CN107005977B - Information transmission method, base station and user equipment - Google Patents

Abstract

An information transmission method, base station and user equipment. One of the information transmission methods includes: determining first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for first information transmission, first information transmission modulation and coding method indication information, frequency hopping indication information of the first information transmission, coverage enhancement transmission indication information of the first information transmission, the first information includes: random access response message and/or paging message ; send the first downlink control information to the UE, and send the first information to the UE according to the first downlink control information.

Description

Information transmission method, base station and user equipment

technical field

Embodiments of the present invention relate to the field of communications, and in particular, to an information transmission method, a base station, and a user equipment.

Background technique

The Internet of Things refers to the deployment of various devices with certain perception, computing, execution and communication capabilities to obtain information in the physical world, and to realize information transmission, coordination and processing through the network, so as to realize the interconnection of people and things, things and things. . In short, the Internet of Things is to realize the interconnection between people and things, and things and things. Possible applications include smart grids, smart agriculture, smart transportation, and environmental monitoring.

The 3rd Generation Partnership Project (English full name: 3rd Generation Partnership Project, English abbreviation: 3GPP) of the Mobile Communication Standardization Organization is carrying out technical research and standard optimization work for the Internet of Things business. Its main research and optimization directions are cost reduction and coverage enhancement. In terms of cost reduction, the working bandwidth of terminal equipment can be reduced. For example, limiting the working bandwidth of terminal equipment to 1.4MHz is an important research direction; in terms of coverage enhancement, it is mainly aimed at machine type communication (full name in English) with large path loss such as in the basement. :Machine TypeCommunication, English abbreviation: MTC) equipment provides coverage enhancement support, so that the above-mentioned equipment in special scenarios can access the network to obtain services, wherein, repeated signal transmission is one of the methods to achieve coverage enhancement. Under the technique of signal repetition, certain coverage enhancement can be brought, but more resources may be consumed. How to improve resource utilization in the case of using signal repetition to achieve coverage enhancement is a problem that needs to be solved.

For the random access response (English full name: Random Access Response, English abbreviation: RAR) message or paging message, according to the current protocol, the random access response message or paging message is sent through the physical downlink control channel (full English name: Physical Downlink). Control Channel, English abbreviation: PDCCH) scheduled physical downlink shared data channel (English full name: Physical downlink shared data channel, English abbreviation: PDSCH) transmission. User equipment (English full name: User Equipment, English abbreviation: UE) needs to receive the PDCCH first, and obtain the transport block size of the random access response message (or paging message) according to the indication of the control information in the received PDCCH (full English name: Transport Block Size, English abbreviation: TBS), and then receive a random access response message (or paging message) according to the determined TBS.

In a scenario where coverage enhancement transmission is required for the random access response message (or paging message), the user equipment must first receive the control channel of the scheduling information before receiving the random access response message (or paging message). The control channel of the device determines the size of the transport block carrying the random access response message (or paging message), and then receives the random access response message (or paging message) according to the determined transport block size. In order for the user equipment to successfully receive the random access response message (or paging message), the control channel needs to be repeated many times, and the random access response message (or paging message) also needs to be repeated many times, which increases the resource overhead of the system and reduces the The resource utilization rate of the network is greatly increased, and the detection complexity and power consumption overhead of the user equipment are greatly increased.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide an information transmission method, a base station, and a user equipment, which can improve the resource utilization efficiency of transmitting downlink control information and reduce the power consumption overhead of the user equipment to detect a channel.

In a first aspect, an embodiment of the present invention provides a method for transmitting information, including:

Determine the first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for transmission of the first information, indication information of a modulation and coding method for transmission of the first information, the Frequency hopping indication information of the first information transmission, coverage enhancement transmission indication information of the first information transmission, the first information includes: a random access response message and/or a paging message;

The first downlink control information is sent to the UE, and the first information is sent to the UE according to the first downlink control information.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the first downlink control information further includes at least one of the following information: downlink control information format distinction indication information, authorization distinction indication information , the resource allocation indication information in the narrowband used for the first information transmission, and the transport block size indication information for the first information transmission.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first downlink control information further includes at least one of the following information: system Information update indication information, warning indication information of earthquake and typhoon warning system, and warning indication information of commercial mobile warning service.

With reference to the first aspect or the first possible or second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first downlink control information further includes: One or more random access preamble indication information corresponding to the random access response message.

With reference to the first aspect or the first possible or the second possible or the third possible implementation manner of the first aspect, in the fourth possible implementation manner of the first aspect, the first downlink control information is The load size is the same as that of the second downlink control information, where the second downlink control information is used to carry the first information.

In a second aspect, an embodiment of the present invention provides a method for transmitting information, including:

receiving the first downlink control information sent by the base station;

At least one of the following information is acquired from the downlink control information: indication information of narrowband resources used for first information transmission, modulation and coding method indication information of first information transmission, and frequency hopping indication of first information transmission information, and coverage enhancement transmission indication information of the first information transmission, where the first information includes: a random access response message and/or a paging message;

The first information is received according to the first downlink control information.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the first downlink control information further includes at least one of the following information: a distinction indication information of a downlink control information format, a downlink control information grant The distinction indication information of the first information transmission, the resource allocation indication information in the narrowband used for the transmission of the first information, and the transmission block size indication information of the transmission of the first information.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the first downlink control information further includes at least one of the following information: system Information update indication information, warning indication information of earthquake and typhoon warning system, and warning indication information of commercial mobile warning service.

With reference to the second aspect or the first possible or second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the first downlink control information further includes: One or more random access preamble identifier indication information corresponding to the random access response message.

With reference to the second aspect or the first possible or second possible or third possible implementation manner of the second aspect, in the fourth possible implementation manner of the second aspect, the first information is carried in the second aspect. In the downlink control information, the load size of the first downlink control information is the same as the load size of the second downlink control information.

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

an information determination module, configured to determine first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for transmission of the first information, modulation and coding of the transmission of the first information base station indication information, frequency hopping indication information of the first information transmission, and coverage enhancement transmission indication information of the first information transmission, the first information includes: a random access response message and/or a paging message;

A sending module, configured to send the first downlink control information to the UE, and send the first information to the UE according to the first downlink control information.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the first downlink control information further includes at least one of the following information: a distinction indication information of a downlink control information format, an authorization distinction indication information , the resource allocation indication information in the narrowband used for the first information transmission, and the transport block size indication information for the first information transmission.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the first downlink control information further includes at least one of the following information: system Information update indication information, warning indication information of earthquake and typhoon warning system, and warning indication information of commercial mobile warning service.

With reference to the third aspect or the first possible or second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the first downlink control information further includes: One or more random access preamble indication information corresponding to the random access response message.

With reference to the third aspect or the first possible or the second possible or the third possible implementation manner of the third aspect, in the fourth possible implementation manner of the third aspect, the first downlink control information The load size is the same as that of the second downlink control information, where the second downlink control information is used to carry the first information.

