applied to a base station, and includes:

and according to the mapping relation between the repeated transmission times of the (Transmission Block, TB) and the modulation coding strategy (Modulation Coding Strategy, MCS), issuing joint indication information, wherein the joint indication information is used for indicating the repeated transmission times of the scheduled TB and simultaneously indicating the MCS by indicating the mapping relation.

A second aspect of an embodiment of the present application provides an information determining method, applied to a terminal, including:

receiving joint indication information;

and determining the repeated transmission times of the transmission block TB according to the mapping relation indicated by the joint indication information, and determining a modulation coding strategy MCS.

A third aspect of an embodiment of the present application provides an information indicating apparatus, including:

the transmitting module is configured to transmit joint indication information according to the mapping relation between the repeated transmission times of the transmission block TB and the modulation and coding strategy MCS, wherein the joint indication information is used for indicating the repeated transmission times of the scheduled TB and simultaneously indicating the MCS by indicating the mapping relation.

A fourth aspect of the present application provides an information determining apparatus, including:

a receiving module configured to receive the joint indication information;

and the determining module is configured to determine the repeated transmission times of the transmission block TB according to the mapping relation indicated by the joint indication information and determine the modulation coding strategy MCS.

A fifth aspect of an embodiment of the present application provides a communication device, including:

an antenna;

a memory;

and a processor, respectively connected to the antenna and the memory, configured to control the transceiving of the antenna by executing the computer executable instructions stored on the memory, and capable of implementing the method provided in the first aspect and/or the second aspect.

A sixth aspect of the embodiments of the present application provides a computer storage medium storing computer executable instructions that, when executed by a processor, implement the method provided in the first and/or second aspects.

According to the technical scheme provided by the embodiment of the application, when the indication of the repeated transmission times and the MCS is carried out, different information fields in DCI are not used for respectively indicating the repeated transmission times and the MCS, but combined indication information is used, and the terminal base station is informed of the repeated transmission times and the MCS of the TB configured for the terminal base station through indicating the mapping relation between the repeated transmission times and the MCS, so that the indication can be completed by only using one combined indication information, and the signaling cost is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic structural diagram of a wireless system according to an embodiment of the present application;

fig. 2 is a flow chart of an information indication method according to an embodiment of the present application;

fig. 3 is an indication schematic diagram of an MPDCCH message of an MTC terminal according to an embodiment of the application;

fig. 4 is a flowchart of another information indication method according to an embodiment of the present application;

fig. 5 is a schematic flow chart of an information determining method according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an information indicating device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another information determining apparatus according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a base station according to an embodiment of the present application.

Detailed Description

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

Referring to fig. 1, a schematic structural diagram of a wireless communication system according to an embodiment of the present application is shown. As shown in fig. 1, the wireless communication system is a communication system based on a cellular mobile communication technology, and may include: a number of terminals 110 and a number of base stations 120.

Where terminal 110 may be a device that provides voice and/or data connectivity to a user. Terminal 110 may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), and terminal 110 may be an internet of things terminal such as a sensor device, a mobile phone (or "cellular" phone), and a computer with an internet of things terminal, for example, a fixed, portable, pocket, hand-held, computer-built-in, or vehicle-mounted device. Such as a Station (STA), subscriber unit (subscriber unit), subscriber Station (subscriber Station), mobile Station (mobile), remote Station (remote Station), access point, remote terminal (remote terminal), access terminal (access terminal), user equipment (user terminal), user agent (user agent), user device (user equipment), or User Equipment (UE). Alternatively, terminal 110 may be an unmanned aerial vehicle device. Alternatively, the terminal 110 may be a vehicle-mounted device, for example, a laptop with a wireless communication function, or a wireless communication device externally connected to the laptop. Alternatively, the terminal 110 may be a roadside device, for example, a street lamp, a signal lamp, or other roadside devices having a wireless communication function.

