CN114698139A - Data transmission method, device and equipment - Google Patents

Data transmission method, device and equipment Download PDF

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Publication number
CN114698139A
CN114698139A CN202011627675.0A CN202011627675A CN114698139A CN 114698139 A CN114698139 A CN 114698139A CN 202011627675 A CN202011627675 A CN 202011627675A CN 114698139 A CN114698139 A CN 114698139A
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China
Prior art keywords
ros
reference signal
feedback information
electronic device
downlink scheduling
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CN202011627675.0A
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Chinese (zh)
Inventor
张萌
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Priority to CN202011627675.0A priority Critical patent/CN114698139A/en
Priority to PCT/CN2021/133916 priority patent/WO2022142935A1/en
Publication of CN114698139A publication Critical patent/CN114698139A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides a data transmission method, a device and equipment, wherein the method comprises the following steps: receiving a first signaling, wherein the first signaling comprises: mapping relation between the reference signal and the RO; if the mapping relation between the reference signal and the RO is 1 to n, respectively sending preambles on M ROs, wherein the M ROs are ROs associated with a first reference signal, the first reference signal is a reference signal determined based on beam detection, n is a natural number larger than 1, M is larger than or equal to 2 and smaller than or equal to n, and M is a natural number. The method and the device can improve the efficiency of the electronic equipment accessing the network side equipment in the random access process.

Description

Data transmission method, device and equipment
Technical Field
The present application relates to the field of communications, and in particular, to a data transmission method, apparatus, and device.
Background
At present, the problem of low efficiency of accessing electronic equipment to network side equipment exists in the random access process.
Disclosure of Invention
The application provides a data transmission method, a data transmission device and data transmission equipment, which can improve the efficiency of accessing electronic equipment to network side equipment in the random access process.
In a first aspect, an embodiment of the present application provides a data transmission method, including:
receiving a first signaling, wherein the first signaling comprises: mapping relation between reference signal and random access channel opportunity (RO);
if the mapping relation between the reference signal and the RO is 1 to n, respectively sending the preamble on M ROs, wherein the M ROs are the ROs associated with the first reference signal, the first reference signal is the reference signal determined based on beam detection, n is a natural number larger than 1, 2 is larger than or equal to M and is smaller than or equal to n, and M is a natural number.
In the method, the lead codes are sent on at least 2 ROs, so that the possibility that the network side equipment receives the lead codes is improved, the possibility that the electronic equipment is successfully accessed into the network side equipment is also improved, and the random access efficiency of the electronic equipment is improved.
In one possible implementation, the reference signal is a synchronization signal block SSB, or a channel state information reference signal CSI-RS.
In one possible implementation, the sending preambles on the M ROs respectively includes:
transmitting the preamble in a beam scanning or beam repeating manner on the M ROs.
In one possible implementation, the sending preambles on the M ROs respectively includes:
acquiring RO corresponding to the first type according to a preset corresponding relation between the type of the electronic equipment and the RO;
selecting M ROs corresponding to the first type from the ROs associated with the first reference signal;
transmitting the preambles on the selected M ROs, respectively.
In one possible implementation, the sending preambles on the M ROs respectively includes:
acquiring a lead code corresponding to the first type according to a preset corresponding relation between the type of the electronic equipment and the lead code;
selecting a preamble from the preambles corresponding to the first type;
transmitting the selected preambles on the M ROs, respectively.
In one possible implementation manner, the method further includes:
calculating a first listening window according to the time domain information of at least one RO in the M ROs; the first monitoring window is used for indicating a time period for monitoring downlink scheduling information; the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information; the first feedback information is feedback information for the preamble; monitoring the downlink scheduling information in the first monitoring window; alternatively, the first and second electrodes may be,
calculating a first listening window according to the time domain information of at least one RO in the M ROs; the first monitoring window is used for indicating a time period for monitoring first feedback information; the first feedback information is feedback information for the preamble; and monitoring the first feedback information in the first monitoring window.
In one possible implementation, the calculating the first listening window includes:
and calculating the first listening window according to the time domain information of one designated RO in the M ROs and a preset first time length.
In one possible implementation, the calculating a first listening window includes:
and respectively calculating a monitoring window corresponding to each RO according to the time domain information of each RO in the M ROs and a preset second time length to obtain the first monitoring window.
In one possible implementation manner, the method further includes:
calculating a random access radio network temporary identifier (RA-RNTI) corresponding to the designated RO in the M ROs;
if the downlink scheduling information is received in the first listening window, the RA-RNTI is used for checking the downlink scheduling information;
and if the verification is successful, receiving first feedback information on the downlink transmission resource indicated by the downlink scheduling information.
In one possible implementation manner, the method further includes:
calculating RA-RNTI corresponding to each RO in the M ROs;
if the downlink scheduling information is received in the first listening window, sequentially using RA-RNTI corresponding to each RO to check the downlink scheduling information;
and if the verification is successful, receiving first feedback information on the downlink transmission resource indicated by the downlink scheduling information.
In one possible implementation manner, the method further includes:
if the first feedback information is not successfully received in the first listening window, calculating the transmission power used by each RO for resending the lead code; the calculated transmission power of each RO is larger than the transmission power of the lead code sent by the RO at the previous time;
retransmitting the preamble at each of the M ROs according to the calculated transmit power.
In a second aspect, an embodiment of the present application provides a data transmission method, including:
sending a first signaling, wherein the first signaling comprises a mapping relation between a reference signal and an RO; if the mapping relation between the reference signal and the RO is 1 to n, the first signaling is used for instructing the electronic device to respectively send the preambles on M ROs, wherein the M ROs are associated with the first reference signal, the first reference signal is a reference signal determined by the electronic device based on beam detection, n is a natural number greater than 1, M is greater than or equal to 2 and less than or equal to n, and M is a natural number.
In one possible implementation, the reference signal is an SSB, or CSI-RS.
In one possible implementation manner, the method further includes:
receiving a lead code sent by the electronic equipment on RO;
calculating RA-RNTI corresponding to the designated RO; the designated RO is one of the ROs that received the preamble;
scrambling downlink scheduling information by using the RA-RNTI; the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information; the first feedback information is feedback information of the preamble;
and sending the downlink scheduling information to the electronic equipment.
