CN108631971B - Information transmission method, device and system - Google Patents

Information transmission method, device and system Download PDF

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Publication number
CN108631971B
CN108631971B CN201710174978.3A CN201710174978A CN108631971B CN 108631971 B CN108631971 B CN 108631971B CN 201710174978 A CN201710174978 A CN 201710174978A CN 108631971 B CN108631971 B CN 108631971B
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frequency domain
information
domain resource
random access
sending
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CN108631971A (en
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马梦瑶
黄磊
林英沛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN202110496070.0A priority Critical patent/CN113347719A/en
Priority to CN201710174978.3A priority patent/CN108631971B/en
Priority to PCT/CN2018/079900 priority patent/WO2018171643A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

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

Abstract

The application discloses an information transmission method, device and system, and belongs to the field of communication. The method comprises the following steps: the method comprises the steps that a sending device determines L frequency domain resource clusters, wherein L is a positive integer; the sending equipment sends L kinds of information to receiving equipment through the L frequency domain resource clusters, and each frequency domain resource cluster corresponds to one kind of information; wherein each of the frequency domain resource clusters CiComprising MiA set of frequency domain resources, each of the sets of frequency domain resources comprising ki，jI is more than or equal to 1 and less than or equal to L, j is more than or equal to 1 and less than or equal to Mi，MiIs a positive integer; k is a radical ofi，jIs a positive integer; the problem that the terminal can not simultaneously send various types of information in the random access process of an NR system because the terminal only sends the random access preamble to the access network equipment is solved, and the requirement that the terminal simultaneously sends different types of information to the access network equipment in the random access process of NR is met because each frequency domain resource cluster is used for transmitting one type of information.

Description

Information transmission method, device and system
Technical Field
The present application relates to the field of communications, and in particular, to an information transmission method, apparatus, and system.
Background
In Long-Term Evolution (LTE), a User Equipment (UE) establishes communication with an evolved node B (eNB) through a random access procedure.
Specifically, an eNodeB broadcasts available Physical Random Access Channel (PRACH) resources in a system broadcast message, and when the UE randomly accesses the eNodeB, the UE selects one PRACH resource to send a Random Access Preamble (Random Access Preamble) to the eNodeB, that is, a message 1; the eNB sends a Random Access Response (Random Access Response) to the UE according to the Random Access preamble, wherein the Random Access Response carries uplink resources allocated to the UE, namely a message 2; the UE sends a message 3 to the eNB by adopting the uplink resource, wherein the message 3 carries a UE identifier; the eNB determines whether a conflict exists according to the identity of the UE, and if the conflict does not exist, a message 4 for indicating successful access is sent to the UE; and if the conflict exists, sending a message 4 for indicating the access failure to the UE.
In a New radio over the air (NR) system discussed in 3GPP, the use of a high frequency band and a low latency requirement are introduced. When information is transmitted in a high-frequency band, the gNB transmits downlink information to the UE through a Beam Forming (Beam Forming) technology, so that the defect of high path loss of a high-frequency signal in the transmission process is overcome through a narrow Beam with high antenna gain. In the random access process of a high-frequency scene, in order to enable the gNB to determine a better downlink beam direction when sending a message 2 to the UE, the UE not only needs to send a random access preamble to the eNB in a message 1 of the random access process, but also needs to feed back a downlink beam direction corresponding to the UE to the gNB; in addition, in order to meet the low latency requirement in NR, the 4-step random access procedure in LTE may be simplified into 2 steps, that is, the uplink data in message 3 in LTE is carried in message 1 and sent by UE in the random access procedure.
However, in LTE, the PRACH resource configured by the eNB for the UE can only be used for transmitting the random access preamble, and cannot meet the requirement that the UE needs to transmit multiple types of uplink information to the eNB at the same time in the NR system.
Disclosure of Invention
In order to solve the problem that the PRACH resource configured by the eNB for the UE in the LTE system can only be used for transmitting the random access preamble and cannot meet the requirement that the UE needs to transmit various uplink information to the eNB at the same time in the NR system, an embodiment of the present invention provides an information transmission method. The technical scheme is as follows:
in a first aspect, an information transmission method is provided, where the method includes:
the transmitting device determines L frequency domain resource clusters and transmits L kinds of information to the receiving device through the L frequency domain resource clusters. Wherein each frequency domain resource cluster corresponds to one information, and each frequency domain resource cluster CiComprising MiA set of frequency domain resources, each set of frequency domain resources comprising ki，jA contiguous frequency domain unit. L is a positive integer, i is more than or equal to 1 and less than or equal to L, j is more than or equal to 1 and less than or equal to Mi，MiIs a positive integer, ki，jIs a positive integer.
L kinds of information are simultaneously sent to a receiving device by using L frequency domain resource clusters in a system bandwidth, because each frequency domain resource cluster is used for transmitting one kind of information, when L is an integer larger than 1, the sending device can simultaneously send at least two kinds of information to the receiving device, when the sending device is a terminal, the receiving device is an access network device, and the terminal sends the L kinds of information in the process of accessing the access network device, the L kinds of information not only can comprise a random access preamble, but also can comprise downlink wave beam direction information and/or other uplink data of the terminal, the problem that the access network device can not obtain the downlink wave beam direction information and/or other uplink data when the terminal only sends the random access preamble to the access network device is solved, and therefore, in the random access process of an NR system, the terminal can not simultaneously send various kinds of information is solved, the method and the device meet the requirement that the terminal in the NR system simultaneously sends different types of information to the access network equipment.
Optionally, in the first aspect, when L ═ 1, the transmitting device transmits one kind of information using one frequency domain resource cluster. Such as: when the sending equipment is UE, the receiving equipment is gNB and the UE is in a connected state, if the UE needs to perform cell switching, one frequency domain resource cluster is used for sending the random access preamble. And when the L is more than or equal to 2, the sending equipment transmits at least two kinds of information by using at least two frequency domain resource clusters, wherein different frequency domain resource clusters transmit different kinds of information.
With reference to the first aspect, in a first implementation of the first aspect, the L frequency domain resource clusters include: two random access resource clusters located in a high-frequency band; at this time, the sending device sends L types of information to the receiving device through the L frequency domain resource clusters, including: the sending equipment sends a random access preamble to the receiving equipment through the first random access resource cluster; and sending the downlink beam direction information to the receiving equipment through the second random access resource cluster. The high-frequency band is a frequency band with a frequency greater than a preset frequency point, and the downlink beam direction information is used for indicating a downlink beam direction used when the receiving device sends downlink information to the sending device.
By using 2 frequency domain resource clusters in the random access process, the random access preamble and the downlink wave beam direction information are simultaneously sent to the receiving equipment, and the 2 frequency domain resource clusters are resources of a high-frequency band, so that when the terminal and the access network equipment use the resources of the high-frequency band to carry out random access, the terminal can simultaneously send the random access preamble and the downlink wave beam direction information to the access network equipment, the problem that the access network equipment cannot know the downlink wave beam direction information when sending the downlink information to the terminal if the terminal only sends the random access preamble to the access network equipment in an NR high-frequency scene is solved, and the requirement that the terminal simultaneously sends two different types of information to the access network equipment in the NR high-frequency random access process is met.
With reference to the first aspect, in a second implementation of the first aspect, the L frequency domain resource clusters include: three random access resource clusters located in a high-frequency band;
the sending device sends L kinds of information to the receiving device through L frequency domain resource clusters, including:
the sending equipment sends a random access preamble to the receiving equipment through the first random access resource cluster; sending downlink wave beam direction information to the receiving equipment through the second random access resource cluster; sending other uplink data to the receiving equipment through the third random access resource cluster;
wherein, the other uplink data includes at least one of the identifier of the sending device, control information, connection request and service data packet.
By using 3 frequency domain resource clusters to simultaneously send random access preambles, downlink beam direction information and other uplink data to receiving equipment in the random access process, wherein the 3 frequency domain resource clusters are resources of a high-frequency band, so that when a terminal and access network equipment use the resources of the high-frequency band to communicate, the terminal can simultaneously send the random access preambles, the downlink beam direction information and other uplink data to the access network equipment, the problem that the access network equipment cannot acquire the downlink beam direction information when sending the downlink information to the terminal if the terminal can only send the random access preambles to the access network equipment in the high-frequency two-step random access process of an NR system is solved, the problem that the access network equipment cannot acquire the identifier of the terminal so as to solve contention conflicts is solved, and the problem that in the high-frequency two-step random access process of the NR system is met, the requirement of sending three different types of information to the access network equipment simultaneously.
With reference to the first aspect, in a third implementation of the first aspect, the L frequency-domain resource clusters include: two random access resource clusters; the sending device sends L kinds of information to the receiving device through L frequency domain resource clusters, including: the sending equipment sends a random access preamble to the receiving equipment through the first random access resource cluster; and sending other uplink data to the receiving equipment through the second random access resource cluster.
The random access preamble and other uplink data are simultaneously sent to the receiving equipment in the random access process by using the 2 frequency domain resource clusters, so that when the terminal accesses the access network equipment through a two-step random access mode, the random access preamble and other uplink data can be simultaneously sent to the access network equipment, the access network equipment can solve the competition conflict according to the identifier of the terminal in other uplink data, the problem that the access network equipment cannot know the identifier of the terminal when the terminal only sends the random access preamble to the access network equipment, the competition conflict can be solved through four steps is solved, and the requirement that the terminal simultaneously sends two different types of information to the access network equipment in the two-step random access process of an NR system is met.
With reference to any one of the first to third implementations of the first aspect, in a fourth implementation of the first aspect, the first random access resource cluster is a random access resource cluster located in an unlicensed frequency band; the first random access resource cluster comprises a first time domain resource and a second time domain resource in a time domain; the method for sending the random access preamble to the receiving device by the sending device through the first random access resource cluster comprises the following steps: the sending equipment detects the idle channel through the first time domain resource; and when the idle channel is detected to be in an idle state, the sending equipment sends the random access preamble in the second time domain resource.
By detecting the idle channel before sending the random access preamble, the LBT requirement of the unauthorized frequency band can be met when the terminal transmits information to the access network equipment by using the unauthorized frequency band, and the normal communication between the terminal and the access network equipment in the random access process of the unauthorized frequency band is ensured.
With reference to any one of the first to fourth implementations of the first aspect, in a fifth implementation of the first aspect, the random access preamble includes one of the following forms: a cyclic prefix CP, x repeated first preamble sequences and a guard time GT, x being a positive integer; y repeated first combinations and a GT, the first combinations being combinations of a CP and a first preamble sequence, y being a positive integer; z repeated second combinations, a second combination being a combination of a CP, a first preamble sequence and a GT, z being a positive integer.
By setting three random access preamble forms, when the access network equipment configures at least two random access preambles for the terminal, the terminal can flexibly select one form from the at least two random access preamble forms to transmit the random access preamble according to the current random access scene, thereby ensuring that the terminal can select the random access preamble form suitable for the current random access scene.
With reference to the first implementation or the second implementation of the first aspect, in a sixth implementation of the first aspect, the downlink beam direction information is indicated by using an index of a second preamble sequence, and a generation manner of the second preamble sequence is the same as a generation manner of a first preamble sequence in a random access preamble.
Optionally, in a sixth implementation of the first aspect, the second preamble sequence is different from the first preamble sequence.
With reference to any one of the first aspect to the sixth implementation of the first aspect, in a seventh implementation of the first aspect, the determining, by the sending device, the L frequency domain resource clusters includes: the method comprises the steps that a sending device receives resource configuration information sent by a receiving device, wherein the resource configuration information is used for configuring N frequency domain resource clusters to at least one sending device; the sending equipment determines L frequency domain resource clusters from the N frequency domain resource clusters; or, the sending device receives resource configuration information sent by the receiving device, where the resource configuration information is used to configure L frequency domain resource clusters to the sending device; and the sending equipment determines L frequency domain resource clusters according to the resource configuration information.
The resource configuration information is sent to the terminal in a system broadcast mode through the access network equipment, so that the terminal can obtain N frequency domain resource clusters at one time, and L frequency domain resource clusters are selected from the N frequency domain resource clusters for use according to the current random access scene, and therefore the terminal can select the L frequency domain resource clusters suitable for the current random access scene.
In addition, the access network equipment sends the L frequency domain resource clusters to the terminal in a special signaling mode, so that the terminal does not need to select the L frequency domain resource clusters from the N frequency domain resource clusters, resources of the terminal are saved, and the method is suitable for a non-contention-based random access scene.
With reference to the seventh implementation of the first aspect, in an eighth implementation of the first aspect, the resource configuration information includes at least one of the following four types of information: each frequency domain resource cluster CmThe type of information sent; each frequency domain resource cluster CmThe transmission mode of (1); each frequency domain resource cluster CmM included inmA set of frequency domain resources; the starting position of each frequency domain resource set and the number k of frequency domain units included in each frequency domain resource setm，nAt least two kinds of information in an end position of each set of frequency domain resources; m is more than or equal to 1 and less than or equal to N, N is more than or equal to 1 and less than or equal to Mm，N≥L，MmIs a positive integer; k is a radical ofm，nIs a positive integer.
By configuring the four kinds of information, the resource configuration information acquired by the terminal can adapt to different random access scenarios, such as: the random access scene of the high-frequency unlicensed frequency band, the random access scene of the high-frequency licensed frequency band, the random access scene of the low-frequency unlicensed frequency band and the random access scene of the low-frequency licensed frequency band ensure that the terminal can select L frequency domain resource clusters which are suitable for the current random access scene from the resource configuration information.
With reference to the seventh implementation of the first aspect, in a ninth implementation of the first aspect, the N frequency domain resource clusters C configured by the resource configuration informationmIn (2), there is at least one frequency domain resource cluster comprising at least two sets of frequency domain resources; and/or, there is at least one frequency domain resource cluster comprising a set of frequency domain resources; and/or a first frequency domain resource cluster and a second frequency domain resource cluster exist in the N frequency domain resource clusters, and the number of frequency domain resource sets in the first frequency domain resource cluster is more than that of the frequency domain resource sets in the first frequency domain resource clusterThe number of sets of frequency domain resources in the second cluster of frequency domain resources.
By dividing the system bandwidth into different types of frequency domain resource clusters CmTherefore, different terminals can transmit information through the system bandwidth, and frequency domain resources of the system bandwidth are fully utilized.
With reference to the fifth implementation of the first aspect, in a tenth implementation of the first aspect, the determining, by the sending device, L frequency domain resource clusters includes: the sending equipment receives resource configuration information sent by the receiving equipment, wherein the resource configuration information comprises at least one of the following information: the repetition times of the first preamble sequence in the random access preamble, the length of the CP, the number of the CP, the duration of the first time domain resource, the duration of the second time domain resource, the duration of the GT, and the form of the random access preamble.
By configuring the information, the resource configuration information acquired by the terminal can adapt to different random access scenarios, such as: the random access scene of the high-frequency unauthorized frequency band, the random access scene of the high-frequency authorized frequency band, the random access scene of the low-frequency unauthorized frequency band and the random access scene of the low-frequency authorized frequency band ensure that the terminal can select the time domain resource which is suitable for the current random access from the resource configuration information.
With reference to any one of the first aspect to the tenth implementation of the first aspect, in an eleventh implementation of the first aspect, among the L types of information, there are at least two types of information that have the same transmission mode; and/or, among the L kinds of information, at least two kinds of information have different transmission modes.