The base station 120 may be a network-side device in a wireless communication system. Wherein the wireless communication system may be a fourth generation mobile communication technology (the 4th generation mobile communication,4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; alternatively, the wireless communication system may be a 5G system, also known as a New Radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a next generation system of the 5G system. Among them, the access network in the 5G system may be called NG-RAN (New Generation-Radio Access Ne twork, new Generation radio access network).

The base station 120 may be an evolved node b (eNB) employed in a 4G system. Alternatively, the base station 120 may be a base station (gNB) in a 5G system that employs a centralized and distributed architecture. When the base station 120 adopts a centralized and distributed architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DUs). A protocol stack of a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, and a medium access control (Media Access Control, MAC) layer is provided in the centralized unit; a Physical (PHY) layer protocol stack is disposed in the distribution unit, and the specific implementation of the base station 120 is not limited in the embodiment of the present application.

A wireless connection may be established between base station 120 and terminal 110 over a wireless air interface. In various embodiments, the wireless air interface is a fourth generation mobile communication network technology (4G) standard-based wireless air interface; or, the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G-based technology standard of a next generation mobile communication network.

In some embodiments, an E2E (End to End) connection may also be established between terminals 110. Such as V2V (vehicle to vehicle, vehicle-to-vehicle) communications, V2I (vehicle to Infrastructure, vehicle-to-road side equipment) communications, and V2P (vehicle to pedestrian, vehicle-to-person) communications among internet of vehicles communications (vehicle to everything, V2X).

In some embodiments, the wireless communication system described above may also include a network management device 130.

Several base stations 120 are respectively connected to a network management device 130. The network management device 130 may be a core network device in a wireless communication system, for example, the network management device 130 may be a mobility management entity (Mobility Management Entity, MME) in an evolved packet core network (Evol ved Packet Core, EPC). Alternatively, the network management device may be other core network devices, such as a Serving GateWay (SGW), a public data network GateWay (Public Data Network GateWay, PGW), a policy and charging rules function (Policy and Charging Rules Function, PCRF) or a home subscriber server (Home Subscriber Server, HSS), etc. The embodiment of the present application is not limited to the implementation form of the network management device 130.

As shown in fig. 2, the present embodiment provides an information indication method, including:

and according to the mapping relation between the repeated transmission times of the TB and the MCS, issuing joint indication information, wherein the joint indication information is used for indicating the repeated transmission times of the scheduled TB and simultaneously indicating the MCS by indicating the mapping relation.

The information indication method provided by the embodiment can be applied to a base station. Here TB is a content block; different TBs contain different data content. The TB here may be a transport block proposed in MTC technology. Before the MTC terminal performs data transmission by using the TB, the MTC physical downlink control channel (MTC Physical Downlink Control Channel, MPDCCH) may be used to schedule the TB transmission, for example, downlink control information (Downlink Control Information, DCI) issued by the MPDCCH indicates information such as the TB, the number of TBs, and the number of repeated transmissions of one TB.

In this embodiment, the number of repeated transmissions may be any positive integer, and by configuring the number of repeated transmissions, the number of repeated transmissions of one TB is determined, and by the repeated transmissions, the reliability of the transmission may be ensured. Thus, when one transmission is unsuccessful, the TB can be successfully received by repeating the transmission; for another example, when a transmission does not completely successfully receive a corresponding TB, the transmission success rate of the TB may be ensured by joint decoding through multiple receptions of repeated transmissions.

The base station pre-configures the mapping relation between the repeated transmission times of the TB and the MCS; or, the mapping relation between the repeated transmission times of the TB and the MCS is preset in the communication protocol.

The mapping relation can also be realized by the base station to be transmitted to the terminal.

