WO2020198924A1 - 随机接入中的消息接收方法、装置、设备及存储介质 - Google Patents

随机接入中的消息接收方法、装置、设备及存储介质 Download PDF

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Publication number
WO2020198924A1
WO2020198924A1 PCT/CN2019/080388 CN2019080388W WO2020198924A1 WO 2020198924 A1 WO2020198924 A1 WO 2020198924A1 CN 2019080388 W CN2019080388 W CN 2019080388W WO 2020198924 A1 WO2020198924 A1 WO 2020198924A1
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Prior art keywords
waveform
target
signaling message
information
indicate
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PCT/CN2019/080388
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English (en)
French (fr)
Inventor
徐伟杰
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北京欧珀通信有限公司
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Application filed by 北京欧珀通信有限公司 filed Critical 北京欧珀通信有限公司
Priority to CN201980023413.2A priority Critical patent/CN112055948B/zh
Priority to PCT/CN2019/080388 priority patent/WO2020198924A1/zh
Publication of WO2020198924A1 publication Critical patent/WO2020198924A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path

Definitions

  • This application relates to the field of communication technology, and in particular to a method, device, equipment and storage medium for receiving messages in random access.
  • the random access process generally includes a four-step process. In order to shorten the time delay of the random access process, it is currently proposed to compress the four-step random access process into a two-step random access process.
  • the two-step random access process generally includes: UE (User Equipment) sending MsgA to the access network device, and the access network device sending the response message MsgB to the UE after receiving the MsgA.
  • UE User Equipment
  • the access network device needs to configure the PUSCH waveform corresponding to the MsgA for the UE.
  • how to determine the PUSCH waveform corresponding to MsgA has not yet been proposed. This problem becomes related The focus of field research.
  • the embodiments of the present application provide a message receiving method, device, device and storage medium in random access, which can be used to solve the problem of how to determine the PUSCH waveform corresponding to MsgA.
  • the technical solution is as follows:
  • a message receiving method in random access which is applied to a terminal, and the method includes: receiving waveform configuration information, where the waveform configuration information is used to indicate the physical uplink in the MsgA of the random access process The target waveform used by the shared channel PUSCH.
  • the waveform configuration information includes a system broadcast message
  • the system broadcast message includes a target information field for indicating the target waveform.
  • the waveform configuration information includes a first signaling message, and the first signaling message includes a target information field for indicating the target waveform.
  • the first signaling message is a radio resource control RRC message.
  • the target information field when the target information field includes the first configuration information, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field includes In the second configuration information, the target information field is used to indicate that the target waveform is a second waveform; wherein the second waveform is different from the first waveform.
  • the target information field when the target information field is not empty, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field is empty The target information field is used to indicate that the target waveform is a second waveform; wherein, the second waveform is different from the first waveform.
  • the waveform configuration information includes guard interval GT indication information, and the GT indication information is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH.
  • the GT indication information when the transmission time interval indicated by the GT indication information is less than a target value, the GT indication information is used to indicate that the target waveform is an orthogonal discrete Fourier transform Frequency division multiplexing DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, the GT indication information is used to indicate that the target waveform is based on a cyclic prefix Orthogonal frequency division multiplexing CP-OFDM waveform.
  • the target value is predefined, or the target value is indicated by an access network device.
  • the waveform configuration information includes GT indication information, and also includes a system broadcast message or a first signaling message; wherein, the GT indication information is used to indicate the preamble in the MsgA
  • the transmission time interval between the code and the PUSCH, and the system broadcast message or the first signaling message includes a target information field for indicating the target waveform.
  • the target waveform is a DFTs-OFDM waveform; or, when the GT indication information indicates When the transmission time interval is greater than or equal to the target value, the target waveform is determined according to the target information field.
  • the waveform configuration information includes a system broadcast message or a first signaling message
  • the system broadcast message or the first signaling message includes information for indicating the target waveform Target information field
  • the method further includes: obtaining predefined GT indication information, the GT indication information is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH; when the GT indication information When the indicated transmission time interval is less than the target value, it is determined that the target waveform is a DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, according to the The target information field determines the target waveform.
  • the method further includes: sending the MsgA, wherein the PUSCH included in the MsgA is sent using the target waveform.
  • the method further includes: receiving a second signaling message, where the second signaling message is used to indicate whether to update the target waveform; The second signaling message determines whether to update the target waveform.
  • the determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes the first indication information, determining to update the Target waveform; or, when the second signaling message includes second indication information, it is determined not to update the target waveform.
  • the determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes update indication information, determining to update the target Waveform; or, when the second signaling message does not include the update indication information, it is determined not to update the target waveform.
  • a message receiving method in random access is provided, which is applied to an access network device.
  • the method includes: sending waveform configuration information, where the waveform configuration information is used to indicate the MsgA in the random access process The target waveform used by the physical uplink shared channel PUSCH.
  • the waveform configuration information includes a system broadcast message
  • the system broadcast message includes a target information field for indicating the target waveform.
  • the waveform configuration information includes a first signaling message, and the first signaling message includes a target information field for indicating the target waveform.
  • the first signaling message is a radio resource control RRC message.
  • the target information field when the target information field includes the first configuration information, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field includes In the second configuration information, the target information field is used to indicate that the target waveform is a second waveform; wherein the second waveform is different from the first waveform.
  • the target information field when the target information field is not empty, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field is empty The target information field is used to indicate that the target waveform is a second waveform; wherein, the second waveform is different from the first waveform.
  • the waveform configuration information includes guard interval GT indication information, and the GT indication information is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH.
  • the GT indication information when the transmission time interval indicated by the GT indication information is less than a target value, the GT indication information is used to indicate that the target waveform is an orthogonal discrete Fourier transform Frequency division multiplexing DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, the GT indication information is used to indicate that the target waveform is based on a cyclic prefix Orthogonal frequency division multiplexing CP-OFDM waveform.
  • the target value is predefined, or the target value is indicated by an access network device.
  • the waveform configuration information includes GT indication information, and also includes a system broadcast message or a first signaling message; wherein, the GT indication information is used to indicate the preamble in the MsgA
  • the transmission time interval between the code and the PUSCH, and the system broadcast message or the first signaling message includes a target information field for indicating the target waveform.
  • the method further includes: receiving the MsgA, where the MsgA includes the PUSCH transmitted using the target waveform.
  • the method further includes: sending a second signaling message, where the second signaling message is used to indicate whether to update the target waveform.
  • the second signaling message when the second signaling message includes the first indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message When the message includes the second indication information, the second signaling message is used to indicate not to update the target waveform.
  • the second signaling message when the second signaling message includes update indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message When the message does not include the update indication information, the second signaling message is used to indicate not to update the target waveform.
  • a device for receiving messages in random access which is configured in a terminal, and the device includes:
  • the receiving module is configured to receive waveform configuration information, where the waveform configuration information is used to indicate the target waveform adopted by the physical uplink shared channel PUSCH in the MsgA of the random access process.
  • the waveform configuration information includes a system broadcast message
  • the system broadcast message includes a target information field for indicating the target waveform.
  • the waveform configuration information includes a first signaling message, and the first signaling message includes a target information field for indicating the target waveform.
  • the first signaling message is a radio resource control RRC message.
  • the target information field when the target information field includes the first configuration information, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field includes In the second configuration information, the target information field is used to indicate that the target waveform is a second waveform; wherein the second waveform is different from the first waveform.
  • the target information field when the target information field is not empty, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field is empty The target information field is used to indicate that the target waveform is a second waveform; wherein, the second waveform is different from the first waveform.
  • the waveform configuration information includes guard interval GT indication information, and the GT indication information is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH.
  • the GT indication information when the transmission time interval indicated by the GT indication information is less than a target value, the GT indication information is used to indicate that the target waveform is an orthogonal discrete Fourier transform Frequency division multiplexing DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, the GT indication information is used to indicate that the target waveform is based on a cyclic prefix Orthogonal frequency division multiplexing CP-OFDM waveform.
  • the target value is predefined, or the target value is indicated by an access network device.
  • the waveform configuration information includes GT indication information, and also includes a system broadcast message or a first signaling message; wherein, the GT indication information is used to indicate the preamble in the MsgA
  • the transmission time interval between the code and the PUSCH, and the system broadcast message or the first signaling message includes a target information field for indicating the target waveform.
  • the receiving module is further configured to: when the transmission time interval indicated by the GT indication information is less than a target value, determine that the target waveform is a DFTs-OFDM waveform; or, When the transmission time interval indicated by the GT indication information is greater than or equal to the target value, the target waveform is determined according to the target information field.
  • the receiving module is further configured to: when the waveform configuration information includes a system broadcast message or a first signaling message, the system broadcast message or the first signaling message is When the target information field used to indicate the target waveform is included, the predefined GT indication information is obtained, and the GT indication information is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH; When the transmission time interval indicated by the GT indication information is less than the target value, it is determined that the target waveform is a DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value , Determining the target waveform according to the target information domain.
  • the apparatus further includes: a first sending module configured to send the MsgA, wherein the PUSCH included in the MsgA is sent using the target waveform.
  • the receiving module is further configured to: receive a second signaling message, where the second signaling message is used to indicate whether to update the target waveform; according to the second signaling The message determines whether to update the target waveform.
  • the receiving module is configured to: when the second signaling message includes the first indication information, determine to update the target waveform; or, when the second signaling message When the second indication information is included, it is determined not to update the target waveform.
  • the receiving module is configured to: when the second signaling message includes update indication information, determine to update the target waveform; or, when the second signaling message does not When the update instruction information is included, it is determined not to update the target waveform.
  • a message receiving device in random access is provided, which is configured in an access network device, and the device includes: a second sending module for sending waveform configuration information, the waveform configuration information being used to indicate The target waveform used by the physical uplink shared channel PUSCH in the MsgA of the random access process.
  • the waveform configuration information includes a system broadcast message
  • the system broadcast message includes a target information field for indicating the target waveform.
  • the waveform configuration information includes a first signaling message, and the first signaling message includes a target information field for indicating the target waveform.
  • the first signaling message is a radio resource control RRC message.
  • the target information field when the target information field includes the first configuration information, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field includes In the second configuration information, the target information field is used to indicate that the target waveform is a second waveform; wherein the second waveform is different from the first waveform.
  • the target information field when the target information field is not empty, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field is empty The target information field is used to indicate that the target waveform is a second waveform; wherein, the second waveform is different from the first waveform.
  • the waveform configuration information includes guard interval GT indication information, and the GT indication information is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH.
  • the GT indication information when the transmission time interval indicated by the GT indication information is less than a target value, the GT indication information is used to indicate that the target waveform is an orthogonal discrete Fourier transform Frequency division multiplexing DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, the GT indication information is used to indicate that the target waveform is based on a cyclic prefix Orthogonal frequency division multiplexing CP-OFDM waveform.
  • the target value is predefined, or the target value is indicated by an access network device.
  • the waveform configuration information includes GT indication information, and also includes a system broadcast message or a first signaling message; wherein, the GT indication information is used to indicate the preamble in the MsgA
  • the transmission time interval between the code and the PUSCH, and the system broadcast message or the first signaling message includes a target information field for indicating the target waveform.
  • the second sending module is further configured to: receive the MsgA, where the MsgA includes the PUSCH sent using the target waveform.
  • the second sending module is further configured to send a second signaling message, where the second signaling message is used to indicate whether to update the target waveform.
  • the second signaling message when the second signaling message includes the first indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message When the message includes the second indication information, the second signaling message is used to indicate not to update the target waveform.
  • the second signaling message when the second signaling message includes update indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message When the message does not include the update indication information, the second signaling message is used to indicate not to update the target waveform.
  • a communication system including a terminal and an access network device, the terminal includes the device described in any one of the foregoing third aspects, and the access network device includes any device described in the fourth aspect.
  • a terminal in a sixth aspect, includes a processor and a memory, the memory stores at least one instruction, and the at least one instruction is used to be executed by the processor to implement any one of the above-mentioned first aspect The method described.
  • an access network device in a seventh aspect, includes a processor and a memory, the memory stores at least one instruction, and the at least one instruction is used to be executed by the processor to implement the foregoing The method of any one of the second aspect.
  • a computer-readable storage medium stores at least one instruction, and the at least one instruction is used to be executed by a processor to implement any one of the above-mentioned first aspects.
  • a computer-readable storage medium stores at least one instruction, and the at least one instruction is used to be executed by a processor to implement any one of the above-mentioned second aspects.
  • a computer program product containing instructions which when run on a computer, causes the computer to execute the method described in any one of the above-mentioned first aspects.
  • a computer program product containing instructions which when run on a computer, causes the computer to execute the method described in any of the above second aspects.
  • the terminal receives the waveform configuration information sent by the access network device, and the waveform configuration information is used to indicate the target waveform adopted by the PUSCH in the MsgA of the random access process.
  • the waveform configuration information Based on the waveform configuration information, determine the target waveform, and use the target waveform to send MsgA to the access network device, where MsgA contains uplink data. That is, the embodiment of the present application determines which waveform is used to upload uplink data by receiving the waveform configuration information sent by the access network device.
  • FIG. 1 is a schematic diagram of a channel structure of MsgA provided by an exemplary embodiment of the present application
  • Fig. 2 is a flowchart of a four-step random access process provided by an exemplary embodiment of the present application
  • Fig. 3 is a schematic diagram of an implementation environment provided by an exemplary embodiment of the present application.
  • Fig. 4 is a flowchart of a message receiving method in random access provided by an exemplary embodiment of the present application
  • FIG. 5 is a flowchart of a method for receiving messages in random access according to another exemplary embodiment of the present application.
  • FIG. 6 is a flowchart of a method for receiving a message in random access according to another exemplary embodiment of the present application.
  • FIG. 7 is a flowchart of a message receiving method in random access provided by another exemplary embodiment of the present application.
  • FIG. 8 is a schematic diagram of a channel structure of MsgA provided by an exemplary embodiment of the present application.
  • FIG. 9 is a flowchart of a method for receiving a message in random access according to another exemplary embodiment of the present application.
  • FIG. 10 is a structural diagram of a message receiving apparatus in random access provided by an exemplary embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a message receiving apparatus in random access provided by another exemplary embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a message receiving apparatus in random access provided by another exemplary embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.
  • Fig. 14 is a schematic structural diagram of an access network device provided by an exemplary embodiment of the present application.
  • PUSCH Physical Uplink Shared Channel
  • PUSCH Physical Uplink Shared Channel
  • PUSCH waveform It can be used to transmit uplink data in MsgA.
  • the types of PUSCH waveforms generally include DFTs-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing) waveforms and CP-OFDM (Cyclic Prefix Orthogonal Frequency Division Multiplexing, cyclic prefix-based orthogonal frequency division multiplexing) waveform, where the DFTs-OFDM waveform can ensure good coverage performance when the channel quality is poor, and the CP-OFDM waveform can This enables flexible allocation of PUSCH resources.