With reference to the eleventh implementation of the first aspect, in a twelfth implementation of the first aspect, among the L types of information, a transmission mode in which at least one type of information exists is a first transmission mode; the first transmission mode refers to the transmission through M in the same frequency domain resource clusteriOne set of frequency domain resources transmitting MiThe same piece of information is transmitted for each set of frequency domain resources.
By MiOne set of frequency domain resources transmitting MiThe same information is used to make the transmitting device select the frequency domain resource when the channel quality is poorThe source cluster transmits the same information for many times, so that the reliability of information transmission is improved.
With reference to the eleventh implementation of the first aspect, in a thirteenth implementation of the first aspect, among the L kinds of information, a transmission mode in which at least one kind of information exists is the second transmission mode; the second transmission mode refers to the transmission through M in the same frequency domain resource clusteriThe sets of frequency domain resources collectively transmit information, each frequency domain unit transmitting a portion of the information.
By MiThe frequency domain resource sets transmit the same information, so that the sending equipment can select the frequency domain resource cluster to transmit the same type of information once when the channel quality is good, and the frequency domain resources of the system bandwidth are fully utilized.
With reference to any one of the first to thirteenth implementations of the first aspect, in a fourteenth implementation of the first aspect, there are at least two sets of frequency domain resources in the L frequency domain resource clusters that are discrete in frequency domain.
By determining that at least two frequency domain resource sets are discrete L frequency domain resource clusters in the frequency domain, when the frequency domain resource set with the span of two frequency domain units on the system bandwidth meeting the preset standard is selected by the sending equipment, the OCB requirement in information transmission in an unauthorized frequency band can be met, the times of repeatedly transmitting the same type of information by the sending equipment is reduced, and the utilization rate of the system bandwidth resources is improved.
In a second aspect, an information transmission method is provided, and the method includes: the receiving equipment receives L kinds of information sent by the sending equipment through L frequency domain resource clusters, and each frequency domain resource cluster corresponds to one kind of information; wherein each frequency domain resource cluster CiComprising MiA set of frequency domain resources, each set of frequency domain resources comprising ki，jA continuous frequency domain unit, L is a positive integer, i is more than or equal to 1 and less than or equal to L, j is more than or equal to 1 and less than or equal to Mi；MiIs a positive integer; k is a radical ofi，jIs a positive integer.
With reference to the second aspect, in a first implementation of the second aspect, the L frequency-domain resource clusters include: two random access resource clusters located in a high-frequency band; the receiving device receives the L kinds of information sent by the sending device through the L frequency domain resource clusters, including: the receiving equipment receives the random access preamble sent by the sending equipment through the first random access resource cluster; receiving downlink beam direction information sent by sending equipment through a second random access resource cluster; the high-frequency band is a frequency band with a frequency greater than a preset frequency point, and the downlink beam direction information is used for indicating a downlink beam direction used when the receiving device sends downlink information to the sending device.
With reference to the second aspect, in a second implementation of the second aspect, the L frequency domain resource clusters include: three random access resource clusters located in a high-frequency band; the receiving device receives the L kinds of information sent by the sending device through the L frequency domain resource clusters, including: the receiving equipment receives the random access preamble sent by the sending equipment through the first random access resource cluster; receiving downlink beam direction information sent by sending equipment through a second random access resource cluster; receiving other uplink data sent by the sending equipment through the third random access resource cluster; the high-frequency band is a frequency band with a frequency greater than a preset frequency point, the downlink beam direction information is used for indicating a downlink beam direction used when the receiving device sends downlink information to the sending device, and the other uplink data includes at least one of an identifier of the sending device, control information, a connection request and a service data packet.
With reference to the second aspect, in a third implementation of the second aspect, the L frequency domain resource clusters include: two random access resource clusters; the receiving device receives the L kinds of information sent by the sending device through the L frequency domain resource clusters, including: the receiving equipment receives the random access preamble sent by the sending equipment through the first random access resource cluster; receiving other uplink data sent by the sending equipment through the second random access resource cluster; wherein, the other uplink data includes at least one of the identifier of the sending device, control information, connection request and service data packet.
With reference to any one of the second aspect to the third implementation of the second aspect, in a fourth implementation of the second aspect, the first random access resource cluster is a random access resource cluster located in an unlicensed frequency band; the first random access resource cluster comprises a first time domain resource and a second time domain resource in a time domain; the receiving device receives the random access preamble sent by the sending device through the first random access resource cluster, and the method comprises the following steps: and the receiving equipment receives the random access preamble sent by the sending equipment on the second time domain resource through the second time domain resource.
With reference to any one of the second to fourth implementations of the second aspect, in a fifth implementation of the second aspect, the random access preamble includes one of the following forms: a cyclic prefix CP, x repeated first preamble sequences and a guard time GT, x being a positive integer; y repeated first combinations and a GT, the first combinations being combinations of a CP and a first preamble sequence, y being a positive integer; z repeated second combinations, a second combination being a combination of a CP, a first preamble sequence and a GT, z being a positive integer.
With reference to the first implementation of the second aspect or the second implementation of the second aspect, in a sixth implementation of the second aspect, the downlink beam direction information is indicated by using an index of a second preamble sequence, and a generation manner of the second preamble sequence is the same as a generation manner of a first preamble sequence in a random access preamble.
With reference to the second aspect to the sixth implementation of the second aspect, in a seventh implementation of the second aspect, before the receiving device receives the L types of information sent by the sending device through the L frequency domain resource clusters, the method further includes: the receiving equipment sends resource configuration information to at least one sending equipment, the resource configuration information is used for configuring N frequency domain resource clusters, and the at least one sending equipment comprises the sending equipment; or, the receiving device sends resource configuration information to the sending device, where the resource configuration information is used to configure L frequency domain resource clusters to the sending device.
With reference to the seventh implementation of the second aspect, in an eighth implementation of the second aspect, the resource configuration information includes at least one of the following four types of information: each frequency domain resource cluster CmThe type of information sent; each frequency domain resource cluster CmThe transmission mode of (1); each frequency domain resource cluster CmM included inmA set of frequency domain resources;
each one of which isThe starting position of the frequency domain resource sets, the number k of frequency domain units included in each frequency domain resource setm，nAt least two kinds of information in an end position of each set of frequency domain resources; m is more than or equal to 1 and less than or equal to N, N is more than or equal to 1 and less than or equal to Mm，N≥L，MmIs a positive integer; k is a radical ofm，nIs a positive integer.
With reference to the eighth implementation of the second aspect, in a ninth implementation of the second aspect, the resource configuration information configures N frequency domain resource clusters CmIn (2), there is at least one frequency domain resource cluster comprising at least two sets of frequency domain resources; and/or, there is at least one frequency domain resource cluster comprising a set of frequency domain resources; and/or a first frequency domain resource cluster and a second random access resource cluster exist in the N frequency domain resource clusters, and the number of frequency domain resource sets in the first frequency domain resource cluster is larger than that of frequency domain resource sets in the second random access resource cluster.
With reference to the fifth implementation of the second aspect, in a tenth implementation of the second aspect, before the receiving device receives the L types of information sent by the sending device through the L frequency domain resource clusters, the method further includes: the resource configuration information sent by the receiving device to the sending device includes at least one of the following information: the repetition times of the first preamble sequence in the random access preamble, the length of the CP, the duration of the first time domain resource and the duration of the second time domain resource, the GT, and the form of the random access preamble.
With reference to the second aspect to the tenth implementation of the second aspect, in an eleventh implementation of the second aspect, among the L kinds of information, there are at least two kinds of information whose transmission modes are the same; and/or, among the L kinds of information, at least two kinds of information have different transmission modes.
With reference to the eleventh implementation of the second aspect, in a twelfth implementation of the second aspect, among the L types of information, a transmission mode in which at least one type of information exists is the first transmission mode; the first transmission mode refers to the transmission through M in the same frequency domain resource clusteriOne frequency domain unit transmission MiThe same piece of information is transmitted for each set of frequency domain resources.
Eleventh combination with the second aspectImplementation, in a thirteenth implementation of the second aspect, among the L kinds of information, a transmission mode in which at least one kind of information exists is a second transmission mode; the second transmission mode refers to the transmission through M in the same frequency domain resource clusteriThe frequency domain units collectively transmit information, and each set of frequency domain resources transmits a portion of the information.
With reference to any one of the second to thirteenth implementations of the second aspect, in a fourteenth implementation of the second aspect, there are at least two sets of frequency domain resources in the L frequency domain resource clusters that are discrete in frequency domain.
The technical effect obtained by the second aspect of the embodiment of the present invention is similar to the technical effect obtained by the corresponding technical means in the first aspect, and is not described herein again.
In a third aspect, an information transmission apparatus is provided, the apparatus including: the apparatus includes at least one unit, where the at least one unit is configured to implement the information transmission method provided in any one of the possible implementation manners of the first aspect.
In a fourth aspect, there is provided an information transmission apparatus, the apparatus comprising: the apparatus includes at least one unit configured to implement the information transmission method provided in any one of the possible implementation manners of the second aspect.
In a fifth aspect, a transmitting apparatus is provided, which includes: the system comprises a processor, a transmitter and a receiver which are connected with the processor;
the transmitter and the receiver are configured to be controlled by a processor for implementing the information transmission method provided by any one of the possible implementations of the first aspect described above.
In a sixth aspect, there is provided a receiving apparatus comprising: the system comprises a processor, a transmitter and a receiver which are connected with the processor;
the transmitter and the receiver are configured to be controlled by a processor for implementing the information transmission method provided by any one of the possible implementations of the second aspect.
A seventh aspect provides a computer-readable storage medium, which stores instructions that, when executed on a sending device, cause the sending device to execute the information transmission method provided in any one of the possible implementation manners of the first aspect.
In an eighth aspect, a computer-readable storage medium is provided, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a receiving device, the instructions cause an access network device to perform an information transmission method provided in any one of the possible implementation manners in the second aspect.
A ninth aspect provides an information transmission system including a transmitting apparatus for executing the information transmission method provided by the first aspect, and a receiving apparatus; the receiving device is configured to execute the information transmission and transmission method provided by the second aspect.
Drawings
Fig. 1 is a schematic structural diagram of a mobile communication system provided in an exemplary embodiment of the present application;
fig. 2 is a flowchart of a random access method provided in an exemplary embodiment of the present application;
fig. 3 is a flow chart of another random access method provided by an exemplary embodiment of the present application;
fig. 4 is a schematic structural diagram of a terminal provided in an exemplary embodiment of the present application;
fig. 5 is a schematic structural diagram of an access network device according to an exemplary embodiment of the present application;
FIG. 6 is a flow chart of a method of information transfer provided by an exemplary embodiment of the present application;
fig. 7 is a schematic diagram of a frequency domain resource cluster provided by an exemplary embodiment of the present application;
fig. 8 is a diagram of frequency domain resources in the related art provided by an exemplary embodiment of the present application;
fig. 9 is a schematic diagram of a frequency domain resource cluster provided by an exemplary embodiment of the present application;
FIG. 10 is a diagram of a frequency domain resource cluster provided by an exemplary embodiment of the present application;
fig. 11 is a flowchart of an information transmission method provided by another exemplary embodiment of the present application;
fig. 12 is a schematic diagram of a frequency domain resource cluster provided by an exemplary embodiment of the present application;
fig. 13 is a flowchart of an information transmission method provided by another exemplary embodiment of the present application;
fig. 14 is a schematic diagram of a frequency domain resource cluster provided by an exemplary embodiment of the present application;
fig. 15 is a flowchart of an information transmission method provided by another exemplary embodiment of the present application;
fig. 16 is a schematic diagram of a frequency domain resource cluster provided by an exemplary embodiment of the present application;
fig. 17 is a schematic diagram of a first random access resource in a time domain according to an exemplary embodiment of the present application;
fig. 18 is a diagram of a first form of random access preamble provided by an exemplary embodiment of the present application;
fig. 19 is a diagram of a random access preamble of a second form provided by an exemplary embodiment of the present application;
fig. 20 is a schematic diagram of a third form of random access preamble provided by an exemplary embodiment of the present application;
FIG. 21 is a diagram of resource configuration information provided by an exemplary embodiment of the present application;
FIG. 22 is a block diagram of an information transfer device provided in one embodiment of the present application;
fig. 23 is a block diagram of an information transmission apparatus according to an embodiment of the present application.
Detailed Description
The terms "first," "second," and the like, as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
Reference herein to a "module" generally refers to a program or instructions stored in memory that is capable of performing certain functions; reference herein to "a unit" generally refers to a logically partitioned functional structure, and the "unit" may be implemented by pure hardware or a combination of hardware and software.
Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Reference will first be made to a number of terms referred to herein.
Licensed band (or, licensed band): refers to frequency domain resources that can only be used after being licensed by the regulatory authorities in the communications industry.
Unlicensed band (or, unlicensed band): on the premise of meeting the requirements of related technologies, frequency domain resources, such as a 5GHz frequency band, can be directly used without permission of a management department in the communication industry, and an operator can realize the distribution of network capacity by using an unauthorized frequency band to transmit information.
The related technical requirements mainly include two types, the first type of requirements does not relate to a specific coexistence specification, and mainly limits transmission power, that is, the transmission power of the access network device and the transmission power of the terminal need to be limited within a preset range, so as to avoid causing interference to the communication devices operating in the adjacent frequency band and the shared frequency band. The second type of requirement sets a specific coexistence specification for coexistence with other radio services such as radio positioning. The coexistence specification includes at least: transmit Power Control (TPC), Dynamic Frequency Selection (DFS), Occupied Channel Bandwidth (OCB) requirements, Listen Before Talk (LBT) requirements, Maximum Channel Occupied Time (MCOT) requirements, and the like.
LBT: for an unlicensed frequency band, before each communication device (access network device or terminal) sends data on a certain channel, it needs to detect whether the current channel is idle, that is, it detects whether other communication devices nearby occupy the channel to send information; if the current channel is detected to be in an idle state within a period of time, the communication device can send information on the current channel, but the communication device has a limit on the time length of sending information, and within the limit time range, the communication device does not need to execute the process of detecting whether the current channel is idle again; if the current channel is detected to be in an occupied state, the communication device is unable to transmit information on the current channel. The process of detecting whether the current Channel is idle is also referred to as Clear Channel Assessment (CCA), and the present embodiment does not limit the specific name of the process of detecting whether the current Channel is idle.
The OCB requirement is as follows: the method refers to that for different frequency domain units used for transmitting the same piece of information, the span of the different frequency domain units on the system bandwidth reaches a preset standard.
Wherein, the span of different frequency domain units on the system bandwidth reaching the preset standard means: the difference between the maximum index value of the frequency domain unit and the minimum index value of the frequency domain unit reaches a preset standard; or the frequency domain interval between different frequency domain units reaches the preset standard; or the number of the frequency domain units from the first frequency domain unit to the last frequency domain unit reaches the preset standard.
Such as: when the transmitting device and the receiving device transmit information by using a 60GHz frequency band, (the maximum index value of the frequency domain unit-the minimum index value of the frequency domain unit)/the nominal occupied channel bandwidth is more than or equal to 70% of the nominal occupied channel bandwidth; when the transmitting device and the receiving device use the 5GHz frequency band to transmit information, (the maximum index value of the frequency domain unit-the minimum index value of the frequency domain unit)/the nominal occupied channel bandwidth is more than or equal to 80% of the nominal occupied channel bandwidth.
For another example: when the transmitting device and the receiving device transmit information by using a 60GHz frequency band, the number/nominal occupied channel bandwidth of the frequency domain units spaced between the last frequency domain unit and the first frequency domain unit is more than or equal to 70% of the nominal occupied channel bandwidth; when the transmitting device and the receiving device use a 5GHz frequency band to transmit information, the number of frequency domain units/the nominal occupied channel bandwidth of the interval between the last frequency domain unit and the first frequency domain unit is more than or equal to 80% of the nominal occupied channel bandwidth.