In some embodiments, the number of retransmissions of the TB and the MCS are indicated using different information fields, and the number of bits occupied by each information field is in turn related to the number of alternatives for the number of retransmissions of the TB and the number of alternatives for the MCS. For example, the number of repeated transmissions is indicated by M1 bits, the MCS is indicated by M2 bits, and thus at least m1+m2 bits are consumed in total. In this embodiment, the joint indication information indicates the mapping relationship between the number of repeated transmissions of the TB and the MCS, for example, N (N is less than m1+m2) bits may be used to indicate all the mapping relationships, and after receiving the N-bit joint indication information, the terminal may determine the number of repeated transmissions indicated by the base station and the MCS at the same time, thereby reducing signaling overhead.

Table 1 is a mapping relationship table among the joint indication information, the number of repeated transmissions, and the MCS:

TABLE 1

The number of repeated transmissions R1, R2, R3, and R4 in table 1 may be any positive integer.

In some embodiments, R1, R2, R3, and R4 increase sequentially.

If the mapping relationship between the number of repeated transmissions and the MCS in table 1 is adopted, the indication of the number of repeated transmissions and the MCS level can be completed simultaneously only by 5 bits.

The TB in this embodiment may be a TB allocated to an MTC terminal. In the present embodiment, it is considered that MTC terminals are devices with relatively weak processing power compared to non-MTC terminals (e.g., mobile phone terminals, etc.), since most of the MTC terminals are located in places where network coverage conditions are not good, such as indoors. Therefore, coverage enhancement needs to be performed on the MTC terminal, for example, the same content is repeatedly transmitted in multiple transmission time units, and the receiving end (for example, the MTC terminal) performs information recovery in association with the repeatedly transmitted content. The number of retransmissions is typically set according to the channel conditions. The worse the channel condition, the greater the number of repeated transmissions.

Specifically, MTC has two coverage enhancement modes, coverage enhancement mode a and coverage enhancement mode B.

The coverage enhancement mode a is applied in the case of better channel conditions, so the number of supportable retransmissions in the coverage enhancement mode a is relatively small.

Coverage enhancement mode B is typically applied in cases where channel conditions are poor, so the number of supportable retransmissions is large.

In both coverage increasing modes, the base station first configures a plurality of optional retransmission times for the terminal through higher layer signaling (e.g., RRC signaling), such as 4 optional retransmission times. The base station sets a proper repeated transmission number in a plurality of alternative repeated transmission numbers according to the current channel condition and MCS of the user, and indicates in DCI. The higher layer signaling herein may be signaling above the physical layer, e.g., through Medium Access Control (MAC) layer signaling or Radio Resource Control (RRC) signaling layer signaling, for example.

The MTC terminal supports different modulation and demodulation schemes to cope with different channel scenes. For example, in MTC coverage enhancement mode a, the MCS in 16 is supported. The 16 MCSs may carry different numbers of bits in different resource allocations.

In Table 2, I _MCS Numbering of MCS levels, I _TBS Is the number of the corresponding TBS. N (N) _PRB Is the amount of physical resources allocated to the user. In Table 2The numbers of (2) represent the information bits carried by the data blocks transmitted under different modulation and coding schemes and different resource configurations. Such as when I _MCS 9,N of a shape of 9,N _PRB The corresponding data block has a size of 936, 6.

TABLE 2

The transport block set (Transmission Block Set, TBS) in table 2 refers to a combination of PRB allocation and MCS level.

One MPDCCH message of an MTC terminal may be used to schedule one MTC terminal physical downlink shared channel (MPDSCH) or Physical Uplink Shared Channel (PUSCH). The MTC terminal needs to receive and blindly check the MPDCCH before receiving or transmitting data. When the MTC terminal transmits or a data packet with a large data size, it needs to be scheduled for several rounds.

In most cases, the scheduling content of MPDCCH is similar several times because the channel conditions are similar. Even in this case, the terminal still needs to demodulate the MPDCCH scheduled each time, consuming power. In order to reduce power consumption, the MPDCCH scheduling method shown in fig. 3 of the MTC terminal in the embodiment of the application.

In fig. 3, an MPDCCH message at one time schedules transmission of MPDSCH at 4 times. In fig. 3, the 4 MPDSCHs are MPDSCH1, MPDSCH2, MPDSCH3, and MPDSCH4, respectively.

