CN109803411B

CN109803411B - Resource mapping method, resource determining method, network side equipment and user terminal

Info

Publication number: CN109803411B
Application number: CN201711148878.XA
Authority: CN
Inventors: 沈晓冬; 孙鹏; 潘学明; 丁昱
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2021-09-14
Anticipated expiration: 2037-11-17
Also published as: CN109803411A

Abstract

The invention provides a resource mapping method, a resource determining method, network side equipment and a user terminal, and belongs to the technical field of communication. The resource mapping method is applied to network side equipment and comprises the following steps: determining resource mapping configuration information of a physical downlink control channel, wherein the resource mapping configuration information at least comprises parameters of a blocky interleaver adopted by resource mapping; and mapping the virtual resource block to the physical resource block according to the resource mapping configuration information, and sending the resource mapping configuration information to the user terminal. The technical scheme of the invention can meet the resource mapping requirements of two different PRG types, namely type1 and type 2.

Description

Resource mapping method, resource determining method, network side equipment and user terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a resource mapping method, a resource determining method, a network side device, and a user terminal.

Background

The existing communication protocol does not support resource mapping of DVRB (distributed VRB) under large resource allocation and large bandwidth configuration, and because larger bandwidth and CBG transmission are introduced in 5G, under the condition of large resource allocation, DVRB mapping needs to be supported in such a scenario.

Under the conditions of smaller resource allocation and larger bandwidth allocation, such as over 50 PRBs (physical resource block) specified in LTE (Long Term Evolution), LTE supports the adoption of DVRB mapping with smaller scale and frequency interval of 1/4 magnitude, and the application of smaller frequency interval allows the distributed transmission to be limited to a part of the whole cell bandwidth.

In NR (new radio, new air interface), since the above schemes of large resource allocation and small resource allocation both have requirements, a converged scheme is required to implement the above two schemes.

In addition, since NR employs two different types of type1 and type2 for the design of PRG, it is necessary to separately design different mapping schemes of DVRBs for this type and determine specific parameters of an interleaver whose DVRBs are mapped.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a resource mapping method, a determining method, a network side device and a user terminal, which can meet the resource mapping requirements of two different PRG types, namely type1 and type 2.

To solve the above technical problem, embodiments of the present invention provide the following technical solutions:

in a first aspect, an embodiment of the present invention provides a resource mapping method, applied to a network side device, including:

determining resource mapping configuration information of a physical downlink control channel, wherein the resource mapping configuration information at least comprises parameters of a blocky interleaver adopted by resource mapping;

and mapping the virtual resource block to the physical resource block according to the resource mapping configuration information, and sending the resource mapping configuration information to the user terminal.

In a second aspect, an embodiment of the present invention provides a resource determining method, applied to a user terminal, including:

receiving resource mapping configuration information of a physical downlink control channel sent by network side equipment, wherein the resource mapping configuration information at least comprises parameters of a block interleaver adopted by resource mapping;

and determining the parameters of the block interleaver adopted by the resource mapping according to the resource mapping configuration information.

In a third aspect, an embodiment of the present invention provides a network side device, including:

a processing module, configured to determine resource mapping configuration information of a physical downlink control channel, where the resource mapping configuration information at least includes a parameter of a block interleaver used for resource mapping;

and the sending module is used for mapping the virtual resource block to the physical resource block according to the resource mapping configuration information and sending the resource mapping configuration information to the user terminal.

In a fourth aspect, an embodiment of the present invention provides a user terminal, including:

a receiving module, configured to receive resource mapping configuration information of a physical downlink control channel sent by a network side device, where the resource mapping configuration information at least includes a parameter of a block interleaver used for resource mapping;

and the processing module is used for determining the parameters of the block interleaver adopted by the resource mapping according to the resource mapping configuration information.

In a fifth aspect, an embodiment of the present invention provides a network side device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the resource mapping method as described above.

In a sixth aspect, an embodiment of the present invention provides a user terminal, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the resource determination method as described above.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the resource mapping method or implements the steps of the resource determining method.

The embodiment of the invention has the following beneficial effects:

in the above scheme, the network side device sends resource mapping configuration information of a physical downlink control channel to the user terminal, where the resource mapping configuration information carries parameters of a block interleaver used for resource mapping, and the user terminal can determine the parameters of the block interleaver used for resource mapping according to the resource mapping configuration information, so as to receive downlink data.

Drawings

Figure 1 is a schematic diagram of a VRB that may be used for distributed scheduling;

fig. 2 is a schematic diagram of DVRB mapping after configuration into GAP1 and GAP 2;

FIG. 3 is a flowchart illustrating a resource mapping method according to an embodiment of the invention;

FIG. 4 is a flowchart illustrating a resource determination method according to an embodiment of the present invention;

fig. 5 is a block diagram of a network device according to an embodiment of the present invention;

FIG. 6 is a block diagram of a user equipment according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a network device according to an embodiment of the present invention;

fig. 8 is a schematic composition diagram of a user terminal according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

When a network side device determines which RBs (resource blocks) are allocated to a specific UE (User Equipment), the network side device may take the downlink channel quality related to the time domain and the frequency domain into account. That is, channel-dependent frequency selective scheduling takes into account channel variations, such as those caused by frequency selective fading, and then allocates those RBs with good channel quality (not necessarily continuous) to the UE, which may significantly improve the rate of the UE and the throughput of the entire cell.

