WO2021159907A1 - 一种信息传输方法、基站及终端 - Google Patents

一种信息传输方法、基站及终端 Download PDF

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Publication number
WO2021159907A1
WO2021159907A1 PCT/CN2021/071444 CN2021071444W WO2021159907A1 WO 2021159907 A1 WO2021159907 A1 WO 2021159907A1 CN 2021071444 W CN2021071444 W CN 2021071444W WO 2021159907 A1 WO2021159907 A1 WO 2021159907A1
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Prior art keywords
mac
subpdu
combination
mac subpdu
bits
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PCT/CN2021/071444
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English (en)
French (fr)
Inventor
曾二林
傅婧
梁靖
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to an information transmission method, base station and terminal.
  • a new radio resource control (Radio Resource Control, RRC) state is defined in the New Radio (NR) network: the RRC inactive (Inactive) state.
  • a node in the radio access network can send an RRC Release (Release) message carrying a SuspendConfig (SuspendConfig) to a terminal in the RRC connected state to instruct it to enter the RRC inactive state.
  • the node is the anchor node of the terminal, and the context information of the terminal is stored.
  • the above RRC Release message also includes radio access network notification area (RAN Notification Area, RNA) configuration information, and the terminal does not need to communicate with the network side when it moves within the configured RNA range.
  • RNA radio access network notification area
  • RLC Radio Link Control
  • RLC AM Radio Link Control
  • the embodiments of the present disclosure provide an information transmission method, a base station, and a terminal to improve resource usage efficiency.
  • the embodiments of the present disclosure provide an information transmission method, including:
  • the MAC subheader of SuccessRAR carries the first MAC SubPDU if it exists afterwards Indication information of the second MAC SubPDU corresponding to at least one terminal, where the second MAC SubPDU is a MAC SubPDU including SuccessRAR or a media access control service data unit MAC SDU.
  • the embodiments of the present disclosure provide an information transmission method, including:
  • the base station receives the random access response MsgB message sent by the base station, where when the first media access control subprotocol data unit MAC SubPDU in the MsgB message contains a successful response SuccessRAR, the MAC subheader of SuccessRAR carries the first MAC SubPDU.
  • the embodiment of the present disclosure provides an information transmission device, including:
  • the sending module is used to send a random access response MsgB message to the terminal, where when the first media access control subprotocol data unit MAC SubPDU in the MsgB message contains a successful response SuccessRAR, the MAC subheader of SuccessRAR carries the first Whether there is indication information of a second MAC SubPDU corresponding to at least one terminal after the MAC SubPDU, the second MAC SubPDU is a MAC SubPDU including SuccessRAR or a media access control service data unit MAC SDU.
  • the embodiment of the present disclosure provides an information transmission device, including:
  • the receiving module is used to receive the random access response MsgB message sent by the base station.
  • the MAC subheader of SuccessRAR carries the first Whether there is indication information of a second MAC SubPDU corresponding to at least one terminal after a MAC SubPDU, the second MAC SubPDU is a MAC SubPDU including SuccessRAR or MAC SDU of the media access control service data unit.
  • the embodiment of the present disclosure provides a base station, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the processor implements the following steps when the program is executed:
  • the MAC subheader of SuccessRAR carries the first MAC SubPDU if it exists afterwards Indication information of the second MAC SubPDU corresponding to at least one terminal, where the second MAC SubPDU is a MAC SubPDU including SuccessRAR or a media access control service data unit MAC SDU.
  • the embodiments of the present disclosure provide a terminal including a memory, a processor, and a computer program stored on the memory and capable of running on the processor, and the processor implements the following steps when the program is executed:
  • the base station receives the random access response MsgB message sent by the base station, where when the first media access control subprotocol data unit MAC SubPDU in the MsgB message contains a successful response SuccessRAR, the MAC subheader of SuccessRAR carries the first MAC SubPDU.
  • the embodiments of the present disclosure provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method are realized.
  • the information transmission method, base station, and terminal provided by the embodiments of the present disclosure send an MsgB message to the terminal, and when the first MAC SubPDU in the MsgB message contains SuccessRAR, the MAC subheader of SuccessRAR carries the first MAC SubPDU.
  • the second MAC SubPDU is a MAC SubPDU containing SuccessRAR or MAC SDU, so that the MsgB message can include SuccessRARs corresponding to multiple terminals and can include multiple terminals corresponding
  • the MAC SDU can contain the RRC message or the RLC ACK message, so that the RLC ACK messages of multiple terminals can be multiplexed into one MsgB message, avoiding the need to feed back RLC ACK messages to multiple terminals , The need to send MsgB messages to each terminal separately, which improves the efficiency of resource usage.
  • FIG. 1 is a flow chart of the steps of the information transmission method on the base station side in an embodiment of the disclosure
  • FIG. 2 is a schematic diagram of the structure of the MAC subheader in an embodiment of the disclosure
  • Figure 3 is one of the schematic diagrams of MsgB in an embodiment of the disclosure.
  • FIG. 4 is the second schematic diagram of MsgB in an embodiment of the disclosure.
  • FIG. 5 is the third schematic diagram of MsgB in an embodiment of the disclosure.
  • FIG. 6 is the fourth schematic diagram of MsgB in an embodiment of the disclosure.
  • FIG. 7 is a flow chart of the steps of the information transmission method on the terminal side in an embodiment of the disclosure.
  • FIG. 8 is a block diagram of a module of an information transmission device on the side of a base station in an embodiment of the disclosure
  • FIG. 9 is a block diagram of a module of an information transmission device on the side of a base station in an embodiment of the disclosure.
  • FIG. 10 is a schematic structural diagram of a base station in an embodiment of the disclosure.
  • FIG. 11 is a schematic structural diagram of a terminal in an embodiment of the disclosure.
  • 2-step RACH includes two steps: the first step is that the user sends MsgA to the network, and the second step is that the network sends a random access response (ie, MsgB) to the user.
  • MsgA generally contains a RACH sequence and a physical uplink shared channel (PhysicalUplinkSharedChannel, PUSCH) data transmission;
  • MsgB contains the random access response sent by the base station to one or more users, which may be a corresponding fallback response to a certain user (Fallback Random-Access Response, Fallback RAR), Success RAR and Media Access Control (Media Access Control, MAC) Service Data Unit (SDU); if it is MAC SDU, it usually appears with Success RAR.
  • Fallback RAR Fallback Random-Access Response
  • MAC Media Access Control
  • the basic process can be that the user sends MsgA to the base station, and MsgA includes a RACH sequence and a PUSCH data transmission.
  • the PUSCH can further carry the user's RRC message and small data packet; when the base station receives the user's MsgA, it will send the user a response message MsgB.
  • MsgB may contain other RRC messages and RLC ACK information for the above small data packets; of course, if the base station cannot receive MsgA or part of MsgA correctly, the base station may request the user to retransmit or use other processes to send small data. .
  • the MsgB contains multiple users' information, it can only target one user at most, including its SuccessRAR and other MAC SDUs of the user. This leads to the current situation.
  • the user's MAC SDU the source of this restriction is the limitation of the existing mechanism MsgB format design, that is, a header field of SuccessRAR is used to indicate "whether the user's MAC SDU is also included in the MsgB". If it is, the MAC SDU immediately follows SuccessRAR and is located at the end of the MsgB message.
  • FIG. 1 it is a flowchart of the steps of the information transmission method on the base station side in an embodiment of the present disclosure.
  • the method includes the following steps:
  • Step 101 Send a random access response MsgB message to the terminal.
  • the first media access control sub-protocol data unit (MAC SubPDU) in the MsgB message contains a success response (SuccessRAR)
  • the MAC subheader of SuccessRAR carries After the first MAC SubPDU, there is at least one terminal corresponding to the indication information of the second MAC SubPDU; specifically, the second MAC SubPDU is a MAC SubPDU containing SuccessRAR or MAC SDU.
  • the MsgB message can include multiple terminal information.
  • the corresponding SuccessRAR can contain the MAC SDUs corresponding to multiple terminals.
  • the RRC message or RLC ACK message can be included, so that the RLC ACK messages of multiple terminals can be multiplexed into one MsgB message, which avoids When the RLC ACK message needs to be fed back to multiple terminals, the MsgB message needs to be sent to each terminal separately, which improves resource usage efficiency.
  • the MAC subheader of SuccessRAR includes N identification bits and M reserved bits; among them, when the value combination of the M reserved bits is the first combination, the terminal is instructed to follow the preset protocol Only the information of N identification bits is parsed; when the value combination of M reserved bits is the second combination, the terminal is instructed to parse the information of all bits in the MAC subheader; N and M are both positive and greater than 1. Integer.
  • FIG. 2 is a schematic diagram of the MAC subheader of SuccessRAR in this embodiment.
  • the value of N and M can be 4, that is, the MAC subheader includes 4 identification bits and 4 reserved bits, and the 4 identification bits are the E, T1, T2, and S fields shown in Figure 2 respectively. Bits, the 4 reserved bits are the 4 R field bits shown in Figure 2.