In a fourth aspect, an embodiment of the present invention further provides a user equipment, including:

a receiving module, configured to receive the first downlink control information sent by the base station;

an acquisition module, configured to acquire at least one of the following information from the downlink control information: indication information of narrowband resources used for first information transmission, modulation and coding user equipment indication information of the first information transmission, the first information transmission Frequency hopping indication information for information transmission, and coverage enhancement transmission indication information for the first information transmission, where the first information includes: a random access response message and/or a paging message;

The receiving module is further configured to receive the first information according to the first downlink control information.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the first downlink control information further includes at least one of the following information: a distinction indication information of a downlink control information format, a downlink control information authorization The distinction indication information of the first information transmission, the resource allocation indication information in the narrowband used for the transmission of the first information, and the transmission block size indication information of the transmission of the first information.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the first downlink control information further includes at least one of the following information: system Information update indication information, warning indication information of earthquake and typhoon warning system, and warning indication information of commercial mobile warning service.

With reference to the fourth aspect or the first possible or second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the first downlink control information further includes: One or more random access preamble identifier indication information corresponding to the random access response message.

With reference to the fourth aspect or the first possible or the second possible or the third possible implementation manner of the fourth aspect, in the fourth possible implementation manner of the fourth aspect, the first information is carried in the second In the downlink control information, the load size of the first downlink control information is the same as the load size of the second downlink control information.

As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages:

In this embodiment of the present invention, first, the base station determines first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for transmission of the first information, Modulation and coding method indication information, frequency hopping indication information for first information transmission, and coverage enhancement transmission indication information for first information transmission. The first information includes: a random access response message and/or a paging message. The base station first sends the first downlink control information to the UE, and then sends the first information to the UE according to the first downlink control information. In this embodiment of the present invention, the first downlink control information is used to schedule the first information, and the first downlink control information includes at least one of the foregoing indication information, and the foregoing indication information has less bit overhead, so the first The downlink control information has a more compact structure, so that fewer resources can be used to transmit the first downlink control information, and the resource utilization efficiency of transmitting the first downlink control information can be improved, and the user equipment can detect the simplified first downlink control information. control information, so that the power consumption overhead of the user equipment for detecting the control channel can be reduced.

Description of drawings

Fig. 1 is the system architecture diagram that the transmission method of the information of the present invention is applied in the communication system;

2 is a schematic block diagram of a flowchart of a method for transmitting information according to an embodiment of the present invention;

3 is a schematic block diagram of a flowchart of another information transmission method provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of the composition and structure of a base station according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of the composition and structure of a user equipment according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a composition structure of another base station according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of the composition and structure of another user equipment according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention provide an information transmission method, a base station, and a user equipment, which can improve resource utilization efficiency for transmitting downlink control information, and reduce power consumption overhead for user equipment to detect control channels and data channels.

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art fall within the protection scope of the present invention.

The terms "first", "second" and the like in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, and this is only a way of distinguishing objects with the same attributes when describing the embodiments of the present invention. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, product or device comprising a series of elements is not necessarily limited to those elements, but may include no explicit or other units inherent to these processes, methods, products, or devices.

Firstly, the system architecture to which the information transmission method of the present invention is applied is briefly introduced. The present invention is mainly applied to an LTE system or an advanced long-term evolution (LTE-A, LTE Advanced) system. The present invention can also be applied to other communication systems, for example, Wideband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) and other systems , as long as there are entities in the communication system that can send information, and there are other entities in the communication system that can receive information. For example, the information is one or more of system information, Random Access Response (RAR) messages, and paging messages.

In this embodiment of the present invention, transmission may be sending or receiving. If the transmission of one side device is sending, the transmission of the other side communication device corresponding to this side device is receiving; and vice versa. The coverage enhancement in the embodiment of the present invention may be repeated transmission, spread spectrum transmission, retransmission, bundled time interval transmission, narrowband (such as subcarrier scheduling) transmission, and ultra-narrowband (such as the bandwidth is tens of hertz to tens of kilohertz) transmission , one or more of increasing power spectral density transmission, relaxing demand transmission, and constantly trying transmission. Please refer to FIG. 1 , which is a system architecture diagram of the application of the information transmission method of the present invention in a communication system. As shown in FIG. 1 , a base station (English name Base station) and user equipment (UE, User Equipment) 1 to UE6 A communication system is formed, in which the base station sends one or more of system information, RAR message and paging message to one or more UEs in UE1-UE6, and the base station is in the information transmission method of the present invention The sending end devices of the present invention, UE1 to UE6 are the receiving end devices in the information transmission method of the present invention. In addition, UE4 to UE6 also form a communication system. In this communication system, UE5 can be implemented as a function of a base station, and UE5 can send one or more of system information, RAR message and paging message to UE4 and UE6. one or more UEs.

Each of them will be described in detail below.

An embodiment of the information transmission method of the present invention can be applied to the transmission of information by a base station. Please refer to FIG. 2 . The information transmission method may include the following steps:

201. Determine first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for transmission of the first information, indication information of a modulation and coding method for transmission of the first information, Frequency hopping indication information for information transmission, and coverage enhancement transmission indication information for first information transmission. Wherein, the first information includes: a random access response message and/or a paging message.

In this embodiment of the present invention, when the base station needs to send control information to the user equipment through the control channel, the base station generates first downlink control information, where the first downlink control information is information transmitted by the control channel. In order to improve transmission efficiency and simplify the channel detection overhead of the UE, the base station needs to generate short first downlink control information. In this embodiment of the present invention, the brief first downlink control information generated by the base station includes at least one of the following four kinds of information: 1), indication information of narrowband resources used for transmission of the first information, 2), the first Modulation and coding method indication information for information transmission, 3), frequency hopping indication information for first information transmission, 4), coverage enhancement transmission indication information for first information transmission. Wherein, the first information includes: a random access response message and/or a paging message. It should be noted that the first downlink control information may include any one of the above four kinds of information, or any two kinds of information, or any three kinds of information, or all four kinds of information, wherein, in Which type of information or which type of information should be included in the first downlink control information can be specifically determined by the application scenario.

In some embodiments of the present invention, in addition to the first downlink control information including at least one of the indication information shown in the foregoing 1) to 4), the first downlink control information provided in the embodiments of the present invention also includes It includes at least one of the following four kinds of information: 5), the distinguishing indication information of the downlink control information format, 6), the authorization distinguishing indication information, 7), the resource allocation indication information in the narrowband used for the first information transmission, 8) . The transmission block size indication information of the first information transmission. It should be noted that the first downlink control information may include any one of the above four kinds of information, or any two kinds of information, or any three kinds of information, or all four kinds of information. Wherein, which type of information or which type of information should be included in the first downlink control information can be specifically determined by the application scenario.

