WO2016161650A1 - 一种随机接入响应消息的传输方法和基站以及用户设备 - Google Patents

一种随机接入响应消息的传输方法和基站以及用户设备 Download PDF

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Publication number
WO2016161650A1
WO2016161650A1 PCT/CN2015/076363 CN2015076363W WO2016161650A1 WO 2016161650 A1 WO2016161650 A1 WO 2016161650A1 CN 2015076363 W CN2015076363 W CN 2015076363W WO 2016161650 A1 WO2016161650 A1 WO 2016161650A1
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Prior art keywords
rar message
rar
indication information
message
information
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PCT/CN2015/076363
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English (en)
French (fr)
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WO2016161650A9 (zh
Inventor
余政
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华为技术有限公司
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Priority to PCT/CN2015/076363 priority Critical patent/WO2016161650A1/zh
Priority to CN201580036238.2A priority patent/CN106664720B/zh
Publication of WO2016161650A1 publication Critical patent/WO2016161650A1/zh
Publication of WO2016161650A9 publication Critical patent/WO2016161650A9/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a method for transmitting a random access response message, a base station, and a user equipment.
  • the user equipment first receives the control channel, determines the transport block size (TBS, Transport Block Size) carried by the data channel scheduled by the control channel according to the control information in the received control channel, and determines the transport block. After receiving the data, it starts to receive data.
  • the control channel may be a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), and the data channel may be The physical downlink shared data channel (PDSCH) is used by the user equipment to determine the size of the transport block carried by the PDSCH from the PDCCH or the EPDCCH. Since the control channel indicates the TBS of the transport block before the data channel is received, the TBS of the transport block can take different values as needed.
  • PDSCH Physical Downlink shared data channel
  • the user equipment in a random access scenario, 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.
  • RARs random access responses
  • RAPID Random Access Preamble IDentitfier
  • RAPID Random Access Preamble IDentitfier
  • the user equipment 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 a random connection sent by the base station to itself. Enter the leading response. In the LTE system, the random access response message sent by the base station to the user equipment is carried over the PDSCH. As described above, the user equipment needs to first receive the control channel, obtain the TBS of the random access response message according to the indication in the received control channel, and then perform the reception of the random access response message according to the determined TBS.
  • the random access response message may be successfully received, but no matching random access response is found. That is, in the random access response message, the random access preamble identified by the RAPID corresponding to the random access response is the random access preamble sent by the user equipment. This will waste The power consumption of the user equipment. Especially for low-cost or low-complexity user equipment, wasted power consumption is critical.
  • random access response messages require many iterations to achieve reliable transmission. If the transmission of the random access response message is still based on the control channel scheduling, the user equipment 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 for the user equipment to successfully receive the random access response message, the control channel needs to be repeated many times, and the random access response message also needs to be repeated many times, thereby greatly increasing the system resource overhead, reducing the resource utilization of the network, and greatly increasing the number of times. User equipment detection complexity and power consumption overhead.
  • the embodiment of the present invention provides a method for transmitting a random access response message, a base station, and a user equipment, which can complete transmission of a random access response message without using a control channel scheduling information transmission block, and occupy less Network resources, easy to detect user equipment.
  • an embodiment of the present invention provides a method for transmitting a random access response message at a base station, including:
  • the first RAR message and the second RAR message are sent by the base station using different transport blocks.
  • the first RAR message is formed by the indication information
  • the first RAR message includes an RAR in addition to the indication information.
  • the indication information includes an identifier, where the identifier indicates the RAR message At least one of a format of the included information, a format of the RAR message, and a format of the RAR.
  • the format of the RAR message is specifically: a format of the first RAR message and/or the The format of the second RAR message;
  • the format of the RAR is specifically: an RAR format and/or the first in the first RAR message.
  • the indication information includes the following one Or multiple: random access preamble related information, RAR related information, RAR message related information.
  • the method before the sending the first RAR message, the method further includes:
  • One or more structures of the indication information are determined according to an implicit indication.
  • the method further includes:
  • the transport block size of the first RAR message is determined by itself, and signaling indicating a transport block size of the first RAR message is sent to the peer device.
  • the seventh aspect in the first aspect in combination with the first aspect or the first possible second or first possible or the fourth possible or the fifth possible or the sixth possible possible implementation of the first aspect, the seventh aspect in the first aspect In a possible implementation, the media intervention control MAC header that does not include the RAR in the second RAR message; or
  • the random access preamble identification information is not included in the RAR MAC header of the second RAR message.
  • the indication information includes multiple random access preamble identifiers, and one or more random access preambles of the multiple random access preambles correspond to one second RAR message.
  • the embodiment of the present invention further provides a method for transmitting a random access response message on a user equipment, including:
  • the first RAR message is configured by the indication information
  • the first RAR message includes an RAR in addition to the indication information.
  • the indication information includes an identifier, where the identifier indicates that the RAR message includes One or more of the format of the information, the format of the RAR message, and the format of the RAR.
  • 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: an RAR format in the first RAR message and/or an RAR format in the second RAR message.
  • the indication information includes one or more of the following: random access preamble related information, RAR related information, and RAR message related information.
  • the method further includes:
  • One or more structures of the indication information are determined according to an implicit indication.
  • the method further includes:
  • Receiving signaling determining a transport block size of the first RAR message according to the received signaling.
  • the seventh aspect in the second aspect includes:
  • the media intervention control MAC header that does not include the RAR in the second RAR message;
  • the random access preamble identification information is not included in the MAC header of the RAR of the second RAR message.
  • the first or second possible or third possible or the fourth possible or the fifth possible or the sixth possible or the seventh possible or the eighth possible possible implementation of the second aspect or the second aspect The ninth possible implementation manner of the second aspect, the determining, by the obtained indication information, the first RAR message and/or the second RAR message,
  • an embodiment of the present invention further provides a base station, including:
  • a first sending module configured to send a first RAR message to the user equipment, where the first RAR message includes indication information about the second RAR message;
  • a second sending module configured to send the second RAR message to the user equipment
  • the first RAR message and the second RAR message are sent by the base station using different transport blocks.
  • the first RAR message is formed by the indication information
  • the first RAR message includes an RAR in addition to the indication information.
  • the indication information includes an identifier, where the identifier is in the RAR message At least one of a format of the included information, a format of the RAR message, and a format of the RAR.
  • the format of the RAR message is specifically: a format of the first RAR message and/or the foregoing The format of the second RAR message;
  • the format of the RAR is specifically: an RAR format in the first RAR message and/or an RAR format in the second RAR message.
  • the indication information includes the following one Or multiple: random access preamble related information, RAR related information, RAR message related information.
  • the base station further includes: a first determining module, configured to send, by the first sending module, a first RAR Before the message, determining one or more structures of the indication information according to a predetermined specification; or receiving signaling, determining one or more structures of the indication information according to the received signaling; or, according to the implicit Instructing to determine one or more structures of the indication information.
  • a first determining module configured to send, by the first sending module, a first RAR Before the message, determining one or more structures of the indication information according to a predetermined specification; or receiving signaling, determining one or more structures of the indication information according to the received signaling; or, according to the implicit Instructing to determine one or more structures of the indication information.
  • the base station further includes: a second determining module, configured to determine, according to a predetermined rule, a transport block size of the first RAR message before the first sending module sends the first RAR message; and/or according to signaling indication Determining a transport block size of the first RAR message; and/or determining a transport block size of the first RAR message and transmitting signaling indicating a transport block size of the first RAR message to the peer device.
  • the seventh aspect in the third aspect In a possible implementation, the media intervention control MAC header that does not include the RAR in the second RAR message; or,
  • the random access preamble identification information is not included in the RAR MAC header of the second RAR message.
  • the indication information includes multiple random access preamble identifiers, and one or more random access preambles of the multiple random access preambles correspond to one second RAR message.
  • the embodiment of the present invention further provides a user equipment, including:
  • An obtaining module configured to obtain indication information included in the first RAR message
  • a determining module configured to determine, according to the obtained indication information, the first RAR message and/or the second RAR message, where the first RAR message and the second RAR message are independently transmitted by using different transport blocks .
  • the first RAR message is formed by the indication information
  • the first RAR message includes an RAR in addition to the indication information.
  • the indication information includes an identifier, where the identifier indicates that the RAR message includes One or more of the format of the information, the format of the RAR message, and the format of the RAR.
  • 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: an RAR format in the first RAR message and/or an RAR format in the second RAR message.
  • the indication information includes one or more of the following: random access preamble related information, RAR related information, and RAR message related information.
  • the determining module And determining, before the acquiring module acquires the indication information included in the first RAR message, determining one or more structures of the indication information according to a predetermined specification; or receiving signaling, determining, according to the received signaling, One or more structures of the indication information; or one or more structures of the indication information are determined according to the implicit indication.
  • the determining module is further configured to: before the acquiring module acquires the indication information included in the first RAR message, determine a transport block size of the first RAR message according to a predetermined specification; or receive signaling, according to the received The signaling determines a transport block size of the first RAR message.
  • 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; according to the determined transport block size of the second RAR message Receiving the second RAR message.
  • the media intervention control MAC header that does not include the RAR in the second RAR message;
  • the random access preamble identification information is not included in the MAC header of the RAR of the second RAR message.
  • the determining module is specifically configured to determine, according to the sent preamble information related to the random access preamble, the first RAR message corresponding to the preamble information; The indication information included in the first RAR message, where the indication information indicates information related to one or more second RAR messages; and determining a second RAR message according to the indication information.
  • the first RAR message is sent, where the first RAR message includes the indication information, and if the indication information includes the indication of the second RAR message, the second RAR message is sent, where the first message is included in the first In the transport block, the second RAR message is included in the second transport block, the first pass The transport block and the second transport block are different transport blocks that are transmitted independently.
  • 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 transport blocks.
  • the second RAR message that is transmitted may be indicated by the first RAR message that is transmitted first, and the user equipment may receive the second RAR message that is transmitted later according to the first RAR message that is received first. Since the control channel is not required to be used to schedule the transport block, and the transport block size of the RAR message can be flexibly changed, thereby occupying less network resources, preventing the user equipment from detecting the control channel, and reducing the detection power consumption of the user equipment.
  • FIG. 1 is a system architecture diagram of a method for transmitting a random access response message according to the present invention applied to a communication system;
  • FIG. 2 is a schematic block diagram showing 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 block diagram showing another method for transmitting a random access response message on a user equipment according to an embodiment of the present invention
  • FIG. 4 is a structural diagram of a RAR according to an embodiment of the present disclosure.
  • FIG. 4 is a structural diagram of the indication information according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of indicating indication information to a second RAR message according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of another indication information indicating an second RAR message according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of another indication information indicating an second RAR message according to an embodiment of the present disclosure
  • FIG. 5-a is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 5-b is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 5-c is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • the embodiment of the present invention provides a method for transmitting a random access response message, a base station, and a user equipment, which can complete transmission of a random access response message without using a control channel scheduling information transmission block, and occupy less Network resources, easy to detect user equipment.
  • the present invention is mainly applied to an LTE system or an advanced LTE-Advanced (LTE-Advanced) system.
  • LTE-Advanced LTE-Advanced
  • the present invention can also be applied to other communication systems, for example, Wideband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), and the like.
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • the information is a Random Access Response (RAR) message.
  • RAR Random Access Response
  • a system architecture diagram of a method for transmitting a random access response message according to the present invention is applied in a communication system, as shown in FIG. 1 , a base station (English name Base station) and a user equipment (UE, User Equipment) 1 to UE6 constitute a communication system, in which the user equipment may be referred to as a terminal, and the base station transmits a RAR message to one or more UEs in UE1 to UE6, and the base station is a transmission method of the random access response message of the present invention.
  • the transmitting end device, UE1 to UE6, is the receiving end device in the transmission method of the random access response message of the present invention.
  • UE4 to UE6 also form a communication system, in which UE5 can be implemented as a function of a base station, and UE5 can send a RAR message to One or more UEs in UE4 and UE6.
  • An embodiment of the method for transmitting a random access response message of the present invention is applicable to the sending of the random access response message by the base station.
  • the method for transmitting the random access response message may include the following steps. :
  • the user equipment first sends a random access preamble, and then the base station generates a corresponding random access response message to 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.
  • RARs random access responses
  • the random access response includes a Random Access Preamble IDentitfier (RAPID), and the RAPID identifies the random access preamble.
  • RAPID Random Access Preamble IDentitfier
  • the control channel schedules the transmission block, and the user equipment needs to detect the control channel first, which wastes the power consumption of the user equipment.
  • the base station does not send the control channel, but directly sends the RAR message, but includes the indication information in the RAR message, and the peer device (ie, the user equipment) completes the reception of the RAR message by the indication of the indication information.
  • the first RAR message is composed of indication information; or, the first RAR message includes an RAR in addition to the indication information. That is, in an implementation scenario, the first RAR message sent by the base station is equivalent to the indication information, and 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 may be, and the obtained indication information further determines whether the second RAR message needs to be received again.
  • the first RAR message sent by the base station includes: indication information and 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 are obtained from the first RAR message.
  • the indication information included in the first RAR message includes an identifier, where the identifier indicates a format of the information included in the RAR message, a format of the RAR message, and a format in the RAR.
  • the indication information may directly indicate the format of the information included in the RAR message, and after obtaining the indication information, the user equipment may determine the format of the information included in the RAR message. If the indication information directly indicates the format of the RAR message, the user equipment obtains The format of the RAR message can also be determined after 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 obtaining the indication information.
  • the format of the type of information indicated in the indication information may be determined by referring to a specific application scenario.
  • 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: the RAR format in the first RAR message and/or the RAR format in the second RAR message. That is, the indication information may directly indicate the format of the first RAR message, the format of the second RAR message, the RAR format in the first RAR message, and the RAR format in the second RAR message.
  • the indication information may include one or more of the following: random access preamble related information, RAR related information, and RAR message related information.
  • the preamble information related to the random access preamble includes: 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, and random access.
  • the preamble generation information and the sequence information of the random access preamble are examples of the preamble.
  • the 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.
  • the RAR message related information includes: 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, Hybrid automatic retransmission) Request) One or more of information, repetition number information, and bundle transmission time interval information.