  • the terminal can ignore the R bit at this time, and only interpret the information of the E, T1, T2, and S field bits;
  • the second combination can be a non-all-zero combination, at this time instruct the terminal not to ignore the R bit, and need to jointly interpret E and T1
  • the bits in the T2 and S fields indicate that the terminal parses the information of all bits in the MAC subheader, and judges the subsequent inclusion content of the Success RAR in the MsgB.
  • the preset protocol may be an existing standardized protocol. The following explains the interpretation of the E, T1, T2, and S field bits in the preset protocol:
  • the Extension field is a flag indicating if the MAC subPDU including this MAC subheader is the last MAC subPDU (other than MAC subPDU for MAC SDU) or not in the MAC PDU.
  • the E field is set to "1" to indicate least another MAC subPDU (other than MAC subPDU for MAC SDU) follows.
  • the E field is set to "0" to indicate that the MAC subPDU including this MAC subheader is the last MAC subheader is the last MAC subheader is the last MAC subPDU (other than MAC subPDU) in for the MAC SDU MAC PDU.
  • T1 The T1 field is a flag indicating whether the MAC subheader contains a Random Access Preamble ID or T2.
  • the T1 field is set to "1" to Indicate the presence of a Random Access Preamble API (The Header API Random ID)
  • T1 field is set to "0" to indicate the presence of T2 field in the subheader.
  • the T2 field is a flag indicating whether the MAC subheader contains a Backoff Indicator (BI) or a MAC SDU indicator (S).
  • the T2 field is set to "0" to indicate the subfield in the Backoff of the subfield .
  • the T2 field is set to "1" to indicate the presence of the S field in the subheader.
  • This field indicators whether MAC subPDU(s) for MAC SDU'follow the MAC subPDU including this MAC subheader or not;
  • the S field is set to "1" to indicate the presence of MAC subPDU(s) for MAC SDU' .
  • the S field is set to "0" to indicate absence of'MAC subPDU(s) for MAC SDU.
  • the value combination of the M reserved bits is the first combination, it indicates that there is no second MAC SubPDU containing Success RAR corresponding to other terminals after the first MAC SubPDU.
  • the value combination is the first combination, it indicates that there is no second MAC SubPDU containing Success RAR corresponding to other terminals after the first MAC SubPDU, that is, at this time, there may be a MAC SDU after the first MAC SubPDU, but it does not exist.
  • MAC SubPDU corresponding to other terminals the transmission can be carried out according to the original MsgB design.
  • the value combination of R bits is the first A combination can be all 0, that is, it indicates that there is no second MAC SubPDU containing SuccessRAR corresponding to other terminals after the first MAC SubPDU, and only the identification bit can be interpreted.
  • the terminal interprets the identification bits in the MAC subheader according to the preset protocol; of course, at this time, the SuccessRAR in the first MAC SubPDU is the last SuccessRAR in the MsgB message.
  • the terminal can directly ignore the R bit; if the terminal supports the method in this embodiment, since the value combination of the R bit is the first combination, then The terminal will also determine what content is contained in the corresponding MAC SubPDU according to the preset protocol according to the combination of E/T1/T2/S and other bits, or whether there is any subsequent MAC SubPDU (MAC SubPDU containing random access response, or MAC SubPDU containing random access response). MAC SubPDU of SDU).
  • the information based on all the bits in the MAC subheader indicates that there is a third MAC SubPDU including the MAC SDU after the first MAC SubPDU, and indicates the first MAC Whether there is a second MAC SubPDU containing Success RAR after the SubPDU.
  • first MAC SubPDU and the third MAC SubPDU are MAC SubPDUs corresponding to the same terminal, that is, the third MAC SubPDU adjacently follows the first MAC SubPDU.
  • the second combination may be a non-all-zero combination; the information of all bits may be the numerical combination information of all bits.
  • the terminal can parse the information of all the bits in the MAC subheader. In this case, it can indicate the first MAC SubPDU based on the information of all the bits in the MAC subheader. After that, there is a third MAC SubPDU including the MAC SDU, and it indicates whether there is a second MAC SubPDU including the Success RAR after the first MAC SubPDU.
  • the information based on all bits in the MAC subheader indicates that there is a third MAC SubPDU including a MAC SDU after the first MAC SubPDU, and indicates whether there is a second MAC SubPDU including a Success RAR after the first MAC SubPDU
  • the numerical combination of all the bits in the MAC subheader is the third combination, it indicates that there is a third MAC SubPDU that includes MAC SDU after the first MAC SubPDU, and that there is at least one second MAC SubPDU that includes Success RAR after the first MAC SubPDU.
  • Two MAC SubPDU when the combination of all the bits in the MAC subheader is the fourth combination, it indicates that there is a third MAC SubPDU that includes MAC SDU after the first MAC SubPDU, and that there is no Success RAR after the first MAC SubPDU.
  • the second MAC SubPDU when the combination of all the bits in the MAC subheader is the fourth combination, it indicates that there is a third MAC SubPDU that includes MAC SDU after the first MAC SubPDU, and that there is no Success RAR after the first MAC SubPDU.
  • MsgB includes BI SubPDU (Backoff indicator, existing mechanism), FallbackRAR corresponding to a terminal, SuccessRAR+MAC SDUs (2) of the first terminal, SuccessRAR+MAC SDU (1) of the second terminal.
  • BI SubPDU Backoff indicator, existing mechanism
  • the first terminal is taken as an example.
  • the first terminal is the first terminal in the MsgB that has both SuccessRAR and MAC SDU.
  • the terminal analyzes all the bit information jointly, that is, the combination [0,0,0,1,1,0,1,0] can be used to indicate that MAC SubPDU3 exists after There is a MAC SubPDU containing a MAC SDU, and there is at least one MAC SubPDU containing a Success RAR.
  • the second terminal is the second terminal in MsgB that has both SuccessRAR and MAC SDU.
  • the terminal analyzes all the bit information jointly, that is, the combination [0,0,0,0,0,0,0,1] indicates that there is after MAC SubPDU6
  • the information based on all the bits in the MAC subheader indicates whether there is a second MAC SubPDU containing Success RAR after the first MAC SubPDU and after the first MAC SubPDU The number of existing third MAC SubPDUs including MAC SDU.
  • the information of all bits can be the numerical combination information of all the bits, that is, different numerical combinations can correspond to different indication information.
  • MsgB in FIG. 6 The above situation is illustrated by MsgB in FIG. 6 as an example.
  • the first terminal is the first terminal in MsgB that has both SuccessRAR and MAC SDU.
  • the terminal analyzes all the bit information jointly, that is, the combination [0,0,0,1,1,0,0,1] can be used to indicate that the MAC SubPDU3 returns There is at least one MAC SubPDU containing Success RAR, and there is one MAC SubPDU 4 containing MAC PDU after SuccessRAR of the terminal.
  • the second terminal is taken as an example.
  • the second terminal is the second terminal in MsgB that has both SuccessRAR and MAC SDU.
  • the terminal analyzes all the bit information jointly, that is, the combination [0,0,0,0,1,0,1,0] can be used to indicate that the MAC SubPDU5 returns There is at least one MAC SubPDU that contains Success RAR, and there are 2 MAC SubPDUs 6/7 that contain MAC PDU after SuccessRAR of the terminal.
  • the third terminal is taken as an example.
  • the third terminal is the third terminal in MsgB that has both SuccessRAR and MAC SDU.
  • the terminal analyzes all bit information jointly, that is, the combination [0,0,0,0,0,0,0,1] indicates that there is no after MAC SubPDU8 Other MAC SubPDUs containing Success RAR, and there is a MAC SubPDU 9 containing MAC PDU after SuccessRAR of the terminal.
  • the possible combinations of MsgB messages can include any of the following:
  • any of the above-mentioned MsgB design forms can be realized.
  • the MAC SDU includes at least one of the following information: at least one RRC message, at least one RLC ACK, at least one downlink data packet, and at least one uplink scheduling grant.
  • RLC ACK may be included in some or all of the MAC SDU; at this time, the MAC SDU including the RLC ACK may be carried by a certain MAC SubPDU, and one MAC SubPDU may include one or more RLC ACKs. Each RLC ACK corresponds to a logical channel. The specific content of RLC ACK is defined in the protocol of the RLC sublayer.
  • An AM RLC entity sends STATUS PDUs to its peer AM RLC entity in order to provide positive and/or negative acknowledgements of RLC SDUs (or ports of them); in addition, for the MAC layer protocol
  • the above-mentioned RLC ACK is embodied as a data payload.
  • the base station uses an RLC ACK indicator to indicate whether the RLC data packet corresponding to the terminal has been received correctly. If it is not correct, there will be heavy The distance passed.
  • the uplink scheduling authorization may be included in part or all of the MAC SDU.
