WO2020164449A1 - 信息传输方法、装置及设备 - Google Patents

信息传输方法、装置及设备 Download PDF

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Publication number
WO2020164449A1
WO2020164449A1 PCT/CN2020/074588 CN2020074588W WO2020164449A1 WO 2020164449 A1 WO2020164449 A1 WO 2020164449A1 CN 2020074588 W CN2020074588 W CN 2020074588W WO 2020164449 A1 WO2020164449 A1 WO 2020164449A1
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pusch
frequency resource
time
mapped
preamble
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PCT/CN2020/074588
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English (en)
French (fr)
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任斌
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电信科学技术研究院有限公司
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Priority to EP24193025.4A priority Critical patent/EP4436085A2/en
Priority to KR1020217028661A priority patent/KR102660235B1/ko
Priority to US17/430,919 priority patent/US12048026B2/en
Priority to EP20756110.1A priority patent/EP3927063B1/en
Publication of WO2020164449A1 publication Critical patent/WO2020164449A1/zh
Priority to US18/738,269 priority patent/US20240334498A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • H04W74/0841Random access procedures, e.g. with 4-step access with collision treatment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/004Transmission of channel access control information in the uplink, i.e. towards network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0866Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

Definitions

  • the present disclosure relates to the field of communication technology, in particular to an information transmission method, device and equipment.
  • the Long Term Evolution (LTE) protocol in related technologies uses a four-step random access process.
  • 5G new radio
  • NR uplink multi-beam
  • PRACH Physical Random Access Channel
  • Performance In order to effectively reduce the processing method of the control plane processing delay, Rel-16 of NR in the related technology has established a WI project for the two-step random access process.
  • FIG. 1 it is a schematic diagram of the NR two-step random access process.
  • message A (MsgA) sends both preamble and data.
  • the content of the data bearer corresponds to the content of message 3 (Msg3) in the four-step random access process.
  • the data is based on the PUSCH channel structure. Based on this, how to ensure the correctness of the two-step random access process has become an urgent problem to be solved at present.
  • the purpose of the present disclosure is to provide an information transmission method, device and equipment to ensure the correctness of the two-step random access process.
  • an information transmission method applied to a terminal including:
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • mapping relationship includes at least one of the following:
  • mapping relationship includes a first mapping relationship
  • the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • mapping relationship includes a second mapping relationship
  • the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • the method further includes:
  • the mapping relationship between the Preamble parameter and the PUSCH parameter in the message A is obtained.
  • the sending of the message A to the network device according to the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process includes:
  • the message A is sent to the network device.
  • the determining the target PUSCH time-frequency resource and the target PUSCH DMRS used to send the message A according to the mapping relationship includes:
  • mapping relationship determine the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index
  • the sending the message A to a network device based on the target PUSCH time-frequency resource and the target PUSCH DMRS includes:
  • the message A is sent to the network device.
  • the method further includes:
  • embodiments of the present disclosure also provide an information transmission method, which is applied to network equipment, including:
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • mapping relationship includes at least one of the following:
  • mapping relationship includes a first mapping relationship
  • the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • mapping relationship includes a second mapping relationship
  • the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • the method Before receiving the message A sent by the terminal based on the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process, the method further includes:
  • mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process is sent to the terminal through broadcast signaling or radio resource control signaling.
  • the method further includes:
  • the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index selected by the terminal are obtained according to the mapping relationship;
  • PUSCH channel detection is performed.
  • the method further includes:
  • the embodiments of the present disclosure also provide a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and running on the processor; the processor executes all The following steps are implemented when the program is described:
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • mapping relationship includes at least one of the following:
  • mapping relationship includes a first mapping relationship
  • the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • mapping relationship includes a second mapping relationship
  • the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • the processor further implements the following steps when executing the program:
  • the mapping relationship between the Preamble parameter and the PUSCH parameter in the message A is obtained.
  • the processor further implements the following steps when executing the program:
  • the message A is sent to the network device.
  • the processor further implements the following steps when executing the program:
  • mapping relationship determine the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index
  • the message A is sent to the network device.
  • the transceiver is used for:
  • an embodiment of the present disclosure further provides a terminal, including:
  • the first sending module is configured to send the message A to the network device according to the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process;
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • the embodiments of the present disclosure also provide a network device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and running on the processor; in:
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • mapping relationship includes at least one of the following:
  • mapping relationship includes a first mapping relationship
  • the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • mapping relationship includes a second mapping relationship
  • the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • the transceiver is also used for:
  • mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process is sent to the terminal through broadcast signaling or radio resource control signaling.
  • the processor implements the following steps when executing the program:
  • the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index selected by the terminal are obtained according to the mapping relationship;
  • PUSCH channel detection is performed.
  • the transceiver is also used for:
  • the embodiments of the present disclosure also provide a network device, including:
  • the first receiving module is configured to receive the message A sent by the terminal based on the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process;
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • the embodiments of the present disclosure also provide a computer-readable storage medium on which a computing program is stored.
  • the computer program is executed by a processor, the above-mentioned information transmission method or the above-mentioned The steps of the information transmission method.
  • the message A is sent to the network device according to the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process;
  • Preamble parameters include: preamble index Preamble index and physical random access channel PRACH time-frequency resources.
  • the PUSCH parameters include: PUSCH time-frequency resources and PUSCH demodulation reference signal DMRS.
  • Figure 1 is a schematic flow diagram of a two-step random access process in related technologies
  • Figure 3 is a schematic diagram of the configuration types of PUSCH DMRS ports under the CP-OFDM waveform
  • FIG. 5 is a second schematic diagram of the mapping of the first mapping relationship in an embodiment of the disclosure.
  • FIG. 6 is the third schematic diagram of mapping of the first mapping relationship in an embodiment of the disclosure.
  • FIG. 7 is the fourth schematic diagram of mapping of the first mapping relationship in an embodiment of the disclosure.
  • FIG. 8 is the fifth schematic diagram of the mapping of the first mapping relationship in the embodiments of the disclosure.
  • FIG. 9 is one of the mapping schematic diagrams of the second mapping relationship in an embodiment of the disclosure.
  • FIG. 10 is the second schematic diagram of the mapping of the second mapping relationship in the embodiment of the disclosure.
  • Figure 11 is a schematic diagram of the PRACH Preamble format 0 defined by NR and the PUSCH channel structure with a subcarrier spacing of 15KHz;
  • FIG. 12 is the third schematic diagram of the mapping of the second mapping relationship in the embodiment of the disclosure.
  • FIG. 13 is the fourth schematic diagram of the mapping of the second mapping relationship in the embodiment of the disclosure.
  • 15 is a second schematic diagram of the flow of the information transmission method according to the embodiment of the disclosure.
  • FIG. 16 is a structural block diagram of a terminal according to an embodiment of the disclosure.
  • FIG. 17 is a schematic diagram of modules of a terminal according to an embodiment of the disclosure.
  • FIG. 18 is a structural block diagram of a network device according to an embodiment of the disclosure.
  • FIG. 19 is a schematic diagram of modules of a network device according to an embodiment of the disclosure.
  • an information transmission method is provided for an embodiment of the present disclosure, which is applied to a terminal, and includes:
  • Step 201 Send the message A to the network device according to the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process;
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • the mapping relationship between the Preamble parameter and the PUSCH parameter in the message A of the two-step random access process is predefined by the protocol or configured by the network.
  • Preamble and PUSCH Physical Uplink Shared Channel
  • PUSCH Physical Uplink Shared Channel
  • the following is a schematic diagram of the configuration types of the PUSCH DMRS port under the CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplexing) waveform shown in FIG. 3 to specifically describe the parameters related to the PUSCH DMRS port.
  • CP-OFDM Cyclic Prefix-Orthogonal Frequency Division Multiplexing
  • this figure is specifically for the configuration type 1 of PUSCH DMRS ports under the CP-OFDM waveform defined by NR, taking 2 OFDM symbols in the time domain as an example.
  • the maximum number of DMRS orthogonal ports that can be supported is 8.
  • ports 0, 1, 4, and 5 share the same time-frequency resources
  • ports 2, 3, 6, and 7 share the same time-frequency resources.
  • Port 0/1/4/5 and port 2/3/ Frequency division multiplexing is used to distinguish between 6/7.
  • FD-OCC Frequency domain Orthogonal Cover Code, frequency domain orthogonal mask
  • TD-OCC Time Domain Orthogonal Cover Code, time domain orthogonal mask
  • the frequency domain occupies an even-numbered RE in a PRB (Physical Resource Block, physical resource block)
  • the time domain occupies 2 OFDM symbols
  • the length is 2 Distinguish between FD-OCC and TD-OCC.
  • Ports 2, 3, 6, and 7 share the same time-frequency resources, the frequency domain occupies an odd-numbered RE in a PRB, and the time domain occupies 2 OFDM symbols, which are further distinguished by FD-OCC and TD-OCC with a length of 2.
  • the specific expression is as follows:
  • Port 7 FD-OCC ⁇ 1,-1 ⁇ +TD-OCC ⁇ 1,-1 ⁇ .
  • the PUSCH DMRS (Demodulation Reference Signals, demodulation reference signal) port includes OCC (Orthogonal Cover Code, orthogonal mask) parameters.
  • the message A is sent to the network device according to the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process; wherein, the Preamble Parameters include: Preamble index and physical random access channel PRACH time-frequency resources.