For another example: when the transmitting device and the receiving device transmit information by using a 60GHz frequency band, the number/nominal occupied channel bandwidth of the frequency domain units from the first frequency domain unit to the last frequency domain unit is more than or equal to 70% of the nominal occupied channel bandwidth; when the transmitting device and the receiving device use a 5GHz frequency band to transmit information, the number/nominal occupied channel bandwidth of the frequency domain units from the first frequency domain unit to the last frequency domain unit is more than or equal to 80% of the nominal occupied channel bandwidth.
The nominal occupied channel bandwidth refers to a system bandwidth used in information transmission, and the nominal occupied channel bandwidth includes 100 frequency domain units, or the nominal occupied channel bandwidth includes other number of frequency domain units, which is not limited in this embodiment.
Optionally, the frequency domain unit is a Resource Block (RB) in the frequency domain.
The MCOT requirement: the time length occupied by transmitting the same information is less than or equal to the requirement of MCOT. Such as: when the transmitting device and the receiving device transmit information using a 60GHz frequency band, the MCOT is 9 milliseconds; when the transmitting device and the receiving device transmit information using the 5GHz band, the MCOT is 10 milliseconds.
Transmission Opportunity (TxOP): the method refers to a time that the communication device can continuously use the unlicensed frequency band without re-evaluating the channel through the CCA after detecting the use opportunity of the unlicensed frequency band through the idle channel. Only time units in the downlink duration may be included in a TxOP; alternatively, only time units in the uplink duration may be included; alternatively, it is also possible to include both time units in the downlink duration and time units in the uplink duration. The time unit in the downlink duration refers to a time unit for transmitting downlink data, and the time unit in the uplink duration refers to a time unit for transmitting uplink data. The TxOP may also be referred to as a Channel Occupancy period (Channel Occupancy Time), or may also be referred to as a Maximum Channel Occupancy duration (MCOT), which is not limited in this embodiment.
Licensed Assisted Access (LAA) -Long Term Evolution (LTE) system: the LTE system refers to an LTE system in which a licensed frequency band and an unlicensed frequency band are used in a combined manner by Carrier Aggregation (CA) or non-CA.
Optionally, when the usage scenario of the LAA-LTE system is a scenario in which the authorized frequency band and the unauthorized frequency band are jointly used through CA, the cell operating on the authorized frequency band is used as a primary cell, and the cell operating on the unauthorized frequency band is used as a secondary cell, where the primary cell and the secondary cell may be deployed in a co-site manner or in a non-co-site manner, and an ideal backhaul path is provided between the primary cell and the secondary cell.
Optionally, when the usage scenario of the LAA-LTE system is not a scenario in which the licensed band and the unlicensed band are jointly used by CA, for example: in a Dual Connectivity (DC) scenario, a cell operating in an authorized frequency band is used as a primary cell, a cell operating in an unauthorized frequency band is used as a secondary cell, and there is no ideal backhaul path between the primary cell and the secondary cell, such as: the backhaul delay is large.
A stand-alone LTE (standard LTE over Unlicensed spectrum, standard LTE ULTE) system on Unlicensed band: refers to an independently deployed cell operating on an unlicensed frequency band. In this case, the cell operating in the unlicensed frequency band may provide an independent access function without the assistance of the cell operating in the licensed frequency band.
Alternatively, in the present application, carrier and cell are considered as equivalent concepts, i.e. it is equivalent that a terminal accesses one carrier and one cell.
Optionally, the cell mentioned in this application is a cell corresponding to an access network device, and the cell may belong to a macro access network device, and may also belong to an access network device corresponding to a small cell (small cell), where the small cell may include: the small cell has the characteristics of small coverage area and low transmission power, and is suitable for providing high-speed data transmission service.
Frequency Division Duplexing (FDD): the method is a technology for respectively performing downlink transmission and uplink transmission by adopting two mutually symmetrical frequency channels, and a certain frequency band guard interval exists between the two channels. Generally, when a transmitting device and a receiving device transmit information using FDD technology, the channels do not have reciprocity.
Time Division Duplexing (TDD): the method refers to a technology for respectively performing downlink transmission and uplink transmission by adopting different time slots of the same frequency channel. Generally, when a transmitting device and a receiving device transmit information by using TDD technology, the channels have reciprocity.
Reciprocity of channels: in a TDD scenario, for a downlink channel for downlink transmission and an uplink channel for uplink transmission, a channel parameter of the uplink channel is approximately the same as a channel parameter of the downlink channel. The channel parameters include signal-to-noise ratio, transmission rate, channel gain, multipath fading, beam direction, and the like, which is not limited in this embodiment.
Random Access Preamble (Random Access Preamble): the terminal sends a signal to the access network device in the random access process, and the signal is used for informing the access network device that the terminal is accessed. In LTE, the random access preamble includes a Cyclic Prefix (CP) and a preamble Sequence (Sequence). Wherein, the cyclic prefix is used for eliminating the interference between symbols; the preamble sequence is the essence of the random access preamble, and is a Zadoff-chu (zc) sequence, a longest linear shift register (m-sequence), and the like, which is not limited in this embodiment.
ZC sequences fall into two categories: a first type, sequences generated by cyclic shifting a base sequence; and in the second category, the ZC sequence is subjected to DFT conversion and then IFFT conversion to obtain the sequence. ZC sequences have strong and weak cross-correlations.
An m-sequence is a pseudo-random sequence that cannot be predetermined but can be generated repeatedly. m-sequences have strong correlation and strong cross-correlation.
Referring to fig. 1, a schematic structural diagram of a mobile communication system according to an exemplary embodiment of the present application is shown. The mobile communication system may be an LTE system; the system may also be an LAA-LTE system, a standard LTE system, or a 5G system, where the 5G system is also called a New Radio (NR) system, and this embodiment is not limited thereto. The mobile communication system includes: access network device 120 and terminal 140.
The access network device 120 may be a base station, which may be configured to convert the received radio frame and IP packet message into each other, and may coordinate attribute management of the air interface. For example, the base station may be an evolved Node B (eNB) or e-NodeB in LTE, or a base station gNB adopting a centralized distributed architecture in a 5G system. When the access network device 120 adopts a centralized distributed architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DUs). A Packet Data Convergence Protocol (PDCP) layer, a Radio Link layer Control Protocol (RLC) layer, and a Media Access Control (MAC) layer are provided in the central unit; the distribution unit is provided with a Physical layer (PHY) protocol stack, and the embodiment of the present invention does not limit the specific implementation manner of the access network device 120. Optionally, the access network device may further include a Home base station (Home eNB, HeNB), a Relay (Relay), a Pico base station Pico, and the like.
The access network device 120 and the terminal 140 establish a wireless connection over a wireless air interface. Optionally, the wireless air interface is a wireless air interface based on a 5G standard, for example, the wireless air interface is a New Radio (NR); or, the wireless air interface may also be a wireless air interface based on a 5G next generation mobile communication network technology standard; alternatively, the wireless air interface may be a wireless air interface based on the 4G standard (LTE system). Access network device 120 may receive uplink data sent by terminal 140 via a wireless connection.
Terminal 140 may refer to a device in data communication with access network device 120. The terminals 140 may communicate with one or more core networks via a Radio Access Network (RAN), and the terminals 140 may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices. For example, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), an Access Point (Access Point), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Equipment (User Terminal), a User Agent (User Agent), a Terminal (User Device), or a User Terminal (UE). Optionally, the terminal 140 may also be a Relay (Relay) device, which is not limited in this embodiment.
Access to access network device 120 is required before a wireless connection is established between terminal 140 and access network device 120.
Optionally, the access network device 120 is accessed by the terminal 140 in two ways.
The first mode is as follows: referring to fig. 2, the terminal 140 accesses the access network device 120 through 4 steps (referred to as four-step random access herein).
Step 201, the terminal 140 sends a random access preamble, that is, a message 1, to the access network device 120 through the PRACH;
step 202, the access network device 120 sends a random access response to the terminal 140 according to the random access preamble, where the random access response carries uplink resources, that is, message 2, allocated to the terminal 140 by the access network device 120;
step 203, the terminal 140 sends other uplink communication data to the access network device 120 by using the uplink resource allocated in the random access response, where the other uplink data carries the identifier of the terminal 140, that is, the message 3;
step 204, the access network device 120 determines whether a conflict exists according to the identifier of the terminal 140, and if no conflict exists, sends a message 4 for indicating successful access to the terminal 140; if there is a collision, a message 4 indicating an access failure is transmitted to the terminal 140.
The second mode is as follows: referring to fig. 3, the terminal 140 accesses the access network device 120 through 2-step access.
Step 301, the terminal 140 sends a random access preamble, i.e. a message 1, to the access network device 120 through the PRACH;
step 302, the access network device 120 sends a random access response to the terminal 140 according to the direction before random access, where the random access response carries the uplink resource allocated by the access network device 120 to the terminal 140, that is, the message 2.
Alternatively, in the second mode, before step 301, the access network device 140 allocates a specific random access preamble to the terminal 120, so that when the terminal 120 sends the specific random access preamble to the access network device 140, the access network device 140 knows which terminal 120 needs to access.
Alternatively, in the second mode, before step 301, the access network device 140 allocates a transmission resource to the terminal 120, where the transmission resource is used for transmitting the random access preamble, so that when the terminal 120 transmits the random access preamble using the transmission resource, the probability of contention collision with other terminals 120 is low.
Optionally, if the access network device 140 does not allocate a specific random access preamble and/or a transmission resource for transmitting the random access preamble to the terminal 120 before step 301, at this time, the terminal 120 needs to carry its own identifier (all or part of the content carried in the original message 3) in the message 1, and send the identifier to the access network device 140. At this time, the message 1 carries the identifier of the terminal 120 in addition to the random access preamble, so that the terminal can implement contention access through two steps, thereby shortening the time consumption of contention access and meeting the requirement of low delay in the NR system (herein, referred to as two-step random access).
It should be noted that, in the mobile communication system shown in fig. 1, a plurality of access network devices 120 and/or a plurality of terminals 140 may be included, and fig. 1 illustrates one access network device 120 and one terminal 140, but this embodiment is not limited thereto.
Alternatively, the device for transmitting information among the terminal 140 and the access network device 120 is referred to herein as a transmitting device, and correspondingly, the device for receiving the information is referred to as a receiving device. Such as: when the terminal 140 sends the uplink information to the access network device 120, the terminal 140 is a sending device, and the access network device 120 is a receiving device; for another example: when access network device 120 sends downlink information to terminal 140, terminal 140 is a receiving device, and access network device 120 is a sending device.
Referring to fig. 4, a schematic structural diagram of a terminal provided in an exemplary embodiment of the present application is shown, where the access network device may be the terminal 140 in the mobile communication system shown in fig. 1. In this embodiment, a terminal 140 is taken as an example of a UE in an LTE system or a 5G system for explanation, and the terminal includes: a processor 41, a receiver 42, a transmitter 43, a memory 44, and a bus 45.
The processor 41 includes one or more processing cores, and the processor 41 executes various functional applications and information processing by running software programs and modules.
The receiver 42 and the transmitter 43 may be implemented as a communication component, which may be a communication chip, and the communication chip may include a receiving module, a transmitting module, a modulation and demodulation module, and the like, for modulating and/or demodulating information and receiving or transmitting the information through a wireless signal.
The memory 44 is for coupling with the processor 41 through a bus 45. The memory 44 stores program instructions and data necessary for the terminal.
Processor 41 is operative to execute program instructions and data in memory 44 to perform the functions of the various steps in the various method embodiments of the present application.
Alternatively, when the transmitting device is a terminal, the processor 41 controls the receiver 42 to implement the following steps 1102, 1302, 1502 (see the embodiments described in fig. 11 to 15 in detail), and the receiving function at the terminal side implied in each step, by executing at least one program instruction in the memory 44; processor 41 controls transmitter 43 to implement the functions of steps 602, 1104, 1304, 1504 (see the embodiments described in detail in fig. 6 to 15), and the terminal-side transmission function implicit in each step, by executing at least one program instruction in memory 44; the processor 41 implements the functions of the following steps 601, 1103, 1303, 1503 (see the embodiments described in fig. 6 to 15 in detail) and the determination function of the terminal side implicit in each step by executing at least one program instruction in the memory 44.
Alternatively, when the receiving device is a terminal, the processor 41 controls the receiver 42 to implement the following steps 603 (see the embodiment described in fig. 6 in detail) by executing at least one program instruction in the memory 44, and the receiving function at the terminal side implicit in each step; processor 41 controls transmitter 43 to implement the terminal-side transmit functions implicit in the various embodiments described below by executing at least one program instruction in memory 44.
Further, the memory 44 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
It will be appreciated that fig. 4 only shows a simplified design of the terminal. In other embodiments, the terminal may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all terminals that may implement the present invention are within the scope of the present invention.
Referring to fig. 5, a schematic structural diagram of an access network device provided in an exemplary embodiment of the present application is shown, where the terminal may be the access network device 120 in the mobile communication system shown in fig. 1. In this embodiment, taking the access network device 120 as an eNB in an LTE system or a gNB in a 5G system as an example for explanation, the access network device includes: a processor 51, a receiver 52, a transmitter 53, a memory 54 and a bus 55.
The processor 51 includes one or more processing cores, and the processor 51 executes various functional applications and information processing by running software programs and modules.
The receiver 52 and the transmitter 53 may be implemented as a communication component, which may be a communication chip, and the communication chip may include a receiving module, a transmitting module, a modulation and demodulation module, and the like, for performing modulation and demodulation on information and receiving or transmitting the information through a wireless signal.
The memory 54 is coupled to the processor 51 by a bus 55. The memory 54 stores program instructions and data necessary for the terminal.
The processor 51 is operative to execute the program instructions and data in the memory 54 to perform the functions of the various steps in the various method embodiments of the present application.
Optionally, when the sending device is an access network device, the processor 51 controls the receiver 52 to implement the receiving function on the access network device side implicit in each embodiment by executing at least one program instruction in the memory 54; processor 51, by executing at least one program instruction in memory 54, controls transmitter 53 to implement the functions of step 602 (see the embodiment described in detail in fig. 6) described below; the processor 51 implements the functions of step 601 (see the embodiment described in fig. 6 in detail) described below and the determination function on the access network device side implicit in each step by executing at least one program instruction in the memory 54.
Optionally, when the receiving device is an access network device, the processor 51 controls the receiver 52 to implement the following functions of steps 603, 1105, 1305, 1505 (see the embodiments described in fig. 6 to 15 in detail) and the implicit receiving function on the side of the access network device in each step by executing at least one program instruction in the memory 54; the processor 51 controls the transmitter 53 to implement the following functions of step 1101, step 1301, and step 1501 (see the embodiments described in fig. 11 to 15 in detail), and the implicit transmission function on the access network device side in each step, by executing at least one program instruction in the memory 54.
Further, the memory 54 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
It will be appreciated that fig. 5 only shows a simplified design of the access network equipment. In other embodiments, the access network device may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all access network devices in which the present invention may be implemented are within the scope of the present invention.
Referring to fig. 6, a flowchart of an information transmission method according to an exemplary embodiment of the present application is shown, where the present embodiment is described by taking as an example that the method is applied to the communication system shown in fig. 1, and the method includes:
step 601, the sending device determines L frequency domain resource clusters, where L is a positive integer.
