CN111525993B

CN111525993B - Resource allocation method and device

Info

Publication number: CN111525993B
Application number: CN201910107366.1A
Authority: CN
Inventors: 戴建强; 袁志锋; 张峻峰; 胡宇洲
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2019-02-02
Filing date: 2019-02-02
Publication date: 2023-02-28
Anticipated expiration: 2039-02-02
Also published as: CN111525993A; WO2020156356A1

Abstract

The application provides a resource allocation method and a resource allocation device, wherein the method comprises the following steps: the method comprises the steps of sending signals, determining resources corresponding to the lead codes according to a preset mapping relation agreed by two communication parties, and sending the effective loads on the resources.

Description

Resource allocation method and device

Technical Field

The present application relates to, but not limited to, the field of communications, and in particular, to a resource allocation method and apparatus.

Background

In the related art, a 2-step Random Access Channel (RACH) can better shorten Access delay compared with a 4-step RACH Access method in a long term evolution system LTE, and specifically is a first step: the terminal UE sends a message msgA to the base station, and the second step is as follows: and the base station sends msg B to the terminal UE.

In some scenarios, the 2-step RACH not only completes the task of accessing the Network (for example, obtaining uplink synchronization, or obtaining a Cell Radio Network Temporary Identifier (Cell Radio Network Temporary Identifier, abbreviated as C-RNTI) in a collision resolution scheme), but also can simultaneously transmit a small amount of uplink data.

Specifically, for example, in a massive Machine Type Communication (mtc) scenario or an Enhanced Mobile Broadband (eMBB) packet scenario, a large number of terminals may exist in a network, and a service of each terminal is sporadic packet data transmission. Or, the terminal needs to complete uplink transmission of packet data in a scheduling-free (inactive) state. The 2-step RACH access method can meet this requirement.

For the problem of signaling resource consumption when indicating the resource used by the effective load in the related art, no effective solution exists at present.

Disclosure of Invention

The embodiment of the application provides a resource allocation method and a resource allocation device, so as to at least solve the problem that signaling resources are consumed when resources used by an effective load are indicated in the related art.

According to an embodiment of the present application, there is provided a resource allocation method including: the sending signal comprises a Preamble and an effective load payload, and the resource occupied by the effective load and the Preamble have a preset mapping relation.

According to another embodiment of the present application, there is also provided a resource allocation method, including: receiving a sending signal of a sending end, wherein the sending signal comprises a lead code Preamble and an effective load payload, and a preset mapping relation exists between resources occupied by the effective load and the lead code.

According to another embodiment of the present application, there is also provided a resource configuration apparatus, including: the device comprises a sending module and a receiving module, wherein the sending module is used for sending a signal, the signal comprises a Preamble and an effective load payload, and a preset mapping relation exists between resources occupied by the effective load and the Preamble.

According to another embodiment of the present application, there is also provided a resource configuration apparatus, including: the receiving module is used for receiving a signal sent by a sending end, wherein the signal comprises a Preamble and an effective load payload, and a preset mapping relation exists between resources occupied by the effective load and the Preamble.

According to another embodiment of the present application, there is also provided a resource configuration system, including: the first communication node is used for sending a signal, wherein the signal comprises a lead code and an effective load, and a preset mapping relation exists between resources occupied by the effective load and the lead code; and the second communication node is used for receiving the signal and corresponding the lead code to the preset mapping relation.

According to a further embodiment of the present application, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.

According to yet another embodiment of the present application, there is also provided an electronic device, comprising a memory in which a computer program is stored and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.

According to the scheme, both communication parties know the preset mapping relation, a sending end does not need to additionally consume signaling resources to indicate resources occupied by the effective load, signaling resources are saved through implicit indication on the premise that channel estimation accuracy of a receiving end is guaranteed, and the problem that signaling resources are consumed when resources used by the effective load are indicated in the related technology is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a block diagram of a hardware structure of a mobile terminal of a resource allocation method according to an embodiment of the present application;

FIG. 2 is a first flowchart of a resource allocation method according to an embodiment of the present application;

FIG. 3 is a second flowchart of a resource allocation method according to an embodiment of the present application;

fig. 4 (a) is a diagram one of determining time domain resources of a payload according to example seven;

fig. 4 (b) is a schematic diagram of determining frequency domain resources of a payload according to example seven;

fig. 5 is a diagram two of determining time domain resources of a payload according to example seven.

