CN106664720B

CN106664720B - A kind of transmission method of accidental access response message and base station and user equipment

Info

Publication number: CN106664720B
Application number: CN201580036238.2A
Authority: CN
Inventors: 余政
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-04-10
Filing date: 2015-04-10
Publication date: 2019-10-22
Anticipated expiration: 2035-04-10
Also published as: WO2016161650A9; CN106664720A; WO2016161650A1

Abstract

A kind of transmission method of accidental access response message and base station and user equipment, the transmission method of one of accidental access response message, include: to send the first RAR message to user equipment, includes the instruction information about the second RAR message in first RAR message；Second RAR message is sent to the user equipment；Wherein, first RAR message and second RAR message are sent by the base station using different transmission blocks.

Description

Transmission method of random access response message, base station and user equipment

Technical Field

The embodiment of the invention relates to the field of communication, in particular to a transmission method of a random access response message, a base station and user equipment.

Background

In an existing communication system, a user equipment receives a control channel first, determines a Transport Block Size (TBS) carried by a data channel scheduled by the control channel according to control information in the received control channel, and starts to receive data after determining the Transport Block Size. For example, in a Long Term Evolution (LTE) system, a Control Channel may be a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), a data Channel may be a Physical Downlink Shared data Channel (PDSCH), and a user equipment determines a size of a transport block carried by the PDSCH from the PDCCH or the EPDCCH. Since there is a control channel indicating the TBS of the transport block before the data channel is received, the TBS of the transport block can take different values as needed.

In the conventional LTE system, in a random access scenario, a user equipment first sends a random access preamble and then receives a random access response message. The base station includes one or more Random Access Responses (RARs) in the Random Access Response message to the user equipment. The Random Access response includes a Random Access Preamble Identifier (RAPID).

After the user equipment receives the random access response, if the random access preamble identified by the RAPID in the random access response is the random access preamble sent by the UE, the user equipment considers that the random access response is the response of the base station to the random access preamble sent by the user equipment. In the LTE system, a random access response message that a base station is giving to a user equipment is carried through a PDSCH. As described above, the user equipment needs to receive the control channel first, obtain the TBS of the random access response message according to the indication in the received control channel, and then receive the random access response message according to the determined TBS.

It is possible for the user equipment to successfully receive the random access response message but find no matching random access response. That is, in the random access response message, none of the random access preambles identified by the RAPID corresponding to the random access response is the random access preamble sent by the user equipment. This wastes the power consumption of the user equipment. Especially for low cost or low complexity user equipment, wasted power consumption is of vital importance.

With coverage enhancement, the random access response message needs to be repeated many times to achieve reliable transmission. If the transmission of the random access response message is to be scheduled based on the control channel, the ue needs to successfully detect the control channel first, and then detect the random access response message according to the indication of the control channel. In order to enable the user equipment to successfully receive the random access response message, the control channel needs to be repeated for many times, and the random access response message also needs to be repeated for many times, so that the resource overhead of the system is greatly increased, the resource utilization rate of the network is reduced, and the detection complexity and the power consumption overhead of the user equipment are greatly increased.

Disclosure of Invention

Embodiments of the present invention provide a method for transmitting a random access response message, a base station, and a user equipment, which can complete transmission of the random access response message without using a control channel scheduling information transport block, occupy less network resources, and facilitate detection of the user equipment.

In a first aspect, an embodiment of the present invention provides a method for transmitting a random access response message on a base station, including:

sending a first RAR message to user equipment, wherein the first RAR message comprises indication information about a second RAR message;

sending the second RAR message to the user equipment;

wherein the first RAR message and the second RAR message are sent by the base station using different transport blocks.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the first RAR message is composed of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the indication information includes an identifier, where the identifier indicates at least one of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the format of the RAR message is specifically: a format of the first RAR message and/or a format of the second RAR message;

the format of the RAR is specifically: a RAR format in the first RAR message and/or a RAR format in the second RAR message.

With reference to the first aspect or the first possible or the second possible or the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the indication information includes one or more of the following: random access preamble related information, RAR message related information.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, before the sending the first RAR message, the method further includes:

determining one or more structures of the indication information according to a preset specification; or,

receiving signaling, and determining one or more structures of the indication information according to the received signaling; or,

determining one or more structures of the indication information according to the implicit indication.

With reference to the first aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, before the sending the first RAR message, the method further includes:

determining the size of a transmission block of the first RAR message according to a preset specification; and/or the presence of a gas in the gas,

determining the size of a transmission block of the first RAR message according to a signaling indication; and/or the presence of a gas in the gas,

and the size of the transmission block of the first RAR message is determined by self, and a signaling indicating the size of the transmission block of the first RAR message is sent to opposite-end equipment.

With reference to the first aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the second RAR message does not include a media access control MAC header of the RAR; or,

when the second RAR message includes the MAC header of the RAR, the RAR MAC header of the second RAR message does not include the random access preamble identification information.

With reference to the first aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible or the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the indication information includes a plurality of random access preamble identifications, and one or several random access preambles in the plurality of random access preambles correspond to one second RAR message.

In a second aspect, an embodiment of the present invention further provides a method for transmitting a random access response message on a user equipment, including:

acquiring indication information contained in the first RAR message;

and determining the first RAR message and/or the second RAR message according to the acquired indication information, wherein the first RAR message and the second RAR message are independently transmitted by using different transmission blocks.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the first RAR message is composed of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the indication information includes an identifier, where the identifier indicates one or more of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR.

With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect,

the format of the RAR message specifically includes: a format of the first RAR message and/or a format of the second RAR message;

With reference to the second aspect or the first possible implementation manner, the second possible implementation manner, or the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect,

the indication information comprises one or more of the following: random access preamble related information, RAR message related information.

With reference to the second aspect or the first possible or the second possible or the third possible or the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, before the obtaining the indication information included in the first RAR message, the method further includes:

With reference to the second aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, before the obtaining the indication information included in the first RAR message, the method further includes:

determining the size of a transmission block of the first RAR message according to a preset specification; or,

and receiving signaling, and determining the size of the transmission block of the first RAR message according to the received signaling.

With reference to the second aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner of the second aspect, the determining the first RAR message and/or the second RAR message according to the obtained indication information includes:

determining the size of a transmission block of the second RAR message according to the indication information in the first RAR message;

and receiving the second RAR message according to the determined transport block size of the second RAR message.

With reference to the second aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible or the seventh possible implementation manner of the second aspect, in an eighth possible implementation manner of the second aspect, the second RAR message does not include a media access control MAC header of the RAR; or,

when the second RAR message includes the MAC header of the RAR, the MAC header of the RAR of the second RAR message does not include the random access preamble identification information.

With reference to the second aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible or the seventh possible or the eighth possible implementation manner of the second aspect, in a ninth possible implementation manner of the second aspect, the determining the first RAR message and/or the second RAR message according to the acquired indication information includes:

determining a first RAR message corresponding to the preamble information according to the preamble information related to the sent random access preamble;

acquiring indication information contained in the first RAR message, wherein the indication information indicates information related to one or more second RAR messages;

and determining a second RAR message according to the indication information.