However, the frequency selective scheduling requires the UE to report the quality of the downlink channel to the network side device, which may cause a large signaling overhead, and meanwhile, it is required to ensure that the network side device can successfully and timely receive the quality information of the downlink channel, so as to avoid receiving no or outdated information. Therefore, in some scenarios, frequency selective scheduling is not applicable, for example: for low-speed services, such as voice services, feedback signaling related to frequency selection causes relatively large overhead and is not worth paying; in a scenario where the UE is moving at high speed, such as on high-speed running high-speed rail, it is difficult or impossible to track the real-time channel quality and thus the channel quality accuracy required for frequency selective scheduling cannot be provided.

In this case, an alternative scheme is to distribute downlink transmission to non-consecutive resource blocks in the frequency domain to obtain frequency diversity gain, thereby improving the reliability of transmission.

In order to realize the above two different purpose resource mapping, the concept of PRB and VRB (virtual resource block) is introduced. The PRB represents a physical resource block, the VRB represents a virtual resource block, the network side equipment generally indicates resource information to the user terminal through the VRB, specific physical resource mapping can be obtained after the physical resource mapping is mapped to the corresponding PRB through the VRB, a general centralized PRB represents that resources of one user terminal occupy continuous PRB, a distributed PRB represents that one user terminal occupies discontinuous PRB resources on the bandwidth, and therefore frequency diversity gain of a system can be improved, and anti-interference capability is improved

In LTE, 2 types of VRBs are defined: centralized VRBs (localized VRBs, LVRBs) and distributed VRBs (distributed VRBs, DVRBs).

In the centralized resource mapping mode, the VRB pairs and PRB pairs are in one-to-one correspondence, that is, the VRB position is the PRB position, and the RB resource block number n_PRB＝n_VRBRange is 0 to

Number of resource blocks of downlink VRB, n_pRBNumbering a downlink PRB;

in the distributed resource mapping method, VRB pairs and PRB pairs do not correspond one-to-one, consecutive VRB numbers are mapped to non-consecutive PRB numbers, and 2 slots in a subframe have different mapping relationships, as shown in fig. 1, and "distributed" resource allocation is achieved by this method. Whether consecutive VRB pairs are mapped onto non-consecutive PRB pairs or each PRB pair is separated so that the resource transmission of two RBs of one PRB pair has a certain frequency spacing (which can be considered as slot-based frequency hopping), the purpose is to achieve diversity effect on frequency.

It is noted that not all VRBs may be used for interleaving, if n is used_VRBTo indicate the frequency location of the VRB, then the range of VRBs that can be used for interleaving is

Only VRBs within this range can perform RB pair interleaving, and distributed VRB resource allocation can be performed. The main purpose of this is to ensure that when different ues with multiple resource allocation schemes reuse resources, the possibility of resource collision is reduced, i.e. distributed resources are concentrated on some physical resources.

As shown in FIG. 1, if n is_VRBThe range of (1) is 0 to 10, and then when the network side device performs distributed resource scheduling, the serial number of the RB may be allocated to 11 VRBs, namely 0 to 10 VRBs. Note the parameters here

Number of RBs not of downlink bandwidth

Parameter(s)

The protocol according to LTE is calculated as follows:

(1) if GAP1 is used, then

Such as the 5MHz bandwidth that is currently available,

then

min (12,25-12) ═ 24. In the case of a 10MHz bandwidth,

then

Therefore, for a 10MHz bandwidth, only 46 VRB pairs can perform frequency interleaving of RBs when the frequency interval GAP1 is adopted, and distributed RB allocation can be performed.

(2) If GAP2 is used, then

Such as the current bandwidth of 10MHz,

then

Therefore, for a 10MHz bandwidth, only 36 VRB pairs can perform frequency interleaving of RBs when the frequency interval GAP2 is adopted, and distributed RB allocation can be performed.

Wherein

And

are defined by table 1, respectively:

table 1 (from TS36.211, section 6.2.3.2)

Typically, an interleaver is used to perform mapping of VRBs to PRBs, and in order to implement DVRBs, i.e. to make the mapped resources as distributed as possible, it is required that the mapped logical resources are distributed as evenly as possible over the entire physical resources.

Block interleaver (Block interleaving) can be used to accomplish this, by writing VRBs from rows and reordering and scrambling VRBs from column reads. The two most important parameters for a block interleaver are to determine its number of rows and columns.

In the LTE design, as described above, since the resources mapped by the DVRB are distributed over the entire bandwidth, which may cause fragmentation of the resources to some extent, it is necessary to limit the resource mapping to a large bandwidth.

The following principles are therefore specified in the design of 4G LTE:

(1) if DCI (Downlink Control Information) format 1A/1B/1D uses a distributed VRB allocation mode, and the CRC (Cyclic Redundancy Check) of the DCI is scrambled by a C-RNTI (Cell Radio Network Temporary Identifier), when the Downlink bandwidth is 6-49 RB, the number of VRBs allocated to corresponding UE can be from 1 to at most

This value is very close to the system bandwidth, specified in the protocol; however, when the downlink bandwidth is 50-110 RB, the number of VRBs allocated to the corresponding UE can be from 1 to 16 at most.

(2) Distributed VRB to PRB mapping avoids that the continuously allocated RB length is larger than half the system bandwidth, which may lead to fragmentation of resources.

Examples are as follows:

when configured as GAP1 and GAP2 as under 50PRB configuration, the resource situation after mapping of the first 16 VRBs is shown in fig. 2, where the number is the logical number of the VRB.