Frequency domain resource cluster CiRefers to frequency domain resources in the system bandwidth used to transmit information. Different frequency domain resource clusters are used to transmit different types of information. Each frequency domain resource cluster CiComprising MiA set of frequency domain resources, each set of frequency domain resources comprising ki，jI is more than or equal to 1 and less than or equal to L, j is more than or equal to 1 and less than or equal to Mi，MiIs a positive integer, ki，jIs a positive integer. Wherein the type of information includes at least one of signaling and data.
Wherein M isiRefers to frequency domain resource cluster CiThe number of frequency domain resource sets included; k is a radical ofi，jRefers to frequency domain resource cluster CiThe number of frequency domain units included in the jth frequency domain resource set.
Optionally, the frequency domain unit includes one Resource Element (RE) in the frequency domain; alternatively, the frequency domain unit includes at least two consecutive REs in the frequency domain. Schematically: the frequency domain unit includes 12 consecutive subcarriers (REs in the frequency domain).
Optionally, in the same frequency domain resource cluster CiIn (2), the number of frequency domain units included in different frequency domain resource setsThe same or different, and this embodiment is not limited to this.
Optionally, when the same frequency domain resource cluster CiNumber M of included frequency domain resource setsiWhen the frequency domain resource cluster C is more than or equal to 2iThe adjacent frequency domain resource sets are continuous on the frequency domain; or, the frequency domain resource cluster CiAre discontinuous in the frequency domain between adjacent sets of frequency domain resources.
Wherein, the adjacent frequency domain resource sets refer to: in the system bandwidth, after frequency of each frequency domain resource set is arranged from small to large, the frequency domain resource sets with adjacent sequence numbers are obtained, wherein the sequence numbers of the frequency domain resource sets and the average frequency of the frequency domain resource sets are in a positive correlation relationship; or, in the system bandwidth, after the frequency of each frequency domain resource set is arranged from large to small, the frequency domain resource sets with adjacent sequence numbers are obtained, wherein the sequence numbers of the frequency domain resource sets and the average frequency of the frequency domain resource sets are in a negative correlation relationship.
Referring to fig. 7, in an illustrative example, a cluster C of frequency domain resources across a system bandwidth 7001Comprising 3 sets of frequency domain resources (M)13), where the first set of frequency domain resources 701 comprises 2 frequency domain units (k)1，12), the second set of frequency domain resources 702 comprises 4 frequency domain units (k)1，24), the third set of frequency domain resources 703 comprises 2 frequency domain units (k)1，32). The first set of frequency domain resources 701 is contiguous with the second set of frequency domain resources 702, and the second set of frequency domain resources 702 is non-contiguous with the third set of frequency domain resources 703.
The transmitting device refers to a communication device for transmitting information. The sending device may be an access network device or a terminal.
When the sending device is an access network device, the receiving device is a terminal, and at this time, the sending device determines L frequency domain resource clusters, including: l frequency domain resource clusters are determined from the pre-configured or pre-defined N frequency domain resource clusters. Wherein N is an integer greater than or equal to L.
Optionally, the access network device determines L frequency domain resource clusters from the N frequency domain resource clusters according to at least one of a current load, a distance between the access network device and the terminal, a channel parameter, and a success rate of sending information.
It should be added that, when N frequency domain resource clusters in the access network device are preconfigured, frequency domain resources occupied by the N frequency domain resource clusters in the system bandwidth respectively may be variable; when N frequency domain resource clusters in the access network device are predefined, the frequency domain resources occupied by the N frequency domain resource clusters in the system bandwidth are respectively fixed.
When the sending device is a terminal, the receiving device is an access network device, and at this time, the sending device determines L frequency domain resource clusters, including but not limited to the following manners.
In the first mode, a receiving device sends resource configuration information to at least one sending device, each sending device receives the resource configuration information sent by the receiving device, and the resource configuration information is used for configuring N frequency domain resource clusters to the at least one sending device; the sending equipment determines L frequency domain resource clusters from the N frequency domain resource clusters. Wherein it is determined that the transmitting device of the L frequency domain resource clusters is one of the at least one transmitting device that received the resource configuration information.
Optionally, in the first mode, the resource configuration information is carried in a system broadcast message. Such as: the resource configuration Information is carried in a Master Information Block (MIB); for another example: the resource configuration Information is carried in a System Information Block (SIB).
Optionally, the terminal randomly determines L frequency domain resource clusters from the N frequency domain resource clusters; or the terminal determines L frequency domain resource clusters from the N frequency domain resource clusters according to at least one of the distance between the terminal and the access network equipment, the channel parameter and the success rate of information sending.
In the second way, the receiving device sends resource configuration information to the sending device; the method comprises the steps that a sending device receives resource configuration information sent by a receiving device, wherein the resource configuration information is used for configuring L frequency domain resource clusters to the sending device; and the sending equipment determines L frequency domain resource clusters according to the resource configuration information.
Optionally, in the second manner, the resource configuration information is carried in UE-specific signaling, such as: the Resource configuration information is carried in a Radio Resource Control protocol Connection Reconfiguration (Radio Resource Control Connection Reconfiguration) message.
Optionally, in a contention-based random access process, a first manner is adopted; in the non-contention based random access procedure, the second approach is adopted.
The L frequency domain resource clusters determined by the sending device include at least the following two cases.
In the first case, L ═ 1. That is, the transmitting device determines a frequency domain resource cluster, and at this time, the same transmitting device transmits a piece of information using one frequency domain resource cluster. Such as: when the sending equipment is UE, the receiving equipment is gNB and the UE is in a connected state, if the UE needs to perform cell switching, a frequency domain resource cluster appointed by the gNB is used for sending the random access preamble.
In the second case, L is greater than or equal to 2. That is, the sending device determines at least two frequency domain resource clusters, and at this time, the same sending device uses at least two frequency domain resource clusters to transmit at least two kinds of information, where different frequency domain resource clusters transmit different kinds of information. Such as: when the sending device is a UE, the receiving device is a gNB, and the UE first accesses the gNB, if the UE transmits random access information through resources of a high frequency band, the UE uses 2 frequency domain resource clusters, wherein a first frequency domain resource cluster sends a random access preamble, and a second frequency domain resource cluster sends downlink beam direction information.
Step 602, the sending device sends L kinds of information to the receiving device through L frequency domain resource clusters.
Because different frequency domain resource clusters are used for sending different types of information, the sending device can send L types of information to the receiving device through the determined L frequency domain resource clusters, wherein each frequency domain resource cluster corresponds to one type of information.
In the L information, at least two kinds of information exist in the same transmission mode; and/or, among the L kinds of information, at least two kinds of information have different transmission modes.
The transmission mode includes two types: a first transmission mode and a second transmission mode.
The first transmission mode is: by M in the same frequency domain resource clusteriOne frequency domain unit transmission MiThe same piece of information, one for each frequency domain unit.
Such as: frequency domain resource cluster C in FIG. 71Includes 3 frequency domain resource sets 701, 702 and 703, if passing through the frequency domain resource cluster C1Using the first transmission mode to transmit information, each set of frequency domain resources transmits the same piece of information, and the 3 frequency domain units transmit 3 pieces of the same information.
The second transmission mode is: by M in the same frequency domain resource clusteriThe frequency domain units collectively transmit information, and each frequency domain unit transmits a portion of the information.
Optionally, in the second transmission mode, the number of bits of the partial information transmitted by different sets of frequency domain resources is the same; or, in the second transmission mode, the bit number of the partial information transmitted by different sets of frequency domain resources is different.
Such as: frequency domain resource cluster C in FIG. 71Includes 3 frequency domain resource sets 701, 702 and 703, if passing through the frequency domain resource cluster C1When the information is transmitted using the second transmission mode, each set of frequency domain resources transmits a portion of one piece of information, and the 3 sets of frequency domain resources collectively transmit the same piece of information.
Optionally, the number of bits of information transmitted by different frequency domain units is the same; alternatively, the number of bits of information transmitted by different frequency domain units may be different.
It should be added that, when a frequency domain resource cluster only includes one frequency domain resource set, the frequency domain resource cluster transmits information in the same manner as the information transmitted in the second transmission mode. That is, the first transmission mode and the second transmission mode both transmit information once.
Step 603, the receiving device receives L kinds of information sent by the sending device through the L frequency domain resource clusters.
The receiving equipment detects whether information exists on at least L frequency domain resource clusters every other preset time length; if the receiving device detects L types of information on L frequency domain resource clusters, the receiving device receives L types of information transmitted on the L frequency domain resource clusters. The L frequency domain resource clusters correspond to the L frequency domain resource clusters for the transmitting device to transmit the L kinds of information, that is, which frequency domain resource cluster is used by the transmitting device to transmit information, the receiving device receives information on the corresponding frequency domain resource cluster.
To sum up, in the information transmission method provided in the embodiment of the present invention, L frequency domain resource clusters in the system bandwidth are used to simultaneously transmit L kinds of information to the receiving device, each frequency domain resource cluster is used to transmit one kind of information, when L is an integer greater than 1, the transmitting device may simultaneously transmit at least two kinds of information to the receiving device, when the transmitting device is a terminal, the receiving device is an access network device, and the terminal transmits L kinds of information in the process of accessing the access network device, the L kinds of information may include not only a random access preamble but also downlink beam direction information of the terminal and/or other uplink data, so that when the terminal only transmits the random access preamble to the access network device, the access network device cannot acquire the downlink beam direction information and/or other uplink data, and thus in the random access process of the NR system, the problem that the terminal cannot simultaneously send various types of information is solved, and the requirement that the terminal simultaneously sends different types of information to the access network equipment in the NR system is met.
Optionally, after determining the L frequency domain resource clusters, the transmitting device uses the L frequency domain resource clusters to transmit information multiple times when transmitting information to the receiving device, that is, the transmitting device does not need to perform step 601 before transmitting information each time.
Alternatively, steps 601 and 602 may be implemented separately as method embodiments on the sending device side; step 603 can be implemented as an embodiment of the method on the receiving device side, which is not limited in this embodiment.
Optionally, in the related art regarding the unlicensed frequency band, when information is transmitted between the transmitting device and the receiving device, the OCB requirement needs to be satisfied. In order to meet the OCB requirements, the related art provides a way to transmit information as follows.
In the system bandwidth, the frequency domain resources occupied by the same message are repeated for multiple times, the frequency domain resources occupied by each message are spaced by the same number of frequency domain units, and the difference between the index value of the last frequency domain resource and the index value of the first frequency domain resource reaches a preset standard.
Referring to fig. 8, the frequency domain resources 81 for transmitting the same message over the system bandwidth 800 are repeated 9 times, 10 frequency domain units are spaced between different frequency domain resources 81, the difference between the index value of the last frequency domain resource 81 and the index value of the first frequency domain resource 81 is 88 frequency domain units, and the nominal occupied channel bandwidth is 100 frequency domain units, so that the span of the 9 frequency domain resources over the system bandwidth is 88% of the nominal occupied channel bandwidth, which reaches 80% of the nominal occupied channel bandwidth, and the OCB requirement is satisfied.
In the related art, since the same message is repeatedly transmitted for a plurality of times, the utilization of the system bandwidth is reduced as the number of times of repetition increases.
In order to solve the problem when information is transmitted in the related art, in this embodiment, based on the information transmission method described in fig. 6, in the L frequency domain resource clusters determined by the sending device, at least two frequency domain resource sets are discrete in the frequency domain. In at least two frequency domain resource sets which are discrete on a frequency domain, the difference between the index value of the last frequency domain unit in the last frequency domain resource set and the index value of the first frequency domain unit in the first frequency domain resource set reaches a preset standard; or the frequency domain interval between the index values of the last frequency domain unit in the last frequency domain resource set and the first frequency domain unit in the first frequency domain resource set reaches a preset standard; or the number of the frequency domain units from the first frequency domain unit to the last frequency domain unit reaches the preset standard. That is, the frequency domain span of the at least two sets of frequency domain resources over the system bandwidth satisfies the OCB requirement.
In addition, in at least two sets of frequency domain resources that are discrete in the frequency domain, the frequency domain interval between different sets of frequency domain resources is not fixed, such as: the inter-frequency domain spacing before the first set of frequency domain resources and the second set of frequency domain resources is 1 frequency domain unit, and the inter-frequency domain spacing before the second set of frequency domain resources and the third set of frequency domain resources is 2 frequency domain units.
In the embodiment of the present application, the L frequency domain resource clusters include two discrete cases to satisfy the OCB requirement:
in the first case, there are at least two sets of frequency domain resources that are discrete in the frequency domain in the same frequency domain resource cluster.
In this case, the span of the at least two frequency domain resource sets in the same frequency domain resource cluster over the system bandwidth satisfies the OCB requirement. Such as: when the transmitting device and the receiving device transmit information in a 5GHz frequency band, the span of the at least two frequency domain resource sets on the system bandwidth needs to reach at least 80% of the nominal occupied channel bandwidth.
Referring to fig. 9, in a system bandwidth 900, a frequency domain resource cluster 91 includes three frequency domain resource sets 92, 93, and 94, where the three frequency domain resource sets are discrete in a frequency domain, a difference between an index value of a last frequency domain unit of the frequency domain resource set 94 and an index value of a first frequency domain unit of the frequency domain resource set 92 is 84, and a nominal occupied channel bandwidth is 100 frequency domain units, and then a span of the three frequency domain resource sets in the system bandwidth is 84% of the nominal occupied channel bandwidth, which reaches 80% of the nominal occupied channel bandwidth, and meets an OCB requirement. Or, the number of frequency domain units spaced between the last frequency domain unit of the frequency domain resource set 94 and the first frequency domain unit of the frequency domain resource set 92 is 83, and the nominal occupied channel bandwidth is 100 frequency domain units, so that the span of the three frequency domain resource sets on the system bandwidth is 83% of the nominal occupied channel bandwidth, which reaches 80% of the nominal occupied channel bandwidth, and the OCB requirement is satisfied. Or the number of the frequency domain units included from the first frequency domain unit of the frequency domain resource set 92 to the last frequency domain unit of the frequency domain resource set 94 is 85, and the nominal occupied channel bandwidth is 100 frequency domain units, so that the span of the three frequency domain resource sets on the system bandwidth is 85% of the nominal occupied channel bandwidth, which reaches 80% of the nominal occupied channel bandwidth, and the OCB requirement is satisfied.
In a second case, among the L frequency domain resource clusters, there are at least two frequency domain resource clusters that are discrete in the frequency domain.
In this case, the span of the at least two frequency domain resource clusters over the system bandwidth satisfies the OCB requirement. That is, in at least two frequency domain resource clusters, the span of the first frequency domain unit of the first frequency domain resource set in the first frequency domain resource cluster and the last frequency domain unit of the last frequency domain resource set in the second frequency domain resource cluster on the system bandwidth satisfies the OCB requirement. The first frequency domain resource cluster and the second frequency domain resource cluster are two different frequency domain resource clusters of the at least two frequency domain resource clusters respectively. Such as: when the transmitting device and the receiving device transmit information in a 5GHz band, the span of the first frequency domain unit and the last frequency domain unit in the system bandwidth at least needs to reach 80% of the nominal occupied channel bandwidth.
Referring to fig. 10, the L frequency domain resource clusters include frequency domain resource clusters 101 and frequency domain resource clusters 102 which are discrete in two frequency domains in the system bandwidth 100, a first frequency domain unit of a first frequency domain resource set of the frequency domain resource clusters 101 is a frequency domain unit 103, and a last frequency domain unit of a last frequency domain resource set of the frequency domain resource clusters 102 is a frequency domain unit 104.