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

a first sending module, configured to send a first RAR message to a user equipment, where the first RAR message includes indication information about a second RAR message;

a second sending module, configured to send the second RAR message to the user equipment;

With reference to the third aspect, in a first possible implementation manner of the third aspect, the first RAR message is composed of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the indication information includes an identifier, where the identifier indicates at least one of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the format of the RAR message is specifically: a format of the first RAR message and/or a format of the second RAR message;

With reference to the third aspect or the first possible, the second possible, or the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the indication information includes one or more of the following: random access preamble related information, RAR message related information.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the base station further includes: a first determining module, configured to determine, according to a predetermined specification, one or more structures of the indication information before the first sending module sends the first RAR message; or receiving signaling, and determining one or more structures of the indication information according to the received signaling; alternatively, one or more structures of the indication information are determined from implicit indications.

With reference to the third aspect or the first possible, the second possible, the third possible, the fourth possible, or the fifth possible implementation manner of the third aspect, in a sixth possible implementation manner of the third aspect, the base station further includes: a second determining module, configured to determine, before the first sending module sends a first RAR message, a transport block size of the first RAR message according to a predetermined specification; and/or determining the size of a transmission block of the first RAR message according to a signaling indication; and/or determining the size of the transmission block of the first RAR message by self, and sending a signaling indicating the size of the transmission block of the first RAR message to opposite-end equipment.

With reference to the third aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible implementation manner of the third aspect, in a seventh possible implementation manner of the third aspect, the second RAR message does not include a media access control MAC header of the RAR; or,

With reference to the third aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible or the seventh possible implementation manner of the third aspect, in an eighth possible implementation manner of the third aspect, the indication information includes a plurality of random access preamble identifications, and one or several random access preambles in the plurality of random access preambles correspond to one second RAR message.

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

the acquisition module is used for acquiring the indication information contained in the first RAR message;

a determining module, configured to determine the first RAR message and/or the second RAR message according to the obtained indication information, where the first RAR message and the second RAR message use different transport blocks for independent transmission.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the first RAR message is composed of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the indication information includes an identifier, where the identifier indicates one or more of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR.

With reference to the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect,

With reference to the fourth aspect or the first possible implementation manner, the second possible implementation manner, or the third possible implementation manner of the fourth aspect,

With reference to the fourth aspect or the first possible or second possible or third possible or fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the determining module is further configured to determine one or more structures of the indication information according to a predetermined specification before the obtaining module obtains the indication information included in the first RAR message; or receiving signaling, and determining one or more structures of the indication information according to the received signaling; alternatively, one or more structures of the indication information are determined from implicit indications.

With reference to the fourth aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the determining module is further configured to determine, before the obtaining module obtains the indication information included in the first RAR message, a size of a transport block of the first RAR message according to a predetermined specification; or receiving signaling, and determining the transport block size of the first RAR message according to the received signaling.

With reference to the fourth aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible implementation manner of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the determining module is specifically configured to determine the transport block size of the second RAR message according to the indication information in the first RAR message; and receiving the second RAR message according to the determined transport block size of the second RAR message.

With reference to the fourth aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible or the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the second RAR message does not include a media access control MAC header of the RAR; or,

With reference to the fourth aspect or the first possible or the second possible or the third possible or the fourth possible or the fifth possible or the sixth possible or the seventh possible or the eighth possible implementation manner of the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the determining module is specifically configured to determine, according to preamble information related to the sent random access preamble, a first RAR message corresponding to the preamble information; acquiring indication information contained in the first RAR message, wherein the indication information indicates information related to one or more second RAR messages; and determining a second RAR message according to the indication information.

According to the technical scheme, the embodiment of the invention has the following advantages:

in this embodiment of the present invention, a first RAR message is first sent, where the first RAR message includes indication information, and if the indication information includes an indication of a second RAR message, the second RAR message is sent, where the first message is included in a first transport block, the second RAR message is included in a second transport block, and the first transport block and the second transport block are different transport blocks that are independently transmitted. When the indication information in the first RAR message indicates the second RAR message, the second RAR message is also sent, and the first RAR message and the second RAR message are independently transmitted through different transmission blocks. The first RAR message transmitted first may indicate the second RAR message transmitted later, and the user equipment may receive the second RAR message transmitted later according to the first RAR message received first. Because the control channel is not needed to be used for scheduling the transmission block, and the size of the transmission block of the RAR message can be flexibly changed, less network resources are occupied, the control channel detection of the user equipment is avoided, and the detection power consumption of the user equipment is also reduced.

Drawings

Fig. 1 is a system architecture diagram of a random access response message transmission method applied in a communication system;

fig. 2 is a schematic flowchart of a method for transmitting a random access response message at a base station according to an embodiment of the present invention;

fig. 3 is a schematic flowchart of another method for transmitting a random access response message on a ue according to an embodiment of the present invention;

fig. 4-a is a structural diagram of a RAR according to an embodiment of the present invention;

FIG. 4-b is a block diagram of an indication message according to an embodiment of the present invention;

fig. 4-c is a schematic diagram illustrating that an indication information indicates a second RAR message according to an embodiment of the present invention;

fig. 4-d is a schematic diagram illustrating another indication information indicating a second RAR message according to an embodiment of the present invention;

fig. 4-e is a schematic diagram illustrating another indication information indicating a second RAR message according to an embodiment of the present invention;

fig. 5-a is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 5-b is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 5-c is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one skilled in the art from the embodiments given herein are intended to be within the scope of the invention.

The terms "first," "second," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely descriptive of the invention in its embodiments for distinguishing between objects of the same nature. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Firstly, the system architecture applied to the transmission method of the random access response message is introduced, and the method is mainly applied to an LTE system or an LTE-Advanced (LTE-A) system. The present invention can also be applied to other communication systems, such as Wideband Code Division Multiple Access (WCDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), etc., as long as an entity in the communication system can send information and another entity in the communication system can receive information. For example, the information is a Random Access Response (RAR) message.

Please refer to fig. 1, which is a system architecture diagram of the transmission method of the random access response message applied in a communication system according to the present invention, as shown in fig. 1, a Base station (Base station) and User Equipments (UEs) 1 to 6 form a communication system, in which the UE may be called a terminal, the Base station sends an RAR message to one or more UEs of UEs 1 to 6, the Base station is a sending end device in the transmission method of the random access response message according to the present invention, and the UEs 1 to UE6 are receiving end devices in the transmission method of the random access response message according to the present invention. In addition, the UEs 4 to 6 also form a communication system, in which the UE5 may function as a base station, and the UE5 may send RAR messages to one or more of the UE4 and the UE 6.

The following are detailed below.

Referring to fig. 2, an embodiment of the method for transmitting a random access response message of the present invention may be applied to a base station sending a random access response message, and the method for transmitting a random access response message may include the following steps:

201. and sending a first RAR message to the user equipment, wherein the first RAR message comprises indication information about a second RAR message.

In the random access scenario provided by the invention, the user equipment firstly sends the random access preamble, and then the base station generates the corresponding random access response message for the received random access preamble. The base station includes one or more Random Access Responses (RARs) in the Random Access Response message to the user equipment. The Random Access response includes a Random Access Preamble Identifier (RAPID), which identifies the Random Access Preamble.