  • DFTs-OFDM Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing
  • CP-OFDM Cyclic Prefix Orthogonal Frequency Division Multiplexing, cyclic prefix-based orthogonal frequency division multiplexing
  • GT (Guard Time, guard interval), refers to the time interval between the preamble and PUSCH in MsgA.
  • the currently proposed channel structure for msgA may be as shown in Figure 1, including a time-first preamble and the CP (Cyclic Prefix) part of the preamble, as well as a time-after PUSCH part and the two parts.
  • a GT between the two parties can be understood as sending uplink data after sending the preamble.
  • the random access process is briefly introduced by taking the UE (also called terminal) accessing the access network equipment as an example. Please refer to Figure 2.
  • the random access process usually includes the following four steps:
  • the first step the UE sends Msg1 to the access network device, where the Msg1 is a random access preamble sequence (ie, a preamble).
  • the UE sends Msg1 to the access network device to notify the access network device that there is a random access request, and at the same time enables the access network device to estimate the transmission delay between itself and the UE, and use this to calibrate the uplink time.
  • the resource information for sending Msg1 can be obtained through RACH (Random Access Channel, random access channel) resource configuration.
  • RACH resource configuration information configured for UE access is defined, including 256 types.
  • the cell can indicate the RACH resource configuration information used by itself to the UE in a system message.
  • Each kind of RACH resource configuration information includes preamble format, period, radio frame offset, subframe number in radio frame, starting symbol in subframe, number of PRACH slots in subframe, PRACH timing in PRACH slot The number of PRACH timing duration. Through this information, the time, frequency, and code information of the PRACH resource can be determined. In this way, the UE can send Msg1 on the corresponding PRACH resource according to the RACH resource configuration information indicated by the access network device.
  • Step 2 After the access network equipment detects the Msg1 sent by the UE, it sends a RAR (Random Access Response) (Msg2) to the UE to inform the UE of the uplink resources that can be used when sending the next message (Msg3) information.
  • RAR Random Access Response
  • one RAR may include response messages to multiple UEs that send preambles, and the response message to each UE includes RAPID, Msg3 resource allocation information used by each UE, and TA (Tracking Area, tracking area) Information etc.
  • the access network device may also perform other operations, such as assigning a temporary RNTI (Radio Network Temporary Identity, wireless network temporary identity) to the UE, etc., which will not be introduced here.
  • RNTI Radio Network Temporary Identity, wireless network temporary identity
  • the third step the UE receives the RAR, and sends Msg3 to the access network device on the uplink resource indicated by the RAR.
  • the UE may monitor the PDCCH in a search space within a RAR time window corresponding to the RAR to receive the RAR.
  • the RAR time window can be configured by high-level parameters, and the configuration information of the search space of the PDCCH can be indicated by a system message.
  • the UE does not receive the RAR sent by the access network device within the RAR time window, it is considered that this random access procedure has failed. If the UE receives a RAR and the preamble index in the RAR is the same as the preamble index sent by the UE, it is considered that the RAR has been successfully received. At this time, the UE can stop monitoring the RAR, and the UE sends Msg3 to the access network device.
  • the Msg3 may carry a UE-specific temporary identification information or a UE identifier from the core network.
  • the UE identifier may be S-TMSI (Serving-Temporary Mobile Subscriber Identity, temporary mobile subscriber identity) or a random number.
  • Step 4 After the access network device receives Msg3, it sends Msg4 to the UE.
  • the Msg4 includes a contention resolution message and also includes information about the uplink transmission resources allocated to the UE.
  • the access network device will carry a unique flag in the Msg4 to indicate that the competition wins. ⁇ UE.
  • the UE receives Msg4 sent by the base station, it will detect whether the temporary identification information sent by the UE in Msg3 is included in the contention resolution message sent by the access network equipment. If it is included, it indicates that the random access process of the UE is successful, otherwise it is considered that the random process has failed. The UE needs to initiate the random access procedure again from the first step.
  • the two-step random access process includes the UE sending MsgA to the access network device and the access network device sending MsgB to the UE.
  • the possible design of the MsgA includes a preamble and uplink data.
  • the uplink data may be carried by PUSCH.
  • the uplink data may include UE identification information (such as temporary identification information) and RRC (Radio Resource Control (Radio Resource Control) request reason, etc.
  • the MsgA is equivalent to Msg1 and Msg3 in a four-step random access process.
  • the MsgB includes conflict resolution information and TA information, C-RNTI (Cell Radio Network Temporary Identifier, cell radio network temporary identifier) allocation information, etc., and the MsgB is equivalent to the four-step random access process.
  • the embodiment of the present application provides a method for receiving a message in random access, and the method can be used to determine the waveform adopted by the PUSCH in MsgA.
  • FIG. 3 is a schematic diagram showing an implementation environment according to an exemplary embodiment.
  • the implementation environment mainly includes a terminal 310 and an access network device 320, and a communication connection can be established between the terminal 310 and the access network device 320.
  • the terminal 310 may initiate a random access request to the access network device 320 to request random access to the access network device 320.
  • the access network device 320 may provide services for the terminal 310.
  • the service may include an access service, a data transmission service, and the like.
  • the access network device 320 may be a base station or other device.
  • FIG. 4 is a flowchart of a method for receiving messages in random access according to an exemplary embodiment.
  • the method can be applied in the above implementation environment.
  • the method can include the following implementation steps :
  • Step 401 The access network device sends waveform configuration information to the terminal, where the waveform configuration information is used to indicate the target waveform adopted by the PUSCH in the MsgA of the random access process.
  • the access network device can configure the target waveform used by the PUSCH in the MsgA of the random access process for the terminal, and then the access network device can send the configured
  • the waveform configuration information of the target waveform is used to instruct the terminal to use which target waveform to send the PUSCH in the MsgA during the random access process.
  • Step 402 The terminal receives the waveform configuration information sent by the access network device.
  • Step 403 The terminal sends the MsgA to the access network device, where the PUSCH included in the MsgA is sent using the target waveform.
  • the terminal uses the target waveform to send uplink data in MsgA (ie, PUSCH) on the PUSCH.
  • the uplink data may carry the identification information of the UE and the reason for the RRC request.
  • the target waveform may be a DFTs-OFDM waveform, or the target waveform may also be a CP-OFDM waveform.
  • Step 404 The access network device receives the MsgA sent by the terminal, and the MsgA includes the PUSCH sent using the target waveform.
  • the terminal receives the waveform configuration information sent by the access network device.
  • the waveform configuration information is used to indicate the target waveform adopted by the PUSCH in the MsgA of the random access process.
  • the Target waveform based on the waveform configuration information, the Target waveform, and use the target waveform to send MsgA to the access network device, where MsgA contains uplink data. That is, the embodiment of the present application determines which waveform is used to upload uplink data by receiving the waveform configuration information sent by the access network device.
  • FIG. 5 is a flowchart of a method for receiving messages in random access according to an exemplary embodiment.
  • the method can be applied in the foregoing implementation environment.
  • the method can include the following implementation steps :
  • Step 501 The access network device sends waveform configuration information to the terminal, where the waveform configuration information is used to indicate the target waveform adopted by the PUSCH in the MsgA of the random access process.
  • the access network device can configure the target waveform used by the PUSCH in the MsgA of the random access process for the terminal, and then the access network device can send the configured
  • the waveform configuration information of the target waveform is used to instruct the terminal to use which target waveform to send the PUSCH in the MsgA during the random access process.
  • the waveform configuration information includes a system broadcast message, and the system broadcast message includes a target information field for indicating a target waveform.
  • the system broadcast message can be used to instruct the terminal to use which target waveform.
  • the waveform configuration information may be a system broadcast message, and further, a target information field may be added to the system broadcast message to indicate the target waveform through the target information field.
  • the waveform configuration information includes system broadcast messages
  • the following situations may exist:
  • the first case when the target information field contains the first configuration information, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field contains the second configuration information, the target information field is used At indicating that the target waveform is the second waveform. Wherein, the second waveform is different from the first waveform.
  • the first waveform may be a DFTs-OFDM waveform or a CP-OFDM waveform.
  • the second waveform may be a CP-OFDM waveform or a DFTs-OFDM waveform, and the first waveform and the second waveform are different.
  • the first waveform is a DFTs-OFDM waveform
  • the second waveform is a CP-OFDM waveform.
  • the first configuration information may be description information of a DFTs-OFDM waveform
  • the second configuration information may be description information of a CP-OFDM waveform.
  • the first configuration information may be a first value
  • the second configuration information may be a second value.
  • the first value is "1" and the second value is "0".
  • the target information field is used to indicate that the target waveform is a DFTs-OFDM waveform
  • the target information field contains "0"
  • the target information field is used to indicate that the target waveform is CP-OFDM Waveform.
  • the second case when the target information field is not empty, the target information field is used to indicate that the target waveform is the first waveform; or when the target information field is empty, the target information field is used to indicate the target
  • the waveform is the second waveform. Wherein, the second waveform is different from the first waveform.
  • different waveforms can be indicated by carrying information in the target information field or by default configuration.
  • the target information field contains bit information, that is, it is not empty
  • the target information field is used to indicate that the target waveform is a DFTs-OFDM waveform.
  • the target information field is not empty and When the content is "1", the target information field is used to indicate that the target waveform is a DFTs-OFDM waveform.
  • the target information field does not include bit information, that is, it is empty, the target information field is used to indicate that the target waveform is a CP-OFDM waveform.
  • system broadcast message may also include RMSI (Remaining Minimum System Information), OSI (Open System Interconnection, Open System Interconnection), etc., which are not limited in this embodiment of the application.
  • RMSI Remaining Minimum System Information
  • OSI Open System Interconnection, Open System Interconnection
  • the communication system when it supports both the four-step random access process and the two-step random access process, it can also directly use the PUSCH waveform in Msg3 of the four-step random access process, that is, the system
  • the broadcast message indicates which waveform is used for the PUSCH in the Msg3 of the four-step random access process, and which waveform is used for the PUSCH in the MsgA.
  • the overhead of the PUSCH waveform indication in the MsgA of the two-step random access process can be saved.
  • Step 502 The terminal receives the waveform configuration information sent by the access network device.
  • the terminal receives the system broadcast message, thereby realizing the reception of the waveform configuration information.
  • Step 503 The terminal determines the target waveform based on the waveform configuration information.
  • the realization methods of determining the target waveform based on the waveform configuration information are also different.
  • the implementation may include the following situations:
  • the first case obtaining configuration information from the target information field included in the system broadcast message, and when the configuration information is the first configuration information, it is determined that the target waveform is the first waveform; when the configuration information is the second configuration information, It is determined that the target waveform is a second waveform, and the first waveform is different from the second waveform.
  • the terminal obtains the configuration information from the target information field and determines that the configuration information is the first configuration information It is also the second configuration information to determine whether the target waveform is the first waveform or the second waveform.
  • the second case query whether the target information field included in the system broadcast message is empty. When the target information field is not empty, the target waveform is determined to be the first waveform, and when the target information field is empty, the target is determined The waveform is the second waveform.
  • the terminal queries whether the target information field is empty and determines that the target waveform is the first waveform. The first waveform is still the second waveform.
  • Step 504 The terminal sends the MsgA to the access network device, where the PUSCH included in the MsgA is sent using the target waveform.
  • the terminal uses the target waveform to send uplink data in MsgA (ie, PUSCH) on the PUSCH.
  • the uplink data may carry the identification information of the UE and the reason for the RRC request.
  • Step 505 The access network device receives the MsgA sent by the terminal, and the MsgA includes the PUSCH sent using the target waveform.
  • the access network device may also send a second signaling message to the terminal, where the second signaling message may be used to indicate whether to update the target waveform.
  • the terminal receives the second signaling message sent by the access network device, and determines whether to update the target waveform according to the second signaling message.
  • the access network device when the access network device wishes to update the target waveform under certain conditions, it can be instructed by the second signaling message, so that the terminal updates the target waveform after receiving the second signaling message. Further, the access network device may indicate whether to update the target waveform when the terminal is in the connected state through the second signaling message. In other words, for connected terminals, there may also be a need to use a two-step random access process for random access, such as terminal handover, etc. At this time, the access network device can pass the second signaling according to the channel command Message to update instructions.
  • the second signaling message may be an RRC message, that is, during the RRC connection process, the RRC message may be used to indicate whether to update the target waveform.
  • the second signaling message when the second signaling message includes the first indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message includes the second indication information, the The second signaling message is used to indicate not to update the target waveform.
  • the access network device may use different indication information to indicate whether to update the target waveform.
  • the first indication information may be "1”.
  • the second signaling message is used to indicate the update The target waveform; the second indication information may be "0", at this time, the second signaling message is used to indicate not to update the target waveform, that is, to maintain the waveform unchanged.
  • the first indication information can be set in the RRC message to indicate The terminal updates the target waveform to a CP-OFDM waveform.
  • the access network equipment detects that the terminal is located at the edge of the cell and the channel quality is poor, in order to ensure better coverage, if the current target waveform is a CP-OFDM waveform, the first indication information can be set in the RRC message. To instruct the terminal to update the target waveform as a DFTs-OFDM waveform.
  • determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes the first indication information, determining to update the target waveform; or, when the second signaling message includes the second When indicating information, make sure not to update the target waveform.
  • the second signaling message when the second signaling message includes update indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message does not include the update indication information, the The second signaling message is used to indicate not to update the target waveform.
  • the access network device may also indicate whether to update the target waveform by including update indication information or default configuration in the second signaling message. For example, when the access network equipment detects that the terminal is located at the edge of the cell and the channel quality is not good, if the current target waveform is a DFTs-OFDM waveform, then you can not set the update indication information in the RRC message to indicate through the RRC message The terminal does not update the target waveform.
  • determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes update indication information, determining to update the target waveform; or, when the second signaling message does not include update indication When information, make sure not to update the target waveform.
  • the access network device indicates the target waveform used by the PUSCH in the MsgA of the random access process through a system broadcast message, so that the terminal can determine which target waveform to upload after receiving the system broadcast message Uplink data in MsgA.
  • the second signaling message can be used to indicate, which improves the flexibility of waveform usage.
  • FIG. 6 is a flowchart of a method for receiving messages in random access according to an exemplary embodiment.
  • the method can be applied in the foregoing implementation environment.
  • the method can include the following implementation steps :
  • Step 601 The access network device sends waveform configuration information to the terminal, where the waveform configuration information is used to indicate the target waveform adopted by the PUSCH in the MsgA of the random access process.
  • the access network device can configure the target waveform used by the PUSCH in the MsgA of the random access process for the terminal, and then the access network device can send the configured
  • the waveform configuration information of the target waveform is used to instruct the terminal to use which target waveform to send the PUSCH in the MsgA during the random access process.
  • the waveform configuration information includes a first signaling message, and the first signaling message includes a target information field for indicating a target waveform.
  • the first signaling message may also be used to indicate which target waveform the terminal uses.
  • the target waveform may be indicated by the target information field in the first signaling message.
  • the first signaling message may be an RRC message, or the first signaling message may also be a MAC (Media Access Control, Media Access Control) CE (Control Element, control element) message.
