Information transmission method, base station and user equipment

Abstract

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

Description

[0001] This application is a divisional application of the Chinese patent application filed with the China Patent Office on August 14, 2015, with application number 201580038884.2 and invention name “A method for transmitting information, a base station and a user device”. Technical Field

[0002] The 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 Art

[0003] The Internet of Things refers to a network that connects people and things, and things and things, by deploying various devices with certain perception, computing, execution and communication capabilities to obtain information from the physical world, and to achieve information transmission, coordination and processing through the network. In short, the Internet of Things is to achieve the interconnection between people and things, and things and things. Possible applications include smart grids, smart agriculture, smart transportation, and environmental monitoring.

[0004] The 3rd Generation Partnership Project (3GPP), a mobile communications standardization organization, is conducting 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, such as limiting the working bandwidth of terminal equipment to 1.4MHz, which is an important research direction; in terms of coverage enhancement, it mainly provides coverage enhancement support for machine type communication (MTC) devices in basements and other places with large road losses, so that the above-mentioned devices in special scenarios can access the network to obtain services. Among them, signal repetition transmission is one of the methods to achieve coverage enhancement. Under the technology of signal repetition, it can bring certain coverage enhancement, but it may consume more resources. How to improve resource utilization when using signal repetition to achieve coverage enhancement is a problem that needs to be solved.

[0005] For a random access response (RAR) message or a paging message, according to the current protocol, the random access response message or the paging message is transmitted through a physical downlink shared data channel (PDSCH) scheduled by a physical downlink control channel (PDCCH). A user equipment (UE) needs to first receive the PDCCH, obtain a transport block size (TBS) of the random access response message (or paging message) according to the control information in the received PDCCH, and then receive the random access response message (or paging message) according to the determined TBS.

[0006] In the scenario where coverage enhancement transmission of a random access response message (or paging message) is required, the user equipment must first receive the control channel of the scheduling information before receiving the random access response message (or paging message), determine the transmission block size carrying the random access response message (or paging message) according to the received control channel, and then receive the random access response message (or paging message) according to the determined transmission 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, thereby increasing the resource overhead of the system, reducing the resource utilization of the network, and greatly increasing the detection complexity and power consumption overhead of the user equipment. Summary of the invention

[0007] The embodiment of the present invention provides 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 in detecting a channel.

[0008] In a first aspect, an embodiment of the present invention provides a method for transmitting information, including:

[0009] 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, indication information of a modulation and coding method for first information transmission, frequency hopping indication information for first information transmission, and coverage enhancement transmission indication information for first information transmission, where the first information includes: a random access response message and / or a paging message;

[0010] 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.

[0011] In combination with the first aspect, in a first possible implementation method of the first aspect, the first downlink control information also includes at least one of the following information: downlink control information format distinction indication information, authorization distinction indication information, resource allocation indication information within the narrowband used for the first information transmission, and transmission block size indication information for the first information transmission.

[0012] In combination with the first aspect or the first possible implementation of the first aspect, in the second possible implementation of the first aspect, the first downlink control information also includes at least one of the following information: system information update indication information, alarm indication information of the earthquake and typhoon warning system, and alarm indication information of the commercial mobile alarm service.

[0013] In combination with the first aspect or the first possible or second possible implementation of the first aspect, in a third possible implementation of the first aspect, the first downlink control information also includes: one or more random access preamble indication information corresponding to the random access response message.

[0014] In combination with the first aspect or the first possible or the second possible or the third possible implementation of the first aspect, in a fourth possible implementation of the first aspect, 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.

[0015] In a second aspect, an embodiment of the present invention provides a method for transmitting information, including:

[0016] Receiving first downlink control information sent by a base station;

[0017] At least one of the following information is acquired from the downlink control information: indication information of narrowband resources used for first information transmission, indication information of a modulation and coding method for first information transmission, frequency hopping indication information for first 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;

[0018] The first information is received according to the first downlink control information.

[0019] In combination with the second aspect, in a first possible implementation method of the second aspect, the first downlink control information also includes at least one of the following information: downlink control information format distinction indication information, downlink control information authorization distinction indication information, resource allocation indication information within the narrowband used for the first information transmission, and transmission block size indication information for the first information transmission.

[0020] In combination with the second aspect or the first possible implementation of the second aspect, in the second possible implementation of the second aspect, the first downlink control information also includes at least one of the following information: system information update indication information, alarm indication information of the earthquake and typhoon warning system, and alarm indication information of the commercial mobile alarm service.

[0021] In combination with the second aspect or the first possible or second possible implementation of the second aspect, in a third possible implementation of the second aspect, the first downlink control information also includes: one or more random access preamble identifier indication information corresponding to the random access response message.

[0022] In combination with the second aspect or the first possible or the second possible or the third possible implementation of the second aspect, in a fourth possible implementation of the second aspect, 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.

[0023] In a third aspect, an embodiment of the present invention further provides a base station, including:

[0024] an information determination module, configured to determine first downlink control information, wherein the first downlink control information includes at least one of the following information: indication information of narrowband resources used for first information transmission, indication information of modulation and coding base stations for first information transmission, frequency hopping indication information for first 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;

[0025] A sending module is used 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.

[0026] In combination with the third aspect, in a first possible implementation method of the third aspect, the first downlink control information also includes at least one of the following information: downlink control information format distinction indication information, authorization distinction indication information, resource allocation indication information within the narrowband used for the first information transmission, and transmission block size indication information for the first information transmission.

[0027] In combination with the third aspect or the first possible implementation of the third aspect, in the second possible implementation of the third aspect, the first downlink control information also includes at least one of the following information: system information update indication information, alarm indication information of the earthquake and typhoon warning system, and alarm indication information of the commercial mobile alarm service.

[0028] In combination with the third aspect or the first possible or second possible implementation of the third aspect, in the third possible implementation of the third aspect, the first downlink control information also includes: one or more random access preamble indication information corresponding to the random access response message.

[0029] In combination with the third aspect or the first possible or the second possible or the third possible implementation of the third aspect, in a fourth possible implementation of the third aspect, 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.