In one possible implementation manner, the method further includes:
receiving a lead code sent by the electronic equipment on RO;
selecting one RO from the ROs receiving the lead code, and calculating RA-RNTI corresponding to the RO;
scrambling downlink scheduling information by using the RA-RNTI; the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information; the first feedback information is feedback information of the preamble;
and sending the downlink scheduling information to the electronic equipment.
In a third aspect, an embodiment of the present application provides a data transmission apparatus, including:
a receiving unit, configured to receive a first signaling, where the first signaling includes: mapping relation between the reference signal and the RO;
a transmitting unit, configured to transmit preambles on M ROs, respectively, if a mapping relationship between the reference signal and the ROs is 1 to n, where the M ROs are ROs associated with a first reference signal, the first reference signal is a reference signal determined based on beam detection, n is a natural number greater than 1, 2 ≦ M ≦ n, and M is a natural number.
In a fourth aspect, an embodiment of the present application provides a data transmission apparatus, including:
a sending unit, configured to send a first signaling, where the first signaling includes a mapping relationship between a reference signal and an RO; if the mapping relation between the reference signal and the RO is 1 to n, the first signaling is used for instructing the electronic device to respectively send preambles on M ROs, wherein the M ROs are the ROs associated with the first reference signal, the first reference signal is the reference signal determined by the electronic device based on beam detection, n is a natural number greater than 1, M is greater than or equal to 2 and less than or equal to n, and M is a natural number.
In a fifth aspect, an embodiment of the present application provides an electronic device, including:
a transceiver configured to receive a first signaling, the first signaling comprising: mapping relation between the reference signal and the RO; if the mapping relation between the reference signal and the RO is 1 to n, respectively sending preambles on M ROs, wherein the M ROs are ROs associated with a first reference signal, the first reference signal is a reference signal determined based on beam detection, n is a natural number larger than 1, M is larger than or equal to 2 and smaller than or equal to n, and M is a natural number.
In a sixth aspect, an embodiment of the present application provides a network side device, including:
a transmitter, configured to transmit a first signaling, where the first signaling includes a mapping relationship between a reference signal and an RO; if the mapping relation between the reference signal and the RO is 1 to n, the first signaling is used for instructing the electronic device to respectively send preambles on M ROs, wherein the M ROs are the ROs associated with the first reference signal, the first reference signal is the reference signal determined by the electronic device based on beam detection, n is a natural number greater than 1, M is greater than or equal to 2 and less than or equal to n, and M is a natural number.
In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute the method of any one of the first aspect or the second aspect.
In an eighth aspect, the present application provides a computer program for performing the method of the first aspect when the computer program is executed by a computer.
In a possible design, the program in the eighth aspect may be stored in whole or in part on a storage medium packaged with the processor, or in part or in whole on a memory not packaged with the processor.
Drawings
FIG. 1 is a schematic diagram of a system suitable for the present application;
FIG. 2 is a flow chart of another embodiment of a data transmission method of the present application;
FIG. 3 is a flow chart of another embodiment of a data transmission method of the present application;
FIG. 4 is a flow chart of another embodiment of a data transmission method of the present application;
FIG. 5 is a flow chart of another embodiment of a data transmission method of the present application;
FIG. 6 is a flow chart of another embodiment of a data transmission method of the present application;
FIG. 7 is a flow chart of another embodiment of a data transmission method of the present application;
FIG. 8 is a flow chart of another embodiment of a data transmission method of the present application;
FIG. 9 is a flow chart of another embodiment of the data transmission method of the present application;
FIG. 10 is a flow chart of another embodiment of the data transmission method of the present application;
FIG. 11 is a flow chart of another embodiment of the data transmission method of the present application;
FIG. 12 is a flow chart of another embodiment of the data transmission method of the present application;
FIG. 13 is a flow chart of another embodiment of a method for data transmission according to the present application;
FIG. 14 is a schematic structural diagram of an embodiment of a data transmission apparatus according to the present application;
FIG. 15 is a schematic structural diagram of a data transmission device according to another embodiment of the present application;
fig. 16 is a schematic structural diagram of another embodiment of the data transmission device according to the present application.
Detailed Description
The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.
Taking the network side device as an example of a base station, when the electronic device randomly accesses the base station, the base station indicates, in a high-layer signaling sent by the electronic device, a mapping relationship between a Synchronization Signal Block (SSB) and a random access Channel opportunity (RACH interference, RO) or a mapping relationship between a Channel State Information Reference Signal (CSI-RS) and ROs for the electronic device, where the mapping relationship may be one-to-many, one-to-one, or many-to-one, and if the mapping relationship is one-to-many, the electronic device selects one RO from a plurality of ROs and sends a preamble (preamble) on the RO, but if the transmission of the preamble fails, the electronic device needs to increase transmission power to re-send the preamble on the RO until the access succeeds. The efficiency of accessing the electronic device to the base station is low. The SSBs may also be referred to as Synchronization Signal/Physical Broadcast Channel blocks (SS/PBCH blocks). Specifically, 1 RO resource corresponds to a set of time-frequency resources, which can be used for transmitting a Physical Random Access Channel (PRACH) or a preamble.
Therefore, the application provides a data transmission method, a data transmission device and electronic equipment, which can improve the efficiency of accessing the electronic equipment to network side equipment in the random access process.
Wireless communication systems to which the present application may be applied may include, but are not limited to: new Radio (NR) systems. The electronic devices described herein may include, but are not limited to: handheld devices, vehicle-mounted devices, wearable devices, etc. having wireless communication functions. The network side device described in this application may be a base station, and in different communication systems, implementation types of the base station may have differences, and the application is not limited thereto, for example, in an NR communication system, the network side device may be a next generation base station (gNB).
Fig. 1 is an example of a system structure to which the data transmission method of the present application is applied, including: electronic device 110 and network-side device 120.
Fig. 2 is a flowchart of an embodiment of the data transmission method, in which the execution subject of the method is the electronic device described above as an example. As shown in fig. 2, the method may include:
step 201: the electronic equipment receives a first signaling, wherein the first signaling comprises: mapping relation of reference signal and RO.