  • the base station can use the uplink scheduling authorization to instruct the user to send uplink data in a certain physical uplink shared channel (PUSCH) resource; the uplink scheduling authorization can specifically indicate the uplink PUSCH channel resources (such as time-frequency resources, transmission power control related information, HARQ Related information, etc.), of course, you can refer to the physical layer protocol TS38.213 for details.
  • the terminal can determine the physical resources and power required to send uplink data; the terminal can also use the RNTI (user ID) and timing information (timing advance, received in SuccessRAR). TA) and other information to adjust the transmission of uplink data.
  • RNTI user ID
  • timing information timing advance, received in SuccessRAR
  • a downlink data packet may be included in part or all of the MAC SDU.
  • the base station can include the downlink data of one or more users in the MsgB; for the MAC layer protocol, the downlink data is embodied as the data payload, which is transmitted in the MAC SubPDU; if the downlink data requires uplink ACK feedback, it can be reused in The PUCCH resource indicated by the related information contained in the SuccessRAR is sent.
  • the SuccessRAR when the base station determines that the terminal cannot parse the information of all the bits in the MAC subheader, if there is a MAC SDU corresponding to the terminal after the SuccessRAR corresponding to the terminal, the SuccessRAR is MsgB The first SuccessRAR in the message; when the base station is not sure whether the terminal can parse the information of all bits in the MAC subheader, if there is a MAC SDU corresponding to the terminal after the SuccessRAR corresponding to the terminal, the SuccessRAR is The first SuccessRAR in the MsgB message.
  • the base station can determine whether the terminal can parse the information of all bits in the MAC sub-header, at this time, if the base station determines that the terminal can parse the information of all the bits in the MAC sub-header, the base station can use the above implementation In the example, MsgB sends one or more kinds of information about the terminal.
  • the base station determines that the terminal cannot parse the information of all bits in the MAC subheader, the base station considers that the terminal will ignore all R bits, and the terminal will ignore the R bits; but if the terminal happens to be "the existing SuccessRAR in the MsgB There are also terminals containing MAC SubPDU of MAC SDU", the SuccessRAR corresponding to this terminal is the first SuccessRAR in the MsgB message; of course, the base station can still use the R bit of the SuccessRAR of the terminal to indicate some information, see the previous embodiment, but The terminal does not need to be parsed. It should be noted here that no matter whether the terminal can parse all the bit information in the MAC subheader, the data transmission of the terminal will not affect other terminals.
  • the base station when the base station is not sure whether the terminal can parse the information of all bits in the MAC subheader, the base station considers that the terminal will ignore all R bits, and the terminal will ignore the R bits at this time. But if the terminal happens to be a "terminal with both SuccessRAR and MAC SDU MAC SubPDU in the MsgB", the SuccessRAR corresponding to the terminal is the first SuccessRAR in the MsgB message, and the base station can still use the R bit of the SuccessRAR of the terminal To indicate some information, see the previous embodiment. The terminal can parse MsgB according to this embodiment, but will not receive the SuccessRAR sent according to this embodiment. Regardless of the above-mentioned situation, the data transmission for this terminal will not affect other terminals.
  • the MAC subheader of SuccessRAR carries the indication information of whether there is a second MAC SubPDU corresponding to at least one terminal after the first MAC SubPDU.
  • MAC SubPDU is a MAC SubPDU that contains SuccessRAR or MAC SDU, so that the MsgB message can contain SuccessRARs corresponding to multiple terminals and can contain MAC SDUs corresponding to multiple terminals, based on the MAC SDU that can contain RRC messages or RLC ACK messages In this way, it is possible to multiplex RLC ACK messages from multiple terminals into one MsgB message, avoiding the need to send MsgB messages to each terminal separately when the RLC ACK message needs to be fed back to multiple terminals, which improves resources Use efficiency.
  • FIG. 7 it is a flowchart of the steps of the information transmission method on the terminal side in the embodiment of the present disclosure.
  • the method includes the following steps:
  • Step 701 Receive a random access response MsgB message sent by the base station.
  • the MAC subheader of SuccessRAR carries the indication information of whether there is a second MAC SubPDU corresponding to at least one terminal after the first MAC SubPDU, and the second MAC SubPDU is MAC SubPDU containing SuccessRAR or MAC SDU.
  • the MsgB message can include the SuccessRAR corresponding to multiple terminals and the MAC SDU corresponding to multiple terminals.
  • the RRC message or RLC ACK message can be included, so that the The RLC ACK message is multiplexed in one MsgB message, which avoids the need to send the MsgB message to each terminal separately when the RLC ACK message needs to be fed back to multiple terminals, and improves the resource usage efficiency.
  • the MAC sub-header of the SuccessRAR includes N identification bits and M reserved bits; wherein, when the numerical combination of the M reserved bits is obtained by parsing to be the first combination, according to the preset The protocol only parses the information of the N identification bits; when the numerical combination of the M reserved bits is obtained by the analysis as the second combination, the information of all the bits in the MAC subheader is parsed; N and M is a positive integer greater than 1.
  • the numerical combination of the M reserved bits is the second combination, it is determined based on the information of all the bits in the MAC subheader that there is a third MAC SDU after the first MAC SubPDU.
  • MAC SubPDU and determine whether there is a second MAC SubPDU containing Success RAR corresponding to other terminals after the first MAC SubPDU.
  • the numerical combination of all bits in the MAC subheader is a third combination, it is determined that there is a third MAC SubPDU including a MAC SDU after the first MAC SubPDU, and it is determined that there is a third MAC SubPDU after the first MAC SubPDU.
  • At least one second MAC SubPDU containing Success RAR when the numerical combination of all bits in the MAC subheader is the fourth combination, it is determined that there is a third MAC SubPDU containing MAC SDU after the first MAC SubPDU, and It is determined that there is no second MAC SubPDU containing Success RAR after the first MAC SubPDU.
  • the value combination of the M reserved bits is a second combination, it is determined based on the information of all the bits in the MAC subheader whether there is a second MAC SubPDU that includes Success RAR.
  • the MAC SDU includes at least one of the following information: at least one radio resource control RRC message, at least one radio link control confirmation message RLC ACK, at least one downlink data packet, and at least one uplink scheduling grant.
  • FIG. 8 it is a module block diagram of the information transmission device on the base station side in an embodiment of the present disclosure, and the device includes:
  • the sending module 801 is configured to send a random access response MsgB message to the terminal, where when the first media access control sub-protocol data unit MAC SubPDU in the MsgB message contains a successful response SuccessRAR, the MAC subheader of SuccessRAR carries the first Whether there is indication information of a second MAC SubPDU corresponding to at least one terminal after a MAC SubPDU, the second MAC SubPDU is a MAC SubPDU including SuccessRAR or MAC SDU of the media access control service data unit.
  • the device can realize all method steps and beneficial effects on the base station side, and detailed descriptions of the method steps and beneficial effects that are the same as those on the method side in this embodiment will not be repeated here.
  • FIG. 9 it is a block diagram of a module of the information transmission device on the base station side in an embodiment of the present disclosure, and the device includes:
  • the receiving module 901 is configured to receive a random access response MsgB message sent by a base station, where when the first media access control subprotocol data unit MAC SubPDU in the MsgB message contains a successful response SuccessRAR, the MAC subheader of SuccessRAR carries Whether there is indication information of the second MAC SubPDU corresponding to at least one terminal after the first MAC SubPDU, the second MAC SubPDU is a MAC SubPDU including SuccessRAR or a media access control service data unit MAC SDU.
  • the device can realize all method steps and beneficial effects on the terminal side, and detailed descriptions of the method steps and beneficial effects that are the same as those on the method side in this embodiment will not be repeated here.
  • FIG. 10 it is a schematic diagram of the physical structure of a base station provided by an embodiment of the present disclosure.
  • the base station may include: a processor 1010, a communication interface 1020, a memory 1030, and a communication bus 1040. , Among them, the processor 1010, the communication interface 1020, and the memory 1030 communicate with each other through the communication bus 1040.
  • the processor 1010 can call a computer program stored on the memory 1030 and run on the processor 1010 to perform the following steps:
  • the MAC subheader of SuccessRAR carries the first MAC SubPDU if it exists afterwards Indication information of the second MAC SubPDU corresponding to at least one terminal, where the second MAC SubPDU is a MAC SubPDU including SuccessRAR or a media access control service data unit MAC SDU.
  • the MAC subheader of the SuccessRAR includes N identification bits and M reserved bits; wherein, when the value combination of the M reserved bits is the first combination, the terminal is instructed to follow a preset protocol Only the information of the N identification bits is parsed; when the numerical combination of the M reserved bits is the second combination, the terminal is instructed to parse the information of all the bits in the MAC subheader; N and M Both are positive integers greater than 1.
  • the numerical combination of the M reserved bits is the first combination, it is indicated that there is no second MAC SubPDU containing Success RAR corresponding to other terminals after the first MAC SubPDU.