In LTE, because DVRB also uses intra-subframe hopping, i.e., two slots in a subframe use frequency hopping, the mapping of the front and back slots is drawn in fig. 2. It can be seen that the main difference between DVRB mapping for GAP1 and DVRB mapping for GAP2 is the distribution bandwidth of the mapped resources. The distribution bandwidth of the GAP1 is equal to the system bandwidth, and the distribution bandwidth of the GAP2 is about 1/2 orders of magnitude of the system bandwidth.

PRB bundling, i.e. physical resource block bundling. In LTE, in order to improve the quality of channel estimation, it is assumed that multiple PRBs use the same Precoder (shaped vector), so that a receiving end (i.e. a user terminal side) can combine multiple PRBs to perform channel estimation, and such configuration is called PRG (Precoding Resource block Groups) configuration in LTE.

The UE may assume that the precoding granularity is multiple resource blocks (PRBs) in the frequency domain when under one serving cell. The precoding resource block group (PRGS) size division depends on the system bandwidth sum, and the PRG is composed of consecutive PRBs. The UE may assume that all the predetermined PRBs apply to the same Precoder in one PRG. The size of the PRG is related to the bandwidth of the system, and the LTE specifications are shown in table 2:

TABLE 2

Where P' is the number of PRBs contained in one PRG, i.e., the PRG size (size).

In the resource allocation of type 0 in LTE, the resource allocated to a UE is represented by a bitmap (bitmap), where each bit in the bitmap represents a resource block group, i.e., RBG, a 1 indicates that a corresponding resource block is allocated to the UE, and a 0 indicates that the resource block is not allocated. The resource block group RBG is composed of one or more contiguous VRBs, the VRBs are of a centralized type, and the size P (number of RBs included) of the RBG is related to the system bandwidth, as shown in table 3:

TABLE 3

The PRG configuration in the 5G NR may have two types, type1 and type2, where type1 refers to a set of PRG sizes configured or predefined by the network side device, for example, [1,2,4,8,16], and the PRG size used by the user terminal is dynamically indicated through L1 signaling; type2 means that the PRG size is equal to the number of resources that are continuously scheduled.

The resources in the NR support two types of resource allocation, a bitmap type (type 0) and a contiguous resource allocation type (type 1).

Type 0: type 0 is in the form of bitmap because each bit of bitmap represents an RBG (resource block group) which represents an RB group whose size may be related to the bandwidth, e.g., 20M system bandwidth, each RBG including 4 RBs, so that 20M bandwidth has 25 RBGs, and the bitmap in the corresponding DCI has 25 bits. If a certain RBG is allocated to the UE, the bit position 1 corresponding to the bitmap of the DCI corresponding to the UE is enough.

Type 1: the resource allocated to the UE is a continuous segment of VRBs, and the mapping of the VRBs to the actual physical resource PRBs may be localized (localized) or distributed (distributed).

The existing protocol does not support resource mapping of DVRB under larger resource allocation and larger bandwidth configuration, and because larger bandwidth and CBG transmission are introduced in 5G, DVRB mapping needs to be supported under such a scenario under the condition of larger resource allocation.

Since NR employs two different types of type1 and type2 for the design of PRG, it is necessary to separately design different mapping schemes of DVRBs for this type and determine specific parameters of an interleaver whose DVRBs are mapped.

An embodiment of the present invention provides a resource mapping method, which is applied to a network side device, and as shown in fig. 3, the method includes:

step 101: determining resource mapping configuration information of a physical downlink control channel, wherein the resource mapping configuration information at least comprises parameters of a blocky interleaver adopted by resource mapping;

step 102: and mapping the virtual resource block to the physical resource block according to the resource mapping configuration information, and sending the resource mapping configuration information to the user terminal.

In this embodiment, the network side device sends resource mapping configuration information of a physical downlink control channel to the user terminal, where the resource mapping configuration information carries parameters of a block interleaver used for resource mapping, and the user terminal can determine the parameters of the block interleaver used for resource mapping according to the resource mapping configuration information, so as to receive downlink data.

Further, the parameters of the block interleaver include at least one of: interlaced granularity N_unitNumber of rows of the interleaving matrix, number of columns of the interleaving matrix N_colWherein N is_unitIn units of RB.

Further, the resource mapping configuration information is determined by a configuration type of a precoding resource block PRG, where the configuration type of the PRG includes type1 and type2, where type1 refers to a set of PRG sizes configured or predefined by the network side device, and the PRG size used by the user terminal is dynamically indicated through L1 signaling; type2 means that the PRG size is equal to the number of resources that are continuously scheduled.

Further, the method further comprises:

sending the configuration type of the PRG to the user terminal so that the user terminal can select a resource mapping configuration mode from a plurality of resource mapping configuration modes according to the configuration type of the PRG, wherein the plurality of resource mapping configuration modes are a plurality of pre-configured resource mapping configuration modes or a plurality of resource mapping configuration modes which are sent to the user terminal in advance, and each resource mapping configuration mode comprises at least one of the following: the method comprises the steps of obtaining the granularity of the interweaving, obtaining the number of rows of the interweaving matrix, obtaining the number of columns of the interweaving matrix and obtaining the number of rows of the interweaving matrix.