The reference signal may be an SSB or a CSI-RS.
The first signaling may be a higher layer signaling sent by the network side device to the electronic device, for example, a Radio Resource Control (RRC) message.
Step 202: if the mapping relation between the reference signal and the RO is 1 to n, the electronic device respectively sends the lead codes on M ROs, wherein n is a natural number larger than 1, M is more than or equal to 2 and less than or equal to n, and M is a natural number.
The M ROs in this step are ROs associated with a first reference signal, and the first reference signal is a reference signal obtained by the electronic device based on beam detection, and is generally a reference signal of an optimal beam obtained by beam detection.
The electronic device sends the preambles on M ROs, respectively, so that the probability that the network side device receives the preambles can be increased, and the random access efficiency is improved.
In this step, the preamble may be carried by the PRACH.
Take the case where the reference signal is SSB. The mapping relationship between the SSB and the RO indicated by the network side device to the electronic device may be: 1 to many, 1 to 1, or many to 1. The network side device may configure N SSBs to associate with one RO through high-layer signaling. If the value of N is less than 1, it indicates that 1 SSB is associated with multiple ROs, for example, the value of N may generally be 1/8, 1/4, or 1/2, which respectively indicates that 1 SSB is associated with 8 ROs, 4 ROs, or 2 ROs.
It should be noted that the value N may be 1, which indicates that 1 SSB is associated with 1 RO, or the value N may be greater than 1, for example, 2, 4, 8, 16, etc., which respectively indicate that 2, 4, 8, or 16 SSBs are associated with 1 RO, and how the electronic device processes when the value N is greater than or equal to 1 is not limited in the embodiment of the present application.
The above example can also be applied to the case that the reference signal is a CSI-RS, that is, the SSB in the above example is replaced by the CSI-RS, and the example still applies.
In this step, when a preamble is transmitted on each of the M ROs, the preamble may be transmitted on the M ROs by a beam scanning (beam scanning) method or a beam repetition (beam repetition) method. Wherein, the beam scanning refers to that the spatial domain filter (spatial domain filter) parameters of the PRACH sent by different ROs are different; the beam repetition refers to the spatial domain filtering (spatial domain filter) parameters of the PRACH transmitted by different ROs. As an example, the network side device may configure, through high-level signaling, the electronic device to specifically perform preamble transmission in a beam scanning or beam repeating manner; alternatively, it may be preset in the electronic device whether to perform preamble transmission in a beam scanning or beam repeating manner.
In this step, the electronic device selects the preamble, which is not limited in this application.
In the prior art, if the mapping relationship between the reference signals and the ROs indicated by the network side device to the electronic device is 1 to many, that is, 1 reference signal is associated with a plurality of ROs, the electronic device only sends the preamble on one of the ROs, and if the network side device fails to receive the preamble on the RO, the electronic device needs to retransmit the preamble, thereby causing low random access efficiency of the electronic device; in the data transmission method, the lead codes are sent on at least 2 ROs, so that the probability of receiving the lead codes by the network side equipment is improved, the possibility of successful access of the electronic equipment is improved, and the random access efficiency of the electronic equipment is also improved.
In a possible implementation manner, if the electronic devices have different types, in order to enable the network side device to distinguish the types of the electronic devices, referring to fig. 3, step 202 may be implemented by the following steps 301 to 303:
step 301: if the mapping relation between the reference signal and the RO is 1 to n, the electronic equipment acquires the RO corresponding to the first type according to the preset corresponding relation between the type of the electronic equipment and the RO; the first type is a type of electronic device.
The RO lists corresponding to different electronic device types may be preset in the network side device and the electronic device, respectively.
Type division of electronic devices embodiments of the present application are not limited. In a possible implementation manner, in order to enable the network-side device to be compatible with the electronic device in the prior art, the types of the electronic device of the data transmission method in the present application may be divided into: for example, the enhanced electronic device may be an electronic device capable of executing the data transmission method of the present application, and the general device is an electronic device that does not execute the data transmission method of the present application, then the enhanced electronic device and the network-side device may respectively preset: a RO list corresponding to the enhanced electronic device, and a RO list corresponding to the normal device. In another possible implementation, the enhanced electronic device may refer to an electronic device with coverage enhancement capability introduced in 3rd Generation Partnership Project (3 GPP) release 17(release 17), and the normal device is an electronic device that does not support the coverage enhancement capability.
Step 302: the electronic device selects M ROs corresponding to the first type from the ROs corresponding to the first reference signal.
Optionally, the electronic device may select M ROs corresponding to the first type from the ROs associated with the first reference signal, to obtain M ROs in this step.
Step 303: the electronic device transmits preambles on the selected M ROs, respectively.
In the method shown in fig. 3, RO lists corresponding to different electronic device types are preset in the network-side device and the electronic device, and the electronic device selects M ROs from the RO list corresponding to its own type to transmit the preamble, so that the network-side device can determine the type of the electronic device according to the RO received by itself from the electronic device preamble, thereby enabling the electronic device to indicate its own type to the network-side device.
It should be noted that, the above steps 301 to 303 may also be taken as separate embodiments, and in this case, the value of M in step 303 may be a natural number. That is, the method may be used not only to implement differentiation of electronic device types in a scenario in which preambles are transmitted on a plurality of ROs, but also to implement differentiation of electronic device types in a scenario in which preambles are transmitted on a single RO.
In another possible implementation manner, the electronic device indicates the type of itself to the network side device through the transmitted preamble, and referring to fig. 4, step 202 may be implemented by the following steps 401 to 403:
step 401: the electronic equipment acquires the lead code corresponding to the first type according to the preset corresponding relation between the type of the electronic equipment and the lead code.
The RO lists corresponding to different electronic device types may be preset in the network side device and the electronic device, respectively.
Type division of electronic devices embodiments of the present application are not limited. For examples of the type of the electronic device, reference may be made to the example in step 301, which is not described herein again.
Step 402: the electronic device selects a preamble from the preambles corresponding to the first type.
In one possible implementation, the electronic device may randomly select a preamble from the first type of corresponding preamble.
Step 403: the selected preambles are transmitted on the M ROs, respectively.