  • transport block size information For example, the RAR message related information includes: 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, Hybrid automatic retransmission) Request)
  • HARQ Hybrid automatic retransmission
  • the method for transmitting the random access response message may further include the following steps:
  • A1 determining one or more structures of the indication information according to a predetermined specification
  • A2. Receive signaling, and determine one or more structures of the indication information according to the received signaling; or
  • A3. Determine one or more structures of the indication information according to the implicit indication.
  • the base station needs to generate indication information, and the base station may determine the indication information according to any one of the steps A1, A2, or A3.
  • the base station first determines one or more structures of the indication information by specifying, that is, the indication information included in the first RAR message may have one or more structures.
  • the structural feature of the indication information may be a system specification, or may be an upper layer device specification of the base station, for example, a Mobile Management Entity (MME). Both the base station and the user equipment follow the pre-defined rules to determine the structure of the indication information.
  • MME Mobile Management Entity
  • Both the base station and the user equipment follow the pre-defined rules to determine the structure of the indication information.
  • the base station first receives signaling, the letter The entity from the system or the MME, the base station determines the structure of the indication information according to the received command.
  • the base station can obtain the structure of the indication information through an implicit indication, for example, the new field used by the base station in the existing information determines one or more structures of the indication information.
  • the indication information may be selected by the base station as a structure of the indication information in a plurality of configurations.
  • the method for transmitting the random access response message may further include the following steps:
  • the base station needs to determine the transport block size of the first RAR message before sending the first RAR message, and the base station may determine, according to any one of the steps B1, B2, or B3, the transport block of the first RAR message.
  • the size for example, the base station first determines the transport block size of the first RAR message by pre-determination.
  • the transport block size of the first RAR message may be a system specification or an upper layer device specification of the base station. For example, MME regulations. Both the base station and the user equipment determine the transport block size of the first RAR message in compliance with the pre-defined.
  • the base station first receives signaling, which 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 command.
  • the base station can set the transmission block size of the first RAR message by itself, and notify the peer device (such as the user equipment) after determining the transmission block size of the first RAR message, and transmit the self-determined first RAR message.
  • the block size can meet the autonomous needs of the base station, and can determine the transport block size of the first RAR message in combination with the transmission resource status of the base station itself.
  • the base station may determine the transport block size of the first RAR message in combination with the bandwidth, or determine the transport block size of the first RAR message in conjunction with the current idle state of the base station.
  • the first RAR message sent by the base station includes 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 according to the foregoing description of the indication information. 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 the indication of the second RAR message, the base station not only sends the first RAR message, but also sends Second RAR message, but the first RAR The second RAR message is transmitted independently using different transport blocks.
  • the first RAR message is included in the first transport block
  • the second RAR message is included in the second transport block
  • the first transport block and the second transport block are two different transport blocks
  • the base station transmits the first transport block first. And then transmit the second transport block.
  • independent transmission that is to say, each of the two transport blocks is sent separately to the peer device (ie, user equipment), and the separate transmission of each transport block allows the peer device to receive each one by one.
  • Transport block Different transport blocks carry different RAR messages. Different transport blocks can be transmitted independently, such as different transport blocks for independent coding and/or rate matching for independent mapping.
  • the second RAR message may not include a media aceess control (MAC) header of the RAR; or, when the second RAR message includes the MAC header of the RAR, the second RAR message
  • the random access preamble identification information may not be included in the RAR MAC header. That is, the random access preamble information is usually carried in the MAC header of the RAR.
  • the indication information included in the first RAR message may carry the random access preamble identifier information, and then, for the second RAR message, There is no need to include the RAR's MAC header.
  • Another possible 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 identifier information, thereby eliminating the second RAR message carrying the random access preamble identifier.
  • the information is such that the user equipment can obtain the random access preamble identification information in advance when receiving the indication information of the first RAR message, and can quickly determine whether it is necessary to receive the second RAR message, thereby achieving the purpose of saving power consumption of the user equipment.
  • the indication information includes a plurality of random access preamble identifiers, and one or more of the plurality of random access preambles correspond to a second RAR message.
  • the indication information includes at least two random access preamble identifiers.
  • One possible manner is that one random access preamble identifier corresponds to one second RAR message.
  • Another feasible way is that two or three random access preamble identifiers correspond to one second RAR message.
  • all random access preamble identifiers included in the indication information correspond to one second RAR message.
  • the relationship between the random access preamble identifier and the second RAR message included in the indication information satisfies a "one-to-one" or "many-to-one" relationship.
  • the indication of the second RAR message by the indication information may be implemented by the association 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, and the user equipment is prevented from detecting the control channel and detecting the second RAR message that does not match, thereby saving power consumption of the user equipment.
  • the first RAR message is sent first, where
  • the first RAR message includes indication information, and if the indication information includes an indication of the second RAR message, sending a second RAR message, where the first message is included in the first transport block, and the second RAR message is included in the second transport block
  • the first transport block and the second transport block are different transport blocks that are independently transmitted.
  • the first RAR message includes the indication information indicating the second RAR message
  • the second RAR message is also sent, and the first RAR message and the second RAR message are separately transmitted through different transport blocks, by using the first transmission.
  • the first RAR message may indicate the second RAR message that is transmitted later, and the user equipment may decide whether to receive the second RAR message after the transmission according to the first RAR message received first.
  • control channel is not required to be used to schedule the transport block, and the transport block size of the RAR message can be flexibly changed, thereby occupying less network resources, preventing the user equipment from detecting the control channel, and reducing the detection power consumption of the user equipment.
  • the method for transmitting the random access response message is described from the base station side, and then the method for transmitting the random access response message provided by the present invention is described from the peer device (user equipment) side of the base station, see FIG.
  • the method for transmitting a random access response message according to another embodiment of the present invention may include the following steps:
  • the user equipment first sends a random access preamble, and then the base station generates a 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.
  • the first RAR message is composed of indication information; or, the first RAR message includes an RAR in addition to the indication information. That is, in an implementation scenario, the first RAR message sent by the base station is equivalent to the indication information, and 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 may be, and the obtained indication information further determines whether the second RAR message needs to be received again.
  • the first RAR message sent by the base station includes: indication information and RAR, that is, the base station not only sets the indication information in the first RAR message, but also sets the RAR, and after the user equipment detects the first RAR message, The indication information and the RAR may be obtained from the first RAR message.
  • the indication information included in the first RAR message includes an identifier, where the identifier indicates a format of the information included in the RAR message, a format of the RAR message, and a format in the RAR.
  • the indication information may directly indicate the format of the information included in the RAR message, and the user equipment may determine the RAR cancellation after obtaining the indication information.
  • the format of the information contained in the message If the indication information directly indicates the format of the RAR message, the user equipment may determine the format of the RAR message after obtaining the indication information. If the indication information directly indicates the format of the RAR, the user equipment may also determine the RAR after obtaining the indication information. format. Specifically, the format of the type of information indicated in the indication information may be determined by referring to a specific application scenario.
  • the format of the RAR message is specifically: the format of the first RAR message and/or the format of the second RAR message; the format of the RAR is specifically: the RAR format and the first RAR message. / or RAR format in the second RAR message. That is, the indication information may directly indicate the format of the first RAR message, the format of the second RAR message, the RAR format in the first RAR message, and the RAR format in the second RAR message.
  • the indication information may include one or more of the following: random access preamble related information, RAR related information, and RAR message related information.
  • the indication information may include one or more of the following information: random access preamble information, random access preamble group information, time resource information used for random access preamble transmission, and frequency resource information used for random access preamble transmission.
  • Time resource information used for RAR transmission frequency resource information used for RAR transmission, generation information of random access preamble, sequence information of 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 retransmission request (HARQ) information, repetition number information, and bundle transmission time interval information.
  • the method for transmitting the random access response message may further include the following steps:
  • the user equipment needs to determine the indication information before acquiring the indication information included in the first RAR message, and the user equipment may determine the indication information according to any one of the steps C1, C2, or C3.
  • the user equipment first determines one or more structures of the indication information by specifying, 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 a system specification, or may be a base station or a user equipment upper layer device specification.
  • the MME specifies in advance. Both the base station and the user equipment follow the pre-defined rules to determine the structure of the indication information.
  • the user equipment first receives signaling, and the signaling is from the base station, and the user equipment determines the structure of the indication information according to the received instruction.
  • the user equipment can obtain the structure of the indication information through an implicit indication. For example, a new field used by the user equipment in the existing information determines one or more structures of the indication information. When the indication information is in a plurality of configurations, the user equipment may also select one of the structures as the structure of the indication information.
  • the method for transmitting the random access response message may further include the following steps:
  • the user equipment further needs to determine a transport block size of the first RAR message before acquiring the indication information included in the first RAR message, and the user equipment may determine, according to any one of the steps D1, D2, or D3.
  • the transport block size of a RAR message For example, the user equipment first determines the transport block size of the first RAR message by using a predetermined size.
  • 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 user equipment, for example, the MME specifies. Both the base station and the user equipment determine the transport block size of the first RAR message in compliance with the pre-defined.
  • the user equipment first receives signaling, and the signaling is from the base station, and the user equipment determines the transport block size of the first RAR message according to the received instruction.
  • the user equipment first obtains the indication information in the first RAR message, and according to the foregoing 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.
  • the RAR message and the second RAR message are transmitted independently using different transport blocks. The separate transmission of each transport block allows the peer device to receive each transport block one by one. Different transport blocks carry different RAR messages. Different transport blocks may be independently transmitted. 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. Determining that the second RAR message needs to be received according to the indication information, the user equipment can independently receive the second RAR message sent by the base station.
  • the MAC of the RAR may not be included in the second RAR message.
  • the random access preamble identification information may not be included in the RAR MAC header of the second RAR message. That is, the random access preamble information is usually carried in the MAC header of the RAR.
  • the indication information included in the first RAR message may carry the random access preamble identifier information, and then, for the second RAR message, It is no longer necessary to include the MAC header of the RAR.
  • Another possible 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 identifier information, thereby eliminating the second RAR message carrying the random access preamble identifier.
  • the information enables the user equipment to obtain the random access preamble identification information in advance when receiving the indication information of the first RAR message, so as to quickly determine whether it is necessary to receive (or whether there is a matching) second RAR message, thereby saving The purpose of user equipment power consumption.
  • the step 302 determines the first RAR message and/or the second RAR message according to the obtained indication information, and specifically includes the following steps:
  • the user equipment in step E1 obtains the indication information about 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 a transport block size of the second RAR message. Therefore, the user equipment can determine the transport block size of the second RAR message according to the indication information, and does not need to schedule the transport block through the control channel. After the user equipment determines the transport block size of the second RAR message, the user equipment can receive the first according to the transport block size. Two RAR messages.
  • the user equipment may determine that the base station further sends the second RAR message to the user equipment, because the user equipment may determine the transport block size of the second RAR message by using the indication information of the second RAR message included in the first RAR message. After receiving the first RAR message, the device continues to receive the second RAR message, and the RAR message can be accurately received without using the control channel for the user equipment.
  • the second RAR message may also include indication information, where the indication information about the second RAR message may be the transport block size of the second RAR message or may be used to determine the second RAR message transport block size information.
  • the step 302 determines the first RAR message and/or the second RAR message according to the obtained indication information, and specifically includes the following steps:
  • the indication information included in the first RAR message is obtained, where the indication information indicates information related to one or more second RAR messages;
  • the user equipment sends a random access preamble to the base station, and the user equipment may determine, according to the preamble information related to the random access preamble sent by the user equipment, the first RAR message corresponding to the preamble information, after obtaining the first RAR message, from the first
  • the indication information is obtained in a RAR message.
  • the indication information indicates information related to the one or more second RAR messages, and the user equipment may determine that the second RAR message needs to be received by the indication information, and the indication information has an indication function for the user equipment to receive the second RAR message, and the user equipment does not need to
  • the control channel is used to schedule the transport block, and the user equipment determines the second RAR message under the indication of the indication information.
  • 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 are determined according to the description of the present invention.
  • the message is transmitted independently by using different transport blocks.
  • the first RAR message transmitted may be used to indicate the second RAR message that is transmitted later, and the user equipment may receive the second RAR message that is transmitted after receiving the first RAR message that is received first.
  • the control block is not required to use the control channel to schedule the transport block, and the transport block size of the RAR message can be flexibly changed, thereby occupying less network resources, preventing the user equipment from detecting the control channel, and reducing the detection power consumption of the user equipment.
  • the RAR may have one or more formats.
  • the system or standard can pre-specify the format used by RAR.
  • the base station (or system) indicates the format of the RAR in an explicit or implicit manner.
  • the RAR of Format 1 indicates that the RAR does not include header (or subheader) information.
  • the header (or subheader) information may be the MAC header (or subheader) of the RAR.
  • RAR of format 2 indicates that an RAR is associated with header (or subheader) information.
  • the header (or subheader) information and the associated RAR may be contiguous in the bit positions in the packet data unit.
  • RAR of format 3 indicates that an RAR is associated with header (or subheader) information.
  • the header (or subheader) information and the associated RAR may be different in the bit position in the packet data unit. Neighboring.
  • the indication information included in the first RAR message may include an identifier.
  • 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.
  • the different structures of information reflect the different components of the information. For example, the structure of an information is that a particular bit is included in the first RAR message. As another example, the structure of an information indicates that there is no second RAR message.
  • the indication information includes a format indication of the first RAR message and/or a format indication of the second RAR message.
  • the indication information includes an RAR format indication in the first RAR message and/or an RAR format indication in the second RAR message.
  • the indication information may include related information indicating transmission of the second RAR message.
  • the RAR indication information may include: random access preamble information of the second RAR message, time resource information used for the second RAR message random access preamble transmission, frequency resource information used for the second RAR message random access preamble transmission, and RAR Time resource information used for transmission, frequency resource information used for RAR transmission, generation information of random access preamble of second RAR message, sequence information of random access preamble of second RAR message, transport block size information of second RAR message, The modulation information of the second RAR message, the coding information of the second RAR message, the power control information of the second RAR message, the priority information of the second RAR message, the RAR number information in the second RAR message, and the transmission of the second RAR message One of the block information, the timing information of the second RAR message, the repetition level information of the second RAR message, the HARQ information of the second RAR message, the repetition number information of the second RAR message, and the bundle transmission time interval
  • the preamble information of the random access is one or more of a random access preamble index, a random access preamble group index, a random access preamble group identifier, and a random access preamble identifier.