The difference between the index value of the frequency domain unit 104 and the index value of the frequency domain unit 103 is 89, and the nominal occupied channel bandwidth is 100 frequency domain units, so that the span of the three frequency domain resource sets on the system bandwidth is 89% of the nominal occupied channel bandwidth, which reaches 80% of the nominal occupied channel bandwidth, and the OCB requirement is satisfied.
Or, the number of the frequency domain units spaced between the frequency domain unit 104 and the frequency domain unit 103 is 88, and the nominal occupied channel bandwidth is 100 frequency domain units, so that the span of the three frequency domain resource sets on the system bandwidth is 88% of the nominal occupied channel bandwidth, which reaches 80% of the nominal occupied channel bandwidth, and the OCB requirement is satisfied.
Or the number of the frequency domain units included in the frequency domain units 103 to 104 is 90, and the nominal occupied channel bandwidth is 100 frequency domain units, then the span of the three frequency domain resource sets on the system bandwidth is 90% of the nominal occupied channel bandwidth, which reaches 80% of the nominal occupied channel bandwidth, and the OCB requirement is satisfied.
In summary, in the information transmission method provided in the embodiment of the present invention, by determining that there are L frequency domain resource clusters in which at least two frequency domain resource sets are discrete in the frequency domain, when selecting a frequency domain resource set in which a span of two frequency domain units in the system bandwidth meets a preset standard, the sending device can meet the OCB requirement when transmitting information in an unauthorized frequency band, reduce the number of times that the sending device repeatedly transmits the same type of information, and improve the utilization rate of system bandwidth resources.
Alternatively, the application scenario of the information transmission method shown in fig. 6 differs according to the difference between the transmitting device and the receiving device.
In some examples of the present application, when the sending device is a UE and the receiving device is a gNB, the information transmission method may be applied to a random access scenario and may also be applied to a sending scenario of uplink data.
Alternatively, based on the embodiment described in fig. 6, the following describes the implementation of the information transmission method in a random access scenario. In the NR system, the random access scenario includes at least: the method comprises a four-step random access scene based on a high-frequency band, a two-step random access scene based on the high-frequency band, and a two-step random access scene based on the high-frequency band or the low-frequency band. The embodiment described in fig. 11 is used to explain the application of the information transmission method to a four-step random access scenario of a high-frequency band; the embodiment described in fig. 13 is used to explain the application of the information transmission method to a two-step random access scenario of a high frequency band; the embodiment shown in fig. 15 is used to explain the two-step random access scenario in which the information transmission method is applied to a high-frequency band or a low-frequency band.
Firstly, the method comprises the following steps: and (4) accessing a scene randomly in four steps based on a high-frequency band.
In the embodiment of the present application, the high frequency band refers to a frequency band with a frequency greater than a preset frequency point, and the embodiment does not limit a specific numerical value of the preset frequency point. Such as: the preset frequency point is 6GHz, and at the moment, the frequency higher than 6GHz is a high-frequency band.
Optionally, the high-frequency band refers to a band with a frequency in a high-frequency range, and this embodiment does not limit specific values of the high-frequency range, such as: the high frequency range is 6 GHz-100 GHz, and at the moment, the frequency bands within 6 GHz-100 GHz are all high frequency bands.
In a high-frequency band random access scene, in order to overcome the high loss defect of high-frequency transmission, the gNB uses a Beam Forming (Beam Forming) technology to send information to the UE.
Optionally, the gNB transmits information to the UE using a beamforming technique, including: the gNB divides the 360-degree transmission angle into s equal small transmission angles, each small transmission angle is 360/s degrees, each small transmission angle uses one beam to transmit information, each beam corresponds to one beam index value, the number of the beam index values is s, and the beam index value is used for indicating the direction of the corresponding beam to transmit information.
Such as: the gNB divides the transmission angle of 360 degrees into 60 equal small transmission angles, each small transmission angle is 6 degrees, each small transmission angle uses one beam to transmit information, the number of beam index values corresponding to the beam is 60, and the value range of the beam index values is [0, 59 ].
As can be seen from the above, before sending information to the UE, the gNB needs to know downlink beam direction information in advance, and send downlink information to the UE according to the downlink beam direction information. At this time, during accessing the gNB, the UE needs to transmit not only the random access preamble but also downlink beam direction information to the gNB.
The downlink beam direction information is used for indicating a downlink beam direction used when the receiving device sends the downlink information to the sending device.
Referring to fig. 11, a flowchart of an information transmission method according to another exemplary embodiment of the present application is shown, where the present embodiment is described by taking as an example that the method is applied to the communication system shown in fig. 1, and the method includes:
step 1101, the gNB sends resource configuration information to the UE.
Optionally, the gNB carries the resource configuration information in a system broadcast message and sends the system broadcast message to the UE; or, the gNB carries the resource configuration information in a UE-specific signaling and sends the resource configuration information to the UE.
Step 1102, the UE receives resource configuration information.
If the gNB carries the resource configuration information in the system broadcast message, the UE receives N frequency domain resource clusters in the system broadcast message; and if the gNB carries the resource configuration information in the UE-specific signaling, the UE receives L frequency domain resource clusters in the UE-specific signaling.
Step 1103, the UE determines L frequency domain resource clusters.
The L frequency domain resource clusters comprise two random access resource clusters located in a high-frequency band.
Before sending downlink beam direction information to the gNB, the UE needs to determine the downlink beam direction information. The UE determines downlink beam direction information, including: the UE receives downlink information broadcasted by at least one gNB through a beam forming technology in different directions, wherein the downlink information comprises indication information used for indicating beams used by the gNB; and the UE detects the energy of at least one piece of received downlink information and determines the downlink beam direction information according to the indication information in the downlink information with the highest energy.
Wherein the indication information is a beam index value of a beam used by the gNB.
After determining the downlink beam direction information, the UE indicates the downlink beam direction information through an index of the second preamble sequence.
Optionally, the second preamble sequence is generated in the same manner as the first preamble sequence in the random access preamble. Such as: the first preamble sequence is generated by cyclically shifting the root sequence, and then the second preamble sequence is also generated by cyclically shifting the root sequence.
Optionally, the root sequence used to generate the first preamble sequence is the same as or different from the root sequence used to generate the second preamble sequence.
Optionally, the set of sequences of the first preamble sequence is the same as the set of sequences of the second preamble sequence; or, the sequence set of the first preamble sequence is partially identical to the sequence set of the second preamble sequence; alternatively, the set of sequences of the first preamble sequence is different from the set of sequences of the second preamble sequence.
In an illustrative example, the root sequence of the first preamble sequence is the same as the root sequence of the second preamble sequence, and the UE performs cyclic shift on the root sequence to obtain 64 preamble sequences; the 64 leader sequences are combined to obtain a first sequence set to which the first leader sequence belongs and a second sequence set to which the second leader sequence belongs. At this time, the first sequence set and the second sequence set are the same. That is, the first sequence set includes 64 preamble sequences, and the second sequence set includes 64 preamble sequences. Each first preamble sequence corresponds to an index value, such as: the index value corresponding to the leader sequence 1 in the first sequence set is 0, and the index value corresponding to the leader sequence 2 in the first sequence set is 1. Each second preamble sequence corresponds to an index value, such as: the index value corresponding to the leader sequence 1 in the second sequence set is 0, and the index value corresponding to the leader sequence 2 in the second sequence set is 1.
Optionally, the index of the second preamble sequence corresponds to a beam index value, such as: the index of the second preamble sequence is 1, the corresponding beam index value is 1, the index of the preamble sequence is 60, and the corresponding beam index value is 60.
Step 1104, the UE sends a random access preamble to the gNB through the first random access resource cluster; and sending downlink beam direction information to the gNB through the second random access resource cluster.
The first random access resource cluster and the second random access resource cluster are two random access resource clusters located in a high-frequency band and determined by the UE.
Referring to fig. 12, assume that a UE determines 2 frequency domain resource clusters 1201 and 1202 from system bandwidth 1200.
The frequency domain resource cluster 1201 includes 1 frequency domain resource set 12011, the frequency domain resource set includes 1 frequency domain unit 12012, a transmission mode corresponding to the frequency domain resource cluster 1201 is a second transmission mode, and the UE transmits the random access preamble through the frequency domain resource cluster 1201.
The frequency domain resource cluster 1202 includes 1 frequency domain resource set 12021, the frequency domain resource set includes 1 frequency domain unit 12022, a transmission mode corresponding to the frequency domain resource cluster 1202 is a second transmission mode, and the UE transmits downlink beam direction information through the frequency domain resource cluster 1202.
Step 1105, the gNB receives a random access preamble sent by the UE through the first random access resource cluster; and receiving downlink beam direction information sent by the UE through the second random access resource cluster.
In summary, in the information transmission method provided in the embodiment of the present invention, 2 frequency domain resource clusters are used to simultaneously send a random access preamble and downlink beam direction information to a receiving device in a random access process, and the 2 frequency domain resource clusters are resources in a high frequency band, so that when a UE and a gNB perform random access using the resources in the high frequency band, the UE can simultaneously send the random access preamble and the downlink beam direction information to the gNB, which solves the problem that, in an NR high frequency scene, if the UE only sends the random access preamble to the gNB, the gNB cannot know the downlink beam direction information when sending the downlink information to the UE, and meets a requirement that the UE simultaneously sends two different types of information to the gNB in a high frequency random access process of an NR system.
It should be added that this embodiment is applied to a scenario where a channel between the UE and the gNB does not have channel reciprocity, for example: and transmitting information between the UE and the gNB by the FDD technology.
Optionally, this embodiment may also be applied to a scenario in which a channel between the UE and the gNB has channel reciprocity, for example: in a scenario where information is transmitted between the UE and the gNB through the TDD technology, at this time, the gNB may calculate downlink beam direction information according to a random access preamble sent by the UE, and therefore, the UE may send the downlink beam direction information to the gNB, or may not send the downlink beam direction information to the gNB, which is not limited in this embodiment. When the UE sends downlink beam direction information to the gNB, the method is the same as the method described in this embodiment.
Optionally, the steps 1102-1104 can be implemented separately as a method embodiment at the UE side; steps 1101 and 1105 can be implemented separately as the method embodiment of the gNB side, which is not limited by this embodiment.
Secondly, the method comprises the following steps: and (4) accessing a scene randomly in four steps based on a high-frequency band.
In the two-step random access scenario, the UE needs to send its own identifier to the gNB, so that when the gNB receives random access preambles sent by multiple UEs, contention conflicts are resolved according to the identifier. At this time, during accessing the gNB, the UE needs to send not only the random access preamble and the downlink beam direction information to the gNB, but also other uplink data to the gNB.
Optionally, the other uplink data includes all or part of the message 3 in the access manner shown in fig. 2, or the other uplink data includes the message 3 and other data except the message 3. Illustratively, the other upstream data includes at least one of an identification of the transmitting device, control information, a connection request, and a service data packet.
Optionally, the UE identifier is an International Mobile Subscriber identity Number (IMSI) or is allocated by the gNB, which is not limited in this embodiment.
Referring to fig. 13, a flowchart of an information transmission method according to another exemplary embodiment of the present application is shown, where the present embodiment is described by taking as an example that the method is applied to the communication system shown in fig. 1, and the method includes:
step 1301, the gNB sends resource configuration information to the UE.
Optionally, the gNB carries the resource configuration information in a system broadcast message and sends the system broadcast message to the UE; or, the gNB carries the resource configuration information in a UE-specific signaling and sends the resource configuration information to the UE.
In step 1302, the UE receives resource configuration information.
If the gNB carries the resource configuration information in the system broadcast message, the UE receives N frequency domain resource clusters in the system broadcast message; and if the gNB carries the resource configuration information in the UE-specific signaling, the UE receives L frequency domain resource clusters in the UE-specific signaling.
In step 1303, the UE determines L frequency domain resource clusters.
The L frequency domain resource clusters include three random access resource clusters located in a high frequency band.
Step 1304, the UE sends a random access preamble to the gNB through the first random access resource cluster; sending downlink beam direction information to the gNB through the second random access resource cluster; and sending other uplink data to the gNB through the third random access resource cluster.
The first random access resource cluster, the second random access resource cluster and the third random access resource cluster are three random access resource clusters which are determined by the UE and are located in a high-frequency band.
The detailed description about the transmission of the downlink beam direction information from the transmitting device to the receiving device is shown in the embodiment shown in fig. 11, and this embodiment is not described herein again.
Referring to fig. 14, assume that a UE determines 3 frequency domain resource clusters 1401, 1402, and 1403 from a system bandwidth 1400.
The frequency domain resource cluster 1401 includes 2 frequency domain resource sets 14011 and 14012, the frequency domain resource set 14011 includes 1 frequency domain unit 140111, the frequency domain resource set 14012 includes 1 frequency domain unit 140121, the transmission mode corresponding to the frequency domain resource cluster 1401 is the first transmission mode, and the UE transmits the random access preamble through the frequency domain resource cluster 1401, at this time, the UE transmits 2 random access preambles on different frequency bands.
The frequency domain resource cluster 1402 includes 1 frequency domain resource set 14021, the frequency domain resource set includes 1 frequency domain unit 140211, a transmission mode corresponding to the frequency domain resource cluster 1402 is a first transmission mode, the UE transmits downlink beam direction information through the frequency domain resource cluster 1402, and at this time, the UE only transmits one piece of downlink beam direction information.
The frequency domain resource cluster 1403 includes 1 frequency domain resource set 14031, the frequency domain resource set includes 2 frequency domain units 140311, the transmission mode corresponding to the frequency domain resource cluster 1403 is the first transmission mode, the UE transmits other uplink data through the frequency domain resource cluster 1403, and at this time, the UE only transmits other uplink data once.
Step 1305, the gNB receives a random access preamble sent by the UE through the first random access resource cluster; receiving downlink beam direction information sent by the UE through a second random access resource cluster; and receiving other uplink data sent by the UE through the third random access resource cluster.
In summary, the information transmission method provided in the embodiments of the present invention uses 3 frequency domain resource clusters to simultaneously transmit the random access preamble, the downlink beam direction information, and other uplink data to the receiving device in the random access process, the 3 frequency domain resource clusters are resources of a high frequency band, so that when the UE and the gNB use the resources of the high frequency band for communication, the UE can simultaneously send random access preamble, downlink beam direction information and other uplink data to the gNB, so that in the high-frequency two-step random access process of the NR system, if the UE can only send the random access preamble to the gNB, the problem of downlink beam direction information when sending downlink information to the UE cannot be known by the gNB, and the gNB cannot acquire the identity of the UE, therefore, the problem of competition conflict cannot be solved, and the requirement that three different types of information are simultaneously sent to the gNB in the high-frequency two-step random access process of the NR system is met.
It should be added that this embodiment is applied to a scenario where a channel between the UE and the gNB does not have channel reciprocity, for example: and transmitting information between the UE and the gNB by the FDD technology.
Optionally, this embodiment may also be applied to a scenario in which a channel between the UE and the gNB has channel reciprocity.
Optionally, step 1302-1304 may be implemented separately as a method embodiment at the UE side; steps 1301 and 1305 may be implemented separately as the method embodiment of the gNB side, which is not limited by this embodiment.
And thirdly, a two-step random access scene based on a high-frequency band or a low-frequency band.
If the UE and the gNB transmit information through the low frequency band resource, or the information between the UE and the gNB has reciprocity, the UE may not send downlink beam direction information to the gNB when sending the random access preamble to the gNB. However, if the UE accesses the gNB through the two-step random access method, the UE needs to send other uplink data to the gNB in addition to the random access preamble to the gNB.
