WO2020200108A1 - 信息发送方法、终端及网络设备 - Google Patents

信息发送方法、终端及网络设备 Download PDF

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Publication number
WO2020200108A1
WO2020200108A1 PCT/CN2020/081735 CN2020081735W WO2020200108A1 WO 2020200108 A1 WO2020200108 A1 WO 2020200108A1 CN 2020081735 W CN2020081735 W CN 2020081735W WO 2020200108 A1 WO2020200108 A1 WO 2020200108A1
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WIPO (PCT)
Prior art keywords
terminal
preamble
pusch
preamble sequence
frequency
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Ceased
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PCT/CN2020/081735
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English (en)
French (fr)
Inventor
周伟
倪吉庆
左君
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China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
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China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
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Publication of WO2020200108A1 publication Critical patent/WO2020200108A1/zh
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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
    • 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
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present disclosure relates to the field of communication technology, in particular to an information sending method, terminal and network equipment.
  • CBRA Contention-based Random Access
  • the terminal sends an uplink signal containing a preamble sequence (Preamble) on the resources of a physical random access channel (PRACH, Physical Random Access Channel), called Msg1;
  • Preamble a preamble sequence
  • PRACH Physical Random Access Channel
  • the terminal receives the random access response (RAR, Random Access Response) sent by the network side, which is called Msg2;
  • the terminal sends uplink data on the uplink time-frequency resource indicated by the RAR, which is called Msg3;
  • the terminal receives the downlink data sent by the network side, and the downlink data contains contention resolution related information, which is called Msg4.
  • the NR R16 standard discusses introducing the 2-step RACH process, including:
  • 2-step RACH sends Msg1 and Msg3 in the original 4-step RACH in one step, which is called MsgA;
  • Msg2 and Msg4 are further merged into MsgB.
  • the PUSCH (Physical Uplink Shared Channel) time-frequency resource for transmitting Msg3 is indicated by Msg2, which is aimed at the same PRACH transmission opportunity (RACH occasion) and the same preamble is selected.
  • Msg2 Physical Uplink Shared Channel
  • RACH occasion PRACH transmission opportunity
  • Msg1 Physical Uplink Shared Channel
  • DMRS demodulation reference signal
  • the network side can distinguish them through time-frequency resource scheduling.
  • the network side needs to reserve time-frequency resources for PUSCH transmission in MsgA. If the original design is still used, the corresponding time-frequency resources are reserved for each preamble sequence, and only DMRS port 0 is used for the reserved resources, it will occupy too much system resources and reduce system efficiency. All time-frequency resources reserved by the group require RRC (Radio Resource Control) signaling to inform the terminal of the resource location, which greatly increases signaling overhead. If the same time-frequency resources are reserved for all terminals, the collision probability when sending MsgA between terminals will be greatly increased.
  • RRC Radio Resource Control
  • the present disclosure provides an information sending method, terminal and network equipment.
  • the time-frequency resources reserved for MsgA PUSCH transmission and the signaling overhead indicating the location of the time-frequency resources can be saved.
  • the embodiments of the present disclosure provide the following solutions:
  • An information sending method applied to a terminal, the method including:
  • obtaining at least one of the time-frequency resource for transmitting the physical uplink shared channel PUSCH and the demodulation reference signal DMRS port for transmitting the PUSCH according to the preamble sequence selected by the terminal and the configuration information includes:
  • the configuration information includes at least one of the following:
  • the total number of preamble sequences and preamble sequence parameters that the terminal can select the total number of preamble sequences and preamble sequence parameters that the terminal can select;
  • the number of DMRS ports for transmitting the PUSCH configured by the DMRS configuration information is at least two.
  • obtaining the preamble group in which the preamble sequence selected by the terminal is located includes:
  • the preamble sequences are divided into N groups;
  • the preamble group where the preamble sequence selected by the terminal is located is obtained.
  • obtaining the time-frequency resource of the physical uplink shared channel PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located includes:
  • the time-frequency resources for transmitting PUSCH configured in the configuration information are divided into multiple sub-resource blocks according to at least one of the frequency domain and the time domain, and one preamble group corresponds to one sub-resource block.
  • the configuration parameters for frequency hopping include: whether to enable frequency hopping and a frequency offset parameter; in the case of dividing sub-resource blocks according to the frequency domain, the configuration parameters for frequency hopping include parameters for disabling frequency hopping When the multiple sub-resource blocks are continuous in the time domain; when the sub-resource blocks are divided according to the frequency domain, when the configuration parameters of frequency hopping include the parameters to enable frequency hopping, each sub-resource block is divided in the time domain into At least two time domain resource blocks, the frequency domain position of the Nth time domain resource block in the at least two time domain resource blocks of the same sub-resource block is determined by the frequency domain of the N-1th time domain resource block The position and the frequency offset parameter are determined, and N is greater than or equal to 2.
  • the frequency offset parameter is a frequency range value or an index value of a time domain resource block.
  • obtaining the DMRS port corresponding to the preamble sequence selected by the terminal includes:
  • the DMRS port corresponding to the preamble sequence selected by the terminal is obtained.
  • the number of DMRS ports corresponding to each preamble group is at least one.
  • mapping relationship between the preamble sequence index and the DMRS port includes:
  • DMRS port number f (index of the preamble sequence, number of DMRS ports), f is a preset function.
  • f is a remainder function
  • the DMRS port number the index of the preamble sequence mod the number of DMRS ports.
  • sending the PUSCH includes: in the preamble group where the preamble sequence selected by the terminal is located, and on the corresponding time-frequency resource for sending the PUSCH, through the DMRS port corresponding to the preamble sequence selected by the terminal, Send the PUSCH.
  • the embodiment of the present disclosure also provides an information sending method applied to a network device, and the method includes:
  • the configuration information includes at least one of the following:
  • the total number of preamble sequences and preamble sequence parameters that the terminal can select the total number of preamble sequences and preamble sequence parameters that the terminal can select;
  • the embodiment of the present disclosure also provides a terminal, including:
  • the transceiver is used to receive the configuration information of the two-step random access process sent by the network device;
  • a processor configured to obtain at least one of a time-frequency resource for transmitting a physical uplink shared channel PUSCH and a demodulation reference signal DMRS port for transmitting the PUSCH according to the preamble sequence selected by the terminal and the configuration information;
  • the transceiver is also used to transmit the PUSCH.
  • the processor is specifically configured to: obtain a preamble group where the preamble sequence selected by the terminal is located according to the preamble sequence selected by the terminal and the configuration information;
  • the configuration information includes at least one of the following:
  • the total number of preamble sequences and preamble sequence parameters that the terminal can select the total number of preamble sequences and preamble sequence parameters that the terminal can select;
  • the number of DMRS ports for transmitting the PUSCH configured by the DMRS configuration information is at least two
  • obtaining the preamble group in which the preamble sequence selected by the terminal is located includes:
  • the preamble sequences are divided into N groups;
  • the preamble group where the preamble sequence selected by the terminal is located is obtained.
  • obtaining the time-frequency resource of the physical uplink shared channel PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located includes:
  • the configured time-frequency resource for transmitting PUSCH is divided into multiple sub-resource blocks according to at least one of the frequency domain and the time domain, and one preamble group corresponds to one sub-resource block.
  • the configuration parameters for frequency hopping include: whether to enable frequency hopping and a frequency offset parameter; in the case of dividing sub-resource blocks according to the frequency domain, the configuration parameters for frequency hopping include parameters for disabling frequency hopping When the multiple sub-resource blocks are continuous in the time domain; when the sub-resource blocks are divided according to the frequency domain, when the configuration parameters for frequency hopping include the parameters for enabling frequency hopping, each sub-resource block is divided into At least two time domain resource blocks, the frequency domain position of the Nth time domain resource block in the at least two time domain resource blocks of the same sub-resource block is determined by the frequency domain of the N-1th time domain resource block The position and the frequency offset parameter are determined, and N is greater than or equal to 2.
  • the frequency offset parameter is a frequency range value or an index value of a time domain resource block.
  • obtaining the DMRS port corresponding to the preamble sequence selected by the terminal includes:
  • the DMRS port corresponding to the preamble sequence selected by the terminal is obtained, and the DMRS port corresponding to the preamble sequence is: the DMRS port that sends the PUSCH.
  • the number of DMRS ports corresponding to each preamble group is at least one.
  • f is a remainder function
  • the DMRS port number the index of the preamble sequence mod the number of DMRS ports.
  • the transceiver is specifically configured to use the DMRS port corresponding to the preamble sequence selected by the terminal on the time-frequency resource for transmitting the PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located , Send the PUSCH.
  • the embodiment of the present disclosure also provides a network device, including:
  • the transceiver is used to send configuration information of the two-step random access process to the terminal; enable the terminal to obtain the time-frequency resource and transmit the physical uplink shared channel PUSCH according to the preamble sequence selected by the terminal and the configuration information At least one of the demodulation reference signal DMRS ports of the PUSCH;
  • the transceiver is also used to receive the PUSCH sent by the terminal.
