CN114650560A

CN114650560A - Message transmission method, device and equipment

Info

Publication number: CN114650560A
Application number: CN202011511675.4A
Authority: CN
Inventors: 李娜; 吴凯
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2022-06-21
Also published as: WO2022127898A1

Abstract

The application discloses a message transmission method, a device and equipment, relates to the technical field of communication, and can solve the problems that coverage is limited and/or transmission reliability and efficiency are low due to the fact that the code rate of a transmission block cannot be further reduced due to the fact that the existing method for reducing the code rate of the transmission block is suitable for a single scene. The method comprises the following steps: determining first information according to target information, wherein the target information comprises at least one of the following items: the method comprises the steps of obtaining capability information of User Equipment (UE), channel parameters of the UE and the UE type of the UE; the first information is used for indicating a target zooming parameter; the target scaling parameter is used for adjusting the code rate of the transmission block of the target message; and sending the target message to the UE according to the target scaling parameter.

Description

Message transmission method, device and equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a message transmission method, device and equipment.

Background

For a terminal with Reduced Capability (called a "Reduced Capability" for short), the complexity of the terminal needs to be Reduced in terms of the number of receiving antennas and transmitting antennas, the supported bandwidth, the time and Capability of the terminal to process data and signals, and the like, so that the downlink coverage of the terminal is Reduced. In order to ensure the performance of downlink coverage or information transmission, reducing the code rate of the transmission block is an effective method.

However, the current method for reducing the code rate of the transport block cannot adapt to the requirements of diversification of services and terminal types, and further the code rate of the transport block cannot be further reduced, so that coverage is limited and/or transmission reliability and efficiency are low.

Disclosure of Invention

The embodiment of the application aims to provide a message transmission method, a message transmission device and message transmission equipment, and can solve the problems that coverage is limited and/or transmission reliability and efficiency are low due to the fact that the code rate of a transmission block cannot be further reduced due to the fact that the existing method for reducing the code rate of the transmission block is suitable for a single scene.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, a message transmission method is provided, where the message transmission method is executed by a network side device, and the method includes: determining first information according to target information, wherein the target information comprises at least one of the following items: capability information of the UE, channel parameters of the UE, and a UE type of the UE; the first information is used for indicating a target zooming parameter; sending a target message to the UE according to the target scaling parameter; the target scaling parameter is used for adjusting the code rate of the transmission block of the target message.

In a second aspect, a message transmission method is provided, which is performed by a UE, and includes: reporting target information to network side equipment; receiving a target message from a network side device; wherein the target information includes at least one of: capability information of the UE, channel parameters of the UE, and a UE type of the UE; the target information is related to a target scaling parameter; the target scaling parameter is used for adjusting the code rate of a transmission block of a target message sent to the UE by the network side device.

In a third aspect, a message transmission apparatus is provided, the apparatus including: the determining module is configured to determine first information according to target information, where the target information includes at least one of: capability information of the UE, channel parameters of the UE, and a UE type of the UE; the first information is used for indicating a target zooming parameter; a sending module, configured to send a target message to the UE according to the target scaling parameter; the target scaling parameter is used for adjusting the code rate of the transmission block of the target message.

In a fourth aspect, there is provided a message transmission apparatus, comprising: the reporting module is used for reporting the target information to the network side equipment; the receiving module is used for receiving the target message from the network side equipment; wherein the target information includes at least one of: capability information of the UE, channel parameters of the UE, and a UE type of the UE; the target information is related to a target zooming parameter; the target scaling parameter is used for adjusting the code rate of a transmission block of a target message sent to the UE by the network side equipment.

In a fifth aspect, a network-side device is provided, where the terminal includes a processor, a memory, and a program or an instruction stored in the memory and executable on the processor, and the program or the instruction, when executed by the processor, implements the steps of the method according to the first aspect.

In a sixth aspect, a UE is provided, the network side device includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the second aspect.

In a seventh aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first aspect or implement the steps of the method according to the second aspect.

In an eighth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a network-side device program or instruction, implement the method according to the first aspect, or implement the method according to the second aspect.

In a ninth aspect, the present application provides a computer program product, which is stored in a non-volatile storage medium and is executed by at least one processor to implement the method according to the first aspect or the method according to the second aspect.