Detailed Description

The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Example one

In the embodiments of the present application, a mobile communication network (including but not limited to a 5G mobile communication network) is provided, and a network architecture of the network may include a network side device (e.g., a base station) and a terminal. In this embodiment, a resource allocation method that can be run on the network architecture is provided, and it should be noted that the running environment of the resource allocation method provided in this embodiment is not limited to the network architecture.

The method provided by the first embodiment of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking a mobile terminal as an example, fig. 1 is a hardware structure block diagram of a mobile terminal of a resource configuration method according to an embodiment of the present invention, as shown in fig. 1, the mobile terminal may include one or more processors 102 (only one is shown in fig. 1) (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), and a memory 104 for storing data, and optionally, the mobile terminal may further include a transmission device 106 for a communication function and an input/output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration, and does not limit the structure of the mobile terminal. For example, the mobile terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.

The memory 104 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the resource allocation method in the embodiment of the present application, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, so as to implement the above-mentioned method. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.

In this embodiment, a resource allocation method operating in the mobile terminal is provided, and fig. 2 is a first flowchart of the resource allocation method according to the embodiment of the present application, and as shown in fig. 2, the flowchart includes the following steps:

step S202, determining a preset mapping relation between resources occupied by the effective load and the lead code;

step S204, sending a signal according to the preset mapping relationship, where the signal includes an effective preamble and an effective load.

Through the steps, the sending signal comprises the lead code and the effective load, the resource corresponding to the lead code is determined according to the preset mapping relation agreed by the two communication parties, and the effective load is sent on the resource.

The above scheme can be used in the 2-Step random access process in the related art.

Optionally, the main body of the above steps may be a communication node such as a mobile terminal, but is not limited thereto.

Optionally, preamble, payload.

Optionally, a preset mapping relationship exists between resources occupied by the payload and the preamble, and includes at least one of: a Resource Block (RB for short) occupied by the effective load has a preset mapping relation with the lead code; a preset mapping relation exists between demodulation reference signal port DMRS port resources occupied by the effective load and the lead code; a preset mapping relation exists between the time domain resources occupied by the effective load and the time domain resources occupied by the lead code; and the frequency domain resources occupied by the effective load and the frequency domain resources occupied by the lead code have a preset mapping relation. By adopting the scheme, the time domain and frequency domain resources occupied by the effective load can be implicitly indicated through the lead code, so that a receiving end can receive the effective load conveniently or carry out signal estimation.

Optionally, a preset mapping relationship exists between the resource block RB occupied by the payload and the preamble, and includes one of: the preamble comprises a plurality of subsets, and the payload transmitted together with the preamble in a first subset occupies one or more Physical Resource Blocks (PRBs) corresponding to the first subset; the preamble includes a plurality of subsets, and the payload transmitted with the preamble in a second subset occupies resource blocks, RBs, corresponding to the second subset, wherein the RBs include one or more PRBs. By adopting the scheme, the mapping relation between the subset and the resource block is established in advance, and the subsequent receiving end can determine the resource block occupied by the effective load according to the mapping relation.

Optionally, resource blocks RB occupied by payloads corresponding to any 2 preambles are orthogonal or completely overlapped, where the payload transmitted together with the preambles is the corresponding payload.

Optionally, the payload corresponding to each preamble occupies the same resource block RB size, where the payload transmitted together with the preamble is the corresponding payload.

Optionally, at least one of:

the total bandwidth occupied by all payload can be divided into x _ part groups, and the x _ part value is one of the following values: 2,3,4,5,6,12;

one preamble corresponds to one group of PRBs, wherein the number of the group of PRBs belongs to a set {1,2,3,4,6,8,9}, or the number of the PRBs in 1 group does not exceed 12 PRBs;

one preamble corresponds to one set of RBs, wherein the frequency domains of two different sets of RBs are orthogonal, or the frequency domains partially overlap, or the frequency domains completely overlap.

Optionally, a preset mapping relationship exists between the DMRS port resource occupied by the payload and the preamble, and includes: the preamble comprises a plurality of subsets, and the effective load transmitted together with the preamble in the third subset occupies DMRS ports with the number corresponding to the third subset.

Optionally, comprising: the preamble comprises a plurality of subsets, and the payload sent together with the preamble in the third subset occupies a DMRS port corresponding to the third subset, including: the port number of the DMRS corresponding to the third subset is N1 or N2, wherein a ceil function is executed on a quotient of N and X to obtain a numerical value N1, or a floor function is executed on the quotient to obtain a numerical value N2, wherein; the number of all lead codes is N, and the number of all subsets is X.

Optionally, the ceil function is used to return a minimum integer greater than or equal to a specified expression. The floor function is used to take the largest integer no larger than a specified expression.