According to the prior art, before the base station sends the RAR message, the base station sends the control channel scheduling transport block first, and the user equipment needs to detect the control channel first, which wastes the power consumption of the user equipment. In the embodiment of the present invention, the base station does not send the control channel any more, but directly sends the RAR message, but the RAR message includes the indication information, and the opposite terminal device (i.e. the user equipment) completes receiving the RAR message through the indication of the indication information.

In some embodiments of the invention, the first RAR message consists of the indication information; or, the first RAR message includes the RAR in addition to the indication information. That is to say, in an implementation scenario, the first RAR message sent by the base station is equivalent to the indication information, and then the first RAR message sent by the base station to the user equipment is equivalent to sending the indication information to the user equipment, and the user equipment only needs to detect the indication information, and further determines whether to receive the second RAR message again through the obtained indication information. In another implementation scenario, the first RAR message sent by the base station includes: the indication information and the RAR, that is, the base station includes not only the indication information but also the RAR in the first RAR message, and after the user equipment detects the first RAR message, the indication information and the RAR can be acquired from the first RAR message.

In some embodiments of the present invention, the first RAR message includes indication information including an identifier, wherein the identifier indicates one or more of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR. That is to say, the indication information may directly indicate a format of information included in the RAR message, and after the user equipment acquires the indication information, the format of the information included in the RAR message may be determined. If the indication information directly indicates the format of the RAR message, the user equipment can also determine the format of the RAR message after acquiring the indication information. If the indication information directly indicates the format of the RAR, the user equipment may also determine the format of the RAR after acquiring the indication information. The format of which type of information is specifically indicated in the indication information may be decided with reference to a specific application scenario.

Further, in some embodiments of the present invention, the format of the RAR message specifically includes: a format of the first RAR message and/or a format of the second RAR message. The format of the RAR is specifically: a RAR format in the first RAR message and/or a RAR format in the second RAR message. That is, the indication information may directly indicate a format of the first RAR message, a format of the second RAR message, an RAR format in the first RAR message, and an RAR format in the second RAR message.

In some embodiments of the invention, the indication may comprise one or more of: random access preamble related information, RAR message related information. For example, the preamble information related to the random access preamble includes: one or more of random access preamble information, random access preamble group information, time resource information used for random access preamble transmission, frequency resource information used for random access preamble transmission, generation information of random access preamble, and sequence information of random access preamble.

For example, RAR-related information includes: one or more of time resource information used for RAR transmission, frequency resource information used for RAR transmission and RAR number information.

For example, RAR message-related information includes: one or more of transport block size information, modulation information, coding information, power control information, priority information, transport block information, timing information, repetition level information, hybrid automatic repeat request (HARQ) information, repetition number information, and bundling transmission time interval information.

In some embodiments of the present invention, before the step 201 sends the first RAR message, the method for transmitting a random access response message provided in the embodiments of the present invention may further include the following steps:

a1, determining one or more structures of the indication information according to the preset specification; or,

a2, receiving signaling, and determining one or more structures of indication information according to the received signaling; or,

and A3, determining one or more structures of the indication information according to the implicit indication.

Wherein, the base station needs to generate the indication information, and the base station may determine the indication information according to any one of the steps a1, a2, or A3. For example, the base station first determines one or more structures of the indication information by specifying in advance, that is, the indication information included in the first RAR message may have one or more structures. The configuration feature of the indication information may be a system specification or an upper layer device specification of the base station, for example, a Mobile Management Entity (MME) specifies in advance. Both the base station and the user equipment determine the structure of the indication information in accordance with the pre-specification. For another example, the base station first receives a signaling from an entity such as a system or an MME, and the base station determines the structure of the indication information according to the received instruction. For another example, the base station may obtain the structure of the indication information through an implicit indication, for example, the base station determines one or more structures of the indication information in a new field used in the existing information. For another example, the indication information may be a structure selected by the base station as the indication information among a plurality of structures.

b1, determining the transport block size of the first RAR message according to the predefined rule; and/or the presence of a gas in the gas,

b2, determining the size of the transmission block of the first RAR message according to the signaling indication; and/or the presence of a gas in the gas,

b3, self-determines the size of the transport block of the first RAR message, and sends a signaling indicating the size of the transport block of the first RAR message to the peer device.

Wherein, before sending the first RAR message, the base station needs to determine the transport block size of the first RAR message, the base station may determine the transport block size of the first RAR message according to any one of steps B1, B2, or B3, for example, the base station first determines the transport block size of the first RAR message by a predetermined rule. The transport block size of the first RAR message may be a system specification or an upper layer device specification of the base station. Such as MME provisioning. Both the base station and the user equipment determine the transport block size of the first RAR message in compliance with the pre-provisioning. For another example, the base station first receives a signaling, where the signaling is from an entity such as a system or an MME, and the base station determines the transport block size of the first RAR message according to the received instruction. For another example, the base station may set the size of the transmission block of the first RAR message by itself, and notify the opposite device (e.g., user equipment) after determining the size of the transmission block of the first RAR message by itself, where the size of the transmission block of the first RAR message determined by itself may satisfy the autonomous requirement of the base station, and the size of the transmission block of the first RAR message may be determined by combining the transmission resource condition of the base station itself. For example, the base station may determine the transport block size of the first RAR message in conjunction with the bandwidth or in conjunction with the current idle-busy condition of the base station.

202. And sending a second RAR message to the user equipment, wherein the first RAR message and the second RAR message are sent by the base station by using different transport blocks.

In this embodiment of the present invention, the first RAR message sent by the base station includes indication information, and according to the description of the indication information, the indication information may be used to indicate the first RAR message, and may also be used to indicate the second RAR message. If the base station has generated the second RAR message, the indication information may indicate the second RAR message, so when the indication information in the first RAR message includes an indication of the second RAR message, the base station sends not only the first RAR message but also the second RAR message, but the first RAR message and the second RAR message are transmitted independently using different transport blocks. For example, the first RAR message is included in a first transport block, the second RAR message is included in a second transport block, the first transport block and the second transport block are two different transport blocks, and the base station transmits the first transport block first and then transmits the second transport block. Each transport block is transmitted independently, that is, each of the two transport blocks is sent to the peer device (i.e., the user equipment) independently, and the independent transmission of each transport block enables the peer device to receive each transport block one by one. The RAR messages carried by different transport blocks are different. Different transport blocks may be transmitted independently, e.g., different transport blocks may be encoded and/or rate matched independently, and mapped independently.

In some embodiments of the invention, the second RAR message may not include a Media Access Control (MAC) header of the RAR; or, when the second RAR message includes the MAC header of the RAR, the RAR MAC header of the second RAR message may not include the random access preamble identification information. That is to say, the MAC header of the RAR usually carries the random access preamble information, and in the present invention, the indication information included in the first RAR message may carry the random access preamble identification information, so that for the second RAR message, it is not necessary to include the MAC header of the RAR. Another feasible implementation manner is that if the second RAR message includes the MAC header of the RAR, the RAR MAC header does not include the random access preamble identification information, so that the second RAR message is omitted from carrying the random access preamble identification information, and the user equipment can acquire the random access preamble identification information in advance when receiving the indication information of the first RAR message, and can further quickly determine whether the second RAR message is necessary to be received, thereby achieving the purpose of saving the power consumption of the user equipment.