Detailed description of the preferred embodiment

In this embodiment, the network side device sends the configuration type of the PRG to the user terminal, and the user terminal determines, according to the configuration type of the PRG, one DVRB mapping manner (including an interleaving granularity, a row number and/or a column number of an interleaving matrix (block interleaver)) in a group of DVRB mapping manners, where sending the resource mapping configuration information to the user terminal includes:

sending the configuration type of the PRG to the user terminal so that the user terminal can select a resource mapping configuration mode from a plurality of resource mapping configuration modes according to the configuration type of the PRG, wherein the plurality of resource mapping configuration modes are a plurality of pre-configured resource mapping configuration modes or a plurality of resource mapping configuration modes which are sent to the user terminal in advance, and each resource mapping configuration mode comprises the interleaving granularity, and/or the row number and/or the column number of an interleaving matrix.

Specifically, when the configuration of the PRG is type X, the granularity N of interleaving under that type is determined_unitP', i.e. all VRBs are classified by PRG size P

Group (d);

when the configuration of the PRG is type X, the number of columns (or the number of rows) of the interleaving matrix is determined, and

the group applies block interleaver, i.e., the reordering and scrambling of the VRBs is done by writing the VRBs from the rows and reading from the columns, or the reordering and scrambling of the VRBs is done by writing the VRBs from the columns and reading from the rows.

Wherein the interleaving granularity N of the interleaver_unitMay be greater than or equal to P ', and may be, for example, a multiple of P'.

In a specific implementation manner, the granularity of the PRG type1 interlace is implicitly obtained by the user terminal (implicit), and the granularity of the PRG type2 interlace is specified by the protocol or configured by the RRC, that is:

when the configuration type of the PRG is type1, the granularity of the interleaving is determined by the PRG size signaled to the user terminal by the network side device, and all VRBs are divided into PRG size P 'with PRG size P' as the granularity

Group (d);

when the PRG is of type2, the granularity of the interleaving is a preconfigured value N_unitAll VRBs are set to a certain fixed value N_unitIs divided into granularity

The number of the groups is set to be,

wherein N is_unitIs specified by the protocol as a fixed value,

(1) this value may be the maximum value among all the candidate PRG sizes in type 1.

(2) This value may also be a fixed value, e.g. 4, specified in the protocol.

Or N_unitAnd the network side equipment configures the user terminal through RRC signaling.

In another specific implementation, the granularity of interleaving of the PRG type1 is configured through RRC signaling, the granularity of interleaving of the PRG type2 is specified by a protocol or configured through RRC signaling, that is:

when the configuration type of the PRG is type1, the granularity of the interleaving is the size of the PRG configured to the user terminal by the network side device through signaling;

and when the configuration type of the PRG is type2, the granularity of the interleaving is a preconfigured value or the network side equipment configures the user terminal through RRC signaling.

Such as: when the configuration of the PRG is type1, i.e. the specific PRG size is signaled according to the signaling (RRC or L1 signaling), all VRBs are divided into PRG size P' as granularity

Group, P' is known from RRC signaling configuration.

When the PRG is configured in type2, i.e. PRG size is the number of consecutive PRBs, all VRBs are at a certain fixed value N_unitIs divided into granularity

The number of the groups is set to be,

wherein N is_unitIs specified by the protocol as a fixed value,

(2) This value may also be a fixed value, e.g. 4, specified in the protocol.

Detailed description of the invention

In this embodiment, the network side device sends the configuration type of the PRG to the user equipment, so that the user equipment determines the number of columns of the interleaving matrix according to the configuration type of the PRG.

In a specific implementation manner, the user terminal obtains the number of columns of the interleaving matrix under the PRG type1 according to RRC configuration or implicit expression, and the protocol specifies the number of columns of the interleaving matrix under the type 2;

such as: when the configuration of the PRG is type1, i.e. the specific PRG size is signalled (RRC or L1 signalling), for

And (3) grouping the block interleavers, and determining the number of columns of the block interleavers as follows:

(1) the number of columns of the block interleaver is configured by RRC signaling

The network side equipment configures to the user terminal through signaling;

(2) the column number of the block interleaver is a function f (P ') of PRG size, namely the column number of the interleaving matrix is determined by the function f (P ') of the PRG size which is notified to the user terminal by the network side equipment through signaling, and P ' is the number of pre-coding resource blocks PRB included by PRG.

A special example is that the number of columns of the block interleaver is PRG size, that is, the number of columns is equal to the PRG size that the network side device notifies the user terminal through signaling.

When the configuration of PRG is type2, i.e. PRG size is the number of consecutive PRBs, the pair

And (3) applying the block interleaver in a group, and determining the column number of the block interleaver as a pre-configured value:

(2) This value may also be a fixed value specified in the protocol, such as 4 or P₀′。

In another specific implementation, the network notifies the number of columns of two different block interleavers through a high-level signaling

And

the method comprises the steps that UE corresponds to a PRG type1 and a PRG type2 respectively, namely when the configuration type of the PRG is type1, the column number of an interleaving matrix is a first value which is notified to a user terminal by network side equipment through signaling; and when the configuration type of the PRG is type2, the column number of the interleaving matrix is a second value which is notified to the user terminal by the network side equipment through signaling.