  • the time resource information used for random access preamble transmission is a time resource index used for random access preamble transmission, a time resource identifier used for random access preamble transmission, a start time resource index used for random access preamble transmission, and random access.
  • a time resource index used for random access preamble transmission is a time resource index used for random access preamble transmission
  • a time resource identifier used for random access preamble transmission is used for random access preamble transmission
  • start time resource index used for random access preamble transmission is a start time resource index used for random access preamble transmission
  • start time resource index used for random access preamble transmission is a time resource index used for random access preamble transmission
  • start time resource index used for random access preamble transmission is a start time resource index used for random access preamble transmission.
  • the frequency resource information used for random access preamble transmission is a frequency resource index used for random access preamble transmission, a frequency resource identifier used for random access preamble transmission, a starting frequency resource index used for random access preamble transmission, and a random connection.
  • the indication information includes one or more random access preamble identifiers.
  • FIG. 4b a component structure diagram of the indication information is provided in the embodiment of the present invention.
  • the indication information includes three RAPIDs as an example, and the indication information includes: RAPID1, RAPID2, and RAPID3.
  • the indication information is composed of a random access preamble identifier and a resource indication.
  • the random access preamble identifier includes one or more random access preamble identifiers.
  • the resource indication includes one or more of time resource information used for random access preamble transmission, frequency resource information used for random access preamble transmission, transport block size information, modulation and coding information, and RAR number information.
  • Figure 4-b illustrates that the first information includes three random access preamble identifiers and three resource indications.
  • the RAPID1 and the resource indication 1 indicate information of one RAR included in the second RAR message.
  • RAPID2 and resource indication 2 indicate information of another RAR included in the second RAR message.
  • the RAPID3 and the resource indication 3 indicate information of another RAR included in the second RAR message.
  • the indication information may include partially repeated or all repeated information.
  • the structure of the indication information can be indicated by repeated information.
  • the RAPID3 is repeated information, a repeated random access preamble identifier and/or a resource indication, and the repeated information indicates that the base station does not generate the second RAR message.
  • the indication information consists of a specific bit (or an empty sub-segment, or null, or not, or an applicable, or a specific field).
  • the indication information includes at least a specific bit.
  • the first information includes a specific bit and a random access preamble identifier, or the indication information includes a specific bit and a resource indication, or the first information includes a specific bit, a random access preamble identifier, and a resource indication.
  • the transport block size of the first RAR message is preset, or pre-configured, or signaled.
  • the transport block size of the first RAR message is indicated by system information. Because the transport block size of the first RAR message is preset or configured, the user equipment determines the transport block size of the first RAR message when receiving the first RAR message, thereby receiving the first RAR message.
  • the first RAR message can have one or more formats.
  • the system or standard may pre-specify the format used by the first RAR message.
  • the base station (or system) indicates the format of the first RAR message in an explicit or implicit manner.
  • the format of the first RAR message is: the first RAR message is composed of an identifier and indication information, or an identifier and an RAR.
  • the identifier consists of one or more bits, the different states of which indicate different compositions of different first RAR messages.
  • 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. If the bit status of the identifier is 1, it indicates that the first RAR message is indicated by the information. composition.
  • the first RAR message exemplifies the transmission and reception of the second RAR message, which may include only one or more RARs.
  • the second RAR message includes at least one or more RARs.
  • the transport block size can be flexible.
  • the first RAR message indicates the number of RARs included in the second RAR message.
  • the user equipment may determine the transport block size 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 pre-specified.
  • the first RAR message can directly indicate the transport block size of the second RAR message.
  • the transport block size of the second RAR message may also be predetermined. It should be noted that, because the preamble information of the random access (or included) of each RAR in the second RAR message may be indicated in the first RAR message, the RAR in the second RAR message may not include the random access. Leading information.
  • the composition of the second RAR message may be the same as the format of some of the first RAR messages exemplified above.
  • first RAR message information associated with one or more second RAR messages may be indicated.
  • the associated information can be indication information.
  • the associated information is RAPID.
  • the first information in the first RAR message includes three RAPIDs, and all three RAPIDs are associated with the same second RAR message. And each RAPID is associated with one RAR in the second RAR message.
  • the indication information in the first RAR message includes three RAPIDs, each of which is associated with a second RAR message, and each of the second RAR messages includes only one RAR.
  • the associated information may also be other RAR resource indication information.
  • the resource indication information may be: random access preamble information, random access preamble group information, time resource information of the second RAR message transmission, frequency resource information of the second RAR message transmission, number of RARs included in the second RAR message, and The transport block size of the second RAR message, the modulation mode of the second RAR message, the encoding mode of the second RAR message, and one or more of the second RAR messages.
  • the indication information of the first RAR message includes three resource indications, which are resource indication 1, resource indication 2, and resource indication 3, and each resource indication may indicate a second RAR message, each of which is The two RAR messages may include one or more RARs.
  • the indication information may not only be It includes a resource indication or a RAPID, and the indication information may further include other information than the resource indication information or the RAPID information.
  • 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 pre-configured, or signaling indication).
  • the user equipment acquires information associated with one or more second RAR messages indicated in the first RAR message according to the received first RAR message.
  • the user equipment matches the RAPID indicated by the RAR in the first RAR message. If the user equipment sends the random access preamble (or random access preamble group information) information to match the RAPID information indicated by the RAR in the first RAR message, the user equipment considers that the RAR is a random access response that the base station gives to itself. If the user equipment sends the random access preamble (or random access preamble group information) information to 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 user equipment. Random access response.
  • the indication information includes the RAPID. If the user equipment sends the random access preamble (or random access preamble group information) information to 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 included in the The second RAR message associated with the RAPID. The user equipment receives the second RAR message, and obtains 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 does not match the RAPID in the indication information, the user equipment considers that the base station does not send the random access response to the user equipment. Or, if the random access preamble (or random access preamble group information) information sent by the user equipment does not match the RAPID in the first RAR message, the user equipment considers that the base station does not send the random access response to the user equipment.
  • the user equipment acquires association information indicating the second RAR message in the first RAR message according to the indication information. And receiving, according to the acquired association information, a second RAR message, and determining, according to the received second RAR message, RAR information that is sent by the base station to the user equipment.
  • the first RAR message includes indication information, and the indication information indicates that there is no second RAR message. If the user equipment considers that the RAR in the first RAR message is not random access of the user equipment In response, the user equipment considers that the base station has not sent a random access response to itself. At this point, the user equipment can resend the random access preamble.
  • the user equipment If the user equipment considers that the RAR in the first RAR message is not a random access response of the user equipment, and the user equipment does not match in the second RAR message or the RAR message (such as the third RAR message) indicated by the second RAR message. RAPID (or RAR), the base station is considered not to send a random access response to itself. At this point, the user equipment can resend the random access preamble.
  • a base station 500 may include: a first sending module 501 and a second sending module 502, where
  • the first sending module 501 is configured to send, to the user equipment, a first RAR message, where the first RAR message includes indication information about the second RAR message;
  • the second sending module 502 is configured to send the second RAR message to the user equipment.
  • the first RAR message and the second RAR message are sent by the base station using different transport blocks.
  • the first RAR message is composed of the indication information
  • the first RAR message includes an RAR in addition to the indication information.
  • the indication information includes 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.
  • 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: an RAR format in the first RAR message and/or an RAR format in the second RAR message.
  • the indication information includes one or more of the following: random connection Information related to the preamble, information related to the RAR, and information related to the RAR message.
  • the base station 500 further includes: a first determining module 503, configured to use, before the first sending module 501 sends the first RAR message, according to the foregoing Determining one or more structures of the indication information; or receiving signaling, determining one or more structures of the indication information according to the received signaling; or determining the indication according to an implicit indication One or more structures of information.
  • a first determining module 503 configured to use, before the first sending module 501 sends the first RAR message, according to the foregoing Determining one or more structures of the indication information; or receiving signaling, determining one or more structures of the indication information according to the received signaling; or determining the indication according to an implicit indication One or more structures of information.
  • the base station 800 further includes: a second determining module 504, configured to: before the first sending module sends the first RAR message, according to a pre-defined Determining a transport block size of the first RAR message; and/or determining a transport block size of the first RAR message according to a signaling indication; and/or determining a transport block size of the first RAR message by itself, and Sending signaling indicating a transport block size of the first RAR message to the peer device.
  • a second determining module 504 configured to: before the first sending module sends the first RAR message, according to a pre-defined Determining a transport block size of the first RAR message; and/or determining a transport block size of the first RAR message according to a signaling indication; and/or determining a transport block size of the first RAR message by itself, and Sending signaling indicating a transport block size of the first RAR message to the peer device.
  • a media intervention control MAC header that may not include the RAR in the second RAR message
  • the random access preamble identification information may not be included in the RAR MAC header of the second RAR message.
  • the indication information includes a plurality of random access preamble identifiers, and one or more of the plurality of random access preambles correspond to a second RAR message.
  • the first RAR message is sent first, where the first RAR message includes indication information, and if the indication information includes an indication of the second RAR message, the second RAR message is sent, where the first message is sent. Included in the first transport block, the second RAR message is included in the second transport block, the first transport block and the second transport block being different transport blocks that are independently transmitted.
  • the first RAR message includes the indication information indicating the second RAR message
  • the second RAR message is also sent, and the first RAR message and the second RAR message are separately transmitted through different transport blocks, by using the first transmission.
  • the first RAR message may indicate the second RAR message that is transmitted later, and the user equipment may receive the second RAR message that is transmitted after receiving the first RAR message that is received first, because the control channel is not required to be used to schedule the transport block, and the RAR is
  • the transmission block size of the message can be flexibly changed, thereby occupying less network resources, preventing the user equipment from detecting the control channel, and reducing the detection power consumption of the user equipment.
  • a user equipment 600 provided by an embodiment of the present invention may include: obtaining Taking module 601, determining module 602, wherein
  • the obtaining module 601 is configured to obtain indication information included in the first RAR message.
  • a determining module 602 configured to determine, according to the obtained indication information, the first RAR message and/or the second RAR message, where the first RAR message and the second RAR message are independent using different transport blocks transmission.
  • the first RAR message is composed of the indication information
  • the first RAR message includes an RAR in addition to the indication information.
  • the indication information includes 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.
  • 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: an RAR format in the first RAR message and/or an RAR format in the second RAR message.
  • the indication information includes one or more of the following: random access preamble related information, RAR related information, and RAR message related information.
  • the determining module is further configured to: before the obtaining module acquires the indication information included in the first RAR message, determine one or more structures of the indication information according to a predetermined specification; or Receiving signaling, 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 an implicit indication.
  • the determining module is further configured to: before the obtaining module acquires the indication information included in the first RAR message, determine, according to a predetermined specification, a transmission block size of the first RAR message; or, receive And signaling, determining a transport block size of the first RAR message according to the received signaling.
  • 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; according to the determined second RAR message The transport block size receives the second RAR message.
  • a media intervention control MAC header that may not include the RAR in the second RAR message
  • the second RAR message includes a MAC header of the RAR
  • the second RAR message is The random access preamble identification information may not be included in the MAC header of the RAR.
  • the determining module 602 is specifically configured to determine, according to the sent random access preamble related preamble information, a first RAR message corresponding to the preamble information; and acquiring the first RAR message includes The indication information, wherein the indication information indicates information related to one or more second RAR messages; determining a second RAR message according to the indication information.
  • 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 are determined according to the description of the present invention.
  • the message is transmitted independently by using different transport blocks.
  • the first RAR message transmitted may be used to indicate the second RAR message that is transmitted later, and the user equipment may receive the second RAR message that is transmitted after receiving the first RAR message that is received first.
  • the control block is not required to use the control channel to schedule the transport block, and the transport block size of the RAR message can be flexibly changed, thereby occupying less network resources, preventing the user equipment from detecting the control channel, and reducing the detection power consumption of the user equipment.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores a program, and the program executes some or all of the steps described in the foregoing method embodiments.
  • the base station 700 includes:
  • the input device 701, the output device 702, the processor 703, and the memory 704 (wherein the number of processors 703 in the base station 700 may be one or more, and one processor in FIG. 7 is taken as an example).
  • 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 bus connection is taken as an example in FIG.
  • the processor 703 is configured to perform the foregoing method for transmitting a random access response RAR message corresponding to FIG. 2 .
  • the processor 703 is configured to perform the following steps:
  • the first RAR message and the second RAR message are sent by the base station using different transport blocks.
  • the first RAR message stored in the memory 704 is composed of the indication information
  • the first RAR message includes an RAR in addition to the indication information.
  • the indication information stored in the memory 704 includes an identifier, wherein the identifier indicates one of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR. Or a variety.
  • 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;
  • the format of the RAR is specifically: an RAR format in the first RAR message and/or an RAR format in the second RAR message.
  • the indication information stored in the memory 704 includes one or more of the following: random access preamble related information, RAR related information, and RAR message related information.
  • the processor 703 is further configured to perform the following steps: before sending the first RAR message,
  • One or more structures of the indication information are determined according to an implicit indication.
  • the processor 703 is further configured to perform the following steps: before sending the first RAR message,
  • the transport block size of the first RAR message is determined by itself, and signaling indicating a transport block size of the first RAR message is sent to the peer device.
  • the second RAR message stored in the memory 704 is not The media including RAR is involved in controlling the MAC header; or,
  • the random access preamble identification information is not included in the RAR MAC header of the second RAR message.
  • the indication information stored in the memory 704 includes a plurality of random access preamble identifiers, and one or more of the plurality of random access preambles correspond to a first Two RAR messages.
  • the first RAR message is sent first, where the first RAR message includes indication information, and if the indication information includes an indication of the second RAR message, the second RAR message is sent, where the first message is sent. Included in the first transport block, the second RAR message is included in the second transport block, the first transport block and the second transport block being different transport blocks that are independently transmitted.
  • the first RAR message includes the indication information indicating the second RAR message
  • the second RAR message is also sent, and the first RAR message and the second RAR message are separately transmitted through different transport blocks, by using the first transmission.