[0030] In a fourth aspect, an embodiment of the present invention further provides a user equipment, including:

[0031] A receiving module, used for receiving first downlink control information sent by a base station;

[0032] 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 first information transmission, frequency hopping indication information of first information transmission, and coverage enhancement transmission indication information of first information transmission, wherein the first information includes: a random access response message and / or a paging message;

[0033] The receiving module is further configured to receive the first information according to the first downlink control information.

[0034] In combination with the fourth aspect, in a first possible implementation method of the fourth aspect, the first downlink control information also includes at least one of the following information: downlink control information format distinction indication information, downlink control information authorization distinction indication information, resource allocation indication information within the narrowband used for the first information transmission, and transmission block size indication information for the first information transmission.

[0035] In combination with the fourth aspect or the first possible implementation of the fourth aspect, in the second possible implementation of the fourth aspect, the first downlink control information also includes at least one of the following information: system information update indication information, alarm indication information of the earthquake and typhoon warning system, and alarm indication information of the commercial mobile alarm service.

[0036] In combination with the fourth aspect or the first possible or second possible implementation of the fourth aspect, in a third possible implementation of the fourth aspect, the first downlink control information also includes: one or more random access preamble identifier indication information corresponding to the random access response message.

[0037] In combination with the fourth aspect or the first possible or the second possible or the third possible implementation of the fourth aspect, in the fourth possible implementation of the fourth aspect, 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.

[0038] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0039] In an embodiment of the present invention, first, the base station determines the first downlink control information, wherein the first downlink control information includes at least one of the following information: indication information of narrowband resources used for first information transmission, indication information of modulation and coding method for first 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 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 an 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 aforementioned indication information, and the aforementioned indication information has less bit overhead, so the first downlink control information has a more streamlined structure, so that the first downlink control information can be transmitted using fewer resources, and the resource utilization efficiency of transmitting the first downlink control information can be improved. The user equipment detects the streamlined first downlink control information, so that the power consumption overhead of the user equipment detecting the control channel can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A system architecture diagram of the information transmission method of the present invention applied in a communication system;

[0041] Figure 2 A schematic block diagram of a process flow of a method for transmitting information provided by an embodiment of the present invention;

[0042] Figure 3 A schematic block diagram of a process flow of another information transmission method provided by an embodiment of the present invention;

[0043] Figure 4 A schematic diagram of the structure of a base station provided in an embodiment of the present invention;

[0044] Figure 5 A schematic diagram of the structure of a user equipment provided by an embodiment of the present invention;

[0045] Figure 6 A schematic diagram of the structure of another base station provided in an embodiment of the present invention;

[0046] Figure 7 A schematic diagram of the composition structure of another user equipment provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The embodiment of the present invention provides 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 in detecting the control channel and the data channel.

[0048] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0049] The terms "first", "second", etc. in the specification 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 interchangeable where appropriate, which is merely a way of distinguishing objects of the same attributes when describing the embodiments of the present invention. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, so that a process, method, system, product, or device that includes a series of units is not necessarily limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0050] First, 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 LTE system or 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) message and paging message.

[0051] In the embodiment of the present invention, transmission can be sending or receiving. If the transmission of a device on one side is sending, the transmission of the communication device on the other side corresponding to the device on the side is receiving; and vice versa. The coverage enhancement in the embodiment of the present invention can be one or more of repeated transmission, spread spectrum transmission, retransmission, bundled time interval transmission, narrowband (such as subcarrier scheduling) transmission, ultra-narrowband (such as bandwidth of tens of hertz to tens of kilohertz) transmission, increased power spectrum density transmission, relaxed demand transmission, and continuous transmission attempts. Please refer to Figure 1 As shown, it is a system architecture diagram of the information transmission method of the present invention applied in a communication system, such as Figure 1 As shown, a base station (English name Base station) and user equipment (UE, User Equipment) 1-UE6 form a communication system, in which the base station sends one or more of system information, RAR messages and paging messages to one or more UEs in UE1-UE6, the base station is a sending end device in the information transmission method of the present invention, and UE1-UE6 is a receiving end device in the information transmission method of the present invention. In addition, UE4-UE6 also form a communication system, in which UE5 can be implemented as a base station function, and UE5 can send one or more of system information, RAR messages and paging messages to one or more UEs in UE4 and UE6.

[0052] The following are detailed descriptions of each.

[0053] An embodiment of the information transmission method of the present invention can be applied to the transmission of information by a base station, see Figure 2 As shown, the method for transmitting the information may include the following steps:

[0054] 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 first information transmission, indication information of modulation and coding method for first information transmission, indication information of frequency hopping for first information transmission, and indication information of coverage enhancement transmission for first information transmission. The first information includes: a random access response message and / or a paging message.

[0055] In an embodiment of the present invention, when a base station needs to send control information to a user equipment through a control channel, the base station generates first downlink control information, which is information transmitted by the control channel. In order to improve the transmission efficiency of the downlink control information and simplify the detection overhead of the UE on the channel, the base station needs to generate a short first downlink control information. In an embodiment of the present invention, the short first downlink control information generated by the base station includes at least one of the following four types of information: 1) indication information of the narrowband resources used for the first information transmission, 2) indication information of the modulation and coding method of the first information transmission, 3) frequency hopping indication information of the first information transmission, and 4) coverage enhancement transmission indication information of the first information transmission. Among them, 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 four types of information described above, or any two types of information, or any three types of information, or all four types of information, wherein which type of information or which types of information should be included in the first downlink control information can be determined by the application scenario.

[0056] In some embodiments of the present invention, in addition to including at least one of the indication information shown in 1) to 4) above, the first downlink control information provided by the embodiment of the present invention also includes at least one of the following four types of information: 5) downlink control information format differentiation indication information, 6) authorization differentiation indication information, 7) resource allocation indication information within the narrowband used for first information transmission, 8) transmission block size indication information for first information transmission. It should be noted that the first downlink control information may include any one of the four types of information described above, or any two, or any three, or all four types of information. Specifically, which type of information or types of information should be included in the first downlink control information may be determined by the application scenario.

[0057] In some embodiments of the present invention, in addition to including at least one of the indication information shown in 1) to 4) above, or in addition to including at least one of the indication information shown in 1) to 8) above, the first downlink control information provided by the embodiment of the present invention also includes at least one of the following three types of information: 9) system information update indication information, 10) alarm indication information of the earthquake and typhoon warning system, 11) alarm indication information of the commercial mobile warning service. It should be noted that the first downlink control information may include any one of the three types of information described above, or any two of them, or all three types of information. Specifically, which information or which types of information should be included in the first downlink control information may be determined by the application scenario.

