CN117676871A

CN117676871A - Information transmission method, device, related equipment and storage medium

Info

Publication number: CN117676871A
Application number: CN202210957785.6A
Authority: CN
Inventors: 胡丽洁; 张嘉真
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2024-03-08

Abstract

The application discloses an information transmission method, an information transmission device, a terminal, network equipment and a storage medium. The method comprises the following steps: the terminal receives first information indicating a first set of Resource Blocks (RBs), the first set of RBs being one of N RB sets predefined within a bandwidth part (BWP) or configured by a network, N being an integer greater than or equal to 1, each RB set comprising a plurality of consecutive RBs, the size of each RB set being less than or equal to the bandwidth of the BWP, the first RB set being related to frequency domain resource allocation of a physical shared channel.

Description

Information transmission method, device, related equipment and storage medium

Technical Field

The present disclosure relates to the field of wireless communications, and in particular, to an information transmission method, apparatus, related device, and storage medium.

Background

The low-capability (RedCap, reduced Capability) terminal is oriented to application scenes such as industrial wireless interconnection terminals, video monitoring of smart cities, intelligent wearing equipment and the like. For a RedCap terminal, the reduction of the cost of the terminal is achieved by reducing the maximum bandwidth supported by the terminal from 100MHz to 20MHz in the frequency range 1 (FR 1), reducing the frequency range 2 (FR 2) from 200MHz to 100MHz, reducing the number of antennas that the terminal must support from 2Rx to 1Rx, or reducing the number of antennas to 2Rx or 1Rx for a partial Time Division Duplex (TDD) band from 4Rx, reducing the form of Downlink (DL) Quadrature Amplitude Modulation (QAM) that the terminal forcibly supports from 256QAM to 64QAM, and introducing half duplex frequency division duplex (HD-FDD) or the like as the 256QAM is optional.

In the related art, it is desirable to further reduce the cost of the terminal by reducing the channel bandwidth of the terminal. However, in the case where the control channel bandwidth is greater than the traffic channel bandwidth, there is currently no effective solution how to improve the efficiency of resource scheduling.

Disclosure of Invention

In order to solve the related technical problems, embodiments of the present application provide an information transmission method, an information transmission device, a related device, and a storage medium.

The technical scheme of the embodiment of the application is realized as follows:

the embodiment of the application provides an information transmission method, which is applied to a terminal and comprises the following steps:

receiving first information, the first information indicating a first set of Resource Blocks (RBs), the first set of RBs being one of N RB sets predefined within a bandwidth part (BWP) or configured by a network, N being an integer greater than or equal to 1, each RB set comprising a plurality of consecutive RBs, the size of each RB set being less than or equal to the bandwidth of the BWP, the first RB set being related to frequency domain resource allocation of a physical shared channel.

In the above scheme, the method further comprises:

second information is received, the second information indicating N RB sets within the BWP.

In the above aspect, the second information includes one of:

Starting position information of each RB set;

resource Indicator Value (RIV) information for each RB set.

In the above scheme, in the case that the second information includes resource start position information of each RB set, the second information further includes RB set size information.

In the above scheme, the receiving the first information includes one of the following:

receiving Downlink Control Information (DCI), the DCI including the first information;

receiving a media access control element (MAC CE), the MAC CE containing the first information;

system information is received, the system information including the first information.

In the above solution, when the DCI includes the first information, a frequency domain resource allocation field in the DCI carries the first information.

In the above scheme, the method further comprises:

and taking the first RB set as a frequency domain resource range for distributing the physical shared channel.

In the above scheme, the frequency domain resource of the physical shared channel is determined according to the RB allocation information in the first RB set and DCI.

In the above scheme, in case of the resource allocation type 0, the determination of the Resource Block Group (RBG) is associated with at least one of the following information:

A starting position of the first RB set;

the size of the first RB set.

In the above scheme, the size of the RBG is related to the size of the first RB set.

In the above scheme, the size of the first RBG in the first RB set is related to the size of the RBG and the starting position of the first RB set;

and/or the number of the groups of groups,

and when the number of RBs contained in the last RBG in the first RB set is smaller than the size of the RBG, the size of the last RBG is related to the starting position of the first RB set, and the size of the first RB set and the size of the RBG.

In the above scheme, in the case of resource allocation type 1, when determining the resources of the physical shared channel, the size of the first RB set is used as a parameter for RIV calculation.