  • the first RAR message may indicate the second RAR message that is transmitted later, and the user equipment may receive the second RAR message that is transmitted after receiving the first RAR message that is received first, because the control channel is not required to be used to schedule the transport block, and the RAR is
  • the transmission block size of the message can be flexibly changed, thereby occupying less network resources, preventing the user equipment from detecting the control channel, and reducing the detection power consumption of the user equipment.
  • the user equipment 800 includes:
  • the input device 801, the output device 802, the processor 803, and the memory 804 (wherein the number of processors 803 in the user device 800 may be one or more, and one processor in FIG. 8 is taken as an example).
  • 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.
  • the processor 803 is configured to perform the foregoing method for transmitting a random access response RAR message corresponding to FIG. 3 .
  • the processor 803 is configured to perform the following steps:
  • the first RAR message stored in the memory 804 is composed of the indication information
  • the first RAR message includes an RAR in addition to the indication information.
  • the indication information stored in the memory 804 includes an identifier, wherein the identifier indicates one of a format of information included in the RAR message, a format of the RAR message, and a format of the RAR. Or a variety.
  • 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;
  • the format of the RAR is specifically: an RAR format in the first RAR message and/or an RAR format in the second RAR message.
  • the indication information stored in the memory 804 includes one or more of the following: random access preamble related information, RAR related information, and RAR message related information.
  • the processor 803 is further configured to: before acquiring the indication information included in the first RAR message,
  • One or more structures of the indication information are determined according to an implicit indication.
  • the processor 803 is further configured to: before acquiring the indication information included in the first RAR message,
  • Receiving signaling determining a transport block size of the first RAR message according to the received signaling.
  • the processor 803 is specifically configured to perform the following steps:
  • the media intervention control MAC header that does not include the RAR in the second RAR message stored in the memory 804; or
  • the second RAR message includes a MAC header of the RAR, where the second RAR message is The random access preamble identification information is not included in the MAC header of the RAR.
  • the processor 803 is specifically configured to perform the following steps:
  • 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 are determined according to the description of the present invention.
  • the message is transmitted independently by using different transport blocks.
  • the first RAR message transmitted may be used to indicate the second RAR message that is transmitted later, and the user equipment may receive the second RAR message that is transmitted after receiving the first RAR message that is received first.
  • the control block is not required to use the control channel to schedule the transport block, and the transport block size of the RAR message can be flexibly changed, thereby occupying less network resources, preventing the user equipment from detecting the control channel, and reducing the detection power consumption of the user equipment.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be Physical units can be located in one place or distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the connection relationship between the modules indicates that there is a communication connection between them, and specifically, one or more communication buses or signal lines can be realized.
  • a computer device which may be a personal computer, server, or network device, etc. performs the methods described in various embodiments of the present invention.

Abstract

一种随机接入响应消息的传输方法和基站以及用户设备,其中一种随机接入响应消息的传输方法,包括:向用户设备发送第一RAR消息,所述第一RAR消息中包含关于第二RAR消息的指示信息;向所述用户设备发送所述第二RAR消息;其中,所述第一RAR消息和所述第二RAR消息由所述基站使用不同的传输块发送。

Description

一种随机接入响应消息的传输方法和基站以及用户设备 技术领域
本发明实施例涉及通信领域,尤其涉及一种随机接入响应消息的传输方法和基站以及用户设备。
背景技术
现有的通信系统中,用户设备先接收控制信道,根据所接收的控制信道中的控制信息确定控制信道所调度的数据信道承载的传输块的大小(TBS,Transport Block Size),确定出传输块大小后才开始接收数据。例如,在长期演进(LTE,Long Term Evolution)系统中,控制信道可以是物理下行控制信道(Physical Downlink Control Channel,PDCCH)或者增强物理下行控制信道(Enhanced Physical Downlink Control Channel,EPDCCH),数据信道可以是物理下行共享数据信道(PDSCH,Physical Downlink Shared Channel),用户设备从PDCCH或EPDCCH确定出PDSCH承载的传输块的大小。因为在数据信道接收前,有控制信道指示传输块的TBS,因此传输块的TBS可以根据需要取不同的值。
现有的LTE系统中,在随机接入的场景中,用户设备先发送随机接入前导,然后接收随机接入响应消息。基站在给用户设备的随机接入响应消息中包含一个或多个随机接入响应(RAR,Random Access Response)。随机接入响应中包含了随机接入前导标识符(RAPID,Random Access Preamble IDentitfier)。
用户设备接收随机接入响应后,若随机接入响应中的RAPID所标识的随机接入前导就是UE发送的随机接入前导,则用户设备认为该随机接入响应就是基站对自己发送的随机接入前导的响应。在LTE系统中,基站在给用户设备的随机接入响应消息是通过PDSCH承载的。如前所述,用户设备需要先接收控制信道,根据所接收的控制信道中的指示获取随机接入响应消息的TBS,进而根据确定的TBS进行随机接入响应消息的接收。
对用户设备而言,可能成功接收了随机接入响应消息,但是发现没有匹配的随机接入响应。即在随机接入响应消息中,没有一个随机接入响应对应的RAPID所标识的随机接入前导是用户设备发送的随机接入前导。这样会浪费 用户设备的功耗。特别是对于低成本或低复杂的用户设备而言,浪费的功耗至关重要。
在覆盖增强下,随机接入响应消息需要很多次重复以实现可靠传输。如果随机接入响应消息的传输还是要基于控制信道调度,则用户设备需要先成功检测出控制信道,进而根据控制信道的指示检测随机接入响应消息。为了让用户设备成功接收随机接入响应消息,控制信道需要很多次重复,随机接入响应消息也需要很多次重复,从而大大增加系统的资源开销,降低了网络的资源利用率,和大大增加了用户设备的检测复杂度和功耗开销。
发明内容
本发明实施例提供了一种随机接入响应消息的传输方法和基站以及用户设备,能够在不使用控制信道调度信息传输块的情况下完成对随机接入响应消息的传输,并且占用较少的网络资源,易于用户设备的检测。
第一方面,本发明实施例提供一种在基站上随机接入响应消息的传输方法,包括:
向用户设备发送第一RAR消息,所述第一RAR消息中包含关于第二RAR消息的指示信息;
向所述用户设备发送所述第二RAR消息;
其中,所述第一RAR消息和所述第二RAR消息由所述基站使用不同的传输块发送。
结合第一方面,在第一方面的第一种可能的实现方式中,所述第一RAR消息由所述指示信息组成;或,
所述第一RAR消息除了包括所述指示信息外,还包括RAR。
结合第一方面或第一方面的第一种可能的实现方式,在第一方面的第二种可能的实现方式中,所述指示信息包括标识符,其中,所述标识符指示了RAR消息中包含的信息的格式、RAR消息的格式、RAR的格式中的至少一种。
结合第一方面的第二种可能的实现方式,在第一方面的第三种可能的实现方式中,所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第 二RAR消息中的RAR格式。
结合第一方面或第一方面的第一种可能或第二种可能或第三种可能的实现方式,在第一方面的第四种可能的实现方式中,所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
结合第一方面的第四种可能的实现方式,在第一方面的第五种可能的实现方式中,所述发送第一RAR消息之前,所述方法还包括:
根据预先规定确定所述指示信息的一种或多种结构;或者,
接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,
根据隐式指示确定所述指示信息的一种或多种结构。
结合第一方面或第一方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能的实现方式,在第一方面的第六种可能的实现方式中,所述发送第一RAR消息之前,所述方法还包括:
根据预先规定确定所述第一RAR消息的传输块大小;和/或,
根据信令指示确定所述第一RAR消息的传输块大小;和/或,
自行确定所述第一RAR消息的传输块大小,并发送指示所述第一RAR消息的传输块大小的信令给对端设备。
结合第一方面或第一方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能的实现方式,在第一方面的第七种可能的实现方式中,所述第二RAR消息中不包括RAR的媒体介入控制MAC头;或者,
当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR MAC头中不包括随机接入前导标识信息。
结合第一方面或第一方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能或第七种可能的实现方式,在第一方面的第八种可能的实现方式中,所述指示信息,包括多个随机接入前导标识,所述多个随机接入前导中的一个或几个随机接入前导对应于一个第二RAR消息。
第二方面,本发明实施例还提供一种在用户设备上随机接入响应消息的传输方法,包括:
获取第一RAR消息包含的指示信息;
根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,其中,所述第一RAR消息和所述第二RAR消息使用不同的传输块进行独立传输。
结合第二方面,在第二方面的第一种可能的实现方式中,所述第一RAR消息由所述指示信息组成;或,
所述第一RAR消息除了包括所述指示信息外,还包括RAR。
结合第二方面或第二方面的第一种可能的实现方式,在第二方面的第二种可能的实现方式中,所述指示信息包括标识符,其中,所述标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。
结合第二方面的第二种可能的实现方式,在第二方面的第三种可能的实现方式中,
所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
结合第二方面或第二方面的第一种可能或第二种可能或第三种可能的实现方式,在第二方面的第四种可能的实现方式中,
所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