  • the information based on all the bits in the MAC subheader indicates that there is a third MAC that includes a MAC SDU after the first MAC SubPDU SubPDU, and indicates whether there is a second MAC SubPDU containing Success RAR corresponding to other terminals after the first MAC SubPDU.
  • the numerical combination of all the bits in the MAC subheader when the numerical combination of all the bits in the MAC subheader is a third combination, it indicates that there is a third MAC SubPDU including a MAC SDU after the first MAC SubPDU, and indicates the first MAC SubPDU After that, there is at least one second MAC SubPDU containing Success RAR; when the numerical combination of all bits in the MAC subheader is the fourth combination, it indicates that there is a third MAC SubPDU containing MAC SDU after the first MAC SubPDU And indicates that there is no second MAC SubPDU containing Success RAR after the first MAC SubPDU.
  • information based on all bits in the MAC subheader indicates whether there is a second MAC including Success RAR after the first MAC SubPDU SubPDU and the number of the third MAC SubPDU that includes the MAC SDU after the first MAC SubPDU.
  • the base station determines that the terminal cannot parse the information of all the bits in the MAC subheader, if there is a MAC SDU corresponding to the terminal after the SuccessRAR corresponding to the terminal, the SuccessRAR is the MsgB The first SuccessRAR in the message; when the base station is not sure whether the terminal can parse the information of all the bits in the MAC subheader, if there is a MAC SDU corresponding to the terminal after the SuccessRAR corresponding to the terminal, then The SuccessRAR is the first SuccessRAR in the MsgB message.
  • the MAC SDU includes at least one of the following information: at least one radio resource control RRC message, at least one radio link control confirmation message RLC ACK, at least one downlink data packet, and at least one uplink scheduling grant.
  • the base station can implement all method steps and beneficial effects on the base station side, and detailed descriptions of the method steps and beneficial effects that are the same as those on the method side in this embodiment will not be repeated here.
  • the above-mentioned logic instructions in the memory 1030 can be implemented in the form of a software functional unit and when sold or used as an independent product, they can be stored in a computer readable storage medium.
  • the technical solution of the present disclosure essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .
  • FIG. 11 it is a schematic diagram of the physical structure of the terminal provided by the embodiments of the present disclosure.
  • the terminal may include: a processor 1110, a communication interface 1120, a memory 1130, and a communication bus 1140 Among them, the processor 1110, the communication interface 1120, and the memory 1130 communicate with each other through the communication bus 1140.
  • the processor 1110 may call a computer program stored on the memory 1130 and run on the processor 1110 to perform the following steps:
  • the base station receives the random access response MsgB message sent by the base station, where when the first media access control subprotocol data unit MAC SubPDU in the MsgB message contains a successful response SuccessRAR, the MAC subheader of SuccessRAR carries the first MAC SubPDU.
  • the MAC sub-header of the SuccessRAR includes N identification bits and M reserved bits; wherein, when the numerical combination of the M reserved bits is obtained through analysis as the first combination, a preset protocol is used Only parse the information of the N identification bits; when the numerical combination of the M reserved bits is obtained as the second combination, parse the information of all the bits in the MAC subheader; N and M Both are positive integers greater than 1.
  • the numerical combination of the M reserved bits is the first combination, it is determined that there is no second MAC SubPDU containing Success RAR corresponding to other terminals after the first MAC SubPDU.
  • the numerical combination of the M reserved bits is the second combination, it is determined based on the information of all the bits in the MAC subheader that there is a third MAC that includes a MAC SDU after the first MAC SubPDU. SubPDU, and determine whether there is a second MAC SubPDU containing Success RAR corresponding to other terminals after the first MAC SubPDU.
  • the numerical combination of all bits in the MAC subheader is a third combination, it is determined that there is a third MAC SubPDU including a MAC SDU after the first MAC SubPDU, and the first MAC SubPDU is determined After that, there is at least one second MAC SubPDU containing Success RAR; when the numerical combination of all the bits in the MAC subheader is the fourth combination, it is determined that there is a third MAC SubPDU containing MAC SDU after the first MAC SubPDU , And it is determined that there is no second MAC SubPDU containing Success RAR after the first MAC SubPDU.
  • the numerical combination of the M reserved bits is a second combination, it is determined based on the information of all the bits in the MAC subheader whether there is a second MAC including Success RAR after the first MAC SubPDU SubPDU and the number of the third MAC SubPDU that includes the MAC SDU after the first MAC SubPDU.
  • the MAC SDU includes at least one of the following information: at least one radio resource control RRC message, at least one radio link control confirmation message RLC ACK, at least one downlink data packet, and at least one uplink scheduling grant.
  • the terminal can implement all method steps and beneficial effects on the terminal side, and detailed descriptions of the method steps and beneficial effects that are the same as those on the method side in this embodiment will not be repeated here.
  • the aforementioned logic instructions in the memory 1130 may be implemented in the form of software functional units and when sold or used as independent products, they may be stored in a computer readable storage medium.
  • the technical solution of the present disclosure essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .
  • the embodiments of the present disclosure also provide a non-transitory computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the computer program is implemented to perform the methods provided in the foregoing embodiments, and can achieve the same technical effect , I won’t repeat it here.