Optionally, the preamble includes multiple subsets, and a payload transmitted together with the preamble in a third subset occupies a DMRS port corresponding to the third subset, including: the number of DMRS ports corresponding to the third subset is p, wherein p is an integer, and the value of p is equal to the number of lead codes in the third subset; and p does not exceed the total number of orthogonal DMRS ports in 1 RB, or p exceeds the total number of orthogonal DMRS ports in 1 RB.

Optionally, a preset mapping relationship exists between the DMRS port resource occupied by the payload and the preamble, and includes: the preamble comprises a plurality of subsets, and when the number of the preambles in a fourth subset is less than or equal to a first value, a fourth payload and a fifth payload do not occupy the same DMRS port in the same RB, wherein the fourth payload is transmitted together with the preamble in the fourth subset, the fifth payload is transmitted together with the preamble in the fifth subset, and the first value is the number of DMRS ports in one RB in a DMRS pattern currently used for transmission or in a PRB.

Optionally, a preset mapping relationship exists between the DMRS port resource occupied by the payload and the preamble, and includes: the method comprises the steps of coding a plurality of preamble codes into a plurality of sets, and when the number of the preamble codes in a sixth subset is larger than a first value, a sixth payload and a seventh payload occupy the same DMRS port in the same RB, wherein the sixth payload and the preamble codes in the sixth subset are sent together, the seventh payload and the preamble codes in a seventh subset are sent together, and the first value is the number of one RB in a DMRS pattern adopted by current transmission or the DMRS port in a PRB.

Optionally, the first value is the number of DMRS ports in one RB in a DMRS pattern currently used for transmission, and includes: when a (New Radio, NR for short) NR type1 pattern is used for DMRS in current transmission, one RB or PRB includes 8 DMRS ports, and the first value is 8; when the DMRS adopts an NR type2 pattern in the current transmission, one RB or PRB includes 12 DMRS ports, and the first value is 12.

Optionally, a preset mapping relationship exists between the time domain resource occupied by the payload and the time domain resource occupied by the preamble, and includes: and the time domain resource occupied by the effective load is the nearest subframe behind the subframe occupied by the lead code. The nearest subframe after the subframe occupied by the preamble can be as shown in fig. 4.

Optionally, a preset mapping relationship exists between the frequency domain resources occupied by the payload and the frequency domain resources occupied by the preamble, and the preset mapping relationship includes: the frequency domain resources occupied by the payload do not overlap with the frequency domain resources occupied by the preamble.

Optionally, a preset mapping relationship exists between the time domain resource occupied by the payload and the time domain resource occupied by the preamble, and the preset mapping relationship includes one of: the time domain resource occupied by the effective load is the nearest available subframe behind the subframe occupied by the lead code; the number of the subframe occupied by the lead code is x, the time domain resource occupied by the effective load is the xth available subframe after the subframe occupied by the lead code, wherein x is an integer. Here, X is equivalent to X _ offset in another embodiment. The available subframes, that is, the unoccupied subframes, may be uplink subframes or subframes with uplink symbols, or subframe X as shown in fig. 5.

Optionally, there is a preset mapping relationship between the frequency domain resources occupied by the payload and the frequency domain resources occupied by the preamble, where the preset mapping relationship includes one of: frequency domain resources occupied by the payload are not overlapped with frequency domain resources occupied by the preamble; the frequency domain resources occupied by the payload overlap with the frequency domain resources occupied by the preamble.

According to an embodiment of the present application, there is also provided a resource allocation method, and fig. 3 is a second flowchart of the resource allocation method according to the embodiment of the present application, where the scheme may be used in a communication node such as a base station, and includes the following steps:

s302, receiving a sending signal of a sending end;

s304, the sending signal comprises a Preamble and an effective load payload, and the resource occupied by the effective load and the Preamble have a preset mapping relation.

By adopting the scheme, both communication parties know the preset mapping relation, the sending end does not need to additionally consume signaling resources to indicate resources occupied by the effective load, the signaling resources are saved through a recessive indication mode on the premise of ensuring the channel estimation accuracy of the receiving end, and the problem that the signaling resources are consumed when the resources used by the effective load are indicated in the related technology is solved.

Optionally, the resources occupied by the payload and the preamble have a preset mapping relationship, including at least one of: a preset mapping relation exists between the resource block RB occupied by the effective load and the lead code; a preset mapping relation exists between demodulation reference signal port DMRS port resources occupied by the effective load and the lead code; a preset mapping relation exists between the time domain resources occupied by the effective load and the time domain resources occupied by the lead code; and the frequency domain resources occupied by the effective load and the frequency domain resources occupied by the lead code have a preset mapping relation.