The joint indication information in this embodiment may be information carried in an MPDCCH message. The MPDCCH message is a message transmitted using the MPDCCH. In MTC coverage enhancement mode a, at most 8 downlink received TBs may be scheduled by one DCI issued by the MPDCCH. In coverage enhancement mode B, DCI issued by one MPDCCH may schedule up to 4 downlink received TBs. The joint indication information issued by the base station may be DCI transmitted when the MTC terminal is in enhanced coverage mode a or enhanced coverage mode B.

In some embodiments, the mapping relationship between the number of repeated transmissions of the TB and the MCS includes:

the number of repeated transmissions of the TB and the mapping relation between different MCS levels.

As can be seen from table 1, the repeated transmission times R1, R2, R3 and R4 all correspond to different MCS levels; and the bit values of the 5 bits corresponding to different mapping relations are different, so that the terminal can clearly know the repeated transmission times and the MCS level indicated by the current base station by receiving the joint indication information of the 5 bits issued by the base station.

The enhanced coverage effects of different MCS levels are different, so in this embodiment, when the mapping relationship between the MCS level and the number of repeated transmissions is established, the enhanced coverage effect and the number of repeated transmissions are considered in balance, so as to ensure the success rate of receiving at the receiving end such as the MTC terminal.

In some embodiments, the mapping relationship between the number of repeated transmission times of the TB and different MCS levels includes:

a first set of numbers, a mapping relationship between MCS levels above a first threshold, wherein the first set of numbers comprises: one or more repeat transmissions;

and/or the number of the groups of groups,

a second set of times, a mapping relationship between MCS levels equal to or lower than a first threshold, wherein the second set of times comprises: one or more repeat transmissions;

Wherein the number of the repeated transmission times contained in the second time set is different from the number of the repeated transmission times contained in the first time set, and/or at least one of the contained repeated transmission times is different.

For example, the number of MCS levels supported by the MTC terminal is 16, and 0 to 15 respectively. The first threshold here is a level threshold of the MCS level.

In this embodiment, the first set of times and the second set of times comprise at least one repeat transmission time. The first time number set and the second time number set contain different numbers of repeated transmission times, or the numbers are the same but the repeated transmission times have different values.

In this embodiment, the MCS level supported by the terminal is at least in two sub-ranges based on the first threshold, and a first number set and a second number set are set for the two sub-ranges respectively. Therefore, the joint indication information can simply tell the terminal the repeated transmission times of the TB indicated by the current base station and the MCS level allowed to be used by the terminal through indicating the mapping relation.

In some embodiments, the sending the joint indication information according to the mapping relation between the repeated transmission times of the transport block TB and the modulation coding strategy MCS includes:

and issuing joint indication information according to the mapping relation between the repeated transmission times of the TB, the MCS and the quantity of the TB, wherein the joint indication information is also used for indicating the quantity of the TB by indicating the mapping relation.

In this embodiment, the mapping relationship is further a mapping relationship among the number of repeated transmissions, MCS and TB number.

The number of TBs is the number of different TBs, i.e. the number of TBs transmitting different content. The number of TBs is related to the amount of data that the terminal needs to transmit.

Table 3 is a mapping relationship between the number of repeated transmission times of the TB, the MCS and the number of TBs provided in the embodiment of the present application.

TABLE 3 Table 3

In this embodiment, the information field can be used to fully carry the joint indication information, and the number of repeated transmission, the number of TBs and the MCS level are indicated at the same time, so that signaling overhead is saved again.

For example, according to table 3, the mapping relationship among the number of repeated transmissions, MCS and number of TBs is defined, and the indication may be completed using only 6 bits.

In some embodiments, as shown in fig. 4, the method provided in the embodiment of the present application may specifically be:

and according to the repeated transmission times of the TB, the mapping relation between the MCS and the quantity of the TB is related, and the joint indication information is issued.