  • the device embodiments described above are merely illustrative.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network units.
  • Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement it without creative work.
  • each implementation manner can be implemented by software plus a necessary general hardware platform, and of course, it can also be implemented by hardware.
  • the above technical solution essentially or the part that contributes to the existing technology can be embodied in the form of a computer software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, A magnetic disk, an optical disk, etc., include several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiment.

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Abstract

本公开实施例提供一种信息传输方法、基站及终端,其中信息传输方法包括:向终端发送MsgB消息,其中当MsgB消息中的第一MAC SubPDU中包含SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。本实施例实现了在一个MsgB消息中多个用户MAC SDU的复用,提高了资源利用率。

Description

一种信息传输方法、基站及终端
相关申请的交叉引用
本申请要求于2020年02月13日提交的申请号为2020100910746,发明名称为“一种信息传输方法、基站及终端”的中国专利申请的优先权,其通过引用方式全部并入本文。
技术领域
本公开涉及通信技术领域,尤其涉及一种信息传输方法、基站及终端。
背景技术
在新空口(New Radio,NR)网络中定义了一个新的无线资源控制(Radio Resource Control,RRC)状态:RRC非活跃(Inactive)态。无线接入网中的节点可以向一个处于RRC连接态的终端发送一条携带有挂起配置(SuspendConfig)的RRC释放(Release)消息,以指示其进入RRC非活跃态。此后该节点即为该终端的锚点节点,存留有该终端的上下文信息。上述RRC Release消息中还包含有无线接入网通知区域(RAN Notification Area,RNA)配置信息,终端处于所配置的RNA范围之内移动时不需要与网络侧进行任何通信。
此外,当用户处于RRC Inactive态时,可以向网络发送小数据(Small data)。这里“小”的含义主要是数据量不大,持续性不强,往往是一次或少数几次数据传输,因此用户可停留在RRC Inactive完成上述数据传输过程,而不要求在此过程中进入RRC Connected状态,以降低了数据时延,减少进入连接态的一些信令交互。如果数据传输采用的是无线链路控制(Radio Link Control,RLC)通知模式(Acknowledged Mode,RLC AM),则当基站收到用户的数据后,需反馈RLC ACK给用户,以知会用户的RLC子层相应的RLC数据包是否正确接收。
但是,在现有技术中,基于两步随机接入信道(2-step Random Access Channel,2-step RACH)流程进行Small data时无法支持多个用户的RLC ACK复用在一个随机接入响应(例如MsgB)消息中,这导致需要向多个用户分别发送MsgB,从而造成资源使用效率降低。
发明内容
本公开实施例提供一种信息传输方法、基站及终端,以提高资源使用效率。
本公开实施例提供一种信息传输方法,包括:
向终端发送随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
本公开实施例提供一种信息传输方法,包括:
接收基站发送的随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
本公开实施例提供一种信息传输装置,包括:
发送模块,用于向终端发送随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
本公开实施例提供一种信息传输装置,包括:
接收模块,用于接收基站发送的随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
本公开实施例提供一种基站,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述程序时实现如下步骤:
向终端发送随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
本公开实施例提供一种终端,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述程序时实现如下步骤:
接收基站发送的随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
本公开实施例提供一种非暂态计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现所述的方法的步骤。
本公开实施例提供的信息传输方法、基站及终端,通过向终端发送MsgB消息,且当MsgB消息中的第一MAC SubPDU中包含SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或MAC SDU的MAC SubPDU,使得在MsgB消息中能够包含多个终端所对应的SuccessRAR且能够包含多个终端所对应的MAC SDU,基 于MAC SDU中可以包含RRC消息或RLC ACK消息,从而实现了能够将多个终端的RLC ACK消息复用在一个MsgB消息中,避免了在需要向多个终端反馈RLC ACK消息时,需要单独向每个终端发送MsgB消息的问题,提高了资源使用效率。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本公开实施例中基站侧的信息传输方法的步骤流程图;
图2为本公开实施例中MAC子头的结构示意图;
图3为本公开实施例中MsgB的示意图之一;
图4为本公开实施例中MsgB的示意图之二;
图5为本公开实施例中MsgB的示意图之三;
图6为本公开实施例中MsgB的示意图之四;
图7为本公开实施例中终端侧的信息传输方法的步骤流程图;
图8为本公开实施例中基站侧的信息传输装置的模块框图;
图9为本公开实施例中基站侧的信息传输装置的模块框图;
图10为本公开实施例中基站的结构示意图;
图11为本公开实施例中终端的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚,下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
具体的,2-step RACH包含两步:第一步用户给网络发送MsgA,第二步网络给用户发送随机接入响应(即MsgB)。其中,MsgA一般包含一个RACH序列和一个物理上行共享信道(PhysicalUplinkSharedChannel,PUSCH)数据传输;MsgB包含着基站发送给一个或多个用户的随机接入响应,对某个用户可能是相应的回退响应(Fallback Random-Access Response,Fallback RAR),Success RAR以及媒体接入控制(Media Access Control,MAC)服务数据单元(Service Data Unit,SDU);如果是MAC SDU,一般伴随着Success RAR出现。
此外,当用户利用2-step RACH来发送small data时基本过程可以为,用户发送MsgA给基站,MsgA包含一个RACH序列以及一个PUSCH数据传输。其中PUSCH可进一步承载用户的RRC消息和small data数据包;当基站接收到该用户的MsgA后,会向用户发送响应信息MsgB。MsgB中,可能包含着其它的RRC消息以及针对于上述small data数据包的RLC ACK信息;当然如果基站无法正确接收MsgA或部分MsgA,基站可能会要求用户重发,或改用其它过程发送small data。
但是基于在现有的MsgB的格式定义中有如下限制:如果在MsgB中包含多个用户的信息,则最多只能针对有一个用户即包含其SuccessRAR也包含该用户的其它MAC SDU,这导致现有机制不允许在一个MsgB中复用多个用户的MAC SDU,即复用多个用户的RRC消息以及RLC ACK消息。例如,假设有两个用户A和B,在之前时间分别各自在MsgA发送small data给基站,基站在当前时刻可在同一个MsgB中包含用户A和B各自的SuccessRAR;但是,仅能包含其中一个用户的MAC SDU,该限制的根源是现有机制MsgB格式设计的局限性,即利用SuccessRAR的一个header域来指示“MsgB中是否还包含该用户的MAC SDU”。如果是,则MAC SDU紧随着SuccessRAR,且位于该MsgB消息的尾部。
针对上述缺陷,本公开提供如下实施例:
如图1所示,为本公开实施例中基站侧的信息传输方法的步骤流程图,该方法包括如下步骤:
步骤101:向终端发送随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元(简称MAC SubPDU)中包含成功响应(SuccessRAR)时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息;具体的,第二MAC SubPDU为包含SuccessRAR或MAC SDU的MAC SubPDU。
具体的,通过在SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的包含SuccessRAR或MAC SDU的第二MAC SubPDU的指示信息,使得在MsgB消息中能够包含多个终端所对应的SuccessRAR且能够包含多个终端所对应的MAC SDU,基于MAC SDU中可以包含RRC消息或RLC ACK消息,从而实现了能够将多个终端的RLC ACK消息复用在一个MsgB消息中,避免了在需要向多个终端反馈RLC ACK消息时,需要单独向每个终端发送MsgB消息的问题,提高了资源使用效率。
其中,在本实施例中,SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;其中,当M个预留比特的数值组合为第一组合时,指示终端按照预设协议仅对N个标识比特的信息进行解析;当M个预留比特的数值组合为第二组合时,指示终端对MAC子头中的所有比特的信息进行解析;N和M均为大于1的正整数。
具体的,参见图2所示,为本实施例中SuccessRAR的MAC子头的示意图。其中,N和M的取值可以为4,即MAC子头中包括有4个标识比特和4个预留比特,4个标识比特分别为图2中所示的E、T1、T2和S字段比特,4个预留比特位为图2中所示的4个R字段比特。
此时,第一组合可以为全零组合,即当{R,R,R,R}={0,0,0,0}时,指示终端按照预设协议仅对N个标识比特的信息进行解析,即此时终端可忽略R比特,仅解读E、T1、T2和S字段比特的信息;第二组合可以为非全零组合,此时指示终端不可忽略R比特,需要联合解读E、T1、T2和S字段比特,即指示终端对MAC子头中的所有比特的信息进行解析,对MsgB中该Success RAR的后续包含内容进行判断。
例如,如图3所示的MsgB,假设MsgB中对应多个“既有SuccessRAR又有MAC SDU”的终端,且在MAC子头3(subheader3)中,R比特全为0,则按照预设协议对标识比特进行解读;而在subheader4/6中,R比特不全为0,则在解读subheader4/6时,用户需解读MAC子头中的E/T1/T2/S/R/R/R/R所有比特,并根据该些比特的组合信息来对后续内容进行判断。
具体的,预设协议可以为现有的规范协议,下面对预设协议中对E、T1、T2和S字段比特的解释进行说明:
E:The Extension field is a flag indicating if the MAC subPDU including this MAC subheader is the last MAC subPDU(other than MAC subPDU for MAC SDU)or not in the MAC PDU.The E field is set to"1"to indicate at least another MAC subPDU(other than MAC subPDU for MAC SDU)follows.The E field is set to"0"to indicate that the MAC subPDU including this MAC subheader is the last MAC subPDU(other than MAC subPDU for MAC SDU)in the MAC PDU。
T1:The T1 field is a flag indicating whether the MAC subheader contains a Random Access Preamble ID or T2.The T1 field is set to"1"to indicate the presence of a Random Access Preamble ID field in the subheader(RAPID).The T1 field is set to"0"to indicate the presence of T2 field in the subheader。
T2:The T2 field is a flag indicating whether the MAC subheader contains a Backoff Indicator(BI)or a MAC SDU indicator(S).The T2 field is set to"0"to indicate the presence of a Backoff Indicator field in the subheader.The T2 field is set to"1"to indicate the presence of the S field in the subheader。