Optionally, the low frequency band is a frequency band lower than the frequency point threshold, or the low frequency band is a frequency band within a low frequency range, which is not limited in this embodiment.
Wherein, the frequency point threshold value can be the same with the numerical value of predetermineeing the frequency point, also can be different with the numerical value of predetermineeing the frequency point, and this embodiment does not restrict this, for example: the frequency point threshold value is the same as the preset frequency point value and is 6 GHz. In addition, the present embodiment does not limit the specific values of the low frequency range, such as: the low frequency range is 4 GHz-6 GHz, and at the moment, the frequency band within 4 GHz-6 GHz is the low frequency band.
Referring to fig. 15, based on the embodiment shown in fig. 1, a flowchart of an information transmission method provided in another exemplary embodiment of the present application is shown, where this embodiment is described by taking as an example that the method is applied to the communication system shown in fig. 1, and the method includes:
in step 1501, the gNB sends resource configuration information to the UE.
Optionally, the gNB carries the resource configuration information in a system broadcast message and sends the system broadcast message to the UE; or, the gNB carries the resource configuration information in a UE-specific signaling and sends the resource configuration information to the UE.
Step 1502, the UE receives resource configuration information.
If the gNB carries the resource configuration information in the system broadcast message, the UE receives N frequency domain resource clusters in the system broadcast message; and if the gNB carries the resource configuration information in the UE-specific signaling, the UE receives L frequency domain resource clusters in the UE-specific signaling.
In step 1503, the UE determines L frequency domain resource clusters.
Optionally, in this embodiment, the L frequency domain resource clusters include two random access resource clusters located in a high frequency band, or the L frequency domain resource clusters include two random access resource clusters located in a low frequency band.
Step 1504, the UE sends a random access preamble to the gNB through the first random access resource cluster; and sending other uplink data to the gNB through the second random access resource cluster.
The first random access resource cluster and the second random access resource cluster are two random access resource clusters which are determined by the UE and are located in a high-frequency band; or the first random access resource cluster and the second random access resource cluster are two random access resource clusters located in the low-frequency band and determined by the UE.
Details of the content of the UE sending other uplink data to the gNB are shown in the embodiment shown in fig. 13, and this embodiment is not described herein again.
Referring to fig. 16, assume that the UE determines 2 frequency domain resource clusters 1601 and 1602 across the system bandwidth 1600.
The frequency domain resource cluster 1601 includes 2 frequency domain resource sets 16011 and 16012, the frequency domain resource set 16011 includes 1 frequency domain unit 160111, the frequency domain resource set 16012 includes 1 frequency domain unit 160121, a transmission mode corresponding to the frequency domain resource cluster 1601 is a first transmission mode, the UE transmits the random access preamble through the frequency domain resource cluster 1601, and at this time, the UE transmits 2 random access preambles in different frequency bands.
The frequency domain resource cluster 1602 includes 1 frequency domain resource set 16021, the frequency domain resource set includes 2 frequency domain units 160211, a transmission mode corresponding to the frequency domain resource cluster 1602 is a first transmission mode, the UE transmits other uplink data through the frequency domain resource cluster 1602, and at this time, the UE only transmits other uplink data once.
Step 1505, the gNB receives a random access preamble sent by the UE through the first random access resource cluster; and receiving other uplink data sent by the UE through the second random access resource cluster.
In summary, in the information transmission method provided in the embodiment of the present invention, 2 frequency domain resource clusters are used to send the random access preamble and other uplink data to the receiving device in the random access process, so that when the UE accesses the gNB in the two-step random access manner, the UE can send the random access preamble and other uplink data to the gNB at the same time, so that the gNB can solve the contention conflict according to the identifier of the UE in the other uplink data, and the problem that the UE can only send the random access preamble to the gNB, and the gNB cannot know the identifier of the UE, so that the contention conflict cannot be solved is solved, and the requirement that the UE sends different types of information to the gNB at the same time in the two-step random access process of NR is satisfied.
It should be added that, the embodiment is applied to a high-frequency scenario in which a channel between the UE and the gNB has channel reciprocity; or, the embodiment is applied to a scenario in which information is transmitted between the UE and the gNB through a low frequency band.
In this embodiment, it is exemplified that a frequency domain resource cluster transmits other uplink data, and optionally, when the other uplink data includes at least two types of data, for example: the other uplink data comprises an identifier of the UE and a service data packet, the resource configuration information configured by the gNB comprises frequency domain resources of at least four frequency domain resource clusters, correspondingly, the UE selects the at least four frequency domain resource clusters according to the resource configuration information sent by the gNB, wherein the first frequency domain resource cluster is used for transmitting a random access preamble; the second frequency domain resource cluster is used for transmitting downlink beam direction information; the other at least two frequency domain resource clusters are respectively used for transmitting one data of other uplink data, such as: the frequency domain resource cluster is used for transmitting the identification of the UE and the frequency domain resource cluster is used for transmitting the service data packet.
Optionally, step 1502-1504 may be implemented separately as a method embodiment at the UE side; steps 1501 and 1505 can be implemented separately as a method embodiment on the gbb side, which is not limited in this embodiment.
Based on the embodiments shown in fig. 11, 13 and 15, when the UE and the gNB use the frequency domain resources of the unlicensed frequency band to transmit information, idle channel detection needs to be performed before the random access preamble is transmitted. At this time, the first random access resource in the embodiments shown in fig. 11, 13 and 15 includes the first time domain resource and the second time domain resource in the time domain; or, the UE divides the first random access resource into a first time domain resource and a second time domain resource in a time domain. The first time domain resource is used for the UE to perform idle channel detection, and the second time domain resource is used for transmitting the random access preamble.
Optionally, when the UE selects at least two frequency domain resource clusters to send information, in order to ensure that the UE can align in the time domain when sending different information, that is, the UE sends multiple pieces of information at the same time, therefore, the second random access resource and/or the third random access resource also includes the first time domain resource and the second time domain resource in the time domain; or the UE divides the second random access resource and/or the third random access resource into the first time domain resource and the second time domain resource in the time domain. The first time domain resource is used for the UE to perform idle channel detection, the second time domain resource in the second random access resource is used for transmitting the downlink beam direction information, and the second time domain resource in the third random access resource is used for transmitting other uplink data.
Optionally, the first time domain resource and the second time domain resource are in one subframe.
Optionally, the first time domain resource and the second time domain resource are time domain resources in one transmission opportunity.
In the foregoing scenario, a sending device sends a random access preamble to a receiving device through a first random access resource cluster, including: the sending equipment detects the idle channel through the first time domain resource; and when the idle channel is detected to be in an idle state, the sending equipment sends the random access preamble in the second time domain resource.
The sending device is a UE, and the receiving device is a gNB.
In one implementation, the method for idle channel detection in a first time domain resource by a transmitting device includes: the UE detects whether the energy of channels corresponding to the L frequency domain resource clusters is lower than an energy threshold value or not in the first time domain resource; if the energy threshold value is lower than the energy threshold value, the channel is not occupied by other UE, and the UE determines that the idle channel detection result of the channel is in an idle state. At this time, the UE transmits the random access preamble in the second time domain resource.
In another implementation, the method for detecting idle channels by a transmitting device in a first time domain resource includes: the UE detects whether the energy of a channel corresponding to the whole system bandwidth is lower than an energy threshold value or not in a first time domain resource; if the energy threshold value is lower than the energy threshold value, the channel is not occupied by other UE, and the UE determines that the idle channel detection result of the channel is in an idle state. At this time, the UE transmits the random access preamble in the second time domain resource.
Referring to fig. 17, a schematic diagram of a first random access resource in a time domain is shown, where a first time domain resource 1701 is used for idle channel detection and a second time domain resource 1702 is used for transmitting a random access preamble.
In the present embodiment, the random access preamble includes, but is not limited to, the following three forms.
In a first form, a random access preamble includes: one CP, x repeated first preamble sequences and one Guard Time (GT), x being a positive integer.
Optionally, when both the UE and the gNB use frequency domain resources of the low frequency band to transmit information; or, when the channel between the UE and the gNB has reciprocity and both the UE and the gNB use the high frequency band to transmit information, the value of x is 1; when the channel between the UE and the gNB has no reciprocity and both the UE and the gNB use the frequency domain resource of the high frequency band to transmit information, the value of x is greater than 1, and the value of x can be dynamically configured.
The GT is used to cancel Inter Symbol Interference (ISI), and the GT may be dynamically configured.
Alternatively, the length of the CP may be dynamically configured.
Referring to fig. 18, a schematic diagram of a first form of random access preamble is shown, wherein the random access preamble 1800 includes 1 CP1801, 2 repeated first preamble sequences 1802 and a GT 1803.
In a second form, a random access preamble includes: y repeated first combinations and a guard time GT, the first combinations being combinations of a CP and a first preamble sequence, y being a positive integer.
Optionally, when both the UE and the gNB use frequency domain resources of a low frequency band to transmit information; or, when the channel between the UE and the gNB has reciprocity and both the UE and the gNB use the high frequency band to transmit information, the value of y is 1; when the channel between the UE and the gNB has no reciprocity and both the UE and the gNB use the frequency domain resource of the high frequency band to transmit information, the value of y is greater than 1, and the value of y can be dynamically configured.
Referring to fig. 19, a schematic diagram of a second form of random access preamble is shown, wherein the random access preamble 1900 comprises 2 repeated first combinations 1901 and a GT 1902.
In a third form, a random access preamble includes: z repeated second combinations, a CP, a first preamble sequence and a guard time GT, z being a positive integer.
Optionally, when both the UE and the gNB use frequency domain resources of a low frequency band to transmit information; or, when the channel between the UE and the gNB has reciprocity and both the UE and the gNB use the high frequency band to transmit information, the value of z is 1; when the channel between the UE and the gNB has no reciprocity and both the UE and the gNB use the frequency domain resource of the high frequency band to transmit information, the value of z is greater than 1, and the value of z is dynamically configurable.
Referring to fig. 20, a schematic diagram of a third form of random access preamble is shown, wherein the random access preamble 2000 comprises 2 repeated second combinations 2001.
It should be added that "repetition" in this embodiment means: the same information is copied multiple times.
Optionally, in order to meet the MCOT requirement in the unlicensed frequency band scenario, a duration occupied by the first time domain resource and the second time domain resource is less than or equal to the MCOT. Wherein the MCOT is dynamically configurable.
Optionally, if the UE and the gNB use the frequency domain resource of the authorized frequency band to transmit information, the duration occupied by the first time domain resource and the second time domain resource does not need to meet the MCOT requirement, and the duration of the first time domain resource is 0.
Alternatively, the downlink beam direction information may be represented by the above three ways, except that the first preamble sequence is changed to the second preamble sequence in the above three ways.
Optionally, the information transmission method in the present application is applied to a scenario in which the access network device sends downlink data to the terminal. At this time, the transmitting device is an access network device, and the receiving device is a terminal. Of course, the information transmission method according to the present application may also be applied to other similar information transmission scenarios, and this embodiment does not limit this.
Based on the foregoing embodiments, optionally, when the sending device and the receiving device transmit information through the high-frequency unauthorized frequency domain resource and the sending device accesses the access network device through the four-step random access manner, if a channel between the sending device and the receiving device does not have channel reciprocity, the sending device transmits the information using the frequency domain resource usage manner in the embodiment described in fig. 11 and the time domain resource usage manner in the embodiment described in fig. 17, where a duration of the first time domain resource in fig. 17 is not 0. Optionally, when the sending device and the receiving device transmit information through the high-frequency unauthorized frequency domain resource and the sending device accesses the access network device through the four-step random access process, if a channel between the sending device and the receiving device has channel reciprocity, the sending device transmits the information using one frequency domain resource cluster and the time domain resource usage mode in the embodiment described in fig. 17, and at this time, the duration of the first time domain resource in fig. 17 is not 0.
Optionally, when the sending device and the receiving device transmit information through the high-frequency unauthorized frequency domain resource and the sending device accesses the access network device through the two-step random access process, if a channel between the sending device and the receiving device does not have channel reciprocity, the sending device transmits the information using the frequency domain resource usage in the embodiment illustrated in fig. 13 and the time domain resource usage in the embodiment illustrated in fig. 17, where a duration of the first time domain resource in fig. 17 is not 0.
Optionally, when the sending device and the receiving device transmit information through the high-frequency unauthorized frequency domain resource and the sending device accesses the access network device through the two-step random access method, if a channel between the sending device and the receiving device has channel reciprocity, the sending device transmits the information using the frequency domain resource usage method in the embodiment described in fig. 15 and the time domain resource usage method in the embodiment described in fig. 17, where a duration of the first time domain resource is not 0.
Optionally, when the sending device and the receiving device transmit information through the frequency domain resource authorized by the high frequency, and the sending device accesses the access network device through the four-step random access method, if a channel between the sending device and the receiving device does not have channel reciprocity, the sending device transmits the information using the frequency domain resource usage method in the embodiment illustrated in fig. 11 and the time domain resource usage method in the embodiment illustrated in fig. 17, where a duration of the first time domain resource in fig. 17 is 0.
Optionally, when the sending device and the receiving device transmit information through the high-frequency authorized frequency domain resource and the sending device accesses the access network device through the four-step random access manner, if a channel between the sending device and the receiving device has channel reciprocity, the sending device transmits information using one frequency domain resource and the time domain resource in the embodiment shown in fig. 17, where a duration of the first time domain resource in fig. 17 is 0.
Optionally, when the sending device and the receiving device transmit information through the frequency domain resource authorized by the high frequency, and the sending device accesses the access network device through the two-step random access method, if a channel between the sending device and the receiving device does not have channel reciprocity, the sending device transmits the information by using the frequency domain resource usage method in the embodiment illustrated in fig. 13 and the time domain resource usage method in the embodiment illustrated in fig. 17, where a duration of the first time domain resource in fig. 17 is 0.
Optionally, when the sending device and the receiving device transmit information through the frequency domain resource authorized by the high frequency, and the sending device accesses the access network device through the two-step random access method, if a channel between the sending device and the receiving device has channel reciprocity, the sending device transmits the information by using the frequency domain resource usage method in the embodiment described in fig. 15 and the time domain resource usage method in the embodiment described in fig. 17, where a duration of the first time domain resource in fig. 17 is 0.
Optionally, when the sending device and the receiving device transmit information through the low-frequency unauthorized frequency domain resource and the sending device accesses the access network device through the two-step random access method, the sending device transmits the information using the usage method of the frequency domain resource in the embodiment illustrated in fig. 15 and the usage method of the time domain resource in the embodiment illustrated in fig. 17, where a duration of the first time domain resource in fig. 17 is not 0.
Optionally, when the sending device and the receiving device transmit information through the low-frequency unauthorized frequency domain resource and the sending device accesses the access network device through the four-step random access manner, the sending device transmits the information using one frequency domain resource cluster and the time domain resource usage manner in the embodiment described in fig. 17, where a duration of the first time domain resource in fig. 17 is not 0.
Optionally, when the sending device and the receiving device transmit information through the frequency domain resource of the low frequency grant, and the sending device accesses the access network device through the two-step random access method, the sending device transmits the information using the usage method of the frequency domain resource in the embodiment described in fig. 15 and the usage method of the time domain resource in the embodiment described in fig. 17, where a duration of the first time domain resource in fig. 17 is 0.
Optionally, when the sending device and the receiving device transmit information through the frequency domain resource authorized by the low frequency, and the sending device accesses the access network device through the four-step random access manner, the sending device transmits the information using one frequency domain resource cluster and the time domain resource usage manner in the embodiment described in fig. 17, at this time, the duration of the first time domain resource in fig. 17 is 0.