The mapping relation between the repeated transmission times of the TB, the MCS and the number of the TB comprises the following steps:

a third time set, a mapping relation between the third time set and the first TB number and the first MCS set, wherein the third time set comprises at least one repeated transmission time; the first MCS set includes at least one MCS level;

And/or the number of the groups of groups,

a fourth set of numbers, a mapping relationship between the fourth set of numbers and the second number of TBs and the second MCS set,

wherein the fourth set of numbers comprises at least one repeat transmission number; the second MCS set includes at least one MCS level.

Referring to table 3, if the first TB number is 1, the MCS level may be 0 to 15, i.e., the first MCS set may include MCS levels numbered 0 to 15. Meanwhile, the corresponding retransmission times may vary in R1 to R4 based on the first TB number and the MCS level.

For another example, if the second number is 2, the MCS level may be 9 to 15, i.e., the second MCS set may include MCS levels numbered 9 to 15. Meanwhile, the corresponding number of repeated transmissions may vary from R3 to R4 based on the second TB number and the MCS level.

For another example, the first TB number is 3, and the MCS levels may be 11 and 13, i.e., the first MCS set may include MCS levels numbered 0 and 13. Meanwhile, the corresponding retransmission times may vary in R3 to R4 based on the first TB number and the MCS level.

In some embodiments, the second TB number is greater than the first TB number;

the second MCS set contains more MCS levels than the first MCS set;

The number of the repeated transmission times contained in the third time set is more than the number of the repeated transmission times contained in the fourth time set; and/or the average value of the repeated transmission times contained in the third time set is smaller than the average value of the repeated transmission times contained in the fourth time set.

By adopting the setting mode, the repeated transmission times, the MCS level and the TB quantity which are allowed to be used by the terminal can be well balanced, and meanwhile, the repeated transmission times, one or two of the MCS level and the TB quantity are informed to the terminal at one time by utilizing the indication of the mapping relation through the combined indication information.

In some embodiments, the mapping relationship may be: the mapping relation written in the communication protocol in advance, so that the mapping relation is written when the terminal leaves the factory or the base station is built.

In some embodiments, the mapping relationship may be a pre-negotiated mapping relationship, for example, a mapping relationship issued by the base station in a broadcast message or a multicast message. In short, the base station and the terminal know any mapping relation in advance, and when the base station issues the joint indication information, the base station queries the mapping relation according to the requirement of the repeated transmission times and issues the joint indication information.

As shown in fig. 5, the present embodiment provides an information determining method, which includes:

step S210: receiving joint indication information;

step S220: and determining the repeated transmission times of the TB according to the mapping relation indicated by the joint indication information, and determining the MCS.

The information determining method in this embodiment is applied to a terminal, for example, the MTC terminal. The terminal receives the joint indication information instead of the individual indication information individually indicating one information content.

After receiving the joint indication information, the MCS is known while knowing the number of repeated transmissions according to the mapping relationship corresponding to the joint indication information.

Thus, the terminal knows the repeated transmission times and the MCS through the reception of the joint indication information, and reduces the received signaling overhead.

In some embodiments, the method further comprises:

and determining the TB quantity according to the mapping relation indicated by the joint indication information.

In this embodiment, the mapping relationship may be a mapping relationship between the number of repeated transmissions and the MCS, or may be a mapping relationship between the number of repeated transmissions, the MCS, and the number of TBs. If the mapping relationship is the mapping relationship among the three, the terminal also determines the TB quantity according to the joint indication information.

In this embodiment, the mapping relationship between the number of repeated transmissions and the MCS, or the mapping relationship between the number of repeated transmissions, the MCS and the number of TBs can be referred to in the foregoing embodiment, and will not be repeated here.

As shown in fig. 6, the present embodiment provides an information indicating apparatus including:

the transmitting module is configured to transmit the joint indication information according to the mapping relation between the repeated transmission times of the transmission block TB and the modulation and coding strategy MCS, wherein the joint indication information is used for indicating the repeated transmission times of the scheduled TB and simultaneously indicating the MCS by indicating the mapping relation.