In this embodiment of the present application, the network side device may determine, according to target information (e.g., capability information of the UE, channel parameters of the UE, and a UE type of the UE) fed back by the UE, first information adapted to the UE, and then adjust, based on a target scaling parameter indicated by the first information, a code rate of a transport block of the target message that the network side device needs to send to the UE, so as to ensure downlink coverage or performance of information transmission in different UE scenarios.

Drawings

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

fig. 2 is a flowchart of a method of a message transmission method according to an embodiment of the present application;

fig. 3 is a second flowchart of a message transmission method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a message transmission apparatus according to an embodiment of the present application;

fig. 5 is a second schematic structural diagram of a message transmission apparatus according to an embodiment of the present application;

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

fig. 7 is a schematic hardware structure diagram of a network-side device according to an embodiment of the present disclosure;

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

Detailed Description

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

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation)^thGeneration, 6G) communication system.

Fig. 1 shows a schematic diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

Technical terms involved in the technical solutions provided in the present application will be explained below to facilitate the understanding of the reader:

1. random access

NR supports two types of random access procedures: 4-step RA type for MSG1 (4-step RACH) and 2-step RA type for MSGA (2-step RACH). Both types of random access procedures support Contention-based random access (CBRA) and Contention-free random access (CFRA).

For example, the UE may select the type of random access according to configuration information of the network configuration at the start of the random access procedure. For example, when CFRA resources are not configured, the UE selects between a 2-step RA type and a 4-step RA type using an RSRP threshold; when CFRA resources for the 4-step RA type are configured, the UE may perform random access in the 4-step RA type; when CFRA resources for the 2-step RA type are configured, the UE performs random access using the 2-step RA type.

2. 4-step random access (4-step RACH)

The 4-step RACH generally comprises the following five steps:

step 1: UE sends msg.1 (random access preamble).

Step 2: after receiving Msg1, the network side sends a Random Access Response (RAR), also called msg.2, to the UE. The RAR is scrambled by a Random Access Radio Network temporary Identity (RA-RNTI), and contains a Backoff Indicator (BI), an Uplink grant (UL grant), a Random Access Preamble Identity (RAPID), a temporary Cell Radio Network temporary Identity (TC-RNTI) and the like.

And 3, step 3: and the UE sends Msg.3.

And 4, step 4: the network side sends a conflict resolution message (also called msg.4), where the msg.4 includes a contention resolution flag.

And 5: typically, the UE needs to send msg.5. I.e. an access complete message.

It should be noted that the four-step access generally refers to a process of completing the first four steps of contention resolution, and the first four steps generally represent a conventional random access procedure of the wireless network.

3. 2-step random access (2-step RACH)

The 2-step RACH specifically comprises the following two steps:

step 1: the UE triggers a 2-step RACH procedure, sending a request message (msg.a) to the network device. For example, it is transmitted through PUSCH + preamble.

Step 2: the network side sends acknowledgement information (msg.b) to the UE.

If the UE fails to receive msg.b (failure means that the RAPID or contention resolution ID corresponding to the UE's own msg.a is not received), the UE retransmits msg.1 (msg.a, Msg3 or msg.1 may also be retransmitted, depending on the specific scheme).

4. Scaling of transport Block size (TB scaling)

TB scaling refers to the compression of the transport block size of msg.2 in a 4-step random access process and msg.b in a 2-step random access process to reduce the code rate.

The Rel-16 protocol TS 38.214 specifies that for PDSCH scheduled by PDCCH DCFormat 1_0 scrambled by P-RNTI or RA-RNTI or MsgB-RNTI, the determination of the Transport Block Size (TBS) follows steps 1-4, but needs to be modified in step 2 of the above steps 1-4, the calculation of Ninfo needs to be multiplied by a scaling factor S, which modifies the calculation formula of Ninfo as: n is a radical of_info＝S*N_RE*R*Q_m*v

The scaling factor S is indicated based on a TB scaling field in the DCI, and a corresponding relationship between the scaling factor S and the TB scaling field may be shown in table 1 below.

TABLE 1

TB scaling field (TB scaling field)	Scaling factor S
		00	1
01	0.5
		10	0.25
11	0

Exemplarily, a reccap UE may not access a cell due to a decrease in downlink coverage during random access. In order to ensure the performance of downlink coverage or information transmission in the random access process, reducing the code rate of the transmission block is an effective method. However, the current method for reducing the code rate of the transport block cannot adapt to the requirements of diversification of services and terminal types, and thus the efficiency of reducing the code rate of the transport block is low.