For example, when the UE uses PRG type1, block interleaver applies to the number of columns

Block interleaver applies to the number of columns when the UE uses PRG type2

Detailed description of the preferred embodiment

In this embodiment, at the time of initial access, since no UE-specific signaling is yet transmitted to the UE, special processing is required to determine which interleaving granularity and interleaving matrix to use specifically. Examples are as follows:

when in initial access, the network side equipment sends fallback DCI (fallback DCI) to convey control signaling, and a fixed PRG type is considered to be adopted to simplify the flow;

when the terminal receives a PDSCH (Physical Downlink Shared Channel) carrying RMSI (Remaining system information), message (message) 2 (RAR), message 4, OSI (Other system information), and the terminal receives using the DVRB, it is considered to perform reception in the following default manner:

(1): the method comprises the steps of defaulting to PRG type1, fixed PRG size, fixed interleaving granularity and fixed interleaving column number, namely when the configuration type of the PRG is type1, the size of the PRG is a preset first fixed value, the interleaving granularity is a preset second fixed value, and the column number of an interleaving matrix is a preset third fixed value;

(2): the default is PRG type2, fixed interleaving granularity and fixed number of interleaving columns. That is, when the configuration type of the PRG is type2, the granularity of interleaving is a preset fourth fixed value, and the number of columns of the interleaving matrix is a preset fifth fixed value.

Where RMSI is system information introduced in the 5G NR similar to SIB1 in LTE. OSI is the rest of the SIBx system information introduced in 5G NR similar to LTE except SIB 1.

For a PRACH (Physical Random Access Channel) Channel in the existing 4G LTE Physical layer design, the PRACH Channel is mainly used for a user terminal side to initiate an uplink Random Access request, so that a network side device side further determines a subsequent response according to the request.

The existing random access process mainly has 4 steps as follows:

step 1: preamble transmission (Message 1)

Step 2: random access response (Message 2)

And step 3: layer 2/layer 3 messages (Message 3)

And 4, step 4: contention resolution Message (Message 4)

Step 1, a sequence (sequence) generated by a Preamble (code) of a physical layer is mapped to a time-frequency resource of the physical layer and then is sent; step 2 is mainly that the Network side device sends RAR (Random Access Response) through the PDSCH channel, and identifies with RA-RNTI (Random Access Radio Network Temporary identity) to identify in which time-frequency slot the Access prefix is detected. If several UEs collide because they select the same sign in the same prefix time-frequency resource, these UEs will also receive RAR; step 3 is a first random access related message which is scheduled and allocated on a PUSCH (Physical Uplink Shared Channel), and this message carries a certain random access procedure message, such as an RRC connection request message, a location area update message, or a scheduling request message; step 4 is mainly intended for contention resolution messages, which are for either the C-RNTI or the temporary C-RNTI. In the latter case, the contention resolution message replies with the UE ID carried in the L2/L3 message. The contention resolution message supports HARQ. If a L2/L3 message is decoded successfully after contention conflict occurs, only the UE which detects its own UE ID (or C-RNTI) will send the HARQ feedback message, and other UEs realize that a conflict exists, will not send the HARQ feedback message, but end the access process as soon as possible and start a new random access.

Further, in the foregoing specific embodiment one to specific embodiment three, when the ue determines that the ue is PRG size P', that is, when the configuration type of the PRG is type1, the granularity of the interleaving is an integer multiple of the size of the PRG signaled by the network side device to the ue, and may be equal to or greater than the size of the PRG, and if the granularity is greater than the size of the PRG, the complexity of the interleaving can be reduced.

An embodiment of the present invention further provides a resource determining method, which is applied to a user terminal, and as shown in fig. 4, the method includes:

step 201: receiving resource mapping configuration information of a physical downlink control channel sent by network side equipment, wherein the resource mapping configuration information at least comprises parameters of a block interleaver adopted by resource mapping;

step 202: and determining the parameters of the block interleaver adopted by the resource mapping according to the resource mapping configuration information.

Further, after determining the parameter of the block interleaver used for resource mapping according to the resource mapping configuration information, the method further includes:

and receiving downlink data according to the determined parameters of the block interleaver.

Further, the parameters of the block interleaver include at least one of: granularity of interleaving, number of rows of an interleaving matrix, number of columns of an interleaving matrix.

Further, the method further comprises:

receiving the configuration type of the PRG sent by the network side device, and selecting a resource mapping configuration mode from multiple resource mapping configuration modes according to the configuration type of the PRG, where the multiple resource mapping configuration modes are multiple resource mapping configuration modes that are pre-configured or multiple resource mapping configuration modes that are sent by the network side device in advance, and each resource mapping configuration mode includes at least one of the following: the method comprises the steps of obtaining the granularity of the interweaving, obtaining the number of rows of the interweaving matrix, obtaining the number of columns of the interweaving matrix and obtaining the number of rows of the interweaving matrix.

Further, when the configuration type of the PRG is type1, the granularity of the interleaving is determined by the size of the PRG that the network side device notifies the user terminal through signaling;

Further, when the configuration type of the PRG is type1, the granularity of the interleaving is the size of the PRG configured to the user terminal by the network side device through signaling;

Further, when the configuration type of the PRG is type1, the number of columns of the interleaving matrix is determined by a function f (P ') of the size of the PRG, which is notified to the user terminal by the network side device through signaling, where P' is the number of precoding resource blocks PRB included in the PRG; or the network side equipment configures the user terminal through signaling; or equal to the PRG size notified to the user terminal by the network side equipment through signaling;

when the configuration type of the PRG is type2, the number of columns of the interleaving matrix is a preconfigured value.

Further, when the configuration type of the PRG is type1, the number of columns of the interleaving matrix is a first value that the network side device notifies the user terminal through a signaling;

and when the configuration type of the PRG is type2, the column number of the interleaving matrix is a second value which is notified to the user terminal by the network side equipment through signaling.