In this step, the corresponding description in step 202 may be referred to for selection of M ROs, which is not described herein.
In the method shown in fig. 4, preamble lists corresponding to different electronic device types are preset in the network side device and the electronic device, and the electronic device selects a preamble from the preamble list corresponding to its own type and sends the preamble to the network side device, so that the network side device can determine the type of the electronic device according to the received preamble, thereby enabling the electronic device to indicate its own type to the network side device.
It should be noted that, the above steps 401 to 403 may also be taken as separate embodiments, and in this case, the step 403 may be replaced by: and transmitting the selected preamble on the RO determined by the electronic device. The number of ROs determined by the electronic device in this step may be one or more, and the application is not limited in this respect. At this time, the method may be used not only to implement differentiation of electronic device types in a scenario in which preambles are transmitted on a plurality of ROs, but also to implement differentiation of electronic device types in a scenario in which preambles are transmitted on a single RO.
In yet another possible implementation manner, for a 2-step Random Access Channel (RACH) flow, the type of the electronic device may be indicated by carrying information displayed in the PUSCH of the message.a; or an implicit indication by a different PUSCH Opportunity (PO) resource. The implementation manner may be combined with other embodiments of the present application to indicate the type of the electronic device to the network side device, or may be used as a separate embodiment to be used in a scenario where the type of the electronic device needs to be indicated.
Referring to fig. 5, after step 202 of the embodiment shown in fig. 2 to 4, the following steps 501 to 502 may be further included:
step 501: the electronic equipment calculates a first monitoring window according to the time domain information of at least one RO of the M ROs, and the first monitoring window is used for indicating a time period for monitoring the first feedback information.
The first feedback information is feedback information of the network side device for the received preamble.
The downlink transmission resource for transmitting the first feedback information may be scheduled by the network side device through downlink scheduling information.
Alternatively, the Downlink scheduling Information may be Downlink Control Information (DCI) or a PDCCH.
Optionally, the first feedback information may be a Random Access Response (RAR) message or a scheduled Physical Downlink Shared Channel (PDSCH).
In one possible implementation manner, one RO of the M ROs may be predefined as a reference RO, and the first listening window may be calculated according to time domain information of the reference RO and the first time duration. Optionally, the reference RO may be an RO with a smallest RO index number in the M ROs, or an RO with a largest RO index number in the M ROs, or an RO with an earliest time domain in the M ROs, or an RO with a latest time domain in the M ROs, or an RO with a highest frequency point in the M ROs in the frequency domain, or an RO with a lowest frequency point in the M ROs in the frequency domain. Specifically, the electronic device may use the transmission time of the last symbol of the reference RO, or the transmission time of the last symbol plus 1, or the time slot in which the last symbol is located plus 1 as the start time, and use a preset first time length as a time length to calculate the first listening window. Wherein, the first duration may be configured by the network side device through higher layer signaling, for example, RRC signaling.
In another possible implementation manner, the electronic device may calculate, according to the time domain information of each RO of the M ROs and a preset second duration, a listening window corresponding to each RO, respectively, to obtain a first listening window. Specifically, for each RO of the M ROs, the electronic device may use a transmission time of a last symbol of the RO, or a sum of the transmission time of the last symbol and 1, or a time slot where the last symbol is located, or a sum of the time slot where the last symbol is located and 1 as a start time, use a preset second time length as a time length, calculate a monitoring window corresponding to the RO, and then form the first monitoring window by the monitoring windows of the M ROs. The second duration corresponding to each RO may be configured by the network side device through a higher layer signaling, for example, an RRC signaling, and the second durations corresponding to each RO may be the same or different, which is not limited in this application.
Step 502: the electronic equipment monitors the first feedback information in the first monitoring window and determines whether the first feedback information is successfully received.
The method shown in fig. 5 further solves the problem of how the electronic device determines the listening window of the first feedback information in the case where the electronic device transmits the preamble on the plurality of ROs in the methods shown in fig. 2 to 4.
It should be noted that, the above steps 501 to 502 may also be taken as a separate embodiment to solve the problem of how the electronic device determines the listening window of the first feedback information when the electronic device sends the preambles on multiple ROs.
The process of sending the first feedback information by the network side device may include: a network side device sends downlink scheduling information to an electronic device on a PDCCH (physical downlink control channel) to schedule downlink transmission resources on the PDSCH to transmit feedback information, wherein Cyclic Redundancy Check (CRC) of the downlink control information on the PDCCH can be scrambled by random access-radio network temporary identity (RA-RNTI); and sending the feedback information on the downlink transmission resource indicated by the downlink scheduling information. Correspondingly, the electronic device may monitor the downlink scheduling information first, perform descrambling and verification on the downlink scheduling information using the corresponding RA-RNTI after receiving the downlink scheduling information, and receive the first feedback information on the downlink transmission resource indicated by the downlink scheduling information if the verification is successful. Based on this, referring to fig. 6, step 502 in fig. 5 can be implemented by the following steps 601 to 603:
step 601: the electronic device monitors the downlink scheduling information in the first monitoring window, if the downlink scheduling information is received, step 602 is executed, and if the downlink scheduling information is not received, the first feedback information is not received.
It should be noted that, for the case that the monitoring window corresponding to each RO in the M ROs forms the first monitoring window in step 501, if the electronic device monitors the downlink scheduling information in the first monitoring window, only if the monitoring window corresponding to each RO in the M ROs does not successfully receive the downlink scheduling information, it is determined that the reception of the downlink scheduling information fails; or, if the electronic device monitors the first feedback information, for example, RAR, in the first listening window, it is considered that receiving the first feedback information fails only if the listening window corresponding to each RO of the M ROs fails to successfully receive the first feedback information.
Step 602: the electronic device uses the RA-RNTI to descramble and verify the received downlink scheduling information, if the verification is successful, step 603 is executed, and if the verification is unsuccessful, the first feedback information is failed to be received.
The electronic device may calculate the RA-RNTI between steps 202-602.