In some embodiments of the present invention, the first downlink control information includes at least one of the indication information shown in the foregoing 1) to 4), or the first information includes the foregoing 1) to 8. ), the first downlink control information provided in this embodiment of the present invention also includes at least one of the following three types of information: 9), system information update indication information, 10), Warning indication information of earthquake and typhoon warning system, 11), warning indication information of commercial mobile warning service. It should be noted that the first downlink control information may include any one of the above three kinds of information, or any two kinds of information, or include all three kinds of information. Wherein, which type of information or which type of information should be included in the first downlink control information can be specifically determined by the application scenario.

In some embodiments of the present invention, the first downlink control information further includes: one or more random access preamble indication information corresponding to the random access response message. When the first downlink control information is used to schedule a random access response message, the first downlink control information also needs to include one or more random access preamble identifiers, one or more random access preamble identifiers and random access preamble identifiers corresponding to the incoming response message.

It should be noted that, in this embodiment of the present invention, the first downlink control information information may include one type of indication information or multiple types of indication information in the foregoing description. Description of downlink control information information.

202. Send the first downlink control information to the UE, and send the first information to the UE according to the first downlink control information.

In this embodiment of the present invention, after the base station generates the above-mentioned simplified first downlink control information, the first downlink control information is sent by the base station to the UE, and the UE can obtain the first downlink control information by receiving the first downlink control information. The scheduling instruction of the downlink control information to the first information, after the base station sends the first information to the UE according to the first downlink control information, the UE can receive the first information according to the scheduling instruction of the first downlink control information to the first information. information, the first information may be a random access response message or a paging message.

Specifically, in some embodiments of the present invention, if the base station sends the first information through the second downlink control information, and the first information can be carried in the second downlink control information, in order to reduce the UE's blind detection of the control channel In terms of complexity, the load size of the first downlink control information is the same as the load size of the second downlink control information. The payload size is the number of bits, or the length in bits. That is, the first downlink control information and the second downlink control information have the same number of bits. It should be noted that, in this embodiment of the present invention, a design method for the second downlink control information may be the same as or similar to a design method for the first downlink control information.

It can be seen from the description of the present invention in the above embodiments that first, the base station determines the first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for transmission of the first information, Modulation and coding method indication information for information transmission, frequency hopping indication information for first information transmission, and coverage enhancement transmission indication information for first information transmission. The first information includes: a random access response message and/or a paging message. Then, the base station sends the first downlink control information to the UE, and sends the first information to the UE according to the first downlink control information. In this embodiment of the present invention, the first downlink control information is used to schedule the first information, and the first downlink control information only includes at least one of the foregoing indication information, so the first downlink control information has a more compact structure , so that less resources can be used to transmit the first downlink control information, and the resource utilization efficiency of transmitting the first downlink control information can be improved. The user equipment only needs to detect the simplified first downlink control information, which can reduce the number of user equipment The power consumption overhead of the detection channel.

In the above embodiments, the information transmission method is described from the base station side. Next, the information transmission method provided by the present invention is described from the opposite end (user equipment) side of the base station. Please refer to FIG. 3 , another embodiment of the present invention. The transmission method of the provided information may include the following steps:

301. Receive first downlink control information sent by a base station.

In this embodiment of the present invention, after the base station generates the above-mentioned simplified first downlink control information, the first downlink control information is sent by the base station to the UE, and the UE receives the first downlink control information sent by the base station, and then triggers Step 302 is performed.

302. Acquire at least one of the following information from the downlink control information: indication information of narrowband resources used for first information transmission, indication information of modulation and coding method of first information transmission, frequency hopping indication information of first information transmission, Coverage enhancement transmission indication information of the first information transmission. The first information includes: a random access response message and/or a paging message.

In the embodiment of the present invention, the UE receives the first downlink control information sent by the base station, the first downlink control information received by the UE is the first downlink control information simplified by the base station, and the first downlink control information includes content Compared with the prior art, it is reduced, so the resource overhead for UE to detect the first downlink control information can be greatly reduced. Specifically, the simplified first downlink control information received by the UE includes at least one of the following information: 1), indication information of narrowband resources used for transmission of the first information, 2), modulation and coding of the transmission of the first information Method indication information, 3), frequency hopping indication information for first information transmission, 4), coverage enhancement transmission indication information for first information transmission. Wherein, the first information includes: a random access response message and/or a paging message. It should be noted that the first downlink control information may include any one of the above four kinds of information, or any two kinds of information, or any three kinds of information, or all four kinds of information, wherein, in Which type of information or which type of information should be included in the first downlink control information can be specifically determined by the application scenario.

In some embodiments of the present invention, in addition to the first downlink control information including at least one of the indication information shown in the foregoing 1) to 4), the first downlink control information provided in the embodiments of the present invention also includes It includes at least one of the following four kinds of information: 5), the distinguishing indication information of the downlink control information format, 6), the authorization distinguishing indication information, 7), the resource allocation indication information in the narrowband used for the first information transmission, 8) . The transmission block size indication information of the first information transmission. It should be noted that the first downlink control information may include any one of the above four kinds of information, or any two kinds of information, or any three kinds of information, or all four kinds of information. Wherein, which type of information or which type of information should be included in the first downlink control information can be specifically determined by the application scenario.

In some embodiments of the present invention, the first downlink control information includes at least one of the indication information shown in the foregoing 1) to 4), or the first information includes the foregoing 1) to 8. ), the first downlink control information provided in this embodiment of the present invention also includes at least one of the following three types of information: 9), system information update indication information, 10), Warning indication information of earthquake and typhoon warning system, 11), warning indication information of commercial mobile warning service. It should be noted that the first downlink control information may include any one of the above three kinds of information, or any two kinds of information, or include all three kinds of information, wherein, in the first downlink control information Which kind of information or which kinds of information should be included in the content can be determined by the application scenario.

In some embodiments of the present invention, the first downlink control information further includes: one or more random access preamble indication information corresponding to the random access response message. When the first downlink control information is used to schedule a random access response message, the first downlink control information also needs to include one or more random access preamble identifiers, one or more random access preamble identifiers and random access preamble identifiers corresponding to the incoming response message.

It should be noted that, in this embodiment of the present invention, the first downlink control information information may include one type of indication information or multiple types of indication information in the foregoing description. Description of downlink control information information.

303. Receive first information according to the first downlink control information.

In the embodiment of the present invention, the UE may obtain the scheduling indication of the first information by the first downlink control information by receiving the first downlink control information. After the base station sends the first information to the UE according to the first downlink control information, the UE may receive the first information according to the scheduling instruction of the first downlink control information. The first information may be a random access response message or a paging message.