[0058] 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 the random access response message, the first downlink control information also needs to include one or more random access preamble identifiers, and the one or more random access preamble identifiers correspond to the random access response message.

[0059] It should be noted that, in the embodiment of the present invention, the first downlink control information may include one or more indication information described above. For specific implementations of these indication information, please refer to the description of the first downlink control information in subsequent embodiments.

[0060] 202. Send first downlink control information to the UE, and send first information to the UE according to the first downlink control information.

[0061] In an embodiment of the present invention, after the base station generates the simplified first downlink control information as described above, the first downlink control information is sent by the base station to the UE. By receiving the first downlink control information, the UE can obtain the scheduling indication of the first downlink control information for 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 indication of the first downlink control information for the first information. The first information can be a random access response message or a paging message.

[0062] 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 complexity of the UE blind detection control channel, the load size of the first downlink control information is the same as the load size of the second downlink control information. The load size is the number of bits, or the bit length. 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 the embodiments of the present invention, the design method of the second downlink control information can be the same as or similar to the design method of the first downlink control information.

[0063] Through the description of the present invention in the above embodiments, it can be known that first, the base station determines the first downlink control information, wherein the first downlink control information includes at least one of the following information: indication information of the narrowband resources used for the first information transmission, indication information of the modulation and coding method for the first information transmission, frequency hopping indication information for the first 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. 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 the 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 aforementioned indication information. Therefore, the first downlink control information has a more streamlined structure, so that the first downlink control information can be transmitted using fewer resources, thereby improving the resource utilization efficiency of transmitting the first downlink control information. The user equipment only needs to detect the streamlined first downlink control information, which can reduce the power consumption overhead of the user equipment detecting the channel.

[0064] In the above embodiment, 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. Figure 3 As shown, a method for transmitting information provided by another embodiment of the present invention may include the following steps:

[0065] 301. Receive first downlink control information sent by a base station.

[0066] In the embodiment of the present invention, after the base station generates the simplified first downlink control information as described above, the base station sends the first downlink control information to the UE. The UE receives the first downlink control information sent by the base station and then triggers the execution of step 302.

[0067] 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 for first information transmission, indication information of frequency hopping for first information transmission, and indication information of coverage enhancement transmission for first information transmission. The first information includes: a random access response message and / or a paging message.

[0068] In an embodiment of the present invention, a UE receives first downlink control information sent by a base station, and the first downlink control information received by the UE is the simplified first downlink control information of the base station. The content included in the first downlink control information is reduced compared with the prior art, so the resource overhead of the UE detecting 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 the narrowband resources used for the first information transmission, 2) indication information of the modulation and coding method of the first information transmission, 3) frequency hopping indication information of the first information transmission, and 4) coverage enhancement transmission indication information of the first information transmission. Among them, 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 four types of information described above, or any two types of information, or any three types of information, or all four types of information, wherein which type of information or which types of information should be included in the first downlink control information can be determined by the application scenario.

[0069] In some embodiments of the present invention, in addition to including at least one of the indication information shown in 1) to 4) above, the first downlink control information provided by the embodiment of the present invention also includes at least one of the following four types of information: 5) downlink control information format differentiation indication information, 6) authorization differentiation indication information, 7) resource allocation indication information within the narrowband used for first information transmission, 8) transmission block size indication information for first information transmission. It should be noted that the first downlink control information may include any one of the four types of information described above, or any two, or any three, or all four types of information. Specifically, which type of information or types of information should be included in the first downlink control information may be determined by the application scenario.

[0070] In some embodiments of the present invention, in addition to including at least one of the indication information shown in 1) to 4) above, or in addition to including at least one of the indication information shown in 1) to 8) above, the first downlink control information provided by the embodiment of the present invention also includes at least one of the following three types of information: 9) system information update indication information, 10) alarm indication information of the earthquake and typhoon warning system, and 11) alarm indication information of the commercial mobile warning service. It should be noted that the first downlink control information may include any one of the three types of information described above, or any two of them, or all three types of information, wherein which type of information or types of information to be included in the first downlink control information may be determined by the application scenario.

[0071] 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 the random access response message, the first downlink control information also needs to include one or more random access preamble identifiers, and the one or more random access preamble identifiers correspond to the random access response message.

[0072] It should be noted that, in the embodiment of the present invention, the first downlink control information may include one or more indication information described above. For specific implementations of these indication information, please refer to the description of the first downlink control information in subsequent embodiments.

[0073] 303. Receive first information according to the first downlink control information.

[0074] In the embodiment of the present invention, the UE can obtain the scheduling indication of the first downlink control information for the first 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 can receive the first information according to the scheduling indication of the first downlink control information. The first information can be a random access response message or a paging message.

[0075] In some embodiments of the present invention, the base station can carry the first information in the second downlink control information for transmission, and the UE can obtain the first information by detecting the second downlink control information. In order to reduce the complexity of the UE blind detection control channel, the load size of the first downlink control information is the same as the load size of the second downlink control information.

[0076] Through the description of the present invention in the above embodiments, it can be known that first, 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: indication information of the narrowband resources used for the first information transmission, indication information of the modulation and coding method of the first information transmission, 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, and then the UE receives the first information sent by the base station according to the first downlink control information. In the 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 aforementioned indication information. Therefore, the first downlink control information has a more streamlined structure, so that the first downlink control information can be transmitted using fewer resources, and the resource utilization efficiency of transmitting the first downlink control information is improved. The user equipment only needs to detect the streamlined first downlink control information, which can reduce the power consumption overhead of the user equipment detecting the channel.

[0077] To better understand and implement the above solutions in the embodiments of the present invention, the following examples are given for specific description using corresponding application scenarios.

[0078] Taking the processing of 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 the UE sends the random access preamble, it then 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 name in English: Random Access Preamble IDentitfier, English abbreviation: RAPID), for example, 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 RAPID in the random access response is the random access preamble sent by the UE, the UE believes that the random access response is the response of the random access preamble sent by the base station. In the LTE system, the random access response message from the base station to the UE is carried by PDSCH. The UE needs to receive the control channel first, obtain the transmission 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 transmission block size.