Optionally, a preset mapping relationship exists between the resource occupied by the payload and the preamble, and includes at least one of: a Resource Block (RB for short) occupied by the effective load has a preset mapping relation with the lead code; a preset mapping relation exists between demodulation reference signal port DMRS port resources occupied by the effective load and the lead code; a preset mapping relation exists between the time domain resources occupied by the effective load and the time domain resources occupied by the lead code; and the frequency domain resources occupied by the effective load and the frequency domain resources occupied by the lead code have a preset mapping relation.

Optionally, a preset mapping relationship exists between the resource block RB occupied by the payload and the preamble, and includes one of: the preamble comprises a plurality of subsets, and the payload transmitted together with the preamble in a first subset occupies one or more Physical Resource Blocks (PRBs) corresponding to the first subset; the preamble includes a plurality of subsets, and the payload transmitted with the preamble in a second subset occupies resource blocks, RBs, corresponding to the second subset, wherein the RBs include one or more PRBs.

Optionally, at least one of: the total bandwidth occupied by all payloads can be divided into x _ part groups, and the value of x _ part is one of the following values: 2,3,4,5,6,12; one preamble corresponds to one group of PRBs, wherein the number of the group of PRBs belongs to a set {1,2,3,4,6,8,9}, or the number of the PRBs in 1 group does not exceed 12 PRBs; one preamble corresponds to a set of RBs, wherein the RBs of two different sets are orthogonal in frequency domain, or the frequency domains partially overlap, or the frequency domains completely overlap.

Optionally, a preset mapping relationship exists between the DMRS port resource occupied by the payload and the preamble, and includes: the preamble comprises a plurality of subsets, and a payload transmitted together with the preamble in a third subset occupies a DMRS port corresponding to the third subset.

Optionally, comprising: the preamble comprises a plurality of subsets, and the payload sent together with the preamble in the third subset occupies a DMRS port corresponding to the third subset, including: the number of DMRS ports corresponding to the third subset is N1 or N2, wherein a ceil function is executed on a quotient of N and X to obtain a value N1, or a floor function is executed on the quotient to obtain a value N2, wherein the value N1 is obtained; the number of all lead codes is N, and the number of all subsets is X.

Optionally, the ceil function is used to return a minimum integer greater than or equal to a specified expression. The floor function is used to take the largest integer not larger than the specified expression.

Optionally, the method further comprises at least one of: the time domain resource occupied by the effective load and the time domain resource occupied by the lead code have a preset mapping relation, and the method comprises the following steps: the time domain resource occupied by the effective load is a subframe nearest to the subframe occupied by the lead code; the frequency domain resources occupied by the payload and the frequency domain resources occupied by the preamble have a preset mapping relationship, including: the frequency domain resources occupied by the payload do not overlap with the frequency domain resources occupied by the preamble.

Optionally, the method further comprises at least one of: the time domain resource occupied by the payload and the time domain resource occupied by the preamble have a preset mapping relationship, which includes one of the following: the time domain resource occupied by the effective load is the nearest available subframe behind the subframe occupied by the lead code; the number of the subframe occupied by the lead code is x, the time domain resource occupied by the effective load is the xth available subframe behind the subframe occupied by the lead code, wherein x is an integer; the frequency domain resource occupied by the payload and the frequency domain resource occupied by the preamble have a preset mapping relationship, which includes one of the following: frequency domain resources occupied by the payload are not overlapped with frequency domain resources occupied by the preamble; the frequency domain resources occupied by the payload overlap with the frequency domain resources occupied by the preamble.

The following description is made in conjunction with another embodiment of the present application.

In the related art, the msgA sent by the terminal to the base station mainly includes a preamble and an effective load payload, and for payload resources, such as time-frequency resources or DMRS resources, if an indication is displayed, additional signaling resources need to be consumed. The application provides a direct mapping method for preamble and payload resources (time-frequency resources or DMRS resources), which can implicitly indicate the time-frequency resources and the DMRS resources used by the payload according to a preamble index.

Another embodiment of the present application includes the following examples:

example one

The 64 preambles constitute 1 set, denoted set a,

a can be seen as being composed of 6 parts, represented by the set { A0 A1 A2 A3 A4 A5}, where Ai represents a subset of a, and A0 A1 A2 A3 A4 A5 is (11,11,11,11,10,10), respectively, i.e., A0 represents 11 preambles in a, A1 represents 11 preambles in a, and similarly A5 represents 10 preambles in a.