  • the waveform configuration information includes the first signaling message
  • the following situations may exist:
  • the first case when the target information field contains the first configuration information, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field contains the second configuration information, the target information field is used At indicating that the target waveform is the second waveform. Wherein, the second waveform is different from the first waveform.
  • the first waveform may be a DFTs-OFDM waveform or a CP-OFDM waveform.
  • the second waveform may be a CP-OFDM waveform or a DFTs-OFDM waveform, and the first waveform and the second waveform are different.
  • the first waveform is a DFTs-OFDM waveform
  • the second waveform is a CP-OFDM waveform.
  • the first configuration information may be description information of a DFTs-OFDM waveform
  • the second configuration information may be description information of a CP-OFDM waveform.
  • the first configuration information may be a first value
  • the second configuration information may be a second value.
  • the first value is "1" and the second value is "0".
  • the target information field is used to indicate that the target waveform is a DFTs-OFDM waveform
  • the target information field contains "0"
  • the target information field is used to indicate that the target waveform is CP-OFDM Waveform.
  • the second case when the target information field is not empty, the target information field is used to indicate that the target waveform is the first waveform; or when the target information field is empty, the target information field is used to indicate the target
  • the waveform is the second waveform. Wherein, the second waveform is different from the first waveform.
  • Step 602 The terminal receives the waveform configuration information sent by the access network device.
  • the terminal receives the first signaling message to realize the reception of the waveform configuration information.
  • Step 603 The terminal determines the target waveform based on the waveform configuration information.
  • the realization methods of determining the target waveform based on the waveform configuration information are also different.
  • the implementation may include the following situations:
  • the first case obtaining configuration information from the target information field included in the first signaling message, and when the configuration information is the first configuration information, it is determined that the target waveform is the first waveform; when the configuration information is the second configuration information When determining that the target waveform is a second waveform, the first waveform is different from the second waveform.
  • the terminal obtains the configuration information from the target information field and determines that the configuration information is the first configuration information It is also the second configuration information to determine whether the target waveform is the first waveform or the second waveform.
  • the second case query whether the target information field included in the first signaling message is empty, when the target information field is not empty, determine that the target waveform is the first waveform, and when the target information field is empty, determine The target waveform is the second waveform.
  • the terminal queries whether the target information field is empty and determines that the target waveform is the first waveform. The first waveform is still the second waveform.
  • Step 604 The terminal sends the MsgA to the access network device, where the PUSCH included in the MsgA is sent using the target waveform.
  • the terminal uses the target waveform to send uplink data in MsgA (ie, PUSCH) on the PUSCH.
  • the uplink data may carry the identification information of the UE and the reason for the RRC request.
  • Step 605 The access network device receives the MsgA sent by the terminal, and the MsgA includes the PUSCH sent using the target waveform.
  • the access network device may also send a second signaling message to the terminal, where the second signaling message may be used to indicate whether to update the target waveform.
  • the terminal receives the second signaling message sent by the access network device, and determines whether to update the target waveform according to the second signaling message.
  • the access network device can pass the second signaling according to the channel command Message to update instructions.
  • the second signaling message may be an RRC message, that is, during the RRC connection process, the RRC message may be used to indicate whether to update the target waveform.
  • the second signaling message when the second signaling message includes the first indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message includes the second indication information, the The second signaling message is used to indicate not to update the target waveform.
  • the access network device when the access network device wishes to update the target waveform under certain conditions, it can be instructed by the second signaling message, so that the terminal updates the target waveform after receiving the second signaling message. Further, the access network device may indicate whether to update the target waveform when the terminal is in the connected state through the second signaling message. That is, the access network device may use different indication information to indicate whether to update the target waveform. For example, the first indication information may be "1". At this time, the second signaling message is used to indicate the update The target waveform; the second indication information may be "0", at this time, the second signaling message is used to indicate not to update the target waveform, that is, to maintain the waveform unchanged.
  • the first indication information can be set in the RRC message to indicate The terminal updates the target waveform to a CP-OFDM waveform.
  • the access network equipment detects that the terminal is located at the edge of the cell and the channel quality is poor, in order to ensure better coverage, if the current target waveform is a CP-OFDM waveform, the first indication information can be set in the RRC message. To instruct the terminal to update the target waveform as a DFTs-OFDM waveform.
  • determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes the first indication information, determining to update the target waveform; or, when the second signaling message includes the second When indicating information, make sure not to update the target waveform.
  • the second signaling message when the second signaling message includes update indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message does not include the update indication information, the The second signaling message is used to indicate not to update the target waveform.
  • the access network device may also indicate whether to update the target waveform by including update indication information or default configuration in the second signaling message. For example, when the access network equipment detects that the terminal is located at the edge of the cell and the channel quality is not good, if the current target waveform is a DFTs-OFDM waveform, then you can not set the update indication information in the RRC message to indicate through the RRC message The terminal does not update the target waveform.
  • determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes update indication information, determining to update the target waveform; or, when the second signaling message does not include update indication When information, make sure not to update the target waveform.
  • the access network device indicates the target waveform used by the PUSCH in the MsgA of the random access process through a signaling message, so that the terminal can determine which target waveform to use for uploading after receiving the signaling message Uplink data in MsgA.
  • the second signaling message can be used to indicate, which improves the flexibility of waveform usage.
  • FIG. 7 is a flowchart of a method for receiving messages in random access according to an exemplary embodiment.
  • the method can be applied in the above implementation environment.
  • the method can include the following implementation steps :
  • Step 701 The access network device sends waveform configuration information to the terminal, where the waveform configuration information is used to indicate the target waveform adopted by the PUSCH in the MsgA of the random access process.
  • the access network device can configure the target waveform used by the PUSCH in the MsgA of the random access process for the terminal, and then the access network device can send the configured
  • the waveform configuration information of the target waveform is used to instruct the terminal to use which target waveform to send the PUSCH in the MsgA during the random access process.
  • the waveform configuration information includes GT indication information, and the GT indication information is used to indicate the transmission time interval between the preamble in MsgA and the PUSCH.
  • the size of the GT may be related to factors such as the radius of the cell, the working frequency band attribute, or the resource configuration of MsgA. For example, when the cell radius is large, the value of the GT is generally large, and when the cell radius is small, a smaller GT is required.
  • the working frequency band is an unlicensed frequency band
  • LBT listen before talk
  • the value of GT between the preamble of MsgA and PUSCH may also vary with the configuration of MsgA.
  • the preamble of the same resource and different time resources GTs between PUSCHs are also different, please refer to Figure 8.
  • GT1 between preamble and PUSCH1 may be smaller than GT2 between preamble1 and PUSCH2.
  • the preamble in MsgA uses the DFTs-OFDM waveform. If the PUSCH uses the DFTs-OFDM waveform, it means that the terminal must use different target waveforms for the preamble and uplink data in the MsgA.
  • the terminal It is necessary to convert or adjust the waveform between the preamble and uplink data in the sending of msgA.
  • baseband waveform processing such as FFT (Fast Fourier Transformation, Discrete Fourier Transform), and radio transmission processing.
  • the terminal needs to adopt different implementation methods for two different waveforms, so the transmission
  • a certain adjustment time may be required in the middle. Therefore, in order to ensure that the terminal does not have any problems during the processing, it can be considered here to determine the waveform adopted by the PUSCH based on the size relationship between the adjustment time and the GT.
  • the minimum adjustment time required for the two waveform adjustments is the target value, it can be recorded as deltaT here.
  • the GT indication information when the transmission time interval indicated by the GT indication information is less than the target value, the GT indication information is used to indicate that the target waveform is a DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information When greater than or equal to the target value, the GT indication information is used to indicate that the target waveform is a CP-OFDM waveform.
  • the terminal configuration can be the same as the preamble. ⁇ waveform.
  • the target waveform is also a DFTs-OFDM waveform.
  • a waveform different from the preamble may be used.
  • the target waveform is a CP-OFDM waveform.
  • the target value may be predefined, or the target value may also be indicated by the access network device, and further, when the target value may also be indicated by the access network device, the access network device
  • the device may indicate through a signaling message.
  • the signaling message may be a system broadcast message or an RRC message, which is not limited in the embodiment of the present application.
  • the above description is only based on an example in which the GT indicator information is used to indicate that the target waveform is a CP-OFDM waveform when the transmission time interval indicated by the GT indicator information is greater than or equal to the target value.
  • the same waveform as the preamble can also be used, that is, the target waveform can also be a DFTs-OFDM waveform. The embodiment does not limit this.
  • Step 702 The terminal receives the waveform configuration information sent by the access network device.
  • the terminal receives the first signaling message to realize the reception of the waveform configuration information.
  • Step 703 The terminal determines the target waveform based on the waveform configuration information.
  • determining the realization of the target waveform based on the waveform configuration information may include determining the target waveform based on GT indication information. Further, when the transmission time interval indicated by the GT indication information is less than the target value, it is determined that the target waveform is a DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, Determine that the target waveform is a CP-OFDM waveform.
  • the target waveform is determined to be the same as the waveform used by the preamble.
  • the target waveform is DFTs-OFDM.
  • the transmission time interval indicated by the indication information is greater than or equal to the target value, a waveform different from the preamble can be used. Therefore, the target waveform is determined to be a CP-OFDM waveform.
  • Step 704 The terminal sends the MsgA to the access network device, where the PUSCH included in the MsgA is sent using the target waveform.
  • the terminal uses the target waveform to send uplink data in MsgA (ie, PUSCH) on the PUSCH.
  • the uplink data may carry the identification information of the UE and the reason for the RRC request.
  • Step 705 The access network device receives the MsgA sent by the terminal, and the MsgA includes the PUSCH sent using the target waveform.
  • the access network device may also send a second signaling message to the terminal, where the second signaling message may be used to indicate whether to update the target waveform.
  • the terminal receives the second signaling message sent by the access network device, and determines whether to update the target waveform according to the second signaling message.
  • the access network device when the access network device wishes to update the target waveform under certain conditions, it can be instructed by the second signaling message, so that the terminal updates the target waveform after receiving the second signaling message. Further, the access network device may indicate whether to update the target waveform when the terminal is in the connected state through the second signaling message. In other words, for connected terminals, there may also be a need for random access using a two-step random access process, such as terminal handover. At this time, the access network device can pass the second step according to conditions such as channel quality.
  • the signaling message performs update instructions.
  • the second signaling message may be an RRC message, that is, in the process of establishing an RRC connection, the RRC message may be used to indicate whether to update the target waveform.
  • the second signaling message when the second signaling message includes the first indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message includes the second indication information, the The second signaling message is used to indicate not to update the target waveform.
  • the access network device can use different indication information to indicate whether to update the target waveform.
  • the first indication information is "1”.
  • the second signaling message is used to indicate to update the target waveform.
  • Target waveform; the second indication information is "0", at this time, the second signaling message is used to indicate not to update the target waveform, that is, the waveform can be maintained unchanged.
  • the first indication information can be set in the RRC message to indicate The terminal updates the target waveform to a CP-OFDM waveform.
  • the access network equipment detects that the terminal is located at the edge of the cell and the channel quality is poor, in order to ensure better coverage, if the current target waveform is a CP-OFDM waveform, the first indication information can be set in the RRC message. To instruct the terminal to update the target waveform as a DFTs-OFDM waveform.
  • determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes the first indication information, determining to update the target waveform; or, when the second signaling message includes the second When indicating information, make sure not to update the target waveform.
  • the second signaling message when the second signaling message includes update indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message does not include the update indication information, the The second signaling message is used to indicate not to update the target waveform.
  • the access network device may also indicate whether to update the target waveform by including update indication information or default configuration in the second signaling message. For example, when the access network equipment detects that the terminal is located at the edge of the cell and the channel quality is not good, if the current target waveform is a DFTs-OFDM waveform, then you can not set the update indication information in the RRC message to indicate through the RRC message The terminal does not update the target waveform.
  • determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes update indication information, determining to update the target waveform; or, when the second signaling message does not include update indication When information, make sure not to update the target waveform.
  • the access network device indicates the target waveform adopted by the PUSCH in the MsgA of the random access process through the GT indication information, so that after receiving the configuration information of the MsgA, the terminal according to the GT indication in the configuration information
  • the information can determine which target waveform is used to upload the uplink data in MsgA.
  • the setting of the PUSCH waveform in MsgA can fully consider the influence of GT of different sizes, which is beneficial to the terminal implementation.
  • the access network device needs to change the target waveform, it can be indicated by the second signaling message, which improves the flexibility of waveform usage.
  • FIG. 9 is a flowchart of a method for receiving messages in random access according to an exemplary embodiment.
  • the method can be applied in the foregoing implementation environment.
  • the method can include the following implementation steps :
  • Step 901 The access network device sends waveform configuration information to the terminal, where the waveform configuration information is used to indicate the target waveform adopted by the PUSCH in the MsgA of the random access process.
  • the access network device can configure the target waveform used by the PUSCH in the MsgA of the random access process for the terminal, and then the access network device can send the configured
  • the waveform configuration information of the target waveform is used to instruct the terminal to use which target waveform to send the PUSCH in the MsgA during the random access process.
  • the waveform configuration information includes GT indication information, and also includes a system broadcast message or a first signaling message; where the GT indication information is used to indicate the transmission time between the preamble in the MsgA and the PUSCH At intervals, the system broadcast message or the first signaling message includes a target information field for indicating the target waveform.
  • the access network equipment determines the waveform used by the PUSCH through the waveform indication of the system broadcast message or signaling message. Among them, assuming that the minimum adjustment time required for the two waveform adjustments is the target value, it can be recorded as deltaT here.
  • the target value may be predefined, or the target value may also be indicated by the access network device, and further, when the target value may also be indicated by the access network device, the access network device
  • the device may indicate through a signaling message.
  • the signaling message may be a system broadcast message or an RRC message, which is not limited in the embodiment of the present application.
  • Step 902 The terminal receives the waveform configuration information sent by the access network device.
  • the terminal receives the first signaling message to realize the reception of the waveform configuration information.
  • Step 903 The terminal determines the target waveform based on the GT indication information and the target information field.
  • the target waveform is determined to be a DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, according to the target information
  • the domain determines the target waveform.
  • the terminal configuration can be the same as the preamble. ⁇ waveform.
  • the target waveform is also a DFTs-OFDM waveform.
  • the specific implementation of determining the target waveform according to the target information domain can refer to the foregoing embodiments.
  • the target waveform is determined to be the first waveform.
  • Step 904 The terminal sends the MsgA to the access network device, where the PUSCH included in the MsgA is sent using the target waveform.
  • the terminal uses the target waveform to send uplink data in MsgA (ie, PUSCH) on the PUSCH.
  • the uplink data may carry the identification information of the UE and the reason for the RRC request.
  • Step 905 The access network device receives the MsgA sent by the terminal, and the MsgA includes the PUSCH sent using the target waveform.
  • the access network device may also send a second signaling message to the terminal, where the second signaling message may be used to indicate whether to update the target waveform.
  • the terminal receives the second signaling message sent by the access network device, and determines whether to update the target waveform according to the second signaling message.