In one possible implementation: the designated RO may be preset, for example, the designated RO may be a first RO, a last RO, or other ROs in the M ROs, the network side device and the electronic device may respectively calculate an RA-RNTI corresponding to the designated RO, the network side device performs CRC scrambling on the downlink scheduling information using the RA-RNTI, and the electronic device performs descrambling and checking on the downlink scheduling information using the RA-RNTI.
In another possible implementation manner, the network side device may also select any one of multiple ROs performing preamble repeated transmission, and calculate an RA-RNTI corresponding to the RO; the network side equipment can scramble the CRC of the downlink scheduling information by using the RA-RNTI; and on the electronic equipment side, the electronic equipment calculates RA-RNTIs corresponding to each RO in M ROs, and sequentially uses the RA-RNTIs corresponding to each RO to perform descrambling and verification on the downlink scheduling information received on the PDCCH until one RA-RNTI is used for performing descrambling and verification successfully or each RA-RNTI is used for performing descrambling and verification unsuccessfully on the downlink scheduling information.
The RA-RNTI corresponding to each RO can be calculated using the following formula:
RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id
where s _ id is an index of a first OFDM symbol of the RO (0 ≦ s _ id < 14), t _ id is an index of a first slot of the RO in the system frame (0 ≦ t _ id < 80), f _ id is an index of the RO in the frequency domain (0 ≦ f _ id < 8), UL _ carrier _ id is an Uplink (UL) carrier for preamble transmission (0 denotes a normal uplink carrier, and 1 denotes a Supplemental Uplink (SUL) carrier).
Step 603: the electronic equipment receives first feedback information on downlink transmission resources indicated by the downlink scheduling information in a first time window, if the first feedback information is received in the first time window, the first feedback information is successfully received, and if the first feedback information is not received in the first time window, the first feedback information is unsuccessfully received.
In this embodiment, the electronic device specifically performs what processing is performed after the first feedback information is successfully or unsuccessfully received, and this embodiment of the application is not limited.
The method shown in fig. 6 further provides a possible implementation manner of step 502 in the method shown in fig. 5, and provides a method for scrambling, descrambling and checking downlink scheduling information.
It should be noted that the method for scrambling, descrambling and checking the downlink scheduling information described in step 602 may also be implemented as a single embodiment, so as to solve the problem of scrambling, descrambling and checking the downlink scheduling information related to the preamble in the scenario where the preambles are transmitted on multiple ROs.
Different from the method shown in fig. 5 and fig. 6, the first monitoring window is configured to monitor whether the first feedback information is successfully received, and in another embodiment of the present application, the first monitoring window may be configured to monitor whether the downlink scheduling information is successfully received, where:
in the method shown in fig. 5, the first feedback information may be directly replaced with downlink scheduling information;
in the method shown in fig. 6, step 603 does not need to be limited to receiving the first feedback information in the first listening window, and specifically, step 603 may be modified as follows: the electronic equipment receives first feedback information on downlink transmission resources indicated by the downlink scheduling information, if the first feedback information is received, the first feedback information is successfully received, and if the first feedback information is not received, the first feedback information is failed to be received.
Referring to fig. 7, in another embodiment provided in the present application, in fig. 6, in case that the first feedback information fails to be received, the following step 701 may be performed, specifically:
step 701: the electronic device calculates the transmission power used by the M ROs to resend the preamble, sends preambles on the M ROs respectively according to the calculated transmission power, and returns to step 501.
In this step, the transmission power of each RO calculated by the electronic device is greater than the transmission power of the preamble sent by the RO last time, that is, the transmission power of the preamble sent by the RO in step 202. The transmission power corresponding to each RO in the M ROs may be the same or different, and the application is not limited in this application. To improve the efficiency of the electronic device in calculating the transmission power, the transmission power corresponding to the M ROs may be the same.
Each time the first feedback information reception fails in step 602, the electronic device may adjust the power of the next transmission of the preamble on M ROs. Specifically, the transmission power of the preambles of the M ROs may be increased by one power level upwards until the maximum allowed transmission power is reached. The power difference between the power levels can be realized by means of predefined in the electronic device or configuration of the network side device.
The method shown in fig. 7 further solves the transmit power configuration problem when retransmitting preambles on multiple ROs.
It should be noted that, as a separate embodiment, the step 701 may be applied to a scenario where the electronic device sends the preambles on multiple ROs for random access and the random access fails, and solve the problem of the transmit power configuration when the electronic device retransmits the preambles on the multiple ROs in the scenario.
Fig. 8 is a flowchart of another embodiment of the data transmission method of the present application, and as shown in fig. 8, the method may include:
step 801: the network side equipment sends a first signaling, wherein the first signaling comprises a mapping relation between a reference signal and an RO; if the mapping relation between the reference signal and the RO is 1 to n, the first signaling is used for instructing the electronic device to respectively transmit the preambles on M ROs, wherein the M ROs are the ROs associated with the first reference signal, the first reference signal is the reference signal determined by the electronic device based on beam detection, n is a natural number larger than 1, M is larger than or equal to 2 and smaller than or equal to n, and M is a natural number.
In one possible implementation, referring to fig. 9, step 801 may further include the following steps:
step 901: the method comprises the steps that network side equipment receives a lead code sent by electronic equipment on an RO;
step 902: the network side equipment calculates RA-RNTI corresponding to the designated RO; designating the RO as one of ROs that received the preamble;
step 903: the network side equipment scrambles downlink scheduling information by using the RA-RNTI, and the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information;
the scrambling in this step may be CRC scrambling.
Step 904: and the network side equipment sends the downlink scheduling information to the electronic equipment, and transmits the first feedback information on the downlink transmission resource indicated by the downlink scheduling information.
In another possible implementation manner, as shown in fig. 10, step 801 may further include the following steps:
step 1001: the method comprises the steps that a network side device receives a lead code sent by an electronic device on an RO;
step 1002: the network side equipment selects one RO from the ROs receiving the lead code, and calculates RA-RNTI corresponding to the RO;
step 1003: the network side equipment scrambles downlink scheduling information by using the RA-RNTI, and the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information;
the scrambling in this step may be CRC scrambling.
Step 1004: and the network side equipment sends the downlink scheduling information to the electronic equipment, and transmits the first feedback information on the downlink transmission resource indicated by the downlink scheduling information.