The issuing module provided in this embodiment may be a program module, and after the program module is executed by the processor, the issuing of the joint indication information can be implemented.

In some embodiments, the apparatus may further comprise: a storage module; the storage module may be configured to store the mapping relationship and/or the joint indication information.

In other embodiments, the issuing module may be a soft-hard combined module; the soft and hard combination module can be various programmable arrays; programmable arrays include, but are not limited to, complex programmable arrays or field programmable arrays.

In still other embodiments, the issuing module may be a pure hardware module; pure hardware modules include, but are not limited to, application specific integrated circuits.

and/or the number of the groups of groups,

In some embodiments, the mapping relationship between the number of repeated transmissions of the TB, the MCS and the number of TBs includes:

and/or the number of the groups of groups,

In some embodiments the second TB number is greater than the first TB number;

the second MCS set contains more MCS levels than the first MCS set;

As shown in fig. 7, the present embodiment provides an information determining apparatus including:

a receiving module 210 configured to receive the joint indication information;

the determining module 220 is configured to determine the number of repeated transmission of the TB and determine the MCS according to the mapping relationship indicated by the joint indication information.

The receiving module 210 and the determining module 220 provided in this embodiment may be program modules, and after the program modules are executed by the processor, the program modules can implement the receiving of the joint indication information, the determination of the number of repeated transmissions and the determination of the MCS.

In other embodiments, the receiving module 210 and the determining module 220 may be soft-hard combination modules; the soft and hard combination module can be various programmable arrays; programmable arrays include, but are not limited to, complex programmable arrays or field programmable arrays.

In still other embodiments, the receiving module 210 and the determining module 220 may be pure hardware modules; pure hardware modules include, but are not limited to, application specific integrated circuits.

In some embodiments, the determining module 220 is further configured to determine the number of TBs according to the mapping relationship indicated by the joint indication information.

Several examples are provided below in connection with any of the embodiments described above:

example 1:

and compressing the information domains by utilizing the characteristics of multi-TB scheduling and the relation among the information domains, and simultaneously carrying out joint coding to achieve the purpose of reducing signaling overhead.

And compressing the information domains by utilizing the relation among different information domains, and simultaneously carrying out joint coding. Both MCS selection and setting of the number of retransmissions are set based on the channel conditions.

Under the same channel condition, a higher MCS level may be set, and the number of repeated transmissions increases at this time.

Another case is to set a lower level MCS, and the number of repeated transmissions is relatively small.

By utilizing the benefit, the MCS and the repeated transmission times can be subjected to joint coding, and the joint coding information can be obtained.

In the case of multi-TB scheduling, the data amount of a packet is generally large. In order to reduce the number of transmissions, in case the number of scheduled TBs is relatively large, the amount of data of the transmission data block is limited, e.g. only large data blocks are allowed to be transmitted. Then a larger MCS needs to be selected and with this benefit the modulated TB number and MCS can be jointly encoded. Meanwhile, the combined coding can be carried out on the MCS, the repeated transmission times and the scheduled TB number.

Example 2:

suppose that the base station configures the user with an optional number of retransmissions of { R1, R2, R3, R4}. When selecting the MCS with a specific level, the number of optional repeated transmissions is limited, for example, when the MCS level is smaller than the threshold X1, the number of optional repeated transmissions is { R1, R2}, and when the MCS level is larger than the threshold, the number of optional repeated transmissions is { R3, R4}.

And carrying out joint coding on the MCS and the corresponding optional repeated transmission times, and generating the mapping relation among the joint indication information, the MCS and the repeated transmission times shown in the table 1.

Example 3:

and the compression and joint coding between the dispatching TB number and the MCS are carried out to obtain the joint indication information. More MCS levels may be used when the number of scheduled TBs is less than the threshold Y1, and the number of MCS levels used is limited when the number of scheduled TBs is greater than the threshold.