  • the access network device when the access network device wishes to update the target waveform under certain conditions, it can be instructed by the second signaling message, so that the terminal updates the target waveform after receiving the second signaling message. Further, the access network device may indicate whether to update the target waveform when the terminal is in the connected state through the second signaling message. In other words, for connected terminals, there may also be a need to use a two-step random access process for random access, such as terminal handover, etc. At this time, the access network device can pass the second signaling according to the channel command Message to update instructions.
  • the second signaling message may be an RRC message, that is, in the process of establishing an RRC connection, the RRC message may be used to indicate whether to update the target waveform.
  • the second signaling message when the second signaling message includes the first indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message includes the second indication information, the The second signaling message is used to indicate not to update the target waveform.
  • the access network device can use different indication information to indicate whether to update the target waveform.
  • the first indication information is "1”.
  • the second signaling message is used to indicate to update the target waveform.
  • Target waveform; the second indication information is "0", at this time, the second signaling message is used to indicate not to update the target waveform, that is, the waveform can be maintained unchanged.
  • the first indication information can be set in the RRC message to indicate The terminal updates the target waveform to a CP-OFDM waveform.
  • the access network equipment detects that the terminal is located at the edge of the cell and the channel quality is poor, in order to ensure better coverage, if the current target waveform is a CP-OFDM waveform, the first indication information can be set in the RRC message. To instruct the terminal to update the target waveform as a DFTs-OFDM waveform.
  • determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes the first indication information, determining to update the target waveform; or, when the second signaling message includes the second When indicating information, make sure not to update the target waveform.
  • the second signaling message when the second signaling message includes update indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message does not include the update indication information, the The second signaling message is used to indicate not to update the target waveform.
  • the access network device may also indicate whether to update the target waveform by including update indication information or default configuration in the second signaling message. For example, when the access network equipment detects that the terminal is located at the edge of the cell and the channel quality is not good, if the current target waveform is a DFTs-OFDM waveform, then you can not set the update indication information in the RRC message to indicate through the RRC message The terminal does not update the target waveform.
  • determining whether to update the target waveform according to the second signaling message includes: when the second signaling message includes update indication information, determining to update the target waveform; or, when the second signaling message does not include update indication When information, make sure not to update the target waveform.
  • the access network device indicates the target waveform adopted by the PUSCH in the MsgA of the random access process through the GT indication information combined with the system broadcast message or the signaling message, so that after the terminal receives the configuration information of the MsgA, According to the GT indication information in the configuration information, combined with the system broadcast message or signaling message, it can be determined which target waveform is used to upload the uplink data in the MsgA.
  • the setting of the PUSCH waveform in MsgA can fully consider the influence of GT of different sizes, which is beneficial to the terminal implementation.
  • the access network device needs to change the target waveform, it can be indicated by the second signaling message, which improves the flexibility of waveform usage.
  • the above description is only based on the example in which the GT indication information is indicated to the terminal by the access network device.
  • the GT indication information may also be predefined, and the terminal may also combine The system broadcasts a message or a first signaling message to determine the waveform used by the PUSCH in the MsgA.
  • the terminal may obtain the GT indication information, which is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH, and then determine the magnitude relationship between the GT indication information and the target value.
  • the target waveform is determined to be a DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, according to the target
  • the information field determines the target waveform.
  • FIG. 10 is a structural diagram of a message receiving apparatus in random access according to an exemplary embodiment.
  • the apparatus may be configured in a terminal.
  • the apparatus may include: a receiving module 1010 for Receive waveform configuration information, where the waveform configuration information is used to indicate the target waveform adopted by the physical uplink shared channel PUSCH in the MsgA of the random access process.
  • the waveform configuration information includes a system broadcast message
  • the system broadcast message includes a target information field for indicating the target waveform.
  • the waveform configuration information includes a first signaling message, and the first signaling message includes a target information field for indicating the target waveform.
  • the first signaling message is a radio resource control RRC message.
  • the target information field when the target information field includes the first configuration information, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field includes In the second configuration information, the target information field is used to indicate that the target waveform is a second waveform; wherein the second waveform is different from the first waveform.
  • the target information field when the target information field is not empty, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field is empty The target information field is used to indicate that the target waveform is a second waveform; wherein, the second waveform is different from the first waveform.
  • the waveform configuration information includes guard interval GT indication information, and the GT indication information is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH.
  • the GT indication information when the transmission time interval indicated by the GT indication information is less than a target value, the GT indication information is used to indicate that the target waveform is an orthogonal discrete Fourier transform Frequency division multiplexing DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, the GT indication information is used to indicate that the target waveform is based on a cyclic prefix Orthogonal frequency division multiplexing CP-OFDM waveform.
  • the target value is predefined, or the target value is indicated by an access network device.
  • the waveform configuration information includes GT indication information, and also includes a system broadcast message or a first signaling message; wherein, the GT indication information is used to indicate the preamble in the MsgA
  • the transmission time interval between the code and the PUSCH, and the system broadcast message or the first signaling message includes a target information field for indicating the target waveform.
  • the receiving module 1010 is further configured to: when the transmission time interval indicated by the GT indication information is less than a target value, determine that the target waveform is a DFTs-OFDM waveform; or When the transmission time interval indicated by the GT indication information is greater than or equal to the target value, the target waveform is determined according to the target information field.
  • the receiving module 1010 is further configured to: when the waveform configuration information includes a system broadcast message or a first signaling message, the system broadcast message or the first signaling message When it contains the target information field used to indicate the target waveform, obtain predefined GT indication information, where the GT indication information is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH; when When the transmission time interval indicated by the GT indication information is less than the target value, it is determined that the target waveform is a DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value When the time, the target waveform is determined according to the target information domain.
  • the device further includes: a first sending module 1020 for sending the MsgA, wherein the PUSCH contained in the MsgA is sent using the target waveform .
  • the receiving module 1010 is further configured to: receive a second signaling message, where the second signaling message is used to indicate whether to update the target waveform; Let the message determine whether to update the target waveform.
  • the receiving module 1010 is configured to: when the second signaling message includes the first indication information, determine to update the target waveform; or, when the second signaling message When the message includes the second indication information, it is determined not to update the target waveform.