The message transmission method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Fig. 2 is a flowchart illustrating a message transmission method according to an embodiment of the present invention, and as shown in fig. 2, the message transmission method may include the following steps:

step 201: and the network side equipment determines the first information according to the target information.

The target information is reported to the network side device by the UE.

Wherein the target information includes at least one of: capability information of the UE, channel parameters of the UE, and a UE type of the UE. The first information is used to indicate a target scaling parameter, which may include a TB scaling value.

Step 202: and the network side equipment sends the target message to the UE according to the target scaling parameter.

In the embodiment of the application, after the network side device obtains the target scaling parameter, the network side device compresses the transmission block of the target message by using the target scaling parameter, so that the code rate of the transmission block of the target message is reduced.

Step 203: and the UE receives the target message from the network side equipment.

Fig. 3 shows a schematic flowchart of a message transmission method according to an embodiment of the present invention, and as shown in fig. 3, the message transmission method may include the following steps:

step 301: and the UE reports the target information to the network side equipment.

Wherein the target information includes at least one of: the UE capability information, the UE channel parameters and the UE type of the UE; the target information is associated with a target scaling parameter.

Step 302: the UE acquires first information.

The first information is used for indicating a target zooming parameter.

Step 303: and the UE receives and demodulates the information transmitted by the transmission block of the target message sent to the UE by the network side equipment according to the target scaling parameter.

In this embodiment, the target scaling parameter is used to adjust a code rate of a transport block of the target message. It can be understood that the target scaling parameter is used to adjust a code rate of a transport block of a target message sent by the network side device to the UE.

It should be noted that the method provided in the embodiments of the present application may be applicable to a scenario in which one TB is processed over multiple timeslots, and a TBs of the TB is determined based on multiple timeslots and is transmitted over multiple integer timeslots.

In an embodiment of the present application, the target information is related to a target scaling parameter, that is, the target information is used to indicate a selection range of the target scaling parameter.

Optionally, in this embodiment of the present application, UEs of different types that reduce the terminal capability correspond to different target scaling parameters.

Optionally, in an embodiment of the present application, the target message includes at least one of: msg2 in two-step random access, Msg4 in four-step random access, user-specific message. Specifically, during the random access process, msg.4 scrambled by TC-RNTI does not support code rate reduction (TB scaling) of a transport block. The application solves the problem by deriving parameters for further reducing the Msg.4 code rate through semi-static configuration or dynamic indication or through other parameter derivation.

Optionally, in this embodiment of the present application, when the target message is a retransmission message, the target scaling parameter is the same as the scaling parameter of the initially transmitted target message.

Optionally, in an embodiment of the present application, the first information includes a Modulation and Coding Scheme (MCS) table, and the MCS table includes the target scaling parameter.

Optionally, in this embodiment of the present application, the target scaling parameter or the target MCS table may be defined in a standard or configured by higher layer signaling. The higher layer signaling may be UE-specific RRC signaling, cell level signaling, or system information. Furthermore, it should be noted that terminals of different rdcap types may be configured or have different values defined in the standard for the target scaling parameter or the target MCS table.

Illustratively, table 2 below is an MCS table that may contain TB scaling factors (i.e., scaling factors).

TABLE 2

In the message transmission method provided in the embodiment of the present application, the network side device may determine the first information adapted to the UE according to target information (e.g., capability information of the UE, channel parameters of the UE, and a UE type of the UE) fed back by the UE, and then adjust, based on a target scaling parameter indicated by the first information, a code rate of a transmission block of the target message that the network side device needs to send to the UE, so as to ensure downlink coverage or performance of information transmission in different UE scenarios.

Optionally, in this embodiment of the present application, the first information is agreed by a protocol or indicated by system information. Further, the network side device may determine, based on the target information, corresponding first information from information specified by a protocol agreement or system information.

Illustratively, at least one of the following information is broadcast by protocol agreement or system information:

1) indicating whether TB scaling is applied.

2) If TB scaling is applied, its TB scaling value is the same for the terminals of a RedCap (regardless of the type of how many RedCap terminals are); for example, for a terminal of a red cap (regardless of the type of how many red cap terminals are), its TB scaling value is Y, for example, Y is 0.5.