  • the configuration information includes at least one of the following: time-frequency resources for sending preamble sequences; random access channel transmission opportunities, the total number of preamble sequences and preamble sequence parameters that can be selected by the terminal; preamble grouping parameters; transmission The time-frequency resources of the PUSCH; the configuration parameters of frequency hopping when the PUSCH is sent; and the uplink demodulation reference signal DMRS configuration information of the PUSCH is sent.
  • the embodiment of the present disclosure further provides a terminal, including a processor and a memory storing a computer program, and the computer program executes the method applied to the terminal as described above when the computer program is run by the processor.
  • the embodiment of the present disclosure also provides a communication device, including a processor and a memory storing a computer program, and the computer program executes the method applied to the communication device as described above when the computer program is run by the processor.
  • Embodiments of the present disclosure also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method described above.
  • the configuration information of the two-step random access process sent by the network device is received; according to the preamble sequence selected by the terminal and the configuration information, the time-frequency resource and transmission of the physical uplink shared channel PUSCH are obtained. At least one of the demodulation reference signal DMRS ports of the PUSCH; sending the PUSCH.
  • the time-frequency resources reserved for MsgA PUSCH transmission and the signaling overhead indicating the location of the time-frequency resources can be saved.
  • Figure 1 is a schematic flow diagram of a two-step random access process
  • FIG. 2 is a flowchart of the information sending method on the terminal side of the present disclosure
  • FIG. 3 is a schematic diagram of the division of sub-resource blocks in a specific implementation example of the present disclosure
  • FIG. 4 is a schematic diagram of the division of sub-resource blocks in another specific implementation example of the present disclosure.
  • FIG. 5 is a flowchart of the information sending method on the network device side of the present disclosure.
  • FIG. 6 is a schematic diagram of the architecture of the terminal of the present disclosure.
  • an embodiment of the present disclosure provides an information sending method applied to a terminal, and the method includes:
  • Step 21 Receive the configuration information of the two-step random access process sent by the network device;
  • the two-step random access process here includes as shown in Figure 1:
  • the terminal sends MsgA (including the preamble sequence and PUSCH selected by the terminal) to the network device.
  • the terminal receives the MsgB (random access response) feedback from the network device;
  • Step 22 Obtain at least one of the time-frequency resource for transmitting the physical uplink shared channel PUSCH and the demodulation reference signal DMRS port for transmitting the PUSCH according to the preamble sequence selected by the terminal and the configuration information;
  • Step 23 Send the PUSCH, where the PUSCH refers to the PUSCH in the MsgA.
  • This embodiment of the present disclosure may further include: receiving a random access response, that is, MsgB, sent by the network device.
  • the configuration information of the two-step random access process sent by the network device is received; according to the preamble sequence selected by the terminal and the configuration information, the time-frequency resource and transmission of the physical uplink shared channel PUSCH are obtained. At least one of the demodulation reference signal DMRS ports of the PUSCH; sending the PUSCH. It is no longer necessary to reserve time-frequency resources for sending PUSCH for each available preamble.
  • the terminal only needs to determine the time-frequency resources for sending PUSCH according to the selected preamble sequence and configuration information, saving the reserved time-frequency resources for PUSCH.
  • the foregoing step 22 may specifically include:
  • Step 221 Obtain the preamble group in which the preamble sequence selected by the terminal is located according to the preamble sequence selected by the terminal and the configuration information;
  • Step 222 Obtain at least one of the DMRS port corresponding to the preamble sequence selected by the terminal and the time-frequency resource for transmitting the PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located.
  • the time-frequency resource for transmitting the PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located can be obtained, or the DMRS port corresponding to the preamble sequence selected by the terminal can be obtained, or the terminal can be obtained
  • the preamble group where the selected preamble sequence is located corresponds to the time-frequency resource for transmitting the PUSCH and the DMRS port corresponding to the preamble sequence selected by the terminal.
  • the PUSCH when sending PUSCH, can be sent based on the time-frequency resource for sending the PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located, or the PUSCH can be sent based on the DMRS port corresponding to the preamble sequence selected by the terminal.
  • the PUSCH may be transmitted through the DMRS port corresponding to the preamble sequence selected by the terminal.
  • the DMRS port used may be a fixed DMRS port corresponding to the preamble sequence selected by the terminal, For example, DMRS port 0; it may also be a DMRS port selected from one or more DMRS ports corresponding to the preamble group where the preamble sequence selected by the terminal is located;
  • the time-frequency resource for sending the PUSCH may be the time-frequency resource reserved through high-level signaling, or the terminal based on the selected preamble sequence.
  • the preamble group corresponds to the time-frequency resource for transmitting the PUSCH;
  • the DMRS port corresponding to the preamble sequence selected by the terminal here is: one or more DMRS corresponding to the preamble group where the preamble sequence selected from the terminal is located Choose a DMRS port among the ports;
  • the frequency resource is determined based on the configuration information of the network device, and the DMRS port is also determined based on the configuration information of the network device.
  • the configuration information of the two-step random access process can be obtained by receiving high-level signaling of the network device.
  • the high-level signaling may be SIB (System Information Block) signaling, Cell-specific RRC (Radio Resource Control) signaling, or UE-specific RRC signaling.
  • SIB System Information Block
  • Cell-specific RRC Radio Resource Control
  • the configuration information includes at least one of the following:
  • the time-frequency resource for sending the preamble sequence (ie MsgA preamble), including the location and range of the time-frequency resource for sending the preamble sequence;
  • Parameters of preamble grouping for example, the number of groups, or the size of the group, that is, the number of preamble sequences in each group;
  • the time-frequency resource for sending the PUSCH including the location and range of the time-frequency resource for sending the PUSCH;
  • frequency hopping configuration parameters such as whether to enable frequency hopping parameters, frequency hopping offset values, etc.
  • the DMRS configuration information includes: the number of DMRS ports for sending the PUSCH, and the number of DMRS ports for sending the PUSCH is at least two; it may also include the following At least one item: DMRS configuration type; number of preamble DMRS symbols; whether additional DMRS (additional DMRS) is enabled.
  • step 221 may specifically include:
  • Step 2211 Divide the preamble sequences into N groups according to the total number of preamble sequences and the parameters of the preamble grouping;
  • Step 2212 Establish a mapping relationship between the preamble group and the index of the preamble sequence in the preamble group;
  • Step 2213 According to the index of the preamble sequence selected by the terminal, obtain the preamble group in which the preamble sequence selected by the terminal is located from the mapping relationship.
  • the terminal establishes the mapping relationship between the index of the preamble sequence and the index of the preamble group according to the total number of available preamble sequences and the parameters of the preamble group, and determines the preamble sequence contained in each preamble group The number of and sequence index.
  • Each preamble sequence belongs to only one preamble group, and a preamble group can contain one or more preamble sequences.
  • the index of the preamble sequence is 0-63; the number of divided preamble groups is 4;
  • each preamble group contains 16 preamble sequence indexes, that is, preamble group (group) #0 contains preamble sequences with indexes 0 to 15, and preamble group #1 contains preamble sequences with indexes 16 to 31.
  • the preamble group#2 contains the preamble sequence with indexes 32-47, and the preamble group#3 contains the preamble sequence with indexes 48-63.
  • the index number of the preamble sequence selected by the terminal is 17, and the preamble group of the preamble sequence selected by the terminal is group#1.
  • the listed parameters and values, signaling content, and composition form are only for illustration of the embodiments, and are not used to limit the scope of the above solution.
  • step 222 obtaining the time-frequency resource of the physical uplink shared channel PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located may include:
  • the configured time-frequency resource for transmitting PUSCH is divided into multiple sub-resource blocks according to at least one of the frequency domain and the time domain, and one preamble group corresponds to one sub-resource block.
  • the preamble group is divided into 4 groups, and the reserved time-frequency resource configured for PUSCH transmission in MsgA is divided into 4 sub-resource blocks equal in frequency domain; one preamble group corresponds to one sub-resource Piece.
  • the correspondence relationship between the preamble group and the sub-resource block may also be one-to-many or multiple-to-one.
  • the configuration parameters for frequency hopping include: whether to enable frequency hopping and a frequency offset parameter;
  • the frequency hopping configuration parameter includes a parameter that does not enable frequency hopping
  • multiple sub-resource blocks are continuous in the time domain
  • each sub-resource block is divided into at least two time-domain resource blocks in the time domain, and the same sub-resource block is The frequency domain position of the Nth time domain resource block in the at least two time domain resource blocks of the resource block is determined by the frequency domain position of the N-1th time domain resource block and the frequency offset parameter, such as ,
  • the frequency domain position of the Nth time domain resource block the frequency domain position of the N-1th time domain resource block+frequency offset parameter, and N is greater than or equal to 2.
  • the frequency offset parameter here is a frequency range value or an index value of a time domain resource block.
  • each sub-resource block is continuous in the time domain and continuous in the frequency domain.
  • each sub-resource block can be divided into two time domain resource blocks with the same time domain length.