  • the receiving module 1010 is configured to: when the second signaling message includes update indication information, determine to update the target waveform; or, when the second signaling message When the update instruction information is not included, it is determined not to update the target waveform.
  • FIG. 12 is a structural diagram of a message receiving apparatus in random access according to an exemplary embodiment.
  • the apparatus may be configured in an access network device, and the apparatus may include:
  • the second sending module 1210 is configured to send waveform configuration information, where the waveform configuration information is used to indicate the target waveform adopted by the physical uplink shared channel PUSCH in the MsgA of the random access process.
  • the waveform configuration information includes a system broadcast message
  • the system broadcast message includes a target information field for indicating the target waveform.
  • the waveform configuration information includes a first signaling message, and the first signaling message includes a target information field for indicating the target waveform.
  • the first signaling message is a radio resource control RRC message.
  • the target information field when the target information field includes the first configuration information, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field includes In the second configuration information, the target information field is used to indicate that the target waveform is a second waveform; wherein the second waveform is different from the first waveform.
  • the target information field when the target information field is not empty, the target information field is used to indicate that the target waveform is the first waveform; or, when the target information field is empty The target information field is used to indicate that the target waveform is a second waveform; wherein, the second waveform is different from the first waveform.
  • the waveform configuration information includes guard interval GT indication information, and the GT indication information is used to indicate the transmission time interval between the preamble in the MsgA and the PUSCH.
  • the GT indication information when the transmission time interval indicated by the GT indication information is less than a target value, the GT indication information is used to indicate that the target waveform is an orthogonal discrete Fourier transform Frequency division multiplexing DFTs-OFDM waveform; or, when the transmission time interval indicated by the GT indication information is greater than or equal to the target value, the GT indication information is used to indicate that the target waveform is based on a cyclic prefix Orthogonal frequency division multiplexing CP-OFDM waveform.
  • the target value is predefined, or the target value is indicated by an access network device.
  • the waveform configuration information includes GT indication information, and also includes a system broadcast message or a first signaling message; wherein, the GT indication information is used to indicate the preamble in the MsgA
  • the transmission time interval between the code and the PUSCH, and the system broadcast message or the first signaling message includes a target information field for indicating the target waveform.
  • the second sending module 1210 is further configured to: receive the MsgA, where the MsgA includes the PUSCH sent using the target waveform.
  • the second sending module 1210 is further configured to send a second signaling message, where the second signaling message is used to indicate whether to update the target waveform.
  • the second signaling message when the second signaling message includes the first indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message When the message includes the second indication information, the second signaling message is used to indicate not to update the target waveform.
  • the second signaling message when the second signaling message includes update indication information, the second signaling message is used to instruct to update the target waveform; or, when the second signaling message When the message does not include the update indication information, the second signaling message is used to indicate not to update the target waveform.
  • FIG. 13 shows a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.
  • the terminal includes: a processor 1301, a receiver 1302, a transmitter 1303, a memory 1304, and a bus 1305.
  • the processor 1301 includes one or more processing cores, and the processor 1301 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1302 and the transmitter 1303 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 1304 is connected to the processor 1301 through the bus 1305.
  • the memory 1304 may be used to store at least one instruction, and the processor 1301 is used to execute the at least one instruction, so as to implement each step executed by the terminal in the foregoing method embodiments.
  • the memory 1304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic or optical disk, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the present application provides a computer-readable storage medium in which at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to implement the methods provided in the foregoing embodiments.
  • This application also provides a computer program product, which when the computer program product runs on a computer, causes the computer to execute the methods provided in the foregoing embodiments.
  • FIG. 14 shows a schematic structural diagram of an access network device provided by an exemplary embodiment of the present application.
  • the access network device includes: a processor 1401, a receiver 1402, a transmitter 1403, a memory 1404, and a bus 1405 .
  • the processor 1401 includes one or more processing cores, and the processor 1401 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1402 and the transmitter 1403 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 1404 is connected to the processor 1401 through the bus 1405.
  • the memory 1404 may be used to store at least one instruction, and the processor 1401 is used to execute the at least one instruction, so as to implement each step performed by the access network device in the foregoing method embodiments.
  • the memory 1404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the present application provides a computer-readable storage medium in which at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to implement the methods provided in the foregoing embodiments.
  • This application also provides a computer program product, which when the computer program product runs on a computer, causes the computer to execute the methods provided in the foregoing embodiments.

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Abstract

本申请提供了一种随机接入中的消息接收方法、装置、设备及存储介质,涉及通信技术领域。该方法包括:接收波形配置信息,波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。本申请实施例通过接收接入网设备发送的波形配置信息来确定采用哪种波形上传上行数据。

Description

随机接入中的消息接收方法、装置、设备及存储介质 技术领域
本申请涉及通信技术领域,特别涉及一种随机接入中的消息接收方法、装置、设备及存储介质。
背景技术
随机接入过程一般包括四步过程,为了缩短随机接入过程的时延,当前提出了将四步的随机接入过程压缩为两步随机接入过程。
两步的随机接入过程一般包括:UE(User Equipment,用户设备)向接入网设备发送MsgA,以及接入网设备接收到该MsgA后向UE发送响应消息MsgB。在实施中,UE在向接入网设备发送MsgA之前,需要接入网设备为UE配置该MsgA对应的PUSCH的波形,然而,当前尚未提出如何确定MsgA对应的PUSCH的波形,这一问题成为相关领域研究的热点。
发明内容
本申请实施例提供了一种随机接入中的消息接收方法、装置、设备及存储介质,可以用于解决如何确定MsgA对应的PUSCH的波形的问题。所述技术方案如下:
第一方面,提供了一种随机接入中的消息接收方法,应用于终端中,所述方法包括:接收波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
在本申请一种可能的实现方式中,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述第一信令消息为无线资源控制RRC消息。
在本申请一种可能的实现方式中,当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
在本申请一种可能的实现方式中,当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
在本申请一种可能的实现方式中,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
在本申请一种可能的实现方式中,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
在本申请一种可能的实现方式中,所述波形配置信息包括系统广播消息或第一信令消息,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域,所述方法还包括:获取预定义的GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔;当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
在本申请一种可能的实现方式中,所述方法还包括:发送所述MsgA,其中,所述MsgA中包含的PUSCH采用所述目标波形发送。
在本申请一种可能的实现方式中,所述发送所述MsgA之后,还包括:接收第二信令消息,所述第二信令消息用于指示是否更新所述目标波形;根据所述第二信令消息确定是否更新所述目标波形。
在本申请一种可能的实现方式中,所述根据所述第二信令消息确定是否更新所述目标波形,包括:当所述第二信令消息包括第一指示信息时,确定更新所述目标波形;或者,当所述第二信令消息包括第二指示信息时,确定不更新所述目标波形。
在本申请一种可能的实现方式中,所述根据所述第二信令消息确定是否更新所述目标波形,包括:当所述第二信令消息包括更新指示信息时,确定更新所述目标波形;或者,当所述第二信令消息不包括所述更新指示信息时,确定不更新所述目标波形。
第二方面,提供了一种随机接入中的消息接收方法,应用于接入网设备中,所述方法包括:发送波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
在本申请一种可能的实现方式中,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述第一信令消息为无线资源控制RRC消息。
在本申请一种可能的实现方式中,当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
在本申请一种可能的实现方式中,当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
在本申请一种可能的实现方式中,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
在本申请一种可能的实现方式中,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述方法还包括:接收所述MsgA,所述MsgA中包含采用所述目标波形发送的PUSCH。
在本申请一种可能的实现方式中,所述接收所述MsgA之后还包括:发送第二信令消息,所述第二信令消息用于指示是否更新所述目标波形。
在本申请一种可能的实现方式中,当所述第二信令消息包括第一指示信息时,所述第二信令消息用于指示更新所述目标波形;或者,当所述第二信令消息包括第二指示信息时,所述第二信令消息用于指示不更新所述目标波形。
在本申请一种可能的实现方式中,当所述第二信令消息包括更新指示信息时,所述第二信令消息用于指示更新所述目标波形;或者,当所述第二信令消息不包括所述更新指示信息时,所述第二信令消息用于指示不更新所述目标波形。
第三方面,提供了一种随机接入中的消息接收装置,配置于终端中,所述装置包括:
接收模块,用于接收波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
在本申请一种可能的实现方式中,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述第一信令消息为无线资源控制RRC消息。
在本申请一种可能的实现方式中,当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
在本申请一种可能的实现方式中,当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
在本申请一种可能的实现方式中,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
在本申请一种可能的实现方式中,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述接收模块还用于:当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