Further, the resource mapping configuration information indicates initial access to the ue, and when the ue receives a PDSCH carrying RMSI, message2, message 4 and/or OSI information and the configuration type of the PRG is type1, the size of the PRG is a preset first fixed value, the granularity of interleaving is a preset second fixed value, and the number of columns of the interleaving matrix is a preset third fixed value; or

When the configuration type of the PRG is type2, the granularity of interleaving is a preset fourth fixed value, and the number of columns of the interleaving matrix is a preset fifth fixed value.

Further, when the configuration type of the PRG is type1, the granularity of the interleaving is an integer multiple of the size of the PRG that the network side device notifies the user terminal through signaling.

Further, the preconfigured value is a maximum value among all candidate PRG sizes when the configuration type of the PRG is type 1; or

The preconfigured value is a preset sixth fixed value.

An embodiment of the present invention further provides a network side device, as shown in fig. 5, including:

a processing module 31, configured to determine resource mapping configuration information of a physical downlink control channel, where the resource mapping configuration information at least includes a parameter of a block interleaver used for resource mapping;

a sending module 32, configured to map the virtual resource block to the physical resource block according to the resource mapping configuration information, and send the resource mapping configuration information to the user terminal.

Further, the parameters of the block interleaver include at least one of:

granularity of interlacing;

the number of rows of the interleaved matrix;

the number of columns of the interleaving matrix.

Further, the sending module is further configured to send the configuration type of the PRG to the ue, so that the ue selects a resource mapping configuration manner from multiple resource mapping configuration manners according to the configuration type of the PRG, where the multiple resource mapping configuration manners are multiple resource mapping configuration manners that are pre-configured or multiple resource mapping configuration manners that are sent to the ue in advance, and each resource mapping configuration manner includes at least one of the following: the method comprises the steps of obtaining the granularity of the interweaving, obtaining the number of rows of the interweaving matrix, obtaining the number of columns of the interweaving matrix and obtaining the number of rows of the interweaving matrix.

Further, the resource mapping configuration information indicates initial access at the ue, where the ue receives a PDSCH carrying remaining system information RMSI, message2, message 4, and/or other system information OSI, and when the PRG is configured as type1, the size of the PRG is a preset first fixed value, the granularity of interleaving is a preset second fixed value, and the number of columns of the interleaving matrix is a preset third fixed value; or

The preconfigured value is a preset sixth fixed value.

An embodiment of the present invention further provides a user terminal, as shown in fig. 6, including:

a receiving module 41, configured to receive resource mapping configuration information of a physical downlink control channel sent by a network side device, where the resource mapping configuration information at least includes a parameter of a block interleaver used for resource mapping;

and the processing module 42 is configured to determine a parameter of a block interleaver used in resource mapping according to the resource mapping configuration information.

Further, still include:

and the data receiving module is used for receiving the downlink data according to the determined parameters of the block interleaver.

Further, the parameters of the block interleaver include at least one of: granularity of interlacing; the number of rows of the interleaved matrix; the number of columns of the interleaving matrix.

Further, the receiving module is further configured to receive the configuration type of the PRG sent by the network side device;

the processing module is specifically configured to select a resource mapping configuration manner from multiple resource mapping configuration manners according to the configuration type of the PRG, where the multiple resource mapping configuration manners are multiple resource mapping configuration manners that are pre-configured or multiple resource mapping configuration manners that are sent in advance by the network side device, and each resource mapping configuration manner includes at least one of the following: the method comprises the steps of obtaining the granularity of the interweaving, obtaining the number of rows of the interweaving matrix, obtaining the number of columns of the interweaving matrix and obtaining the number of rows of the interweaving matrix.

The preconfigured value is a preset sixth fixed value.

An embodiment of the present invention further provides a network side device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the resource mapping method as described above.

Referring to fig. 7, fig. 7 is a structural diagram of a network device applied in the embodiment of the present invention, which can implement details of a resource mapping method in the foregoing embodiments and achieve the same effects. As shown in fig. 7, the network side device 500 includes: a processor 501, a transceiver 502, a memory 503, a user interface 504, and a bus interface, wherein:

in this embodiment of the present invention, the network side device 500 further includes: a computer program stored on the memory 503 and executable on the processor 501, the computer program realizing the following steps when executed by the processor 501: determining resource mapping configuration information of a physical downlink control channel, wherein the resource mapping configuration information at least comprises parameters of a blocky interleaver adopted by resource mapping;

In fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 501 and various circuits of memory represented by memory 503 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 502 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 504 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 501 is responsible for managing the bus architecture and general processing, and the memory 503 may store data used by the processor 501 in performing operations.

Optionally, the parameters of the block interleaver include granularity of interleaving, and/or number of rows of an interleaving matrix, and/or number of columns of the interleaving matrix.

Optionally, the resource mapping configuration information is determined by a configuration type of a precoding resource block PRG, where the configuration type of the PRG includes type1 and type2, where type1 refers to a set configured by the network side device or predefined to be a set of PRG sizes, and the PRG size used by the user terminal is dynamically indicated through L1 signaling; type2 means that the PRG size is equal to the number of resources that are continuously scheduled.