  • it is not limited to being divided into two time domain resource blocks with the same time domain length. It can be divided into more than 2 time domain resource blocks with equal or unequal time domain length;
  • each sub-resource block hops on the Nth time domain resource block to the frequency domain start position of the N-1th time domain resource block or In the frequency domain range of the time domain resource block corresponding to the end position+offset, here, the frequency domain start position of the first time domain resource block is the same as the frequency domain start position of the sub-resource block.
  • the time-frequency resource used for sending PUSCH in MsgA is configured, and the terminal implicitly determines the time-frequency resource range for sending PUSCH according to the preamble sequence selected by itself (that is, the above-mentioned The sub-resource block or each time domain resource in the sub-resource block is divided into blocks), and the sub-resource block is part of the time-frequency resource for transmitting the PUSCH.
  • the RRC signaling sent by the network side only needs to indicate the location of the time-frequency resource for sending PUSCH, and there is no need to use signaling to indicate the location of the time-frequency resource of each sub-resource block, which reduces the signaling overhead, and at the same time, select the same The number of terminals of each sub-resource block is reduced, which reduces the collision probability of sending MsgA between terminals.
  • step 222 obtaining the DMRS port corresponding to the preamble sequence selected by the terminal includes:
  • Step 2221 Establish a mapping relationship between the preamble sequence index and the DMRS port in the preamble group where the preamble sequence selected by the terminal is located, and the number of DMRS ports corresponding to each preamble group is at least one;
  • Step 2222 According to the mapping relationship, obtain the DMRS port corresponding to the preamble sequence selected by the terminal.
  • the f may be a remainder function
  • the DMRS port number the index of the preamble sequence mod the number of DMRS ports.
  • f can also be other functions that comply with the DMRS port calculation rules.
  • the number of DMRS ports for sending PUSCH is 8;
  • the number of DMRS ports can be any value greater than 1 and less than or equal to the number of DMRS ports configured in the DMRS configuration parameters.
  • the terminal transmits the PUSCH in MsgA using DMRS port 4 on sub resource block #0.
  • preamble sequences that can be configured on the network equipment (such as base station) side, that is, the index of the preamble sequence is 0-63; the number of divided preamble groups is 4; PUSCH frequency hopping is disabled; the DMRS configuration type is type 1 , The number of pre-DMRS symbols is 2 (that is, the DMRS is located in the 2 OFDM symbols before the sub-resource block, where the position of the OFDM symbol occupied by the DMRS can be continuous with the sub-resource block in the time domain, or it can be discontinuous), disable additional DMRS (additional DMRS);
  • each preamble group contains the indexes of 16 preamble sequences, that is, the preamble group#0 contains the preamble sequences with indexes 0-15, and the preamble group#1 contains the preamble sequences with indexes 16-31.
  • the preamble group#2 contains the preamble sequence with indexes 32-47, and the preamble group#3 contains the preamble sequence with indexes 48-63;
  • the number of DMRS ports is 8;
  • the terminal establishes the mapping relationship between the index of the preamble sequence and the DMRS port according to the number of preamble sequence indexes contained in the preamble group and the total number of DMRS ports.
  • DMRS port number f (the number of the preamble sequence Index, DMRS port number).
  • the terminal selects a preamble sequence with an index of 4.
  • the terminal transmits the PUSCH in MsgA using DMRS port 4 on sub resource block #0.
  • the DMRS configuration type is type 1, the number of pre-DMRS symbols is 2, and additional DMRS is disabled;
  • each preamble group contains 16 preamble sequence indexes, that is, preamble group#0 contains preamble sequences with indexes 0-15, and preamble group#1 contains preamble sequences with indexes 16-31.
  • the preamble group#2 contains preamble sequences with indexes 32 to 47, and the preamble group#3 contains preamble sequences with indexes 48 to 63;
  • the number of DMRS ports is 8;
  • the terminal establishes the mapping relationship between the sequence index of the preamble and the DMRS port according to the number of preamble sequences contained in the preamble group and the number of configured DMRS ports.
  • DMRS port number f (index of the preamble sequence , DMRS port number).
  • the terminal transmits the PUSCH in MsgA using DMRS port 4 on sub resource block #0.
  • the last one or more symbols of the time-frequency resource of the PUSCH are blanked (that is, blank symbols in the figure), and used as a guard interval.
  • the number of blank symbols can be determined by a preamble format configured by a network device (such as a base station) or the network device (such as a base station) can be directly indicated in the random access configuration information.
  • the above-mentioned embodiments of the present disclosure implicitly select the time-frequency resource for sending PUSCH and the corresponding DMRS port, that is, determine the time-frequency resource for sending PUSCH according to the configuration information, avoiding additional signaling overhead; in the time-frequency resource used for MsgA PUSCH transmission
  • more than one DMRS port can be used, that is, there are more than two DMRS ports corresponding to the above sub-resource block.
  • the terminal determines the corresponding DMRS port according to the selected MsgA preamble sequence; and uses it on the determined sub-resource block
  • the determined DMRS port sends the PUSCH, which reduces the probability of terminal collision and improves system efficiency.
  • an embodiment of the present disclosure also provides an information sending method, which is applied to a network device, and the method includes:
  • Step 51 Send configuration information of the two-step random access process to the terminal; enable the terminal to obtain the time-frequency resource for sending the physical uplink shared channel PUSCH according to the preamble sequence selected by the terminal and the configuration information and send the At least one of the demodulation reference signal DMRS ports of the PUSCH;
  • Step 52 Receive the PUSCH sent by the terminal.
  • the configuration information includes at least one of the following: time-frequency resources for sending preamble sequences; random access channel transmission opportunities, the total number of preamble sequences and preamble sequence parameters that can be selected by the terminal; preamble grouping parameters; transmission The time-frequency resource of the PUSCH; the configuration parameters of frequency hopping when the PUSCH is sent; and the configuration information of the uplink demodulation reference signal DMRS when the PUSCH is sent.
  • an embodiment of the present disclosure further provides a terminal 60, including:
  • the transceiver 61 is configured to receive configuration information of a two-step random access process sent by a network device;
  • the processor 62 is configured to obtain at least one of a time-frequency resource for transmitting a physical uplink shared channel PUSCH and a demodulation reference signal DMRS port for transmitting the PUSCH according to the preamble sequence selected by the terminal and the configuration information;
  • the transceiver 61 is also used to transmit the PUSCH.
  • the processor 62 is specifically configured to: obtain the preamble group where the preamble sequence selected by the terminal is located according to the preamble sequence selected by the terminal and the configuration information; the DMRS port corresponding to the preamble sequence selected by the terminal and At least one item of time-frequency resources for transmitting the PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located.
  • the configuration information includes at least one of the following: time-frequency resources for sending the preamble sequence; random access channel transmission opportunities, the total number of preamble sequences and preamble sequence parameters that the terminal can select; the parameters of the preamble grouping; The time-frequency resources of the PUSCH; the configuration parameters of frequency hopping when the PUSCH is sent; the uplink demodulation reference signal DMRS configuration information of the PUSCH is sent, and the number of DMRS ports configured by the DMRS configuration information is at least two .
  • obtaining the preamble group in which the preamble sequence selected by the terminal is located includes:
  • the preamble sequences are divided into N groups;
  • the preamble group where the preamble sequence selected by the terminal is located is obtained.
  • obtaining the time-frequency resource of the physical uplink shared channel PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located includes: according to the number of preamble groups, the configured time-frequency resource for sending PUSCH is based on frequency domain and time domain At least one item in is divided into multiple sub-resource blocks, and one preamble group corresponds to one sub-resource block.
  • the configuration parameters for frequency hopping include: whether to enable frequency hopping and a frequency offset parameter; in the case of dividing sub-resource blocks according to the frequency domain, the configuration parameters for frequency hopping include parameters for disabling frequency hopping When the multiple sub-resource blocks are continuous in the time domain; when the sub-resource blocks are divided according to the frequency domain, when the configuration parameters of frequency hopping include the parameters to enable frequency hopping, each sub-resource block is divided in the time domain into At least two time domain resource blocks, the frequency domain position of the Nth time domain resource block in the at least two time domain resource blocks of the same sub-resource block is determined by the frequency domain of the N-1th time domain resource block The position and the frequency offset parameter are determined, and N is greater than or equal to 2.
  • the frequency offset parameter is a frequency range value or an index value of a time domain resource block.
  • obtaining the DMRS port corresponding to the preamble sequence selected by the terminal includes: establishing the preamble in the preamble group according to the number of preamble sequences included in the preamble group and the number of DMRS ports configured by the DMRS configuration information The mapping relationship between code sequence index and DMRS port;
  • the DMRS port corresponding to the preamble sequence selected by the terminal is obtained.
  • the number of DMRS ports corresponding to each preamble group is at least one.
  • f is a remainder function
  • the DMRS port number the index of the preamble sequence mod the number of DMRS ports.
  • the transceiver is specifically configured to use the DMRS port corresponding to the preamble sequence selected by the terminal on the time-frequency resource for transmitting the PUSCH corresponding to the preamble group where the preamble sequence selected by the terminal is located , Send the PUSCH.
  • the terminal is a terminal corresponding to the above-mentioned method on the terminal side, and all implementation manners in the above-mentioned method embodiment are applicable to this embodiment, and the same technical effect can also be achieved.