3) If TB scaling is applied, its TB scaling value is different for different terminals of the red map. Example 1: for terminal type 1 of red map, i.e. high-end red map devices at the high end, the value of TB scaling is Y1, for example, Y1 is 0.5; for terminal type 2 of red map, i.e. low-end red map devices at the low end, the value of TB scaling is Y2, e.g. Y2 ═ 0.25. Example 2: for a terminal of a red beacon, if its receive antenna is 2, its TB scaling value is Y1, for example, Y1 is 0.5; if its receiving antenna is 1, its TB scaling value is Y2, for example, Y2 is 0.25.

For example, when the TB scaling value is related to the type of UE, the network layer needs to know the type of UE before scheduling data.

In one example, if TB scaling applies at least to msg.2, msg.b or msg.3 for contention-based random access, the network distinguishes different UE types by msg.1 (e.g. different PRACH resources/preambles and/or different initial access BWPs).

In another example, if TB scaling is applied at least to msg.4 for contention-based random access, the network may distinguish between different UE types by at least one of msg.1 (e.g. different PRACH resources/preamble and/or different initial access BWP), msg.3, and msg.a (the type of RedCap reported by the terminal in msg.3/msg.a).

In another example, if TB scaling is at least applied to data transmission after RRC link establishment, the UE may report the UE type in a UE capability report after initial connection establishment.

Optionally, in this embodiment of the present application, the message transmission method provided in this embodiment of the present application may further include the following step a1 and step a 2:

step A1: and the network side equipment sends the first information to the UE.

Step A2: the UE receives first information from the network side equipment.

For example, the first information may be system information, where the system information carries a target scaling parameter, or the target MSC table.

Optionally, in this embodiment of the present application, the first information may be carried in DCI. That is, the message transmission method provided in the embodiment of the present application may further include the following step B1 and step B2:

step B1: and the network side equipment sends the DCI to the UE.

Step B2: the UE receives DCI from the network side equipment.

Wherein, the target field of the DCI carries the first information.

It should be noted that, when the target field in the DCI is used to indicate TB scaling, the reserved field in the DCI may be used to indicate TB scaling (for example, x-bit may indicate 2x different values), a new field may also be introduced into the DCI, and is specially used to indicate TB scaling, and an existing field may also be reused, so that the existing field may indicate TB scaling in addition to indicating the existing function "F".

Further optionally, in an embodiment of the present application, the target field is any one of the following fields:

the reserved field in the above-mentioned DCI,

the above-mentioned DCI is a dedicated field dedicated to carrying the first information,

a first field in the DCI for indicating a target function.

For example, for the above dedicated field, the embodiment of the present application introduces a new field in the DCI to specifically indicate the target scaling parameter, so that the overall bit number of the DCI can be increased without compressing the existing field.

For example, for the first field, the embodiments of the present application ensure that the DCI size is unchanged by reusing the existing field and compressing the existing field to indicate the target scaling parameter. For example, the HARQ process number field may be compressed from 4bits to 2 bits.

For example, when higher layer signaling configures the target function in the first field (i.e. the existing function indicated by the first field), the first information may also be configured.

For example, the reserved field may be a Downlink Assignment Index (DAI) field (2 bits) with a TC-RNTI in DCI 1-0, and the DAI field may be used to indicate whether TB scaling is used or not and the value of TB scaling. For example, the function of each field in the DCI used for scheduling msg.4 in Rel-16 is shown in table 3 below:

TABLE 3

Further optionally, in this embodiment of the application, when the target field is the first field, a first valid bit in the target field carries first information, and a second valid bit in the target field is used to indicate the target function.

For example, the second valid bit may be the remaining valid bits of the target field except for the first valid bit.

Illustratively, the first significant bit may be x Most Significant Bits (MSB) or x Least Significant Bits (LSB) in the destination field, and the value of TB scaling is indicated by the significant bits, and the remaining (L-x) bits, i.e. the second significant bits, may be used to indicate the existing function F of the destination field, where x is a positive integer.

For example, referring to Table 4 below, a 5-bit MCS table, the most significant bit MSB of which is used to indicate TB scaling, and the remaining 4-bits are used to indicate the MCS index.

TABLE 4

For example, in table 4 above, b4 is 0, TB scaling is 0.25 or 0.5, b4 is 1, and TB scaling is 0.5 or 1.