[0079] Taking the processing of paging messages as an example, in the existing LTE system, UEs in idle state need to monitor paging messages to determine whether the network side or the base station has paged the UE. UEs in connected state need to monitor paging messages to determine whether system information has been updated. The paging message sent by the base station to the UE is carried by the data channel, and the data channel is scheduled by the control channel. Therefore, when the UE monitors the paging message, it needs to first detect the control channel that schedules the paging message. Only after the control channel is successfully detected, the data channel carrying the paging message is received according to the instruction of the control channel.

[0080] For an idle UE, once the UE successfully detects the data channel carrying the paging message, the UE needs to match its own paging UE (full name in English: Identity, abbreviated in English: ID) with the paging UE ID carried in the paging message. If the match is successful, the UE believes that the network side or the base station has paged the UE. Otherwise, the UE believes 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 a system information modification.

[0081] A paging message may contain one or more paging UE IDs. Therefore, a paging message can initiate paging for 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 it can determine whether the paging message has paged the UE or whether the paging message indicates that the system message has been updated. For the UE, it may successfully detect the control channel and the paging message scheduled by the control channel, but find that the paging message did not page the UE or the paging message did not indicate a system information update. In this way, the UE consumes a lot of power in vain. Especially for low-cost or low-complexity UEs, the power consumption issue is even more critical.

[0082] In the random access process and paging process implemented as above, the information transmission method provided by the embodiment of the present invention can be executed. The base station simplifies the design of the first downlink control information that schedules the first information. The following example is used to illustrate. The 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 scheduled by the first downlink control information. The embodiment of the present invention mainly solves what the first downlink control information specifically contains when the first downlink control information schedules the first information.

[0083] In some embodiments of the present invention, the first downlink control information may include: indication information of the narrowband resources used for the first information transmission. Taking into account coverage enhancement or support for low-complexity or low-cost UEs, some narrowband resources may be allocated in the system for coverage enhancement transmission or to serve low-complexity (or low-cost) UEs. Narrowband resources or narrowband is a specific frequency resource, and narrowband resources can be composed of one or more resource blocks, or one or more subcarriers. Among them, low-complexity (or low-cost) UEs can only receive and / or send information on one narrowband at the same time. Therefore, the first information can only be transmitted on one narrowband. The first downlink control information may include an indication of the narrowband resource where the first information is transmitted. For example, the number of bits (English: bit) required to indicate the narrowband resource is: log2(floor(NDLRB / 6) or floor(log2(NDLRB / 6)), or ceil(log2(NDLRB / 6)). The formula uses 6 physical resource blocks (English full name: PhysicalResource For example, a narrowband is composed of two PRBs (PRB, English abbreviation: PRB). If the narrowband size is n, the number of bits required for this field can be: log2(floor(NDLRB / n)) or floor(log2(NDLRB / n)), or ceil(log2(NDLRB / n)). NDLRB is the downlink bandwidth in units of PRB. For example, a bandwidth of 1.4MHz has 6 PRBs. A bandwidth of 20MHz has 100 PRBs, so it can be divided into 16 narrowbands, which only requires 4 bits to indicate. The floor function indicates rounding down, and the ceil function indicates rounding up. Or the number of bits required to indicate the narrowband resource is: floor(log2(M)) or ceil(log2(M)), where M is the number of narrowbands configured by the base station.

[0084] In some embodiments of the present invention, the first downlink control information may include: resource allocation indication information within the narrowband used for the first information transmission. Taking the narrowband including 6 PRBs as an example, the resource allocation within the narrowband indicates the position of the 6PRB narrowband, that is, the resource allocation within the narrowband specifically indicates which specific PRBs of the 6 PRBs in the narrowband are used for random access response transmission. The bits required for the resource allocation indication information within the narrowband are exemplified as follows: If the first information transmission occupies all the PRBs of the narrowband, the field can be omitted, for example, 6 bits can be used to indicate 6 PRBs in a bitmap indication manner. In order to reduce the number of bits indicated, the number of PRBs occupied by the first information transmission and the possible PRB positions can 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 limited to occupy only 2 PRBs, 4 PRBs, and 6 PRBs. As shown in Table 1 below, a method of indicating the narrowband resources used for transmission using 3 bits is illustrated. It can be understood that the following Table 1 is only an example, and the correspondence between the narrowband resource indication bit state and the narrowband resource indication can also be changed.

[0085]

[0086] As shown in the following Table 2, a method of indicating the narrowband resources used for transmission using 2 bits is illustrated.

[0087]

[0088] It should be noted that the correspondence between the narrowband resource indication bit state and the narrowband resource indication in Table 1 and Table 2 in the embodiment of the present invention is only exemplary, and in fact, the correspondence between the narrowband resource indication bit state and the narrowband resource indication can be changed. As long as the resource allocation of 2 RBs, 4 RBs, and 6 RBs in the narrowband is indicated by bits for control channel transmission, or the resource allocation of 4 RBs and 6 RBs in the narrowband is indicated by bits for control channel transmission, it is not limited to the above table.

[0089] 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 for the field may be determined according to the number of modulation and coding methods supported. For example, if a fixed modulation and coding method is supported, or the modulation and coding method is implicitly determined according to other information, the field may not be included. For example, 2-4 bits may be used to indicate the modulation and coding method.

[0090] In some embodiments of the present invention, the first downlink control information may include: frequency hopping indication information for first information transmission. Used to indicate frequency hopping configuration for first information transmission. If the transmitted first information is always frequency hopping, or the transmitted first information is always frequency non-hopping, or frequency hopping is performed according to a pre-defined or pre-configured manner, this field may not be included. The frequency hopping configuration may be indicated by 0-2 bits.

[0091] In some embodiments of the present invention, the first downlink control information may include: authorization distinction indication information, which is used to distinguish between uplink authorization and downlink authorization. If the UE also detects whether the downlink control information is used for uplink scheduling in the search space of the control channel that schedules the first information transmission, 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 1 bit is required to indicate the uplink authorization and the downlink authorization. If the control channel in the search space of the control channel that schedules the first information transmission of the UE is not used for uplink scheduling, then this field is not needed to distinguish between uplink authorization and downlink authorization. Considering that the narrowband has only 6 PRBs, and the control channel that schedules the first information transmission needs to occupy more resources or guarantee performance through repetition, it can be specified that the uplink authorization is not detected in the search space of the control channel that schedules the first information transmission. In this way, this field can be excluded, thereby saving the load size of the first downlink control information.