In some embodiments of the invention, the indication information comprises a plurality of random access preamble identifications, one or several of the plurality of random access preambles corresponding to one second RAR message. For example, at least two random access preamble identifications are included in the indication information, and one random access preamble identification corresponds to one second RAR message in a feasible manner. Another possibility is that two or three random access preamble identities correspond to one second RAR message. It is also possible that all random access preamble identities included in the indication information correspond to one second RAR message. The random access preamble identity included in the indication information and the second RAR message satisfy a "one-to-one", or "many-to-one" relationship. The indication of the indication information to the second RAR message can be realized through the association relationship between the random access preamble identifier and the second RAR message. Through the indication information, the user equipment can quickly determine whether the second RAR message needs to be received or not, so that the user equipment is prevented from detecting the control channel and detecting the unmatched second RAR message, and the power consumption of the user equipment is saved.

As can be seen from the above description of the embodiments of the present invention, a first RAR message is first sent, where the first RAR message includes indication information, and if the indication information includes an indication of a second RAR message, a second RAR message is sent, where the first message is included in a first transport block, the second RAR message is included in a second transport block, and the first transport block and the second transport block are different transport blocks that are independently transmitted. When the first RAR message includes the indication information to indicate the second RAR message, the second RAR message is further sent, the first RAR message and the second RAR message are independently transmitted through different transmission blocks, the first RAR message transmitted first can indicate the second RAR message transmitted later, and the user equipment can determine whether to receive the second RAR message transmitted later according to the first RAR message received first. Because the control channel is not needed to be used for scheduling the transmission block, and the size of the transmission block of the RAR message can be flexibly changed, less network resources are occupied, the control channel detection of the user equipment is avoided, and the detection power consumption of the user equipment is also reduced.

In the foregoing embodiment, a transmission method of a random access response message is described from a base station side, and next, a transmission method of a random access response message provided by the present invention is described from an opposite end device (user equipment) side of the base station, please refer to fig. 3, where a transmission method of a random access response message provided by another embodiment of the present invention may include the following steps:

301. and acquiring the indication information contained in the first RAR message.

In the random access scenario provided by the invention, the user equipment sends the random access preamble first, then the base station generates the first RAR message according to the random access preamble sent by the user equipment, and the base station carries the indication information in the first RAR message.

In some embodiments of the invention, the first RAR message consists of the indication information; or, the first RAR message includes the RAR in addition to the indication information. That is to say, in an implementation scenario, the first RAR message sent by the base station is equivalent to the indication information, and then the first RAR message sent by the base station to the user equipment is equivalent to sending the indication information to the user equipment, and the user equipment only needs to detect the indication information, and further determines whether to receive the second RAR message again through the obtained indication information. In another implementation scenario, the first RAR message sent by the base station includes: the indication information and the RAR are set in the first RAR message, that is, the base station not only sets the indication information but also sets the RAR, and after the user equipment detects the first RAR message, the user equipment can acquire the indication information and the RAR from the first RAR message.

In some embodiments of the present invention, the first RAR message includes indication information including an identifier, wherein the identifier indicates one or more of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR. That is to say, the indication information may directly indicate a format of information included in the RAR message, and after the user equipment acquires the indication information, the format of the information included in the RAR message may be determined. If the indication information directly indicates the format of the RAR message, the user equipment may also determine the format of the RAR message after acquiring the indication information, and if the indication information directly indicates the format of the RAR message, the user equipment may also determine the format of the RAR message after acquiring the indication information. The format of which type of information is specifically indicated in the indication information may be decided with reference to a specific application scenario.

Further, in some embodiments of the present invention, the format of the RAR message specifically includes: the format of the first RAR message and/or the format of the second RAR message; the format of the RAR is specifically: a RAR format in the first RAR message and/or a RAR format in the second RAR message. That is, the indication information may directly indicate a format of the first RAR message, a format of the second RAR message, an RAR format in the first RAR message, and an RAR format in the second RAR message.

In some embodiments of the invention, the indication may comprise one or more of: random access preamble related information, RAR message related information. For example, the indication information may include one or more of the following information: random access preamble information, random access preamble group information, time resource information for random access preamble transmission, frequency resource information for random access preamble transmission, time resource information for RAR transmission, frequency resource information for RAR transmission, generation information for random access preamble, sequence information for random access preamble, transport block size information, modulation information, coding information, power control information, priority information, transport block information, RAR number information, timing information, repetition level information, Hybrid automatic repeat request (HARQ) information, repetition number information, and bundling transmission time interval information.

In some embodiments of the present invention, before the step 301 acquires the indication information included in the first RAR message, the method for transmitting a random access response message provided in the embodiment of the present invention may further include the following steps:

c1, determining one or more structures of the indication information according to the pre-regulation; or,

c2, receiving signaling, and determining one or more structures of the indication information according to the received signaling; or,

and C3, determining one or more structures of the indication information according to the implicit indication.

Before acquiring the indication information included in the first RAR message, the ue needs to determine the indication information first, and then the ue may determine the indication information according to any one of steps C1, C2, and C3. For example, the user equipment first determines one or more structures of the indication information by specifying in advance, that is, the indication information included in the first RAR message may have one or more structures. The structure of the indication information may be system specification, or upper layer device specification of the base station or the user equipment. E.g., as specified by the MME. Both the base station and the user equipment determine the structure of the indication information in accordance with the pre-specification. For another example, the user equipment first receives signaling from the base station, and the user equipment determines the structure of the indication information according to the received instruction. As another example, the user equipment may obtain the structure of the indication information through an implicit indication. For example, new fields used by the user equipment in the existing information determine one or more structures of the indicating information. The indication information may be in a plurality of structures, and one of the structures may be selected by the user equipment as the structure of the indication information.

d1, determining the size of the transmission block of the first RAR message according to the preset specification; or,

and D2, receiving signaling, and determining the transport block size of the first RAR message according to the received signaling.

Before obtaining the indication information included in the first RAR message, the ue needs to determine the transport block size of the first RAR message, and then the ue may determine the transport block size of the first RAR message according to any one of steps D1 or D2. For example, the ue first determines the transport block size of the first RAR message through a predetermined specification, and the transport block size of the first RAR message may be a system specification, or may be an upper layer device specification of the base station or the ue, such as an MME specification. Both the base station and the user equipment determine the transport block size of the first RAR message in compliance with the pre-provisioning. For another example, the ue first receives signaling from the base station, and determines the transport block size of the first RAR message according to the received instruction.

302. And determining a first RAR message and/or a second RAR message according to the acquired indication information, wherein the first RAR message and the second RAR message are independently transmitted by using different transmission blocks.