In some embodiments of the present invention, the base station may carry the first information in the second downlink control information for transmission, and the UE may acquire the first information by detecting the second downlink control information, in order to reduce the complexity of blind detection of the control channel by the UE The load size of the first downlink control information is the same as the load size of the second downlink control information.

From the description of the present invention in the above embodiments, it can be known that, firstly, the UE receives the first downlink control information sent by the base station, and the UE obtains at least one of the following information from the first downlink control information: the narrowband resource used for the first information transmission The indication information of the first information transmission, the modulation and coding method indication information of the first information transmission, the frequency hopping indication information of the first information transmission, and the coverage enhancement transmission indication information of the first information transmission. The first information includes: a random access response message and/or a paging message, and then the UE receives the first information sent by the base station according to the first downlink control information. In this embodiment of the present invention, the first downlink control information is used to schedule the first information, and the first downlink control information only includes at least one of the foregoing indication information, so the first downlink control information has a more compact structure , so that less resources can be used to transmit the first downlink control information, and the resource utilization efficiency of transmitting the first downlink control information can be improved. The user equipment only needs to detect the simplified first downlink control information, which can reduce the number of user equipment The power consumption overhead of the detection channel.

In order to facilitate better understanding and implementation of the above solutions in the embodiments of the present invention, specific descriptions are given below by taking corresponding application scenarios.

Taking the processing of the random access response as an example, in the random access process of the existing LTE system, the UE needs to send a random access preamble first. After sending the random access preamble, the UE further receives a random access response message. The base station includes one or more random access responses in the random access response message to the UE. The random access response includes a random access preamble identifier (full English name: Random Access Preamble IDentitfier, English abbreviation: RAPID), for example, the RAPID identifies the random access preamble sent by the base station. After the UE receives the random access response, if the random access preamble identified by the RAPID in the random access response is the random access preamble sent by the UE, the UE considers that the random access response is the random access preamble sent by the base station to itself. the response to. In the LTE system, the random access response message sent by the base station to the UE is carried through the PDSCH. The UE needs to receive the control channel first, obtain the transport block size of the random access response message according to the indication of the control information in the received control channel, and then receive the random access response message according to the determined transport block size.

Taking the processing of the paging message as an example, in the existing LTE system, the UE in the idle state needs to monitor the paging message to determine whether the network side or the base station has paged the UE. The UE in the connected state needs to monitor the paging message to determine whether the system information has been updated. The paging message sent by the base station to the UE is carried through the data channel, and the data channel is scheduled by the control channel. Therefore, when the UE monitors the paging message, it needs to detect the control channel that schedules the paging message first. Only when the control channel is successfully detected, the data channel carrying the paging message is received according to the instruction of the control channel.

For a UE in idle state, once the UE successfully detects the data channel carrying the paging message, the UE needs to compare its paging UE (full name: Identity, English abbreviation: ID) with the paging UE ID carried in the paging message. If the match is successful, the UE considers that the network side or the base station has paged the UE. Otherwise, the UE considers that the paging message did not page the UE. For a connected UE, once the UE successfully detects the data channel carrying the paging message, the UE needs to check whether the paging message indicates system information modification.

A paging message may contain one or more paging UE IDs. Thus, one paging message can initiate paging to one or more UEs. As mentioned above, the UE needs to successfully detect the control channel and the paging message scheduled by the control channel before determining whether the paging message paging the UE or whether the paging message indicates that the system message is updated. It may be possible for a UE to successfully detect a control channel and a paging message scheduled by a control channel, but find that the paging message does not page the UE or that the paging message does not indicate a system information update. In this way, the UE consumes a lot of power consumption in vain. Especially for low-cost or low-complex UEs, the power consumption issue is even more critical.

In the random access process and the paging process implemented as above, the information transmission method provided by the embodiment of the present invention can be implemented. The base station simplifies the design of the first downlink control information for scheduling the first information. An example is given next. An embodiment of the present invention provides a method for transmitting downlink control information and first information, wherein the first information is a random access response message and/or a paging message, and the transmission of the first information is performed by the first downlink control information schedule. The embodiment of the present invention mainly solves what content the first downlink control information specifically includes when the first downlink control information schedules the first information.

In some embodiments of the present invention, the first downlink control information may include: indication information of narrowband resources used for transmission of the first information. Considering coverage enhancement or support for low-complexity or low-cost UEs, some narrowband resources may be allocated in the system for coverage-enhancing transmission or serving low-complexity (or low-cost) UEs. A narrowband resource or narrowband is a specific frequency resource, and a narrowband resource can be composed of one or more resource blocks, or composed of one or more subcarriers. Among them, low-complexity (or low-cost) UEs can only receive and/or transmit information on one narrowband at the same time. Therefore, the first information can only be transmitted in a narrow band. The first downlink control information may include a narrowband resource indicating where the first information is transmitted. For example, the number of bits (English: bits) required to indicate narrowband resources is: log2(floor(NDLRB/6) or floor(log2(NDLRB/6)), or ceil(log2(NDLRB/6)). In the formula, 6 Take physical resource blocks (full name: PhysicalResource Block, English abbreviation: PRB) to form a narrowband as an example. If the narrowband size is n, the required bits in this field can be: log2(floor(NDLRB/n)) or floor(log2 (NDLRB/n)), or ceil(log2(NDLRB/n)). NDLRB is the downlink bandwidth in PRB units. For example, 1.4MHz bandwidth has 6 PRBs. 20MHz bandwidth has 100 PRBs, so it can be divided into For 16 narrowbands, 4 bits are required to indicate. The floor function indicates rounding down, and the ceil function indicates rounding up. Or the number of bits required to indicate narrowband resources is: floor(log2(M)) or ceil(log2 (M)), where M is the number of narrowbands configured by the base station.

In some embodiments of the present invention, the first downlink control information may include: resource allocation indication information in a narrowband used for transmission of the first information. Taking the narrowband including 6 PRBs as an example, the resource allocation in the narrowband indicates the location of the 6 PRB narrowband, that is, the resource allocation in the narrowband specifically indicates which of the 6 PRBs in the narrowband are used for random access response. transmission. An example of the bits required for the resource allocation indication information in the narrowband is as follows: if the first information transmission occupies all PRBs in the narrowband, this field can be omitted. For example, 6 bits can be used to indicate 6 PRBs in the manner indicated by the bitmap. . In order to reduce the number of indicated bits, the number of PRBs occupied by the first information transmission and possible PRB positions may be limited. For example, it is assumed that the indexes of the PRBs included in the narrowband are: PRB n, PRB n+1, PRB n+2, PRB n+3, PRB n+4, PRB n+5. The first information transmission is restricted to occupy only 2 PRBs, 4 PRBs, and 6 PRBs. As shown in Table 1 below, a method of indicating narrowband resources used for transmission with 3 bits is illustrated. It can be understood that, the following Table 1 is only for illustration, and the corresponding relationship between the bit status of the resource indication in the narrowband and the resource indication in the narrowband can also be changed.