There may be one or more TB number thresholds determined above. The threshold may be fixed in protocol or may be configured by higher layer signaling.

For example, when the number of scheduled TBs is 1, all MCS levels may be used at this time, when the number of scheduled TBs is 2, only four of them may be used at this time, and when the number of scheduled TBs is greater than 2, two of them are used at this time.

Table 4 provides a mapping relationship among the joint indication information, the number of TBs and the MCS level.

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TABLE 4 Table 4

Example 4:

compression and joint coding between scheduled TB, MCS and number of repeated transmissions

The method is a combination of the method I and the method II, namely, the MCS level is limited under different TB numbers, the repeated transmission times are limited under specific MCS, and the TB numbers, the MCS level and the repeated transmission times are coded in a combined way. In summary, in the embodiment of the present application, the number of optional repeated transmissions is limited under different MCSs, and joint coding is performed to obtain joint indication information. And limiting the MCS selection under different dispatch TB numbers, and carrying out joint coding. The mapping provided in this example may be as shown in table 3 above.

The present embodiment also provides a communication device, including:

an antenna;

a memory;

and a processor, respectively connected to the antenna and the memory, for controlling the antenna to transmit and receive wireless signals by executing an executable program stored in the memory, and capable of executing the steps of the information indicating method and/or the information determining method provided in any of the foregoing embodiments.

The communication device provided in this embodiment may be the aforementioned terminal or base station. The terminal may be various personal or vehicle-mounted terminals. The base station may be various types of base stations, such as a 4G base station or a 5G base station, etc.

The antenna may be various types of antennas, such as a 3G antenna, a 4G antenna, or a 5G antenna; the antenna may further include: wiFi antennas or wireless charging antennas, etc.

The memory may include various types of storage media, which are non-transitory computer storage media capable of continuing to memorize information stored thereon after a power down of the communication device.

The processor may be connected to the antenna and the memory via a bus or the like for reading the executable program stored on the memory, by means of an information indicating method and/or an information determining method or the like as shown for example in fig. 2, 4 and/or 5.

The present application further provides a non-transitory computer readable storage medium storing an executable program, where the executable program when executed by a processor implements the steps of the information indication method and/or the information determination method provided in any of the foregoing embodiments, for example, at least one of the methods shown in fig. 2, 4, and/or 5.

Fig. 8 is a diagram illustrating a terminal, which may be embodied as a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, etc., in accordance with an exemplary embodiment.

Referring to fig. 8, a terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.

The processing component 802 generally controls overall operation of the terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the terminal 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply component 806 provides power to the various components of the terminal 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal 800.

The multimedia component 808 includes a screen between the terminal 800 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the terminal 800 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the terminal 800. For example, the sensor assembly 814 may detect an on/off state of the terminal 800, a relative positioning of the assemblies, such as a display and keypad of the terminal 800, the sensor assembly 814 may also detect a change in position of the terminal 800 or one of the assemblies of the terminal 800, the presence or absence of user contact with the terminal 800, an orientation or acceleration/deceleration of the terminal 800, and a change in temperature of the terminal 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication between the terminal 800 and other devices, either wired or wireless. The terminal 800 may access a wireless network based on a communication standard, such as Wi-Fi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the terminal 800 can be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 804 including instructions executable by processor 820 of terminal 800 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Fig. 9 is a schematic diagram of a base station. Referring to fig. 9, base station 900 includes a processing component 922 that further includes one or more processors and memory resources represented by memory 932 for storing instructions, such as applications, executable by processing component 922. The application programs stored in memory 932 may include one or more modules that each correspond to a set of instructions. Further, processing component 922 is configured to execute instructions.