Further, the size of Ai, or the number of preambles in Ai, is n1 or n2. For example, n1=11, n2= 10. One calculation method of n1 and n2 is as follows:

n1＝ceil(64/6)+delt＝11,(if delt＝0)；

n2＝floor(64/6)+delt＝10，(if delt＝0)；

the communication system configuration, and the resource used by payload sent with the preamble in Ai is PRBi.

Example two

The Num _ preamble preambles constitute 1 set, denoted as set a.

A can be viewed as consisting of x _ part parts, represented by the set { A0A 1A 2A 3A 4 Ax _ part-1}, where Ai represents a subset of A,

further, the size of Ai or the number of preambles in Ai is n1 or n2. One calculation method of n1 and n2 is as follows:

n1＝ceil(Num_preamble/x_part)+delt；

n2＝floor(Num_preamble/x_part)+delt；

when x _ part can be evenly divided by Num _ preamble, n1= n2.delt =0,1,2, and the like.

The communication system configuration, and the resource used by the payload sent with the preamble in Ai is PRBi.

Alternatively, the first and second electrodes may be,

the communication system is configured, and the resources used by payload transmitted together with preamble in Ai are PRB2i to PRB2i +1.

Alternatively, the first and second electrodes may be,

the communication system configuration, and the resource used by payload sent with preamble in Ai is ith block RB, and 1 RB may be composed of 1 or more PRBs.

Alternatively, the total bandwidth occupied by all payload can be divided into x _ part groups, where x _ part is a natural number such as 2,3,4,5,6,12.

Optionally, the number of 1 group of PRBs belongs to the set {1,2,3,4,6,8,9}, or the number of PRBs in 1 group does not exceed 12 PRBs at most, or the number of 1 group of PRBs is a power of 2.

Alternatively, the RBs of any 2 groups may be orthogonal in the frequency domain, may partially overlap, and may completely overlap.

Optionally, the broadcast signaling indicates the total bandwidth occupied by all payload, i.e. its time-frequency position offset from the PRACH resource of the physical random access channel.

Example III

When a new wireless NR Type2 pattern is used for a Demodulation Reference Signal (DMRS), there are 12 DMRS ports of 1 RB or 1 PRB.

Based on the configuration of the first example or the second example, the DMRS port resources used by the PUSCH transmitted together with the preamble in Ai are pi ports,

for example, the communication system configuration, and the DMRS port resources used by the PUSCH and transmitted together with the preamble in A0 A1 A2 A3 A4 A5 are p0 p1 p2 p3 p4 p5 ports, respectively.

More specifically, the communication system configuration, and the DMRS port resources used by the PUSCH transmitted together with the preamble in A0 A1 A2 A3 A4 A5 are 11,11,11,11,10,10 ports, respectively,

further, with respect to the pi value, pi = n1 or n2. For example, n1=11, n2= 10. One calculation method of n1 and n2 is as follows:

n1＝ceil(Num_preamble/x_part)+delt；

n2＝floor(Num_preamble/x_part)+delt；

in the above scheme, the preamble subsets are configured to respectively correspond to (11,11,11,11,10,10 ports) and have performance gain relative to (12,12,12,12,12,12 ports), because interference between DMRS ports, especially mutual interference between two ports of frequency domain OCC (Orthogonal Cover Code) is reduced. For example, the channel estimation performance of the multiplexing of 12 DMRS ports is worse than that of the multiplexing of 11 DMRS ports, and the difference is more obvious when the time offset is larger.

Example four

When the DMRS adopts an NR Type1 pattern, there are 8 DMRS ports of 1 RB or 1 PRB. When the DMRS employs an NR Type2 pattern, there are 12 DMRS ports of 1 RB or 1 PRB. It is assumed that DMRS port of 1 RB or 1 PRB has Num _ port ports, num _ port =8 or 12 or others.

When the value n1 or n2 of preamble in one set Ai is less than Num _ port, the communication system configuration, the DMRS port used by the PUSCH transmitted together with preamble _ i1 and the DMRS port used by the PUSCH transmitted together with preamble _ i2 will not be the same DMRS port in 1 RB.

The preamble _ i1 or the preamble _ i2 is any two different preambles in the preamble set a.

When n1 or n2 is greater than Num _ port, the communication system configuration may correspond multiple preambles to the same DMRS port in the same RB, in other words, the communication system configuration may set the DMRS port used by the PUSCH transmitted together with preamble _ i1 and the DMRS port used by the PUSCH transmitted together with preamble _ i2 to the same DMRS port in 1 RB.