  • the terminal may further include: a memory 63; the transceiver 61 and the processor 62, as well as the transceiver 61 and the memory 63, can be connected via a bus interface.
  • the function of the transceiver 61 can be implemented by the processor 62.
  • the function of 62 can also be realized by the transceiver 61.
  • the embodiment of the present disclosure also provides a network device, including:
  • the transceiver is used to send configuration information of the two-step random access process to the terminal; enable the terminal to obtain the time-frequency resource and transmit the physical uplink shared channel PUSCH according to the preamble sequence selected by the terminal and the configuration information At least one of the demodulation reference signal DMRS ports of the PUSCH;
  • the transceiver is also used to receive the PUSCH sent by the terminal.
  • the configuration information includes at least one of the following: time-frequency resources for sending preamble sequences; random access channel transmission opportunities, the total number of preamble sequences and preamble sequence parameters that can be selected by the terminal; preamble grouping parameters; transmission The time-frequency resource of the PUSCH; the configuration parameters of frequency hopping when the PUSCH is sent; and the configuration information of the uplink demodulation reference signal DMRS when the PUSCH is sent.
  • the network device is a network device corresponding to the method on the network device side described above, and all implementation manners in the above method embodiments are applicable to this embodiment, and the same technical effects can also be achieved.
  • the network device may further include: a processor, a memory; the transceiver and the processor, and between the transceiver and the memory, can be connected through a bus interface, the function of the transceiver can be realized by the processor, and the function of the processor is also Can be realized by the transceiver.
  • An embodiment of the present disclosure also provides a communication device, including a processor and a memory storing a computer program, and when the computer program is run by the processor, the method described above is executed.
  • the communication device is a terminal
  • the method on the terminal side is executed;
  • the communication device is a network device, the method on the network device side is executed.
  • the embodiments of the present disclosure also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute a method on the terminal side or the network device side.
  • the above-mentioned embodiments of the present disclosure implicitly select the time-frequency resource for sending PUSCH and the corresponding DMRS port, that is, determine the time-frequency resource for sending PUSCH according to the configuration information, avoiding additional signaling overhead; In terms of resources, more than one DMRS port can be used.
  • the terminal determines the corresponding DMRS port according to the selected MsgA preamble sequence; and uses the determined DMRS port to transmit PUSCH on the determined sub-resource block, reducing the probability of terminal collision and improving System efficiency.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present disclosure essentially or the part that contributes to the related technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several
  • the instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • each component or each step can be decomposed and/or recombined.
  • decomposition and/or recombination should be regarded as equivalent solutions of the present disclosure.
  • the steps of performing the above series of processing can naturally be performed in a time sequence in the order of description, but do not necessarily need to be performed in a time sequence, and some steps can be performed in parallel or independently of each other.
  • the purpose of the present disclosure can also be realized by running a program or a group of programs on any computing device.
  • the computing device may be a well-known general-purpose device. Therefore, the purpose of the present disclosure can also be achieved only by providing a program product containing program code for implementing the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
  • the storage medium may be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that, in the device and method of the present disclosure, obviously, each component or each step can be decomposed and/or recombined.
  • the embodiments described in the embodiments of the present disclosure can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • units, modules, sub-units and sub-modules can be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (Digital Signal Processing, DSP), and digital signal processing equipment (DSP Device).
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSP Device digital signal processing equipment
  • DSPD Digital Signal Processing
  • PLD Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • general-purpose processors controllers, microcontrollers, microprocessors, and Disclosure of the described functions in other electronic units or combinations thereof.
  • the technology described in the embodiments of the present disclosure can be implemented through modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.