In the methods shown in fig. 8 to 10, the network-side device may cooperate with the electronic device, so as to improve the efficiency of accessing the electronic device to the network-side device.
Fig. 11 shows a more specific example of the foregoing embodiment, taking the reference signal as SSB and the electronic device successfully receiving the feedback information as an example, as shown in fig. 11, the method may include:
step 1101: and the base station sends a first signaling, wherein the first signaling carries the mapping relation between the SSB and the RO.
Step 1102: the electronic device receives the first signaling, and if the mapping relationship between the SSB and the RO carried in the first signaling is 1 to n, the electronic device sends preambles on M ROs respectively, and then performs step 1103 and step 1104, respectively.
Step 1103: the electronic equipment calculates a first listening window and monitors downlink scheduling information in the first listening window; the electronic device calculates the verification information.
Step 1104: and the base station receives the lead code on the RO, calculates the RA-RNTI, uses the RA-RNTI to carry out CRC scrambling on the downlink scheduling information, and sends the downlink scheduling information to the electronic equipment.
Step 1105: the electronic device receives the downlink scheduling information in the first listening window, performs descrambling and checking on the downlink scheduling information by using the RA-RNTI calculated in step 1103, and receives the first feedback message on the downlink transmission resource indicated by the downlink scheduling information if the checking is passed.
Different from fig. 11, in the example shown in fig. 12, taking the case that the electronic device does not successfully check the downlink scheduling information, at this time, step 1105 is replaced with step 1201: the electronic device receives the downlink scheduling information in the first listening window, performs descrambling and verification on the downlink scheduling information by using the RA-RNTI calculated in step 1103, and if the verification fails, the electronic device increases the transmission power of the ROs and re-sends the preamble on the M ROs.
Different from fig. 11, in the example shown in fig. 13, taking the case that the electronic device does not receive the downlink scheduling information as an example, at this time, steps 1104 to 1105 are replaced with 1301: the electronic equipment does not receive the downlink scheduling information in the first listening window, increases the transmission power of the RO, and sends the lead codes on the M ROs again.
It is to be understood that some or all of the steps or operations in the above-described embodiments are merely examples, and other operations or variations of various operations may be performed by the embodiments of the present application. Further, the various steps may be performed in a different order presented in the above-described embodiments, and it is possible that not all of the operations in the above-described embodiments are performed.
Fig. 14 is a block diagram of an embodiment of a data transmission apparatus, which may be applied to an electronic device, and as shown in fig. 14, the apparatus 140 may include:
a receiving unit 141, configured to receive a first signaling, where the first signaling includes: mapping relation between the reference signal and the RO;
a transmitting unit 142, configured to transmit preambles on M ROs, respectively, if a mapping relationship between the reference signal and the RO is 1 to n, where the M ROs are ROs associated with a first reference signal, the first reference signal is a reference signal determined based on beam detection, n is a natural number greater than 1, 2 ≦ M ≦ n, and M is a natural number.
In one possible implementation, the reference signal is an SSB, or CSI-RS.
In a possible implementation manner, the sending unit 142 may specifically be configured to: transmitting the preamble in a beam scanning or beam repeating manner on the M ROs.
In a possible implementation manner, the sending unit 142 may specifically be configured to: acquiring an RO corresponding to the first type according to a preset corresponding relation between the type of the electronic equipment and the RO; selecting M ROs corresponding to the first type from the ROs associated with the first reference signal; transmitting the preambles on the selected M ROs, respectively.
In a possible implementation manner, the sending unit 142 may specifically be configured to: acquiring a lead code corresponding to the first type according to a preset corresponding relation between the type of the electronic equipment and the lead code; selecting a preamble from the preambles corresponding to the first type; transmitting the selected preambles on the M ROs, respectively.
In one possible implementation, referring to fig. 15, the apparatus 140 may further include:
a calculating unit 151, configured to calculate a first listening window according to time domain information of at least one RO of the M ROs, where the first listening window is used to indicate a time period for listening to downlink scheduling information; the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information; the first feedback information is feedback information for the preamble;
the receiving unit 141 may further be configured to: monitoring the downlink scheduling information in the first monitoring window;
alternatively, the apparatus 140 may further include:
a calculating unit 151, configured to calculate a first listening window according to time domain information of at least one RO of the M ROs; the first monitoring window is used for indicating a time period for monitoring first feedback information; the first feedback information is feedback information for the preamble;
the receiving unit 141 may further be configured to: and monitoring the first feedback information in the first monitoring window.
In a possible implementation manner, the computing unit 151 may specifically be configured to: and calculating the first listening window according to the time domain information of one designated RO in the M ROs and a preset first time length.
In a possible implementation manner, the computing unit 151 may specifically be configured to: and respectively calculating a monitoring window corresponding to each RO according to the time domain information of each RO in the M ROs and a preset second time length to obtain the first monitoring window.
In one possible implementation, the computing unit 151 may be further configured to: calculating RA-RNTI corresponding to the designated RO in the M ROs; if the downlink scheduling information is received in the first listening window, the RA-RNTI is used for verifying the downlink scheduling information;
the receiving unit 141 may further be configured to: and if the verification is successful, receiving first feedback information on the downlink transmission resource indicated by the downlink scheduling information.
In one possible implementation, the computing unit 151 may be further configured to: calculating RA-RNTI corresponding to each RO in the M ROs; if the downlink scheduling information is received in the first listening window, checking the downlink scheduling information by using RA-RNTIs corresponding to each RO in sequence;
the receiving unit 141 may further be configured to: and if the verification is successful, receiving first feedback information on the downlink transmission resource indicated by the downlink scheduling information.
In a possible implementation manner, the sending unit 142 may further be configured to: if the first feedback information is not successfully received in the first listening window, calculating the transmission power used by each RO for resending the lead code; the calculated transmission power of each RO is larger than the transmission power of the lead code sent by the RO at the previous time; retransmitting the preamble at each of the M ROs according to the calculated transmit power.