Example five

According to the configuration of the example one-example three-communication system, a transmitter UE randomly selects 1 preamble, and the UE transmits a PUSCH on an RB corresponding to the preamble _ index. And uses the DMRS _ port of the DMRS port _ index in the corresponding RB.

For example, preamble _ index =25, which belongs to the 3 rd Preamble subset (ceil (25/11) + delt =2 if delt = 0).

Dmrsoport _ index = (25-sum (p 0, p 1))% 11=3, where p0 is 11 and p1 is 11.

That is, the UE transmits PUSCH on this 3 rd RB and uses the 3 rd DMRS _ port in the 3 rd RB.

Optionally, the sending signal includes a payload, where the number of ports occupied by the payload is a second value that is i times, where the second value is the number of DMRS ports in one physical resource block PRB in a DMRS pattern currently used for transmission, where i is an integer, and i is smaller than the number of physical resource blocks. That is, there is no preamble in the transmission signal, and only a payload portion, where the payload portion may or may not include the DMRS. When the DMRS is contained, the corresponding relationship between the PRB used by the payload and the DMRS port is: the number of available ports of the payload is Num _ dmrsoport, or the number of available ports of the payload is Num _ dmrsoport; i < = number of PRBs. Num _ dmrport is 8,12.

Example six

It should be noted that, in the sixth example, when 1 RB is occupied by 1 UE, the mapping relationship between the preamble and the payload resource is described. It includes the case where 1 UE occupies 1 or more PRBs.

Table 1 is a first table according to a sixth example of the present application, and as shown in table 1, a mapping table of Preamble index, physical resource block index, RB index, and demodulation reference signal index, DMRS index is shown, where the table corresponds to a case where payload occupies 6 RB.

TABLE 1

Table 2 is a table two of example six according to another embodiment of the present application, and as shown in table 2, a mapping table of Preamble index, physical resource block RB index, and DMRS index corresponds to the following cases: there are 48 preambles. payload occupies 6RB, DMRS can be 1-8 ports of Type1, and can also be 1-8 ports of Type 2.

TABLE 2

Table 3 is table three of example six according to another embodiment of the present application, and as shown in table 3, a mapping table of Preamble index, RB index, DMRS index is given, corresponding to the following case: there are 48 preambles, payload occupies 4RB.

TABLE 3

Table 4 is table four according to example six of another embodiment of the present application, and as shown in the table, a mapping table of Preamble index, RB index, DMRS index is given, corresponding to the following case: there are 48 preambles, payload occupies 3RB. There are 12 pairs of preamble index mapped to the same DMRS port, specifically as shown in table 4, for example, preamble index 0 and preamble index 36 are both mapped to DMRS index 0 of RB index 0. And in the same way, other 11 pairs of preamble indexes are mapped to the same DMRS port.

TABLE 4

Example seven

And determining the time-frequency domain resources occupied by payload according to the time-frequency domain resources occupied by the preamble.

Fig. 4 (a) is a diagram illustrating determination of time domain resources of a payload according to example seven, where payload is transmitted in a subframe immediately following a subframe in which a preamble is transmitted.

The time domain resource occupied by the effective load is the nearest available subframe behind the subframe occupied by the lead code; or, transmitting payload in a nearest available uplink subframe after the subframe transmitting preamble; or the time domain resource occupied by the effective load is determined by the subframe number x occupied by the lead code and is the xth available subframe behind the subframe occupied by the lead code; or, payload is transmitted in the X _ offset available subframe after the subframe in which the preamble is transmitted, and X _ offset is a positive integer.

Optionally, the frequency domain resources occupied by the payload and the frequency domain resources occupied by the preamble are not overlapped or are overlapped. Fig. 4 (b) is a diagram of determining frequency-domain resources of a payload according to example seven, and as shown in fig. 4 (b), the frequency-domain resources occupied by the payload do not overlap with the frequency-domain resources occupied by the preamble.

Fig. 5 is a schematic diagram two illustrating the determination of the time domain resource of the payload according to the seventh example, as shown in fig. 5, the time domain resource occupied by the payload is the xth available subframe after the subframe of the preamble, that is, subframe0 is used for transmitting the preamble, subframe1 is used for transmitting the downlink subframe, and subframe x is used for transmitting the payload.

By adopting the scheme, the design can be simplified, and the signaling overhead can be reduced. And the channel estimation performance can be improved through reasonable and uniform mapping of preamble, payload time-frequency resources and DMRS resources.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.