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Abstract

本公开的实施例提供一种信息发送方法、终端及网络设备，所述方法包括：接收网络设备发送的两步随机接入过程的配置信息；根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；发送所述PUSCH。

Description

信息发送方法、终端及网络设备
相关申请的交叉引用
本申请主张在2019年3月29日在中国提交的中国专利申请No.201910252554.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，特别是指一种信息发送方法、终端及网络设备。
背景技术
在相关技术中的NR R15标准中，终端发起基于竞争的随机接入(CBRA，Contention-based Random Access)的流程大致如下：
1)终端在物理随机接入信道(PRACH，Physical Random Access Channel)的资源上发送包含前导码序列(Preamble)的上行信号，称为Msg1；
2)终端接收网络侧发送的随机接入响应(RAR，Random Access Response)，称为Msg2；
3)终端在RAR指示的上行时频资源上发送上行数据，称为Msg3；
4)终端接收网络侧发送的下行数据，该下行数据包含竞争解决相关信息，称为Msg4。
上述流程称之为4-step RACH(四步随机接入)。
如图1所示。为了降低随机接入时延，NR R16标准中讨论引入2-step RACH流程，包括：
2-step RACH将原4-step RACH中的Msg1和Msg3集中在一步发送，称为MsgA；
Msg2和Msg4则进一步合并为MsgB。
基于原4-step RACH流程，传输Msg3的PUSCH(物理上行共享信道)时频资源是通过Msg2指示的，针对的是在同一个PRACH传输机会(RACH occasion)上并且选择了同一个preamble(前导码)序列来发送Msg1的一组 终端。该组终端在该时频资源上默认采用解调参考信号(DMRS)端口0进行传输。
对于选择了不同前导码序列或者不同PRACH传输机会的其他终端，网络侧可以通过时频资源调度进行区分。
但在2-step RACH流程中，网络侧需要预留用于MsgA中PUSCH发送的时频资源。如果依然采用原有设计，为每个前导码序列都预留对应的时频资源，且在预留资源上仅仅使用DMRS端口0，则会占用过多的系统资源，降低系统效率，而且每一组预留时频资源都需要RRC(无线资源控制)信令告知终端资源位置，大大增加信令开销。如果为所有终端预留相同的时频资源，则会大大增加终端之间发送MsgA时的碰撞概率。
发明内容
本公开提供了一种信息发送方法、终端及网络设备。可以节省预留用于MsgA PUSCH发送的时频资源以及指示所述时频资源位置的信令开销。
为解决上述技术问题，本公开的实施例提供如下方案：
一种信息发送方法，应用于终端，所述方法包括：
接收网络设备发送的两步随机接入过程的配置信息；
根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
发送所述PUSCH。
其中，根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项，包括：
根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组；
获得终端选择的前导码序列对应的DMRS端口和所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源中的至少一项。
其中，所述配置信息包括以下至少一项：
发送前导码序列的时频资源；
随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；
前导码分组的参数；
发送所述PUSCH的时频资源；
发送所述PUSCH时，跳频的配置参数；
发送所述PUSCH的上行解调参考信号DMRS配置信息。
其中，所述DMRS配置信息配置的发送所述PUSCH的DMRS端口数为至少两个。
其中，根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组，包括：
根据前导码序列的总数和前导码分组的参数，将前导码序列分为N个组；
建立前导码组与所述前导码组内前导码序列的索引之间的映射关系；
根据终端选择的前导码序列的索引，从所述映射关系中，获得终端选择的前导码序列所在的前导码组。
其中，获得终端选择的前导码序列所在的前导码组对应的物理上行共享信道PUSCH的时频资源，包括：
根据前导码组数，将所述配置信息中配置的发送PUSCH的时频资源，按照频域和时域中的至少一项，划分为多个子资源块，一个前导码组对应一个子资源块。
其中，所述跳频的配置参数包括：是否使能跳频的参数以及频率偏移参数；按照频域划分子资源块的情况下，所述跳频的配置参数包括不使能跳频的参数时，多个子资源块在时域上连续；按照频域划分子资源块的情况下，所述跳频的配置参数包括使能跳频的参数时，将每个子资源块在时域上划分为至少两个时域资源分块，同一子资源块的所述至少两个时域资源分块中第N时域资源分块的频域位置由第N-1个时域资源分块的频域位置和所述频率偏移参数确定，N大于或者等于2。
其中，所述频率偏移参数为一频率范围值或者时域资源分块的索引值。
其中，获得终端选择的前导码序列对应的DMRS端口，包括：
建立所述终端选择的前导码序列所在的前导码组中前导码序列索引和DMRS端口之间的映射关系；
根据所述映射关系，获得终端选择的前导码序列对应的DMRS端口。
其中，每一前导码组对应的所述DMRS端口数为至少一个。
其中，所述前导码序列索引和DMRS端口之间的映射关系包括：
DMRS端口号＝f(前导码序列的索引，DMRS端口数)，f为预设函数。
其中，所述f为求余函数，所述DMRS端口号＝所述前导码序列的索引mod所述DMRS端口数。
其中，发送所述PUSCH，包括：在所述终端选择的前导码序列所在的前导码组，对应的发送所述PUSCH的时频资源上，通过所述终端选择的前导码序列对应的DMRS端口，发送所述PUSCH。
本公开的实施例还提供一种信息发送方法，应用于网络设备，所述方法包括：
向终端发送两步随机接入过程的配置信息；使所述终端根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
接收所述终端发送的PUSCH。
其中，所述配置信息包括以下至少一项：
发送前导码序列的时频资源；
随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；
前导码分组的参数；
发送所述PUSCH的时频资源；
发送所述PUSCH时，跳频的配置参数；
发送所述PUSCH的上行解调参考信号DMRS配置信息。
本公开的实施例还提供一种终端，包括：
收发机，用于接收网络设备发送的两步随机接入过程的配置信息；
处理器，用于根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号 DMRS端口中的至少一项；
所述收发机还用于发送所述PUSCH。
其中，所述处理器具体用于：根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组；
获得终端选择的前导码序列对应的DMRS端口和所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源中的至少一项。
其中，所述配置信息包括以下至少一项：
发送前导码序列的时频资源；
随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；
前导码分组的参数；
发送所述PUSCH的时频资源；
发送所述PUSCH时，跳频的配置参数；
发送所述PUSCH的上行解调参考信号DMRS配置信息。
其中，所述DMRS配置信息配置的发送所述PUSCH的DMRS端口数为至少两个
其中，根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组，包括：
根据前导码序列的总数和前导码分组的参数，将前导码序列分为N个组；
建立前导码组与所述前导码组内前导码序列的索引之间的映射关系；
根据终端选择的前导码序列的索引，从所述映射关系中，获得终端选择的前导码序列所在的前导码组。
其中，获得终端选择的前导码序列所在的前导码组对应的物理上行共享信道PUSCH的时频资源，包括：
根据前导码组数，将配置的发送PUSCH的时频资源，按照频域和时域中的至少一项，划分为多个子资源块，一个前导码组对应一个子资源块。
其中，所述跳频的配置参数包括：是否使能跳频的参数以及频率偏移参数；按照频域划分子资源块的情况下，所述跳频的配置参数包括不使能跳频的参数时，多个子资源块在时域上连续；按照频域划分子资源块的情况下， 所述跳频的配置参数包括使能跳频的参数时，将每个子资源块在时域上划分为至少两个时域资源分块，同一子资源块的所述至少两个时域资源分块中第N时域资源分块的频域位置由第N-1个时域资源分块的频域位置和所述频率偏移参数确定，N大于或者等于2。
其中，所述频率偏移参数为一频率范围值或者时域资源分块的索引值。
其中，获得终端选择的前导码序列对应的DMRS端口，包括：
建立所述前导码组中前导码序列索引和DMRS端口之间的映射关系；
根据所述映射关系，获得终端选择的前导码序列对应的DMRS端口，所述前导码序列对应的DMRS端口为：发送所述PUSCH的DMRS端口。
其中，每一前导码组对应的DMRS端口数为至少一个。
其中，所述前导码序列索引和DMRS端口之间的映射关系包括：DMRS端口号＝f(前导码序列的索引，DMRS端口数)，f为预设函数。
其中，所述f为求余函数，所述DMRS端口号＝所述前导码序列的索引mod所述DMRS端口数。
其中，所述收发机具体用于：在所述终端选择的前导码序列所在的前导码组，对应的发送所述PUSCH的时频资源上，通过所述终端选择的前导码序列对应的DMRS端口，发送所述PUSCH。
本公开的实施例还提供一种网络设备，包括：
收发机，用于向终端发送两步随机接入过程的配置信息；使所述终端根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
所述收发机还用于接收所述终端发送的PUSCH。
其中，所述配置信息包括以下至少一项：发送前导码序列的时频资源；随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；前导码分组的参数；发送所述PUSCH的时频资源；发送所述PUSCH时，跳频的配置参数；发送所述PUSCH的上行解调参考信号DMRS配置信息。
本公开的实施例还提供一种终端，包括：处理器、存储有计算机程序的存储器，所述计算机程序被处理器运行时，执行如上所述应用于终端的方法。
本公开的实施例还提供一种通信设备，包括：处理器、存储有计算机程序的存储器，所述计算机程序被处理器运行时，执行如上所述应用于通讯设备的方法。
本公开的实施例还提供一种计算机可读存储介质，包括指令，当所述指令在计算机运行时，使得计算机执行如上所述的方法。
本公开的上述方案至少包括以下有益效果：
本公开的上述方案，通过接收网络设备发送的两步随机接入过程的配置信息；根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；发送所述PUSCH。可以节省预留用于MsgA PUSCH发送的时频资源以及指示所述时频资源位置的信令开销。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例的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公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为两步随机接入过程的流程示意图；
图2为本公开的终端侧的信息发送方法的流程图；
图3为本公开的一具体实现实例中，子资源块的划分示意图；
图4为本公开的另一具体实现实例中，子资源块的划分示意图；
图5为本公开的网络设备侧的信息发送方法的流程图；
图6为本公开的终端的架构示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
如图2所示，本公开的实施例提供一种信息发送方法，应用于终端，所述方法包括：
步骤21，接收网络设备发送的两步随机接入过程的配置信息；这里的两步随机接入过程包括如图1所示的：终端向网络设备发送MsgA(包括终端选择的前导码序列和PUSCH)以及终端接收网络设备反馈的MsgB(随机接入响应)；