  • the PUSCH parameters include: PUSCH time-frequency resources and PUSCH demodulation reference signal DMRS.
  • mapping relationship includes at least one of the following:
  • mapping relationship includes a first mapping relationship; the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • the first mapping relationship is based on the mapping of Preamble index to ⁇ PUSCH time-frequency resource, PUSCH DMRS ⁇ .
  • the base station when it receives MsgA, it first needs to perform UE activation detection based on the Preamble, and then uniquely determine the PUSCH channel based on the detected Preamble, and then detect the PUSCH channel.
  • the mapping from Preamble index to ⁇ PUSCH time-frequency resource, PUSCH DMRS ⁇ can only be one to one, and N1 (where N1 is A positive integer greater than 1) to 1, but not 1 to more.
  • the N1 Preamble indexes in the N1 Preamble index to 1 PUSCH time-frequency resource mapping can be N1 Preamble indexes included in the same Zadoff-Chu (ZC) root sequence, or any N1 Preamble index numbered consecutively. index.
  • ZC Zadoff-Chu
  • Example 1 A Preamble index is mapped to a PUSCH time-frequency resource and a PUSCH DMRS, that is, a Preamble index is mapped to ⁇ PUSCH time-frequency resource, PUSCH DMRS ⁇
  • Preamble#0 is mapped to the combination of ⁇ PUSCH#0, DMRS#0 ⁇
  • Preamble#1 is mapped to the combination of ⁇ PUSCH#0, DMRS#1 ⁇ .
  • Preamble#0 is mapped to the combination of ⁇ PUSCH#0, DMRS#0 ⁇
  • Preamble#1 is mapped to the combination of ⁇ PUSCH#1, DMRS#1 ⁇ .
  • Preamble#0 and Preamble#1 represent the Preamble index values numbered 0 and 1, respectively, PUSCH#0 and PUSCH#1 represent PUSCH time-frequency resources numbered 0 and 1, DMRS#0 and DMRS#1 represent the numbers respectively PUSCH DMRS of 0 and 1.
  • Example 2 N1 Preamble index to 1 ⁇ PUSCH time-frequency resource, PUSCH DMRS ⁇
  • a PRACH time-frequency resource supports 64 preamble indexes, therefore, 1 ⁇ N1 ⁇ 64, and the value of parameter N1 needs to consider SSB (Synchronization Signal Block, synchronization signal block) Mapping to the PRACH time-frequency resource RO (RACH Occasion).
  • SSB Synchronization Signal Block, synchronization signal block
  • RO RACH Occasion
  • Preamble index values (Preamble#0/1/2/3) numbered 0 to 3 are simultaneously mapped to PUSCH time-frequency resources numbered 0 (PUSCH#0), and four Preambles
  • the index (Preamble#0/1/2/3) is mapped to four DMRS (DMRS#0/1/2/3) respectively;
  • Preamble index values numbered 4 to 7 are simultaneously mapped to the PUSCH time-frequency resource numbered 1 (PUSCH#1), and four Preamble indexes (Preamble#4/5/6) /7) Map to four DMRS (DMRS#0/1/2/3) respectively.
  • the uplink virtual MU-MIMO Multi-User Multiple-Input Multiple-Output
  • the uplink virtual MU-MIMO Multi-User Multiple-Input Multiple-Output
  • one Preamble index is mapped to one PUSCH DMRS, and N1 users can be supported on one PUSCH time-frequency resource, that is, the uplink virtual MU-MIMO of N1 users is supported.
  • Preamble index values numbered 4 to 7 are simultaneously mapped to the PUSCH time-frequency resource numbered 1 (PUSCH#1), and four Preamble indexes (Preamble#4/5/6) /7) Simultaneously map to DMRS numbered 0 (DMRS#0).
  • the uplink PUSCH transmission of one UE can be supported.
  • Ceil (N1/T) preamble index to 1 PUSCH DMRS that is, N1 preamble index is further divided into T subgroups, each group has N1/T preamble index
  • T is a positive integer greater than or equal to 1.
  • ceil() is a round-up function.
  • Preamble index values numbered 0 to 3 are simultaneously mapped to PUSCH time-frequency resources numbered 0 (PUSCH#0)
  • Preamble indexes Preamble#0 and #1
  • Preamble indexes Preamble#2 and #3
  • Preamble index values numbered 4 to 7 Preamble# 4/5/6/7) are simultaneously mapped to the PUSCH time-frequency resource numbered 1 (PUSCH#1)
  • 2 Preamble indexes (Preamble#4 and #5) are mapped to DMRS#0
  • 2 Preamble indexes (Preamble #6 and #7) are mapped to DMRS#1.
  • the uplink virtual MU-MIMO of two UEs can be supported.
  • mapping relationship includes a second mapping relationship; the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • the frequency domain deviation ⁇ F is pre-defined by a protocol or notified through signaling; the time deviation ⁇ T is pre-defined by a protocol or notified through signaling.
  • the second mapping relationship is based on the mapping of PRACH time-frequency resources to ⁇ PUSCH time-frequency resources, PUSCH DMRS ⁇ .
  • the base station when it receives MsgA, it first needs to perform UE activation detection based on the Preamble, and then uniquely determine the PUSCH channel based on the detected Preamble, and then detect the PUSCH channel.
  • the mapping of PRACH time-frequency resources to ⁇ PUSCH time-frequency resources, PUSCH DMRS ⁇ can only be one to one, and N2 (where, N2 is a positive integer greater than 1) to 1, but not 1 to more.
  • Example 1 A PRACH time-frequency resource is mapped to a PUSCH time-frequency resource and a PUSCH DMRS, that is, a PRACH time-frequency resource is mapped to ⁇ PUSCH time-frequency resource, PUSCH DMRS ⁇
  • PRACH#0 is mapped to the combination of ⁇ PUSCH#0, DMRS#0 ⁇
  • PRACH#1 is mapped to the combination of ⁇ PUSCH#0, DMRS#1 ⁇ .
  • PRACH#0 is mapped to the combination of ⁇ PUSCH#0, DMRS#0 ⁇ , and PRACH#1 is mapped to the combination of ⁇ PUSCH#1, DMRS#1 ⁇ .
  • PRACH#0 and PRACH#1 represent PRACH time-frequency resources numbered 0 and 1, respectively, PUSCH#0 and PUSCH#1 represent PUSCH time-frequency resources numbered 0 and 1, DMRS#0 and DMRS#1 represent respectively PUSCH DMRS numbered 0 and 1.
  • the PRACH Preamble format 0 defined by Rel-15NR and the PUSCH channel structure with subcarrier spacing (SCS) of 15KHz are shown in FIG. 11 respectively.
  • SCS subcarrier spacing
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource may further include:
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • the frequency domain deviation ⁇ F is pre-defined by the protocol or notified through signaling; the time deviation ⁇ T is pre-defined by the protocol or notified through signaling.
  • the relationship between the PRACH time-frequency resources and the PUSCH time-frequency resources as shown in FIG. 12 is continuous in the time domain, and there is no time offset.
  • the starting PRB position of the PRACH time-frequency resources and the starting PRB position of the PUSCH time-frequency resources have a fixed frequency domain deviation ⁇ F in the frequency domain,
  • ⁇ T there is a fixed time offset ⁇ T between the end time of the Preamble time-frequency resource in MsgA and the start time of the PUSCH time-frequency resource in MsgA, and ⁇ T is not 0.
  • Example 2 N2 PRACH time-frequency resources are mapped to 1 ⁇ PUSCH time-frequency resource, PUSCH DMRS ⁇
  • N2 4 PRACH time-frequency resources numbered 0 to 3 (PRACH#0/1/2/3) are simultaneously mapped to PUSCH time-frequency resources numbered 0 (PUSCH#0), and four PRACH time-frequency resources (PRACH#0/1/2/3) are simultaneously mapped to DMRS numbered 0 (DMRS#0);
  • PRACH time-frequency resources numbered 4 to 7 are simultaneously mapped to PUSCH time-frequency resources numbered 1 (PUSCH#1), and four PRACH time-frequency resources (PRACH#4/ 5/6/7) are simultaneously mapped to DMRS numbered 0 (DMRS#0).
  • the uplink virtual MU-MIMO of one UE can be supported.
  • mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • the third mapping relationship is a mapping from ⁇ Preamble index, PRACH time-frequency resource ⁇ to ⁇ PUSCH time-frequency resource, PUSCH DMRS ⁇ considering the SSB to RO mapping condition.
  • the third mapping relationship includes: Q Preamble indexes in one RO are mapped to one PUSCH time-frequency resource
  • the value of Q is a positive integer ranging from 1 to 64, and optionally, the value of Q is an integer multiple of 2 or 4.
  • the third mapping relationship includes: S Preamble indexes are divided into F second index groups, and each second index group is connected to One SSB is associated and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each of the second index groups includes at least one continuous CBRA-based Preamble index.
  • fix (S/F) consecutive CBRA-based preamble indexes are associated with one SSB, and mapped to one PUSCH time-frequency resource and one PUSCH DMR. It should be noted that fix(x) is a rounding function, which directly takes the integer part of x.
  • the method may further include:
  • the mapping relationship between the Preamble parameter and the PUSCH parameter in the message A is obtained.