In this embodiment of the present invention, the user equipment first acquires that the first RAR message includes the indication information, and according to the description of the indication information, the indication information may be used to indicate the first RAR message or may be used to indicate the second RAR message, and the first RAR message and the second RAR message are transmitted independently using different transmission blocks. The individual transmission of each transport block may enable peer devices to receive each transport block one by one. The RAR messages carried by different transport blocks are different. Different transport blocks may perform independent transmission, for example, different transport blocks perform independent decoding and/or rate matching, the user equipment may receive the first RAR message according to the indication information, and determine whether to receive the second RAR message according to the indication information, and if it is determined that the second RAR message needs to be received according to the indication information, the user equipment may independently receive the second RAR message sent by the base station.

In some embodiments of the present invention, the MAC header of the RAR may not be included in the second RAR message; or, when the second RAR message includes the MAC header of the RAR, the RAR MAC header of the second RAR message may not include the random access preamble identification information. That is to say, the MAC header of the RAR usually carries the random access preamble information, and in the present invention, the indication information included in the first RAR message may carry the random access preamble identification information, so that for the second RAR message, it is not necessary to include the MAC header of the RAR. Another feasible implementation manner is that if the second RAR message includes the MAC header of the RAR, the RAR MAC header does not include the random access preamble identification information, so that the second RAR message is omitted from carrying the random access preamble identification information, so that the user equipment can acquire the random access preamble identification information in advance when receiving the indication information of the first RAR message, and further can quickly determine whether it is necessary to receive (or whether there is a matching) the second RAR message, thereby achieving the purpose of saving the power consumption of the user equipment.

In some embodiments of the present invention, the step 302 of determining the first RAR message and/or the second RAR message according to the obtained indication information may specifically include the following steps:

e1, determining the size of the transmission block of the second RAR message according to the indication information in the first RAR message;

e2, receiving the second RAR message according to the determined transport block size of the second RAR message.

In step E1, the user equipment acquires the indication information of the second RAR message included in the first RAR message. The indication information may indicate a transport block size of the second RAR message. The indication information may also indicate information for calculating the transport block size of the second RAR message. Therefore, the user equipment can determine the size of the transmission block of the second RAR message according to the indication information without scheduling the transmission block through the control channel, and after determining the size of the transmission block of the second RAR message, the user equipment can receive the second RAR message according to the size of the transmission block. The user equipment can determine the size of the transmission block of the second RAR message through the indication information of the second RAR message included in the first RAR message, so that the user equipment can determine that the base station further sends the second RAR message to the user equipment, and the user equipment continues to receive the second RAR message after receiving the first RAR message. It should be noted that, in other embodiments of the present invention, the second RAR message may also include indication information, and the indication information about the second RAR message may be the transport block size of the second RAR message or some information for determining the transport block size of the second RAR message.

f1, determining a first RAR message corresponding to the preamble information according to the preamble information related to the sent random access preamble;

f2, acquiring indication information included in the first RAR message, where the indication information indicates information related to one or more second RAR messages;

and F3, determining the second RAR message according to the indication information.

The user equipment sends the random access preamble to the base station, and the user equipment can determine a first RAR message corresponding to the preamble information according to the preamble information related to the random access preamble sent by the user equipment, and after obtaining the first RAR message, obtain the indication information from the first RAR message. The indication information indicates information related to one or more second RAR messages, the user equipment can determine that the second RAR messages need to be received through the indication information, the indication information has an indication effect on the user equipment receiving the second RAR messages, the user equipment does not need to use a control channel to schedule a transmission block, and the user equipment determines the second RAR messages under the indication of the indication information.

As can be seen from the description of the embodiment of the present invention, first of all, the indication information included in the first RAR message is obtained, and then the first RAR message and/or the second RAR message are determined according to the obtained indication information, where the first RAR message and the second RAR message use different transmission blocks for independent transmission, the first RAR message transmitted first can indicate the second RAR message transmitted later, and the user equipment can receive the second RAR message transmitted later according to the first RAR message received first, and since a control channel is not needed to be used for scheduling the transmission blocks, and the size of the transmission blocks of the RAR message can be flexibly changed, less network resources are occupied, detection of the control channel by the user equipment is avoided, and detection power consumption of the user equipment is also reduced.

In order to better understand and implement the above-mentioned schemes of the embodiments of the present invention, the following description specifically illustrates corresponding application scenarios.

Referring to fig. 4-a, which is a structural diagram of a RAR according to an embodiment of the present invention, the RAR may have one or more formats. The system or standard may pre-specify the format that the RAR employs. Alternatively, the base station (or system) indicates the format of the RAR using explicit or implicit methods. A RAR such as format 1 indicates that the RAR does not include header (or subheader) information. For example, the header (or subheader) information may be a MAC header (or subheader) of the RAR. Also, an RAR such as format 2 indicates that one RAR is associated with header (or subheader) information. The header (or subheader) information and the associated RAR may be contiguous in bit position in the packet data unit. Also, an RAR such as format 3 indicates that one RAR is associated with header (or subheader) information. The header (or subheader) information and the associated RAR may not be contiguous in bit position in the packet data unit.

The indication information included in the first RAR message may include an identifier. Wherein, the identifier indicates the structure (or format) of the RAR message, or the structure (or format) of the RAR, or the structure (or format) of the information contained in the RAR message. Different structures of information reflect different compositions of information. For example, one information structure is that a first RAR message contains a specific bit. As another example, the structure of one message indicates that there is no second RAR message.

For example, the indication information comprises a format indication of the first RAR message and/or a format indication of the second RAR message. For another example, the indication information includes a RAR format indication in the first RAR message and/or a RAR format indication in the second RAR message.

In particular, the indication information may comprise related information indicating the transmission of the second RAR message. For example, the RAR indication information may include: random access preamble information of the second RAR message, time resource information used for random access preamble transmission of the second RAR message, frequency resource information used for random access preamble transmission of the second RAR message, time resource information used for RAR transmission, frequency resource information used for RAR transmission, generation information of random access preamble of the second RAR message, sequence information of random access preamble of the second RAR message, transmission block size information of the second RAR message, modulation information of the second RAR message, coding information of the second RAR message, and one or more of power control information of the second RAR message, priority information of the second RAR message, RAR number information in the second RAR message, transmission block information of the second RAR message, timing information of the second RAR message, repetition level information of the second RAR message, HARQ information of the second RAR message, repetition frequency information of the second RAR message, and bundling transmission time interval information of the second RAR message.

For example, the preamble information for random access is one or more of a random access preamble index, a random access preamble group identification, and a random access preamble identification.

For example, the time resource information used for the random access preamble transmission is one or more of a time resource index used for the random access preamble transmission, a time resource identifier used for the random access preamble transmission, a start time resource index used for the random access preamble transmission, a start time resource identifier used for the random access preamble transmission, or a time resource width used for the random access preamble transmission.

For example, the frequency resource information used for the random access preamble transmission is one or more of a frequency resource index used for the random access preamble transmission, a frequency resource identifier used for the random access preamble transmission, a starting frequency resource index used for the random access preamble transmission, a starting frequency resource identifier used for the random access preamble transmission, or a frequency resource width used for the random access preamble transmission.