Further optionally, in this embodiment of the present application, the step B1 may include the following steps:

step B11: and the network side equipment transmits the DCI to the UE according to the PDCCH.

Further optionally, in this embodiment of the present application, the step B2 may include the following steps:

step B21: the UE detects the PDCCH and receives DCI from the network side equipment.

Wherein DCI in PDSCH scheduled by PDCCH scrambled by different RNTI indicates different scaling parameters.

For example, SCA1-C-RNTI scrambled PDCCH scheduled PDSCH, TB scaling ═ 0.25; PDSCH, TB scaling of PDCCH scheduling scrambled by SCA2-C-RNTI is 0.5; and the TC-RNTI and/or the C-RNTI and/or the MCS-C-RNTI are scrambled, and the PDCCH scheduling is carried out on the PDSCH, and the TB scaling is 1.

Optionally, in this embodiment of the application, the first information is related to other parameters, that is, the first information may be derived based on other parameters.

For example, the process of acquiring the first information and determining the first information may include the following steps C:

step C: and the network side equipment/UE determines the first information according to the second information.

Wherein the second information includes at least one of: a scaling factor of the target message, and a repetition factor of the target message.

Further optionally, in this embodiment of the application, the second information is a time-frequency resource allocation TDRA table, where the TDRA table includes at least one of the following items: a scaling factor of said first message, a repetition factor of said first message. The first message may be any one of two-step random access procedures, or may be any one of four-step random access procedures.

Example a: the value of TB scaling of msg.4 in the four-step random access procedure may be derived from the scaling factor and/or repetition factor of msg.2 in the four-step random access procedure/msg.b in the two-step random access procedure. For example, TB scaling for msg.4 ═ function (TB scaling and/or repetition factor for msg.2/msg.B). The simplest TB scaling for msg.4 ═ TB scaling for msg.2/msg.b.

Example B: the TB scaling value of msg.4 in the four-step random access process can be obtained from msg.1 or msg.3 in the four-step random access process or the repetition factor of msg.a in the two-step random access process (e.g. repeat transmission 2,4,8,16 times, etc.). For example, TB scaling for msg.4 ═ function (repetition factor for msg.1/msg.3/msg.a), the simplest TB scaling for msg.4 ═ 1/(repetition factor for msg.1/msg.3/msg.a).

It should be noted that, in the message transmission method provided in the embodiment of the present application, the execution main body may be a message transmission apparatus, or a control module in the message transmission apparatus for executing the message transmission method. In the embodiment of the present application, a message transmission device executes a message transmission method as an example, and the message transmission device provided in the embodiment of the present application is described.

An embodiment of the present application provides a message transmission apparatus, as shown in fig. 4, the message transmission apparatus may include: a determining module 401 and a sending module 402, wherein:

a determining module 401, configured to determine first information according to target information, where the target information includes at least one of the following: capability information of a UE, channel parameters of the UE, and a UE type of the UE; the first information is used for indicating a target zooming parameter; a sending module 402, configured to send a target message to the UE according to the target scaling parameter obtained by the obtaining module 401; the target scaling parameter is used for adjusting the code rate of the transmission block of the target message.

Optionally, the target message includes at least one of: msg2 in two-step random access, Msg4 in four-step random access, user-specific message.

Optionally, the sending module 402 is further configured to send the first information to the UE.

Optionally, the sending module 402 is further configured to send DCI; wherein, the target field of the DCI carries the first information.

Optionally, the target field is: a reserved field in the DCI, or a dedicated field dedicated to carry the first information in the DCI, or a first field used to indicate a target function in the DCI.

Optionally, when the target field is the first field, a first valid bit in the target field carries the first information, and a second valid bit in the target field is used to indicate the target function.

Optionally, the sending module 402 is further configured to send DCI according to a PDCCH; wherein DCI in PDSCH scheduled by PDCCH scrambled by different RNTI indicates different scaling parameters.

Optionally, the obtaining module 401 is specifically configured to: determining first information according to the second information; wherein the second information comprises at least one of: a scaling factor of said first message, a repetition factor of said first message.

Optionally, the second information is a TDRA table, where the TDRA table includes at least one of the following items: a scaling factor of the first message, a repetition factor of the first message.

Optionally, when the target message is a retransmission message, the target scaling parameter is the same as the scaling parameter of the initially transmitted target message.

Optionally, the first information is agreed by a protocol or indicated by system information.