  • step 201 may specifically include:
  • This step can also specifically include:
  • the configuration resource set is obtained by receiving a broadcast message sent by a network device. That is to say, the network device notifies the terminal through a broadcast message of the configuration resource set including the PRACH time-frequency resource and the preamble index.
  • a target PRACH time-frequency resource and a target preamble index can be randomly selected according to the equal probability criterion.
  • a target PUSCH time-frequency resource and a target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index are determined.
  • the message A is sent to the network device.
  • this step may also include:
  • the message A is sent to the network device.
  • the method may further include:
  • the message A is sent to the network device according to the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process; wherein, the Preamble Parameters include: Preamble index and physical random access channel PRACH time-frequency resources.
  • the PUSCH parameters include: PUSCH time-frequency resources and PUSCH demodulation reference signal DMRS.
  • an information transmission method is provided for an embodiment of the present disclosure, applied to a network device, and includes:
  • Step 1501 Receive the message A sent by the terminal based on the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process;
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • the mapping relationship between the Preamble parameter and the PUSCH parameter in the message A of the two-step random access process is predefined by the protocol or configured by the network.
  • the message A sent by the terminal based on the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process is received; wherein, the Preamble parameter includes: Preamble index and physical random access channel PRACH time-frequency resources.
  • the PUSCH parameters include: PUSCH time-frequency resources and PUSCH demodulation reference signal DMRS.
  • mapping relationship includes at least one of the following:
  • mapping relationship includes a first mapping relationship; the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • the first mapping relationship is based on the mapping of Preamble index to ⁇ PUSCH time-frequency resource, PUSCH DMRS ⁇ .
  • mapping relationship includes a second mapping relationship; the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and it has a fixed deviation ⁇ F;
  • the frequency domain deviation ⁇ F is predetermined or notified through signaling.
  • the second mapping relationship is based on the mapping of PRACH time-frequency resources to ⁇ PUSCH time-frequency resources, PUSCH DMRS ⁇ .
  • mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • the third mapping relationship is the mapping from ⁇ Preamble index, PRACH time-frequency resource ⁇ to ⁇ PUSCH time-frequency resource, PUSCH DMRS ⁇ considering the SSB to RO mapping condition.
  • the method may further include:
  • mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process is sent to the terminal through broadcast signaling or radio resource control signaling.
  • the network device uses the broadcast message SIB1 (System Information Block1, the first system information block) to notify; for the UE connected in the RRC_CONNECTED state, RRC signaling is used to notify.
  • SIB1 System Information Block1, the first system information block
  • the method may further include:
  • the network device (such as the base station) performs PRACH Preamble detection on the candidate PRACH time-frequency resources based on the PRACH Preamble related information notified to the UE of the two-step random access process.
  • the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index selected by the terminal are obtained according to the mapping relationship;
  • the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the Preamble selected by the terminal can be accurately obtained.
  • PUSCH channel detection is performed.
  • the method may further include:
  • the information transmission method of the embodiment of the present disclosure receives the message A sent by the terminal based on the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process; wherein, the Preamble parameter includes: Preamble index and physical random access channel PRACH time-frequency resources.
  • the PUSCH parameters include: PUSCH time-frequency resources and PUSCH demodulation reference signal DMRS. In this way, the correctness of the two-step random access process can be guaranteed to achieve Effectively reduce the control plane processing delay effect of uplink multi-beam physical random access channel transmission.
  • the embodiment of the present disclosure also provides a terminal, including: a memory 1620, a processor 1600, a transceiver 1610, a bus interface, and a computer program stored on the memory 1620 and running on the processor 1600,
  • the processor 1600 is configured to read a program in the memory 1620 and execute the following process:
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1600 and various circuits of the memory represented by the memory 1620 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the transceiver 1610 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the user interface 1630 may also be an interface capable of connecting externally and internally with the required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.
  • the processor 1600 is responsible for managing the bus architecture and general processing, and the storage 1620 can store data used by the processor 1600 when performing operations.
  • mapping relationship includes at least one of the following:
  • the mapping relationship includes a first mapping relationship
  • the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • mapping relationship includes a second mapping relationship
  • the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • the mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • processor 1600 may also implement the following steps when executing the computer program:
  • the mapping relationship between the Preamble parameter and the PUSCH parameter in the message A is obtained.
  • processor 1600 may also implement the following steps when executing the computer program:
  • the message A is sent to the network device.
  • processor 1600 may also implement the following steps when executing the computer program:
  • mapping relationship determine the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index
  • the message A is sent to the network device.
  • the transceiver 1610 is used to:
  • an embodiment of the present disclosure also provides a terminal, including:
  • the first sending module 1701 is configured to send the message A to the network device according to the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process;
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • mapping relationship includes at least one of the following:
  • the mapping relationship includes a first mapping relationship
  • the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • mapping relationship includes a second mapping relationship
  • the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • the mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • the second receiving module is configured to receive broadcast signaling or radio resource control RRC signaling sent by network equipment;
  • the obtaining module is configured to obtain the mapping relationship between the Preamble parameter and the PUSCH parameter in the message A according to the broadcast signaling or the RRC signaling.
  • the first sending module 1701 may include:
  • a processing unit configured to determine a target PUSCH time-frequency resource and a target PUSCH DMRS for sending the message A according to the mapping relationship;
  • the sending unit is configured to send the message A to the network device based on the target PUSCH time-frequency resource and the target PUSCH DMRS.
  • the processing unit is specifically configured to:
  • mapping relationship determine the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index
  • the sending unit is specifically configured to:
  • the message A is sent to the network device.
  • the third receiving module is used to receive the random access response message sent by the network device.
  • the terminal of the embodiment of the present disclosure sends the message A to the network device according to the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process through the first sending module;
  • the Preamble parameters include: Preamble index and physical random access channel PRACH time-frequency resources.
  • the PUSCH parameters include: PUSCH time-frequency resources and PUSCH demodulation reference signal DMRS.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • an embodiment of the present disclosure also provides a network device, including: a transceiver 1810, a memory 1820, a processor 1800, and a computer program stored in the memory and running on the processor.
  • the transceiver 1810 is used for :
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1800 and various circuits of the memory represented by the memory 1820 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the transceiver 1810 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the processor 1800 is responsible for managing the bus architecture and general processing, and the memory 1820 can store data used by the processor 1800 when performing operations.
  • mapping relationship includes at least one of the following:
  • the mapping relationship includes a first mapping relationship
  • the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • mapping relationship includes a second mapping relationship
  • the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • the mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • the transceiver 1810 is also used to:
  • mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process is sent to the terminal through broadcast signaling or radio resource control signaling.
  • the processor 1800 implements the following steps when executing the computer program:
  • the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index selected by the terminal are obtained according to the mapping relationship;
  • PUSCH channel detection is performed.
  • the transceiver 1810 is also used to:
  • an embodiment of the present disclosure also provides a network device, including:
  • the first receiving module 1901 is configured to receive the message A sent by the terminal based on the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process;
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • mapping relationship includes at least one of the following:
  • the mapping relationship includes a first mapping relationship
  • the first mapping relationship includes:
  • One Preamble index is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • N Preamble indexes are mapped to one PUSCH time-frequency resource, and each Preamble index is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource;
  • Preamble indexes are mapped to one PUSCH DMRS on one PUSCH time-frequency resource; or,
  • K Preamble indexes are mapped to one PUSCH time-frequency resource, the K Preamble indexes are divided into L first index groups, and each of the first index groups is respectively mapped to one PUSCH DMRS on the mapped PUSCH time-frequency resource , Each of the first index groups includes at least one preamble index;
  • N, M, and K are all positive integers greater than 1, and L is a positive integer greater than or equal to 1.
  • mapping relationship includes a second mapping relationship
  • the second mapping relationship includes:
  • T PRACH time-frequency resources are mapped to one PUSCH DMRS on one PUSCH time-frequency resource, and T is a positive integer greater than 1; or,
  • One PRACH time-frequency resource is mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the relationship between the PRACH time-frequency resource and the PUSCH time-frequency resource includes:
  • the bandwidth in the frequency domain is the same, and the starting physical resource block PRB positions are aligned; or,
  • the bandwidth is different in the frequency domain, and the center PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, and the starting PRB position is aligned; or,
  • the bandwidth is different in the frequency domain, the starting PRB position is not aligned, and has a fixed frequency domain deviation ⁇ F, and a fixed time deviation ⁇ T in the time domain.
  • the mapping relationship includes a third mapping relationship
  • the third mapping relationship includes:
  • 1/Y ROs are mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • One RO is mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • Preamble indexes in one RO are mapped to one PUSCH time-frequency resource and one PUSCH DMRS;
  • the third mapping relationship includes:
  • R consecutive preamble indexes for contention-based random access CBRA are associated with the first SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS; or,
  • the S Preamble indexes are divided into F second index groups, and each of the second index groups is respectively associated with an SSB and mapped to one PUSCH time-frequency resource and one PUSCH DMRS, and each second index group includes at least A continuous CBRA-based Preamble index;
  • Y is less than 1
  • Q, H, and F are positive integers greater than or equal to 1
  • W, R, and S are positive integers greater than 1.
  • the second sending module is used to send the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process to the terminal through broadcast signaling or radio resource control signaling.