在本申请一种可能的实现方式中,所述接收模块还用于:当所述波形配置信息包括系统广播消息或第一信令消息,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域时,获取预定义的GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔;当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
在本申请一种可能的实现方式中,所述装置还包括:第一发送模块,用于发送所述MsgA,其中,所述MsgA中包含的PUSCH采用所述目标波形发送。
在本申请一种可能的实现方式中,所述接收模块还用于:接收第二信令消息,所述第二信令消息用于指示是否更新所述目标波形;根据所述第二信令消息确定是否更新所述目标波形。
在本申请一种可能的实现方式中,所述接收模块用于:当所述第二信令消息包括第一指示信息时,确定更新所述目标波形;或者,当所述第二信令消息包括第二指示信息时,确定不更新所述目标波形。
在本申请一种可能的实现方式中,所述接收模块用于:当所述第二信令消息包括更新指示信息时,确定更新所述目标波形;或者,当所述第二信令消息不包括所述更新指示信息时,确定不更新所述目标波形。
第四方面,提供了一种随机接入中的消息接收装置,配置于接入网设备中,所述装置包括:第二发送模块,用于发送波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
在本申请一种可能的实现方式中,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述第一信令消息为无线资源控制RRC消息。
在本申请一种可能的实现方式中,当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
在本申请一种可能的实现方式中,当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
在本申请一种可能的实现方式中,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
在本申请一种可能的实现方式中,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述第二发送模块还用于:接收所述MsgA,所述MsgA中包含采用所述目标波形发送的PUSCH。
在本申请一种可能的实现方式中,所述第二发送模块还用于:发送第二信令消息,所述第二信令消息用于指示是否更新所述目标波形。
在本申请一种可能的实现方式中,当所述第二信令消息包括第一指示信息时,所述第二信令消息用于指示更新所述目标波形;或者,当所述第二信令消息包括第二指示信息时,所述第二信令消息用于指示不更新所述目标波形。
在本申请一种可能的实现方式中,当所述第二信令消息包括更新指示信息时,所述第二信令消息用于指示更新所述目标波形;或者,当所述第二信令消息不包括所述更新指示信息时,所述第二信令消息用于指示不更新所述目标波形。
第五方面,提供了一种通信系统,包括终端和接入网设备,终端包括上述第三方面任一所述的装置,接入网设备包括第四方面任一所述的装置。
第六方面,提供了一种终端,所述终端包括处理器和存储器,所述存储器存储有至少一条指令,所述至少一条指令用于被所述处理器执行以实现上述第一方面中任一所述的方法。
第七方面,提供了一种接入网设备,所述接入网设备包括处理器和存储器,所述存储器存储有至少一条指令,所述至少一条指令用于被所述处理器执行以实现上述第二方面中任一所述的方法。
第八方面,提供了一种计算机可读存储介质,其特征在于,所述存储介质存储有至少一条指令,所述至少一条指令用于被处理器执行以实现上述第一方面中任一所述的方法。
第九方面,提供了一种计算机可读存储介质,其特征在于,所述存储介质存储有至少一条指令,所述至少一条指令用于被处理器执行以实现上述第二方面中任一所述的方法。
第十方面,提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第一方面任一所述的方法。
第十一方面,提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第二方面任一所述的方法。
本申请实施例提供的技术方案带来的有益效果至少包括:终端接收接入网设备发送的波形配置信息,该波形配置信息用于指示随机接入过程的MsgA中的PUSCH采用的目标波形,如此,基于该波形配置信息,确定该目标波形,并采用该目标波形向接入网设备发送MsgA,MsgA包含上行数据。也即是,本申请实施例通过接收接入网设备发送的波形配置信息来确定采用哪种波形上传上行数据。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,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是本申请一个示例性实施例提供的MsgA的信道结构的示意图;
图2是本申请一个示例性实施例提供的四步随机接入过程的流程图;
图3是本申请一个示例性实施例提供的实施环境的示意图;
图4是本申请一个示例性实施例提供的随机接入中的消息接收方法的流程图;
图5是本申请另一个示例性实施例提供的随机接入中的消息接收方法的流程图;
图6是本申请另一个示例性实施例提供的随机接入中的消息接收方法的流程图;
图7是本申请另一个示例性实施例提供的随机接入中的消息接收方法的流程图;
图8是本申请一个示例性实施例提供的MsgA的信道结构的示意图;
图9是本申请另一个示例性实施例提供的随机接入中的消息接收方法的流程图;
图10是本申请一个示例性实施例提供的随机接入中的消息接收装置的结构图;
图11是本申请另一个示例性实施例提供的随机接入中的消息接收装置的结构示意图;
图12是本申请另一个示例性实施例提供的随机接入中的消息接收装置的结构示意图;
图13是本申请一个示例性实施例提供的终端的结构示意图;
图14是本申请一个示例性实施例提供的接入网设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施方式作进一步地详细描述。
在对本申请实施例提供的信息确定方法进行详细介绍之前,先对本申请实施例涉及的名词、应用场景和实施环境进行简单介绍。
首先,对本申请实施例涉及的名词进行简单介绍。
PUSCH:(Physical Uplink Shared Channel,物理上行共享信道),用于承载上行数据,比如在四步的随机接入过程中可以用于传输Msg3,在两步的随机接入过程中可以用于传输MsgA中的PUSCH等。
PUSCH的波形:可以用于发送MsgA中的上行数据,该PUSCH波形的种类一般包括有DFTs-OFDM(Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing,离散傅里叶变换的正交频分复用)波形和CP-OFDM(Cyclic Prefix Orthogonal Frequency Division Multiplexing,基于循环前缀的正交频分复用)波形,其中,该DFTs-OFDM波形能够在信道质量不佳时保证良好的覆盖性能,该CP-OFDM波形能够使得PUSCH资源灵活分配。
GT:(Guard Time,保护间隔),是指MsgA中前导码(preamble)与PUSCH之间的时间间隔。目前提出的关于msgA的信道结构可能如图1所示,包括一个时间在先的前导码以及该前导码的CP(Cyclic Prefix,循环前缀)部分,还包括一个时间在后的PUSCH部分以及该两者之间的一个GT,可以理解为,在发送前导码之后,可能要相隔该GT后发送上行数据。
接下来以UE(又可称为终端)接入接入网设备为例,对四步的随机接入过程进行简单介绍。请参考图2,随机接入过程通常可以包括如下四步过程:
第一步:UE向接入网设备发送Msg1,该Msg1为随机接入前导序列(即前导码)。
UE发送Msg1给接入网设备,以通知接入网设备有一个随机接入请求,同时使得接入网设备能够估计自身与UE之间的传输时延,并以此校准上行时间。
作为一种示例,发送Msg1的资源信息可以通过RACH(Random Access Channel,随机接入信道)的资源配置获得。在Rel-15NR(New Radio,新无线)技术中,定义了为UE接入配置的RACH资源配置信息,包括256种,小区可以在系统消息中将自身使用的RACH资源配置信息指示给UE。每种RACH资源配置信息包括前导码格式,周期,无线帧偏移,无线帧内的子帧编号,子帧内的起始符号,子帧内PRACH时隙的个数,PRACH时隙内PRACH时机的个数,PRACH时机持续时间。通过这些信息可以确定PRACH资源的时、频、码信息,如此,UE可以根据接入网设备指示的RACH资源配置信息,在对应的PRACH资源上发送Msg1。
第二步:接入网设备检测到UE发送的Msg1后,向UE发送RAR(Random Access Response,随机接入响应)(Msg2)以告知UE在发送下一个消息(Msg3)时可以使用的上行资源信息。
其中,一个RAR中可以包括对多个发送前导码的UE的响应消息,对每一个UE的响应消息中包含该每个UE采用的RAPID、Msg3的资源分配信息、TA(Tracking Area,跟踪区)信息等。
当然,除此之外接入网设备还可以执行其它操作,比如为UE分配临时RNTI(Radio NetworkTemporary Identity,无线网络临时标识)等,这里不作过多介绍。
第三步:UE接收RAR,并在该RAR所指示的上行资源上向接入网设备发送Msg3。
在一些实施例中,该UE可以在该RAR对应的一个RAR时间窗内的搜索空间中监听PDCCH,以接收该RAR。其中,该RAR时间窗可以通过高层参数进行配置,PDCCH的搜索空间的配置信息可以通过系统消息来指示。
若UE在RAR时间窗内未接收到接入网设备发送的RAR,则认为此次随机接入过程失败。若UE接收到一个RAR,且该RAR中的前导码索引与UE发送的前导码索引相同,则认为成功接收了RAR,此时UE可以停止监听RAR,UE向接入网设备发送Msg3。
作为一种示例,该Msg3可以携带一个UE特定的临时标识信息或来自核心网的UE标志,譬如,该UE标志可以为S-TMSI(Serving-Temporary Mobile Subscriber Identity,临时移动用户标识)或一个随机数。
第四步:接入网设备接收到Msg3后,向该UE发送Msg4。
作为一种示例,该Msg4包括竞争解决消息,同时包括为UE分配的上行传输资源的信息,示例性的,接入网设备在冲突解决机制中,会在Msg4中携带唯一的标志以指示竞争胜出的UE。UE接收到基站发送的Msg4时,会检测UE在Msg3发送的临时标识信息是否包含在接入网设备发送的竞争解决消息中,若包含则表明UE随机接入过程成功,否则认为随机过程失败,UE需要再次从第一步开始发起随机接入过程。
接下来,对本申请实施例涉及的应用场景进行简单介绍。
为了缩短随机接入过程的时延,提出了两步的随机接入过程,该两步随机接入过程包括UE向接入网设备发送MsgA,以及接入网设备向UE发送MsgB。其中,该MsgA可能的设计是包括前导码(preamble)以及上行数据,该上行数据可以通过PUSCH承载,作为一种示例,该上行数据可以包括UE的标识信息(比如临时标识信息)以及RRC(Radio Resource Control,无线资源控制)请求的原因等,该MsgA等效于包含四步的随机接入过程中的Msg1和Msg3。另外,该MsgB中包含冲突解决信息以及TA信息、C-RNTI(Cell Radio Network Temporary Identifier,小区无线网络临时标识符)的分配信息等,该MsgB等效于包含四步的随机接入过程中的Msg2和Msg4。
本申请实施例提供了一种随机接入中的消息接收方法,该方法可以用于确定MsgA中的PUSCH采用的波形。
另外,对本申请实施例涉及的实施环境进行简单介绍。
请参考图3,该图3是根据一示例性实施例示出的一种实施环境的示意图。该实施环境中主要包括终端310和接入网设备320,该终端310和该接入网设备320之间可以建立通信连接。其中,该终端310可以向接入网设备320发起随机接入请求,以请求随机接入该接入网设备320。该接入网设备320可以为该终端310提供服务,比如该服务可以包括接入服务、数据传输服务等,作为一种示例,该接入网设备320可以为基站等设备。
请参考图4,该图4是根据一示例性实施例示出的一种随机接入中的消息接收方法的流程图,该方法可以应用于上述实施环境中,该方法可以包括如下几个实现步骤:
步骤401:接入网设备向终端发送波形配置信息,该波形配置信息用于指示随机接入过程的MsgA中的PUSCH采用的目标波形。
在随机接入过程中,终端在发送MsgA之前,可以由接入网设备为终端配置随机接入过程的MsgA中的PUSCH采用的目标波形,然后,该接入网设备可以向终端发送所配置的目标波形的波形配置信息,以利用该波形配置信息来指示终端在随机接入过程发送MsgA中的PUSCH采用哪种目标波形。
步骤402:终端接收该接入网设备发送的波形配置信息。
步骤403:终端向该接入网设备发送该MsgA,其中,该MsgA中包含的PUSCH采用该目标波形发送。
具体地,终端采用该目标波形,在PUSCH上发送MsgA中的上行数据(即PUSCH),该上行数据可以承载UE的标识信息以及RRC请求的原因等。
作为一种示例,该目标波形可以为DFTs-OFDM波形,或者,该目标波形也可以为CP-OFDM波形。
步骤404:接入网设备接收该终端发送的该MsgA,该MsgA中包含采用该目标波形发送的PUSCH。
在本申请实施例中,终端接收接入网设备发送的波形配置信息,该波形配置信息用于指示随机接入过程的MsgA中的PUSCH采用的目标波形,如此,基于该波形配置信息,确定该目标波形,并采用该目标波形向接入网设备发送MsgA,MsgA包含上行数据。也即是,本申请实施例通过接收接入网设备发送的波形配置信息来确定采用哪种波形上传上行数据。
请参考图5,该图5是根据一示例性实施例示出的一种随机接入中的消息接收方法的流程图,该方法可以应用于上述实施环境中,该方法可以包括如下几个实现步骤:
步骤501:接入网设备向终端发送波形配置信息,该波形配置信息用于指示随机接入过程的MsgA中的PUSCH采用的目标波形。
在随机接入过程中,终端在发送MsgA之前,可以由接入网设备为终端配置随机接入过程的MsgA中的PUSCH采用的目标波形,然后,该接入网设备可以向终端发送所配置的目标波形的波形配置信息,以利用该波形配置信息来指示终端在随机接入过程发送MsgA中的PUSCH采用哪种目标波形。
作为一种示例,该波形配置信息包括系统广播消息,该系统广播消息中包含用于指示目标波形的目标信息域。
也即是,可以通过该系统广播消息来指示终端采用哪种目标波形。作为一种示例,该波形配置信息可以为系统广播消息,进一步地,可以在该系统广播消息中新增一个目标信息域,以通过该目标信息域 来指示该目标波形。
当该波形配置信息包括系统广播消息时,可能存在如下几种情况:
第一种情况:当目标信息域包含第一配置信息时,该目标信息域用于指示该目标波形为第一波形;或者,当该目标信息域包含第二配置信息时,该目标信息域用于指示该目标波形为第二波形。其中,该第二波形与该第一波形不同。
其中,该第一波形可以为DFTs-OFDM波形或CP-OFDM波形,同理,该第二波形可以为CP-OFDM波形或DFTs-OFDM波形,该第一波形和第二波形不同。作为一种示例,该第一波形为DFTs-OFDM波形,该第二波形为CP-OFDM波形。
也就是说,可以在该目标信息域中添加不同的配置信息来指示不同的波形。作为一种示例,该第一配置信息可以为DFTs-OFDM波形的描述信息,该第二配置信息可以为CP-OFDM波形的描述信息。或者,该第一配置信息可以为第一数值,该第二配置信息可以为第二数值,比如,该第一数值为“1”,该第二数值为“0”,示例性的,当该目标信息域中包含“1”时,目标信息域用于指示该目标波形为DFTs-OFDM波形,当该目标信息域中包含“0”时,目标信息域用于指示该目标波形为CP-OFDM波形。
第二种情况:当该目标信息域不为空时,该目标信息域用于指示该目标波形为第一波形;或者,当该目标信息域为空时,该目标信息域用于指示该目标波形为第二波形。其中,该第二波形与该第一波形不同。
也就是说,可以通过在目标信息域中携带信息或者缺省配置的方式来指示不同的波形。作为一种示例,当该目标信息域中包含比特信息,即不为空时,该目标信息域用于指示该目标波形为DFTs-OFDM波形,示例性的,当该目标信息域不为空且内容为“1”时,该目标信息域用于指示该目标波形为DFTs-OFDM波形。当该目标信息域不包括比特信息,即为空时,该目标信息域用于指示该目标波形为CP-OFDM波形。
进一步地,该系统广播消息还可以包括RMSI(Remaining Minimum System Information,剩余最低系统消息)、OSI(Open System Interconnection,开放式系统互联)等,本申请实施例对此不作限定。
作为一种示例,当通信系统既支持四步随机接入过程又支持两步的随机接入过程时,还可以直接沿用四步随机接入过程的Msg3中的PUSCH的波形,也即是,系统广播消息中指示四步的随机接入过程的Msg3中的PUSCH采用哪种波形,该MsgA中的PUSCH也采用哪种波形。如此,通过复用四步随机接入过程的Msg3的PUSCH的波形的指示,可以节省两步随机接入过程的MsgA中PUSCH的波形指示开销。
步骤502:终端接收该接入网设备发送的波形配置信息。
作为一种示例,该终端接收系统广播消息,从而实现对该波形配置信息的接收。
步骤503:终端基于波形配置信息,确定该目标波形。
根据该波形配置信息的指示方式不同,基于波形配置信息确定目标波形的实现方式也不同,在实施中可以包括如下几种情况:
第一种情况:从系统广播消息包括的目标信息域中获取配置信息,当该配置信息为第一配置信息时,确定该目标波形为第一波形;当该配置信息为第二配置信息时,确定该目标波形为第二波形,该第一波形与该第二波形不同。
也就是说,当该接入网设备在该目标信息域中添加不同的配置信息来指示不同的波形时,该终端从该目标信息域中获取配置信息,并确定该配置信息为第一配置信息还是第二配置信息,从而确定该目标波形为第一波形还是第二波形。
第二种情况:查询系统广播消息包括的目标信息域中是否为空,当该目标信息域不为空时,确定该目标波形为第一波形,当该目标信息域为空时,确定该目标波形为第二波形。
也就是说,当接入网设备通过在目标信息域中携带信息或者缺省配置的方式来指示不同的波形时,终端查询该目标信息域是否为空,并以此来确定该目标波形为第一波形还是第二波形。
步骤504:终端向该接入网设备发送该MsgA,其中,该MsgA中包含的PUSCH采用该目标波形发送。
具体地,终端采用该目标波形,在PUSCH上发送MsgA中的上行数据(即PUSCH),该上行数据可以承载UE的标识信息以及RRC请求的原因等。
步骤505:接入网设备接收该终端发送的该MsgA,该MsgA中包含采用该目标波形发送的PUSCH。
作为一种示例,接入网设备向终端发送波形配置信息之后,还可以向终端发送第二信令消息,该第二信令消息可以用于指示是否更新该目标波形。相应地,终端接收该接入网设备发送的第二信令消息,根据该第二信令消息确定是否更新该目标波形。
也即是,当在某些条件下接入网设备希望更新目标波形时,可以通过第二信令消息进行指示,使得终端在接收到该第二信令消息后,更新该目标波形。进一步地,接入网设备可以通过第二信令消息指示终端在处于连接态时是否更新该目标波形。也就是说,对于连接态的终端可能还会有采用两步随机接入过程进行随机接入的需求,比如终端进行切换等,此时,接入网设备可以根据信道指令,通过第二信令消息进行更新指示。作为一种示例,该第二信令消息可以为RRC消息,也就是说,可以在RRC连接过程中,通过RRC消息来指示是否要更新目标波形。
作为一种示例,当该第二信令消息包括第一指示信息时,该第二信令消息用于指示更新该目标波形;或者,当该第二信令消息包括第二指示信息时,该第二信令消息用于指示不更新该目标波形。
也就是说,该接入网设备可以采用不同的指示信息来指示是否更新该目标波形,示例性的,第一指示信息可以为“1”,此时,该第二信令消息用于指示更新该目标波形;该第二指示信息可以为“0”,此时,该第二信令消息用于指示不更新该目标波形,即维持波形不变。
比如当接入网设备监测到终端具有较好的覆盖时,如果当前的目标波形为DFTs-OFDM波形,此时考虑到资源分配的灵活性,可以在RRC消息中设置第一指示信息,以指示终端更新该目标波形为CP-OFDM波形。再如,当接入网设备监测到终端位于小区边缘,信道质量不佳时,为了保证较好的覆盖,如果当前的目标波形为CP-OFDM波形,可以在RRC消息中设置第一指示信息,以指示终端更新该目标波形为DFTs-OFDM波形。
此时,对于终端来说,根据第二信令消息确定是否更新目标波形包括:当第二信令消息包括第一指示信息时,确定更新目标波形;或者,当第二信令消息包括第二指示信息时,确定不更新目标波形。
作为一种示例,当该第二信令消息包括更新指示信息时,该第二信令消息用于指示更新该目标波形;或者,当该第二信令消息不包括该更新指示信息时,该第二信令消息用于指示不更新该目标波形。
也就是说,该接入网设备还可以通过在该第二信令消息中包括更新指示信息或缺省配置来指示是否更新该目标波形。譬如,当接入网设备监测到终端位于小区边缘,信道质量不佳时,如果当前的目标波形为DFTs-OFDM波形,此时可以在RRC消息中不设置更新指示信息,以通过该RRC消息指示终端不更新该目标波形。
此时,对于终端来说,根据第二信令消息确定是否更新目标波形包括:当第二信令消息包括更新指示信息时,确定更新目标波形;或者,当第二信令消息不包括更新指示信息时,确定不更新目标波形。
在本申请实施例中,接入网设备通过系统广播消息来指示该随机接入过程的MsgA中的PUSCH采用的目标波形,从而使得终端接收系统广播消息后即可确定采用哪种目标波形来上传MsgA中的上行数据。另外,对于连接态的终端,当接入网设备需要更换目标波形时,可以通过第二信令消息进行指示,提高了波形使用的灵活性。
请参考图6,该图6是根据一示例性实施例示出的一种随机接入中的消息接收方法的流程图,该方法可以应用于上述实施环境中,该方法可以包括如下几个实现步骤:
步骤601:接入网设备向终端发送波形配置信息,该波形配置信息用于指示随机接入过程的MsgA中的PUSCH采用的目标波形。
在随机接入过程中,终端在发送MsgA之前,可以由接入网设备为终端配置随机接入过程的MsgA中的PUSCH采用的目标波形,然后,该接入网设备可以向终端发送所配置的目标波形的波形配置信息,以利用该波形配置信息来指示终端在随机接入过程发送MsgA中的PUSCH采用哪种目标波形。
作为一种示例,该波形配置信息包括第一信令消息,该第一信令消息中包含用于指示目标波形的目标信息域。
也即是,还可以通过第一信令消息来指示终端采用哪种目标波形,在实施中,可以通过该第一信令消息中的目标信息域来指示该目标波形。作为一种示例,该第一信令消息可以为RRC消息,或者,该第一信令消息还可以为MAC(Media Access Control,媒体接入控制)CE(Control Element,控制单元)消息。
当该波形配置信息包括第一信令消息时,可能存在如下几种情况:
第一种情况:当目标信息域包含第一配置信息时,该目标信息域用于指示该目标波形为第一波形;或者,当该目标信息域包含第二配置信息时,该目标信息域用于指示该目标波形为第二波形。其中,该第二波形与该第一波形不同。
其中,该第一波形可以为DFTs-OFDM波形或CP-OFDM波形,同理,该第二波形可以为CP-OFDM波形或DFTs-OFDM波形,该第一波形和第二波形不同。作为一种示例,该第一波形为DFTs-OFDM波形,该第二波形为CP-OFDM波形。
也就是说,可以在该目标信息域中添加不同的配置信息来指示不同的波形。作为一种示例,该第一 配置信息可以为DFTs-OFDM波形的描述信息,该第二配置信息可以为CP-OFDM波形的描述信息。或者,该第一配置信息可以为第一数值,该第二配置信息可以为第二数值,比如,该第一数值为“1”,该第二数值为“0”,示例性的,当该目标信息域中包含“1”时,目标信息域用于指示该目标波形为DFTs-OFDM波形,当该目标信息域中包含“0”时,目标信息域用于指示该目标波形为CP-OFDM波形。
第二种情况:当该目标信息域不为空时,该目标信息域用于指示该目标波形为第一波形;或者,当该目标信息域为空时,该目标信息域用于指示该目标波形为第二波形。其中,该第二波形与该第一波形不同。
也就是说,可以通过在目标信息域中携带信息或者缺省配置的方式来指示不同的波形。作为一种示例,当该目标信息域中包含比特信息,即不为空时,该目标信息域用于指示该目标波形为DFTs-OFDM波形,当该目标信息域不包括比特信息,即为空时,该目标信息域用于指示该目标波形为CP-OFDM波形。
步骤602:终端接收该接入网设备发送的波形配置信息。
作为一种示例,该终端接收第一信令消息,以实现对该波形配置信息的接收。
步骤603:终端基于波形配置信息,确定该目标波形。
根据该波形配置信息的指示方式不同,基于波形配置信息确定目标波形的实现方式也不同,在实施中可以包括如下几种情况:
第一种情况:从第一信令消息包括的目标信息域中获取配置信息,当该配置信息为第一配置信息时,确定该目标波形为第一波形;当该配置信息为第二配置信息时,确定该目标波形为第二波形,该第一波形与该第二波形不同。
也就是说,当该接入网设备在该目标信息域中添加不同的配置信息来指示不同的波形时,该终端从该目标信息域中获取配置信息,并确定该配置信息为第一配置信息还是第二配置信息,从而确定该目标波形为第一波形还是第二波形。
第二种情况:查询第一信令消息包括的目标信息域中是否为空,当该目标信息域不为空时,确定该目标波形为第一波形,当该目标信息域为空时,确定该目标波形为第二波形。
也就是说,当接入网设备通过在目标信息域中携带信息或者缺省配置的方式来指示不同的波形时,终端查询该目标信息域是否为空,并以此来确定该目标波形为第一波形还是第二波形。
步骤604:终端向该接入网设备发送该MsgA,其中,该MsgA中包含的PUSCH采用该目标波形发送。
具体地,终端采用该目标波形,在PUSCH上发送MsgA中的上行数据(即PUSCH),该上行数据可以承载UE的标识信息以及RRC请求的原因等。
步骤605:接入网设备接收该终端发送的该MsgA,该MsgA中包含采用该目标波形发送的PUSCH。
作为一种示例,接入网设备向终端发送波形配置信息之后,还可以向终端发送第二信令消息,该第二信令消息可以用于指示是否更新该目标波形。相应地,终端接收该接入网设备发送的第二信令消息,根据该第二信令消息确定是否更新该目标波形。
也就是说,对于连接态的终端可能还会有采用两步随机接入过程进行随机接入的需求,比如终端进行切换等,此时,接入网设备可以根据信道指令,通过第二信令消息进行更新指示。作为一种示例,该第二信令消息可以为RRC消息,也就是说,可以在RRC连接过程中,通过RRC消息来指示是否要更新目标波形。
作为一种示例,当该第二信令消息包括第一指示信息时,该第二信令消息用于指示更新该目标波形;或者,当该第二信令消息包括第二指示信息时,该第二信令消息用于指示不更新该目标波形。
也即是,当在某些条件下接入网设备希望更新目标波形时,可以通过第二信令消息进行指示,使得终端在接收到该第二信令消息后,更新该目标波形。进一步地,接入网设备可以通过第二信令消息指示终端在处于连接态时是否更新该目标波形。也就是说,该接入网设备可以采用不同的指示信息来指示是否更新该目标波形,示例性的,第一指示信息可以为“1”,此时,该第二信令消息用于指示更新该目标波形;该第二指示信息可以为“0”,此时,该第二信令消息用于指示不更新该目标波形,即维持波形不变。
比如当接入网设备监测到终端具有较好的覆盖时,如果当前的目标波形为DFTs-OFDM波形,此时考虑到资源分配的灵活性,可以在RRC消息中设置第一指示信息,以指示终端更新该目标波形为CP-OFDM波形。再如,当接入网设备监测到终端位于小区边缘,信道质量不佳时,为了保证较好的覆盖,如果当前的目标波形为CP-OFDM波形,可以在RRC消息中设置第一指示信息,以指示终端更新该目标波形为DFTs-OFDM波形。
此时,对于终端来说,根据第二信令消息确定是否更新目标波形包括:当第二信令消息包括第一指示信息时,确定更新目标波形;或者,当第二信令消息包括第二指示信息时,确定不更新目标波形。
作为一种示例,当该第二信令消息包括更新指示信息时,该第二信令消息用于指示更新该目标波形;或者,当该第二信令消息不包括该更新指示信息时,该第二信令消息用于指示不更新该目标波形。
也就是说,该接入网设备还可以通过在该第二信令消息中包括更新指示信息或缺省配置来指示是否更新该目标波形。譬如,当接入网设备监测到终端位于小区边缘,信道质量不佳时,如果当前的目标波形为DFTs-OFDM波形,此时可以在RRC消息中不设置更新指示信息,以通过该RRC消息指示终端不更新该目标波形。
此时,对于终端来说,根据第二信令消息确定是否更新目标波形包括:当第二信令消息包括更新指示信息时,确定更新目标波形;或者,当第二信令消息不包括更新指示信息时,确定不更新目标波形。
在本申请实施例中,接入网设备通过信令消息来指示该随机接入过程的MsgA中的PUSCH采用的目标波形,从而使得终端接收信令消息后即可确定采用哪种目标波形来上传MsgA中的上行数据。另外,对于连接态的终端,当接入网设备需要更换目标波形时,可以通过第二信令消息进行指示,提高了波形使用的灵活性。
请参考图7,该图7是根据一示例性实施例示出的一种随机接入中的消息接收方法的流程图,该方法可以应用于上述实施环境中,该方法可以包括如下几个实现步骤:
步骤701:接入网设备向终端发送波形配置信息,该波形配置信息用于指示随机接入过程的MsgA中的PUSCH采用的目标波形。
在随机接入过程中,终端在发送MsgA之前,可以由接入网设备为终端配置随机接入过程的MsgA中的PUSCH采用的目标波形,然后,该接入网设备可以向终端发送所配置的目标波形的波形配置信息,以利用该波形配置信息来指示终端在随机接入过程发送MsgA中的PUSCH采用哪种目标波形。
作为一种示例,该波形配置信息包括GT指示信息,该GT指示信息用于指示MsgA中的前导码与PUSCH之间的传输时间间隔。
如前文所述,前导码与PUSCH之间存在GT,该GT的大小可能与小区的半径、工作的频段属性、或者MsgA的资源配置等因素有关。例如,当小区半径较大时,该GT的取值一般较大,而当小区半径较小时,需要较小的GT。再如,当工作的频段属性为非授权频段时,为了保证终端在发送MsgA之前仅需要实施一次LBT(listen before talk,对话前监听),一般要求GT应尽可能小于某个数值,示例性的,要求GT尽可能小于16us。又譬如,MsgA的前导码与PUSCH之间的GT的取值也可能随着MsgA的配置不同而不同,比如当PUSCH资源采用时分复用模式时,位于相同资源的前导码与不同时间资源上的PUSCH之间的GT也不同,请参考图8,譬如,preamble与PUSCH1之间的GT1可能小于preamble1与PUSCH2之间的GT2。另一方面,MsgA中的前导码采用DFTs-OFDM波形,如果PUSCH采用DFTs-OFDM波形,意味着终端在发送MsgA中的前导码和上行数据要采用不同的目标波形,在该种情况下,终端在发送msgA中的前导码与上行数据的中间需要转换或调整波形。从终端实现的角度来说,包括对基带的波形处理,如FFT(Fast Fourier Transformation,离散傅氏变换),以及射频发送的处理,终端针对两种不同的波形需要采用不同的实现方式,因此发送MsgA中的前导码和上行数据采用的波形不同时,中间可能需要一定的调整时间。所以,为了保证终端在处理过程中不出现问题,这里可以考虑基于该调整时间与GT之间的大小关系来确定PUSCH采用的波形。其中,假设将两种波形调整所需的最小调整时间为目标数值,这里可以记为deltaT。
作为一种示例,当该GT指示信息指示的该传输时间间隔小于目标数值时,该GT指示信息用于指示该目标波形为DFTs-OFDM波形;或者,当该GT指示信息指示的该传输时间间隔大于或等于该目标数值时,该GT指示信息用于指示该目标波形为CP-OFDM波形。
也就是说,当该GT指示信息指示的该传输时间间隔小于目标数值时,说明若发送前导码和上行数据采用两种不同的波形,可能来不及波形转换,因此这里可以为终端配置与前导码相同的波形。示例性的,该目标波形也为DFTs-OFDM波形。或者,当该GT指示信息指示的该传输时间间隔大于或等于该目标数值时,可以采用与前导码不同的波形,示例性的,该目标波形为CP-OFDM波形。
其中,该目标数值可以是预先定义的,或者,该目标数值也可以是由该接入网设备指示的,进一步地,当该目标数值也可以由该接入网设备指示时,该接入网设备可以通过信令消息进行指示,譬如,该信令消息可以为系统广播消息或RRC消息等,本申请实施例对此不作限定。
当然,需要说明的是,上述仅是以当该GT指示信息指示的该传输时间间隔大于或等于该目标数值时,该GT指示信息用于指示该目标波形为CP-OFDM波形为例进行说明,在另一实施例中,当该GT指示信息指示的该传输时间间隔大于或等于该目标数值时,也可以采用与前导码相同的波形,即该目标 波形也可以为DFTs-OFDM波形,本申请实施例对此不作限定。
步骤702:终端接收该接入网设备发送的波形配置信息。
作为一种示例,该终端接收第一信令消息,以实现对该波形配置信息的接收。
步骤703:终端基于波形配置信息,确定该目标波形。
作为一种示例,基于波形配置信息确定目标波形的实现可以包括基于GT指示信息,确定目标波形。进一步地,当该GT指示信息指示的该传输时间间隔小于目标数值时,确定该目标波形为DFTs-OFDM波形;或者,当该GT指示信息指示的该传输时间间隔大于或等于该目标数值时,确定该目标波形为CP-OFDM波形。
也就是说,当GT指示信息指示的传输时间间隔小于目标数值时,说明采用与前导码不同的波形将来不及进行波形转换处理,因此,这里将该目标波形确定为与前导码采用的波形相同,作为一种示例,该目标波形为DFTs-OFDM。当该指示信息指示的传输时间间隔大于或等于目标数值时,可以采用与前导码不同的波形,因此,确定该目标波形为CP-OFDM波形。
步骤704:终端向该接入网设备发送该MsgA,其中,该MsgA中包含的PUSCH采用该目标波形发送。
具体地,终端采用该目标波形,在PUSCH上发送MsgA中的上行数据(即PUSCH),该上行数据可以承载UE的标识信息以及RRC请求的原因等。
步骤705:接入网设备接收该终端发送的该MsgA,该MsgA中包含采用该目标波形发送的PUSCH。
作为一种示例,接入网设备向终端发送波形配置信息之后,还可以向终端发送第二信令消息,该第二信令消息可以用于指示是否更新该目标波形。相应地,终端接收该接入网设备发送的第二信令消息,根据该第二信令消息确定是否更新该目标波形。
也即是,当在某些条件下接入网设备希望更新目标波形时,可以通过第二信令消息进行指示,使得终端在接收到该第二信令消息后,更新该目标波形。进一步地,接入网设备可以通过第二信令消息指示终端在处于连接态时是否更新该目标波形。也就是说,对于连接态的终端可能还会有采用两步随机接入过程进行随机接入的需求,比如终端进行切换等,此时,接入网设备可以根据信道质量等条件,通过第二信令消息进行更新指示。作为一种示例,该第二信令消息可以为RRC消息,也就是说,可以在建立RRC连接过程中,通过RRC消息来指示是否要更新目标波形。
作为一种示例,当该第二信令消息包括第一指示信息时,该第二信令消息用于指示更新该目标波形;或者,当该第二信令消息包括第二指示信息时,该第二信令消息用于指示不更新该目标波形。
也就是说,该接入网设备可以采用不同的指示信息来指示是否更新该目标波形,示例性的,第一指示信息为“1”,此时,该第二信令消息用于指示更新该目标波形;该第二指示信息为“0”,此时,该第二信令消息用于指示不更新该目标波形,即可以维持波形不变。
比如当接入网设备监测到终端具有较好的覆盖时,如果当前的目标波形为DFTs-OFDM波形,此时考虑到资源分配的灵活性,可以在RRC消息中设置第一指示信息,以指示终端更新该目标波形为CP-OFDM波形。再如,当接入网设备监测到终端位于小区边缘,信道质量不佳时,为了保证较好的覆盖,如果当前的目标波形为CP-OFDM波形,可以在RRC消息中设置第一指示信息,以指示终端更新该目标波形为DFTs-OFDM波形。
此时,对于终端来说,根据第二信令消息确定是否更新目标波形包括:当第二信令消息包括第一指示信息时,确定更新目标波形;或者,当第二信令消息包括第二指示信息时,确定不更新目标波形。
作为一种示例,当该第二信令消息包括更新指示信息时,该第二信令消息用于指示更新该目标波形;或者,当该第二信令消息不包括该更新指示信息时,该第二信令消息用于指示不更新该目标波形。
也就是说,该接入网设备还可以通过在该第二信令消息中包括更新指示信息或缺省配置来指示是否更新该目标波形。譬如,当接入网设备监测到终端位于小区边缘,信道质量不佳时,如果当前的目标波形为DFTs-OFDM波形,此时可以在RRC消息中不设置更新指示信息,以通过该RRC消息指示终端不更新该目标波形。
此时,对于终端来说,根据第二信令消息确定是否更新目标波形包括:当第二信令消息包括更新指示信息时,确定更新目标波形;或者,当第二信令消息不包括更新指示信息时,确定不更新目标波形。
在本申请实施例中,接入网设备通过GT指示信息来指示该随机接入过程的MsgA中的PUSCH采用的目标波形,从而使得终端接收MsgA的配置信息后,根据该配置信息中的GT指示信息即可确定采用哪种目标波形来上传MsgA中的上行数据。另外,对于MsgA中的PUSCH的波形的设置可以充分考虑不同大小的GT的影响,从而有利于终端实现。此外,对于连接态的终端,当接入网设备需要更换目标波形时,可以通过第二信令消息进行指示,提高了波形使用的灵活性。
请参考图9,该图9是根据一示例性实施例示出的一种随机接入中的消息接收方法的流程图,该方法可以应用于上述实施环境中,该方法可以包括如下几个实现步骤:
步骤901:接入网设备向终端发送波形配置信息,该波形配置信息用于指示随机接入过程的MsgA中的PUSCH采用的目标波形。
在随机接入过程中,终端在发送MsgA之前,可以由接入网设备为终端配置随机接入过程的MsgA中的PUSCH采用的目标波形,然后,该接入网设备可以向终端发送所配置的目标波形的波形配置信息,以利用该波形配置信息来指示终端在随机接入过程发送MsgA中的PUSCH采用哪种目标波形。
作为一种示例,该波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;其中,该GT指示信息用于指示该MsgA中的前导码与该PUSCH之间的传输时间间隔,该系统广播消息或该第一信令消息中包含用于指示该目标波形的目标信息域。
如前文所述,为了使得终端能够成功发送MsgA,可以考虑GT对波形转换的影响,因此,在一些实施例中,可以考虑基于GT与波形转换所需的调整时间之间的大小关系,并结合接入网设备通过系统广播消息或信令消息的波形指示来确定PUSCH采用的波形。其中,假设将两种波形调整所需的最小调整时间为目标数值,这里可以记为deltaT。
其中,该目标数值可以是预先定义的,或者,该目标数值也可以是由该接入网设备指示的,进一步地,当该目标数值也可以由该接入网设备指示时,该接入网设备可以通过信令消息进行指示,譬如,该信令消息可以为系统广播消息或RRC消息等,本申请实施例对此不作限定。
步骤902:终端接收该接入网设备发送的波形配置信息。
作为一种示例,该终端接收第一信令消息,以实现对该波形配置信息的接收。
步骤903:终端基于GT指示信息和目标信息域,确定该目标波形。
作为一种示例,当GT指示信息指示的传输时间间隔小于目标数值时,确定该目标波形为DFTs-OFDM波形;或者,当GT指示信息指示的传输时间间隔大于或等于目标数值时,根据目标信息域确定该目标波形。
也就是说,当该GT指示信息指示的该传输时间间隔小于目标数值时,说明若发送前导码和上行数据采用两种不同的波形,可能来不及波形转换,因此这里可以为终端配置与前导码相同的波形。示例性的,该目标波形也为DFTs-OFDM波形。或者,当该GT指示信息指示的该传输时间间隔大于或等于该目标数值时,此时可以查询目标信息域中的内容,并根据查询结果确定采用哪种波形。
需要说明的是,根据目标信息域确定目标波形的具体实现可以参见上述各个实施例,示例性的,当该目标信息域携带第一配置信息时,确定该目标波形为第一波形。
步骤904:终端向该接入网设备发送该MsgA,其中,该MsgA中包含的的PUSCH采用该目标波形发送。
具体地,终端采用该目标波形,在PUSCH上发送MsgA中的上行数据(即PUSCH),该上行数据可以承载UE的标识信息以及RRC请求的原因等。
步骤905:接入网设备接收该终端发送的该MsgA,该MsgA中包含采用该目标波形发送的PUSCH。
作为一种示例,接入网设备向终端发送波形配置信息之后,还可以向终端发送第二信令消息,该第二信令消息可以用于指示是否更新该目标波形。相应地,终端接收该接入网设备发送的第二信令消息,根据该第二信令消息确定是否更新该目标波形。
也即是,当在某些条件下接入网设备希望更新目标波形时,可以通过第二信令消息进行指示,使得终端在接收到该第二信令消息后,更新该目标波形。进一步地,接入网设备可以通过第二信令消息指示终端在处于连接态时是否更新该目标波形。也就是说,对于连接态的终端可能还会有采用两步随机接入过程进行随机接入的需求,比如终端进行切换等,此时,接入网设备可以根据信道指令,通过第二信令消息进行更新指示。作为一种示例,该第二信令消息可以为RRC消息,也就是说,可以在建立RRC连接过程中,通过RRC消息来指示是否要更新目标波形。
作为一种示例,当该第二信令消息包括第一指示信息时,该第二信令消息用于指示更新该目标波形;或者,当该第二信令消息包括第二指示信息时,该第二信令消息用于指示不更新该目标波形。
也就是说,该接入网设备可以采用不同的指示信息来指示是否更新该目标波形,示例性的,第一指示信息为“1”,此时,该第二信令消息用于指示更新该目标波形;该第二指示信息为“0”,此时,该第二信令消息用于指示不更新该目标波形,即可以维持波形不变。
比如当接入网设备监测到终端具有较好的覆盖时,如果当前的目标波形为DFTs-OFDM波形,此时考虑到资源分配的灵活性,可以在RRC消息中设置第一指示信息,以指示终端更新该目标波形为CP-OFDM波形。再如,当接入网设备监测到终端位于小区边缘,信道质量不佳时,为了保证较好的覆盖,如果当前的目标波形为CP-OFDM波形,可以在RRC消息中设置第一指示信息,以指示终端更新 该目标波形为DFTs-OFDM波形。
此时,对于终端来说,根据第二信令消息确定是否更新目标波形包括:当第二信令消息包括第一指示信息时,确定更新目标波形;或者,当第二信令消息包括第二指示信息时,确定不更新目标波形。
作为一种示例,当该第二信令消息包括更新指示信息时,该第二信令消息用于指示更新该目标波形;或者,当该第二信令消息不包括该更新指示信息时,该第二信令消息用于指示不更新该目标波形。
也就是说,该接入网设备还可以通过在该第二信令消息中包括更新指示信息或缺省配置来指示是否更新该目标波形。譬如,当接入网设备监测到终端位于小区边缘,信道质量不佳时,如果当前的目标波形为DFTs-OFDM波形,此时可以在RRC消息中不设置更新指示信息,以通过该RRC消息指示终端不更新该目标波形。
此时,对于终端来说,根据第二信令消息确定是否更新目标波形包括:当第二信令消息包括更新指示信息时,确定更新目标波形;或者,当第二信令消息不包括更新指示信息时,确定不更新目标波形。
在本申请实施例中,接入网设备通过GT指示信息结合系统广播消息或信令消息来指示该随机接入过程的MsgA中的PUSCH采用的目标波形,从而使得终端接收MsgA的配置信息后,根据该配置信息中的GT指示信息,并结合系统广播消息或信令消息即可确定采用哪种目标波形来上传MsgA中的上行数据。另外,对于MsgA中的PUSCH的波形的设置可以充分考虑不同大小的GT的影响,从而有利于终端实现。此外,对于连接态的终端,当接入网设备需要更换目标波形时,可以通过第二信令消息进行指示,提高了波形使用的灵活性。
需要说明的是,上述仅是以该GT指示信息由接入网设备指示给终端为例进行说明,在另一实施例中,该GT指示信息还可以是预定义的,此时终端也可以结合系统广播消息或第一信令消息来确定该MsgA中的PUSCH采用的波形。在实施中,终端可以获取该GT指示信息,该GT指示信息用于指示该MsgA中的前导码与该PUSCH之间的传输时间间隔,然后判断该GT指示信息与目标数值之间的大小关系。当该GT指示信息指示的该传输时间间隔小于目标数值时,确定该目标波形为DFTs-OFDM波形;或者,当该GT指示信息指示的该传输时间间隔大于或等于该目标数值时,根据该目标信息域确定该目标波形。其实现原理可以参见上述图9所示实施例,这里不再重复赘述。
请参考图10,该图10是根据一示例性实施例示出的一种随机接入中的消息接收装置的结构图,该装置可以配置于终端中,该装置可以包括:接收模块1010,用于接收波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
在本申请一种可能的实现方式中,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述第一信令消息为无线资源控制RRC消息。
在本申请一种可能的实现方式中,当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
在本申请一种可能的实现方式中,当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
在本申请一种可能的实现方式中,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
在本申请一种可能的实现方式中,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述接收模块1010还用于:当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,当所述GT指示信息指示 的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