Optionally, the first information includes a target MCS table, and the target MCS table includes the target scaling parameter.

Optionally, the UEs with different types of reduced terminal capabilities correspond to different target scaling parameters.

In the message transmission apparatus provided in the embodiment of the present application, the apparatus may determine first information adapted to the UE according to target information (e.g., capability information of the UE, channel parameters of the UE, and a UE type of the UE) fed back by the UE, and then adjust a code rate of a transport block of the target message sent to the UE based on a target scaling parameter indicated by the first information, so as to ensure downlink coverage or performance of information transmission in different UE scenarios.

An embodiment of the present application provides a message transmission apparatus, as shown in fig. 5, the message transmission apparatus may include: a reporting module 501, an obtaining module 502 and a processing module 503, wherein: a reporting module 501, configured to report target information to a network device; the target information includes at least one of: capability information of the UE, channel parameters of the UE, and a UE type of the UE; the target information is related to a target scaling parameter; an obtaining module 502, configured to obtain first information; the first information is used for indicating the target zooming parameter; the processing module 503 is configured to receive and demodulate information transmitted by a transport block of a target message sent to the UE by the network side device according to the target scaling parameter.

Optionally, as shown in fig. 5, the message transmission apparatus further includes a receiving module 504, where: the receiving module 504 is configured to receive DCI; wherein, the target field of the DCI carries the first information.

Optionally, the receiving module 504 is configured to detect a physical downlink control channel PDCCH and receive DCI; and the DCI in the Physical Downlink Shared Channel (PDSCH) scheduled by the PDCCH scrambled by the different Radio Network Temporary Identifiers (RNTIs) indicates different scaling parameters.

Optionally, the obtaining module 502 is specifically configured to determine the first information according to the target information and the second information; wherein the second information comprises at least one of: a scaling factor of the target message, and a repetition factor of the target message.

Optionally, in a case that the target message is a retransmission message, the target scaling parameter is the same as the scaling parameter of the initially transmitted target message.

In the message transmission apparatus provided in the embodiment of the present application, the apparatus feeds back target information (e.g., capability information of a UE, channel parameters of the UE, and a UE type of the UE) to a network side device, so that the network side device can determine first information adapted to the UE based on the target information, and then adjust a code rate of a transmission block of the target message sent to the UE based on a target scaling parameter indicated by the first information, thereby ensuring downlink coverage or performance of information transmission in different UE scenarios.

It should be noted that, as shown in fig. 5, modules that are necessarily included in the message transmission apparatus are illustrated by solid line boxes, such as a reporting module 501, an obtaining module 502, and a processing module 503; modules that may or may not be included in the message transmitting device are illustrated with dashed boxes, such as receiving module 504.

The message transmission device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The message transmission device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system (Android), an iOS operating system, or other possible operating systems, which is not specifically limited in the embodiments of the present application.

The message transmission device provided in the embodiment of the present application can implement each process implemented by the above method embodiment, and achieve the same technical effect, and for avoiding repetition, the details are not repeated here.

Optionally, as shown in fig. 6, an embodiment of the present application further provides a communication device 600, which includes a processor 601, a memory 602, and a program or an instruction stored on the memory 602 and executable on the processor 601, for example, when the communication device 600 is a network-side device, the program or the instruction is executed by the processor 601 to implement the processes of the foregoing message transmission method embodiment, and the same technical effect can be achieved. When the communication device 600 is a UE, the program or the instruction is executed by the processor 601 to implement the processes of the above-mentioned message transmission method embodiment, and can achieve the same technical effect, and is not described herein again to avoid repetition.

The embodiment of the application also provides network side equipment. As shown in fig. 7, the network-side device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73. The antenna 71 is connected to a radio frequency device 72. In the uplink direction, the rf device 72 receives information via the antenna 71 and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes information to be transmitted and transmits the information to the radio frequency device 72, and the radio frequency device 72 processes the received information and transmits the processed information through the antenna 71.

The above-mentioned band processing means may be located in the baseband device 73, and the method performed by the network side device in the above embodiment may be implemented in the baseband device 73, where the baseband device 73 includes the processor 74 and the memory 77.

The baseband device 73 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 7, where one of the chips, for example, the processor 74, is connected to the memory 75 to call up a program in the memory 75 to execute the network-side device operation shown in the above method embodiment.