In the above scheme, the RB start position 0 in the RIV calculation corresponds to the start position of the first RB set.

The embodiment of the application also provides an information transmission method, which is applied to the network equipment and comprises the following steps:

and transmitting first information to the terminal, wherein the first information indicates a first RB set, the first RB set is one RB set in N RB sets predefined in BWP or configured by a network, N is an integer greater than or equal to 1, each RB set comprises a plurality of continuous RBs, the size of each RB set is smaller than or equal to the bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

In the above scheme, the method further comprises:

and sending second information to the terminal, wherein the second information indicates N RB sets in the BWP.

In the above aspect, the second information includes one of:

starting position information of each RB set;

RIV information for each RB set.

In the above scheme, the sending the first information to the terminal includes one of the following:

transmitting DCI to the terminal, wherein the DCI comprises the first information;

transmitting a MAC CE to the terminal, the MAC CE including the first information;

and sending system information, wherein the system information comprises the first information.

In the above scheme, in case of the resource allocation type 0, the RBG determination is associated with at least one of the following information:

a starting position of the first RB set;

the size of the first RB set.

and/or the number of the groups of groups,

The embodiment of the application also provides an information transmission device, which comprises:

a receiving unit, configured to receive first information, where the first information indicates a first RB set, where the first RB set is one RB set of N RB sets predefined in a bandwidth part BWP or configured by a network, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, and a size of each RB set is less than or equal to a bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

a sending unit, configured to send first information to a terminal, where the first information indicates a first RB set, where the first RB set is one RB set of N RB sets predefined in BWP or configured by a network, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, and a size of each RB set is less than or equal to a bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

The embodiment of the application also provides a terminal, which comprises: a first processor and a first communication interface; wherein,

the first communication interface is configured to receive first information, where the first information indicates a first RB set, where the first RB set is one RB set of N RB sets predefined in BWP or configured by a network, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, and a size of each RB set is less than or equal to a bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

The embodiment of the application also provides a network device, which comprises: a second processor and a second communication interface; wherein,

The second communication interface is configured to send first information to a terminal, where the first information indicates a first RB set, where the first RB set is one RB set of N RB sets predefined in BWP or configured by a network, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, and a size of each RB set is less than or equal to a bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

The embodiment of the application also provides a terminal, which comprises: a first processor and a first memory for storing a computer program capable of running on the processor,

the first processor is configured to execute the steps of any method on the terminal side when running the computer program.

The embodiment of the application also provides a network device, which comprises: a second processor and a second memory for storing a computer program capable of running on the processor,

and the second processor is used for executing any step of the method at the network equipment side when the computer program is run.

The embodiment of the application also provides a storage medium, on which a computer program is stored, where the computer program when executed by a processor implements the steps of any method on the terminal side or implements the steps of any method on the network device side.

According to the information transmission method, the information transmission device, the related equipment and the storage medium, the network equipment sends first information to the terminal, the first information indicates a first RB set, the first RB set is one RB set in N RB sets predefined in BWP or configured by a network, N is an integer greater than or equal to 1, each RB set comprises a plurality of continuous RBs, the size of each RB set is smaller than or equal to the bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel; and the terminal receives the first information. According to the scheme provided by the embodiment of the application, a plurality of RB sets are configured or predefined in the BWP, each RB set comprises a plurality of continuous RBs, one of the plurality of RB sets is indicated to serve as a reference RB for sharing channel resource allocation through the indication information, so that the frequency domain resource range of a physical sharing channel (namely a service channel) is known in advance, the data of only the physical sharing channel region is received, the data of the whole bandwidth of the BWP is not required to be cached, and the complexity of the terminal is reduced; meanwhile, since the indicated RB set is small in bandwidth for the traffic channel, the indication bits are reduced, and the indication overhead of the control channel is reduced.

Drawings

FIG. 1 is a diagram of cross-slot scheduling in the related art;

fig. 2 is a schematic flow chart of a method for information transmission according to an embodiment of the present application;

fig. 3 is a schematic diagram of an exemplary BWP internal candidate RB set in the present application;

fig. 4 is a flowchart of another method for information transmission according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an information transmission device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another information transmission device according to an embodiment of the present application;

fig. 7 is a schematic diagram of a terminal structure according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an information transmission system according to an embodiment of the present application.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings and examples.