S:This field indicates whether'MAC subPDU(s)for MAC SDU'follow the MAC subPDU including this MAC subheader or not;The S field is set to"1"to indicate presence of'MAC subPDU(s)for MAC SDU'.The S field is set to"0"to indicate absence of'MAC subPDU(s)for MAC SDU。
此外,进一步地,下面针对如何通过MAC子头对第二MAC SubPDU的存在情况进行指示进行说明。
其一,当M个预留比特的数值组合为第一组合时,指示第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
具体的,在数值组合为第一组合时,指示第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU,即此时第一MAC SubPDU之后可能存在MAC SDU,但不存在其他终端所对应的MAC SubPDU。此时则可以按照原有的MsgB设计进行传输。
例如,如图4所示的MsgB,当MsgB消息中仅对应有一个即有SuccessRAR又有MAC SDU的终端时,在图4中的MAC子头4(subheader4)中,R比特的数值组合为第一组合,即可以都为0,即指示第一MAC SubPDU之后不存在其他终端所对应的包含SuccessRAR的第二MAC SubPDU,且可以仅解读标识比特。具体的,若第一MAC SubPDU之后有“含一个或多个MAC SDU的”MAC SubPDU,且该第一MAC SubPDU是该MsgB中唯一一个之后有“含一个或多个MAC SDU的”MAC SubPDU,则终端根据预设协议对MAC子头中的标识比特进行解读;当然此时第一MAC SubPDU中的SuccessRAR为MsgB消息中的最后一个SuccessRAR。
此外,还需要说明的是,若终端不支持本实施例中的方法,则终端可以直接忽略R比特;若终端支持本实施例中的方法,则由于R比特的数值组合为第一组合,则终端同样会按照预设协议,根据E/T1/T2/S等比特的组合来确定相应的MAC SubPDU中含有什么内容,或后续还有没有MAC SubPDU(含随机接入响应的MAC SubPDU,或含MAC SDU的MAC SubPDU)。
其二,当M个预留比特的数值组合为第二组合时,基于MAC子头中的所有比特的信息指示第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU。
在此需要说明的是,第一MAC SubPDU和第三MAC SubPDU为同一终端所对应的MAC SubPDU,即第三MAC SubPDU相邻跟随第一MAC SubPDU。
具体的,第二组合可以为非全零组合;所有比特的信息可以为所有比特的数值组合信息。此外,基于M个预留比特的数值组合为第二组合时终端可以对MAC子头中的所有比特的信息进行解析,此时则可以基于MAC子头中的所有比特的信息指示第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU。
具体的,在基于MAC子头中的所有比特的信息指示第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU时,可以当MAC子头中的所有比特的数值组合为第三组合时,指示第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC SubPDU;当MAC子头中的所有比特的数值组合为第四组合时,指示第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
下面通过图5所示的MsgB对此进行解释说明。
例如如图5所示,在图5中所示的MsgB中,MsgB包含BI SubPDU(Backoff indicator,现有机制)、对应于某终端的FallbackRAR、第一终端的SuccessRAR+MAC SDUs(2个)、第二终端的SuccessRAR+MAC SDU(1个)。
假设以第一终端为例,第一终端为该MsgB中第一个既有SuccessRAR又有MAC SDU的终端,此时可令该终端SuccessRAR的MAC Subheader(是MAC SubPDU3的一部分)为[E/T1/T2/S,R,R,R,R]=[0,0,0,1,1,0,1,0]。此时由于R比特为第二组合即为非全零组合,则终端联合分析所有比特信息,即可以利用组合[0,0,0,1,1,0,1,0]表示MAC SubPDU3之后存在有包含MAC SDU的MAC SubPDU,且存在至少一个包含Success RAR的MAC SubPDU。
此外,以第二终端为例,第二终端为MsgB中第二个既有SuccessRAR又有MAC SDU的终端,此时可令该终端SuccessRAR的MAC Subheader(是MAC SubPDU6的一部分)为[E/T1/T2/S,R,R,R,R]=[0,0,0,0,0,0,0,1]。此时由于R比 特为第二组合即为非全零组合,则终端联合分析所有比特信息,即可以利用组合[0,0,0,0,0,0,0,1]表示MAC SubPDU6之后有包含MAC SDU的MAC SubPDU,且没有其他包含Success RAR的MAC SubPDU。
其三,当M个预留比特的数值组合为第二组合时,基于MAC子头中的所有比特的信息指示第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
即在该实施例中不仅能够对第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU进行指示,还能够进一步对第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量进行指示。
当然,在此需要说明的是,所有比特的信息可以为所有比特的数值组合信息,即不同的数值组合可以对应不同的指示信息。
下面通过图6中的MsgB对上述情况进行举例说明。
在图6中,假设以第一终端为例,第一终端为MsgB中第一个既有SuccessRAR又有MAC SDU的终端,此时可令该终端SuccessRAR的MAC Subheader(是MAC SubPDU3的一部分)为[E/T1/T2/S,R,R,R,R]=[0,0,0,1,1,0,0,1]。此时由于R比特为第二组合即为非全零组合,则终端联合分析所有比特信息,即可以利用组合[0,0,0,1,1,0,0,1]表示MAC SubPDU3之后还存在至少一个包含Success RAR的MAC SubPDU,且该终端SuccessRAR之后有1个包含MAC PDU的MAC SubPDU4。
假设以第二终端为例,第二终端为MsgB中第二个既有SuccessRAR又有MAC SDU的终端,此时可令该终端SuccessRAR的MAC Subheader(是MAC SubPDU5的一部分)为[E/T1/T2/S,R,R,R,R]=[0,0,0,0,1,0,1,0]。此时由于R比特为第二组合即为非全零组合,则终端联合分析所有比特信息,即可以利用组合[0,0,0,0,1,0,1,0]表示MAC SubPDU5之后还存在至少一个包含Success RAR的MAC SubPDU,且该终端SuccessRAR之后有2个包含MAC PDU的MAC SubPDU6/7。
假设以第三终端为例,第三终端为MsgB中第三个既有SuccessRAR又有MAC SDU的终端,此时可令该终端SuccessRAR的MAC Subheader(是MAC SubPDU8的一部分)为[E/T1/T2/S,R,R,R,R]=[0,0,0,0,0,0,0,1]。此时由于R比特为第二组合即为非全零组合,则终端联合分析所有比特信息,即可以利用组合[0,0,0,0,0,0,0,1]表示MAC SubPDU8之后没有其他包含Success RAR的MAC SubPDU,且该终端SuccessRAR之后有1个包含MAC PDU的MAC SubPDU9。
此时基于上述各实施例描述能够实现对MsgB消息中SuccessRAR之后所包含内容的指示。当然在此需要说明的是,上述实施例并未考虑有BI/SI响应/FallbackRAR等信息对应的MAC SubPDU会出现在“含R比特非全0”的MAC Subheader对应的SuccessRAR之后,从而使得整个MsgB的设计较为简化。此时在进行上述指示之后,MsgB消息的可能组合形态可以包括如下任意一种:
BI、BI+SI请求响应;
BI+SI请求响应+若干FallbackRAR;
BI+SI请求响应+若干FallbackRAR+若干SucessRAR(后不跟MAC SDU);
BI+SI请求响应+若干FallbackRAR+若干SucessRAR(后不跟MAC SDU)+单个SucessRAR(后跟MAC SDU);
BI+SI请求响应+若干FallbackRAR+若干SucessRAR(后不跟MAC SDU)+单个SucessRAR(后跟MAC SDU)+若干SucessRAR(后跟MAC SDU)。
即通过上述对MAC子头中比特信息的应用能够实现上述任何一种MsgB设计形式。
另外进一步地,在本实施例中,MAC SDU中包括如下信息中的至少一项:至少一个RRC消息、至少一个RLC ACK、至少一个下行数据包以及至少一个上行调度授权。
具体的,可以在部分或全部MAC SDU中包含RLC ACK;此时包含RLC ACK的MAC SDU可由某个MAC SubPDU来承载,在一个MAC SubPDU中可以包含一个或多个RLC ACK。每一个RLC ACK对应于一个逻辑信道。RLC ACK的具体内容在RLC子层的协议中进行定义。例如,在规范TS 38.322中解 释有An AM RLC entity sends STATUS PDUs to its peer AM RLC entity in order to provide positive and/or negative acknowledgements of RLC SDUs(or portions of them);此外,对于MAC层的协议来说,上述RLC ACK体现为数据载荷,在MAC SubPDU传输,对于RLC层协议来说,基站通过一个RLC ACK指示信息来指示终端对应的RLC数据包是否已经被正确接收,如果不正确,会有重传的路程。
另外,具体的,可以在部分或全部MAC SDU中包含上行调度授权。此时基站可利用上行调度授权指示用户在后续某个物理上行共享信道(PUSCH)资源中发送上行数据;上行调度授权具体可以指示上行PUSCH信道资源(如时频资源、发送功率控制相关信息、HARQ相关信息等),当然具体可参考物理层协议TS38.213。此外,如果终端收到了该上行调度授权,终端可以确定发送上行数据所需用的物理资源和功率等;终端还可以根据在SuccessRAR中收到的RNTI(用户的ID)和定时信息(timing advance,TA)等信息来调整上行数据的传输。
另外,具体的,可以在部分或全部MAC SDU中包含下行数据包。此时基站可在MsgB中包含一个或多个用户的下行数据;对于MAC层的协议来说,下行数据体现为数据载荷,在MAC SubPDU传输;若下行数据需要上行的ACK反馈,则可重用在SuccessRAR中包含的相关信息所指示的PUCCH资源来发送。
另外,进一步地,在本实施例中当基站确定终端不能对MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则SuccessRAR为MsgB消息中的第一个SuccessRAR;当基站不确定终端是否能对MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则SuccessRAR为所述MsgB消息中的第一个SuccessRAR。
具体的,当基站能够确定终端是否能够对MAC子头中的所有比特的信息进行解析时,此时若基站确定终端能够对MAC子头中的所有比特的信息进行解析,则基站可以利用上述实施例中的MsgB发送终端的一种或多种信息。若 基站确定终端不能够对MAC子头中的所有比特的信息进行解析,则基站认为终端将忽略所有R比特,此时终端将忽略R比特;但如果该终端恰好是“该MsgB中既有SuccessRAR又有含MAC SDU的MAC SubPDU的终端”,该终端所对应的SuccessRAR为MsgB消息中的首个SuccessRAR;当然基站仍然可以利用该终端的SuccessRAR的R比特来指示一些信息,见前述实施例,但该终端不需要解析。在此需要说明的是,无论终端是否能对MAC子头中的所有比特信息进行解析,终端的数据发送不会影响到其他终端。
此外,具体的,当基站不确定终端是否能对所述MAC子头中的所有比特的信息进行解析时,则基站认为终端将忽略所有R比特,此时终端将忽略R比特。但如果该终端恰好是“该MsgB中既有SuccessRAR又有MAC SDU的MAC SubPDU的终端”,该终端所对应的SuccessRAR为MsgB消息中的首个SuccessRAR,基站仍然可以利用该终端的SuccessRAR的R比特来指示一些信息,见前述实施例。该终端可按照本实施例解析MsgB,但并不会接收到按本实施例发送的SuccessRAR。无论上述那种情况,针对于该终端的数据发送不会影响其它终端。
这样,本实施例在当MsgB消息中的第一MAC SubPDU中包含SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或MAC SDU的MAC SubPDU,使得在MsgB消息中能够包含多个终端所对应的SuccessRAR且能够包含多个终端所对应的MAC SDU,基于MAC SDU中可以包含RRC消息或RLC ACK消息,从而实现了能够将多个终端的RLC ACK消息复用在一个MsgB消息中,避免了在需要向多个终端反馈RLC ACK消息时,需要单独向每个终端发送MsgB消息的问题,提高了资源使用效率。
此外,如图7所示,为本公开实施例中终端侧的信息传输方法的步骤流程图,该方法包括如下步骤:
步骤701:接收基站发送的随机接入响应MsgB消息。
具体的,当MsgB消息中的第一MAC SubPDU中包含SuccessRAR时, SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或MAC SDU的MAC SubPDU。
这样,使得在MsgB消息中能够包含多个终端所对应的SuccessRAR且能够包含多个终端所对应的MAC SDU,基于MAC SDU中可以包含RRC消息或RLC ACK消息,从而实现了能够将多个终端的RLC ACK消息复用在一个MsgB消息中,避免了在需要向多个终端反馈RLC ACK消息时,需要单独向每个终端发送MsgB消息的问题,提高了资源使用效率。