Part or all of the information in the indication information may be included in the first RAR message. For example, the indication information includes one or more random access preamble identifications. As shown in fig. 4-b, for the composition structure diagram of the indication information provided in the embodiment of the present invention, taking the example that the indication information includes 3 RAPID, the indication information includes: RAPID1, RAPID2, RAPID 3. As another example, the indication information is composed of a random access preamble identity and a resource indication. Wherein the random access preamble identification comprises one or more random access preamble identifications. The resource indication comprises one or more of time resource information used by random access preamble transmission, frequency resource information used by random access preamble transmission, transmission block size information, modulation coding information and RAR number information. Fig. 4-b illustrates that the first information comprises 3 random access preamble identities and 3 resource indications. Where RAPID1 and resource indication 1 indicate information of one RAR included in the second RAR message. The RAPID2 and the resource indication 2 indicate information of another RAR contained in the second RAR message. The RAPID3 and the resource indication 3 indicate information of another RAR contained in the second RAR message.

For another example, the indication information may include partially repeated or completely repeated information. The structure of the indication information may be indicated by repeated information. As shown in fig. 4-b, the RAPID3 is repeated information, repeated random access preamble identification and/or resource indication, the repeated information indicating that the base station did not generate the second RAR message.

For example, the indication information is composed of a specific bit (or a null sub-segment, or null, or not, or application, or a specific field). Alternatively, the indication information includes at least a specific bit. For example, the first information includes specific bits and a random access preamble identity, or the indication information includes specific bits and a resource indication, or the first information includes specific bits, a random access preamble identity and a resource indication.

In addition, the transport block size of the first RAR message is preset, or preconfigured, or indicated by signaling. Such as by system information indicating the transport block size of the first RAR message. Because the size of the transmission block of the first RAR message is preset or configured, the user equipment determines the size of the transmission block of the first RAR message when receiving the first RAR message, so as to receive the first RAR message.

The first RAR message may have one or more formats. A system or standard may pre-specify the format in which the first RAR message is to be in. Alternatively, the base station (or system) indicates the format of the first RAR message using explicit or implicit methods. For example, the format of the first RAR message is: the first RAR message is composed of an identifier and indication information, or an identifier and RAR. The identifier is formed of one or more bits, and different states of the identifier indicate different compositions of different first RAR messages. For example, the identifier is composed of one bit, if the bit status of the identifier is 0, it indicates that the first RAR message includes one or more RARs, and if the bit status of the identifier is 1, it indicates that the first RAR message is composed of the indication information.

The foregoing describes a first RAR message, followed by an example of the sending and receiving of a second RAR message, which may include only one or more RARs. Alternatively, the second RAR message includes at least one or more RARs.

The transport block size may be flexible. For example, the first RAR message indicates the number of RARs that the second RAR message contains. The user equipment can determine the size of the transmission block of the second RAR message according to the number of RARs and the size of each RAR in the second RAR message. The size of each RAR in the second RAR message may be indicated in the first RAR message or predefined.

As another example, the first RAR message may directly indicate the transport block size of the second RAR message. Of course, the transport block size of the second RAR message may also be predefined. It should be noted that, because the first RAR message may indicate preamble information of random access corresponding to (or included in) each RAR in the second RAR message, the RAR in the second RAR message may not include the preamble information of random access. Of course, the second RAR message may be constructed in the same format as some of the first RAR messages exemplified previously.

In one first RAR message, information associated with one or more second RAR messages may be indicated. The associated information may be indicative information. As in fig. 4-c, 4-d, 4-e, the associated information is RAPID. As shown in fig. 4-c, the first information in the first RAR message includes 3 RAPID, and the 3 RAPID are all associated with the same second RAR message. And each RAPID is associated with one RAR in the second RAR message. As shown in fig. 4-d, the indication information in the first RAR message includes 3 RAPID, each RAPID is associated with one second RAR message, and each second RAR message only includes one RAR.

Of course, the associated information may also be other RAR resource indication information. For example, the resource indication information may be: the random access preamble information, the random access preamble group information, the time resource information of the second RAR message transmission, the frequency resource information of the second RAR message transmission, the number of RARs included in the second RAR message, the size of the transmission block of the second RAR message, the modulation mode of the second RAR message, the coding mode of the second RAR message, and the absence of one or more of the second RAR message. As shown in fig. 4-e, the indication information of the first RAR message includes 3 resource indications, i.e., resource indication 1, resource indication 2, and resource indication 3, each resource indication may indicate one second RAR message, and each second RAR message may include one or more RARs.

It should be noted that, the other information in fig. 4-c, fig. 4-d, and fig. 4-e is that the indication information may include not only the resource indication or RAPID, but also other information besides the resource indication information or RAPID information.

A specific example of the RAR information received by the ue is given below.

And the user equipment receives the first RAR information and determines the first RAR information.

The user equipment determines the transport block size of the first RAR message according to a preset (or a preset, or a signaling indication). And the user equipment acquires the information associated with one or more second RAR messages indicated in the first RAR message according to the received first RAR message.

If the RAR is included in the first RAR message, the user equipment is matched with the RAPID indicated by the RAR in the first RAR message. If the random access preamble (or random access preamble group information) sent by the user equipment is matched with the RAPID information indicated by the RAR in the first RAR message, the user equipment considers that the RAR is a random access response given to the user equipment by the base station. If the random access preamble (or random access preamble group information) sent by the user equipment cannot be matched with the RAPID information indicated by the RAR in the first RAR message, the user equipment considers that the RAR in the first RAR message is not the random access response of the user equipment.

If the first RAR message also comprises indication information, and the indication information comprises RAPID. If the random access preamble (or random access preamble group information) sent by the user equipment is matched with the RAPID in the indication information, the user equipment considers that the base station sends a random access response to the user equipment, and the random access response is contained in a second RAR message associated with the RAPID. And the user equipment receives the second RAR message and acquires the RAR associated with the RAPID according to the received second RAR message. If the random access preamble (or random access preamble group information) information sent by the user equipment is not matched with the RAPID in the indication information, the user equipment considers that the base station does not send a random access response to the user equipment. Or, if the random access preamble (or random access preamble group information) information sent by the ue does not match the RAPID in the first RAR message, the ue considers that the base station does not send a random access response to the ue.

If the first RAR message contains indication information, and the indication information does not contain RAPID. And the user equipment acquires the associated information indicating the second RAR message in the first RAR message according to the indication information. And receiving a second RAR message according to the acquired association information, and determining RAR information given to the user equipment by the base station according to the received second RAR message.

If the first RAR message contains the indication information, the indication information indicates that no second RAR message exists. And if the user equipment considers that the RAR in the first RAR message is not the random access response of the user equipment, the user equipment considers that the base station does not send the random access response to the user equipment. At which point the user equipment may retransmit the random access preamble.

If the user equipment considers that the RAR in the first RAR message is not the random access response of the user equipment, and the user equipment does not have a matching RAPID (or RAR) in the second RAR message or the RAR message (such as the third RAR message) indicated by the second RAR message, the base station is considered not to send the random access response to the user equipment. At which point the user equipment may retransmit the random access preamble.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.