In the related art, the cost of the terminal can be further reduced by reducing the channel bandwidth of the terminal and reducing the peak rate of the terminal. Wherein the cost of the terminal Radio Frequency (RF) and baseband (BB) can be reduced by reducing the channel bandwidth of the terminal, e.g. to 5 MHz. By reducing the peak rate of the terminal, from the perspective of BB processing, the data throughput, buffering requirements, etc. can be reduced, thereby realizing a reduction in the cost of the terminal.

In the related art, for the manner of reducing the bandwidth of the terminal to 5MHz, there are three specific implementation manners:

mode 1: the RF bandwidth and BB bandwidth of the uplink and the downlink are reduced to 5MHz;

mode 2: the uplink and downlink RF bandwidths are 20MHz, namely the RF bandwidths are not reduced, the BB bandwidths of a Physical Downlink Shared Channel (PDSCH) and/or a Physical Uplink Shared Channel (PUSCH) are reduced to 5MHz, and the BB bandwidths of 20MHz are still supported for other physical layer channels and signals;

mode 3: the RF bandwidth of the uplink and downlink is 20MHz, and the BB bandwidth of all signals and channels is 5MHz.

In embodiment 2, since the RF bandwidth is not reduced, the reduction of the cost of the terminal is mainly represented by the reduction of the cost of some receiving and transmitting processing modules, decoding modules, buffering modules, and the like of the BB. Here, since the RF and BB bandwidths of the control channel are still 20MHz, the BWP bandwidth configuration of the network side to the terminal may be greater than 5MHz. Considering that for downlink transmission, if the control channel and the PDSCH are transmitted in the same time slot, since the terminal cannot know whether there is PDSCH scheduling in the current time slot and the frequency domain position of PDSCH scheduling is in the current active BWP before decoding processing of the Physical Downlink Control Channel (PDCCH), it is necessary to buffer the data of all BWP regions before reading the scheduling information of the PDCCH to ensure that the decoding of the PDSCH can be performed. But such a process is disadvantageous in reducing the cost of the terminal. Mode 2 is therefore presented for use in connection with cross-slot scheduling.

Cross-slot scheduling was introduced in terminal power saving studies. The basic idea of cross-slot scheduling is: by configuring 1 or 2 minimum K0 (i.e. PDCCH to PDSCH slot offset) values and/or minimum K2 (i.e. PDCCH to PUSCH slot offset) values on a part of BWP through Radio Resource Control (RRC), 1 bit of the downlink control information DCI format (format) 0_1/1_1 dynamically indicates which minimum K0 and/or minimum K2 value is used, for example, when the K0 value is minimum to 1, the PDCCH to PDSCH slot offset value cannot be less than 1 in the schedule after the indication is effective, that is, cannot occur in the same slot, as shown in fig. 1, so that when the slot n+1 is the slot, the terminal can only receive the data of the determined PDSCH region after receiving the PDCCH of the slot n+1, without buffering the data in all BWP, thereby playing a role of reducing the buffering requirement and further playing a part of cost reduction.

Here, when the network schedules the terminal, the format of PDSCH or PUSCH transmission is indicated through the PDCCH, and the format includes time-frequency domain resources. Taking downlink scheduling as an example, in the frequency domain resource allocation domain in DCI format 1_1, if resource allocation scheme 1 (which may also be understood as resource allocation type 1) is configured, the number of bits used for the resource allocation instruction is calculated by the following formula:

Wherein,RB size indicating currently activated downlink BWP, +.>Representing an upward rounding.

In the case of calculating different active BWP bandwidths using equation (1), the required resource allocation domain size may then yield the results shown in table 1.

	20MHz	5MHz
			N _RB	51	11
Number of resource indication bits	11	7

TABLE 1

When the above-described mode 2 is used in combination with the cross-slot scheduling method to reduce the cost of the terminal, the BWP used is still the size of the active BWP, and since the bandwidth of the current control channel may reach 20MHz, the size of the active BWP is determined according to the bandwidth of the control channel, and although the bandwidth of the traffic channel can be only 5MHz at the maximum, the resource indication bits still need to be reserved according to 11 bits because: it is possible to schedule to any location of 20MHz, which results in a large overhead for the control channel.