此外,进一步地,所述SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;其中,当解析得到所述M个预留比特的数值组合为第一组合时,按照预设协议仅对所述N个标识比特的信息进行解析;当解析得到所述M个预留比特的数值组合为第二组合时,对所述MAC子头中的所有比特的信息进行解析;N和M均为大于1的正整数。
在此进行说明的是,本实施例内的具体阐述可以参见上述基站侧相对应部分的技术阐述,在此不再进行具体说明。
另外,进一步地,当所述M个预留比特的数值组合为第一组合时,确定所述第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
在此需要说明的是,针对该部分的具体举例可以参见上述基站侧实施例中的相对应部分,在此不再进行具体说明。
另外,进一步地,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后是否存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
其中,当所述MAC子头中的所有比特的数值组合为第三组合时,确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC SubPDU;当所述MAC子头中的所有比特的数值组合为第四组合时, 确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
在此需要说明的是,针对该实施例的具体举例可以参见上述基站侧实施例中的相对应部分,在此不再进行具体说明。
另外,进一步地,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及所述第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
在此需要说明的是,针对上述实施例的具体举例及阐述内容可以参见基站侧的相对应部分,在此不再进行重复说明。
另外,进一步地,所述MAC SDU中包括如下信息中的至少一项:至少一个无线资源控制RRC消息、至少一个无线链路控制确认消息RLC ACK、至少一个下行数据包以及至少一个上行调度授权。
在此需要说明的是,针对上述实施例的具体阐述内容可以参见基站侧的相对应部分,在此不再进行重复说明。
这样,本实施例通过在SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,解决了现有技术中基于两步RACH流程进行Small data时无法支持多个用户的RLC ACK和/或上行调度等复用在一个MsgB消息中的问题,提高了资源使用效率。
此外,如图8所示,为本公开实施例中基站侧的信息传输装置的模块框图,该装置包括:
发送模块801,用于向终端发送随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的 MAC SubPDU。
在此需要说明的是,该装置能够实现基站侧的所有方法步骤及有益效果,在此不再对本实施例中与方法侧相同的方法步骤及有益效果进行具体赘述。
此外,如图9所示,为本公开实施例中基站侧的信息传输装置的模块框图,该装置包括:
接收模块901,用于接收基站发送的随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
在此需要说明的是,该装置能够实现终端侧的所有方法步骤及有益效果,在此不再对本实施例中与方法侧相同的方法步骤及有益效果进行具体赘述。
另外,如图10所示,为本公开实施例提供的基站的实体结构示意图,该基站可以包括:处理器(processor)1010、通信接口(Communications Interface)1020、存储器(memory)1030和通信总线1040,其中,处理器1010,通信接口1020,存储器1030通过通信总线1040完成相互间的通信。处理器1010可以调用存储在存储器1030上并可在处理器1010上运行的计算机程序,以执行下述步骤:
向终端发送随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
可选地,所述SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;其中,当所述M个预留比特的数值组合为第一组合时,指示终端按照预设协议仅对所述N个标识比特的信息进行解析;当所述M个预留比特的数值组合为第二组合时,指示终端对所述MAC子头中的所有比特的信息 进行解析;N和M均为大于1的正整数。
可选地,当所述M个预留比特的数值组合为第一组合时,指示所述第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
可选地,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示所述第一MAC SubPDU之后是否存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
可选地,当所述MAC子头中的所有比特的数值组合为第三组合时,指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示所述第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC SubPDU;当所述MAC子头中的所有比特的数值组合为第四组合时,指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
可选地,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息指示所述第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及所述第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
可选地,当基站确定终端不能对所述MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则所述SuccessRAR为所述MsgB消息中的第一个SuccessRAR;当基站不确定终端是否能对所述MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则所述SuccessRAR为所述MsgB消息中的第一个SuccessRAR。
可选地,MAC SDU中包括如下信息中的至少一项:至少一个无线资源控制RRC消息、至少一个无线链路控制确认消息RLC ACK、至少一个下行数据包以及至少一个上行调度授权。
在此需要说明的是,该基站能够实现基站侧的所有方法步骤及有益效果,在此不再对本实施例中与方法侧相同的方法步骤及有益效果进行具体赘述。
此外,上述的存储器1030中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案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一个存储介质中,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)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括: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)、磁碟或者光盘等各种可以存储程序代码的介质。
另外,如图11所示,为本公开实施例提供的终端的实体结构示意图,该终端可以包括:处理器(processor)1110、通信接口(Communications Interface)1120、存储器(memory)1130和通信总线1140,其中,处理器1110,通信接口1120,存储器1130通过通信总线1140完成相互间的通信。处理器1110可以调用存储在存储器1130上并可在处理器1110上运行的计算机程序,以执行下述步骤:
接收基站发送的随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
可选地,所述SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;其中,当解析得到所述M个预留比特的数值组合为第一组合时,按照预设协议仅对所述N个标识比特的信息进行解析;当解析得到所述M个预留比特的数值组合为第二组合时,对所述MAC子头中的所有比特的信息进行解析;N和M均为大于1的正整数。
可选地,当所述M个预留比特的数值组合为第一组合时,确定所述第一 MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
可选地,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后是否存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
可选地,当所述MAC子头中的所有比特的数值组合为第三组合时,确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC SubPDU;当所述MAC子头中的所有比特的数值组合为第四组合时,确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
可选地,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及所述第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
可选地,所述MAC SDU中包括如下信息中的至少一项:至少一个无线资源控制RRC消息、至少一个无线链路控制确认消息RLC ACK、至少一个下行数据包以及至少一个上行调度授权。
在此需要说明的是,该终端能够实现终端侧的所有方法步骤及有益效果,在此不再对本实施例中与方法侧相同的方法步骤及有益效果进行具体赘述。
此外,上述的存储器1130中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案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一个存储介质中,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)执行本公开各个实施例所述方 法的全部或部分步骤。而前述的存储介质包括: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)、磁碟或者光盘等各种可以存储程序代码的介质。
本公开实施例还提供一种非暂态计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现以执行上述各实施例提供的方法,并能够达到相同的技术效果,在此不再进行赘述。
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。本领域普通技术人员在不付出创造性的劳动的情况下,即可以理解并实施。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件来实现。基于这样的理解,上述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计算机软件产品的形式体现出来,该计算机软件产品可以存储在计算机可读存储介质中,如ROM/RAM、磁碟、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)执行各个实施例或者实施例的某些部分所述的方法。
最后应说明的是:以上实施例仅用以说明本公开的技术方案,而非对其限制;尽管参照前述实施例对本公开进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前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公开各实施例技术方案的精神和范围。

Claims (46)

  1. 一种信息传输方法,其特征在于,包括:
    向终端发送随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
  2. 根据权利要求1所述的信息传输方法,其特征在于,所述SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;
    其中,当所述M个预留比特的数值组合为第一组合时,指示终端按照预设协议仅对所述N个标识比特的信息进行解析;
    当所述M个预留比特的数值组合为第二组合时,指示终端对所述MAC子头中的所有比特的信息进行解析;
    N和M均为大于1的正整数。
  3. 根据权利要求2所述的信息传输方法,其特征在于,当所述M个预留比特的数值组合为第一组合时,指示所述第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  4. 根据权利要求2所述的信息传输方法,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示所述第一MAC SubPDU之后是否存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  5. 根据权利要求4所述的信息传输方法,其特征在于,
    当所述MAC子头中的所有比特的数值组合为第三组合时,指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示所述第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC SubPDU;
    当所述MAC子头中的所有比特的数值组合为第四组合时,指示所述第 一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
  6. 根据权利要求2所述的信息传输方法,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息指示所述第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及所述第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
  7. 根据权利要求2所述的信息传输方法,其特征在于,
    当基站确定终端不能对所述MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则所述SuccessRAR为所述MsgB消息中的第一个SuccessRAR;