Optionally, the computer program may further implement the following steps when executed by the processor 501: sending the configuration type of the PRG to the user terminal so that the user terminal can select a resource mapping configuration mode from a plurality of resource mapping configuration modes according to the configuration type of the PRG, wherein the plurality of resource mapping configuration modes are a plurality of pre-configured resource mapping configuration modes or a plurality of resource mapping configuration modes which are sent to the user terminal in advance, and each resource mapping configuration mode comprises at least one of the following: the method comprises the steps of obtaining the granularity of the interweaving, obtaining the number of rows of the interweaving matrix, obtaining the number of columns of the interweaving matrix and obtaining the number of rows of the interweaving matrix.

Optionally, when the configuration type of the PRG is type1, the granularity of the interleaving is determined by the size of the PRG that the network side device notifies the user terminal through signaling;

Optionally, when the configuration type of the PRG is type1, the granularity of the interleaving is the size of the PRG configured to the user terminal by the network side device through signaling;

Optionally, when the configuration type of the PRG is type1, the number of columns of the interleaving matrix is determined by a function f (P ') of the size of the PRG, which is notified to the user terminal by the network side device through signaling, where P' is the number of precoding resource blocks PRB included in the PRG; or the network side equipment configures the user terminal through signaling; or equal to the PRG size notified to the user terminal by the network side equipment through signaling;

Optionally, when the configuration type of the PRG is type1, the number of columns of the interleaving matrix is a first value that the network side device notifies the user terminal through a signaling;

Optionally, the resource mapping configuration information indicates initial access to the ue, where the ue receives a PDSCH carrying remaining system information RMSI, message2, message 4, and/or other system information OSI, and when the PRG is configured in type1, the size of the PRG is a preset first fixed value, the granularity of interleaving is a preset second fixed value, and the number of columns of the interleaving matrix is a preset third fixed value; or

Optionally, when the configuration type of the PRG is type1, the granularity of interleaving is an integer multiple of the size of the PRG that the network side device notifies the user terminal through signaling.

Optionally, the preconfigured value is a maximum value of sizes of all candidate PRGs when the configuration type of the PRG is type 1; or

The preconfigured value is a preset sixth fixed value.

An embodiment of the present invention further provides a user terminal, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the resource determination method as described above.

Referring to fig. 8, fig. 8 is a structural diagram of a user terminal applied in the embodiment of the present invention, which can implement details of the resource determining method in the above embodiment and achieve the same effect. As shown in fig. 8, the user terminal 600 includes: processor 604, antenna 601, radio frequency device 602, baseband device 603, memory 605, network interface 606, and bus interface, wherein:

in this embodiment of the present invention, the user terminal 600 further includes: a computer program stored on the memory 605 and executable on the processor 604, the computer program when executed by the processor 604 performing the steps of: receiving resource mapping configuration information of a physical downlink control channel sent by network side equipment, wherein the resource mapping configuration information at least comprises parameters of a block interleaver adopted by resource mapping;

In FIG. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented in particular by processor 604, and various circuits, represented by memory 605, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The network interface 606 may also be an interface capable of interfacing externally to a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 604 is responsible for managing the bus architecture and general processing, and the memory 605 may store data used by the processor 604 in performing operations.

Optionally, the computer program when executed by the processor 604 may further implement the steps of: and receiving downlink data according to the determined parameters of the block interleaver.

Optionally, the computer program when executed by the processor 604 may further implement the steps of: receiving the configuration type of the PRG sent by the network side device, and selecting a resource mapping configuration mode from multiple resource mapping configuration modes according to the configuration type of the PRG, where the multiple resource mapping configuration modes are multiple resource mapping configuration modes that are pre-configured or multiple resource mapping configuration modes that are sent by the network side device in advance, and each resource mapping configuration mode includes at least one of the following: the method comprises the steps of obtaining the granularity of the interweaving, obtaining the number of rows of the interweaving matrix, obtaining the number of columns of the interweaving matrix and obtaining the number of rows of the interweaving matrix.

Optionally, the resource mapping configuration information indicates initial access to the ue, and when the ue receives a PDSCH carrying RMSI, message2, message 4 and/or OSI information and the configuration type of the PRG is type1, the size of the PRG is a preset first fixed value, the granularity of interleaving is a preset second fixed value, and the number of columns of the interleaving matrix is a preset third fixed value; or

The preconfigured value is a preset sixth fixed value.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the resource mapping method or implements the steps of the resource determining method.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A resource mapping method is applied to network side equipment, and is characterized by comprising the following steps:

mapping the virtual resource block to a physical resource block according to the resource mapping configuration information, and sending the resource mapping configuration information to a user terminal;

the parameters of the block interleaver include at least one of:

granularity of interlacing;

the number of rows of the interleaved matrix;

the number of columns of the interleaving matrix;

the resource mapping configuration information is determined by a configuration type of a precoding resource block PRG, the configuration type of the PRG includes type1 and type2, wherein type1 refers to a set configured by the network side device or predefined to be a group of PRG size, and the PRG size used by the user terminal is dynamically indicated through L1 signaling; type2 means that the PRG size is equal to the number of resources that are continuously scheduled.