To facilitate a better implementation of the above-described aspects of embodiments of the present invention, the following also provides relevant means for implementing the above-described aspects.

Referring to fig. 5-a, a base station 500 according to an embodiment of the present invention may include: a first sending module 501, a second sending module 502, wherein,

a first sending module 501, configured to send a first RAR message to a user equipment, where the first RAR message includes indication information about a second RAR message;

a second sending module 502, configured to send the second RAR message to the user equipment;

In some embodiments of the invention, the first RAR message consists of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

In some embodiments of the invention, the indication information comprises an identifier, wherein the identifier indicates one or more of a format of information contained in the RAR message, a format of the RAR message, and a format of the RAR.

In some embodiments of the present invention, a format of the RAR message specifically includes: a format of the first RAR message and/or a format of the second RAR message;

In some embodiments of the invention, the indication information comprises one or more of: random access preamble related information, RAR message related information.

In some embodiments of the present invention, referring to fig. 5-b, the base station 500 further includes: a first determining module 503, configured to determine one or more structures of the indication information according to a predetermined specification before the first sending module 501 sends the first RAR message; or receiving signaling, and determining one or more structures of the indication information according to the received signaling; alternatively, one or more structures of the indication information are determined from implicit indications.

In some embodiments of the present invention, referring to fig. 5-c, the base station 800 further includes: a second determining module 504, configured to determine, according to a predetermined specification, a transport block size of a first RAR message before the first sending module sends the first RAR message; and/or determining the size of a transmission block of the first RAR message according to a signaling indication; and/or determining the size of the transmission block of the first RAR message by self, and sending a signaling indicating the size of the transmission block of the first RAR message to opposite-end equipment.

In some embodiments of the present invention, the second RAR message may not include a media access control, MAC, header of the RAR; or,

when the second RAR message includes the MAC header of the RAR, the RAR MAC header of the second RAR message may not include the random access preamble identification information.

In some embodiments of the present invention, the indication information includes a plurality of random access preamble identifications, and one or several random access preambles in the plurality of random access preambles correspond to one second RAR message.

As can be seen from the above description of the embodiments of the present invention, a first RAR message is first sent, where the first RAR message includes indication information, and if the indication information includes an indication of a second RAR message, a second RAR message is sent, where the first message is included in a first transport block, the second RAR message is included in a second transport block, and the first transport block and the second transport block are different transport blocks that are independently transmitted. When the first RAR message comprises the indication information to indicate the second RAR message, the second RAR message is sent, the first RAR message and the second RAR message are independently transmitted through different transmission blocks, the first RAR message transmitted firstly can indicate the second RAR message transmitted later, the user equipment can receive the second RAR message transmitted later according to the first RAR message received firstly, the transmission blocks do not need to be scheduled by using a control channel, and the size of the transmission blocks of the RAR message can be flexibly changed, so that less network resources are occupied, the user equipment is prevented from detecting the control channel, and the detection power consumption of the user equipment is reduced.

Referring to fig. 6, a user equipment 600 according to an embodiment of the present invention may include: an obtaining module 601, a determining module 602, wherein,

an obtaining module 601, configured to obtain indication information included in the first RAR message;

a determining module 602, configured to determine the first RAR message and/or the second RAR message according to the obtained indication information, where the first RAR message and the second RAR message are independently transmitted using different transmission blocks.

the first RAR message further comprises RAR besides the indication information.

In some embodiments of the present invention, the determining module is further configured to determine, before the obtaining module obtains the indication information included in the first RAR message, one or more structures of the indication information according to a predetermined specification; or receiving signaling, and determining one or more structures of the indication information according to the received signaling; alternatively, one or more structures of the indication information are determined from implicit indications.

In some embodiments of the present invention, the determining module is further configured to determine, before the obtaining module obtains the indication information included in the first RAR message, a size of a transmission block of the first RAR message according to a predetermined specification; or receiving signaling, and determining the transport block size of the first RAR message according to the received signaling.

In some embodiments of the present invention, the determining module is specifically configured to determine, according to the indication information in the first RAR message, a transport block size of the second RAR message; and receiving the second RAR message according to the determined transport block size of the second RAR message.

when the second RAR message includes the MAC header of the RAR, the MAC header of the RAR of the second RAR message may not include the random access preamble identification information.

In some embodiments of the present invention, the determining module 602 is specifically configured to determine, according to preamble information related to a sent random access preamble, a first RAR message corresponding to the preamble information; acquiring indication information contained in the first RAR message, wherein the indication information indicates information related to one or more second RAR messages; and determining a second RAR message according to the indication information.

It should be noted that, because the contents of information interaction, execution process, and the like between the modules/units of the apparatus are based on the same concept as the method embodiment of the present invention, the technical effect brought by the contents is the same as the method embodiment of the present invention, and specific contents may refer to the description in the foregoing method embodiment of the present invention, and are not described herein again.

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

Referring to fig. 7, a base station 700 according to another embodiment of the present invention is described as follows:

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

The processor 703 is configured to execute the transmission method of the random access response RAR message corresponding to the foregoing fig. 2.

Specifically, the processor 703 is configured to execute the following steps:

sending the second RAR message to the user equipment;

In some embodiments of the invention, the first RAR message stored in the memory 704 consists of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

In some embodiments of the invention, the indication information stored in the memory 704 includes an identifier, wherein the identifier indicates one or more of a format of information contained in the RAR message, a format of the RAR message, and a format of the RAR.

In some embodiments of the present invention, the format of the RAR message stored in the memory 704 is specifically: a format of the first RAR message and/or a format of the second RAR message;

In some embodiments of the present invention, the indication stored in memory 704 includes one or more of: random access preamble related information, RAR message related information.

In some embodiments of the invention, the processor 703 is further configured to perform the steps of: prior to sending the first RAR message,

In some embodiments of the present invention, the media access control MAC header of the RAR is not included in the second RAR message stored in the memory 704; or,

In some embodiments of the present invention, the indication information stored in the memory 704 includes a plurality of random access preamble identifications, and one or several random access preambles of the plurality of random access preambles correspond to one second RAR message.

Referring to fig. 8, a user equipment 800 according to another embodiment of the present invention is described below, where the user equipment includes:

an input device 801, an output device 802, a processor 803 and a memory 804 (wherein the number of processors 803 in the user equipment 800 may be one or more, one processor is taken as an example in fig. 8). In some embodiments of the present invention, the input device 801, the output device 802, the processor 803 and the memory 804 may be connected by a bus or other means, wherein the bus connection is taken as an example in fig. 8.

The processor 803 is configured to execute the transmission method of the random access response RAR message corresponding to fig. 3.

Specifically, the processor 803 is configured to perform the following steps:

acquiring indication information contained in the first RAR message;

In some embodiments of the invention, the first RAR message stored in the memory 804 consists of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

In some embodiments of the invention, the indication information stored in the memory 804 includes an identifier, wherein the identifier indicates one or more of a format of information contained in the RAR message, a format of the RAR message, and a format of the RAR.

In some embodiments of the present invention, the format of the RAR message stored in the memory 804 is specifically: a format of the first RAR message and/or a format of the second RAR message;

In some embodiments of the present invention, the indication information stored in memory 804 includes one or more of: random access preamble related information, RAR message related information.