As shown in Table 2 below, a method for indicating narrowband resources used for transmission with 2 bits is illustrated.

It should be noted that the correspondence between the narrowband resource indication bit status and the narrowband resource indication in the tables of Table 1 and Table 2 in the embodiment of the present invention is only exemplary, and in fact, the narrowband resource indication bit status and the narrowband resource indication bit status are The indicated correspondences can be transformed. As long as the resource allocation of 2 RBs, 4 RBs, and 6 RBs in the narrowband is indicated for the control channel transmission with bits, or the resource allocation of 4 RBs and 6 RBs in the narrowband is indicated for the transmission of the control channel with bits can be, and need not be limited to those shown in the above table.

In some embodiments of the present invention, the first downlink control information may include: modulation and coding method indication information of the first information transmission, and the bits required by the field may be determined according to the number of supported modulation and coding methods. For example, if a fixed modulation and coding scheme is supported, or the modulation and coding scheme is implicitly determined according to other information, this field may not be included. For example, the modulation coding method can be indicated with 2 to 4 bits.

In some embodiments of the present invention, the first downlink control information may include: frequency hopping indication information of the first information transmission. The frequency hopping configuration used to indicate the transmission of the first information. If the transmitted first information is always frequency hopping, or the transmitted first information is always frequency hopping, or the frequency hopping is pre-specified or pre-configured, this field may not be included. The frequency hopping configuration can be indicated with bits 0 to 2.

In some embodiments of the present invention, the first downlink control information may include: grant distinction indication information, which is used for a distinction indication of an uplink grant and a downlink grant. If the UE also needs to detect whether the downlink control information is used for uplink scheduling in the search space of the control channel for scheduling the transmission of the first information, and the size of the downlink control information for uplink scheduling is the same as the size of the downlink control information for scheduling the first information, then it needs to 1 bit indicates uplink grant and downlink grant. If the control channel of the UE in the search space of the control channel for scheduling the first information transmission is not used for uplink scheduling, then this field is not required to distinguish the uplink grant from the downlink grant. Considering that there are only 6 PRBs in the narrowband, and the control channel scheduling the first information transmission needs to occupy more resources or ensure performance through repetition, it can be specified that the uplink grant is not detected in the search space of the control channel scheduling the first information transmission. In this way, this field may not be included, thereby saving the load size of the first downlink control information.

In some embodiments of the present invention, the first downlink control information may include: system information update indication information (English name systemInfoModification). For example, in the first downlink control information, one bit may be used to indicate system information update. For example, if the first downlink control information indicates systemInfoModification, the UE considers that the system information may be updated. Of course, the first downlink control information may also indicate which specific system information has been updated. For example, it may be indicated in a bitmap (English name bitmap) manner or a combination of multiple bits indicates which system information has been updated.

In some embodiments of the present invention, the first downlink control information may include: warning indication information of an Earthquake and Tsunami Warning System (English full name: Earthquake and Tsunami Warning System, English abbreviation: ETWS). For example, 1 bit may be used to indicate ETWS in the first downlink control information.

In some embodiments of the present invention, the first downlink control information may include: alarm indication information of a Commercial Mobile Alert Service (English full name: Commercial Mobile Alert Service, English abbreviation: CMAS). The CMAS can be indicated with 1 bit in the downstream control information as follows.

In some embodiments of the present invention, the first downlink control information may include: transport block size indication information of the first information transmission. If the size of the transport block transmitted by the first information is determined according to other parameters that have already been indicated, the first downlink control information does not need a field to indicate the size of the transport block. Otherwise, the first downlink control information needs to indicate the size of the transport block, for example, 2 bits are used to indicate the size of the transport block.

In some embodiments of the present invention, the first downlink control information may include: coverage enhancement transmission indication information of the first information transmission. The coverage enhancement transmission indication information is coverage enhancement level information or repetition number information or bundle transmission size information. If the coverage enhancement transmission indication information of the first information transmission is determined according to the repetition level (or repetition quantity) of the channel before the first information transmission, the first downlink control information does not need to indicate the coverage enhancement transmission indication information of the first information transmission . The channel before the first information transmission may be a random access preamble, or a control channel for scheduling a random access response, or a control channel for scheduling a paging message. Otherwise, 1 to 3 bits may be used to indicate the overlay enhanced transmission indication information. The number of repetitions of the first information may be the number of repetitions A plus the number of repetitions B. The number of repetitions A is the number of repetitions determined according to the coverage enhancement level, or the number of repetitions configured by high-layer signaling, or the number of predetermined repetitions. The number of repetitions B is the number of repetitions indicated by the downlink control information. Therefore, the number of repetitions B indicated by the downlink control information can be regarded as a fine-tuning of the number of repetitions A. Of course, it is also the content of the present invention to replace the above-mentioned repetition times with the bundled transmission size.

In some embodiments of the present invention, the first downlink control information may include: indication information for distinguishing the format of the downlink control information, and it is necessary to distinguish whether the downlink control information is the control information for scheduling the first information, or the downlink control information carries the first information. control information. The distinguishing method includes but is not limited to: the display field indication in the first downlink control information, such as using 1 bit to distinguish, or using 2 bits to form a joint indication of format distinction and authorization distinction.

In some embodiments of the present invention, different control channel scrambling codes may also be used to distinguish whether the downlink control information is the control information for scheduling the first information, or the downlink control information carries the control information of the first information. For example, for the downlink control information to carry the first information, use a redesigned wireless network temporary identity (English full name: Radio Network Tempory Identity, English abbreviation: RNTI) or RNTI set, for the downlink control information to schedule the first information, use the existing RNTI .

Or the content or function of the downlink control information is implicitly determined according to the coverage enhancement level or the channel quality. For example, the downlink control information corresponding to the coverage enhancement level Y carries (ie includes) the first information, and the downlink control information corresponding to the coverage enhancement level X schedules the first information. Usually the number of repetitions required to cover enhancement level X is less than the number of repetitions required to cover enhancement level Y. For another example, the downlink control information corresponding to the coverage enhancement carries (ie includes) the first information, and the downlink control information corresponding to the non-coverage enhancement schedules the first information.

公式中的括号为向上取整。In some embodiments of the present invention, the first downlink control information may include: random access preamble indication information, and the random access preamble indication information may be a simplified random access preamble identifier (full English name: Random Access Preamble IDentitfier, English Abbreviation: RAPID). The RAPID is used to identify the random access preamble randomly selected by the UE in the random access procedure. The existing LTE protocol supports 64 random access preambles on one PRACH resource, so 6 bits are required to indicate the RAPID. In the coverage enhancement scenario, there is a one-to-one mapping relationship between the coverage enhancement level (for example, the coverage enhancement level is the repetition level or the number of repetitions) and the random access resources. If the above correspondence is based on a one-to-one correspondence between the preamble packet and the coverage enhancement level, the number of bits indicating the RAPID may be reduced. For example, there are 64 preambles in total and three coverage enhancement levels are supported in total. If the number of preambles of the three levels is approximately equally divided, a level can have 21 or 22 preambles, then only 5 bits are needed to indicate the preamble. Further, if the number of preambles allocated by a certain level is small, the bits required to indicate the preamble may be less. If the number of preambles allocated by a certain level is num_preamble, then the number of bits required to indicate the RAPID corresponding to the PRACH group can be:

Parentheses in formulas are rounded up.