步骤22，根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
步骤23，发送所述PUSCH，这里的PUSCH是指上述MsgA中的PUSCH。
本公开的该实施例，还可以进一步包括：接收网络设备发送的随机接入响应，即MsgB。
本公开的该实施例通过接收网络设备发送的两步随机接入过程的配置信息；根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；发送所述PUSCH。不再需要为每个可用前导码均预留用于发送PUSCH的时频资源，终端只需要根据所选择的前导码序列和配置信息确定用于发送PUSCH的时频资源，节省了预留用于MsgA PUSCH发送的时频资源以及指示所述时频资源位置的信令开销。
本公开的一实施例中，上述步骤22具体可以包括：
步骤221，根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组；
步骤222，获得终端选择的前导码序列对应的DMRS端口和所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源中的至少一项。
这里，可以获得所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源，或者，获得所述终端选择的前导码序列对应的DMRS端口，或者，获得所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源和终端选择的前导码序列对应的DMRS端口。
这样，在发送PUSCH时，可以基于所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源发送PUSCH，也可以基于终端选择的前导码序列对应的DMRS端口发送PUSCH，也可以在所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源上，通过该终端选择的前导码序列对应的DMRS端口发送PUSCH。
基于所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源发送PUSCH时，采用的DMRS端口可以是所述终端选择的前导码序列对应的一个固定的DMRS端口，比如DMRS端口0；也可以是从所述终端选择的前导码序列所在的前导码组对应的一个或者多个DMRS端口中选择一个DMRS端口；
基于所述终端选择的前导码序列对应的DMRS端口发送PUSCH时，发送所述PUSCH的时频资源可以是通过高层信令预留的时频资源，也可以是所述终端基于选择的前导序列所在的前导码组对应的发送所述PUSCH的时频资源；这里的终端选择的前导码序列对应的DMRS端口是：从所述终端选择的前导码序列所在的前导码组对应的一个或者多个DMRS端口中选择一个DMRS端口；
在所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源上，通过所述终端选择的前导码序列对应的DMRS端口发送PUSCH时，该发送所述PUSCH的时频资源时基于网络设备的配置信息确定的，DMRS端口也是基于网络设备的配置信息确定的。
上述实施例中，可以通过接收网络设备的高层信令，获得两步随机接入过程的配置信息。
所述高层信令可以为SIB(系统信息块)信令或小区公共(Cell-specific)RRC(无线资源控制)信令或UE专属(UE-specific)RRC信令。
所述配置信息包括以下至少一项：
1)发送前导码序列(即MsgA preamble)的时频资源，包括发送前导码序列的时频资源的位置及范围；
2)随机接入信道传输机会上，终端可选择的前导码序列的总数及前导码序列参数；
3)前导码分组的参数；比如，组的个数，或者，组的大小，即每个组内的前导码序列的数量；
4)发送所述PUSCH的时频资源，包括发送PUSCH的时频资源的位置及范围；
5)发送所述PUSCH时，跳频的配置参数，比如，是否使能跳频的参数，跳频的偏移值等；
6)发送所述PUSCH的上行解调参考信号DMRS配置信息，这里的DMRS配置信息包括：发送所述PUSCH的DMRS端口数，该发送所述PUSCH的DMRS端口数为至少两个；还可以包括以下至少一项：DMRS配置类型；前置DMRS符号个数；是否使能additional DMRS(附加DMRS)。
本公开的上述实施例中，步骤221具体可以包括：
步骤2211，根据前导码序列的总数和前导码分组的参数，将前导码序列分为N个组；
步骤2212，建立前导码组与所述前导码组内前导码序列的索引之间的映射关系；
步骤2213，根据终端选择的前导码序列的索引，从所述映射关系中，获得终端选择的前导码序列所在的前导码组。
也就是说，终端根据可用的前导码序列的总数和前导码分组的参数，建立前导码序列的索引与前导码组的索引之间的映射关系，确定每个前导码组中包含的前导码序列的个数和序列索引。
每个前导码序列只隶属于一个前导码组,一个前导码组可以包含一个或多个前导码序列。
例如，网络侧配置可用的前导码序列为64个，即前导码序列的索引为0～63；划分的前导码组的个数为4；
根据配置信息，每个前导码组包含16个前导码序列索引，即前导码group(组)#0包含索引0～15的前导码序列，前导码group#1包含索引16～31的前导码序列，前导码group#2包含索引32～47的前导码序列，前导码group#3包含索引48～63的前导码序列。
终端选择的前导码序列的索引号为17，则该终端选择的前导码序列所在 的前导码组为group#1。这里，所列参数及取值、信令内容和组成形式仅作为实施例的说明，并不用于限制上述方案的范围。
本公开的上述实施例中，步骤222中，获得终端选择的前导码序列所在的前导码组对应的物理上行共享信道PUSCH的时频资源，可以包括：
根据前导码组数，将配置的发送PUSCH的时频资源，按照频域和时域中的至少一项，划分为多个子资源块，一个前导码组对应一个子资源块。
比如，根据配置信息，前导码组被分为4组，将配置的用于MsgA中PUSCH发送的预留时频资源划分为4个频域相等的子资源块；一个前导码组对应一个子资源块。这里，并不限于一个前导码组对应一个子资源块，前导码组与子资源块的对应关系也可以是一对多或者多个对一。
该实施例中，所述跳频的配置参数包括：是否使能跳频的参数以及频率偏移参数；
按照频域划分子资源块的情况下，当所述跳频的配置参数包括不使能跳频的参数时，多个子资源块在时域上连续；
按照频域划分子资源块的情况下，当所述跳频的配置参数包括使能跳频的参数时，将每个子资源块在时域上划分为至少两个时域资源分块，同一子资源块的所述至少两个时域资源分块中第N时域资源分块的频域位置由第N-1个时域资源分块的频域位置和所述频率偏移参数确定，比如，第N时域资源分块的频域位置＝第N-1个时域资源分块的频域位置+频率偏移参数，N大于或者等于2。这里的所述频率偏移参数为一频率范围值或者时域资源分块的索引值。
具体地，基于上述4个子资源块的情况，不使能PUSCH跳频时，每个子资源块时域连续以及频域连续。
使能PUSCH跳频时，每个子资源块可以划分为两个时域长度相等的时域资源分块，当然，这里并不限于是划分为两个时域长度相等的时域资源分块，也可以划分为2个以上的时域长度相等或者不相等的时域资源分块；
如果配置的频率偏移参数offset＝2，这里的offset＝2表示时域资源分块的索引为2个时域资源分块的间隔，每个子资源块在第N个时域资源分块上跳频到第N-1时域资源分块的索引+offset对应的时域资源分块的频域范围上， 这里，第1时域资源分块的索引与子资源块的索引相同；
如果配置的频率偏移参数offset＝一预设的频率范围值，每个子资源块在第N个时域资源分块上跳频到第N-1时域资源分块的频域起始位置或者结束位置+offset对应的时域资源分块的频域范围上，这里，第1时域资源分块的频域起始位置与子资源块的频域起始位置相同。
该实施例中，网络设备的配置信息中，配置用于MsgA中发送PUSCH的时频资源，终端根据自身选择的前导码序列隐式的确定发送PUSCH的时频资源范围(即根据配置信息确定上述子资源块或者子资源块中的各时域资源分块)，子资源块为发送PUSCH的时频资源的部分时频资源。这样，网络侧下发的RRC信令中仅需指示发送PUSCH的时频资源的位置，无需要采用信令指示每一子资源块的时频资源位置，降低了信令开销，同时，选择同一个子资源块的终端数减少，降低了终端间的发送MsgA的碰撞概率。
本公开的上述实施例中，步骤222中，获得终端选择的前导码序列对应的DMRS端口，包括：
步骤2221，建立所述终端选择的前导码序列所在的前导码组中前导码序列索引和DMRS端口之间的映射关系，每一前导码组对应的DMRS端口数为至少一个；
这里，所述前导码序列索引和DMRS端口之间的映射关系包括：DMRS端口号＝f(前导码序列的索引，DMRS端口数)，f为预设函数。
步骤2222，根据所述映射关系，获得终端选择的前导码序列对应的DMRS端口。
这里，所述f可以为求余函数，所述DMRS端口号＝所述前导码序列的索引mod所述DMRS端口数。这里f还可以是其它符合DMRS端口计算规则的函数。
具体来说，根据配置信息，DMRS配置参数中，发送PUSCH的DMRS端口数为8；
终端根据前导码组包含的前导码序列的个数和DMRS端口数，建立前导码序列的索引和DMRS端口两者之间的映射关系，比如，DMRS端口号＝f(前导码序列的索引，DMRS端口数)。该映射关系中，DMRS端口数可以 为大于1且小于或者等于DMRS配置参数中配置的DMRS端口数中的任一值，一种可能的映射方式为：DMRS端口号＝前导码序列的索引mod DMRS端口数。
这里，在DMRS配置参数中配置的DMRS端口数为8，终端选择索引为4的前导码序列，对应的前导码group#0时，对应的端口号为(4mod 8＝4)。
因此，终端在子资源块#0上用DMRS端口4发送MsgA中的PUSCH。
本公开的该实施例中，通过上述DMRS端口的确定方法，可以使得在相同的时频资源上发送MsgA PUSCH的终端，根据自己选择的前导码序列，对应到不同的DMRS端口上，从而可以降低终端之间发送MsgA的碰撞几率，增加终端的检测概率。
下面结合具体的实现实例，说明上述实施例的具体实现过程：
如图3所示，一种实现方式中：
网络设备(如基站)侧配置可用的前导码序列为64个，即前导码序列的索引为0～63；划分的前导码组数为4；不使能PUSCH跳频；DMRS配置类型为类型1，前置DMRS符号个数为2(即DMRS位于子资源块前的2个OFDM符号，这里DMRS占用的OFDM符号的位置在时域上可以和子资源块连续，也可以不连续)，不使能additional DMRS(附加DMRS)；
1)根据配置信息，每个前导码组包含16个前导码序列的索引，即前导码group#0包含索引0～15的前导码序列，前导码group#1包含索引16～31的前导码序列，前导码group#2包含索引32～47的前导码序列，前导码group#3包含索引48～63的前导码序列；
2)根据配置信息，将配置的用于MsgA中PUSCH发送的预留时频资源划分为4个频域相等的子资源块；因为不使能PUSCH跳频，每个子资源块时域连续；
3)根据配置信息，DMRS端口数为8；
4)终端根据前导码组包含的前导码序列索引的个数和总共的DMRS端口数，建立前导码序列的索引和DMRS端口两者之间的映射关系，DMRS端口号＝f(前导码序列的索引，DMRS端口数)。一种可能的映射方式为：DMRS端口号＝前导码序列的索引mod DMRS端口数。
5)终端选择索引为4的前导码序列，终端选择的前导码序列属于前导码group#0，对应的DMRS端口号为(4mod 8＝4)。
6)终端在子资源块#0上用DMRS端口4发送MsgA中的PUSCH。
如图4所示，另一种实现方式中：
网络设备(如基站)配置可用的前导码序列为64个，即前导码序列的索引为0～63；划分的前导码序列组数为4；使能PUSCH跳频，配置的跳频参数offset＝2；DMRS配置类型为类型1，前置DMRS符号个数为2,不使能additional DMRS；
1)根据配置，每个前导码组包含16个前导码序列的索引，即前导码group#0包含索引0～15的前导码序列，前导码group#1包含索引16～31的前导码序列，前导码group#2包含索引32～47的前导码序列，前导码group#3包含索引48～63的前导码序列；
2)根据配置信息，将配置的用于MsgA中PUSCH发送的预留时频资源划分为4个频域相等的子资源块；因为使能PUSCH跳频，每个子资源块划分为2个时域长度相等的分块；配置的跳频参数offset＝2，每个子资源块在第2个时域分块上跳频到(子资源块索引+offset)对应的频域范围上。