Based on the above information transmission scenarios, the sending device needs to receive resource configuration information sent by the receiving device before determining the L frequency domain resource clusters, and determines the L frequency domain resource clusters from the resource configuration information according to the information transmission scenarios. Optionally, the resource configuration information includes: frequency domain resource configuration information and time domain resource configuration information.
The frequency domain resource configuration information includes at least one of the following four kinds of information:
each frequency domain resource cluster CmThe type of information sent;
each frequency domain resource cluster CmThe transmission mode of (1);
each frequency domain resource cluster CmM included inmA set of frequency domain resources;
the starting position of each frequency domain resource set and the number k of frequency domain units included in each frequency domain resource setm，nAt least two kinds of information in an end position of each set of frequency domain resources; m is more than or equal to 1 and less than or equal to N, N is more than or equal to 1 and less than or equal to Mm，N≥L，MmIs a positive integer; k is a radical ofm，nIs a positive integer.
Wherein, N refers to the number of frequency domain resource clusters configured by the receiving device. MmRefers to the mth frequency domain resource cluster CmThe number of frequency domain resource sets involved. k is a radical ofm，nRefers to the mth frequency domain resource cluster CmThe number of frequency domain units included in the nth set of frequency domain resources.
Optionally, to adapt to a high-frequency four-step random access scenario, the frequency domain resource cluster CmType of information transmitted: including a random access preamble; or, downlink beam direction information is included.
To accommodate the high frequency two-step random access scenario, frequency domain resource cluster CmThe types of information transmitted include: a random access preamble; or, including downlink beam direction information; or, other upstream data.
In order to adapt to low-frequency four-step random access scene, frequency domain resource cluster CmThe types of information transmitted include: a random access preamble.
To accommodate low frequency two-step random access scenarios, frequency domain resource cluster CmThe types of information transmitted include: a random access preamble; or, other upstream data.
Frequency domain resource cluster CmIncludes a first transmission mode and a second transmission mode.
Optionally, in order to satisfy a scenario in which the terminal needs to transmit the same information multiple times, the transmission mode in which at least one frequency domain resource cluster exists is the first transmission mode.
Optionally, the transmission mode in which there is at least one cluster of frequency domain resources is the second transmission mode.
Optionally, in the N frequency domain resource clusters, there are a first frequency domain resource cluster and a second frequency domain resource cluster, and the number of frequency domain resource sets in the first frequency domain resource cluster is greater than the number of frequency domain resource sets in the second frequency domain resource cluster. If the UE does not successfully perform multiple random accesses to the gNB, the UE transmits random access information (at least one of a random access preamble, downlink beam direction information, and other uplink data) through the first transmission mode using at least one first frequency domain resource cluster. Because each first frequency domain resource cluster comprises a large number of frequency domain resource sets, the UE can simultaneously transmit the same random access information for many times, and the success probability of UE random access to the gNB is improved.
Such as: a certain PRACH resource configured by the gNB for the UE includes 1 frequency domain resource cluster. The transmission mode of the frequency domain resource cluster is a first transmission mode and includes two sets of frequency domain resources indexed {0-5} and {42-47}, respectively. When the UE selects the frequency domain resource cluster to transmit the random access preamble, the random access preamble may be transmitted twice at the same time, which improves the probability of success of the UE accessing the gNB.
Optionally, all frequency domain resource sets in the N frequency domain resource clusters are equal in size. That is, the number of frequency domain units included in all the frequency domain resource sets in the N frequency domain resource clusters is equal.
Optionally, in order to meet a scenario that the terminal uses one frequency domain resource cluster to transmit information in the unlicensed frequency band, at least one frequency domain resource cluster includes at least two frequency domain resource sets, and a span of the at least two frequency domain resource sets in the system bandwidth reaches a preset standard.
Optionally, in order to satisfy a scenario that the terminal uses multiple frequency domain resource clusters to transmit information in the unlicensed frequency band, at least one frequency domain resource cluster including one frequency domain resource set exists, so that when the terminal uses two frequency domain resource clusters to transmit two kinds of information, if two frequency domain resource clusters including only one frequency domain resource set are used to transmit the two kinds of information and a span of the two frequency domain resource clusters on the system bandwidth reaches a preset standard, the terminal transmits the two kinds of information and also satisfies an OCB requirement in the unlicensed frequency band, thereby improving a utilization rate of the system bandwidth.
Optionally, the terminal passes through the starting position of the frequency domain resource sets and the number k of frequency domain units included in each frequency domain resource setm，nThe distribution of each frequency domain resource cluster in the system bandwidth is determined.
Wherein the starting position of the frequency domain resource set is determined according to the index value of each frequency domain unit in the system bandwidth.
Such as: frequency domain resource cluster C in resource configuration information1The method comprises the following steps that two frequency domain resource sets are included, the starting position of the first frequency domain resource set is 0, and the first frequency domain resource set comprises 6 frequency domain units, so that the frequency domain resources occupied by the first frequency domain resource set are {0-5 }; the starting position of the second set of frequency domain resources is 42 and comprises 6 frequency domain units, then the frequency domain resources occupied by the second set of frequency domain resources is {42-47 }. Frequency domain resource cluster C1The distribution in system bandwidth is 0-5 and 42-47.
Optionally, the terminal determines the distribution of each frequency domain resource cluster in the system bandwidth according to the starting position of the frequency domain resource set and the ending position of each frequency domain resource set.
Wherein the end position of the frequency domain resource set is determined according to the index value of each frequency domain unit in the system bandwidth.
Such as: frequency domain resource cluster C in resource configuration information1The method comprises the following steps that two frequency domain resource sets are included, the starting position of the first frequency domain resource set is 0, the ending position of the first frequency domain resource set is 5, and then the frequency domain resources occupied by the first frequency domain resource set are {0-5 }; the starting position of the second set of frequency domain resources is 42, and the ending position is 47, then the frequency domain resources occupied by the second set of frequency domain resources is {42-47 }. Frequency domain resource cluster C1The distribution in system bandwidth is 0-5 and 42-47.
Optionally, the number k of frequency domain units included by the terminal through each frequency domain resource setm，nAnd the end position of each frequency domain resource set is used for determining the distribution condition of each frequency domain resource cluster in the system bandwidth.
Such as: frequency domain resource cluster C in resource configuration information1The method comprises two frequency domain resource sets, wherein the first frequency domain resource set comprises 6 frequency domain units, and the ending position is 5, so that the frequency domain resources occupied by the first frequency domain resource set are {0-5 }; the second set of frequency domain resources comprises 6 frequency domain units, and the ending position is 47, then the frequency domain resources occupied by the second set of frequency domain resources are {42-47 }. Frequency domain resource cluster C1The distribution in system bandwidth is 0-5 and 42-47.
Optionally, when the receiving device sends the resource configuration information to the sending device, all the frequency domain resources are not allocated to the same type of channel, but a part of the frequency domain resources are reserved for other types of channels to use, for example: a part of frequency domain resources are allocated to a PRACH Channel for use, and a part of frequency domain resources are reserved for a Physical Uplink Control Channel (PUCCH) Channel and/or a Physical Uplink Shared Channel (PUSCH) Channel for use.
It should be added that, in the resource configuration information, L frequency domain resource clusters selected by the same UE are divided into the same frequency domain resource, and the UE selects a frequency domain resource cluster by selecting different frequency domain resources in the resource configuration information.
Optionally, the number of frequency domain resource clusters in different frequency domain resources is the same or different.
Such as: the resource configuration information includes 2 frequency domain resources, the first frequency domain resource includes 2 frequency domain resource clusters, and the second frequency domain resource includes 3 frequency domain resource clusters. If the UE selects the first frequency domain resource, 2 frequency domain resource clusters are selected; if the UE selects the second frequency domain resource, 3 frequency domain resource clusters are selected.
Optionally, in a random access scenario, the time domain resource configuration information includes at least one of the following information: the repetition times of the preamble sequence in the random access preamble, the length of the CP, the number of the CP, the total duration of the first time domain resource, the total duration of the second time domain resource, the duration of the GT, and the form of the random access preamble.
Optionally, the form of the random access preamble includes three forms, which are indicated by form indication information, such as: the format indication information 00 is used to indicate the format of the first random access preamble; the format indication information 01 is used for indicating the format of the second random access preamble; the form indication information 10 is used to indicate the form of the third random access preamble. For another example: the form indication information 'form 1' is used to indicate the form of the first random access preamble; the form indication information 'form 2' is used to indicate the form of the second random access preamble; the form indication information 'form 3' is used to indicate the form of the third random access preamble. The format of the format indication information is not limited in this embodiment.
Optionally, in order to adapt to a scenario where the channel between the UE and the gNB has no reciprocity at high frequencies, the number of repetitions of the preamble sequence is greater than 1.
Optionally, in order to adapt to the unlicensed frequency band scenario, a sum of a duration of the first time domain resource and a duration of the second time domain resource is less than the MCOT.
Illustratively, the configuration mode of the resource configuration information can be realized by the following information format.
Figure GDA0001273638590000281
Figure GDA0001273638590000291
Figure GDA0001273638590000301
The above message format is shown as the following table one:
table one:
Figure GDA0001273638590000302
Figure GDA0001273638590000311
Figure GDA0001273638590000321
alternatively, the above information format is only illustrative, and the information format is different under different information transmission scenarios.
Such as: in a high-frequency authorization scene, the UE and the gNB have channel reciprocity; or, in the low-frequency authorization scenario, the rootsequencenedixBeam, zerocorrelationZonecontFigBeam, reach-preambleRepeat 0, reach-ClusterConfigBeam may not be configured in the above information format.
For another example: in a high-frequency unauthorized scene, if the UE accesses the gNB in a two-step random access manner, the PRACH-ResourceConfig in the information format may be replaced with the following information format.
Figure GDA0001273638590000322
Figure GDA0001273638590000331
It should be added that the PRACH interval refers to a resource allocated by the gNB for the terminal to perform random access, and the PRACH resource refers to a set of multiple frequency domain resource clusters.
The above message format is shown as the following table two:
table two:
Figure GDA0001273638590000332
Figure GDA0001273638590000341
it should be noted that the parameter Ns2 needs to be configured when the length of the frequency domain resource cluster list PRACH-ClusterConfigList is 2(Ns is 2); otherwise, it is not configured.
In order to more clearly understand the resource configuration information received by the sending device, an example of the resource configuration information received by the sending device is described below. In the following example, the sending device is a UE, the receiving device is a gNB, and the resource configuration information is used to allocate random access resources. Since the random access resource is typically a resource in the PRACH channel, the random access resource is hereinafter simply referred to as PRACH resource. Optionally, in the NR or next generation communication system, the random access resource may also be a resource in another channel, which is not limited in this embodiment.
Referring to a system bandwidth 211 shown in fig. 21, the system bandwidth is divided according to resource allocation information, and it is assumed that the system bandwidth has 100 frequency domain units in a frequency domain, and a frequency domain unit index is 0 to 99. The system bandwidth is divided into 8 PRACH resources in the frequency domain: each PRACH resource is used by at least one UE, and the resource configuration information may be used by at least 8 UEs.
Each PRACH resource 1 to 4 includes 3 frequency domain resource clusters, and respectively transmits a random access preamble, a downlink transmission beam direction, and other uplink data.
PRACH (1) (frequency domain resources indicated by left-diagonal lines in fig. 21):
the PRACH (1, 1) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the index of a frequency domain unit is {33-38 };
the PRACH (1, 2) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the index of a frequency domain unit is {69-74 };
the PRACH (1, 3) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {0-2 }.
PRACH (2) (frequency domain resources indicated by right-hand slashes in fig. 21):
the PRACH (2, 1) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the index of a frequency domain unit is {3-8 };
the PRACH (2, 2) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {41-46 };
the PRACH (2, 3) transmission mode is the first transmission mode, and comprises 1 frequency domain resource set, and the frequency domain unit index is {75-77 }.
PRACH (3) (frequency domain resources indicated by vertical line in fig. 21):
the PRACH (3, 1) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the index of a frequency domain unit is {53-58 };
the PRACH (3, 2) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the index of a frequency domain unit is {80-85 };
the PRACH (3, 3) transmission mode is the first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {11-13 }.
PRACH (4) (frequency domain resources indicated by cross-hatching in fig. 21):
the PRACH (4, 1) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {14-19 };
the PRACH (4, 2) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {61-66 };
the PRACH (4, 3) transmission mode is the first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {86-88 }.
In the PRACH resources 5 and 6, each PRACH resource includes 2 frequency domain resource clusters, and respectively transmits a random access preamble and other uplink data;
PRACH (5) (frequency domain resources indicated by horizontal line in fig. 21):
the PRACH (5, 1) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {91-96 };
the PRACH (5, 2) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is 22-24 }.
PRACH (6) (frequency domain resources represented by squares in fig. 21):
the PRACH (6, 1) transmission mode is a first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {25-30 };
the PRACH (6, 2) transmission mode is the first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {97-99 }.
The PRACH resource 7 (frequency domain resource represented by a blank part in the figure) includes 2 frequency domain resource clusters, and respectively transmits random access preamble and downlink beam direction information;
the PRACH (7, 1) transmission mode is a second transmission mode, and includes 8 sets of frequency-domain resources, and the frequency-domain element indexes are {9}, {20}, {31}, {39}, {59}, {67}, {78}, and {89 };
the PRACH (7, 2) transmission mode is the first transmission mode and comprises 1 frequency domain resource set, and the frequency domain unit index is {47-52 }.
The PRACH resources 8 include 1 frequency domain resource cluster, and transmit a random access preamble;
the PRACH (8, 1) transmission mode is a second transmission mode, and includes 8 sets of frequency-domain resources, and the frequency-domain element indices are {10}, {21}, {32}, {40}, {60}, {68}, {79}, and {90}, respectively.
The PRACH (a, b) refers to the b-th frequency domain resource cluster in the a-th PRACH.
The time domain resources 212 corresponding to the frequency domain units in each frequency domain resource set include a first time domain resource and a second time domain resource. Alternatively, the duration of the first time domain resource may be 0, and the form of the random access preamble transmitted on the second time domain resource may be configured.
Based on the resource configuration information shown in fig. 21, the PRACH resources 5 and 6 may be used by UEs that do not need to send downlink beam direction information (e.g., UEs that request uplink resources in a connected state);
PRACH resources 7 and 8 may be available for UEs that do not need to send other uplink data (e.g., non-contention random access based UEs);
the PRACH resource 7 may be used by UEs that do not need to transmit other uplink data but need to transmit downlink beam direction information (e.g., UEs that need to adjust a beam direction);
the PRACH resources 1 to 4 may be used by UEs that need to transmit random access preambles, downlink transmit beam directions, and other uplink data.
Through the resource allocation manner shown in fig. 21, 100 frequency domain units on the system bandwidth can be fully utilized, the requirement of the high-frequency unlicensed frequency band OCB is met, and different PRACH resources are provided for UEs in different scenarios.
It should be added that the dividing manner of the PRACH resources in this example is only schematic, and in actual implementation, the dividing manner of the PRACH resources may also be other manners, such as: the second frequency domain resource cluster in the PRACH resource 7 and the first frequency domain resource cluster in the PRACH resource 8 are used as one PRACH resource.
Referring to fig. 22, a block diagram of an information transmission apparatus according to an embodiment of the present application is shown. The information transmission apparatus may be implemented by software, hardware, or a combination of both as all or a part of the transmitting device in the mobile communication system shown in fig. 1. The information transmission apparatus may include: a determination unit 2210, a transmission unit 2220, a reception unit 2230.