Fig. 16 is a block diagram of another embodiment of the data transmission device of the present application, and as shown in fig. 16, the device 160 may include:
a sending unit 161, configured to send a first signaling, where the first signaling includes a mapping relationship between a reference signal and an RO; if the mapping relation between the reference signal and the RO is 1 to n, the first signaling is used for instructing the electronic device to respectively send preambles on M ROs, wherein the M ROs are the ROs associated with the first reference signal, the first reference signal is the reference signal determined by the electronic device based on beam detection, n is a natural number greater than 1, M is greater than or equal to 2 and less than or equal to n, and M is a natural number.
In one possible implementation, the reference signal is an SSB, or CSI-RS.
In one possible implementation, the apparatus may further include:
a receiving unit, configured to receive a preamble sent by the electronic device on an RO;
a calculating unit, configured to calculate an RA-RNTI corresponding to the designated RO; the designated RO is one of the ROs that received the preamble; scrambling the downlink scheduling information by using the RA-RNTI; the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information; the first feedback information is feedback information of the preamble;
the sending unit 161 may further be configured to: and sending the downlink scheduling information to the electronic equipment.
In another possible implementation manner, the apparatus may further include:
a receiving unit, configured to receive a preamble sent by the electronic device on an RO;
a calculating unit, configured to select one RO from the ROs that have received the preamble, and calculate an RA-RNTI corresponding to the RO; scrambling downlink scheduling information by using the RA-RNTI; the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information; the first feedback information is feedback information of the preamble;
the sending unit 161 may further be configured to: and sending the downlink scheduling information to the electronic equipment.
The embodiments shown in fig. 14 to 16 provide apparatuses for implementing the technical solutions of the method embodiments shown in fig. 2 to 13 of the present application, and the implementation principles and technical effects thereof can be further referred to the related descriptions in the method embodiments.
It should be understood that the division of the modules of the apparatuses shown in fig. 14 to 16 is merely a logical division, and the actual implementation may be wholly or partially integrated into one physical entity or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling by the processing element in software, and part of the modules can be realized in the form of hardware. For example, the first receiving module may be a separate processing element, or may be implemented by being integrated into a chip of the electronic device. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. For example, the data transmission device may be a chip or a chip module, or the data transmission device may be a part of a chip or a chip module. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, these modules may be integrated together and implemented in the form of a System-On-a-Chip (SOC).
The application provides an electronic device, including: a processor and a transceiver; the processor and the transceiver cooperate to implement the method provided by the embodiments shown in fig. 2 to 13 of the present application.
The application provides a network side device, including: a processor and a transceiver; the processor and the transceiver cooperate to implement the method provided by the embodiments shown in fig. 2 to 13 of the present application.
The present application further provides an electronic device, where the device includes a storage medium and a central processing unit, the storage medium may be a non-volatile storage medium, a computer executable program is stored in the storage medium, and the central processing unit is connected to the non-volatile storage medium and executes the computer executable program to implement the method provided in the embodiment shown in fig. 2 to 13 of the present application.
An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute the method provided by the embodiment shown in fig. 2 to 13 of the present application.
Embodiments of the present application further provide a computer program product, which includes a computer program, when the computer program runs on a computer, the computer executes the method provided by the embodiments shown in fig. 2 to 13 of the present application.
In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.
Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, any function, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present application, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims (20)

1. A method of data transmission, comprising:
receiving a first signaling, wherein the first signaling comprises: mapping relation between reference signal and random access channel opportunity (RO);
if the mapping relation between the reference signal and the RO is 1 to n, respectively sending the preamble on M ROs, wherein the M ROs are the ROs associated with the first reference signal, the first reference signal is the reference signal determined based on beam detection, n is a natural number larger than 1, 2 is larger than or equal to M and is smaller than or equal to n, and M is a natural number.
2. The method of claim 1, wherein the reference signal is a Synchronization Signal Block (SSB) or a channel state information reference signal (CSI-RS).
3. The method of claim 1 or 2, wherein the sending the preambles on the M ROs respectively comprises:
transmitting the preamble in a beam scanning or beam repeating manner on the M ROs.
4. The method according to any of claims 1 to 3, wherein the sending the preambles on the M ROs respectively comprises:
acquiring an RO corresponding to the first type according to a preset corresponding relation between the type of the electronic equipment and the RO;
selecting M ROs corresponding to the first type from the ROs associated with the first reference signal;
transmitting the preambles on the selected M ROs, respectively.
5. The method according to any of claims 1 to 3, wherein the sending the preambles on the M ROs respectively comprises:
acquiring a lead code corresponding to the first type according to a preset corresponding relation between the type of the electronic equipment and the lead code;
selecting a preamble from the preambles corresponding to the first type;
transmitting the selected preambles on the M ROs, respectively.
6. The method of any of claims 1 to 5, further comprising:
calculating a first listening window according to the time domain information of at least one RO in the M ROs; the first monitoring window is used for indicating a time period for monitoring downlink scheduling information; the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information; the first feedback information is feedback information for the preamble; monitoring the downlink scheduling information in the first monitoring window; alternatively, the first and second electrodes may be,
calculating a first listening window according to the time domain information of at least one RO in the M ROs; the first monitoring window is used for indicating a time period for monitoring first feedback information; the first feedback information is feedback information for the preamble; and monitoring the first feedback information in the first monitoring window.
7. The method of claim 6, wherein said calculating a first listening window comprises:
and calculating the first listening window according to the time domain information of one designated RO in the M ROs and a preset first time length.
8. The method of claim 6, wherein said calculating a first listening window comprises:
and respectively calculating a monitoring window corresponding to each RO according to the time domain information of each RO in the M ROs and a preset second time length to obtain the first monitoring window.
9. The method of any of claims 6 to 8, further comprising:
calculating a random access radio network temporary identifier (RA-RNTI) corresponding to the designated RO in the M ROs;
if the downlink scheduling information is received in the first listening window, the RA-RNTI is used for checking the downlink scheduling information;
and if the verification is successful, receiving first feedback information on the downlink transmission resource indicated by the downlink scheduling information.
10. The method of any of claims 6 to 8, further comprising:
calculating RA-RNTI corresponding to each RO in the M ROs;
if the downlink scheduling information is received in the first listening window, sequentially using RA-RNTI corresponding to each RO to check the downlink scheduling information;
and if the verification is successful, receiving first feedback information on the downlink transmission resource indicated by the downlink scheduling information.