The baseband device 73 may further include a network interface 76, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 72.

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 75 and executable on the processor 74, the processor 74 calls the instructions or programs in the memory 75 to execute all the methods executed by the determining module 401 shown in fig. 4, and achieve the same technical effect, and are not described herein in detail to avoid repetition. Meanwhile, the radio frequency device 72 may execute all the methods executed by the sending module 402 shown in fig. 4 (for example, the radio frequency device 72 may send the target message to the UE, and the radio frequency device 72 may also send the DCI to the UE), and achieve the same technical effect, and in order to avoid repetition, it is not described herein again.

Fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110.

Those skilled in the art will appreciate that the terminal 100 may further comprise a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.

It should be understood that, in the embodiment of the present application, the input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics Processing Unit 1041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 101 receives downlink data from a network side device, and then processes the downlink data to the processor 110; in addition, the uplink data is sent to the network side equipment. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 109 may be used to store software programs or instructions as well as various data. The memory 109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 109 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor, which primarily handles operating systems, user interfaces, and applications or instructions, etc., and a modem processor, which primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The radio frequency unit 101 is configured to report target information to a network side device; the radio frequency unit 101 is further configured to receive a target message from a network side device; wherein the target information includes at least one of: capability information of the UE, channel parameters of the UE, and a UE type of the UE; the target information is related to a target scaling parameter; a processor 110 for obtaining first information; the first information is used for indicating the target zooming parameter; the processor 110 is further configured to receive and demodulate, according to the target scaling parameter, information transmitted by a transport block of a target message sent to the UE by the network side device.

Optionally, the radio frequency unit 101 is further configured to receive DCI; wherein, the target field of the DCI carries the first information.

Optionally, the target field is: a reserved field in the DCI, or a dedicated field in the DCI dedicated to carry the first information, or a first field in the DCI for indicating a target function.

Optionally, the radio frequency unit 101 is further configured to detect a physical downlink control channel PDCCH and receive DCI; the DCI in the PDSCH scheduled by the PDCCH scrambled by the different RNTI indicates different scaling parameters.

Optionally, the processor 110 is further configured to determine first information according to the target information and the second information; wherein the second information comprises at least one of: a scaling factor of the target message, and a repetition factor of the target message.

Optionally, the target information is protocol-agreed or system information-indicated.

Optionally, the first information includes a target modulation and coding strategy MCS table, and the target MCS table includes the target scaling parameter.

In the terminal provided in the embodiment of the present application, the terminal feeds back target information (e.g., capability information of the UE, channel parameters of the UE, and a UE type of the UE) to the network side device, so that the network side device can determine first information adapted to the UE based on the target information, and then adjust a code rate of a transmission block of the target message sent to the UE based on a target scaling parameter indicated by the first information, thereby ensuring downlink coverage or performance of information transmission in different UE scenarios.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above-mentioned message transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or an instruction, to implement each process of the method embodiment of the above-mentioned message transmission method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

The embodiment of the present application provides a computer program product, where the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement each process of the method embodiment of the above message transmission method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

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

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A message transmission method, performed by a network side device, the method comprising:

determining first information according to target information, wherein the target information comprises at least one of the following items: capability information of User Equipment (UE), channel parameters of the UE and a UE type of the UE; the first information is used for indicating a target zooming parameter;

sending a target message to the UE according to the target scaling parameter; the target scaling parameter is used for adjusting the code rate of the transmission block of the target message.

2. The method of claim 1, wherein the target message comprises at least one of: msg2 in two-step random access, Msg4 in four-step random access, user-specific message.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

and sending the first information to the UE.

4. The method of claim 3, wherein the sending the first information to the UE comprises:

sending downlink control information DCI;

wherein the first information is carried in a target field of the DCI.

5. The method of claim 4, wherein the target field is: a reserved field in the DCI, or a dedicated field in the DCI, which is dedicated to carry the first information, or a first field in the DCI, which is used to indicate a target function.

6. The method of claim 5, wherein a first valid bit in the target field carries the first information if the target field is the first field, and wherein a second valid bit in the target field is used for indicating the target function.

7. The method of claim 4, wherein the sending the DCI comprises:

according to a Physical Downlink Control Channel (PDCCH), transmitting DCI;

the DCI in the PDSCH scheduled by the PDCCH scrambled by the different RNTI indicates different scaling parameters.