在本申请一种可能的实现方式中,所述接收模块1010还用于:当所述波形配置信息包括系统广播消息或第一信令消息,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域时,获取预定义的GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔;当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
在本申请一种可能的实现方式中,请参考图11,所述装置还包括:第一发送模块1020,用于发送所述MsgA,其中,所述MsgA中包含的PUSCH采用所述目标波形发送。
在本申请一种可能的实现方式中,所述接收模块1010还用于:接收第二信令消息,所述第二信令消息用于指示是否更新所述目标波形;根据所述第二信令消息确定是否更新所述目标波形。
在本申请一种可能的实现方式中,所述接收模块1010用于:当所述第二信令消息包括第一指示信息时,确定更新所述目标波形;或者,当所述第二信令消息包括第二指示信息时,确定不更新所述目标波形。
在本申请一种可能的实现方式中,所述接收模块1010用于:当所述第二信令消息包括更新指示信息时,确定更新所述目标波形;或者,当所述第二信令消息不包括所述更新指示信息时,确定不更新所述目标波形。
请参考图12,该图12是根据一示例性实施例示出的一种随机接入中的消息接收装置的结构图,该装置可以配置于接入网设备中,该装置可以包括:
第二发送模块1210,用于发送波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
在本申请一种可能的实现方式中,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述第一信令消息为无线资源控制RRC消息。
在本申请一种可能的实现方式中,当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;其中,所述第二波形与所述第一波形不同。
在本申请一种可能的实现方式中,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
在本申请一种可能的实现方式中,当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
在本申请一种可能的实现方式中,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
在本申请一种可能的实现方式中,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
在本申请一种可能的实现方式中,所述第二发送模块1210还用于:接收所述MsgA,所述MsgA中包含采用所述目标波形发送的PUSCH。
在本申请一种可能的实现方式中,所述第二发送模块1210还用于:发送第二信令消息,所述第二信令消息用于指示是否更新所述目标波形。
在本申请一种可能的实现方式中,当所述第二信令消息包括第一指示信息时,所述第二信令消息用于指示更新所述目标波形;或者,当所述第二信令消息包括第二指示信息时,所述第二信令消息用于指示不更新所述目标波形。
在本申请一种可能的实现方式中,当所述第二信令消息包括更新指示信息时,所述第二信令消息用 于指示更新所述目标波形;或者,当所述第二信令消息不包括所述更新指示信息时,所述第二信令消息用于指示不更新所述目标波形。
请参考图13,其示出了本申请一个示例性实施例提供的终端的结构示意图,该终端包括:处理器1301、接收器1302、发射器1303、存储器1304和总线1305。
处理器1301包括一个或者一个以上处理核心,处理器1301通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
接收器1302和发射器1303可以实现为一个通信组件,该通信组件可以是一块通信芯片。
存储器1304通过总线1305与处理器1301相连。
存储器1304可用于存储至少一个指令,处理器1301用于执行该至少一个指令,以实现上述各个方法实施例中的终端执行的各个步骤。
此外,存储器1304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),静态随时存取存储器(SRAM),只读存储器(ROM),磁存储器,快闪存储器,可编程只读存储器(PROM)。
本申请提供了一种计算机可读存储介质,所述存储介质中存储有至少一条指令,所述至少一条指令由所述处理器加载并执行以实现上述各个实施例提供的方法。
本申请还提供了一种计算机程序产品,当计算机程序产品在计算机上运行时,使得计算机执行上述各个实施例提供的方法。
请参考图14,其示出了本申请一个示例性实施例提供的接入网设备的结构示意图,该接入网设备包括:处理器1401、接收器1402、发射器1403、存储器1404和总线1405。
处理器1401包括一个或者一个以上处理核心,处理器1401通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
接收器1402和发射器1403可以实现为一个通信组件,该通信组件可以是一块通信芯片。
存储器1404通过总线1405与处理器1401相连。
存储器1404可用于存储至少一个指令,处理器1401用于执行该至少一个指令,以实现上述各个方法实施例中的接入网设备执行的各个步骤。
此外,存储器1404可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),静态随时存取存储器(SRAM),只读存储器(ROM),磁存储器,快闪存储器,可编程只读存储器(PROM)。
本申请提供了一种计算机可读存储介质,所述存储介质中存储有至少一条指令,所述至少一条指令由所述处理器加载并执行以实现上述各个实施例提供的方法。
本申请还提供了一种计算机程序产品,当计算机程序产品在计算机上运行时,使得计算机执行上述各个实施例提供的方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本申请的较佳实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (64)

  1. 一种随机接入中的消息接收方法,其特征在于,应用于终端中,所述方法包括:
    接收波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
  2. 如权利要求1所述的方法,其特征在于,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
  3. 如权利要求1所述的方法,其特征在于,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
  4. 如权利要求3所述的方法,其特征在于,所述第一信令消息为无线资源控制RRC消息。
  5. 如权利要求2或3所述的方法,其特征在于,
    当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,
    当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;
    其中,所述第二波形与所述第一波形不同。
  6. 如权利要求2或3所述的方法,其特征在于,
    当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,
    当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;
    其中,所述第二波形与所述第一波形不同。
  7. 如权利要求1所述的方法,其特征在于,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
  8. 如权利要求7所述的方法,其特征在于,
    当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,
    当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
  9. 如权利要求8所述的方法,其特征在于,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
  10. 如权利要求1所述的方法,其特征在于,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;
    其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
  11. 如权利要求10所述的方法,其特征在于,所述方法还包括:
    当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,
    当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
  12. 如权利要求1所述的方法,其特征在于,所述波形配置信息包括系统广播消息或第一信令消息,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域,所述方法还包括:
    获取预定义的GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔;
    当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,
    当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
  13. 如权利要求1-12任一项所述的方法,其特征在于,所述方法还包括:
    发送所述MsgA,其中,所述MsgA中包含的PUSCH采用所述目标波形发送。
  14. 如权利要求13所述的方法,其特征在于,所述发送所述MsgA之后,还包括:
    接收第二信令消息,所述第二信令消息用于指示是否更新所述目标波形;
    根据所述第二信令消息确定是否更新所述目标波形。
  15. 如权利要求14所述的方法,其特征在于,所述根据所述第二信令消息确定是否更新所述目标波形,包括:
    当所述第二信令消息包括第一指示信息时,确定更新所述目标波形;或者,
    当所述第二信令消息包括第二指示信息时,确定不更新所述目标波形。
  16. 如权利要求14所述的方法,其特征在于,所述根据所述第二信令消息确定是否更新所述目标波形,包括:
    当所述第二信令消息包括更新指示信息时,确定更新所述目标波形;或者,
    当所述第二信令消息不包括所述更新指示信息时,确定不更新所述目标波形。
  17. 一种随机接入中的消息接收方法,其特征在于,应用于接入网设备中,所述方法包括:
    发送波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
  18. 如权利要求17所述的方法,其特征在于,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
  19. 如权利要求17所述的方法,其特征在于,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
  20. 如权利要求19所述的方法,其特征在于,所述第一信令消息为无线资源控制RRC消息。
  21. 如权利要求18或19所述的方法,其特征在于,
    当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,
    当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;
    其中,所述第二波形与所述第一波形不同。
  22. 如权利要求18或19所述的方法,其特征在于,
    当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,
    当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;
    其中,所述第二波形与所述第一波形不同。
  23. 如权利要求17所述的方法,其特征在于,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
  24. 如权利要求23所述的方法,其特征在于,
    当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,
    当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
  25. 如权利要求24所述的方法,其特征在于,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
  26. 如权利要求17所述的方法,其特征在于,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;
    其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
  27. 如权利要求17-26任一项所述的方法,其特征在于,所述方法还包括:
    接收所述MsgA,所述MsgA中包含采用所述目标波形发送的PUSCH。
  28. 如权利要求27所述的方法,其特征在于,所述接收所述MsgA,之后还包括:
    发送第二信令消息,所述第二信令消息用于指示是否更新所述目标波形。
  29. 如权利要求28所述的方法,其特征在于,
    当所述第二信令消息包括第一指示信息时,所述第二信令消息用于指示更新所述目标波形;或者,
    当所述第二信令消息包括第二指示信息时,所述第二信令消息用于指示不更新所述目标波形。
  30. 如权利要求28所述的方法,其特征在于,
    当所述第二信令消息包括更新指示信息时,所述第二信令消息用于指示更新所述目标波形;或者,
    当所述第二信令消息不包括所述更新指示信息时,所述第二信令消息用于指示不更新所述目标波形。
  31. 一种随机接入中的消息接收装置,其特征在于,配置于终端中,所述装置包括:
    接收模块,用于接收波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
  32. 如权利要求31所述的装置,其特征在于,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
  33. 如权利要要求31所述的装置,其特征在于,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
  34. 如权利要求33所述的装置,其特征在于,所述第一信令消息为无线资源控制RRC消息。
  35. 如权利要求32或33所述的装置,其特征在于,
    当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,
    当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;
    其中,所述第二波形与所述第一波形不同。
  36. 如权利要求32或33所述的装置,其特征在于,
    当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,
    当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;
    其中,所述第二波形与所述第一波形不同。
  37. 如权利要求31所述的装置,其特征在于,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
  38. 如权利要求37所述的装置,其特征在于,
    当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,
    当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
  39. 如权利要求38所述的装置,其特征在于,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
  40. 如权利要求31所述的装置,其特征在于,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;
    其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
  41. 如权利要求40所述的装置,其特征在于,所述接收模块还用于:
    当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,
    当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
  42. 如权利要求31所述装置,其特征在于,所述接收模块还用于:
    当所述波形配置信息包括系统广播消息或第一信令消息,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域时,获取预定义的GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔;
    当所述GT指示信息指示的所述传输时间间隔小于目标数值时,确定所述目标波形为DFTs-OFDM波形;或者,
    当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,根据所述目标信息域确定所述目标波形。
  43. 如权利要求31-42任一项所述的装置,其特征在于,所述装置还包括:
    第一发送模块,用于发送所述MsgA,其中,所述MsgA中包含的PUSCH采用所述目标波形发送。
  44. 如权利要求43所述的装置,其特征在于,所述接收模块还用于:
    接收第二信令消息,所述第二信令消息用于指示是否更新所述目标波形;
    根据所述第二信令消息确定是否更新所述目标波形。
  45. 如权利要求44所述的装置,其特征在于,所述接收模块用于:
    当所述第二信令消息包括第一指示信息时,确定更新所述目标波形;或者,
    当所述第二信令消息包括第二指示信息时,确定不更新所述目标波形。
  46. 如权利要求44所述的装置,其特征在于,所述接收模块用于:
    当所述第二信令消息包括更新指示信息时,确定更新所述目标波形;或者,
    当所述第二信令消息不包括所述更新指示信息时,确定不更新所述目标波形。
  47. 一种随机接入中的消息接收装置,其特征在于,配置于接入网设备中,所述装置包括:
    第二发送模块,用于发送波形配置信息,所述波形配置信息用于指示随机接入过程的MsgA中的物理上行共享信道PUSCH采用的目标波形。
  48. 如权利要求47所述的装置,其特征在于,所述波形配置信息包括系统广播消息,所述系统广播消息中包含用于指示所述目标波形的目标信息域。
  49. 如权利要求47所述的装置,其特征在于,所述波形配置信息包括第一信令消息,所述第一信令消息中包含用于指示所述目标波形的目标信息域。
  50. 如权利要求49所述的装置,其特征在于,所述第一信令消息为无线资源控制RRC消息。
  51. 如权利要求48或49所述的装置,其特征在于,
    当所述目标信息域包含第一配置信息时,所述目标信息域用于指示所述目标波形为第一波形;或者,
    当所述目标信息域包含第二配置信息时,所述目标信息域用于指示所述目标波形为第二波形;
    其中,所述第二波形与所述第一波形不同。
  52. 如权利要求48或49所述的装置,其特征在于,
    当所述目标信息域不为空时,所述目标信息域用于指示所述目标波形为第一波形;或者,
    当所述目标信息域为空时,所述目标信息域用于指示所述目标波形为第二波形;
    其中,所述第二波形与所述第一波形不同。
  53. 如权利要求47所述的装置,其特征在于,所述波形配置信息包括保护间隔GT指示信息,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔。
  54. 如权利要求53所述的装置,其特征在于,
    当所述GT指示信息指示的所述传输时间间隔小于目标数值时,所述GT指示信息用于指示所述目标波形为离散傅里叶变换的正交频分复用DFTs-OFDM波形;或者,
    当所述GT指示信息指示的所述传输时间间隔大于或等于所述目标数值时,所述GT指示信息用于指示所述目标波形为基于循环前缀的正交频分复用CP-OFDM波形。
  55. 如权利要求54所述的装置,其特征在于,所述目标数值是预定义的,或者,所述目标数值由接入网设备指示。
  56. 如权利要求47所述的装置,其特征在于,所述波形配置信息包括GT指示信息,且还包括系统广播消息或第一信令消息;
    其中,所述GT指示信息用于指示所述MsgA中的前导码与所述PUSCH之间的传输时间间隔,所述系统广播消息或所述第一信令消息中包含用于指示所述目标波形的目标信息域。
  57. 如权利要求47-56任一项所述的装置,其特征在于,所述第二发送模块还用于:
    接收所述MsgA,所述MsgA中包含采用所述目标波形发送的PUSCH。
  58. 如权利要求57所述的装置,其特征在于,所述第二发送模块还用于:
    发送第二信令消息,所述第二信令消息用于指示是否更新所述目标波形。
  59. 如权利要求58所述的装置,其特征在于,
    当所述第二信令消息包括第一指示信息时,所述第二信令消息用于指示更新所述目标波形;或者,
    当所述第二信令消息包括第二指示信息时,所述第二信令消息用于指示不更新所述目标波形。
  60. 如权利要求58所述的装置,其特征在于,
    当所述第二信令消息包括更新指示信息时,所述第二信令消息用于指示更新所述目标波形;或者,
    当所述第二信令消息不包括所述更新指示信息时,所述第二信令消息用于指示不更新所述目标波形。
  61. 一种通信系统,其特征在于,包括终端和接入网设备,终端包括权利要求31至46任一所述的装置,接入网设备包括权利要求47至60任一所述的装置。
  62. 一种终端,其特征在于,所述终端包括处理器和存储器,所述存储器存储有至少一条指令,所述至少一条指令用于被所述处理器执行以实现上述权利要求1至16中任一所述的方法。
  63. 一种接入网设备,其特征在于,所述接入网设备包括处理器和存储器,所述存储器存储有至少一条指令,所述至少一条指令用于被所述处理器执行以实现上述权利要求17至30中任一所述的方法。
  64. 一种计算机可读存储介质,其特征在于,所述存储介质存储有至少一条指令,所述至少一条指令用于被处理器执行以实现上述权利要求1至16中任一所述的方法,或者实现上述权利要求17至30中任一所述的方法。
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