2. The method of resource mapping according to claim 1, the method further comprising:

3. The resource mapping method of claim 2,

when the configuration type of the PRG is type1, the granularity of the interleaving is determined by the size of the PRG that the network side device notifies the user terminal through signaling;

4. The resource mapping method of claim 2,

5. The resource mapping method of claim 2,

when the configuration type of the PRG is type1, determining the number of columns of the interleaving matrix by a function f (P ') of the size of the PRG, which is notified to the user terminal by the network side device through signaling, where P' is the number of precoding resource blocks PRB included in the PRG; or the network side equipment configures the user terminal through signaling; or equal to the PRG size notified to the user terminal by the network side equipment through signaling;

6. The resource mapping method of claim 2,

when the configuration type of the PRG is type1, the number of columns of the interleaving matrix is a first value that the network side device notifies the user terminal through a signaling;

7. The resource mapping method of claim 1,

the resource mapping configuration information indicates initial access at the user terminal, the user terminal receives a Physical Downlink Shared Channel (PDSCH) carrying residual system information (RMSI), messages (2, 4) and/or Other System Information (OSI), and when the configuration type of the PRG is type1, the size of the PRG is a preset first fixed value, the granularity of interleaving is a preset second fixed value, and the number of columns of the interleaving matrix is a preset third fixed value; or

8. The method according to any of claims 3 to 7, wherein when the configuration type of the PRG is type1, the granularity of the interleaving is an integer multiple of the size of the PRG signaled to the user terminal by the network side device.

9. The resource mapping method according to any one of claims 3-5,

the pre-configured value is the maximum value of all candidate PRG sizes when the configuration type of the PRG is type 1; or

The preconfigured value is a preset sixth fixed value.

10. A resource determination method is applied to a user terminal, and is characterized by comprising the following steps:

determining parameters of a block interleaver adopted by resource mapping according to the resource mapping configuration information;

the parameters of the block interleaver include at least one of:

granularity of interlacing;

the number of rows of the interleaved matrix;

the number of columns of the interleaving matrix;

11. The method according to claim 10, wherein after determining the parameters of the block interleaver used for resource mapping according to the resource mapping configuration information, the method further comprises:

12. The method of claim 10, further comprising:

13. The resource determination method of claim 12,

14. The resource determination method of claim 12,

15. The resource determination method of claim 12,

16. The resource determination method of claim 12,

17. The resource determination method of claim 10,

the resource mapping configuration information indicates initial access at the user terminal, and when the user terminal receives a Physical Downlink Shared Channel (PDSCH) carrying RMSI, message2, message 4 and/or OSI information and the configuration type of the PRG is type1, the size of the PRG is a preset first fixed value, the granularity of interleaving is a preset second fixed value, and the number of columns of an interleaving matrix is a preset third fixed value; or

18. The method according to any of claims 13-17, wherein when the PRG configuration type is type1, the granularity of the interleaving is an integer multiple of the PRG size signaled to the user terminal by the network side device.

19. The resource determination method according to any one of claims 13-15,

The preconfigured value is a preset sixth fixed value.

20. A network-side device, comprising:

a sending module, configured to map a virtual resource block to a physical resource block according to the resource mapping configuration information, and send the resource mapping configuration information to a user terminal;

the parameters of the block interleaver include at least one of:

granularity of interlacing;

the number of rows of the interleaved matrix;

the number of columns of the interleaving matrix;

21. The network-side device of claim 20,

the sending module is further configured to send the configuration type of the PRG to the ue, so that the ue selects a resource mapping configuration manner from multiple resource mapping configuration manners according to the configuration type of the PRG, where the multiple resource mapping configuration manners are multiple resource mapping configuration manners that are preconfigured or multiple resource mapping configuration manners that are sent to the ue in advance, and each resource mapping configuration manner includes at least one of the following: the method comprises the steps of obtaining the granularity of the interweaving, obtaining the number of rows of the interweaving matrix, obtaining the number of columns of the interweaving matrix and obtaining the number of rows of the interweaving matrix.

22. The network-side device of claim 21,

23. The network-side device of claim 21,

24. The network-side device of claim 21,

25. The network-side device of claim 21,

26. The network-side device of claim 20,

27. The network-side device of any one of claims 22 to 26, wherein when the configuration type of the PRG is type1, the granularity of the interleaving is an integer multiple of the size of the PRG signaled to the user terminal by the network-side device.

28. The network-side device of any one of claims 22-24,

The preconfigured value is a preset sixth fixed value.

29. A user terminal, comprising:

the processing module is used for determining the parameters of the block interleaver adopted by the resource mapping according to the resource mapping configuration information;

the parameters of the block interleaver include at least one of:

granularity of interlacing;

the number of rows of the interleaved matrix;

the number of columns of the interleaving matrix;

30. The user terminal of claim 29, further comprising:

31. The user terminal of claim 29,

the receiving module is further configured to receive the configuration type of the PRG sent by the network side device;

32. The user terminal of claim 31,

33. The user terminal of claim 31,

34. The user terminal of claim 31,

35. The user terminal of claim 31,

36. The ue of claim 29, wherein the resource mapping configuration information indicates initial access at the ue, and when the ue receives a PDSCH carrying RMSI, message2, message 4 and/or OSI information and the PRG is of type1, the PRG size is a first preset fixed value, the granularity of interleaving is a second preset fixed value, and the number of columns of the interleaving matrix is a third preset fixed value; or

37. The ue according to any one of claims 32 to 36, wherein when the PRG is of type1, the granularity of the interleaving is an integer multiple of the size of the PRG signaled to the ue by the network side device.

38. The user terminal according to any of claims 32-34,

The preconfigured value is a preset sixth fixed value.

39. A network-side device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the resource mapping method according to any of claims 1 to 9.

40. A user terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the resource determination method according to any one of claims 10 to 19.

41. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the resource mapping method according to any one of claims 1 to 9 or the steps of the resource determination method according to any one of claims 10 to 19.