    当基站不确定终端是否能对所述MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则所述SuccessRAR为所述MsgB消息中的第一个SuccessRAR。
  8. 根据权利要求1至7任一项所述的信息传输方法,其特征在于,MAC SDU中包括如下信息中的至少一项:至少一个无线资源控制RRC消息、至少一个无线链路控制确认消息RLC ACK、至少一个下行数据包以及至少一个上行调度授权。
  9. 一种信息传输方法,其特征在于,包括:
    接收基站发送的随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
  10. 根据权利要求9所述的信息传输方法,其特征在于,所述SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;
    其中,当解析得到所述M个预留比特的数值组合为第一组合时,按照预设协议仅对所述N个标识比特的信息进行解析;
    当解析得到所述M个预留比特的数值组合为第二组合时,对所述MAC子头中的所有比特的信息进行解析;
    N和M均为大于1的正整数。
  11. 根据权利要求10所述的信息传输方法,其特征在于,当所述M个预留比特的数值组合为第一组合时,确定所述第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  12. 根据权利要求10所述的信息传输方法,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后是否存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  13. 根据权利要求12所述的信息传输方法,其特征在于,
    当所述MAC子头中的所有比特的数值组合为第三组合时,确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC SubPDU;
    当所述MAC子头中的所有比特的数值组合为第四组合时,确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
  14. 根据权利要求10所述的信息传输方法,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及所述第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
  15. 根据权利要求9至14任一项所述的信息传输方法,其特征在于,所述MAC SDU中包括如下信息中的至少一项:至少一个无线资源控制RRC消息、至少一个无线链路控制确认消息RLC ACK、至少一个下行数据包以及至少一个上行调度授权。
  16. 一种信息传输装置,其特征在于,包括:
    发送模块,用于向终端发送随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
  17. 根据权利要求16所述的信息传输装置,其特征在于,所述SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;
    其中,当所述M个预留比特的数值组合为第一组合时,指示终端按照预设协议仅对所述N个标识比特的信息进行解析;
    当所述M个预留比特的数值组合为第二组合时,指示终端对所述MAC子头中的所有比特的信息进行解析;
    N和M均为大于1的正整数。
  18. 根据权利要求17所述的信息传输装置,其特征在于,当所述M个预留比特的数值组合为第一组合时,指示所述第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  19. 根据权利要求17所述的信息传输装置,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示所述第一MAC SubPDU之后是否存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  20. 根据权利要求19所述的信息传输方法,其特征在于,
    当所述MAC子头中的所有比特的数值组合为第三组合时,指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示所述第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC SubPDU;
    当所述MAC子头中的所有比特的数值组合为第四组合时,指示所述第 一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
  21. 根据权利要求17所述的信息传输装置,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息指示所述第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及所述第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
  22. 根据权利要求17所述的信息传输装置,其特征在于,
    当基站确定终端不能对所述MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则所述SuccessRAR为所述MsgB消息中的第一个SuccessRAR;
    当基站不确定终端是否能对所述MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则所述SuccessRAR为所述MsgB消息中的第一个SuccessRAR。
  23. 根据权利要求16至22任一项所述的信息传输装置,其特征在于,MAC SDU中包括如下信息中的至少一项:至少一个无线资源控制RRC消息、至少一个无线链路控制确认消息RLC ACK、至少一个下行数据包以及至少一个上行调度授权。
  24. 一种信息传输装置,其特征在于,包括:
    接收模块,用于接收基站发送的随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
  25. 根据权利要求24所述的信息传输装置,其特征在于,所述SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;
    其中,当解析得到所述M个预留比特的数值组合为第一组合时,按照预 设协议仅对所述N个标识比特的信息进行解析;
    当解析得到所述M个预留比特的数值组合为第二组合时,对所述MAC子头中的所有比特的信息进行解析;
    N和M均为大于1的正整数。
  26. 根据权利要求25所述的信息传输装置,其特征在于,当所述M个预留比特的数值组合为第一组合时,确定所述第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  27. 根据权利要求25所述的信息传输装置,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后是否存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  28. 根据权利要求27所述的信息传输装置,其特征在于,
    当所述MAC子头中的所有比特的数值组合为第三组合时,确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC SubPDU;
    当所述MAC子头中的所有比特的数值组合为第四组合时,确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
  29. 根据权利要求25所述的信息传输装置,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及所述第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
  30. 根据权利要求24至29任一项所述的信息传输装置,其特征在于,所述MAC SDU中包括如下信息中的至少一项:至少一个无线资源控制RRC消息、至少一个无线链路控制确认消息RLC ACK、至少一个下行数据包以及 至少一个上行调度授权。
  31. 一种基站,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时实现如下步骤:
    向终端发送随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
  32. 根据权利要求31所述的基站,其特征在于,所述SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;
    其中,当所述M个预留比特的数值组合为第一组合时,指示终端按照预设协议仅对所述N个标识比特的信息进行解析;
    当所述M个预留比特的数值组合为第二组合时,指示终端对所述MAC子头中的所有比特的信息进行解析;
    N和M均为大于1的正整数。
  33. 根据权利要求32所述的基站,其特征在于,当所述M个预留比特的数值组合为第一组合时,指示所述第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  34. 根据权利要求32所述的基站,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示所述第一MAC SubPDU之后是否存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  35. 根据权利要求34所述的基站,其特征在于,
    当所述MAC子头中的所有比特的数值组合为第三组合时,指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示所述第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC  SubPDU;
    当所述MAC子头中的所有比特的数值组合为第四组合时,指示所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且指示第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
  36. 根据权利要求32所述的基站,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息指示所述第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及所述第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
  37. 根据权利要求32所述的基站,其特征在于,
    当基站确定终端不能对所述MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则所述SuccessRAR为所述MsgB消息中的第一个SuccessRAR;
    当基站不确定终端是否能对所述MAC子头中的所有比特的信息进行解析时,若终端所对应的SuccessRAR之后存在有该终端所对应的MAC SDU,则所述SuccessRAR为所述MsgB消息中的第一个SuccessRAR。
  38. 根据权利要求31至37任一项所述的基站,其特征在于,MAC SDU中包括如下信息中的至少一项:至少一个无线资源控制RRC消息、至少一个无线链路控制确认消息RLC ACK、至少一个下行数据包以及至少一个上行调度授权。
  39. 一种终端,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时实现如下步骤:
    接收基站发送的随机接入响应MsgB消息,其中当MsgB消息中的第一媒体接入控制子协议数据单元MAC SubPDU中包含成功响应SuccessRAR时,SuccessRAR的MAC子头中携带有第一MAC SubPDU之后是否存在至少一个终端对应的第二MAC SubPDU的指示信息,第二MAC SubPDU为包含SuccessRAR或媒体接入控制服务数据单元MAC SDU的MAC SubPDU。
  40. 根据权利要求39所述的终端,其特征在于,所述SuccessRAR的MAC子头中包括有N个标识比特和M个预留比特;其中,当解析得到所述M个预留比特的数值组合为第一组合时,按照预设协议仅对所述N个标识比特的信息进行解析;当解析得到所述M个预留比特的数值组合为第二组合时,对所述MAC子头中的所有比特的信息进行解析;
    N和M均为大于1的正整数。
  41. 根据权利要求40所述的终端,其特征在于,当所述M个预留比特的数值组合为第一组合时,确定所述第一MAC SubPDU之后不存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  42. 根据权利要求40所述的终端,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后是否存在其他终端所对应的包含Success RAR的第二MAC SubPDU。
  43. 根据权利要求42所述的终端,其特征在于,
    当所述MAC子头中的所有比特的数值组合为第三组合时,确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定所述第一MAC SubPDU之后存在至少一个包含Success RAR的第二MAC SubPDU;
    当所述MAC子头中的所有比特的数值组合为第四组合时,确定所述第一MAC SubPDU之后存在有包含MAC SDU的第三MAC SubPDU,且确定第一MAC SubPDU之后不存在包含Success RAR的第二MAC SubPDU。
  44. 根据权利要求40所述的终端,其特征在于,当所述M个预留比特的数值组合为第二组合时,基于所述MAC子头中的所有比特的信息确定所述第一MAC SubPDU之后是否存在包含Success RAR的第二MAC SubPDU以及所述第一MAC SubPDU之后所存在的包含MAC SDU的第三MAC SubPDU的数量。
  45. 根据权利要求39至44任一项所述的终端,其特征在于,所述MAC  SDU中包括如下信息中的至少一项:至少一个无线资源控制RRC消息、至少一个无线链路控制确认消息RLC ACK、至少一个下行数据包以及至少一个上行调度授权。
  46. 一种非暂态计算机可读存储介质,其上存储有计算机程序,其特征在于,该计算机程序被处理器执行时实现如权利要求1至8任一项所述的方法的步骤,或执行如权利要求9至15任一项所述的方法的步骤。
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