Base station 900 may also include a power component 926 configured to perform power management for base station 900, a wired or wireless network interface 950 configured to connect base station 900 to a network, and an input output (I/O) interface 958. The base station 900 may operate based on an operating system stored in memory 932, such as Windows Server, mac OS XTM, unixTM, linuxTM, freeBSDTM, or the like.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. An information indication method is applied to a base station, and comprises the following steps:

issuing joint indication information according to the mapping relation between the number of the Transmission Blocks (TB) and the Modulation Coding Strategy (MCS), wherein the joint indication information is used for indicating the number of the scheduled TB and simultaneously indicating the MCS by indicating the mapping relation;

the sending the joint indication information according to the mapping relation between the number of the transmission blocks TB and the modulation coding strategy MCS comprises the following steps:

and according to the mapping relation between the repeated transmission times of the TB, the MCS and the quantity of the TB, issuing the joint indication information, wherein the joint indication information is also used for indicating the repeated transmission times of the TB by indicating the mapping relation.

2. The method of claim 1, wherein,

the number of the TB is smaller than the number of the MCS levels corresponding to the threshold, and is more than the number of the MCS levels corresponding to the TB when the number of the TB is larger than the threshold.

3. The method of claim 1, wherein a mapping relationship between a number of repeated transmissions of a TB and the MCS and number of TBs comprises:

and/or the number of the groups of groups,

wherein the fourth set of numbers includes at least one repeat transmission number; the second MCS set includes at least one MCS level.

4. The method of claim 3, wherein,

the second TB number is greater than the first TB number;

the second MCS set contains more MCS levels than the first MCS set;

the number of the repeated transmission times contained in the third time set is more than the number of the repeated transmission times contained in the fourth time set; and/or, the average value of the repeated transmission times contained in the third time set is smaller than the average value of the repeated transmission times contained in the fourth time set.

5. An information determining method is applied to a terminal, and comprises the following steps:

Receiving joint indication information; the joint indication information is used for indicating the mapping relation among the repeated transmission times of the transmission block TB, the modulation and coding strategy MCS and the quantity of the TB;

and determining the number of the Transmission Blocks (TB), the repetition number of the TB and the Modulation and Coding Strategy (MCS) according to the mapping relation indicated by the joint indication information.

6. The method of claim 5 wherein the number of TBs is less than a threshold corresponding number of levels of MCS than if the number of TBs is greater than the threshold.

7. An information indicating apparatus, comprising:

the transmitting module is configured to transmit joint indication information according to the mapping relation between the number of the Transmission Blocks (TB) and the Modulation and Coding Strategy (MCS), wherein the joint indication information is used for indicating the number of the scheduled TB and simultaneously indicating the MCS by indicating the mapping relation; the issuing module is further configured to issue the joint indication information according to a mapping relationship between the number of repeated transmissions of the TB, the MCS and the number of TBs, where the joint indication information is further configured to indicate the number of repeated transmissions of the TB by indicating the mapping relationship;

And the storage module is configured to store the joint indication information to be sent.

8. The apparatus of claim 7, wherein a mapping relationship between a number of repeated transmissions of a TB and the MCS and number of TBs comprises:

and/or the number of the groups of groups,

9. The apparatus of claim 8, wherein,

the second TB number is greater than the first TB number;

the second MCS set contains more MCS levels than the first MCS set;

10. An information determining apparatus, comprising:

a receiving module configured to receive the joint indication information; the joint indication information is used for indicating the mapping relation among the repeated transmission times of the transmission block TB, the modulation and coding strategy MCS and the quantity of the TB;

and the determining module is configured to determine the number of the transmission blocks TB, the repetition number of the TB and the modulation coding strategy MCS according to the mapping relation indicated by the joint indication information.

11. A communication device, comprising:

an antenna;

a memory;

a processor, connected to the antenna and the memory, respectively, configured to control the transceiving of the antenna by executing a computer program stored on the memory, and to enable the implementation of the method provided in any one of claims 1 to 4 or 5 to 6.

12. A computer storage medium storing a computer program which, when executed by a processor, is capable of carrying out the method provided in any one of claims 1 to 4 or 5 to 6.