Example two

In this embodiment, a resource allocation apparatus is further provided, which is used to implement the foregoing embodiments and preferred embodiments, and details of which have been already described are not described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

According to another embodiment of the present application, there is provided a resource configuration apparatus, which may be used in a mobile terminal, including:

the device comprises a sending module and a receiving module, wherein the sending module is used for sending a signal, the signal comprises a Preamble and an effective load payload, and a preset mapping relation exists between resources occupied by the effective load and the Preamble.

By adopting the scheme, both communication parties know the preset mapping relation, the sending end does not need to additionally consume signaling resources to indicate resources occupied by the effective load, the signaling resources are saved by implicit indication on the premise of ensuring the channel estimation accuracy of the receiving end, and the problem that the signaling resources are consumed when the resources used by the effective load are indicated in the related technology is solved

According to another embodiment of the present application, there is also provided a resource configuration apparatus, which may be used in a base station, including:

the receiving module is used for receiving a signal sent by a sending end, wherein the signal comprises a Preamble and an effective load payload, and a preset mapping relation exists between resources occupied by the effective load and the Preamble.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

EXAMPLE III

According to another embodiment of the present application, there is also provided a resource configuration system, including:

the first communication node is used for sending a signal, wherein the signal comprises a lead code and an effective load, and a preset mapping relation exists between resources occupied by the effective load and the lead code;

and the second communication node is used for receiving the signal and corresponding the lead code to the preset mapping relation.

Alternatively, the first communication node may be a mobile terminal, and the second communication node may be a base station.

Example four

Embodiments of the present application also provide a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:

s1, determining a preset mapping relation between resources occupied by effective loads and lead codes;

and S2, sending a signal according to the preset mapping relation, wherein the signal comprises an effective preamble and an effective load.

Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Embodiments of the present application further provide an electronic device comprising a memory having a computer program stored therein and a processor configured to execute the computer program to perform the steps of any of the above method embodiments.

Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.

Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present application described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present application is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for resource allocation, comprising:

the sending signal comprises a Preamble and an effective load payload, and a preset mapping relation exists between resources occupied by the effective load and the Preamble;

wherein, the resource occupied by the payload and the preamble have a preset mapping relationship, including:

a preset mapping relation exists between demodulation reference signal port DMRS port resources occupied by the effective load and the lead code;

wherein, the DMRS port resource occupied by the payload and the preamble have a preset mapping relationship, including:

the lead code comprises a plurality of subsets, and when the number of the lead codes in a fourth subset is less than or equal to a first value, a fourth effective load and a fifth effective load do not occupy the same DMRS port in the same RB;

and sending the fourth payload together with the preamble in the fourth subset, sending the fifth payload together with the preamble in the fifth subset, wherein the first value is the number of one RB in the DMRS pattern or the DMRS port in the PRB adopted by the current transmission.

2. The method of claim 1, wherein a preset mapping relationship exists between resources occupied by the payload and the preamble, and further comprising at least one of:

a preset mapping relation exists between the resource block RB occupied by the effective load and the lead code;

a preset mapping relation exists between the time domain resources occupied by the effective load and the time domain resources occupied by the lead code;

and a preset mapping relation exists between the frequency domain resources occupied by the effective load and the frequency domain resources occupied by the lead code.

3. The method of claim 2, wherein a preset mapping relationship exists between Resource Blocks (RBs) occupied by the payload and the preamble, and the preset mapping relationship comprises one of the following:

the preamble comprises a plurality of subsets, and the payload transmitted together with the preamble in a first subset occupies one or more Physical Resource Blocks (PRBs) corresponding to the first subset;

the preamble includes a plurality of subsets, and the payload transmitted with the preamble in a second subset occupies resource blocks, RBs, corresponding to the second subset, wherein the RBs comprise one or more PRBs.

4. The method of claim 2, wherein Resource Blocks (RBs) occupied by payloads corresponding to any 2 preambles are orthogonal or completely overlapping, wherein the payload transmitted with the preamble is the corresponding payload.

5. The method of claim 2, wherein the payload corresponding to each preamble occupies the same Resource Block (RB) size, and wherein the payload transmitted with the preamble is the corresponding payload.