结合第二方面或第二方面的第一种可能或第二种可能或第三种可能或第四种可能的实现方式,在第二方面的第五种可能的实现方式中,所述获取第一RAR消息包含的指示信息之前,所述方法还包括:
根据预先规定确定所述指示信息的一种或多种结构;或者,
接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,
根据隐式指示确定所述指示信息的一种或多种结构。
结合第二方面或第二方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能的实现方式,在第二方面的第六种可能的实现方式中,所述获取第一RAR消息包含的指示信息之前,所述方法还包括:
根据预先规定确定所述第一RAR消息的传输块大小;或者,
接收信令,根据接收的所述信令确定所述第一RAR消息的传输块大小。
结合第二方面或第二方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能的实现方式,在第二方面的第七种可能的实现方式中,所述根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,包括:
根据所述第一RAR消息中的指示信息确定所述第二RAR消息的传输块大小;
根据确定的所述第二RAR消息的传输块大小接收所述第二RAR消息。
结合第二方面或第二方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能或第七种可能的实现方式,在第二方面的第八种可能的实现方式中,所述第二RAR消息中不包括RAR的媒体介入控制MAC头;或者,
当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR的MAC头中不包括随机接入前导标识信息。
结合第二方面或第二方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能或第七种可能或第八种可能的实现方式,在第二方面的第九种可能的实现方式中,所述根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,包括:
根据所发送的随机接入前导相关的前导信息确定所述前导信息对应的第一RAR消息;
获取所述第一RAR消息包含的指示信息,其中,所述指示信息指示了一个或多个第二RAR消息相关的信息;
根据所述指示信息确定第二RAR消息。
第三方面,本发明实施例还提供一种基站,包括:
第一发送模块,用于向用户设备发送第一RAR消息,所述第一RAR消息中包含关于第二RAR消息的指示信息;
第二发送模块,用于向所述用户设备发送所述第二RAR消息;
其中,所述第一RAR消息和所述第二RAR消息由所述基站使用不同的传输块发送。
结合第三方面,在第三方面的第一种可能的实现方式中,所述第一RAR消息由所述指示信息组成;或,
所述第一RAR消息除了包括所述指示信息外,还包括RAR。
结合第三方面或第三方面的第一种可能的实现方式,在第三方面的第二种可能的实现方式中,所述指示信息包括标识符,其中,所述标识符指示了RAR消息中包含的信息的格式、RAR消息的格式、RAR的格式中的至少一种。
结合第三方面的第二种可能的实现方式,在第三方面的第三种可能的实现方式中,所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
结合第三方面或第三方面的第一种可能或第二种可能或第三种可能的实现方式,在第三方面的第四种可能的实现方式中,所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
结合第三方面的第四种可能的实现方式,在第三方面的第五种可能的实现方式中,所述基站还包括:第一确定模块,用于所述第一发送模块发送第一RAR消息之前,根据预先规定确定所述指示信息的一种或多种结构;或者,接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,根据隐式指示确定所述指示信息的一种或多种结构。
结合第三方面或第三方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能的实现方式,在第三方面的第六种可能的实现方式中,所述基站还包括:第二确定模块,用于所述第一发送模块发送第一RAR消息之前,根据预先规定确定所述第一RAR消息的传输块大小;和/或,根据信令指示确定所述第一RAR消息的传输块大小;和/或,自行确定所述第一RAR消息的传输块大小,并发送指示所述第一RAR消息的传输块大小的信令给对端设备。
结合第三方面或第三方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能的实现方式,在第三方面的第七种可能的实现方式中,所述第二RAR消息中不包括RAR的媒体介入控制MAC头; 或者,
当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR MAC头中不包括随机接入前导标识信息。
结合第三方面或第三方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能或第七种可能的实现方式,在第三方面的第八种可能的实现方式中,所述指示信息,包括多个随机接入前导标识,所述多个随机接入前导中的一个或几个随机接入前导对应于一个第二RAR消息。
第四方面,本发明实施例还提供一种用户设备,包括:
获取模块,用于获取第一RAR消息包含的指示信息;
确定模块,用于根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,其中,所述第一RAR消息和所述第二RAR消息使用不同的传输块进行独立传输。
结合第四方面,在第四方面的第一种可能的实现方式中,所述第一RAR消息由所述指示信息组成;或,
所述第一RAR消息除了包括所述指示信息外,还包括RAR。
结合第四方面或第四方面的第一种可能的实现方式,在第四方面的第二种可能的实现方式中,所述指示信息包括标识符,其中,所述标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。
结合第四方面的第二种可能的实现方式,在第四方面的第三种可能的实现方式中,
所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
结合第四方面或第四方面的第一种可能或第二种可能或第三种可能的实现方式,在第四方面的第四种可能的实现方式中,
所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
结合第四方面或第四方面的第一种可能或第二种可能或第三种可能或第四种可能的实现方式,在第四方面的第五种可能的实现方式中,所述确定模块, 还用于所述获取模块获取第一RAR消息包含的指示信息之前,根据预先规定确定所述指示信息的一种或多种结构;或者,接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,根据隐式指示确定所述指示信息的一种或多种结构。
结合第四方面或第四方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能的实现方式,在第四方面的第六种可能的实现方式中,所所述确定模块,还用于所述获取模块获取第一RAR消息包含的指示信息之前,根据预先规定确定所述第一RAR消息的传输块大小;或者,接收信令,根据接收的所述信令确定所述第一RAR消息的传输块大小。
结合第四方面或第四方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能的实现方式,在第四方面的第七种可能的实现方式中,所述确定模块,具体用于根据所述第一RAR消息中的指示信息确定所述第二RAR消息的传输块大小;根据确定的所述第二RAR消息的传输块大小接收所述第二RAR消息。
结合第四方面或第四方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能或第七种可能的实现方式,在第四方面的第八种可能的实现方式中,所述第二RAR消息中不包括RAR的媒体介入控制MAC头;或者,
当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR的MAC头中不包括随机接入前导标识信息。
结合第四方面或第四方面的第一种可能或第二种可能或第三种可能或第四种可能或第五种可能或第六种可能或第七种可能或第八种可能的实现方式,在第四方面的第九种可能的实现方式中,所述确定模块,具体用于根据所发送的随机接入前导相关的前导信息确定所述前导信息对应的第一RAR消息;获取所述第一RAR消息包含的指示信息,其中,所述指示信息指示了一个或多个第二RAR消息相关的信息;根据所述指示信息确定第二RAR消息。
从以上技术方案可以看出,本发明实施例具有以下优点:
本发明实施例中,首先发送第一RAR消息,其中,第一RAR消息包括指示信息,若指示信息包含对第二RAR消息的指示,发送第二RAR消息,其中,第一消息包含在第一传输块中,第二RAR消息包含在第二传输块中,第一传 输块和第二传输块是独立传输的不同传输块。当第一RAR消息中的指示信息对第二RAR消息做出指示的情况下,还发送了第二RAR消息,第一RAR消息和第二RAR消息通过不同的传输块独立传输。通过先传输的第一RAR消息可以对后传输的第二RAR消息进行指示,用户设备可以根据先接收的第一RAR消息来接收后传输的第二RAR消息。由于不需要使用控制信道来调度传输块,且RAR消息的传输块大小可以灵活改变,从而占用较少的网络资源,避免用户设备检测控制信道,也降低了用户设备的检测功耗。
附图说明
图1为本发明随机接入响应消息的传输方法应用在通信系统中的系统架构图;
图2为本发明实施例提供的一种在基站上随机接入响应消息的传输方法的流程方框示意图;
图3为本发明实施例提供的另一种在用户设备上随机接入响应消息的传输方法的流程方框示意图;
图4-a为本发明实施例提供的一种RAR的组成结构图;
图4-b为本发明实施例提供的一种指示信息的组成结构图;
图4-c为本发明实施例提供的一种指示信息对第二RAR消息进行指示的示意图;
图4-d为本发明实施例提供的另一种指示信息对第二RAR消息进行指示的示意图;
图4-e为本发明实施例提供的另一种指示信息对第二RAR消息进行指示的示意图;
图5-a为本发明实施例提供的一种基站的组成结构示意图;
图5-b为本发明实施例提供的另一种基站的组成结构示意图;
图5-c为本发明实施例提供的另一种基站的组成结构示意图;
图6为本发明实施例提供的一种用户设备的组成结构示意图;
图7为本发明实施例提供的另一种基站的组成结构示意图;
图8为本发明实施例提供的另一种用户设备的组成结构示意图。
具体实施方式
本发明实施例提供了一种随机接入响应消息的传输方法和基站以及用户设备,能够在不使用控制信道调度信息传输块的情况下完成对随机接入响应消息的传输,并且占用较少的网络资源,易于用户设备的检测。
为使得本发明的发明目的、特征、优点能够更加的明显和易懂,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,下面所描述的实施例仅仅是本发明一部分实施例,而非全部实施例。基于本发明中的实施例,本领域的技术人员所获得的所有其他实施例,都属于本发明保护的范围。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,这仅仅是描述本发明的实施例中对相同属性的对象在描述时所采用的区分方式。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,以便包含一系列单元的过程、方法、系统、产品或设备不必限于那些单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它单元。
首先对本发明随机接入响应消息的传输方法应用的系统架构进行简介,本发明主要应用于LTE系统或高级的长期演进(LTE-A,LTE Advanced)系统。本发明也可以应用于其它的通信系统,例如,宽带码分多址(Wideband Code Division Multiple Access,WCDMA)、时分同步码分多址(Time Division-Synchronous Code Division Multiple Access,TD-SCDMA)等系统,只要该通信系统中存在实体可以发送信息,该通信系统中存在其它实体可以接收信息即可。例如,信息是随机接入响应(Random Access Response,RAR)消息。
请参阅如图1所示,为本发明随机接入响应消息的传输方法应用在通信系统中的系统架构图,如图1所示,基站(英文名称Base station)和用户设备(UE,User Equipment)1~UE6组成一个通信系统,在该通信系统中,用户设备可称为终端,基站发送RAR消息给UE1~UE6中的一个或多个UE,基站为本发明随机接入响应消息的传输方法中的发送端设备,UE1~UE6为本发明随机接入响应消息的传输方法中的接收端设备。此外,UE4~UE6也组成一个通信系统,在该通信系统中,UE5可以作为基站的功能实现,UE5可以发送RAR消息给 UE4和UE6中的一个或多个UE。
以下分别进行详细说明。
本发明随机接入响应消息的传输方法的一个实施例,可应用于基站对随机接入响应消息的发送中,请参阅图2所示,该随机接入响应消息的传输方法,可以包括如下步骤:
201、向用户设备发送第一RAR消息,其中,第一RAR消息中包含关于第二RAR消息的指示信息。
在本发明提供的随机接入场景中,用户设备先发送随机接入前导,然后基站对接收的随机接入前导生成相应的随机接入响应消息。基站在给用户设备的随机接入响应消息中包含一个或多个随机接入响应(RAR,Random Access Response)。随机接入响应中包含了随机接入前导标识符(RAPID,Random Access Preamble IDentitfier),RAPID标识了随机接入前导。
按照现有技术,基站发送RAR消息之前,先发送控制信道调度传输块,用户设备需要先检测控制信道,这会浪费用户设备的功耗。本发明实施例中基站不再发送控制信道,而是直接发送RAR消息,但是在RAR消息中包括指示信息,通过指示信息的指示使对端设备(即用户设备)完成对RAR消息的接收。
在本发明的一些实施例中,第一RAR消息由指示信息组成;或,第一RAR消息除了包括指示信息外,还包括RAR。也就是说,在一种实现场景下,基站发送的第一RAR消息等价于指示信息,则基站发送给用户设备的第一RAR消息就相当于发送指示信息给用户设备,用户设备只需要检测指示信息即可,通过获取到的指示信息进一步确定是否还需要再接收第二RAR消息。在另一种实现场景下,基站发送的第一RAR消息包括:指示信息和RAR,即基站在第一RAR消息中不仅包括指示信息,还包括RAR,用户设备检测到第一RAR消息之后,可以从第一RAR消息中获取到指示信息以及RAR。
在本发明的一些实施例中,第一RAR消息包括的指示信息中,该指示信息包括标识符,其中,标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。也就是说,指示信息可以直接指示RAR消息包含的信息的格式,用户设备获取到该指示信息之后可以确定出RAR消息包含的信息的格式。若指示信息直接指示RAR消息的格式,用户设备获取 到该指示信息后也可以确定出RAR消息的格式。若指示信息直接指示RAR的格式,用户设备获取到该指示信息之后同样可以确定出RAR的格式。具体在指示信息中指示哪一类型的信息的格式可以参照具体的应用场景来决定。
进一步的,在本发明的一些实施例中,RAR消息的格式具体为:第一RAR消息的格式和/或第二RAR消息的格式。RAR的格式具体为:第一RAR消息中的RAR格式和/或第二RAR消息中的RAR格式。即指示信息可以直接指示第一RAR消息的格式、第二RAR消息的格式、第一RAR消息中的RAR格式、第二RAR消息中的RAR格式。
在本发明的一些实施例中,指示信息可包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。例如,随机接入前导相关的前导信息包括:随机接入前导信息、随机接入前导组信息、随机接入前导传输所用的时间资源信息、随机接入前导传输所用的频率资源信息、随机接入前导的生成信息、随机接入前导的序列信息中的一种或多种。
例如,RAR相关的信息包括:RAR传输所用的时间资源信息、RAR传输所用的频率资源信息、RAR个数信息中的一种或多种。
例如,RAR消息相关的信息包括:传输块大小信息、调制信息、编码信息、功率控制信息、优先级信息、传输块信息、定时信息、重复级别信息、混合自动重传请求(HARQ,Hybrid automatic retransmission request)信息、重复次数信息、捆绑传输时间间隔信息中的一种或多种。
在本发明的一些实施例中,步骤201发送第一RAR消息之前,本发明实施例提供的随机接入响应消息的传输方法还可以包括如下步骤:
A1、根据预先规定确定指示信息的一种或多种结构;或者,
A2、接收信令,根据接收的信令确定指示信息的一种或多种结构;或者,
A3、根据隐式指示确定指示信息的一种或多种结构。