Therefore, a scheme that a terminal knows bandwidth in advance is needed, so that the efficiency of resource scheduling is improved.

Based on this, in various embodiments of the present application, a plurality of RB sets are configured or predefined inside the BWP, the RB sets include a plurality of consecutive RBs, and one of the plurality of RB sets is indicated by the indication information as a reference RB for shared channel resource allocation, so that the frequency domain resource range of the physical shared channel (i.e., the traffic channel) is known in advance, thereby implementing that only data of the physical shared channel region is received, without buffering data of the entire bandwidth of the BWP, and reducing the complexity of the terminal; meanwhile, since the indicated RB set is small in bandwidth for the traffic channel, the indication bits are reduced, and the indication overhead of the control channel is reduced.

The embodiment of the application provides an information transmission method, which is applied to a terminal, as shown in fig. 2, and includes:

step 201: receiving first information, wherein the first information indicates a first RB set, the first RB set is one RB set of N RB sets predefined in a BWP or configured by a network, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, the size of each RB set is less than or equal to the bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

In practical application, the terminal may be referred to as a User Equipment (UE), or may be referred to as a user. In the embodiment of the present application, the terminal may include a RedCap terminal.

The RB set may be understood as a continuous piece of RB resources, that is, RBs in the RB set are continuous. The RB set may also be referred to as an RB group, and the name of the RB set is not limited in the embodiments of the present application, so long as the function thereof is implemented.

In practical application, the BWP may be understood as a BWP currently activated by the terminal. When implementing the solution of the embodiment of the present application, multiple RB sets are typically predefined or configured in BWP, and therefore, the RB size of the RB set is typically smaller than the size of BWP bandwidth.

Wherein the number of RB sets and the size of RB sets in BWP (English can be expressed as size) can be determined according to the requirement, for example, according to the physical requirementThe maximum bandwidth supported by the shared channel (e.g., the number of RBs corresponding to 5MHz (i.e., the number of RBs N of PDSCH) _PDSCH Or RB number N of PUSCH _PUSCH ) The RB size of the RB set is determined, and the number of RB sets is determined according to the RB size of the RB set and the bandwidth of the BWP. The RB set size may be understood as the RB size of the RB set or the number of RBs of the RB set.

Here, it should be noted that, in the embodiment of the present application, a specific implementation process of determining the number of RB sets and the size of RB sets in BWP is not limited.

The first RB set is related to frequency domain resource allocation of a physical shared channel, which may be understood as that the first RB set is used for frequency domain resource allocation of the physical shared channel.

In step 201, the terminal receives the first information sent by the network side.

Specifically, the terminal may receive the first information through DCI, that is, the terminal receives DCI, the DCI including the first information; the terminal may also receive the first information through a MAC CE, that is, the terminal receives a MAC CE containing the first information; the terminal may also receive the first information through system information, that is, the terminal receives system information including the first information.

Wherein the first information may be indicated by bits, m=log2 (N) bits may be required for N RB sets to indicate a frequency domain range of a subsequent traffic channel.

When the terminal receives the first information through DCI, a frequency domain resource allocation (english may be expressed as Frequency domain resource assignment) field (also may be understood as a domain (english may be expressed as field)) in the DCI may carry the first information.

For example, as shown in table 1, for BWP of 20MHz bandwidth, the frequency domain resource allocation field needs 11 bits, and when the bandwidth is 5MHz, the number of RBs is indicated by 7 bits, which may save 4 bits, so for the above M bits, the upper bits of the frequency domain resource allocation field bits may be multiplexed, i.e., the corresponding RB set is indicated with the upper 4 bits, i.e., the first RB set is indicated with the upper 4 bits, and one RB set of up to 16 RB sets may be indicated with the upper 4 bits.

Wherein bits of the frequency domain resource allocation field, e.g., upper bits, are multiplexed to indicate the first RB set, so signaling overhead may not be increased.

Of course, in practical application, a new indication field may be defined to indicate, for example, when the bandwidth is 5MHz, only 7 bits are needed to indicate the number of RBs, in this case, 4 bits are saved compared with the number of RBs corresponding to the 11-bit indication of 20MHz of BWP, and in this case, a new indication field may be defined to indicate the first RB set, for example, a 2-bit indication field is introduced to indicate the first RB set, so that signaling overhead may be reduced.