6. The method of claim 2, comprising at least one of:

the total bandwidth occupied by all payloads can be divided into x _ part groups, and the value of x _ part is one of the following values: 2,3,4,5,6,12;

one lead code corresponds to one group of PRBs, wherein the number of the group of PRBs belongs to the set {1,2,3,4,6,8,9}, or the number of the PRBs in 1 group does not exceed 12 PRBs;

7. The method of claim 2, wherein a preset mapping relationship exists between DMRS port resources occupied by the payload and the preamble, and the method comprises:

the preamble comprises a plurality of subsets, and a payload transmitted together with the preamble in a third subset occupies a DMRS port corresponding to the third subset.

8. The method of claim 7, comprising: the preamble comprises a plurality of subsets, and the payload sent together with the preamble in the third subset occupies a DMRS port corresponding to the third subset, including:

the number of DMRS ports corresponding to the third subset is N1 or N2, wherein a ceil function is executed on a quotient of N and X to obtain a value N1, or a floor function is executed on the quotient to obtain a value N2, wherein the value N1 is obtained; the number of all lead codes is N, and the number of all subsets is X.

9. The method of claim 7, wherein the preamble comprises a plurality of subsets, and wherein a payload sent with the preamble in a third subset occupies a corresponding number of DMRS ports in the third subset, comprising:

the number of DMRS ports corresponding to the third subset is p, wherein p is an integer, and the value of p is equal to the number of lead codes in the third subset; and p does not exceed the total number of orthogonal DMRS ports in 1 RB, or p exceeds the total number of orthogonal DMRS ports in 1 RB.

10. The method of claim 1, wherein the first value is a number of DMRS ports in an RB in a DMRS pattern currently used for transmission, and comprises:

when a new wireless type 1NR type1 pattern is adopted by the DMRS in the current transmission, 8 DMRS ports are included in one RB or PRB, and the first value is 8;

when the DMRS adopts a new wireless type 2NR type2 pattern in the current transmission, one RB or PRB comprises 12 DMRS ports, and the first value is 12.

11. The method of claim 2, further comprising at least one of:

the time domain resource occupied by the effective load and the time domain resource occupied by the lead code have a preset mapping relation, and the method comprises the following steps: the time domain resource occupied by the effective load is a subframe nearest to the subframe occupied by the lead code;

the frequency domain resources occupied by the payload and the frequency domain resources occupied by the preamble have a preset mapping relationship, including: the frequency domain resources occupied by the payload do not overlap with the frequency domain resources occupied by the preamble.

12. The method of claim 2, further comprising at least one of:

the time domain resource occupied by the payload and the time domain resource occupied by the preamble have a preset mapping relationship, which includes one of the following: the time domain resource occupied by the effective load is the nearest available subframe behind the subframe occupied by the lead code; the number of the subframe occupied by the lead code is x, the time domain resource occupied by the effective load is the xth available subframe behind the subframe occupied by the lead code, wherein x is an integer;

the frequency domain resource occupied by the payload and the frequency domain resource occupied by the preamble have a preset mapping relationship, which includes one of the following: frequency domain resources occupied by the payload are not overlapped with frequency domain resources occupied by the preamble; the frequency domain resources occupied by the payload overlap with the frequency domain resources occupied by the preamble.

13. A method for resource allocation, comprising:

receiving a sending signal of a sending end, wherein the sending signal comprises a Preamble and an effective load payload, and a preset mapping relation exists between resources occupied by the effective load and the Preamble;

and sending the fourth effective load together with the preamble in the fourth subset, sending the fifth effective load together with the preamble in the fifth subset, wherein the first value is the number of DMRS ports in one RB (radio bearer) or PRB (physical resource block) in the current transmission.

14. The method of claim 13, wherein a preset mapping relationship exists between resources occupied by the payload and the preamble, and further comprising at least one of:

and the frequency domain resources occupied by the effective load and the frequency domain resources occupied by the lead code have a preset mapping relation.

15. A resource allocation apparatus, comprising:

the device comprises a sending module, a receiving module and a processing module, wherein the sending module is used for sending a signal, the signal comprises a Preamble and an effective load payload, and a preset mapping relation exists between resources occupied by the effective load and the Preamble;

16. A resource allocation apparatus, comprising:

the receiving module is used for receiving a signal sent by a sending end, wherein the signal comprises a Preamble and an effective load payload, and a preset mapping relation exists between resources occupied by the effective load and the Preamble;

a preset mapping relation exists between demodulation reference signal port (DMRS) port resources occupied by the effective load and the lead code;

17. A resource allocation system, comprising:

the second communication node is used for receiving the signal and corresponding the lead code to the preset mapping relation;

18. A storage medium, characterized in that a computer program is stored in the storage medium, wherein the computer program is arranged to perform the method of any of claims 1 to 14 when executed by a processor.

19. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 14.