其中,基站需要生成指示信息,基站可以按照步骤A1、或A2、或A3中的任一种方式来确定指示信息。例如基站首先通过预先规定确定出指示信息的一种或多种结构,即第一RAR消息中包括的指示信息可以有一种或者多种结构。指示信息的结构特征可以是系统规定,也可以是基站的上层设备规定,例如移动管理实体(Mobile Managenment Entity,MME)预先规定。基站和用户设备都遵照预先规定来确定指示信息的结构。又如,基站首先接收信令,该信 令来自系统或者MME等实体,基站按照接收到的指令来确定指示信息的结构。又如,基站可以通过隐含的指示得到指示信息的结构,例如基站在已有的信息中使用的新字段确定出指示信息的一种或多种结构。再如,指示信息在多种结构时可以由基站选择其中一种结构作为指示信息的结构。
在本发明的一些实施例中,步骤201发送第一RAR消息之前,本发明实施例提供的随机接入响应消息的传输方法还可以包括如下步骤:
B1、根据预先规定确定第一RAR消息的传输块大小;和/或,
B2、根据信令指示确定第一RAR消息的传输块大小;和/或,
B3、自行确定第一RAR消息的传输块大小,并发送指示第一RAR消息的传输块大小的信令给对端设备。
其中,在发送第一RAR消息之前,基站还需要确定第一RAR消息的传输块大小,则基站可以按照步骤B1、或B2、或B3中的任一种方式来确定第一RAR消息的传输块大小,例如基站首先通过预先规定确定出第一RAR消息的传输块大小。第一RAR消息的传输块大小可以是系统规定,也可以是基站的上层设备规定。例如MME规定。基站和用户设备都遵照预先规定来确定第一RAR消息的传输块大小。又如,基站首先接收信令,该信令来自系统或者MME等实体,基站按照接收到的指令来确定第一RAR消息的传输块大小。又如,基站可以自己设置第一RAR消息的传输块大小,在自行确定第一RAR消息的传输块大小后通知给对端设备(如用户设备),这种自行确定的第一RAR消息的传输块大小可以满足基站的自主需要,可以结合基站自身的传输资源状况来确定第一RAR消息的传输块大小。例如基站可以结合带宽决定第一RAR消息的传输块大小,或者结合基站当前的闲忙状况决定第一RAR消息的传输块大小。
202、向用户设备发送第二RAR消息,其中,第一RAR消息和第二RAR消息由基站使用不同的传输块发送。
在本发明实施例中,基站发送的第一RAR消息中包括指示信息,根据前述对指示信息描述,指示信息可用于指示第一RAR消息,也可以用于指示第二RAR消息。若基站已经生成第二RAR消息,则该指示信息可以指示第二RAR消息,所以在第一RAR消息中的指示信息包含对第二RAR消息的指示时,基站不仅发送第一RAR消息,还发送第二RAR消息,但是第一RAR消 息和第二RAR消息使用不同的传输块进行独立传输。例如,第一RAR消息包含在第一传输块中,第二RAR消息包含在第二传输块中,第一传输块和第二传输块是两个不同的传输块,基站先传输第一传输块,再传输第二传输块。对于每个传输块进行独立传输,也就是说两个传输块中的每个传输块是单独发送给对端设备(即用户设备)的,各个传输块的单独传输可以使对端设备逐一接收各个传输块。不同传输块携带的RAR消息不同。不同的传输块可以进行独立传输,如不同的传输块进行独立的编码和/或速率匹配,进行独立的映射。
在本发明的一些实施例中,第二RAR消息中可以不包括RAR的媒体介入控制(MAC,medium aceess control)头;或者,当第二RAR消息中包括RAR的MAC头时,第二RAR消息的RAR MAC头中可以不包括随机接入前导标识信息。也就是说,通常在RAR的MAC头中会携带随机接入前导信息,本发明中在第一RAR消息中包括的指示信息可携带该随机接入前导标识信息,那么对于第二RAR消息来说,就不需要再包括RAR的MAC头。另一种可行的实现方式是,若第二RAR消息中包括了RAR的MAC头,那么RAR MAC头中不包括随机接入前导标识信息,从而省去第二RAR消息中携带随机接入前导标识信息,使得用户设备在接收到第一RAR消息的指示信息时就可以提前获取到随机接入前导标识信息,进而可以快速确定是否有必要接收第二RAR消息,达到节省用户设备功耗的目的。
在本发明的一些实施例中,指示信息包括多个随机接入前导标识,该多个随机接入前导中的一个或几个随机接入前导对应于一个第二RAR消息。例如,在指示信息中包括有至少两个随机接入前导标识,一种可行的方式是,一个随机接入前导标识对应一个第二RAR消息。另一种可行的方式是,两个或者三个随机接入前导标识对应一个第二RAR消息。同样可行的是,指示信息中包括的所有随机接入前导标识都对应于一个第二RAR消息。所以指示信息中包括的随机接入前导标识与第二RAR消息之间满足“一对一”,或者“多对一”的关系。通过随机接入前导标识与第二RAR消息之间的关联关系,可以实现指示信息对第二RAR消息的指示。通过指示信息,用户设备可以快速确定是否需要接收第二RAR消息,避免用户设备检测控制信道和检测不匹配的第二RAR消息,节省了用户设备的功率消耗。
通过以上实施例对本发明的描述可知,首先发送第一RAR消息,其中, 第一RAR消息包括指示信息,若指示信息包含对第二RAR消息的指示,发送第二RAR消息,其中,第一消息包含在第一传输块中,第二RAR消息包含在第二传输块中,第一传输块和第二传输块是独立传输的不同传输块。当第一RAR消息中包括指示信息对第二RAR消息做出指示的情况下,还发送了第二RAR消息,第一RAR消息和第二RAR消息通过不同的传输块独立传输,通过先传输的第一RAR消息可以对后传输的第二RAR消息进行指示,用户设备可以根据先接收的第一RAR消息来决定是否接收后传输的第二RAR消息。由于不需要使用控制信道来调度传输块,且RAR消息的传输块大小可以灵活改变,从而占用较少的网络资源,避免用户设备检测控制信道,也降低了用户设备的检测功耗。
上述实施例中从基站侧描述了随机接入响应消息的传输方法,接下来从基站的对端设备(用户设备)侧进行说明本发明提供的随机接入响应消息的传输方法,请参阅图3所示,本发明另一个实施例提供的随机接入响应消息的传输方法,可以包括如下步骤:
301、获取第一RAR消息包含的指示信息。
在本发明提供的随机接入场景中,用户设备先发送随机接入前导,然后基站根据用户设备发送的随机接入前导生成第一RAR消息,并且基站在第一RAR消息中携带指示信息。
在本发明的一些实施例中,第一RAR消息由指示信息组成;或,第一RAR消息除了包括指示信息外,还包括RAR。也就是说,在一种实现场景下,基站发送的第一RAR消息等价于指示信息,则基站发送给用户设备的第一RAR消息就相当于发送指示信息给用户设备,用户设备只需要检测指示信息即可,通过获取到的指示信息进一步确定是否还需要再接收第二RAR消息。在另一种实现场景下,基站发送的第一RAR消息包括:指示信息和RAR,即基站在第一RAR消息中不仅设置有指示信息,还设置有RAR,用户设备检测到第一RAR消息之后,可以从第一RAR消息中获取到指示信息以及RAR。
在本发明的一些实施例中,第一RAR消息包括的指示信息中,该指示信息包括标识符,其中,标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。也就是说,指示信息可以直接指示RAR消息包含的信息的格式,用户设备获取到该指示信息之后可以确定出RAR消 息包含的信息的格式。若指示信息直接指示RAR消息的格式,用户设备获取到该指示信息后也可以确定出RAR消息的格式,若指示信息直接指示RAR的格式,用户设备获取到该指示信息之后同样可以确定出RAR的格式。具体在指示信息中指示哪一类型的信息的格式可以参照具体的应用场景来决定。
进一步的,在本发明的一些实施例中,RAR消息的格式具体为:第一RAR消息的格式和/或第二RAR消息的格式;RAR的格式具体为:第一RAR消息中的RAR格式和/或第二RAR消息中的RAR格式。即指示信息可以直接指示第一RAR消息的格式、第二RAR消息的格式、第一RAR消息中的RAR格式、第二RAR消息中的RAR格式。
在本发明的一些实施例中,指示信息可包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。例如,指示信息可以包括以下信息中的一种或多种:随机接入前导信息、随机接入前导组信息、随机接入前导传输所用的时间资源信息、随机接入前导传输所用的频率资源信息、RAR传输所用的时间资源信息、RAR传输所用的频率资源信息、随机接入前导的生成信息、随机接入前导的序列信息、传输块大小信息、调制信息、编码信息、功率控制信息、优先级信息、传输块信息、RAR个数信息、定时信息、重复级别信息、混合自动重传请求(HARQ,Hybrid automatic retransmission request)信息、重复次数信息、捆绑传输时间间隔信息。
在本发明的一些实施例中,步骤301获取第一RAR消息包含的指示信息之前,本发明实施例提供的随机接入响应消息的传输方法还可以包括如下步骤:
C1、根据预先规定确定指示信息的一种或多种结构;或者,
C2、接收信令,根据接收的信令确定指示信息的一种或多种结构;或者,
C3、根据隐式指示确定指示信息的一种或多种结构。
其中,在获取第一RAR消息包含的指示信息之前,用户设备需要先确定指示信息,则用户设备可以按照步骤C1、或C2、或C3中的任一种方式来确定指示信息。例如用户设备首先通过预先规定确定出指示信息的一种或多种结构,即第一RAR消息中包括的指示信息可以有一种或者多种结构。指示信息的结构可以是系统规定,也可以是基站或者用户设备的上层设备规定。例如MME预先规定。基站和用户设备都遵照预先规定来确定指示信息的结构。又 如,用户设备首先接收信令,该信令来自基站,用户设备按照接收到的指令来确定指示信息的结构。又如,用户设备可以通过隐含的指示得到指示信息的结构。例如用户设备在已有的信息中使用的新字段确定出指示信息的一种或多种结构。指示信息在多种结构时也可以由用户设备选择其中一种结构作为指示信息的结构。
在本发明的一些实施例中,步骤301获取第一RAR消息包含的指示信息之前,本发明实施例提供的随机接入响应消息的传输方法还可以包括如下步骤:
D1、根据预先规定确定第一RAR消息的传输块大小;或者,
D2、接收信令,根据接收的信令确定第一RAR消息的传输块大小。
其中,在获取第一RAR消息包含的指示信息之前,用户设备还需要确定第一RAR消息的传输块大小,则用户设备可以按照步骤D1、或D2、或D3中的任一种方式来确定第一RAR消息的传输块大小。例如用户设备首先通过预先规定确定出第一RAR消息的传输块大小,第一RAR消息的传输块大小可以是系统规定,也可以是基站或用户设备的上层设备规定,例如MME规定。基站和用户设备都遵照预先规定来确定第一RAR消息的传输块大小。又如,用户设备首先接收信令,该信令来自基站,用户设备按照接收到的指令来确定第一RAR消息的传输块大小。
302、根据获取的指示信息确定第一RAR消息和/或第二RAR消息,其中,第一RAR消息和第二RAR消息使用不同的传输块进行独立传输。
在本发明实施例中,用户设备首先获取到了第一RAR消息中包括指示信息,根据前述对指示信息描述,指示信息可用于指示第一RAR消息,也可以用于指示第二RAR消息,第一RAR消息和第二RAR消息使用不同的传输块进行独立传输。各个传输块的单独传输可以使对端设备逐一接收各个传输块。不同传输块携带的RAR消息不同。不同的传输块可以进行独立传输,如不同的传输块进行独立的译码和/或速率匹配,用户设备可以根据指示信息接收第一RAR消息,并根据指示信息确定是否接收第二RAR消息,若根据指示信息确定需要接收第二RAR消息,用户设备可以独立接收基站发送的第二RAR消息。
在本发明的一些实施例中,第二RAR消息中可以不包括RAR的MAC 头;或者,当第二RAR消息中包括RAR的MAC头时,第二RAR消息的RAR MAC头中可以不包括随机接入前导标识信息。也就是说,通常在RAR的MAC头中会携带随机接入前导信息,本发明中在第一RAR消息中包括的指示信息可携带该随机接入前导标识信息,那么对于第二RAR消息来说,就可以不需要再包括RAR的MAC头。另一种可行的实现方式是,若第二RAR消息中包括了RAR的MAC头,那么RAR MAC头中不包括随机接入前导标识信息,从而省去第二RAR消息中携带随机接入前导标识信息,使得用户设备在接收到第一RAR消息的指示信息时就可以提前获取到随机接入前导标识信息,进而可以快速确定是否有必要接收(或是否有匹配的)第二RAR消息,达到节省用户设备功耗的目的。
在本发明的一些实施例中,步骤302根据获取的指示信息确定第一RAR消息和/或第二RAR消息,具体可以包括如下步骤:
E1、根据第一RAR消息中的指示信息确定第二RAR消息的传输块大小;
E2、根据确定的第二RAR消息的传输块大小接收第二RAR消息。
其中,步骤E1中用户设备获取到第一RAR消息中包含的对第二RAR消息的指示信息。该指示信息可以指示第二RAR消息的传输块大小。该指示信息也可以指示用于计算出第二RAR消息的传输块大小的信息。从而用户设备可以根据指示信息确定出第二RAR消息的传输块大小,而不需要通过控制信道调度传输块,用户设备确定出第二RAR消息的传输块大小之后,就可以依据传输块大小接收第二RAR消息。由于用户设备可以通过第一RAR消息中包含的对第二RAR消息的指示信息确定出第二RAR消息的传输块大小,所以用户设备可以确定基站向该用户设备还发送了第二RAR消息,用户设备接收到第一RAR消息后继续接收第二RAR消息,对于用户设备而言不需要使用控制信道,就可以准确接收RAR消息。需要说明的是,在本发明另一些实施例中,第二RAR消息也可以包括指示信息,关于第二RAR消息的指示信息可以就是第二RAR消息的传输块大小或用于可确定出第二RAR消息传输块大小的某信息。
在本发明的一些实施例中,步骤302根据获取的指示信息确定第一RAR消息和/或第二RAR消息,具体可以包括如下步骤:
F1、根据所发送的随机接入前导相关的前导信息确定该前导信息对应的第 一RAR消息;
F2、获取第一RAR消息包含的指示信息,其中,指示信息指示了一个或多个第二RAR消息相关的信息;
F3、根据指示信息确定第二RAR消息。
其中,用户设备向基站发送了随机接入前导,用户设备可以根据自己发送的随机接入前导相关的前导信息确定与该前导信息对应的第一RAR消息,在得到第一RAR消息之后,从第一RAR消息中获取到指示信息。其中,指示信息指示了一个或多个第二RAR消息相关的信息,通过指示信息用户设备可以确定需要接收第二RAR消息,指示信息对用户设备接收第二RAR消息具有指示作用,用户设备不需要使用控制信道来调度传输块,用户设备在指示信息的指示下确定出第二RAR消息。
通过以上实施例对本发明的描述可知,首先获取第一RAR消息包含的指示信息,然后根据获取的指示信息确定第一RAR消息和/或第二RAR消息,其中,第一RAR消息和第二RAR消息使用不同的传输块进行独立传输,通过先传输的第一RAR消息可以对后传输的第二RAR消息进行指示,用户设备可以根据先接收的第一RAR消息来接收后传输的第二RAR消息,由于不需要使用控制信道来调度传输块,且RAR消息的传输块大小可以灵活改变,从而占用较少的网络资源,避免用户设备检测控制信道,也降低了用户设备的检测功耗。
为便于更好的理解和实施本发明实施例的上述方案,下面举例相应的应用场景来进行具体说明。
请参阅如图4-a所示,为本发明实施例提供的一种RAR的组成结构图,RAR可以有一种或多种格式。系统或者标准可以预先规定好RAR采用的格式。或者,基站(或者系统)采用显式或隐式地方法指示RAR的格式。如格式1的RAR表示RAR不包括头(或子头)信息。例如,头(或子头)信息可以是RAR的MAC头(或子头)。又如格式2的RAR表示一个RAR关联了头(或子头)信息。该头(或子头)信息和关联的RAR可以在分组数据单元中的比特位置是相邻的。又如格式3的RAR表示一个RAR关联了头(或子头)信息。该头(或子头)信息和关联的RAR可以在分组数据单元中的比特位置是不相 邻的。
在第一RAR消息包括的指示信息可以包括标识符。其中,标识符指示了RAR消息的结构(或格式)、或RAR的结构(或格式)、或RAR消息包含的信息的结构(或格式)。信息的不同结构反映了信息的不同组成。例如,一种信息的结构为第一RAR消息中包含特定比特。再如,一种信息的结构指示了没有第二RAR消息。
例如,指示信息包括第一RAR消息的格式指示和/或第二RAR消息的格式指示。再例如,所述指示信息包括第一RAR消息中的RAR格式指示和/或第二RAR消息中的RAR格式指示。
具体地,指示信息可以包括指示第二RAR消息传输的相关信息。例如,RAR指示信息可以包括:第二RAR消息的随机接入前导信息、第二RAR消息随机接入前导传输所用的时间资源信息、第二RAR消息随机接入前导传输所用的频率资源信息、RAR传输所用的时间资源信息、RAR传输所用的频率资源信息、第二RAR消息随机接入前导的生成信息、第二RAR消息随机接入前导的序列信息、第二RAR消息的传输块大小信息、第二RAR消息的调制信息、第二RAR消息的编码信息、第二RAR消息的功率控制信息、第二RAR消息的优先级信息、第二RAR消息中的RAR个数信息、第二RAR消息的传输块信息、第二RAR消息的定时信息、第二RAR消息的重复级别信息、第二RAR消息的HARQ信息、第二RAR消息的重复次数信息、第二RAR消息的捆绑传输时间间隔信息中的一种或多种。
例如,随机接入的前导信息是随机接入前导索引、随机接入前导组索引、随机接入前导组标识、随机接入前导标识中的一种或多种。