  • the first detection module is configured to perform PRACH Preamble detection on the PRACH time-frequency resource
  • the processing module obtains the target PUSCH time-frequency resource and the target PUSCH DMRS corresponding to the target PRACH time-frequency resource and/or the target Preamble index selected by the terminal according to the mapping relationship;
  • the second detection module is configured to perform PUSCH channel detection based on the target PUSCH time-frequency resource and the target PUSCH DMRS.
  • the third sending module is configured to send a random access response message to the terminal.
  • the network device of the embodiment of the present disclosure receives the message A sent by the terminal based on the mapping relationship between the preamble parameter and the physical uplink shared channel PUSCH parameter in the message A of the two-step random access process through the first receiving module; wherein, the Preamble Parameters include: Preamble index and physical random access channel PRACH time-frequency resources.
  • the PUSCH parameters include: PUSCH time-frequency resources and PUSCH demodulation reference signal DMRS.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:
  • the Preamble parameter includes: a preamble index Preamble index and a physical random access channel PRACH time-frequency resource
  • the PUSCH parameter includes: a PUSCH time-frequency resource and a PUSCH demodulation reference signal DMRS.
  • Computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology.
  • the information can be computer-readable instructions, data structures, program modules, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.
  • terminals described in this specification include but are not limited to smart phones, tablet computers, etc., and many of the described functional components are referred to as modules, in order to more particularly emphasize the independence of their implementation methods.
  • an identified executable code module may include one or more physical or logical blocks of computer instructions, for example, it may be constructed as an object, process, or function. Nevertheless, the executable code of the identified module does not need to be physically located together, but can include different instructions stored in different bits. When these instructions are logically combined together, they constitute a module and implement the requirements of the module. purpose.
  • the executable code module may be a single instruction or many instructions, and may even be distributed on multiple different code segments, distributed in different programs, and distributed across multiple memory devices.
  • operational data can be identified within the module, and can be implemented in any suitable form and organized in any suitable type of data structure. The operating data may be collected as a single data set, or may be distributed in different locations (including on different storage devices), and at least partly may only exist as electronic signals on the system or network.
  • the module can be realized by software, taking into account the level of hardware technology in the related technology, so the module can be realized by software, regardless of cost, those skilled in the art can build the corresponding hardware circuit to achieve the corresponding Functionally, the hardware circuit includes conventional very large-scale integrated (VLSI) circuits or gate arrays, and semiconductors or other discrete components in related technologies such as logic chips and transistors. Modules can also be implemented with programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, etc.
  • VLSI very large-scale integrated
  • programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, etc.
  • modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in the present disclosure.
  • ASICs application specific integrated circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD Programmable Logic Device
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • 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

本公开提供一种信息传输方法、装置及设备。该方法包括:根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。

Description

信息传输方法、装置及设备
相关申请的交叉引用
本申请主张在2019年2月14日在中国提交的中国专利申请No.201910115175.X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,特别是指一种信息传输方法、装置及设备。
背景技术
相关技术中的长期演进(Long Term Evolutionary,LTE)协议采用四步随机接入过程,对于第5代移动通信系统(5G)新空口(New Radio,NR)中的上行多波束(multi-beam)物理随机接入信道(Physical Random Access CHannel,PRACH)传输存在控制面时延较大的问题,无法满足针对低时延高可靠(Ultra-Reliable and Low Latency Communications,URLLC)场景定义的低时延的性能指标。为了有效降低控制面处理时延的处理方法,相关技术中的NR的Rel-16已经成立了针对两步随机接入过程的WI立项。
如图1所示,为NR两步随机接入过程的示意图。与四步随机接入过程的差异在于消息A(MsgA)同时发送了前导码(Preamble)和数据,其中,数据承载的内容对应于四步随机接入过程中的消息3(Msg3)的内容,该数据基于PUSCH信道结构。基于此,如何保证两步随机接入过程的正确性成为了目前亟待解决的问题。
发明内容
本公开的目的是提供一种信息传输方法、装置及设备,用以如何保证两步随机接入过程的正确性的问题。
为达到上述目的,本公开的实施例提供一种信息传输方法,应用于终端,包括:
根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享 信道PUSCH参数的映射关系,向网络设备发送所述消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
其中,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
其中,所述映射关系包括第一映射关系;
所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
其中,所述映射关系包括第二映射关系;
所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
其中,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
其中,所述根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A之前,所述方法还包括:
接收网络设备发送的广播信令或无线资源控制RRC信令;
根据所述广播信令或所述RRC信令,得到所述消息A中Preamble参数与PUSCH参数的映射关系。
其中,所述根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A,包括:
根据所述映射关系,确定用于发送所述消息A的目标PUSCH时频资源和目标PUSCH DMRS;
基于所述目标PUSCH时频资源和所述目标PUSCH DMRS,向网络设备发送所述消息A。
其中,所述根据所述映射关系,确定用于发送所述消息A的目标PUSCH时频资源和目标PUSCH DMRS,包括:
获取包括PRACH时频资源和Preamble index的配置资源集合;
在所述配置资源集合内,选择一个目标PRACH时频资源和一个目标Preamble index;
根据所述映射关系,确定与所述目标PRACH时频资源和/或所述目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
所述基于所述目标PUSCH时频资源和所述目标PUSCH DMRS,向网络设备发送所述消息A,包括:
基于所述目标PRACH时频资源、所述目标Preamble index、所述目标PUSCH时频资源以及所述目标PUSCH DMRS,向网络设备发送所述消息A。
其中,根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A之后,所述方法还包括:
接收网络设备发送的随机接入响应消息。
为了实现上述目的,本公开实施例还提供一种信息传输方法,应用于网络设备,包括:
接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和 PUSCH解调参考信号DMRS。
其中,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
其中,所述映射关系包括第一映射关系;
所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
其中,所述映射关系包括第二映射关系;
所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
其中,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
其中,接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A之前,所述方法还包括:
通过广播信令或无线资源控制信令,向终端发送两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系。
其中,接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A之后,所述方法 还包括:
在所述PRACH时频资源上进行PRACH Preamble检测;
若检测到Preamble,则根据所述映射关系,得到与所述终端所选择的目标PRACH时频资源和/或目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