8. The method of claim 1, wherein determining the first information based on the target information comprises:

determining first information according to the target information and the second information;

wherein the second information comprises at least one of: a scaling factor of the target message, a repetition factor of the target message.

9. The method of claim 8, wherein the second information is a time-frequency resource allocation (TDRA) table, and wherein the TDRA table comprises at least one of the following items: a scaling factor for the first message, a repetition factor for the first message.

10. The method of claim 1, wherein the target scaling parameter is the same as the scaling parameter of the originally transmitted target message when the target message is a retransmitted message.

11. The method of claim 1, wherein the first information is protocol agreed or system information indicated.

12. The method of claim 1, wherein the first information comprises a target Modulation and Coding Scheme (MCS) table, and wherein the target MCS table comprises the target scaling parameter.

13. The method of claim 1, wherein different UEs of a reduced terminal capability type correspond to different target scaling parameters.

14. A message transmission method performed by a UE, the method comprising:

reporting target information to network side equipment; the target information includes at least one of: the capability information of the UE, the channel parameter of the UE, and the UE type of the UE; the target information is related to a target scaling parameter;

acquiring first information; the first information is used for indicating the target scaling parameter;

and receiving and demodulating information transmitted by a transmission block of a target message sent to the UE by the network side equipment according to the target scaling parameter.

15. The method of claim 14, wherein obtaining the first information comprises:

receiving DCI;

wherein the first information is carried in a target field of the DCI.

16. The method of claim 15, wherein the target field is: a reserved field in the DCI, or a dedicated field in the DCI, which is dedicated to carry the first information, or a first field in the DCI, which is used to indicate a target function.

17. The method of claim 16, wherein a first valid bit in the target field carries the first information if the target field is the first field, and wherein a second valid bit in the target field is used to indicate the target function.

18. The method of claim 15, wherein the receiving the DCI comprises:

detecting a Physical Downlink Control Channel (PDCCH) and receiving DCI;

and the DCI in the Physical Downlink Shared Channel (PDSCH) scheduled by the PDCCH scrambled by the different Radio Network Temporary Identifiers (RNTIs) indicates different scaling parameters.

19. The method of claim 14, wherein obtaining the first information comprises:

20. The method of claim 19, wherein the second information is a TDRA table, and wherein the TDRA table comprises at least one of the following items: a scaling factor for the first message, a repetition factor for the first message.

21. The method of claim 14, wherein the target scaling parameter is the same as the scaling parameter of the originally transmitted target message when the target message is a retransmitted message.

22. The method of claim 14, wherein the first information is protocol-agreed or system information-indicated.

23. The method of claim 14, wherein the first information comprises a target Modulation and Coding Scheme (MCS) table, and wherein the target MCS table comprises the target scaling parameter.

24. The method of claim 14, wherein different UEs of a reduced terminal capability type correspond to different target scaling parameters.

25. The apparatus of claim 14, wherein the target message comprises at least one of: msg2 in two-step random access, Msg4 in four-step random access, user-specific message.

26. A message transmission apparatus, characterized in that the apparatus comprises:

a determining module, configured to determine first information according to target information, where the target information includes at least one of: capability information of the UE, channel parameters of the UE, and a UE type of the UE; the first information is used for indicating a target zooming parameter;

a sending module, configured to send a target message to the UE according to the target scaling parameter; the target scaling parameter is used for adjusting the code rate of the transmission block of the target message.

27. A message transmission apparatus, characterized in that the apparatus comprises:

the reporting module is used for reporting the target information to the network side equipment; the target information includes at least one of: the capability information of the UE, the channel parameters of the UE and the UE type of the UE; the target information is related to a target scaling parameter;

the acquisition module is used for acquiring first information; the first information is used for indicating the target scaling parameter;

and the processing module is used for receiving and demodulating the information transmitted by the transmission block of the target message sent to the UE by the network side equipment according to the target scaling parameter acquired by the acquisition module.

28. A network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the message transmission method according to any one of claims 1 to 13.

29. A UE comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, carry out the steps of the message transmission method according to any one of claims 14 to 25.

30. A readable storage medium, characterized in that a program or instructions are stored thereon, which program or instructions, when executed by the processor, implement the message transmission method as claimed in any one of claims 1 to 13, or the steps of the message transmission method as claimed in any one of claims 14 to 25.