例如,随机接入前导传输所用的时间资源信息是随机接入前导传输所用的时间资源索引、随机接入前导传输所用的时间资源标识、随机接入前导传输所用的起始时间资源索引、随机接入前导传输所用的起始时间资源标识、或随机接入前导传输所用的时间资源宽度中的一种或多种。
例如,随机接入前导传输所用的频率资源信息是随机接入前导传输所用的频率资源索引、随机接入前导传输所用的频率资源标识、随机接入前导传输所用的起始频率资源索引、随机接入前导传输所用的起始频率资源标识、或随机接入前导传输所用的频率资源宽度中的一种或多种。
指示信息中的部分信息或者全部信息可以包含第一RAR消息中。例如,指示信息包括一个或多个随机接入前导标识。如图4-b所示,为本发明实施例提供的一种指示信息的组成结构图,以指示信息包括3个RAPID为例,指示信息包括:RAPID1、RAPID2、RAPID3。又如,指示信息由随机接入前导标识和资源指示构成。其中随机接入前导标识包括一个或多个随机接入前导标识。资源指示包括随机接入前导传输所用的时间资源信息、随机接入前导传输所用的频率资源信息、传输块大小信息、调制编码信息、RAR个数信息中的一种或多种。图4-b示意了第一信息包括3个随机接入前导标识和3个资源指示。其中,RAPID1和资源指示1指示了第二RAR消息中包含的一个RAR的信息。RAPID2和资源指示2指示了第二RAR消息中包含的另一个RAR的信息。RAPID3和资源指示3指示了第二RAR消息中包含的另一个RAR的信息。
再例如,指示信息中可以包含部分重复或全部重复的信息。通过重复的信息可以指示该指示信息的结构。如图4-b所示,RAPID3是重复的信息,重复的随机接入前导标识和/或资源指示,重复的信息指示了基站没有生成第二RAR消息。
例如,指示信息由特定比特(或空子段,或null,或not,或applicable,或特定字段)构成。或者,指示信息至少包括特定比特。如,第一信息包括特定比特和随机接入前导标识,或者指示信息包括特定比特和资源指示,或者第一信息包括特定比特、随机接入前导标识和资源指示。
另外,第一RAR消息的传输块大小是预先设定,或预先配置,或信令指示的。如通过系统信息指示第一RAR消息的传输块大小。因为第一RAR消息的传输块大小是预先设定或配置的,用户设备在接收第一RAR消息时就确定出了第一RAR消息的传输块大小,从而进行第一RAR消息的接收。
第一RAR消息可以有一种或多种格式。系统或者标准可以预先规定好第一RAR消息采用的格式。或者,基站(或者系统)采用显式或隐式地方法指示第一RAR消息的格式。例如,第一RAR消息的格式为:第一RAR消息由标识符和指示信息、或者由标识符和RAR构成。该标识符由一个或多个比特构成,标识符的不同状态指示了不同的第一RAR消息的不同组成。例如,标识符由一个比特构成,若标识符的比特状态为0,则表示第一RAR消息包括一个或多个RAR,若标识符的比特状态为1,则表示第一RAR消息由指示信息 组成。
前述内容介绍了第一RAR消息,接下来对第二RAR消息的发送和接收进行举例,第二RAR消息可以只包括一个或多个RAR。或者,第二RAR消息至少包括一个或多个RAR。
传输块大小可以是灵活可变的。如,第一RAR消息指示第二RAR消息包含的RAR数目。用户设备可以根据RAR数目和第二RAR消息中每个RAR的大小,确定出第二RAR消息的传输块大小。第二RAR消息中每个RAR的大小可以是第一RAR消息中指示的,或者是预先规定的。
再如,第一RAR消息可以直接指示第二RAR消息的传输块大小。当然,第二RAR消息的传输块大小也可以是预先规定的。需要说明的是,因为第一RAR消息中可以指示第二RAR消息中的每个RAR对应的(或包括的)随机接入的前导信息,因此第二RAR消息中的RAR可以不包括随机接入的前导信息。当然,第二RAR消息的构成可以与前述所例示的某种第一RAR消息的格式相同。
在一个第一RAR消息中,可以指示一个或多个第二RAR消息关联的信息。关联的信息可以是指示信息。如图4-c、4-d、4-e,关联的信息是RAPID。如图4-c所示,第一RAR消息中的第一信息包含了3个RAPID,这3个RAPID都关联同一个第二RAR消息。且每一个RAPID都与该第二RAR消息中的一个RAR相关联。再如图4-d所示,第一RAR消息中的指示信息包含了3个RAPID,每一个RAPID都关联一个第二RAR消息,且每一个第二RAR消息中只包含一个RAR。
当然,关联的信息还可以是其他的RAR资源指示信息。如资源指示信息可以是:随机接入前导信息、随机接入前导组信息、第二RAR消息传输的时间资源信息、第二RAR消息传输的频率资源信息、第二RAR消息包含的RAR数目、第二RAR消息的传输块大小、第二RAR消息的调制方式、第二RAR消息的编码方式、没有第二RAR消息中的一种或多种。如图4-e所示,第一RAR消息的指示信息包括3个资源指示,分别为资源指示1、资源指示2、资源指示3,每个资源指示可以指示一个第二RAR消息,每个第二RAR消息可以包括一个或多个RAR。
需要说明的是,图4-c、图4-d、图4-e中的其他信息是指示信息可以不只 是包括资源指示或RAPID,指示信息还可以包括除资源指示信息或RAPID信息外的其它信息。
下面给出一个具体的用户设备接收RAR信息的实施例。
用户设备接收第一RAR信息,确定第一RAR信息。
用户设备根据预先设定(或预先配置,或信令指示)确定第一RAR消息的传输块大小。用户设备根据接收的第一RAR消息获取第一RAR消息中指示的一个或多个第二RAR消息关联的信息。
如果第一RAR消息中包含了RAR,用户设备与第一RAR消息中的RAR所指示的RAPID进行匹配。如果用户设备发送随机接入前导(或随机接入前导组信息)信息与第一RAR消息中的RAR所指示的RAPID信息匹配,则该用户设备认为该RAR是基站给自己的随机接入响应。如果用户设备发送随机接入前导(或随机接入前导组信息)信息不能与第一RAR消息中的RAR所指示的RAPID信息匹配,则用户设备认为第一RAR消息中的RAR不是该用户设备的随机接入响应。
如果第一RAR消息中还包含了指示信息,且指示信息包含了RAPID。如果用户设备发送随机接入前导(或随机接入前导组信息)信息与指示信息中的RAPID匹配,则用户设备认为基站给该用户设备发送了随机接入响应,且该随机接入响应包含在所述RAPID关联的第二RAR消息中。用户设备接收第二RAR消息,根据接收的第二RAR消息,获取所述RAPID关联的RAR。若用户设备发送的随机接入前导(或随机接入前导组信息)信息与指示信息中的RAPID不匹配,则用户设备认为基站没给该用户设备发送随机接入响应。或者,若用户设备发送的随机接入前导(或随机接入前导组信息)信息与第一RAR消息中的RAPID不匹配,则用户设备认为基站没给该用户设备发送随机接入响应。
如果第一RAR消息中包含了指示信息,且指示信息没有包含RAPID。用户设备根据指示信息获取第一RAR消息中指示第二RAR消息的关联信息。根据所获取的关联信息,接收第二RAR消息,根据接收的第二RAR消息,确定基站给该用户设备的RAR信息。
如果第一RAR消息中包含了指示信息,且指示信息指示没有第二RAR消息。如果用户设备认为第一RAR消息中的RAR不是该用户设备的随机接入 响应,则用户设备认为基站没有给自己发送随机接入响应。此时用户设备可以重新发送随机接入前导。
如果用户设备认为第一RAR消息中的RAR不是该用户设备的随机接入响应,且用户设备在第二RAR消息中或第二RAR消息指示的RAR消息(如第三RAR消息)中没有匹配的RAPID(或RAR),则认为基站没有给自己发送随机接入响应。此时用户设备可以重新发送随机接入前导。
需要说明的是,对于前述的各方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本发明并不受所描述的动作顺序的限制,因为依据本发明,某些步骤可以采用其他顺序或者同时进行。其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定是本发明所必须的。
为便于更好的实施本发明实施例的上述方案,下面还提供用于实施上述方案的相关装置。
请参阅图5-a所示,本发明实施例提供的一种基站500,可以包括:第一发送模块501、第二发送模块502,其中,
第一发送模块501,用于向用户设备发送第一RAR消息,所述第一RAR消息中包含关于第二RAR消息的指示信息;
第二发送模块502,用于向所述用户设备发送所述第二RAR消息;
其中,所述第一RAR消息和所述第二RAR消息由所述基站使用不同的传输块发送。
在本发明的一些实施例中,所述第一RAR消息由所述指示信息组成;或,
所述第一RAR消息除了包括所述指示信息外,还包括RAR。
在本发明的一些实施例中,所述指示信息包括标识符,其中,所述标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。
在本发明的一些实施例中,所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
在本发明的一些实施例中,所述指示信息包括如下的一种或多种:随机接 入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
在本发明的一些实施例中,请参阅如图5-b所示,所述基站500还包括:第一确定模块503,用于所述第一发送模块501发送第一RAR消息之前,根据预先规定确定所述指示信息的一种或多种结构;或者,接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,根据隐式指示确定所述指示信息的一种或多种结构。
在本发明的一些实施例中,请参阅如图5-c所示,所述基站800还包括:第二确定模块504,用于所述第一发送模块发送第一RAR消息之前,根据预先规定确定所述第一RAR消息的传输块大小;和/或,根据信令指示确定所述第一RAR消息的传输块大小;和/或,自行确定所述第一RAR消息的传输块大小,并发送指示所述第一RAR消息的传输块大小的信令给对端设备。
在本发明的一些实施例中,所述第二RAR消息中可以不包括RAR的媒体介入控制MAC头;或者,
当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR MAC头中可以不包括随机接入前导标识信息。
在本发明的一些实施例中,所述指示信息,包括多个随机接入前导标识,所述多个随机接入前导中的一个或几个随机接入前导对应于一个第二RAR消息。
通过以上实施例对本发明的描述可知,首先发送第一RAR消息,其中,第一RAR消息包括指示信息,若指示信息包含对第二RAR消息的指示,发送第二RAR消息,其中,第一消息包含在第一传输块中,第二RAR消息包含在第二传输块中,第一传输块和第二传输块是独立传输的不同传输块。当第一RAR消息中包括指示信息对第二RAR消息做出指示的情况下,还发送了第二RAR消息,第一RAR消息和第二RAR消息通过不同的传输块独立传输,通过先传输的第一RAR消息可以对后传输的第二RAR消息进行指示,用户设备可以根据先接收的第一RAR消息来接收后传输的第二RAR消息,由于不需要使用控制信道来调度传输块,且RAR消息的传输块大小可以灵活改变,从而占用较少的网络资源,避免用户设备检测控制信道,也降低了用户设备的检测功耗。
请参阅图6所示,本发明实施例提供的一种用户设备600,可以包括:获 取模块601、确定模块602,其中,
获取模块601,用于获取第一RAR消息包含的指示信息;
确定模块602,用于根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,其中,所述第一RAR消息和所述第二RAR消息使用不同的传输块进行独立传输。
在本发明的一些实施例中,所述第一RAR消息由所述指示信息组成;或,
所述第一RAR消息除了包括所述指示信息外,还包括RAR。
在本发明的一些实施例中,所述指示信息包括标识符,其中,所述标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。
在本发明的一些实施例中,所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
在本发明的一些实施例中,所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
在本发明的一些实施例中,所述确定模块,还用于所述获取模块获取第一RAR消息包含的指示信息之前,根据预先规定确定所述指示信息的一种或多种结构;或者,接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,根据隐式指示确定所述指示信息的一种或多种结构。
在本发明的一些实施例中,所述确定模块,还用于所述获取模块获取第一RAR消息包含的指示信息之前,根据预先规定确定所述第一RAR消息的传输块大小;或者,接收信令,根据接收的所述信令确定所述第一RAR消息的传输块大小。
在本发明的一些实施例中,所述确定模块,具体用于根据所述第一RAR消息中的指示信息确定所述第二RAR消息的传输块大小;根据确定的所述第二RAR消息的传输块大小接收所述第二RAR消息。
在本发明的一些实施例中,所述第二RAR消息中可以不包括RAR的媒体介入控制MAC头;或者,
当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的 RAR的MAC头中可以不包括随机接入前导标识信息。
在本发明的一些实施例中,所述确定模块602,具体用于根据所发送的随机接入前导相关的前导信息确定所述前导信息对应的第一RAR消息;获取所述第一RAR消息包含的指示信息,其中,所述指示信息指示了一个或多个第二RAR消息相关的信息;根据所述指示信息确定第二RAR消息。
通过以上实施例对本发明的描述可知,首先获取第一RAR消息包含的指示信息,然后根据获取的指示信息确定第一RAR消息和/或第二RAR消息,其中,第一RAR消息和第二RAR消息使用不同的传输块进行独立传输,通过先传输的第一RAR消息可以对后传输的第二RAR消息进行指示,用户设备可以根据先接收的第一RAR消息来接收后传输的第二RAR消息,由于不需要使用控制信道来调度传输块,且RAR消息的传输块大小可以灵活改变,从而占用较少的网络资源,避免用户设备检测控制信道,也降低了用户设备的检测功耗。
需要说明的是,上述装置各模块/单元之间的信息交互、执行过程等内容,由于与本发明方法实施例基于同一构思,其带来的技术效果与本发明方法实施例相同,具体内容可参见本发明前述所示的方法实施例中的叙述,此处不再赘述。
本发明实施例还提供一种计算机存储介质,其中,该计算机存储介质存储有程序,该程序执行包括上述方法实施例中记载的部分或全部步骤。
接下来介绍本发明实施例提供的另一种基站,请参阅图7所示,基站700包括:
输入装置701、输出装置702、处理器703和存储器704(其中基站700中的处理器703的数量可以一个或多个,图7中以一个处理器为例)。在本发明的一些实施例中,输入装置701、输出装置702、处理器703和存储器704可通过总线或其它方式连接,其中,图7中以通过总线连接为例。
其中,处理器703,用于执行前述图2对应的随机接入响应RAR消息的传输方法。
具体的,处理器703用于执行如下步骤:
向用户设备发送第一RAR消息,所述第一RAR消息中包含关于第二RAR 消息的指示信息;
向所述用户设备发送所述第二RAR消息;
其中,所述第一RAR消息和所述第二RAR消息由所述基站使用不同的传输块发送。
在本发明的一些实施例中,存储器704中存储的所述第一RAR消息由所述指示信息组成;或,
所述第一RAR消息除了包括所述指示信息外,还包括RAR。
在本发明的一些实施例中,存储器704中存储的所述指示信息包括标识符,其中,所述标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。
在本发明的一些实施例中,存储器704中存储的所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
在本发明的一些实施例中,存储器704中存储的所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
在本发明的一些实施例中,处理器703还用于执行如下步骤:发送第一RAR消息之前,
根据预先规定确定所述指示信息的一种或多种结构;或者,
接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,
根据隐式指示确定所述指示信息的一种或多种结构。
在本发明的一些实施例中,处理器703还用于执行如下步骤:发送第一RAR消息之前,
根据预先规定确定所述第一RAR消息的传输块大小;和/或,
根据信令指示确定所述第一RAR消息的传输块大小;和/或,
自行确定所述第一RAR消息的传输块大小,并发送指示所述第一RAR消息的传输块大小的信令给对端设备。
在本发明的一些实施例中,存储器704中存储的所述第二RAR消息中不 包括RAR的媒体介入控制MAC头;或者,
当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR MAC头中不包括随机接入前导标识信息。
在本发明的一些实施例中,存储器704中存储的所述指示信息,包括多个随机接入前导标识,所述多个随机接入前导中的一个或几个随机接入前导对应于一个第二RAR消息。