[0092] In some embodiments of the present invention, the first downlink control information may include: system information update indication information (English name systemInfoModification). For example, one bit may be used in the first downlink control information to indicate the system information update. For example, if the first downlink control information indicates systemInfoModification, the UE believes that the system information may have been updated. Of course, it is also possible to indicate in the first downlink control information which specific system information has been updated. For example, it may be indicated in a bitmap (English name bitmap) manner or multiple bits may be used to jointly indicate which system information has been updated.

[0093] In some embodiments of the present invention, the first downlink control information may include: warning indication information of an earthquake and typhoon warning system (full name in English: Earthquake and Tsunami Warning System, English abbreviation: ETWS). For example, one bit may be used in the first downlink control information to indicate ETWS.

[0094] In some embodiments of the present invention, the first downlink control information may include: alert indication information of a Commercial Mobile Alert Service (CMAS). For example, CMAS may be indicated by one bit in the downlink control information.

[0095] In some embodiments of the present invention, the first downlink control information may include: information indicating the transport block size of the first information transmission. If the transport block size of the first information transmission is determined according to other already indicated parameters, then no field is required in the first downlink control information to indicate the transport block size. Otherwise, the first downlink control information needs to indicate the transport block size, for example, using 2 bits to indicate the transport block size.

[0096] 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 bundled transmission size information. If the coverage enhancement transmission indication information of the first information transmission is determined according to the repetition level (or number of repetitions) 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, 1-3 bits may be used to indicate the coverage enhancement 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 the high-level signaling or the number of repetitions predetermined. 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, replacing the above number of repetitions with the bundled transmission size is also the content of the present invention.

[0097] In some embodiments of the present invention, the first downlink control information may include: downlink control information format differentiation indication information, which needs to differentiate whether the downlink control information is control information for scheduling the first information or whether the downlink control information carries the first information. The differentiation method includes but is not limited to: a display field indication in the first downlink control information, such as using 1 bit for differentiation, or using 2 bits for a joint indication of format differentiation and authorization differentiation.

[0098] In some embodiments of the present invention, different control channel scrambling codes may be used to distinguish whether the downlink control information is the control information for scheduling the first information or the control information for carrying the first information. For example, for the downlink control information carrying the first information, a redesigned radio network temporary identifier (full name in English: Radio Network Temporary Identity, English abbreviation: RNTI) or RNTI set is used, and for the downlink control information scheduling the first information, an existing RNTI is used.

[0099] Or the content or function of the downlink control information is implicitly determined according to the coverage enhancement level or channel quality. For example, the downlink control information corresponding to the coverage enhancement level Y carries (i.e., 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 for the coverage enhancement level X is less than the number of repetitions required for the coverage enhancement level Y. For another example, the downlink control information corresponding to the coverage enhancement carries (i.e., includes) the first information, and the downlink control information corresponding to the non-coverage enhancement schedules the first information.

[0100] In some embodiments of the present invention, the first downlink control information may include: random access preamble indication information, and the indication information of the random access preamble may be a simplified random access preamble identifier (full name in English: Random Access Preamble IDentitfier, abbreviated in English: RAPID). RAPID is used to identify the random access preamble randomly selected by the UE during the random access process. The existing LTE protocol supports 64 random access preambles on a PRACH resource, so 6 bits are required to indicate RAPID. In the coverage enhancement scenario, there is a one-to-one mapping relationship between the coverage enhancement level (such as the coverage enhancement level is the repetition level or the number of repetitions) and the random access resource. If the above correspondence is based on the one-to-one correspondence between the preamble group and the coverage enhancement level, the number of bits indicating RAPID may be reduced. For example, there are a total of 64 preambles, and a total of three coverage enhancement levels are supported. If the number of preambles of the three levels is approximately evenly divided, one level can have 21 or 22 preambles, then only 5 bits are needed to indicate the preamble. Furthermore, if the number of preambles allocated to a certain level is very small, the bits required to indicate the preamble may be even fewer. If the number of preambles allocated to a certain level is num_preamble, then the number of bits required to indicate RAPID corresponding to the PRACH group can be: The brackets in the formula indicate rounding upwards.

[0101] In addition, the base station may also implicitly indicate the received random access preamble, and the random access response information does not use or uses very few bits to indicate RAPID. For example, the wireless network temporary identifier of the scrambled 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 may 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, each of which corresponds to a random access preamble, the wireless network temporary identifier of the scrambled random access response may indicate the random access preamble identifier. For another example, assuming that there are 32 RNTIs, each of which corresponds to two random access preambles, the random access response information may further indicate one of the two random access preambles with one bit. The RNTI associated with the random access preamble may be pre-specified or configured by signaling. The association relationship between the RNTI and the random access preamble may be pre-specified or configured by signaling. For example, a RNTI set or range is predefined, and each RNTI in the RNTI set or range is associated with a determined random access preamble. For another example, a functional relationship between the RNTI and the random access preamble index can be predefined. 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 (within one or more wireless 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 pre-fixed constants. For example, N is the index number of the time resource, and M is the product of the index number of the PRACH frequency resource and the index number of the PRACH time resource.

[0102] If the time resource is in units of subframes, a radio frame can have at most 10 subframes to send preambles, that is, N = 10. If the PRACH time resource is in units of X subframes, a radio frame can have at most ceil (10 / X) time resources to send preambles, where ceil is rounded up, that is, N = ceil (10 / X). If the PRACH time resource is a resource within Y radio frames, and the PRACH time resource is in units of X subframes, then Y radio frames can have at most ceil (Y*10 / X) time resources to send preambles, 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 random access opportunities in the same time will be much less. For example, for a subframe of 10ms, according to the original protocol, there can be at most random access resources in each subframe, that is, there are 10 random access opportunities; in the coverage enhancement scenario, even if the number of repetitions is 2, there are at most 5 access opportunities. This can reduce the number of random access opportunities, that is, the number of RNTIs can be reduced.