In addition, the base station may also indicate the received random access preamble implicitly, and the RAPID is not indicated or indicated by few bits in the random access response information. For example, the temporary identification of the wireless network that now scrambles the random access response is determined according to the time index (subframe number) and frequency resource index of the random access preamble transmission. Therefore, the wireless network temporary identifier can implicitly reflect the time index and the frequency resource index. Similarly, if the RNTI is determined according to the index of the random access preamble, the RNTI may implicitly indicate the random access preamble or the number of the random access preamble. For example, assuming that there are 64 RNTIs, where each RNTI corresponds to a random access preamble, the wireless network temporary identity of the scrambled random access response may indicate the random access preamble identity. For another example, assuming that there are 32 RNTIs, each of which corresponds to two random access preambles, a bit in the random access response information may further indicate a random access among the above two random access preambles. leading. The RNTI associated with the random access preamble can be configured through pre-stipulation or signaling. The association relationship between the RNTI and the random access preamble may be pre-specified or configured by signaling. For example, a set or range of RNTIs is pre-specified, and each RNTI in the set or range of RNTIs is associated with a determined random access preamble. For another example, the functional relationship between the RNTI and the random access preamble index may be pre-specified. That is, RNTI=function(t_id, f_id, preamble_id) or RNTI=function(preamble_id), where t_id is the index of the PRACH time resource (in one or more radio frames). f_id is the index of the PRACH frequency resource. preamble_id is the index of the preamble. Specifically, a functional relationship is RNTI=1+t_id+N*f_id+M*preamble_id, where N and M are preset constants. For example, N is the number of indexes of time resources, and M is the product of the number of indexes of PRACH frequency resources and the number of indexes of PRACH time resources.

If the time resource is in subframes, there are at most 10 subframes in one radio frame that can transmit the preamble, that is, N=10. If the PRACH time resource is in units of X subframes, a radio frame has at most ceil(10/X) time resources to send the preamble, where ceil is rounded up, ie N=ceil(10/X). If the PRACH time resources are resources in Y radio frames, and the PRACH time resources are in units of X subframes, then Y radio frames have at most ceil(Y*10/X) time resources to send the preamble, that is, N=ceil (Y*10/X). For example, in the coverage enhancement scenario, the transmission of the preamble needs to be repeated, so the chance of random access in the same time period will be much less. For example, a subframe of the same 10ms, according to the original protocol, each subframe can have random access resources at most, that is, there are 10 random access opportunities; and in the coverage enhancement scenario, even if the number of repetitions is 2, the maximum There are also only 5 access opportunities. This can reduce the number of random access opportunities, that is, the number of RNTIs.

The indexes of PRACH frequency resources and the number of indexes of PRACH frequency resources may be numbered independently for each coverage enhancement level. For example, coverage enhancement level 1 has 2 PRACH frequency resources, the indexes are {0, 1}, and the number of indexes of PRACH frequency resources is 2; coverage enhancement level 2 has 3 PRACH frequency resources, and the indexes are {0, 1, 2}, the number of indexes of PRACH frequency resources is 3. The index of the PRACH frequency resource and the number of indexes of the PRACH frequency resource may be numbered jointly by multiple coverage enhancement levels. For example, the coverage enhancement level 1 has 2 PRACH frequency resources, the indices are {0, 1}, and the coverage enhancement level 2 has 3 PRACH frequency resources, the indices are {2, 3, 4}, and the number of indexes of the PRACH frequency resources is 5. For another example, the number of indexes of PRACH frequency resources may be determined independently by the frequency division duplex system and the time division duplex system, or determined according to the largest number of indexes of PRACH frequency resources in the frequency division duplex system and the time division duplex system. For example, there are at most F1 PRACH frequency resources in the frequency division duplex system, and at most F2 PRACH frequency resources in the time division duplex system, then the number of indexes of the PRACH frequency resources is equal to Max (F1, F2), where Max is the maximum value function.

In some embodiments of the present invention, the indication information of the random access preamble is used to indicate whether the base station detects the random access preamble. For example, the indication information of the random access preamble can be indicated by a bitmap. Each bit in the bit string indicates whether the base station has received one or more random access preambles. For example, a PRACH resource group includes 16 preambles, and 16 bits can be used to indicate whether the base station detects a random access preamble according to a method indicated by a bitmap, wherein each bit corresponds to a random access preamble.

It should be noted that, usually only when the first downlink control information is a scheduling paging message, the first downlink control information may include one of an indication of system information update, an indication of an earthquake and typhoon warning system, and an indication of a commercial mobile warning service. or various instructions. When the first downlink control information schedules a random access response message, the first downlink control information may include one or more random access preamble identifiers. The number of random access preamble identifiers included in the first downlink control information is known or indicated by signaling, as indicated in the downlink control information. If the first downlink control information for scheduling random access response transmissions (or paging message transmissions) and the second downlink control information for carrying random access response transmissions (or paging message transmissions) have the same size, it is necessary to The bits included in the first downlink control information for scheduling random access response transmission (or paging message transmission) are extended, so that the bits included in the first downlink control information for scheduling random access response transmission (or paging message transmission) The number of bits is the same as the number of bits included in the second downlink control information carrying the random access response transmission (or the paging message transmission). The bits included in the first downlink control information of the above-mentioned scheduled random access response transmission (or paging message transmission) may be extended to form the final first downlink control information. The method of bit extension includes one or more of the following:

All fields or some fields of the first downlink control information are repeated, wherein the repetition may be an integer multiple repetition or a non-integer multiple repetition, and in addition, zeros or padding bits may be added to the first downlink control information. Or, concatenate (all or part of) contents of each first downlink control information in the plurality of first downlink control information together to form the final first downlink control information, wherein each first downlink control information Associate dispatch a message. Different first downlink control information in the plurality of first downlink control information may be different UE scheduling messages or may be the same UE scheduling messages. The bits in the first downlink control information are encoded, and the encoded bits are used as original bits included in the final downlink control information. For example, the above code is Reed-Solomon (full English name: Reed-Muller, English abbreviation: RM) coding or Reed-Solomon (English full name: Reed-Solomon, English abbreviation: RS) coding.