基于所述目标PUSCH时频资源和目标PUSCH DMRS,进行PUSCH信道检测。
其中,接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A之后,所述方法还包括:
向所述终端发送随机接入响应消息。
为了实现上述目的,本公开实施例还提供一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序;所述处理器执行所述程序时实现以下步骤:
根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
其中,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
其中,所述映射关系包括第一映射关系;
所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
其中,所述映射关系包括第二映射关系;
所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
其中,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
其中,所述处理器执行所述程序时还实现以下步骤:
接收网络设备发送的广播信令或无线资源控制RRC信令;
根据所述广播信令或所述RRC信令,得到所述消息A中Preamble参数与PUSCH参数的映射关系。
其中,所述处理器执行所述程序时还实现以下步骤:
根据所述映射关系,确定用于发送所述消息A的目标PUSCH时频资源和目标PUSCH DMRS;
基于所述目标PUSCH时频资源和所述目标PUSCH DMRS,向网络设备发送所述消息A。
其中,所述处理器执行所述程序时还实现以下步骤:
获取包括PRACH时频资源和Preamble index的配置资源集合;
在所述配置资源集合内,选择一个目标PRACH时频资源和一个目标Preamble index;
根据所述映射关系,确定与所述目标PRACH时频资源和/或所述目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
基于所述目标PRACH时频资源、所述目标Preamble index、所述目标PUSCH时频资源以及所述目标PUSCH DMRS,向网络设备发送所述消息A。
其中,所述收发机用于:
接收网络设备发送的随机接入响应消息。
为了实现上述目的,本公开实施例还提供一种终端,包括:
第一发送模块,用于根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
为了实现上述目的,本公开实施例还提供一种网络设备,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序;所述收发机用于:
接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
其中,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
其中,所述映射关系包括第一映射关系;
所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH  DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
其中,所述映射关系包括第二映射关系;
所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
其中,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
其中,所述收发机还用于:
通过广播信令或无线资源控制信令,向终端发送两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系。
其中,所述处理器执行所述程序时实现以下步骤:
在所述PRACH时频资源上进行PRACH Preamble检测;
若检测到Preamble,则根据所述映射关系,得到与所述终端所选择的目标PRACH时频资源和/或目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
基于所述目标PUSCH时频资源和目标PUSCH DMRS,进行PUSCH信道检测。
其中,所述收发机还用于:
向所述终端发送随机接入响应消息。
为了实现上述目的,本公开实施例还提供一种网络设备,包括:
第一接收模块,用于接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
为了实现上述目的,本公开实施例还提供一种计算机可读存储介质,其上存储有计算程序,该计算机程序被处理器执行时实现如上述所述的信息传输方法,或者如上述所述的信息传输方法的步骤。
本公开的上述技术方案至少具有如下有益效果:
本公开实施例的上述技术方案中,通过根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS,如此,能够保证两步随机接入过程的正确性,从而达到有效降低上行多波束物理随机接入信道传输的控制面处理时延的效果。
附图说明
图1为相关技术中两步随机接入过程的流程示意图;
图2为本公开实施例的信息传输方法的流程示意图之一;
图3为CP-OFDM波形下PUSCH DMRS端口的配置类型示意图;
图4为本公开实施例中第一映射关系的映射示意图之一;
图5为本公开实施例中第一映射关系的映射示意图之二;
图6为本公开实施例中第一映射关系的映射示意图之三;
图7为本公开实施例中第一映射关系的映射示意图之四;
图8为本公开实施例中第一映射关系的映射示意图之五;
图9为本公开实施例中第二映射关系的映射示意图之一;
图10为本公开实施例中第二映射关系的映射示意图之二;
图11为NR定义的PRACH Preamble格式0以及子载波间隔为15KHz的PUSCH信道结构示意图;
图12为本公开实施例中第二映射关系的映射示意图之三;
图13为本公开实施例中第二映射关系的映射示意图之四;
图14为本公开实施例中第二映射关系的映射示意图之五;
图15为本公开实施例的信息传输方法的流程示意图之二;
图16为本公开实施例的终端的结构框图;
图17为本公开实施例的终端的模块示意图;
图18为本公开实施例的网络设备的结构框图;
图19为本公开实施例的网络设备的模块示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。
如图2所示,为本公开实施例提供了一种信息传输方法,应用于终端,包括:
步骤201:根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
本步骤中,两步随机接入过程的消息A中Preamble参数与PUSCH参数的映射关系由协议预先定义或者网络配置。
需要说明的是,消息A中的Preamble和PUSCH(Physical Uplink Shared Channel,物理上行共享信道)使用相同的发送波束方向。
下面就图3所示的CP-OFDM(Cyclic Prefix-Orthogonal Frequency Division Multiplexing,循环前缀-正交频分复用)波形下PUSCH DMRS端口的配置类型示意图,具体说明与PUSCH DMRS端口有关的参数。
这里,该图具体针对NR定义的CP-OFDM波形下PUSCH DMRS端口的配置类型1,以时域上占用2个OFDM符号为例,此时,最大可支持的DMRS正交端口个数是8。如图3所示,端口0、1、4、5共享相同的时频资源,端口2、3、6、7共享相同的时频资源,端口0/1/4/5和端口2/3/6/7之间采用频分复用方式区分。
FD-OCC(Frequency domain Orthogonal Cover Code,频域正交掩码)表示在频域上间隔一个RE(Resource Element,资源单元)的两个RE之间采用正交扩频码进行频域复用;TD-OCC(Time domain Orthogonal Cover Code,时域正交掩码)表示在时域上相邻的两个OFDM符号之间采用正交扩频码进行时域复用。
这里,端口0、1、4、5共享相同的时频资源,频域占用一个PRB(Physical Resource Block,物理资源块)内的偶数号RE,时域占用2个OFDM符号,进一步通过长度为2的FD-OCC和TD-OCC区分。具体表示如下:
端口0:FD-OCC{1,1}+TD-OCC{1,1};
端口1:FD-OCC{1,-1}+TD-OCC{1,1};
端口4:FD-OCC{1,1}+TD-OCC{1,-1};
端口5:FD-OCC{1,-1}+TD-OCC{1,-1};
端口2、3、6、7共享相同的时频资源,频域占用一个PRB内的奇数号RE,时域占用2个OFDM符号,进一步通过长度为2的FD-OCC和TD-OCC区分。具体表示如下:
端口2:FD-OCC{1,1}+TD-OCC{1,1};
端口3:FD-OCC{1,-1}+TD-OCC{1,1};
端口6:FD-OCC{1,1}+TD-OCC{1,-1};
端口7:FD-OCC{1,-1}+TD-OCC{1,-1}。
由此可见,PUSCH DMRS(Demodulation Reference Signals,解调参考信号)端口包括OCC(Orthogonal Cover Code,正交掩码)参数。
本公开实施例的信息传输方法,通过根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS,如此,能够保证两步随机接入过程的正确性,从而达到有效降低上行多波束物理随机接入信道传输的控制面处理时延的效果。
基于图2所示的实施例,可选地,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
具体的,所述映射关系包括第一映射关系;所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
这里,所述第一映射关系是基于Preamble index到{PUSCH时频资源,PUSCH DMRS}的映射。
需要说明的是,由于基站在接收MsgA时,首先需基于Preamble做UE激活检测,之后基于检测到的Preamble唯一地确定PUSCH信道,然后再检测PUSCH信道。为了使基站能够基于检测到的Preamble唯一地确定PUSCH信道,避免模糊检测的问题出现,Preamble index到{PUSCH时频资源,PUSCH DMRS}的映射只能是一到一,和N1(其中,N1是大于1的正整数)到1,而不能是1到多。
还有,N1个Preamble index到1个PUSCH时频资源映射中的N1个Preamble index可以是同一个Zadoff-Chu(ZC)根序列包含的N1个Preamble index,也可以是连续编号的任意N1个Preamble index。
下面就一些示例具体说明上述第一映射关系。
示例一、一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS,即一个Preamble index到{PUSCH时频资源,PUSCH DMRS}
如图4所示,Preamble#0映射到{PUSCH#0,DMRS#0}的组合,Preamble#1映射到{PUSCH#0,DMRS#1}的组合。
如图5所示,Preamble#0映射到{PUSCH#0,DMRS#0}的组合,Preamble#1 映射到{PUSCH#1,DMRS#1}的组合。
其中,Preamble#0和Preamble#1分别表示编号为0和1的Preamble索引值,PUSCH#0和PUSCH#1表示编号为0和1的PUSCH时频资源,DMRS#0和DMRS#1分别表示编号为0和1的PUSCH DMRS。
示例二、N1个Preamble index到1个{PUSCH时频资源,PUSCH DMRS}
需要说明的是,在Rel-15NR协议中,一个PRACH时频资源上支持64个Preamble index,因此,1<N1<64,并且参数N1的取值需要考虑SSB(Synchronization Signal Block,同步信号块)到PRACH时频资源RO(随机接入时机,RACH Occasion))的映射。当N1个Preamble index映射到1个PUSCH时频资源,需要进一步考虑N1个Preamble index到PUSCH DMRS的映射。
情况1:如图6所示,编号为0到3的Preamble索引值(Preamble#0/1/2/3)同时映射到编号为0的PUSCH时频资源(PUSCH#0),并且四个Preamble索引(Preamble#0/1/2/3)分别一一映射到四个DMRS(DMRS#0/1/2/3);
编号为4到7的Preamble索引值(Preamble#4/5/6/7)同时映射到编号为1的PUSCH时频资源(PUSCH#1),并且四个Preamble索引(Preamble#4/5/6/7)分别一一映射到四个DMRS(DMRS#0/1/2/3)。
这样在编号为0和1的PUSCH时频资源(PUSCH#0和#1)上,都可以支持4个UE的上行虚拟MU-MIMO(Multi-User Multiple-Input Multiple-Output,多用户多输入多输出)。也就是说,一个Preamble index映射到1个PUSCH DMRS,在一个PUSCH时频资源上可以支持N1个用户,即支持N1个用户的上行虚拟MU-MIMO。
情况2:如图7所示,N1=4,编号为0到3的Preamble索引值(Preamble#0/1/2/3)同时映射到编号为0的PUSCH时频资源(PUSCH#0),并且四个Preamble索引(Preamble#0/1/2/3)同时映射到编号为0的DMRS(DMRS#0);
编号为4到7的Preamble索引值(Preamble#4/5/6/7)同时映射到编号为1的PUSCH时频资源(PUSCH#1),并且四个Preamble索引(Preamble#4/5/6/7)同时映射到编号为0的DMRS(DMRS#0)。
这样在编号为0和1的PUSCH时频资源(PUSCH#0和#1)上,都可以支持1个UE的上行PUSCH发送。
情况3:ceil(N1/T)个Preamble index到1个PUSCH的DMRS(即将N1个preamble index进一步分为T个子组,每组有N1/T的preamble index),则在一个PUSCH时频资源上可以支持ceil(N1/T)个用户,即支持ceil(N1/T)个用户的上行虚拟MU-MIMO。其中,T为大于等于1的正整数。需要说明的是,ceil()为向上取整函数。
如图8所示,N1=4,T=2,编号为0到3的Preamble索引值(Preamble#0/1/2/3)同时映射到编号为0的PUSCH时频资源(PUSCH#0),并且2个Preamble索引(Preamble#0和#1)映射到DMRS#0,2个Preamble索引(Preamble#2和#3)映射到DMRS#1;编号为4到7的Preamble索引值(Preamble#4/5/6/7)同时映射到编号为1的PUSCH时频资源(PUSCH#1),并且2个Preamble索引(Preamble#4和#5)映射到DMRS#0,2个Preamble索引(Preamble#6和#7)映射到DMRS#1。这样在编号为0和1的PUSCH时频资源(PUSCH#0和#1)上,都可以支持2个UE的上行虚拟MU-MIMO。
具体的,所述映射关系包括第二映射关系;所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