In some embodiments of the invention, the processor 803 is further configured to perform the following steps: before the indication information contained in the first RAR message is acquired,

In some embodiments of the invention, the processor 803 is specifically configured to perform the following steps:

In some embodiments of the invention, the second RAR message stored in the memory 804 does not include a media access control, MAC, header of the RAR; or,

and determining a second RAR message according to the indication information.

It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or 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 solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus necessary general hardware, and may also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, the implementation of a software program is a more preferable embodiment for the present invention. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

In summary, the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method for transmitting a random access response, RAR, message at a base station, comprising:

determining a transport block size of a first RAR message;

determining indication information, wherein the indication information is used for indicating the size of a transmission block of a second RAR message;

sending a first RAR message to user equipment, wherein the first RAR message comprises the indication information; sending the second RAR message to the user equipment;

2. The method of claim 1, wherein the first RAR message consists of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

3. The method according to claim 1, wherein the indication information includes an identifier, wherein the identifier indicates at least one of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR.

4. The method of claim 3, wherein the format of the RAR message is specifically: a format of the first RAR message and/or a format of the second RAR message;

5. The method according to any of claims 1-4, wherein the indication information comprises one or more of: random access preamble related information, RAR message related information.

6. The method of claim 5, wherein prior to the sending the first RAR message, the method further comprises:

7. The method according to any one of claims 1-4, wherein before the sending the first RAR message, the method further comprises:

8. The method according to any one of claims 1-4, wherein the second RAR message does not include a media-intervention control, MAC, header of the RAR; or,

9. The method according to any one of claims 1-4, wherein the indication information comprises a plurality of random access preamble identifications, and wherein one or several of the plurality of random access preambles correspond to one second RAR message.

10. A transmission method of a Random Access Response (RAR) message on user equipment is characterized by comprising the following steps:

determining the size of a transmission block of a first RAR message, and receiving the first RAR message according to the size of the transmission block of the first RAR message;

acquiring indication information contained in the first RAR message; the indication information is used for indicating the size of a transmission block of the second RAR message;

and determining the second RAR message according to the acquired indication information, wherein the first RAR message and the second RAR message are transmitted independently by using different transmission blocks.

11. The method of claim 10, wherein the first RAR message consists of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

12. The method of claim 10, wherein the indication information comprises an identifier, and wherein the identifier indicates one or more of a format of information contained in the RAR message, a format of the RAR message, and a format of the RAR.

13. The method of claim 12,

14. The method according to any one of claims 10 to 13,

15. The method according to any one of claims 10-13, wherein before obtaining the indication information included in the first RAR message, the method further comprises:

16. The method according to any one of claims 10-13, wherein before obtaining the indication information included in the first RAR message, the method further comprises:

17. The method according to any one of claims 10-13, wherein the determining the first RAR message and/or the second RAR message according to the acquired indication information comprises:

18. The method according to any of claims 10-13, wherein the second RAR message does not include a media-intervention control, MAC, header of the RAR; or,

19. The method according to any one of claims 10-13, wherein the determining the first RAR message and/or the second RAR message according to the acquired indication information comprises:

and determining a second RAR message according to the indication information.

20. A base station, comprising:

a first determining module, configured to determine a transport block size of a first RAR message;

a second determining module, configured to determine indication information, where the indication information is used to indicate a transport block size of a second RAR message;

a first sending module, configured to send a first RAR message, where the first RAR message includes the indication information;

a second sending module, configured to send a second RAR message if the indication information includes an indication of the second RAR message, where the first RAR message and the second RAR message use different transport blocks for independent transmission.

21. The base station of claim 20, wherein the first RAR message consists of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

22. The base station of claim 20, wherein the indication information comprises an identifier, and wherein the identifier indicates at least one of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR.

23. The base station of claim 22, wherein the format of the RAR message is specifically: a format of the first RAR message and/or a format of the second RAR message;

24. The base station according to any of claims 20-23, wherein said indication information comprises one or more of: random access preamble related information, RAR message related information.

25. The base station of claim 24, wherein the second determining module is configured to determine one or more structures of the indication information according to a predetermined specification before the first sending module sends the first RAR message; or receiving signaling, and determining one or more structures of the indication information according to the received signaling; alternatively, one or more structures of the indication information are determined from implicit indications.

26. The base station according to any of claims 20-23, wherein the first determining module is configured to determine a transport block size of a first RAR message according to a predetermined specification before the first sending module sends the first RAR message; and/or determining the size of a transmission block of the first RAR message according to a signaling indication; and/or determining the size of the transmission block of the first RAR message by self, and sending a signaling indicating the size of the transmission block of the first RAR message to opposite-end equipment.

27. The base station of any of claims 20-23, wherein the second RAR message does not include a media-intervention control, MAC, header of the RAR; or,

28. The base station according to any of claims 20-23, wherein the indication information comprises a plurality of random access preamble identifications, and wherein one or several of the plurality of random access preambles correspond to a second RAR message.

29. A user device, comprising:

a determining module, configured to determine a transport block size of the first RAR message;

a receiving module, configured to receive the first RAR message according to a size of a transmission block of the first RAR message;

the acquisition module is used for acquiring the indication information contained in the first RAR message; the indication information is used for indicating the size of a transmission block of the second RAR message;

the determining module is further configured to determine the second RAR message according to the acquired indication information, where the first RAR message and the second RAR message are transmitted independently using different transmission blocks.

30. The ue of claim 29, wherein the first RAR message consists of the indication information; or,

the first RAR message further comprises RAR besides the indication information.

31. The ue of claim 29, wherein the indication information comprises an identifier, and wherein the identifier indicates one or more of a format of information contained in the RAR message, a format of the RAR message, and a format of the RAR.

32. The user equipment of claim 31,

33. The user equipment according to any of claims 29-32,

34. The ue according to any one of claims 29-32, wherein the determining module is further configured to determine one or more structures of the indication information according to a predefined rule before the obtaining module obtains the indication information included in the first RAR message; or receiving signaling, and determining one or more structures of the indication information according to the received signaling; alternatively, one or more structures of the indication information are determined from implicit indications.

35. The ue according to any one of claims 29-32, wherein the determining module is further configured to determine a transport block size of a first RAR message according to a predetermined specification before the obtaining module obtains the indication information included in the first RAR message; or receiving signaling, and determining the transport block size of the first RAR message according to the received signaling.

36. The ue according to any one of claims 29-32, wherein the determining module is specifically configured to determine a transport block size of the second RAR message according to the indication information in the first RAR message; and receiving the second RAR message according to the determined transport block size of the second RAR message.

37. The ue according to any of claims 29-32, wherein the second RAR message does not include a media access control, MAC, header of the RAR; or,

38. The ue according to any one of claims 29 to 32, wherein the determining module is specifically configured to determine, according to the preamble information related to the sent random access preamble, a first RAR message corresponding to the preamble information; acquiring indication information contained in the first RAR message, wherein the indication information indicates information related to one or more second RAR messages; and determining a second RAR message according to the indication information.