Certainly, the field type included in the first downlink control information is irrelevant to the information type scheduled by the first downlink control information. For example, the field type included in the first downlink control information when the first downlink control information schedules the random access response message is the same as the field type included in the first downlink control information when the first downlink control information schedules the paging message. It should also be noted that, whether the first downlink control information schedules the first information may be determined in an implicit manner. For coverage enhancement (eg, repeated transmission) level X, it is determined that the first downlink control information schedules the first information. For coverage enhancement level Y, it is determined that the first downlink control information does not schedule the first information. Usually the number of repetitions required to cover enhancement level X is less than the number of repetitions required to cover enhancement level Y.

It should be noted that, for the sake of simple description, the foregoing method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. As in accordance with the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In order to better implement the above solutions of the embodiments of the present invention, related devices for implementing the above solutions are also provided below.

Referring to FIG. 4 , a base station 400 provided by an embodiment of the present invention may include: an information determining module 401 and a sending module 402, wherein:

An information determination module 401, configured to determine first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for first information transmission, modulation of first information transmission The base station indication information, the frequency hopping indication information of the first information transmission, and the coverage enhancement transmission indication information of the first information transmission are encoded. The first information includes: a random access response message and/or a paging message;

The sending module 402 is configured to send the first downlink control information to the UE, and send the first information to the UE according to the first downlink control information.

In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: a distinction indication information of a downlink control information format, an authorization distinction indication information, a narrowband used for transmission of the first information The resource allocation indication information in the content, and the transmission block size indication information of the first information transmission.

In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: system information update indication information, warning indication information of an earthquake and typhoon warning system, and warning indication information of a commercial mobile warning service .

In some embodiments of the present invention, the first downlink control information further includes: one or more random access preamble indication information corresponding to the random access response message.

In some embodiments of the present invention, the load size of the first downlink control information is the same as the load size of the second downlink control information, wherein the second downlink control information carries the first information.

It can be seen from the description of the present invention in the above embodiments that first, the base station determines the first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for transmission of the first information, Modulation and coding method indication information for information transmission, frequency hopping indication information for first information transmission, and coverage enhancement transmission indication information for first information transmission. The first information includes: a random access response message and/or a paging message. The base station sends the first downlink control information to the UE, and sends the first information to the UE according to the first downlink control information. In this embodiment of the present invention, the first downlink control information is used to schedule the first information, and the first downlink control information only includes at least one of the foregoing indication information, so the first downlink control information has a more compact structure , so that less resources can be used to transmit the first downlink control information, and the resource utilization efficiency of transmitting the first downlink control information can be improved. The user equipment only needs to detect the simplified first downlink control information, which can reduce the number of user equipment The power consumption overhead of the detection channel.

Referring to FIG. 5, a user equipment 500 provided by an embodiment of the present invention may include: a receiving module 501 and an obtaining module 502, wherein:

A receiving module 501, configured to receive the first downlink control information sent by the base station;

The obtaining module 502 is configured to obtain at least one of the following information from the downlink control information: indication information of narrowband resources used for first information transmission, modulation and coding user equipment indication information of first information transmission, the first information transmission Frequency hopping indication information for information transmission, and coverage enhancement transmission indication information for the first information transmission. The first information includes: a random access response message and/or a paging message;

The receiving module 501 is further configured to receive the first information according to the first downlink control information.

In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: identification information of downlink control information formats, identification information of downlink control information grants, and the first information Resource allocation indication information in the narrowband used for transmission, and transmission block size indication information for transmission of the first information.

In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: system information update indication information, warning indication information of an earthquake and typhoon warning system, and warning indication information of a commercial mobile warning service .

In some embodiments of the present invention, the first downlink control information further includes: one or more random access preamble identifier indication information corresponding to the random access response message.

In some embodiments of the present invention, the first information is carried in the second downlink control information, and the load size of the first downlink control information is the same as the load size of the second downlink control information.

From the description of the present invention in the above embodiments, it can be known that, firstly, the UE receives the first downlink control information sent by the base station, and the UE obtains at least one of the following information from the first downlink control information: the narrowband resource used for the first information transmission The indication information of the first information transmission, the modulation and coding method indication information of the first information transmission, the frequency hopping indication information of the first information transmission, and the coverage enhancement transmission indication information of the first information transmission. The first information includes: a random access response message and/or a paging message. The UE receives the first information sent by the base station according to the first downlink control information. In this embodiment of the present invention, the first downlink control information is used to schedule the first information, and the first downlink control information only includes at least one of the foregoing indication information, so the first downlink control information has a more compact structure , so that less resources can be used to transmit the first downlink control information, and the resource utilization efficiency of transmitting the first downlink control information can be improved. The user equipment only needs to detect the simplified first downlink control information, which can reduce the number of user equipment The power consumption overhead of the detection channel.

It should be noted that the information exchange, execution process and other contents between the modules/units of the above device are based on the same concept as the method embodiments of the present invention, and the technical effects brought by them are the same as those of the method embodiments of the present invention, and the specific content can be Refer to the descriptions in the foregoing method embodiments of the present invention, which will not be repeated here.

An embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores a program, and the program executes some or all of the steps described in the above method embodiments.

Next, another base station provided by an embodiment of the present invention is introduced. Referring to FIG. 6 , the base station 600 includes:

An input device 601, an output device 602, a processor 603, and a memory 604 (wherein the number of processors 603 in the base station 600 may be one or more, and one processor is taken as an example in FIG. 6). In some embodiments of the present invention, the input device 601 , the output device 602 , the processor 603 and the memory 604 may be connected by a bus or in other ways, wherein the connection by a bus is taken as an example in FIG. 6 .

Wherein, the processor 603 is configured to execute the information transmission method implemented by the base station side. Specifically, the processor 603 is configured to execute the following steps:

Determine the first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for transmission of the first information, indication information of a modulation and coding method for transmission of the first information, the Frequency hopping indication information of the first information transmission, coverage enhancement transmission indication information of the first information transmission, the first information includes: a random access response message and/or a paging message;

The first downlink control information is sent to the UE, and the first information is sent to the UE according to the first downlink control information.

In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: a distinction indication information of a downlink control information format, an authorization distinction indication information, a narrowband used for transmission of the first information The resource allocation indication information in the content, and the transmission block size indication information of the first information transmission.

In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: system information update indication information, warning indication information of an earthquake and typhoon warning system, and warning indication information of a commercial mobile warning service .

In some embodiments of the present invention, the first downlink control information further includes: one or more random access preamble indication information corresponding to the random access response message.

In some embodiments of the present invention, the load size of the first downlink control information is the same as the load size of the second downlink control information, wherein the second downlink control information is used to carry the first information.