11. The method of any one of claims 6 to 10, further comprising:
if the first feedback information is not successfully received in the first listening window, calculating the transmission power used by each RO for resending the lead code; the calculated transmission power of each RO is larger than the transmission power of the lead code sent by the RO at the previous time;
retransmitting the preamble at each of the M ROs according to the calculated transmit power.
12. A method of data transmission, comprising:
sending a first signaling, wherein the first signaling comprises a mapping relation between a reference signal and a random access channel (RO); if the mapping relation between the reference signal and the RO is 1 to n, the first signaling is used for instructing the electronic device to respectively send preambles on M ROs, wherein the M ROs are the ROs associated with the first reference signal, the first reference signal is the reference signal determined by the electronic device based on beam detection, n is a natural number greater than 1, M is greater than or equal to 2 and less than or equal to n, and M is a natural number.
13. The method of claim 12, wherein the reference signal is a Synchronization Signal Block (SSB) or a channel state information reference signal (CSI-RS).
14. The method of claim 12 or 13, further comprising:
receiving a lead code sent by the electronic equipment on RO;
calculating a random access radio network temporary identification RA-RNTI corresponding to the designated RO; the designated RO is one of the ROs from which the preamble was received;
scrambling downlink scheduling information by using the RA-RNTI; the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information; the first feedback information is feedback information of the preamble;
and sending the downlink scheduling information to the electronic equipment.
15. The method of claim 12 or 13, further comprising:
receiving a lead code sent by the electronic equipment on RO;
selecting one RO from the ROs receiving the lead code, and calculating RA-RNTI corresponding to the RO;
scrambling downlink scheduling information by using the RA-RNTI; the downlink scheduling information is used for scheduling downlink transmission resources for transmitting the first feedback information; the first feedback information is feedback information of the preamble;
and sending the downlink scheduling information to the electronic equipment.
16. A data transmission apparatus, comprising:
a receiving unit, configured to receive a first signaling, where the first signaling includes: mapping relation between reference signal and random access channel opportunity (RO);
a transmitting unit, configured to transmit preambles on M ROs, respectively, if a mapping relationship between the reference signal and the ROs is 1 to n, where the M ROs are ROs associated with a first reference signal, the first reference signal is a reference signal determined based on beam detection, n is a natural number greater than 1, 2 ≦ M ≦ n, and M is a natural number.
17. A data transmission apparatus, comprising:
a sending unit, configured to send a first signaling, where the first signaling includes a mapping relationship between a reference signal and a random access channel (RO); if the mapping relation between the reference signal and the RO is 1 to n, the first signaling is used for instructing the electronic device to respectively send preambles on M ROs, wherein the M ROs are the ROs associated with the first reference signal, the first reference signal is the reference signal determined by the electronic device based on beam detection, n is a natural number greater than 1, M is greater than or equal to 2 and less than or equal to n, and M is a natural number.
18. An electronic device, comprising:
a transceiver configured to receive a first signaling, where the first signaling includes: mapping relation between reference signal and random access channel (RO); if the mapping relation between the reference signal and the RO is 1 to n, respectively sending preambles on M ROs, wherein the M ROs are ROs associated with a first reference signal, the first reference signal is a reference signal determined based on beam detection, n is a natural number larger than 1, M is larger than or equal to 2 and smaller than or equal to n, and M is a natural number.
19. A network-side device, comprising:
a transmitter, configured to transmit a first signaling, where the first signaling includes a mapping relationship between a reference signal and a random access channel opportunity (RO); if the mapping relation between the reference signal and the RO is 1 to n, the first signaling is used for instructing the electronic device to respectively send the preambles on M ROs, wherein the M ROs are associated with the first reference signal, the first reference signal is a reference signal determined by the electronic device based on beam detection, n is a natural number greater than 1, M is greater than or equal to 2 and less than or equal to n, and M is a natural number.
20. A computer-readable storage medium, in which a computer program is stored which, when run on a computer, causes the computer to carry out the method of any one of claims 1 to 15.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109076617A (en) * 2018-07-25 2018-12-21 北京小米移动软件有限公司 Accidental access method, device and the storage medium of MTC system
CN110636634A (en) * 2018-06-21 2019-12-31 维沃移动通信有限公司 Random access method and related equipment
CN111226487A (en) * 2019-05-31 2020-06-02 北京小米移动软件有限公司 Random access method and device, communication equipment and storage medium
CN111557119A (en) * 2020-03-09 2020-08-18 北京小米移动软件有限公司 Communication method and device, storage medium
CN111867133A (en) * 2019-04-26 2020-10-30 华为技术有限公司 Random access method, network equipment and terminal equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106686691B (en) * 2015-11-06 2019-11-08 电信科学技术研究院 A kind of random access response RAR transmission method and relevant device
CN117062227A (en) * 2016-11-04 2023-11-14 中兴通讯股份有限公司 Wireless communication method, apparatus, node, and computer-readable program storage medium
KR102429435B1 (en) * 2018-01-11 2022-08-04 삼성전자주식회사 Methods and apparatuses for determining and configuring a time-frequency resource in a random access process
CN111132326A (en) * 2018-11-01 2020-05-08 北京三星通信技术研究有限公司 Random access method, terminal device and computer storage medium

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110636634A (en) * 2018-06-21 2019-12-31 维沃移动通信有限公司 Random access method and related equipment
CN109076617A (en) * 2018-07-25 2018-12-21 北京小米移动软件有限公司 Accidental access method, device and the storage medium of MTC system
CN111867133A (en) * 2019-04-26 2020-10-30 华为技术有限公司 Random access method, network equipment and terminal equipment
CN111226487A (en) * 2019-05-31 2020-06-02 北京小米移动软件有限公司 Random access method and device, communication equipment and storage medium
CN111557119A (en) * 2020-03-09 2020-08-18 北京小米移动软件有限公司 Communication method and device, storage medium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "Discussion on multiple Msg.1 transmission procedure", 3GPP TSG RAN WG1 #96BIS R1-1904414, 29 March 2019 (2019-03-29), pages 2 *

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