需要说明的是,所述频域偏差ΔF由协议预先定义或者通过信令通知;所述时间偏差ΔT由协议预先定义或者通过信令通知。
这里,所述第二映射关系是基于PRACH时频资源到{PUSCH时频资源, PUSCH DMRS}的映射。
需要说明的是,由于基站在接收MsgA时,首先需基于Preamble做UE激活检测,之后基于检测到的Preamble唯一地确定PUSCH信道,然后再检测PUSCH信道。为了使基站能够基于检测到的Preamble唯一地确定PUSCH信道,避免模糊检测的问题出现,PRACH时频资源到{PUSCH时频资源,PUSCH DMRS}的映射只能是一到一,和N2(其中,N2是大于1的正整数)到1,而不能是1到多。
下面就一些示例具体说明上述第二映射关系。
示例一、一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS,即一个PRACH时频资源到{PUSCH时频资源,PUSCH DMRS}
如图9所示,PRACH#0映射到{PUSCH#0,DMRS#0}的组合,PRACH#1映射到{PUSCH#0,DMRS#1}的组合。
如图10所示,PRACH#0映射到{PUSCH#0,DMRS#0}的组合,PRACH#1映射到{PUSCH#1,DMRS#1}的组合。
其中,PRACH#0和PRACH#1分别表示编号为0和1的PRACH时频资源,PUSCH#0和PUSCH#1表示编号为0和1的PUSCH时频资源,DMRS#0和DMRS#1分别表示编号为0和1的PUSCH DMRS。
需要说明的是,Rel-15NR定义的PRACH Preamble格式0以及子载波间隔(subcarrier spacing,SCS)为15KHz的PUSCH信道结构分别如图11所示。以此为参考,更具体的,所述PRACH时频资源与所述PUSCH时频资源的关系,如图12所示,包括:
(a)频域上带宽相同,起始物理资源块PRB位置对齐;(b)频域上带宽不同,中心PRB位置对齐;(c)频域上带宽不同,起始PRB位置对齐。
另外,如图13所示,所述PRACH时频资源与所述PUSCH时频资源的关系,还可包括:
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
需要说明的是,所述频域偏差ΔF由协议预先定义或者通过信令通知;所 述时间偏差ΔT由协议预先定义或者通过信令通知。
这里,如图12所示的PRACH时频资源与PUSCH时频资源的关系中时域上连续的,不存在时间偏差。而如图13所示的PRACH时频资源与PUSCH时频资源的关系中PRACH时频资源的起始PRB位置与PUSCH时频资源的起始PRB位置在频域上具有固定的频域偏差ΔF,并且在时域上MsgA中的Preamble时频资源的结束时刻与MsgA中的PUSCH时频资源的起始时刻之间具有固定的时间偏差ΔT,且ΔT不为0。
示例二、N2个PRACH时频资源映射到1个{PUSCH时频资源,PUSCH DMRS}
如图14所示,N2=4,编号为0到3的PRACH时频资源(PRACH#0/1/2/3)同时映射到编号为0的PUSCH时频资源(PUSCH#0),并且四个PRACH时频资源(PRACH#0/1/2/3)同时映射到编号为0的DMRS(DMRS#0);
编号为4到7的PRACH时频资源(PRACH#4/5/6/7)同时映射到编号为1的PUSCH时频资源(PUSCH#1),并且四个PRACH时频资源(PRACH#4/5/6/7)同时映射到编号为0的DMRS(DMRS#0)。
这样在编号为0和1的PUSCH时频资源(PUSCH#0和#1)上,都可以支持1个UE的上行虚拟MU-MIMO。
具体的,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
这里,所述第三映射关系是考虑到SSB到RO映射条件下,{Preamble index,PRACH时频资源}到{PUSCH时频资源,PUSCH DMRS}的映射。
需要说明的是,在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,当所述第三映射关系包括:一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS时,可选地,Q的取值范围从1到64的正整数,可选地,Q的取值为2或者4的整倍数。
另外,需要解释的是,在W个SSB映射到一个RO的情况下,所述第三映射关系包括:S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index。
也就是说,将fix(S/F)个连续的基于CBRA的Preamble index与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMR。需要说明的是,fix(x)为一取整函数,直接取x的整数部分。
基于图2所示的实施例,作为一可选的实现方式,在步骤201之前,所述方法还可包括:
接收网络设备发送的广播信令或无线资源控制RRC信令;
根据所述广播信令或所述RRC信令,得到所述消息A中Preamble参数与PUSCH参数的映射关系。
基于图2所示的实施例,作为一可选的实现方式,步骤201可具体包括:
根据所述映射关系,确定用于发送所述消息A的目标PUSCH时频资源和目标PUSCH DMRS;
本步骤具体还可以包括:
获取包括PRACH时频资源和Preamble index的配置资源集合;
这里,具体地,配置资源集合通过接收网络设备发送的广播消息获取。也就是说,网络设备通过广播消息通知终端包括PRACH时频资源和Preamble index的配置资源集合。
在所述配置资源集合内,选择一个目标PRACH时频资源和一个目标Preamble index;
需要说明的是,在配置资源集合内,可根据等概率准则随机选择一个目标PRACH时频资源和一个目标Preamble index。
根据所述映射关系,确定与所述目标PRACH时频资源和/或所述目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS。
基于所述目标PUSCH时频资源和所述目标PUSCH DMRS,向网络设备发送所述消息A。
这里,基于其上一步骤中的具体实施步骤,进一步地,本步骤还可包括:
基于所述目标PRACH时频资源、所述目标Preamble index、所述目标PUSCH时频资源以及所述目标PUSCH DMRS,向网络设备发送所述消息A。
基于图2所示的实施例,作为一可选的实现方式,在步骤201之后,所述方法还可包括:
接收网络设备发送的随机接入响应消息。
本公开实施例的信息传输方法,通过根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS,如此,能够保证两步随机接入过程的正确性,从而达到有效降低上行多波束物理随机接入信道传输的控制面处理时延的效果。
如图15所示,为本公开实施例提供一种信息传输方法,应用于网络设备,包括:
步骤1501:接收终端基于两步随机接入过程的消息A中前导码Preamble 参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
本步骤中,两步随机接入过程的消息A中Preamble参数与PUSCH参数的映射关系由协议预先定义或者网络配置。
本公开实施例的信息传输方法,通过接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS,如此,能够保证两步随机接入过程的正确性,从而达到有效降低上行多波束物理随机接入信道传输的控制面处理时延的效果。
可选地,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
具体的,所述映射关系包括第一映射关系;所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个 Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
这里,所述第一映射关系是基于Preamble index到{PUSCH时频资源,PUSCH DMRS}的映射。
具体的,所述映射关系包括第二映射关系;所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,具有固定的偏差ΔF;
其中,频域偏差ΔF预先给定或者通过信令通知。
时域上具有固定的偏差ΔT;其中,偏差ΔT预先给定或者通过信令通知。
这里,所述第二映射关系是基于PRACH时频资源到{PUSCH时频资源,PUSCH DMRS}的映射。
具体的,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
这里,所述第三映射关系是考虑到SSB到RO映射条件下,{Preamble index,PRACH时频资源}到{PUSCH时频资源,PUSCH DMRS}的映射。
基于图15所示的实施例,作为一可选地实现方式,在步骤1501之前,所述方法还可包括:
通过广播信令或无线资源控制信令,向终端发送两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系。
本步骤中,对于处于空闲RRC_IDLE态和未激活RRC_INACTIVE态的UE,网络设备采用广播消息SIB1(System Information Block1,第一系统信息块)通知;对于连接RRC_CONNECTED态的UE,采用RRC信令通知。
基于图15所示的实施例,作为一可选地实现方式,在步骤1501之后,所述方法还可包括:
在所述PRACH时频资源上进行PRACH Preamble检测;
本步骤中,网络设备(如基站)基于通知给UE的两步随机接入过程的PRACH Preamble相关信息,在候选的PRACH时频资源上进行PRACH Preamble检测。
若检测到Preamble,则根据所述映射关系,得到与所述终端所选择的目标PRACH时频资源和/或目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
本步骤中,若检测到Preamble,根据所述映射关系,能够准确地得到终端选择的Preamble所对应的目标PUSCH时频资源和目标PUSCH DMRS。
基于所述目标PUSCH时频资源和目标PUSCH DMRS,进行PUSCH信 道检测。
基于图15所示的实施例,作为一可选地实现方式,在步骤1501之后,所述方法还可包括:
向所述终端发送随机接入响应消息。
本公开实施例的信息传输方法,通过接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS,如此,能够保证两步随机接入过程的正确性,从而达到有效降低上行多波束物理随机接入信道传输的控制面处理时延的效果。
如图16所示,本公开实施例还提供了一种终端,包括:存储器1620、处理器1600、收发机1610、总线接口及存储在存储器1620上并可在处理器1600上运行的计算机程序,所述处理器1600用于读取存储器1620中的程序,执行下列过程:
根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
其中,在图16中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1600代表的一个或多个处理器和存储器1620代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1610可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口1630还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1600负责管理总线架构和通常的处理,存储1620可以存储处理 器1600在执行操作时所使用的数据。
可选地,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
可选地,所述映射关系包括第一映射关系;
所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
可选地,所述映射关系包括第二映射关系;
所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
可选地,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
可选地,所述处理器1600执行所述计算机程序时还可实现以下步骤:
接收网络设备发送的广播信令或无线资源控制RRC信令;
根据所述广播信令或所述RRC信令,得到所述消息A中Preamble参数与PUSCH参数的映射关系。
可选地,所述处理器1600执行所述计算机程序时还可实现以下步骤:
根据所述映射关系,确定用于发送所述消息A的目标PUSCH时频资源和目标PUSCH DMRS;
基于所述目标PUSCH时频资源和所述目标PUSCH DMRS,向网络设备发送所述消息A。
可选地,所述处理器1600执行所述计算机程序时还可实现以下步骤:
获取包括PRACH时频资源和Preamble index的配置资源集合;
在所述配置资源集合内,选择一个目标PRACH时频资源和一个目标Preamble index;
根据所述映射关系,确定与所述目标PRACH时频资源和/或所述目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
基于所述目标PRACH时频资源、所述目标Preamble index、所述目标PUSCH时频资源以及所述目标PUSCH DMRS,向网络设备发送所述消息A。
可选地,所述收发机1610用于:
接收网络设备发送的随机接入响应消息。
如图17所示,本公开实施例还提供了一种终端,包括:
第一发送模块1701,用于根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
可选地,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
可选地,所述映射关系包括第一映射关系;
所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
可选地,所述映射关系包括第二映射关系;
所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
可选地,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
本实施例的终端,还可包括:
第二接收模块,用于接收网络设备发送的广播信令或无线资源控制RRC信令;
获取模块,用于根据所述广播信令或所述RRC信令,得到所述消息A中Preamble参数与PUSCH参数的映射关系。
本实施例的终端,所述第一发送模块1701可包括:
处理单元,用于根据所述映射关系,确定用于发送所述消息A的目标PUSCH时频资源和目标PUSCH DMRS;
发送单元,用于基于所述目标PUSCH时频资源和所述目标PUSCH DMRS,向网络设备发送所述消息A。
本实施例的终端,所述处理单元具体用于:
获取包括PRACH时频资源和Preamble index的配置资源集合;
在所述配置资源集合内,选择一个目标PRACH时频资源和一个目标Preamble index;
根据所述映射关系,确定与所述目标PRACH时频资源和/或所述目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
相应地,所述发送单元具体用于:
基于所述目标PRACH时频资源、所述目标Preamble index、所述目标 PUSCH时频资源以及所述目标PUSCH DMRS,向网络设备发送所述消息A。
本实施例的终端,还包括:
第三接收模块,用于接收网络设备发送的随机接入响应消息。
本公开实施例的终端,通过第一发送模块根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS,如此,能够保证两步随机接入过程的正确性,从而达到有效降低上行多波束物理随机接入信道传输的控制面处理时延的效果。
在本公开的一些实施例中,还提供了一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现以下步骤:
根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
该程序被处理器执行时能实现上述应用于如图2~14所示的终端侧的方法实施例中的所有实现方式,为避免重复,此处不再赘述。
如图18所示,本公开实施例还提供一种网络设备,包括:收发机1810、存储器1820、处理器1800及存储在存储器上并可在处理器上运行的计算机程序,收发机1810用于:
接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
其中,在图18中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1800代表的一个或多个处理器和存储器1820代表的存储器的各种 电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1810可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器1800负责管理总线架构和通常的处理,存储器1820可以存储处理器1800在执行操作时所使用的数据。
可选地,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
可选地,所述映射关系包括第一映射关系;
所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
可选地,所述映射关系包括第二映射关系;
所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
可选地,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
可选地,所述收发机1810还用于:
通过广播信令或无线资源控制信令,向终端发送两步随机接入过程的消 息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系。
可选地,所述处理器1800执行所述计算机程序时实现以下步骤:
在所述PRACH时频资源上进行PRACH Preamble检测;
若检测到Preamble,则根据所述映射关系,得到与所述终端所选择的目标PRACH时频资源和/或目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
基于所述目标PUSCH时频资源和目标PUSCH DMRS,进行PUSCH信道检测。
可选地,所述收发机1810还用于:
向所述终端发送随机接入响应消息。
如图19所示,本公开实施例还提供一种网络设备,包括:
第一接收模块1901,用于接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
可选地,所述映射关系包括以下至少一种:
Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
可选地,所述映射关系包括第一映射关系;
所述第一映射关系包括:
一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
可选地,所述映射关系包括第二映射关系;
所述第二映射关系包括:
T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
频域上带宽相同,起始物理资源块PRB位置对齐;或者,
频域上带宽不同,中心PRB位置对齐;或者,
频域上带宽不同,起始PRB位置对齐;或者,
频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
可选地,所述映射关系包括第三映射关系;
在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个 PUSCH DMRS;
在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
本公开实施例的网络设备,还可包括:
第二发送模块,用于通过广播信令或无线资源控制信令,向终端发送两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系。
本公开实施例的网络设备,还可包括:
第一检测模块,用于在所述PRACH时频资源上进行PRACH Preamble检测;
处理模块,若检测到Preamble,则根据所述映射关系,得到与所述终端所选择的目标PRACH时频资源和/或目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
第二检测模块,用于基于所述目标PUSCH时频资源和目标PUSCH DMRS,进行PUSCH信道检测。
本公开实施例的网络设备,还可包括:
第三发送模块,用于向所述终端发送随机接入响应消息。
本公开实施例的网络设备,通过第一接收模块接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS,如此,能够保证两步随机接入过程的正确性,从而达到有效降低上行多波束物理随机接入信道传输的控制面 处理时延的效果。
在本公开的一些实施例中,还提供了一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现以下步骤:
接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
该程序被处理器执行时能实现上述应用于如图15所示的网络设备侧的方法实施例中的所有实现方式,为避免重复,此处不再赘述。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括,但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带,磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质,可用于存储可以被计算设备访问的信息。按照本文中的界定,计算机可读介质不包括暂存电脑可读媒体(transitory media),如调制的数据信号和载波。
进一步需要说明的是,此说明书中所描述的终端包括但不限于智能手机、平板电脑等,且所描述的许多功能部件都被称为模块,以便更加特别地强调其实现方式的独立性。
本公开实施例中,模块可以用软件实现,以便由各种类型的处理器执行。举例来说,一个标识的可执行代码模块可以包括计算机指令的一个或多个物理或者逻辑块,举例来说,其可以被构建为对象、过程或函数。尽管如此,所标识模块的可执行代码无需物理地位于一起,而是可以包括存储在不同位里上的不同的指令,当这些指令逻辑上结合在一起时,其构成模块并且实现该模块的规定目的。
实际上,可执行代码模块可以是单条指令或者是许多条指令,并且甚至可以分布在多个不同的代码段上,分布在不同程序当中,以及跨越多个存储器设备分布。同样地,操作数据可以在模块内被识别,并且可以依照任何适当的形式实现并且被组织在任何适当类型的数据结构内。所述操作数据可以作为单个数据集被收集,或者可以分布在不同位置上(包括在不同存储设备上),并且至少部分地可以仅作为电子信号存在于系统或网络上。
在模块可以利用软件实现时,考虑到相关技术中的硬件工艺的水平,所以可以以软件实现的模块,在不考虑成本的情况下,本领域技术人员都可以搭建对应的硬件电路来实现对应的功能,所述硬件电路包括常规的超大规模集成(VLSI)电路或者门阵列以及诸如逻辑芯片、晶体管之类的相关技术中的半导体或者是其它分立的元件。模块还可以用可编程硬件设备,诸如现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等实现。
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,模块、单元、子模块、子单元等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。
上述范例性实施例是参考该些附图来描述的,许多不同的形式和实施例是可行而不偏离本公开精神及教示,因此,本公开不应被建构成为在此所提出范例性实施例的限制。更确切地说,这些范例性实施例被提供以使得本公开会是完善又完整,且会将本公开范围传达给那些熟知此项技术的人士。在该些图式中,组件尺寸及相对尺寸也许基于清晰起见而被夸大。在此所使用的术语只是基于描述特定范例性实施例目的,并无意成为限制用。如在此所 使用地,除非该内文清楚地另有所指,否则该单数形式“一”、“一个”和“该”是意欲将该些多个形式也纳入。会进一步了解到该些术语“包含”及/或“包括”在使用于本说明书时,表示所述特征、整数、步骤、操作、构件及/或组件的存在,但不排除一或更多其它特征、整数、步骤、操作、构件、组件及/或其族群的存在或增加。除非另有所示,陈述时,一值范围包含该范围的上下限及其间的任何子范围。
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 (37)

  1. 一种信息传输方法,应用于终端,包括:
    根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;
    其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
  2. 根据权利要求1所述的方法,其中,所述映射关系包括以下至少一种:
    Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
    PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
    Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
  3. 根据权利要求2所述的方法,其中,所述映射关系包括第一映射关系;
    所述第一映射关系包括:
    一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
    M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
    K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
    其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
  4. 根据权利要求2所述的方法,其中,所述映射关系包括第二映射关系;
    所述第二映射关系包括:
    T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
    一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
    其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
    频域上带宽相同,起始物理资源块PRB位置对齐;或者,
    频域上带宽不同,中心PRB位置对齐;或者,
    频域上带宽不同,起始PRB位置对齐;或者,
    频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
  5. 根据权利要求2所述的方法,其中,所述映射关系包括第三映射关系;
    在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
    1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
    在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
    一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
    在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
    R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
    其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
  6. 根据权利要求1所述的方法,其中,所述根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A之前,所述方法还包括:
    接收网络设备发送的广播信令或无线资源控制RRC信令;
    根据所述广播信令或所述RRC信令,得到所述消息A中Preamble参数与PUSCH参数的映射关系。
  7. 根据权利要求1所述的方法,其中,所述根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A,包括:
    根据所述映射关系,确定用于发送所述消息A的目标PUSCH时频资源和目标PUSCH DMRS;
    基于所述目标PUSCH时频资源和所述目标PUSCH DMRS,向网络设备发送所述消息A。
  8. 根据权利要求7所述的方法,其中,所述根据所述映射关系,确定用于发送所述消息A的目标PUSCH时频资源和目标PUSCH DMRS,包括:
    获取包括PRACH时频资源和Preamble index的配置资源集合;
    在所述配置资源集合内,选择一个目标PRACH时频资源和一个目标Preamble index;
    根据所述映射关系,确定与所述目标PRACH时频资源和/或所述目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
    所述基于所述目标PUSCH时频资源和所述目标PUSCH DMRS,向网络设备发送所述消息A,包括:
    基于所述目标PRACH时频资源、所述目标Preamble index、所述目标PUSCH时频资源以及所述目标PUSCH DMRS,向网络设备发送所述消息A。
  9. 根据权利要求1所述的方法,其中,根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A之后,所述方法还包括:
    接收网络设备发送的随机接入响应消息。
  10. 一种信息传输方法,应用于网络设备,包括:
    接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
    其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
  11. 根据权利要求10所述的方法,其中,所述映射关系包括以下至少一种:
    Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
    PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
    Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
  12. 根据权利要求11所述的方法,其中,所述映射关系包括第一映射关系;
    所述第一映射关系包括:
    一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
    M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
    K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
    其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
  13. 根据权利要求11所述的方法,其中,所述映射关系包括第二映射关系;
    所述第二映射关系包括:
    T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
    一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
    其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
    频域上带宽相同,起始物理资源块PRB位置对齐;或者,
    频域上带宽不同,中心PRB位置对齐;或者,
    频域上带宽不同,起始PRB位置对齐;或者,
    频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
  14. 根据权利要求11所述的方法,其中,所述映射关系包括第三映射关系;
    在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
    1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
    在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
    一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
    在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
    R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
    其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大 于1的正整数。
  15. 根据权利要求10所述的方法,其中,接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A之前,所述方法还包括:
    通过广播信令或无线资源控制信令,向终端发送两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系。
  16. 根据权利要求10所述的方法,其中,接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A之后,所述方法还包括:
    在所述PRACH时频资源上进行PRACH Preamble检测;
    若检测到Preamble,则根据所述映射关系,得到与所述终端所选择的目标PRACH时频资源和/或目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
    基于所述目标PUSCH时频资源和目标PUSCH DMRS,进行PUSCH信道检测。
  17. 根据权利要求10所述的方法,其中,接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A之后,所述方法还包括:
    向所述终端发送随机接入响应消息。
  18. 一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序;其中,所述处理器执行所述程序时实现以下步骤:
    根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;
    其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
  19. 根据权利要求18所述的终端,其中,所述映射关系包括以下至少一种:
    Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
    PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
    Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
  20. 根据权利要求19所述的终端,其中,所述映射关系包括第一映射关系;
    所述第一映射关系包括:
    一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
    M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
    K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
    其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
  21. 根据权利要求19所述的终端,其中,所述映射关系包括第二映射关系;
    所述第二映射关系包括:
    T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
    一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
    其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
    频域上带宽相同,起始物理资源块PRB位置对齐;或者,
    频域上带宽不同,中心PRB位置对齐;或者,
    频域上带宽不同,起始PRB位置对齐;或者,
    频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
  22. 根据权利要求19所述的终端,其中,所述映射关系包括第三映射关系;
    在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
    1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
    在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
    一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
    在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
    R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
    其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
  23. 根据权利要求18所述的终端,其中,所述处理器执行所述程序时还实现以下步骤:
    接收网络设备发送的广播信令或无线资源控制RRC信令;
    根据所述广播信令或所述RRC信令,得到所述消息A中Preamble参数与PUSCH参数的映射关系。
  24. 根据权利要求18所述的终端,其中,所述处理器执行所述程序时还 实现以下步骤:
    根据所述映射关系,确定用于发送所述消息A的目标PUSCH时频资源和目标PUSCH DMRS;
    基于所述目标PUSCH时频资源和所述目标PUSCH DMRS,向网络设备发送所述消息A。
  25. 根据权利要求24所述的终端,其中,所述处理器执行所述程序时还实现以下步骤:
    获取包括PRACH时频资源和Preamble index的配置资源集合;
    在所述配置资源集合内,选择一个目标PRACH时频资源和一个目标Preamble index;
    根据所述映射关系,确定与所述目标PRACH时频资源和/或所述目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
    基于所述目标PRACH时频资源、所述目标Preamble index、所述目标PUSCH时频资源以及所述目标PUSCH DMRS,向网络设备发送所述消息A。
  26. 根据权利要求18所述的终端,其中,所述收发机用于:
    接收网络设备发送的随机接入响应消息。
  27. 一种终端,包括:
    第一发送模块,用于根据两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系,向网络设备发送所述消息A;
    其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
  28. 一种网络设备,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序;其中,所述收发机用于:
    接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
    其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和 PUSCH解调参考信号DMRS。
  29. 根据权利要求28所述的网络设备,其中,所述映射关系包括以下至少一种:
    Preamble index到PUSCH时频资源以及PUSCH DMRS的第一映射关系;
    PRACH时频资源到PUSCH时频资源以及PUSCH DMRS的第二映射关系;
    Preamble index和PRACH时频资源的组合到PUSCH时频资源以及PUSCH DMRS的第三映射关系。
  30. 根据权利要求29所述的网络设备,其中,所述映射关系包括第一映射关系;
    所述第一映射关系包括:
    一个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    N个Preamble index映射到一个PUSCH时频资源,每个Preamble index分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS;或者,
    M个Preamble index映射到一个PUSCH时频资源上的一个PUSCH DMRS;或者,
    K个Preamble index映射到一个PUSCH时频资源,所述K个Preamble index分为L个第一索引组,每个所述第一索引组分别映射到所映射的PUSCH时频资源上的一个PUSCH DMRS,每个所述第一索引组包括至少一个Preamble index;
    其中,N、M和K均为大于1的正整数,L为大于或者等于1的正整数。
  31. 根据权利要求29所述的网络设备,其中,所述映射关系包括第二映射关系;
    所述第二映射关系包括:
    T个PRACH时频资源映射到一个PUSCH时频资源上的一个PUSCH DMRS,T为大于1的正整数;或者,
    一个PRACH时频资源映射到一个PUSCH时频资源和一个PUSCH DMRS;
    其中,所述PRACH时频资源与所述PUSCH时频资源的关系包括:
    频域上带宽相同,起始物理资源块PRB位置对齐;或者,
    频域上带宽不同,中心PRB位置对齐;或者,
    频域上带宽不同,起始PRB位置对齐;或者,
    频域上带宽不同,起始PRB位置不对齐,且具有固定的频域偏差ΔF,时域上具有固定的时间偏差ΔT。
  32. 根据权利要求29所述的网络设备,其中,所述映射关系包括第三映射关系;
    在一个同步信号块SSB映射到1/Y个随机接入时机RO的情况下,所述第三映射关系包括:
    1/Y个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO内的Q个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
    在一个SSB映射到一个RO的情况下,所述第三映射关系包括:
    一个RO映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    一个RO内的H个Preamble index映射到一个PUSCH时频资源和一个PUSCH DMRS;
    在W个SSB映射到一个RO的情况下,所述第三映射关系包括:
    R个连续的基于竞争随机接入CBRA的Preamble index与第一SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS;或者,
    S个Preamble index分为F个第二索引组,每个所述第二索引组分别与一个SSB关联,并映射到一个PUSCH时频资源和一个PUSCH DMRS,每个所述第二索引组包括至少一个连续的基于CBRA的Preamble index;
    其中,Y小于1,Q、H、F为大于或者等于1的正整数,W、R、S为大于1的正整数。
  33. 根据权利要求28所述的网络设备,其中,所述收发机还用于:
    通过广播信令或无线资源控制信令,向终端发送两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系。
  34. 根据权利要求28所述的网络设备,其中,所述处理器执行所述程序时实现以下步骤:
    在所述PRACH时频资源上进行PRACH Preamble检测;
    若检测到Preamble,则根据所述映射关系,得到与所述终端所选择的目标PRACH时频资源和/或目标Preamble index对应的目标PUSCH时频资源和目标PUSCH DMRS;
    基于所述目标PUSCH时频资源和目标PUSCH DMRS,进行PUSCH信道检测。
  35. 根据权利要求28所述的网络设备,其中,所述收发机还用于:
    向所述终端发送随机接入响应消息。
  36. 一种网络设备,包括:
    第一接收模块,用于接收终端基于两步随机接入过程的消息A中前导码Preamble参数与物理上行共享信道PUSCH参数的映射关系发送的消息A;
    其中,所述Preamble参数包括:前导码索引Preamble index和物理随机接入信道PRACH时频资源,所述PUSCH参数包括:PUSCH时频资源和PUSCH解调参考信号DMRS。
  37. 一种计算机可读存储介质,其上存储有计算程序,其中,该计算机程序被处理器执行时实现如权利要求1至9中任一项所述的信息传输方法,或者如权利要求10至17中任一项所述的信息传输方法的步骤。
PCT/CN2020/074588 2019-02-14 2020-02-10 信息传输方法、装置及设备 WO2020164449A1 (zh)

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