[0103] The index of the PRACH frequency resource and the number of indexes of the PRACH frequency resource can be independently numbered for each coverage enhancement level. For example, coverage enhancement level 1 has 2 PRACH frequency resources with indexes {0, 1}, and the number of indexes of the PRACH frequency resources is 2; coverage enhancement level 2 has 3 PRACH frequency resources with indexes {0, 1, 2}, and the number of indexes of the PRACH frequency resources is 3. The index of the PRACH frequency resource and the number of indexes of the PRACH frequency resource can be jointly numbered for multiple coverage enhancement levels. For example, coverage enhancement level 1 has 2 PRACH frequency resources with indexes {0, 1}, and coverage enhancement level 2 has 3 PRACH frequency resources with indexes {2, 3, 4}, and the number of indexes of the PRACH frequency resources is 5. For another example, the number of indexes of the PRACH frequency resources can be independently determined by the frequency division duplex system and the time division duplex system, or determined according to the maximum number of indexes of the 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 a frequency division duplex system and at most F2 PRACH frequency resources in a time division duplex system, and the number of indexes of the PRACH frequency resources is equal to Max(F1, F2), where Max is a maximum value function.

[0104] In some embodiments of the present invention, the indication information of the random access preamble is used to indicate whether the base station has detected 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 corresponds to indicating 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 has detected the random access preamble according to the bitmap indication method, wherein each bit corresponds to indicating a random access preamble.

[0105] It should be noted that, usually only when the first downlink control information is a scheduled paging message, the first downlink control information may include one or more indications of system information update, earthquake typhoon warning system indication, and commercial mobile warning service indication. 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 contained 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 transmission (or paging message transmission) and the second downlink control information for carrying random access response transmission (or paging message transmission) have the same size, it is necessary to expand the bits contained in the first downlink control information for scheduling random access response transmission (or paging message transmission) so that the number of bits contained in the first downlink control information for scheduling random access response transmission (or paging message transmission) is the same as the number of bits contained in the second downlink control information for carrying random access response transmission (or paging message transmission). The bits contained in the first downlink control information for scheduling random access response transmission (or paging message transmission) may be expanded to form the final first downlink control information. The bit expansion methods include one or more of the following:

[0106] Repeat all or part of the fields of the first downlink control information, wherein the repetition may be an integer multiple or a non-integer multiple. In addition, zeros may be padded or padding bits may be added to the first downlink control information. Alternatively, the (entire or partial) content of each of the multiple first downlink control information is cascaded together to form the final first downlink control information, wherein each first downlink control information is associated with a scheduling message. Different first downlink control information in the multiple first downlink control information may be scheduling messages for different UEs or for the same UE. The bits in the first downlink control information are encoded, and the encoded bits are used as the original bits contained in the final downlink control information. For example, the above encoding is Reed-Solomon (full name in English: Reed-Muller, English abbreviation: RM) encoding or Reed-Muller (full name in English: Reed-Solomon, English abbreviation: RS) encoding.

[0107] Of course, the field type included in the first downlink control information has nothing to do with the type of information 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 a 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 a paging message. It should also be noted that it is possible to determine whether the first downlink control information schedules the first information in an implicit manner. For example, for coverage enhancement (such as 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 for coverage enhancement level X is less than the number of repetitions required for coverage enhancement level Y.

[0108] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity, they are all described 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, because according to the present invention, certain steps can be performed in other sequences 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.

[0109] In order to better implement the above-mentioned solution of the embodiment of the present invention, relevant devices for implementing the above-mentioned solution are also provided below.

[0110] See also Figure 4 As shown, a base station 400 provided in an embodiment of the present invention may include: an information determination module 401 and a sending module 402, wherein:

[0111] The information determination module 401 is used to determine the first downlink control information, wherein the first downlink control information includes at least one of the following information: indication information of the narrowband resources used for the first information transmission, indication information of the modulation coding base station for the first information transmission, indication information of the frequency hopping for the first information transmission, and indication information of the coverage enhancement transmission for the first information transmission. The first information includes: a random access response message and / or a paging message;

[0112] The sending module 402 is used 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.

[0113] In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: downlink control information format differentiation indication information, authorization differentiation indication information, resource allocation indication information within the narrowband used for the first information transmission, and transmission block size indication information for the first information transmission.

[0114] 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, alarm indication information of an earthquake and typhoon warning system, and alarm indication information of a commercial mobile alarm service.

[0115] 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.

[0116] 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.

[0117] Through the description of the present invention in the above embodiments, it can be known that first, the base station determines the first downlink control information, wherein the first downlink control information includes at least one of the following information: indication information of the narrowband resources used for the first information transmission, indication information of the modulation and coding method of the first information transmission, 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. 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 the 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 aforementioned indication information. Therefore, the first downlink control information has a more streamlined structure, so that the first downlink control information can be transmitted using fewer resources, thereby improving the resource utilization efficiency of transmitting the first downlink control information. The user equipment only needs to detect the streamlined first downlink control information, which can reduce the power consumption overhead of the user equipment detecting the channel.

[0118] See also Figure 5 As shown, a user equipment 500 provided in an embodiment of the present invention may include: a receiving module 501 and an acquiring module 502, wherein:

[0119] The receiving module 501 is used to receive first downlink control information sent by the base station;

[0120] The acquisition module 502 is 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 coding user equipment indication information for first information transmission, frequency hopping indication information for first information transmission, and coverage enhancement transmission indication information for first information transmission. The first information includes: random access response message and / or paging message;

[0121] The receiving module 501 is further configured to receive the first information according to the first downlink control information.

[0122] In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: downlink control information format differentiation indication information, downlink control information authorization differentiation indication information, resource allocation indication information within the narrowband used for the first information transmission, and transmission block size indication information for the first information transmission.

[0123] 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, alarm indication information of an earthquake and typhoon warning system, and alarm indication information of a commercial mobile alarm service.

[0124] 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.

[0125] 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.

[0126] Through the description of the present invention in the above embodiments, it can be known that first, 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: indication information of the narrowband resources used for the first information transmission, indication information of the modulation and coding method of the first information transmission, 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. The UE receives the first information sent by the base station according to the first downlink control information. In an 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 aforementioned indication information. Therefore, the first downlink control information has a more streamlined structure, so that the first downlink control information can be transmitted using fewer resources, thereby improving the resource utilization efficiency of transmitting the first downlink control information. The user equipment only needs to detect the streamlined first downlink control information, which can reduce the power consumption overhead of the user equipment detecting the channel.