A determining unit 2210, configured to implement the functions of the above steps 601, 1103, 1303, 1503 and the implicit determining function in each step.
A sending unit 2220, configured to implement the functions of steps 602, 1104, 1304, and 1504 and the implicit sending function in each step.
A receiving unit 2230, configured to implement the functions of the foregoing steps 1102, 1302, 1502 and the implicit receiving function in each step.
The relevant details may be combined with the method embodiments described with reference to fig. 6-21.
Alternatively, the determining unit 2210 may be implemented by a processor in the sending device executing the corresponding instructions; the transmitting unit 2220 may be implemented by a transmitter in the transmitting device; the receiving unit 2230 may be implemented by a receiver in the transmitting device.
Referring to fig. 23, a block diagram of an information transmission apparatus according to an embodiment of the present application is shown. The information transmission apparatus may be implemented by software, hardware, or a combination of both as all or a part of a receiving device in the mobile communication system shown in fig. 1. The information transmission apparatus may include: a receiving unit 2310 and a transmitting unit 2320.
A receiving unit 2310, configured to implement the functions of the above steps 603, 1105, 1305, 1505 and the implicit receiving function in each step.
A sending unit 2320, configured to implement the functions of the foregoing steps 1101, 1301, 1501 and the implicit sending function in each step.
The relevant details may be combined with the method embodiments described with reference to fig. 6-21.
Alternatively, the receiving unit 2310 may be implemented by a receiver in a receiving device; the transmitting unit 2320 may be implemented by a transmitter in the receiving device.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the apparatuses and units described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (22)

1. An information transmission method, characterized in that the method comprises:
the method comprises the steps that a sending device determines L frequency domain resource clusters, wherein L is a positive integer, different frequency domain resource clusters are used for sending different types of information, and the types of the information comprise at least one of signaling and data;
the sending equipment sends L kinds of information to receiving equipment through the L frequency domain resource clusters, and each frequency domain resource cluster corresponds to one kind of information;
the L frequency domain resource clusters include: two random access resource clusters located in a high frequency band, where the sending device sends L types of information to the receiving device through the L frequency domain resource clusters, including: the sending equipment sends a random access preamble to the receiving equipment through a first random access resource cluster; sending downlink beam direction information to the receiving equipment through a second random access resource cluster; or the like, or, alternatively,
the L frequency domain resource clusters include: the three random access resource clusters located in the high-frequency band, where the sending device sends L types of information to the receiving device through the L frequency domain resource clusters, including: the sending equipment sends a random access preamble to the receiving equipment through a first random access resource cluster; sending downlink beam direction information to the receiving equipment through a second random access resource cluster; sending other uplink data to the receiving equipment through a third random access resource cluster;
the high-frequency band is a frequency band with a frequency greater than a preset frequency point, the downlink beam direction information is used for indicating a downlink beam direction used when the receiving device sends downlink information to the sending device, the other uplink data includes at least one of an identifier of the sending device, control information, a connection request and a service data packet, and each frequency domain resource cluster C is a frequency domain resource cluster CiComprising MiA set of frequency domain resources, each of the sets of frequency domain resources comprising ki，jI is more than or equal to 1 and less than or equal to L, j is more than or equal to 1 and less than or equal to Mi，MiIs a positive integer; k is a radical ofi，jIs a positive integer.
2. The method of claim 1, wherein the first random access resource cluster is a random access resource cluster located in an unlicensed frequency band; the first random access resource cluster comprises a first time domain resource and a second time domain resource in a time domain;
the sending device sends a random access preamble to the receiving device through a first random access resource cluster, including:
the sending equipment detects idle channels through the first time domain resources;
and the sending equipment sends the random access preamble in the second time domain resource when the idle channel is detected to be in an idle state.
3. The method of claim 1, wherein the random access preamble comprises one of the following forms:
a cyclic prefix CP, x repeated first preamble sequences and a guard time GT, said x being a positive integer;
y repeated first combinations and a GT, the first combinations being combinations of a CP and a first preamble sequence, the y being a positive integer;
z repeated second combinations, said second combinations being a combination of a CP, a first preamble sequence and a GT, said z being a positive integer.
4. The method of claim 2, wherein the random access preamble comprises one of the following forms:
a cyclic prefix CP, x repeated first preamble sequences and a guard time GT, said x being a positive integer;
y repeated first combinations and a GT, the first combinations being combinations of a CP and a first preamble sequence, the y being a positive integer;
z repeated second combinations, said second combinations being a combination of a CP, a first preamble sequence and a GT, said z being a positive integer.
5. The method of claim 1, wherein the downlink beam direction information is indicated by using an index of a second preamble sequence, and the second preamble sequence is generated in a same manner as a first preamble sequence in the random access preamble.
6. The method of any of claims 1 to 5, wherein the determining, by the sending device, L clusters of frequency domain resources comprises:
the sending equipment receives resource configuration information sent by the receiving equipment, wherein the resource configuration information is used for configuring N frequency domain resource clusters to at least one sending equipment; the sending equipment determines L frequency domain resource clusters from the N frequency domain resource clusters;
alternatively, the first and second electrodes may be,
the sending equipment receives resource configuration information sent by the receiving equipment, wherein the resource configuration information is used for configuring L frequency domain resource clusters to the sending equipment; and the sending equipment determines the L frequency domain resource clusters according to the resource configuration information.
7. The method of claim 6, wherein the resource configuration information comprises at least one of the following four types of information:
each of the frequency domain resource clusters CmThe type of information sent;
each of the frequency domain resource clusters CmThe transmission mode of (1);
each of the frequency domain resource clusters CmM included inmA set of frequency domain resources;
the starting position of each frequency domain resource set and the number k of frequency domain units included in each frequency domain resource setm，nAt least two kinds of information in an end position of each of the sets of frequency domain resources;
1≤m≤N，1≤n≤Mm，N≥L，Mmis a positive integer; k is a radical ofm，nIs a positive integer.
8. The method according to claim 6, wherein said resource configuration information configures N frequency domain resource clusters CmIn (1),
there is at least one said cluster of frequency domain resources comprising at least two said sets of frequency domain resources; and/or the presence of a gas in the gas,
there is at least one said cluster of frequency domain resources comprising one said set of frequency domain resources; and/or the presence of a gas in the gas,
in the N frequency domain resource clusters, a first frequency domain resource cluster and a second frequency domain resource cluster exist, and the number of frequency domain resource sets in the first frequency domain resource cluster is greater than the number of frequency domain resource sets in the second frequency domain resource cluster.
9. The method of claim 4, wherein the transmitting device determines L frequency domain resource clusters, comprising:
the sending device receives resource configuration information sent by the receiving device, wherein the resource configuration information includes at least one of the following information:
the number of repetitions of the first preamble sequence in the random access preamble, the length of the CP, the number of CPs, the duration of the first time domain resource, the duration of the second time domain resource, the duration of the GT, and the form of the random access preamble.
10. The method according to any one of claims 1 to 5,
in the L information, at least two information have the same transmission mode;
and/or the presence of a gas in the gas,
in the L kinds of information, there are at least two kinds of information different in transmission mode.
11. The method according to any one of claims 7 to 9,
in the L information, at least two information have the same transmission mode;
and/or the presence of a gas in the gas,
in the L kinds of information, there are at least two kinds of information different in transmission mode.
12. The method of claim 10,
among the L kinds of information, a transmission mode in which at least one kind of information exists is a first transmission mode; the first transmission mode refers to the transmission through M in the same frequency domain resource clusteriTransmitting M of the frequency domain resource setsiA same piece of said information, each of said sets of frequency domain resources transmitting a piece of said information;
and/or the presence of a gas in the gas,
among the L kinds of information, a transmission mode in which at least one kind of information exists is a second transmission mode; the second transmission mode refers to the transmission through M in the same frequency domain resource clusteriThe frequency domain units transmit the information together, and each frequency domain resource set transmits the informationA part of (a).
13. The method of claim 11,
among the L kinds of information, a transmission mode in which at least one kind of information exists is a first transmission mode; the first transmission mode refers to the transmission through M in the same frequency domain resource clusteriTransmitting M of the frequency domain resource setsiA same piece of said information, each of said sets of frequency domain resources transmitting a piece of said information;
and/or the presence of a gas in the gas,
among the L kinds of information, a transmission mode in which at least one kind of information exists is a second transmission mode; the second transmission mode refers to the transmission through M in the same frequency domain resource clusteriThe frequency domain units collectively transmit the information, and each of the sets of frequency domain resources transmits a portion of the information.
14. An information transmission method, characterized in that the method comprises:
receiving, by a receiving device, L types of information sent by a sending device through L frequency domain resource clusters, where each frequency domain resource cluster corresponds to one type of the information, where L is a positive integer, and different frequency domain resource clusters are used to send different types of information, where the type of the information includes at least one of signaling and data;
the L frequency domain resource clusters include: two random access resource clusters located in a high frequency band, where the receiving device receives L types of information sent by the sending device through L frequency domain resource clusters, including: the receiving equipment receives the random access preamble sent by the sending equipment through a first random access resource cluster; receiving downlink beam direction information sent by the sending equipment through a second random access resource cluster; or the like, or, alternatively,
the L frequency domain resource clusters include: the three random access resource clusters located in the high-frequency band, where the receiving device receives L types of information sent by the sending device through the L frequency domain resource clusters, and the receiving device includes: the receiving equipment receives the random access preamble sent by the sending equipment through a first random access resource cluster; receiving downlink beam direction information sent by the sending equipment through a second random access resource cluster; receiving other uplink data sent by the sending equipment through a third random access resource cluster;
the high-frequency band is a frequency band with a frequency greater than a preset frequency point, the downlink beam direction information is used for indicating a downlink beam direction used when the receiving device sends downlink information to the sending device, the other uplink data includes at least one of an identifier of the sending device, control information, a connection request and a service data packet, and each frequency domain resource cluster C is a frequency domain resource cluster CiComprising MiA set of frequency domain resources, each of the sets of frequency domain resources comprising ki，jI is more than or equal to 1 and less than or equal to L, j is more than or equal to 1 and less than or equal to Mi；MiIs a positive integer; k is a radical ofi，jIs a positive integer.
15. The method of claim 14, wherein the first random access resource cluster is a random access resource cluster located in an unlicensed frequency band; the first random access resource cluster comprises a first time domain resource and a second time domain resource in a time domain;
the receiving device receives the random access preamble sent by the sending device through the first random access resource cluster, and the method includes:
and the receiving equipment receives the random access preamble sent by the sending equipment on the second time domain resource through the second time domain resource.
16. The method of claim 14, wherein before the receiving device receives L types of information transmitted by the transmitting device through L frequency domain resource clusters, the method further comprises:
the receiving device sends resource configuration information to at least one sending device, wherein the resource configuration information is used for configuring N frequency domain resource clusters, and the at least one sending device comprises the sending device;
alternatively, the first and second electrodes may be,
and the receiving equipment sends resource configuration information to the sending equipment, wherein the resource configuration information is used for configuring L frequency domain resource clusters to the sending equipment.
17. The method of claim 15, wherein before the receiving device receives L types of information sent by the sending device through L frequency domain resource clusters, the method further comprises:
the receiving device sends resource configuration information to at least one sending device, wherein the resource configuration information is used for configuring N frequency domain resource clusters, and the at least one sending device comprises the sending device;
alternatively, the first and second electrodes may be,
and the receiving equipment sends resource configuration information to the sending equipment, wherein the resource configuration information is used for configuring L frequency domain resource clusters to the sending equipment.
18. An information transmission apparatus, characterized in that the apparatus comprises:
a determining unit, configured to determine L frequency domain resource clusters, where L is a positive integer, and different frequency domain resource clusters are used to send different types of information, where the type of the information includes at least one of signaling and data;
a sending unit, configured to send L types of information to a receiving device through the L frequency domain resource clusters, where each frequency domain resource cluster corresponds to one type of information;
the L frequency domain resource clusters include: two random access resource clusters located in the high frequency band, the sending unit is further configured to: sending a random access preamble to the receiving device through a first random access resource cluster; sending downlink beam direction information to the receiving equipment through a second random access resource cluster; or the like, or, alternatively,
the L frequency domain resource clusters include: the three random access resource clusters located in the high frequency band, the sending unit is further configured to: sending a random access preamble to the receiving device through a first random access resource cluster; sending downlink beam direction information to the receiving equipment through a second random access resource cluster; sending other uplink data to the receiving equipment through a third random access resource cluster;
the high-frequency band is a frequency band with a frequency greater than a preset frequency point, the downlink beam direction information is used for indicating a downlink beam direction used when the receiving device sends downlink information to the sending device, the other uplink data includes at least one of an identifier of the sending device, control information, a connection request and a service data packet, and each frequency domain resource cluster C is a frequency domain resource cluster CiComprising MiA set of frequency domain resources, each of the sets of frequency domain resources comprising ki，jI is more than or equal to 1 and less than or equal to L, j is more than or equal to 1 and less than or equal to Mi，MiIs a positive integer; k is a radical ofi，jIs a positive integer.
19. The apparatus of claim 18, wherein the first cluster of random access resources is a cluster of random access resources located in an unlicensed frequency band; the first random access resource cluster comprises a first time domain resource and a second time domain resource in a time domain;
the sending unit is further configured to:
the sending equipment detects idle channels through the first time domain resources;
and the sending equipment sends the random access preamble in the second time domain resource when the idle channel is detected to be in an idle state.
20. An information transmission apparatus, characterized in that the apparatus comprises:
a receiving unit, configured to receive L types of information sent by a sending device through L frequency domain resource clusters, where each frequency domain resource cluster corresponds to one type of information, where L is a positive integer, and different frequency domain resource clusters are used to send different types of information, where the type of information includes at least one of signaling and data;
the L frequency domain resource clusters include: two random access resource clusters located in a high frequency band, the receiving unit is configured to: receiving a random access preamble sent by the sending equipment through a first random access resource cluster; receiving downlink beam direction information sent by the sending equipment through a second random access resource cluster; or the like, or, alternatively,
the L frequency domain resource clusters include: the receiving unit is configured to: the receiving equipment receives the random access preamble sent by the sending equipment through a first random access resource cluster; receiving downlink beam direction information sent by the sending equipment through a second random access resource cluster; receiving other uplink data sent by the sending equipment through a third random access resource cluster;
the high-frequency band is a frequency band with a frequency greater than a preset frequency point, the downlink beam direction information is used for indicating a downlink beam direction used when the receiving device sends downlink information to the sending device, the other uplink data includes at least one of an identifier of the sending device, control information, a connection request and a service data packet, and each frequency domain resource cluster C is a frequency domain resource cluster CiComprising MiA set of frequency domain resources, each of the sets of frequency domain resources comprising ki，jI is more than or equal to 1 and less than or equal to L, j is more than or equal to 1 and less than or equal to Mi；MiIs a positive integer; k is a radical ofi，jIs a positive integer.
21. The apparatus of claim 20, wherein the first cluster of random access resources is a cluster of random access resources located in an unlicensed frequency band; the first random access resource cluster comprises a first time domain resource and a second time domain resource in a time domain;
the receiving unit is configured to:
and receiving the random access preamble sent by the sending equipment on the second time domain resource through the second time domain resource.
22. An information transmission system characterized by comprising a transmitting device and a receiving device;
the apparatus of any one of claims 18 to 19;
the receiving device as claimed in any one of claims 20 to 21.
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