It can be seen from the description of the present invention in the above embodiments that first, the base station determines the first downlink control information, where the first downlink control information includes at least one of the following information: indication information of narrowband resources used for transmission of the first information, Modulation and coding method indication information for information transmission, frequency hopping indication information for first information transmission, and coverage enhancement transmission indication information for first information transmission. The first information includes: a random access response message and/or a paging message. The base station sends the first downlink control information to the UE, and sends the first information to the UE according to the first downlink control information. In this embodiment of the present invention, the first downlink control information is used to schedule the first information, and the first downlink control information only includes at least one of the foregoing indication information, so the first downlink control information has a more compact structure , so that less resources can be used to transmit the first downlink control information, and the resource utilization efficiency of transmitting the first downlink control information can be improved. The user equipment only needs to detect the simplified first downlink control information, which can reduce the number of user equipment The power consumption overhead of the detection channel.

Next, another user equipment provided by an embodiment of the present invention is introduced. Referring to FIG. 7 , the user equipment 700 includes:

An input device 701, an output device 702, a processor 703, and a memory 704 (wherein the number of processors 703 in the user equipment 700 may be one or more, and one processor is taken as an example in FIG. 7). In some embodiments of the present invention, the input device 701 , the output device 702 , the processor 703 and the memory 704 may be connected through a bus or other means, wherein the connection through a bus is taken as an example in FIG. 7 .

Wherein, the processor 703 is configured to execute the aforementioned information transmission method implemented by the user equipment side. Specifically, the processor 703 is configured to execute the following steps:

receiving the first downlink control information sent by the base station;

At least one of the following information is acquired from the downlink control information: indication information of narrowband resources used for first information transmission, modulation and coding method indication information of first information transmission, and frequency hopping indication of first information transmission information, and coverage enhancement transmission indication information of the first information transmission, where the first information includes: a random access response message and/or a paging message;

The first information is received according to the first downlink control information.

In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: identification information of downlink control information formats, identification information of downlink control information grants, and the first information Resource allocation indication information in the narrowband used for transmission, and transmission block size indication information for transmission of the first information.

In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: system information update indication information, warning indication information of an earthquake and typhoon warning system, and warning indication information of a commercial mobile warning service .

In some embodiments of the present invention, the first downlink control information further includes: one or more random access preamble identifier indication information corresponding to the random access response message.

In some embodiments of the present invention, the first information is carried in the second downlink control information, and the load size of the first downlink control information is the same as the load size of the second downlink control information.

From the description of the present invention in the above embodiments, it can be known that, firstly, the UE receives the first downlink control information sent by the base station, and the UE obtains at least one of the following information from the first downlink control information: the narrowband resource used for the first information transmission The indication information of the first information transmission, the modulation and coding method indication information of the first information transmission, the frequency hopping indication information of the first information transmission, and the coverage enhancement transmission indication information of the first information transmission. The first information includes: a random access response message and/or a paging message. The UE receives the first information sent by the base station according to the first downlink control information. In this embodiment of the present invention, the first downlink control information is used to schedule the first information, and the first downlink control information only includes at least one of the foregoing indication information, so the first downlink control information has a more compact structure , so that less resources can be used to transmit the first downlink control information, and the resource utilization efficiency of transmitting the first downlink control information can be improved. The user equipment only needs to detect the simplified first downlink control information, which can reduce the number of user equipment The power consumption overhead of the detection channel.

In addition, it should be noted that the device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be A physical unit, which can be located in one place or distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. In addition, in the drawings of the apparatus embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. Those of ordinary skill in the art can understand and implement it without creative effort.

From the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general-purpose hardware. Special components, etc. to achieve. Under normal circumstances, all functions completed by a computer program can be easily implemented by corresponding hardware, and the specific hardware structures used to implement the same function can also be various, such as analog circuits, digital circuits or special circuit, etc. However, in many cases a software program implementation is the preferred embodiment for the present invention. Based on such understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art. The computer software products are stored in a readable storage medium, such as a floppy disk of a computer. , U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or CD, etc., including several instructions to make a computer device (which can be A personal computer, a server, or a network device, etc.) executes the methods described in the various embodiments of the present invention.

To sum up, the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that it can still be used for The technical solutions described in the above embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. A method for transmitting information, comprising:

determining first downlink control information, wherein the first downlink control information comprises: indication information of a narrowband resource used for first information transmission and indication information of a modulation coding method of the first information transmission, wherein the first information comprises: a paging message;

sending the first downlink control information to User Equipment (UE), and sending the first information to the UE according to the first downlink control information;

the first downlink control information further comprises transport block size indication information of the first information transmission;

the first downlink control information further includes at least one of the following information: the system information updating indication information, the alarm indication information of the earthquake typhoon alarm system and the alarm indication information of the commercial mobile alarm service.

2. A method for transmitting information, comprising:

receiving first downlink control information sent by a base station;

acquiring the following information from the downlink control information: indication information of a narrowband resource used for first information transmission and indication information of a modulation coding method of the first information transmission, wherein the first information comprises: a paging message;

receiving the first information according to the first downlink control information;

the first downlink control information further comprises transport block size indication information of the first information transmission;

the first downlink control information further includes at least one of the following information: the system information updating indication information, the alarm indication information of the earthquake typhoon alarm system and the alarm indication information of the commercial mobile alarm service.

3. A communications apparatus, comprising:

an information determining module, configured to determine first downlink control information, where the first downlink control information includes: indication information of a narrowband resource used for first information transmission and indication information of a modulation coding base station of the first information transmission, wherein the first information comprises: a paging message;

a sending module, configured to send the first downlink control information to a user equipment UE, and send the first information to the UE according to the first downlink control information;

the first downlink control information further comprises transport block size indication information of the first information transmission;

the first downlink control information further includes at least one of the following information: the system information updating indication information, the alarm indication information of the earthquake typhoon alarm system and the alarm indication information of the commercial mobile alarm service.

4. A communications apparatus, comprising:

the receiving module is used for receiving first downlink control information sent by a base station;

an obtaining module, configured to obtain, from the downlink control information: indication information of a narrowband resource used for first information transmission and indication information of modulation coding user equipment of the first information transmission, wherein the first information comprises: a paging message;

the receiving module is further configured to receive the first information according to the first downlink control information;

the first downlink control information further includes: transport block size indication information for the first information transmission;

the first downlink control information further includes at least one of the following information: the system information updating indication information, the alarm indication information of the earthquake typhoon alarm system and the alarm indication information of the commercial mobile alarm service.

5. A computer storage medium, characterized in that it stores a program which, when run on a computer, causes the program to perform the method of claim 1 or 2.

6. A communications apparatus, comprising: a processor and a memory; the memory is configured to store one or more computer programs that, when executed by the communication apparatus, are executed by the processor to cause the communication apparatus to perform the method of claim 1.

7. A communications apparatus, comprising: a processor and a memory; the memory for storing one or more computer programs which, when executed by the communication apparatus, are executable by the processor to cause the communication apparatus to perform the method of claim 2.

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