[0127] It should be noted that the information interaction, execution process, etc. between the modules / units of the above-mentioned device are based on the same concept as the embodiment of the method of the present invention, and the technical effects they bring are the same as those of the embodiment of the method of the present invention. For specific contents, please refer to the description in the method embodiment of the present invention shown above, and no further details will be given here.

[0128] An embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores a program, and the program executes part or all of the steps recorded in the above method embodiment.

[0129] Next, another base station provided by an embodiment of the present invention is introduced. Figure 6 As shown, the base station 600 includes:

[0130] An input device 601, an output device 602, a processor 603 and a memory 604 (wherein the number of the processor 603 in the base station 600 can be one or more, Figure 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 via a bus or other means, wherein: Figure 6 The example of connecting through bus is taken in the following.

[0131] 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:

[0132] 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, indication information of a modulation and coding method for first information transmission, frequency hopping indication information for first information transmission, and coverage enhancement transmission indication information for first information transmission, where the first information includes: a random access response message and / or a paging message;

[0133] 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.

[0134] In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: downlink control information format differentiation indication information, authorization differentiation indication information, resource allocation indication information within the narrowband used for the first information transmission, and transmission block size indication information for the first information transmission.

[0135] 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, alarm indication information of an earthquake and typhoon warning system, and alarm indication information of a commercial mobile alarm service.

[0136] 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.

[0137] 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.

[0138] Through the description of the present invention in the above embodiments, it can be known that first, the base station determines the first downlink control information, wherein the first downlink control information includes at least one of the following information: indication information of the narrowband resources used for the first information transmission, indication information of the modulation and coding method of the first information transmission, 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. 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 the 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 aforementioned indication information. Therefore, the first downlink control information has a more streamlined structure, so that the first downlink control information can be transmitted using fewer resources, thereby improving the resource utilization efficiency of transmitting the first downlink control information. The user equipment only needs to detect the streamlined first downlink control information, which can reduce the power consumption overhead of the user equipment detecting the channel.

[0139] Next, another user equipment provided by an embodiment of the present invention is introduced. Figure 7 As shown, the user equipment 700 includes:

[0140] An input device 701, an output device 702, a processor 703 and a memory 704 (wherein the number of the processor 703 in the user equipment 700 may be one or more, Figure 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 via a bus or other means, wherein: Figure 7 The example of connecting through bus is taken in the following.

[0141] The processor 703 is configured to execute the information transmission method implemented by the user equipment side. Specifically, the processor 703 is configured to execute the following steps:

[0142] Receiving first downlink control information sent by a base station;

[0143] At least one of the following information is acquired from the downlink control information: indication information of narrowband resources used for first information transmission, indication information of a modulation and coding method for first information transmission, frequency hopping indication information for first 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;

[0144] The first information is received according to the first downlink control information.

[0145] In some embodiments of the present invention, the first downlink control information further includes at least one of the following information: downlink control information format differentiation indication information, downlink control information authorization differentiation indication information, resource allocation indication information within the narrowband used for the first information transmission, and transmission block size indication information for the first information transmission.

[0146] 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, alarm indication information of an earthquake and typhoon warning system, and alarm indication information of a commercial mobile alarm service.

[0147] 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.

[0148] 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.

[0149] Through the description of the present invention in the above embodiments, it can be known that first, 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: indication information of the narrowband resources used for the first information transmission, indication information of the modulation and coding method of the first information transmission, 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. The UE receives the first information sent by the base station according to the first downlink control information. In an 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 aforementioned indication information. Therefore, the first downlink control information has a more streamlined structure, so that the first downlink control information can be transmitted using fewer resources, thereby improving the resource utilization efficiency of transmitting the first downlink control information. The user equipment only needs to detect the streamlined first downlink control information, which can reduce the power consumption overhead of the user equipment detecting the channel.

[0150] It should also be noted that the device embodiments described above are merely 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 physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device 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. A person of ordinary skill in the art may understand and implement it without creative work.

[0151] Through the description of the above implementation mode, the technicians in the relevant field can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, it can also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components, etc. In general, all functions completed by computer programs can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be various, such as analog circuits, digital circuits or special circuits. However, for the present invention, software program implementation is a better implementation mode in more cases. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer floppy disk, a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a disk or an optical disk, etc., including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0152] In summary, the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for transmitting information, characterized in that: include: Sending first downlink control information, where the first downlink control information includes indication information of narrowband resources used for first information transmission; The first information is a random access response message, the first downlink control information further includes resource allocation indication information within a narrowband used for transmission of the first information, the narrowband resource indication information indicates that the narrowband resource on which the first information is transmitted is a first narrowband resource, and the resource allocation indication information within the narrowband used for transmission of the first information indicates part of resources or all of resources within the first narrowband resource; Alternatively, the first information is a paging message, the indication information of the narrowband resource used for the first information transmission is used to indicate that the narrowband resource where the first information is transmitted is a first narrowband resource, the first narrowband resource includes at least one resource block, the first information transmission occupies all resource blocks of the first narrowband resource, and the first downlink control information does not include resource allocation indication information within the narrowband used for the first information transmission; The first information is sent.

2. The method according to claim 1, characterized in that The first downlink control information also includes at least one of the following information: downlink control information format differentiation indication information, authorization differentiation indication information, transmission block size indication information of the first information transmission, modulation and coding method indication information of the first information transmission, frequency hopping indication information of the first information transmission, and coverage enhancement transmission indication information of the first information transmission.

3. The method according to claim 1 or 2, characterized in that: The first downlink control information also includes at least one of the following information: system information update indication information, alarm indication information of an earthquake and typhoon warning system, and alarm indication information of a commercial mobile alarm service.

4. The method according to any one of claims 1 to 2, characterized in that The first downlink control information further includes: one or more random access preamble indication information corresponding to the random access response message.

5. The method according to any one of claims 1 to 2, characterized in that The first information is a random access response message, the first narrowband resource is 6 resource blocks, the resource allocation indication information within the narrowband used for transmitting the first information indicates that the second narrowband resource within the first narrowband resource is 4 resource blocks or 6 resource blocks, and the second narrowband resource is used to transmit the first information.