3)根据配置，DMRS端口数为8；
4)终端根据前导码组包含的前导码序列的个数和配置的DMRS端口数，建立前导码的序列索引和DMRS端口两者之间的映射关系，DMRS端口号＝f(前导码序列的索引，DMRS端口数)。一种可能的映射方式为：DMRS端口号＝前导码序列的索引mod DMRS端口数。
5)终端选择索引为4的前导码序列，终端选择的前导码序列数据前导码group#0，对应的端口号为(4mod 8＝4)。
6)终端在子资源块#0上用DMRS端口4发送MsgA中的PUSCH。
上述图3和图4所示实施例中，PUSCH的时频资源的最后一个或多个符号置空(即图中的空白符号)，用作保护间隔。空白符号的个数可以通过网络设备(如基站)配置的preamble format(前导码格式)确定或者网络设备(如基站)直接在随机接入配置信息中指示出。
本公开的上述实施例，隐式选择发送PUSCH的时频资源以及对应的 DMRS端口，即根据配置信息确定发送PUSCH的时频资源，避免额外的信令开销；在用于MsgA PUSCH发送的时频资源上，可以使用多于1个的DMRS端口，即上述子资源块对应的DMRS端口为两个以上，终端根据选择的MsgA前导码序列确定对应的DMRS端口；并在确定的子资源块上采用该确定的DMRS端口发送PUSCH，减少终端碰撞概率，提升系统效率。
如图5所示，本公开的实施例还提供一种信息发送方法，应用于网络设备，所述方法包括：
步骤51，向终端发送两步随机接入过程的配置信息；使所述终端根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
步骤52，接收所述终端发送的PUSCH。
其中，所述配置信息包括以下至少一项：发送前导码序列的时频资源；随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；前导码分组的参数；发送所述PUSCH的时频资源；发送所述PUSCH时，跳频的配置参数；发送所述PUSCH时，上行解调参考信号DMRS配置信息。
需要说明的是，上述终端侧方法实施例中所有实现方式均适用于该实施例中，也能达到相同的技术效果。
如图6所示，本公开的实施例还提供一种终端60，包括：
收发机61，用于接收网络设备发送的两步随机接入过程的配置信息；
处理器62，用于根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
所述收发机61还用于发送所述PUSCH。
其中，所述处理器62具体用于：根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组；终端选择的前导码序列对应的DMRS端口和所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源中的至少一项。
其中，所述配置信息包括以下至少一项：发送前导码序列的时频资源； 随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；前导码分组的参数；发送所述PUSCH的时频资源；发送所述PUSCH时，跳频的配置参数；发送所述PUSCH的上行解调参考信号DMRS配置信息，所述DMRS配置信息配置的所述DMRS端口数为至少两个。
其中，根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组，包括：
根据前导码序列的总数和前导码分组的参数，将前导码序列分为N个组；
建立前导码组与所述前导码组内前导码序列的索引之间的映射关系；
根据终端选择的前导码序列的索引，从所述映射关系中，获得终端选择的前导码序列所在的前导码组。
其中，获得终端选择的前导码序列所在的前导码组对应的物理上行共享信道PUSCH的时频资源，包括：根据前导码组数，将配置的发送PUSCH的时频资源，按照频域和时域中的至少一项，划分为多个子资源块，一个前导码组对应一个子资源块。
其中，所述跳频的配置参数包括：是否使能跳频的参数以及频率偏移参数；按照频域划分子资源块的情况下，所述跳频的配置参数包括不使能跳频的参数时，多个子资源块在时域上连续；按照频域划分子资源块的情况下，所述跳频的配置参数包括使能跳频的参数时，将每个子资源块在时域上划分为至少两个时域资源分块，同一子资源块的所述至少两个时域资源分块中第N时域资源分块的频域位置由第N-1个时域资源分块的频域位置和所述频率偏移参数确定，N大于或者等于2。
其中，所述频率偏移参数为一频率范围值或者时域资源分块的索引值。
其中，获得终端选择的前导码序列对应的DMRS端口，包括：根据所述前导码组包含的前导码序列的个数和所述DMRS配置信息配置的DMRS端口数，建立所述前导码组中前导码序列索引和DMRS端口之间的映射关系；
根据所述映射关系，获得终端选择的前导码序列对应的DMRS端口。
其中，每一前导码组对应的DMRS端口数为至少一个。
其中，所述前导码序列索引和DMRS端口之间的映射关系包括：DMRS端口号＝f(前导码序列的索引，DMRS端口数)，f为预设函数。
其中，所述f为求余函数，所述DMRS端口号＝所述前导码序列的索引mod所述DMRS端口数。
其中，所述收发机具体用于：在所述终端选择的前导码序列所在的前导码组，对应的发送所述PUSCH的时频资源上，通过所述终端选择的前导码序列对应的DMRS端口，发送所述PUSCH。
需要说明的是，该终端是与上述终端侧的方法对应的终端，上述方法实施例中所有实现方式均适用于该实施例中，也能达到相同的技术效果。该终端还可以进一步包括：存储器63；收发机61与处理器62，以及，收发机61与存储器63之间，均可以通过总线接口连接，收发机61的功能可以由处理器62实现，处理器62的功能也可以由收发机61实现。
本公开的实施例还提供一种网络设备，包括：
收发机，用于向终端发送两步随机接入过程的配置信息；使所述终端根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
所述收发机还用于接收所述终端发送的PUSCH。
其中，所述配置信息包括以下至少一项：发送前导码序列的时频资源；随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；前导码分组的参数；发送所述PUSCH的时频资源；发送所述PUSCH时，跳频的配置参数；发送所述PUSCH时，上行解调参考信号DMRS配置信息。
需要说明的是，该网络设备是与上述网络设备侧的方法对应的网络设备，上述方法实施例中所有实现方式均适用于该实施例中，也能达到相同的技术效果。该网络设备还可以进一步包括：处理器，存储器；收发机与处理器，以及，收发机与存储器之间，均可以通过总线接口连接，收发机的功能可以由处理器实现，处理器的功能也可以由收发机实现。
本公开的实施例还提供一种通信设备，包括：处理器、存储有计算机程序的存储器，所述计算机程序被处理器运行时，执行如上所述的方法。该通信设备为终端时，执行上述终端侧的方法；该通信设备为网络设备时，执行上述网络设备侧的方法。
本公开的实施例还提供一种计算机可读存储介质，包括指令，当所述指令在计算机运行时，使得计算机执行如上终端侧或者网络设备侧的方法。
本公开的上述实施例，隐式选择发送PUSCH的时频资源以及对应的DMRS端口，即根据配置信息确定发送PUSCH的时频资源，避免额外的信令开销；在用于MsgA PUSCH发送的时频资源上，可以使用多于1个的DMRS端口，终端根据选择的MsgA前导码序列确定对应的DMRS端口；并在确定的子资源块上采用该确定的DMRS端口发送PUSCH，减少终端碰撞概率，提升系统效率。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本公开所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单 元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
此外，需要指出的是，在本公开的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行，某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言，能够理解本公开的方法和装置的全部或者任何步骤或者部件，可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中，以硬件、固件、软件或者它们的组合加以实现，这是本领域普通技术人员在阅读了本公开的说明的情况下运用他们的基本编程技能就能实现的。
因此，本公开的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此，本公开的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说，这样的程序产品也构成本公开，并且存储有这样的程序产品的存储介质也构成本公开。显然，所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。还需要指出的是，在本公开的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固 件、中间件、微码或其组合来实现。对于硬件实现，单元、模块、子单元和子模块可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
以上所述是本公开的可选的实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (33)

  1. 一种信息发送方法，应用于终端，包括：
    接收网络设备发送的两步随机接入过程的配置信息；
    根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
    发送所述PUSCH。
  2. 根据权利要求1所述的信息发送方法，其中，根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项，包括：
    根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组；
    获得终端选择的前导码序列对应的DMRS端口和所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源中的至少一项。
  3. 根据权利要求2所述的信息发送方法，其中，所述配置信息包括以下至少一项：
    发送前导码序列的时频资源；
    随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；
    前导码分组的参数；
    发送所述PUSCH的时频资源；
    发送所述PUSCH时，跳频的配置参数；
    发送所述PUSCH的上行解调参考信号DMRS配置信息。
  4. 根据权利要求3所述的信息发送方法，其中，所述DMRS配置信息配置的发送所述PUSCH的DMRS端口数为至少两个。
  5. 根据权利要求3所述的信息发送方法，其中，根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组，包括：
    根据前导码序列的总数和前导码分组的参数，将前导码序列分为N个组；
    建立前导码组与所述前导码组内前导码序列的索引之间的映射关系；
    根据终端选择的前导码序列的索引，从所述映射关系中，获得终端选择的前导码序列所在的前导码组。
  6. 根据权利要求5所述的信息发送方法，其中，获得终端选择的前导码序列所在的前导码组对应的物理上行共享信道PUSCH的时频资源，包括：
    根据前导码组数，将所述配置信息中配置的发送PUSCH的时频资源，按照频域和时域中的至少一项，划分为多个子资源块，一个前导码组对应一个子资源块。
  7. 根据权利要求6所述的信息发送方法，其中，所述跳频的配置参数包括：是否使能跳频的参数以及频率偏移参数；
    按照频域划分子资源块的情况下，所述跳频的配置参数包括：不使能跳频的参数时，多个子资源块在时域上连续；
    按照频域划分子资源块的情况下，所述跳频的配置参数包括：使能跳频的参数时，将每个子资源块在时域上划分为至少两个时域资源分块，同一子资源块的所述至少两个时域资源分块中第N时域资源分块的频域位置由第N-1个时域资源分块的频域位置和所述频率偏移参数确定，N大于或者等于2。
  8. 根据权利要求7所述的信息发送方法，其中，所述频率偏移参数为一频率范围值或者时域资源分块的索引值。