通过以上实施例对本发明的描述可知,首先发送第一RAR消息,其中,第一RAR消息包括指示信息,若指示信息包含对第二RAR消息的指示,发送第二RAR消息,其中,第一消息包含在第一传输块中,第二RAR消息包含在第二传输块中,第一传输块和第二传输块是独立传输的不同传输块。当第一RAR消息中包括指示信息对第二RAR消息做出指示的情况下,还发送了第二RAR消息,第一RAR消息和第二RAR消息通过不同的传输块独立传输,通过先传输的第一RAR消息可以对后传输的第二RAR消息进行指示,用户设备可以根据先接收的第一RAR消息来接收后传输的第二RAR消息,由于不需要使用控制信道来调度传输块,且RAR消息的传输块大小可以灵活改变,从而占用较少的网络资源,避免用户设备检测控制信道,也降低了用户设备的检测功耗。
接下来介绍本发明实施例提供的另一种用户设备,请参阅图8所示,用户设备800包括:
输入装置801、输出装置802、处理器803和存储器804(其中用户设备800中的处理器803的数量可以一个或多个,图8中以一个处理器为例)。在本发明的一些实施例中,输入装置801、输出装置802、处理器803和存储器804可通过总线或其它方式连接,其中,图8中以通过总线连接为例。
其中,处理器803,用于执行前述图3对应的随机接入响应RAR消息的传输方法。
具体的,处理器803,用于执行如下步骤:
获取第一RAR消息包含的指示信息;
根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,其中,所述第一RAR消息和所述第二RAR消息使用不同的传输块进行独立传输。
在本发明的一些实施例中,存储器804中存储的所述第一RAR消息由所述指示信息组成;或,
所述第一RAR消息除了包括所述指示信息外,还包括RAR。
在本发明的一些实施例中,存储器804中存储的所述指示信息包括标识符,其中,所述标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。
在本发明的一些实施例中,存储器804中存储的所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
在本发明的一些实施例中,存储器804中存储的所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
在本发明的一些实施例中,处理器803还用于执行如下步骤:获取第一RAR消息包含的指示信息之前,
根据预先规定确定所述指示信息的一种或多种结构;或者,
接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,
根据隐式指示确定所述指示信息的一种或多种结构。
在本发明的一些实施例中,处理器803还用于执行如下步骤:获取第一RAR消息包含的指示信息之前,
根据预先规定确定所述第一RAR消息的传输块大小;或者,
接收信令,根据接收的所述信令确定所述第一RAR消息的传输块大小。
在本发明的一些实施例中,处理器803具体用于执行如下步骤:
根据所述第一RAR消息中的指示信息确定所述第二RAR消息的传输块大小;
根据确定的所述第二RAR消息的传输块大小接收所述第二RAR消息。
在本发明的一些实施例中,存储器804中存储的所述第二RAR消息中不包括RAR的媒体介入控制MAC头;或者,
当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的 RAR的MAC头中不包括随机接入前导标识信息。
在本发明的一些实施例中,处理器803具体用于执行如下步骤:
根据所发送的随机接入前导相关的前导信息确定所述前导信息对应的第一RAR消息;
获取所述第一RAR消息包含的指示信息,其中,所述指示信息指示了一个或多个第二RAR消息相关的信息;
根据所述指示信息确定第二RAR消息。
通过以上实施例对本发明的描述可知,首先获取第一RAR消息包含的指示信息,然后根据获取的指示信息确定第一RAR消息和/或第二RAR消息,其中,第一RAR消息和第二RAR消息使用不同的传输块进行独立传输,通过先传输的第一RAR消息可以对后传输的第二RAR消息进行指示,用户设备可以根据先接收的第一RAR消息来接收后传输的第二RAR消息,由于不需要使用控制信道来调度传输块,且RAR消息的传输块大小可以灵活改变,从而占用较少的网络资源,避免用户设备检测控制信道,也降低了用户设备的检测功耗。
另外需说明的是,以上所描述的装置实施例仅仅是示意性的,其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。另外,本发明提供的装置实施例附图中,模块之间的连接关系表示它们之间具有通信连接,具体可以实现为一条或多条通信总线或信号线。本领域普通技术人员在不付出创造性劳动的情况下,即可以理解并实施。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件的方式来实现,当然也可以通过专用硬件包括专用集成电路、专用CPU、专用存储器、专用元器件等来实现。一般情况下,凡由计算机程序完成的功能都可以很容易地用相应的硬件来实现,而且,用来实现同一功能的具体硬件结构也可以是多种多样的,例如模拟电路、数字电路或专用电路等。但是,对本发明而言更多情况下软件程序实现是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在可读取的存储 介质中,如计算机的软盘,U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述的方法。
综上所述,以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照上述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对上述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (38)

  1. 一种在基站上随机接入响应RAR消息的传输方法,其特征在于,包括:
    向用户设备发送第一RAR消息,所述第一RAR消息中包含关于第二RAR消息的指示信息;
    向所述用户设备发送所述第二RAR消息;
    其中,所述第一RAR消息和所述第二RAR消息由所述基站使用不同的传输块发送。
  2. 根据权利要求1所述的方法,其特征在于,所述第一RAR消息由所述指示信息组成;或,
    所述第一RAR消息除了包括所述指示信息外,还包括RAR。
  3. 根据权利要求1-2中任一项所述的方法,其特征在于,所述指示信息包括标识符,其中,所述标识符指示了RAR消息中包含的信息的格式、RAR消息的格式、RAR的格式中的至少一种。
  4. 根据权利要求3所述的方法,其特征在于,所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
    所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
  5. 根据权利要求1-4中任一项所述的方法,其特征在于,所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
  6. 根据权利要求5所述的方法,其特征在于,所述发送第一RAR消息之前,所述方法还包括:
    根据预先规定确定所述指示信息的一种或多种结构;或者,
    接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,
    根据隐式指示确定所述指示信息的一种或多种结构。
  7. 根据权利要求1-6中任一项所述的方法,其特征在于,所述发送第一RAR消息之前,所述方法还包括:
    根据预先规定确定所述第一RAR消息的传输块大小;和/或,
    根据信令指示确定所述第一RAR消息的传输块大小;和/或,
    自行确定所述第一RAR消息的传输块大小,并发送指示所述第一RAR消息的传输块大小的信令给对端设备。
  8. 根据权利要求1-7中任一项所述的方法,其特征在于,所述第二RAR消息中不包括RAR的媒体介入控制MAC头;或者,
    当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR MAC头中不包括随机接入前导标识信息。
  9. 根据权利要求1-8中任一项所述的方法,其特征在于,所述指示信息,包括多个随机接入前导标识,所述多个随机接入前导中的一个或几个随机接入前导对应于一个第二RAR消息。
  10. 一种在用户设备上随机接入响应RAR消息的传输方法,其特征在于,包括:
    获取第一RAR消息包含的指示信息;
    根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,其中,所述第一RAR消息和所述第二RAR消息使用不同的传输块进行独立传输。
  11. 根据权利要求10所述的方法,其特征在于,所述第一RAR消息由所述指示信息组成;或,
    所述第一RAR消息除了包括所述指示信息外,还包括RAR。
  12. 根据权利要求10-11中任一项所述的方法,其特征在于,所述指示信息包括标识符,其中,所述标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。
  13. 根据权利要求12所述的方法,其特征在于,
    所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
    所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
  14. 根据权利要求10-13中任一项所述的方法,其特征在于,
    所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
  15. 根据权利要求10-14中任一项所述的方法,其特征在于,所述获取第 一RAR消息包含的指示信息之前,所述方法还包括:
    根据预先规定确定所述指示信息的一种或多种结构;或者,
    接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,
    根据隐式指示确定所述指示信息的一种或多种结构。
  16. 根据权利要求10-15中任一项所述的方法,其特征在于,所述获取第一RAR消息包含的指示信息之前,所述方法还包括:
    根据预先规定确定所述第一RAR消息的传输块大小;或者,
    接收信令,根据接收的所述信令确定所述第一RAR消息的传输块大小。
  17. 根据权利要求10-16中任一项所述的方法,其特征在于,所述根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,包括:
    根据所述第一RAR消息中的指示信息确定所述第二RAR消息的传输块大小;
    根据确定的所述第二RAR消息的传输块大小接收所述第二RAR消息。
  18. 根据权利要求10-17中任一项所述的方法,其特征在于,所述第二RAR消息中不包括RAR的媒体介入控制MAC头;或者,
    当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR的MAC头中不包括随机接入前导标识信息。
  19. 根据权利要求10-18中任一项所述的方法,其特征在于,所述根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,包括:
    根据所发送的随机接入前导相关的前导信息确定所述前导信息对应的第一RAR消息;
    获取所述第一RAR消息包含的指示信息,其中,所述指示信息指示了一个或多个第二RAR消息相关的信息;
    根据所述指示信息确定第二RAR消息。
  20. 一种基站,其特征在于,包括:
    第一发送模块,用于发送第一RAR消息,其中,所述第一RAR消息包括指示信息;
    第二发送模块,用于若所述指示信息包含对第二RAR消息的指示,发送所述第二RAR消息,其中,所述第一RAR消息和所述第二RAR消息使用不 同的传输块进行独立传输。
  21. 根据权利要求20所述的基站,其特征在于,所述第一RAR消息由所述指示信息组成;或,
    所述第一RAR消息除了包括所述指示信息外,还包括RAR。
  22. 根据权利要求20-21中任一项所述的基站,其特征在于,所述指示信息包括标识符,其中,所述标识符指示了RAR消息中包含的信息的格式、RAR消息的格式、RAR的格式中的至少一种。
  23. 根据权利要求22所述的基站,其特征在于,所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
    所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
  24. 根据权利要求20-23中任一项所述的基站,其特征在于,所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
  25. 根据权利要求24所述的基站,其特征在于,所述基站还包括:第一确定模块,用于所述第一发送模块发送第一RAR消息之前,根据预先规定确定所述指示信息的一种或多种结构;或者,接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,根据隐式指示确定所述指示信息的一种或多种结构。
  26. 根据权利要求21-25中任一项所述的基站,其特征在于,所述基站还包括:第二确定模块,用于所述第一发送模块发送第一RAR消息之前,根据预先规定确定所述第一RAR消息的传输块大小;和/或,根据信令指示确定所述第一RAR消息的传输块大小;和/或,自行确定所述第一RAR消息的传输块大小,并发送指示所述第一RAR消息的传输块大小的信令给对端设备。
  27. 根据权利要求21-26中任一项所述的基站,其特征在于,所述第二RAR消息中不包括RAR的媒体介入控制MAC头;或者,
    当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR MAC头中不包括随机接入前导标识信息。
  28. 根据权利要求21-27中任一项所述的基站,其特征在于,所述指示信息,包括多个随机接入前导标识,所述多个随机接入前导中的一个或几个随机 接入前导对应于一个第二RAR消息。
  29. 一种用户设备,其特征在于,包括:
    获取模块,用于获取第一RAR消息包含的指示信息;
    确定模块,用于根据获取的所述指示信息确定所述第一RAR消息和/或第二RAR消息,其中,所述第一RAR消息和所述第二RAR消息使用不同的传输块进行独立传输。
  30. 根据权利要求29所述的用户设备,其特征在于,所述第一RAR消息由所述指示信息组成;或,
    所述第一RAR消息除了包括所述指示信息外,还包括RAR。
  31. 根据权利要求29-30中任一项所述的用户设备,其特征在于,所述指示信息包括标识符,其中,所述标识符指示了RAR消息包含的信息的格式、RAR消息的格式、RAR的格式中的一种或多种。
  32. 根据权利要求31所述的用户设备,其特征在于,
    所述RAR消息的格式具体为:所述第一RAR消息的格式和/或所述第二RAR消息的格式;
    所述RAR的格式具体为:所述第一RAR消息中的RAR格式和/或所述第二RAR消息中的RAR格式。
  33. 根据权利要求29-32中任一项所述的用户设备,其特征在于,
    所述指示信息包括如下的一种或多种:随机接入前导相关的信息、RAR相关的信息、RAR消息相关的信息。
  34. 根据权利要求39-33中任一项所述的用户设备,其特征在于,所述确定模块,还用于所述获取模块获取第一RAR消息包含的指示信息之前,根据预先规定确定所述指示信息的一种或多种结构;或者,接收信令,根据接收的所述信令确定所述指示信息的一种或多种结构;或者,根据隐式指示确定所述指示信息的一种或多种结构。
  35. 根据权利要求29-34中任一项所述的用户设备,其特征在于,所所述确定模块,还用于所述获取模块获取第一RAR消息包含的指示信息之前,根据预先规定确定所述第一RAR消息的传输块大小;或者,接收信令,根据接收的所述信令确定所述第一RAR消息的传输块大小。
  36. 根据权利要求29-35中任一项所述的用户设备,其特征在于,所述确 定模块,具体用于根据所述第一RAR消息中的指示信息确定所述第二RAR消息的传输块大小;根据确定的所述第二RAR消息的传输块大小接收所述第二RAR消息。
  37. 根据权利要求29-36中任一项所述的用户设备,其特征在于,所述第二RAR消息中不包括RAR的媒体介入控制MAC头;或者,
    当所述第二RAR消息中包括RAR的MAC头时,所述第二RAR消息的RAR的MAC头中不包括随机接入前导标识信息。
  38. 根据权利要求29-37中任一项所述的用户设备,其特征在于,所述确定模块,具体用于根据所发送的随机接入前导相关的前导信息确定所述前导信息对应的第一RAR消息;获取所述第一RAR消息包含的指示信息,其中,所述指示信息指示了一个或多个第二RAR消息相关的信息;根据所述指示信息确定第二RAR消息。
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