6. A method for transmitting information, characterized in that: include: receiving first downlink control information; the first downlink control information including indication information of narrowband resources used for first information transmission; The first information is a random access response message, the first downlink control information further includes resource allocation indication information within a narrowband used for transmission of the first information, the narrowband resource indication information indicates that the narrowband resource on which the first information is transmitted is a first narrowband resource, and the resource allocation indication information within the narrowband used for transmission of the first information indicates part of resources or all of resources within the first narrowband resource; Alternatively, the first information is a paging message, the indication information of the narrowband resource used for the first information transmission is used to indicate that the narrowband resource where the first information is transmitted is a first narrowband resource, the first narrowband resource includes at least one resource block, the first information transmission occupies all resource blocks of the first narrowband resource, and the first downlink control information does not include resource allocation indication information within the narrowband used for the first information transmission; The first information is received according to the first downlink control information.

7. The method according to claim 6, characterized in that The first downlink control information also includes at least one of the following information: downlink control information format differentiation indication information, authorization differentiation indication information, transmission block size indication information of the first information transmission, modulation and coding method indication information of the first information transmission, frequency hopping indication information of the first information transmission, and coverage enhancement transmission indication information of the first information transmission.

8. The method according to claim 6 or 7, characterized in that: The first downlink control information also includes at least one of the following information: system information update indication information, alarm indication information of an earthquake and typhoon warning system, and alarm indication information of a commercial mobile alarm service.

9. The method according to any one of claims 6 to 7, characterized in that The first downlink control information further includes: one or more random access preamble identifier indication information corresponding to the random access response message.

10. The method according to any one of claims 6 to 7, characterized in that The first information is a random access response message, the first narrowband resource is 6 resource blocks, the resource allocation indication information within the narrowband used for transmitting the first information indicates that the second narrowband resource within the first narrowband resource is 4 resource blocks or 6 resource blocks, and the second narrowband resource is used to transmit the first information.

11. A communication device, characterized in that: include: A sending module, configured to send first downlink control information, wherein the first downlink control information includes indication information of narrowband resources used for first information transmission; The first information is a random access response message, the first downlink control information further includes resource allocation indication information within a narrowband used for transmission of the first information, the narrowband resource indication information indicates that the narrowband resource on which the first information is transmitted is a first narrowband resource, and the resource allocation indication information within the narrowband used for transmission of the first information indicates part of resources or all of resources within the first narrowband resource; Alternatively, the first information is a paging message, the indication information of the narrowband resource used for the first information transmission is used to indicate that the narrowband resource where the first information is transmitted is a first narrowband resource, the first narrowband resource includes at least one resource block, the first information transmission occupies all resource blocks of the first narrowband resource, and the first downlink control information does not include resource allocation indication information within the narrowband used for the first information transmission; The sending module is used to send the first downlink control information, and send the first information according to the first downlink control information.

12. The communication device according to claim 11, characterized in that: The first downlink control information also includes at least one of the following information: downlink control information format differentiation indication information, authorization differentiation indication information, transmission block size indication information of the first information transmission, modulation and coding method indication information of the first information transmission, frequency hopping indication information of the first information transmission, and coverage enhancement transmission indication information of the first information transmission.

13. The communication device according to claim 11 or 12, characterized in that: The first downlink control information also includes at least one of the following information: system information update indication information, alarm indication information of an earthquake and typhoon warning system, and alarm indication information of a commercial mobile alarm service.

14. The communication device according to claim 11 or 12, characterized in that: The first downlink control information further includes: one or more random access preamble indication information corresponding to the random access response message.

15. The communication device according to claim 11 or 12, characterized in that: The first information is a random access response message, the first narrowband resource is 6 resource blocks, the resource allocation indication information within the narrowband used for transmitting the first information indicates that the second narrowband resource within the first narrowband resource is 4 resource blocks or 6 resource blocks, and the second narrowband resource is used to transmit the first information.

16. A communication device, characterized in that: include: A receiving module, configured to receive first downlink control information; the first downlink control information includes indication information of narrowband resources used for first information transmission; The first information is a random access response message, the first downlink control information further includes resource allocation indication information within a narrowband used for transmission of the first information, the narrowband resource indication information indicates that the narrowband resource on which the first information is transmitted is a first narrowband resource, and the resource allocation indication information within the narrowband used for transmission of the first information indicates part of resources or all of resources within the first narrowband resource; Alternatively, the first information is a paging message, the indication information of the narrowband resource used for the first information transmission is used to indicate that the narrowband resource where the first information is transmitted is a first narrowband resource, the first narrowband resource includes at least one resource block, the first information transmission occupies all resource blocks of the first narrowband resource, and the first downlink control information does not include resource allocation indication information within the narrowband used for the first information transmission; The receiving module is further configured to receive the first information according to the first downlink control information.

17. The communication device according to claim 16, characterized in that: The first downlink control information also includes at least one of the following information: downlink control information format differentiation indication information, authorization differentiation indication information, transmission block size indication information of the first information transmission, modulation and coding method indication information of the first information transmission, frequency hopping indication information of the first information transmission, and coverage enhancement transmission indication information of the first information transmission.

18. The communication device according to claim 16 or 17, characterized in that: The first downlink control information also includes at least one of the following information: system information update indication information, alarm indication information of an earthquake and typhoon warning system, and alarm indication information of a commercial mobile alarm service.

19. The communication device according to claim 16 or 17, characterized in that: The first downlink control information further includes: one or more random access preamble identifier indication information corresponding to the random access response message.

20. The communication device according to claim 16 or 17, characterized in that: The first information is a random access response message, the first narrowband resource is 6 resource blocks, the resource allocation indication information within the narrowband used for transmitting the first information indicates that the second narrowband resource within the first narrowband resource is 4 resource blocks or 6 resource blocks, and the second narrowband resource is used to transmit the first information.

21. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program, and when the program is run on a computer, the program executes the method according to any one of claims 1 to 10.

22. A communication device, characterized in that: include: Processor and memory; The memory is used to store one or more computer programs. When the communication device is running, the processor executes the one or more computer programs stored in the memory, so that the communication device performs the method according to any one of claims 1 to 10.

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