  9. 根据权利要求5至8任一项所述的信息发送方法，其中，获得终端选择的前导码序列对应的DMRS端口，包括：
    建立所述终端选择的前导码序列所在的前导码组中前导码序列索引和DMRS端口之间的映射关系；
    根据所述映射关系，获得终端选择的前导码序列对应的DMRS端口。
  10. 根据权利要求9所述的信息发送方法，其中，每一前导码组对应的所述DMRS端口数为至少一个。
  11. 根据权利要求9所述的信息发送方法，其中，所述前导码序列索引和DMRS端口之间的映射关系包括：
    DMRS端口号＝f(前导码序列的索引，DMRS端口数)，f为预设函数。
  12. 根据权利要求11所述的信息发送方法，其中，所述f为求余函数，所述DMRS端口号＝所述前导码序列的索引mod所述DMRS端口数。
  13. 根据权利要求2所述的信息发送方法，其中，发送所述PUSCH，包括：
    在所述终端选择的前导码序列所在的前导码组，对应的发送所述PUSCH的时频资源上，通过所述终端选择的前导码序列对应的DMRS端口，发送所述PUSCH。
  14. 一种信息发送方法，应用于网络设备，包括：
    向终端发送两步随机接入过程的配置信息；使所述终端根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
    接收所述终端发送的PUSCH。
  15. 根据权利要求14所述的信息发送方法，其中，所述配置信息包括以下至少一项：
    发送前导码序列的时频资源；
    随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；
    前导码分组的参数；
    发送所述PUSCH的时频资源；
    发送所述PUSCH时，跳频的配置参数；
    发送所述PUSCH时，上行解调参考信号DMRS配置信息。
  16. 一种终端，包括：
    收发机，用于接收网络设备发送的两步随机接入过程的配置信息；
    处理器，用于根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
    所述收发机还用于发送所述PUSCH。
  17. 根据权利要求16所述的终端，其中，所述处理器具体用于：
    根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导 码序列所在的前导码组；
    获得终端选择的前导码序列对应的DMRS端口和所述终端选择的前导码序列所在的前导码组对应的发送所述PUSCH的时频资源中的至少一项。
  18. 根据权利要求17所述的终端，其中，所述配置信息包括以下至少一项：
    发送前导码序列的时频资源；
    随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；
    前导码分组的参数；
    发送所述PUSCH的时频资源；
    发送所述PUSCH时，跳频的配置参数；
    发送所述PUSCH的上行解调参考信号DMRS配置信息。
  19. 根据权利要求18所述的终端，其中，所述DMRS配置信息配置的发送所述PUSCH的DMRS端口数为至少两个。
  20. 根据权利要求18所述的终端，其中，根据所述终端选择的前导码序列和所述配置信息，获得终端选择的前导码序列所在的前导码组，包括：
    根据前导码序列的总数和前导码分组的参数，将前导码序列分为N个组；
    建立前导码组与所述前导码组内前导码序列的索引之间的映射关系；
    根据终端选择的前导码序列的索引，从所述映射关系中，获得终端选择的前导码序列所在的前导码组。
  21. 根据权利要求20所述的终端，其中，获得终端选择的前导码序列所在的前导码组对应的物理上行共享信道PUSCH的时频资源，包括：
    根据前导码组数，将配置的发送PUSCH的时频资源，按照频域和时域中的至少一项，划分为多个子资源块，一个前导码组对应一个子资源块。
  22. 根据权利要求21所述的终端，其中，所述跳频的配置参数包括：是否使能跳频的参数以及频率偏移参数；
    按照频域划分子资源块的情况下，所述跳频的配置参数包括：不使能跳频的参数时，多个子资源块在时域上连续；
    按照频域划分子资源块的情况下，所述跳频的配置参数包括使能跳频的 参数时，将每个子资源块在时域上划分为至少两个时域资源分块，同一子资源块的所述至少两个时域资源分块中第N时域资源分块的频域位置由第N-1个时域资源分块的频域位置和所述频率偏移参数确定，N大于或者等于2。
  23. 根据权利要求22所述的终端，其中，所述频率偏移参数为一频率范围值或者时域资源分块的索引值。
  24. 根据权利要求20至23任一项所述的终端，其中，获得终端选择的前导码序列对应的DMRS端口，包括：
    建立所述前导码组中前导码序列索引和DMRS端口之间的映射关系；
    根据所述映射关系，获得终端选择的前导码序列对应的DMRS端口，所述前导码序列对应的DMRS端口为：发送所述PUSCH的DMRS端口。
  25. 根据权利要求24所述的终端，其中，每一前导码组对应的DMRS端口数为至少一个。
  26. 根据权利要求24所述的终端，其中，所述前导码序列索引和DMRS端口之间的映射关系包括：
    DMRS端口号＝f(前导码序列的索引，DMRS端口数)，f为预设函数。
  27. 根据权利要求26所述的终端，其中，所述f为求余函数，所述DMRS端口号＝所述前导码序列的索引mod所述DMRS端口数。
  28. 根据权利要求17所述的终端，其中，所述收发机具体用于：
    在所述终端选择的前导码序列所在的前导码组，对应的发送所述PUSCH的时频资源上，通过所述终端选择的前导码序列对应的DMRS端口，发送所述PUSCH。
  29. 一种网络设备，包括：
    收发机，用于向终端发送两步随机接入过程的配置信息；使所述终端根据所述终端选择的前导码序列和所述配置信息，获得发送物理上行共享信道PUSCH的时频资源和发送所述PUSCH的解调参考信号DMRS端口中的至少一项；
    所述收发机还用于接收所述终端发送的PUSCH。
  30. 根据权利要求29所述的网络设备，其中，所述配置信息包括以下至少一项：
    发送前导码序列的时频资源；
    随机接入信道传输机会上，终端可选择的前导码序列总数及前导码序列参数；
    前导码分组的参数；
    发送所述PUSCH的时频资源；
    发送所述PUSCH时，跳频的配置参数；
    发送所述PUSCH时，上行解调参考信号DMRS配置信息。
  31. 一种终端，包括：处理器、存储有计算机程序的存储器，所述计算机程序被处理器运行时，执行如权利要求1至13任一项所述的方法。
  32. 一种通信设备，包括：处理器、存储有计算机程序的存储器，所述计算机程序被处理器运行时，执行如权利要求14至15任一项所述的方法。
  33. 一种计算机可读存储介质，包括指令，当所述指令在计算机运行时，使得计算机执行如权利要求1至13任一项所述的方法，或者，如权利要求14至15任一项所述的方法。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11457451B2 (en) * 2017-11-17 2022-09-27 Ntt Docomo, Inc. Terminal and radio communication method for transmission of a control channel or reference signal
CN116318580A (zh) * 2023-03-01 2023-06-23 中国信息通信研究院 一种非正交多址用户组上行数据传输方法和设备
CN117156560A (zh) * 2022-05-19 2023-12-01 大唐移动通信设备有限公司 一种数据传输的方法、终端、基站及存储介质

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115250539B (zh) * 2021-04-28 2025-07-01 大唐移动通信设备有限公司 接入方法及装置
CN120568507A (zh) * 2024-02-29 2025-08-29 中兴通讯股份有限公司 信号传输方法、通信装置及存储介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108432331A (zh) * 2015-10-30 2018-08-21 瑞典爱立信有限公司 无线资源上的基于竞争的随机接入
US20180332467A1 (en) * 2017-02-13 2018-11-15 Futurewei Technologies, Inc. System and method for user equipment identification and communications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108271259B (zh) * 2016-12-30 2023-10-24 华为技术有限公司 控制信道的资源指示方法、用户设备和网络设备
CN108809602B (zh) * 2017-05-05 2022-06-03 北京三星通信技术研究有限公司 基站、终端及随机接入前导检测、随机接入信道配置方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108432331A (zh) * 2015-10-30 2018-08-21 瑞典爱立信有限公司 无线资源上的基于竞争的随机接入
US20180332467A1 (en) * 2017-02-13 2018-11-15 Futurewei Technologies, Inc. System and method for user equipment identification and communications

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CAICT: "Considerations on Resource Pool Design for PUSCH in MsgA of 2-step RACH", 3GPP TSG RAN WG1 MEETING #96 R1-1902917, 1 March 2019 (2019-03-01), XP051600615, DOI: 20200604170110X *
CATT: "Discussion on Channel Structure for 2-Step RACH", 3GPP TSG RAN WG1 MEETING #96 R1-1902027, 1 March 2019 (2019-03-01), XP051599723, DOI: 20200604170248X *
ZTE ET AL.: "Considerations on the channel structure of msgA", 3GPP TSG RAN WG1 MEETING #96 R1-1901626, 1 March 2019 (2019-03-01), XP051599323, DOI: 20200604170346X *
ZTE: "Summary of 7.2.1.1 Channel Structure for Two-Step RACH", 3GPP TSG RAN WG1 MEETING #96 R1-1903435, 1 March 2019 (2019-03-01), XP051690819, DOI: 20200604170605X *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11457451B2 (en) * 2017-11-17 2022-09-27 Ntt Docomo, Inc. Terminal and radio communication method for transmission of a control channel or reference signal
CN117156560A (zh) * 2022-05-19 2023-12-01 大唐移动通信设备有限公司 一种数据传输的方法、终端、基站及存储介质
CN116318580A (zh) * 2023-03-01 2023-06-23 中国信息通信研究院 一种非正交多址用户组上行数据传输方法和设备

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