When the N RB sets are configured by the network side, the terminal needs to know the N RB sets configured by the network side so as to determine a first RB set indicated by the first information from the N RB sets.

Based on this, in an embodiment, the method may further include:

And the terminal receives the second information sent by the network side. In practical application, the network side can send the second information to the terminal through RRC signaling.

In practical application, the network side may configure N RB sets according to the bandwidth of BWP and the maximum bandwidth of the traffic channel.

Illustratively, for each carrier, the network side configures up to 4 BWPs for the terminal, and in order to restrict the transmission bandwidth of the traffic channel to match the terminal capability, the network side may further configure at least one RB set inside each BWP. As shown in fig. 3, assuming that the current BWP bandwidth is 20MHz and the transmission bandwidth of the traffic channel is 5MHz, 4 consecutive RB sets (RB sets 1, 2, 3, 4, respectively) are configured inside the BWP, and the configured RB sets serve as candidate resources for PDSCH and/or PUSCH transmission. Each RB set has a respective starting location (S1, S2, S3, S4, respectively) and bandwidth (which may be the size of the RB set, i.e. the number of RBs L). When the RB set currently in effect (i.e., the first RB set indicated by the first information) is RB set 1, the terminal only needs to detect data in L RB ranges starting from S1 (i.e., in L1 ranges), and does not need to buffer data in other RB areas.

As can be seen from the above description, the N RB sets may or may not be consecutive. The present embodiments do not limit the relationship between the starting points of the defined plurality of RB sets.

In practical application, the network side may allocate RB sets to the terminals in the following manner:

mode one: and configuring the starting positions of a plurality of RB sets, namely, the second information comprises the starting position information of each RB set.

Illustratively, the starting positions of the multiple RB sets, i.e. a list of one starting position (english may be expressed as list) is configured in a PDSCH and/or PUSCH common configuration Information Element (IE) (which may also be referred to as an information field). Wherein the list actually corresponds to a set, and the elements of the set are different frequency domain starting positions (in RB). Here, in practical application, 275 RBs can be configured at maximum due to the size of BWP, or 106 RBs can be configured at maximum for a RedCap terminal with a maximum carrier bandwidth of 20MHz subcarrier spacing of 15 kHz. The value of the initial position is 0 to 274 or 0 to 105.

The size of the RB set (also understood as the number of RBs or bandwidth of the RB set) may be predefined or configured by the network side.

Wherein, when the size of the RB set is configured by the network side, the second information may further include a size message of the RB set.

For example, in the PDSCH and/or PUSCH common configuration IE, the size of the RB set may be additionally configured, and the frequency resource range determined by the configured starting position and size may be used as the range of PDSCH or PUSCH frequency domain resource allocation. That is, given a starting point and a maximum allocable frequency domain resource range, the network side performs resource allocation indication within the frequency domain range through frequency domain resource indication (i.e., indication of a frequency domain resource allocation field) in a control channel.

Mode two: a plurality of RB sets, i.e., a plurality of RB set information is directly configured, in which case the second information includes RIV information of each RB set.

Illustratively, the plurality of RB sets may be configured in a configuration IE of BWP in a RIV value, or may be configured in a BWP-downlink common (BWP-downlink common) IE or BWP-downlink dedicated (BWP-downlink dedicated) IE in a RIV value.

Wherein the RIV value can characterize the starting position and length of the resource allocation.

In practical application, multiple RB sets may be configured for the terminal in the first or second mode as needed.

After receiving the first information, the terminal can determine the transmission range of the next traffic channel. In practical application, an effective time T may be defined for this indication information (i.e. the first information) in the control channel (which may be determined according to need, and this is not limited in the embodiment of the present application), for example, the start position indicated after the time T when the start of the control channel is received is effective, and then the start position indicated by the indication information is used as the starting point of the available frequency domain for PDSCH/PUSCH transmission until the indication corresponding to the new indication information is received is effective.

Based on this, in an embodiment, as shown in fig. 2, the method may further include:

step 202: and taking the first RB set as a frequency domain resource range for distributing the physical shared channel.

Specifically, the terminal determines the frequency domain resource of the physical shared channel according to the first RB set and the RB allocation information in the DCI.

In the related art, when no BWP indication field is configured in the scheduling DCI or when the terminal does not support DCI-based active BWP handover, RB indexes of downlink resource allocation types 0 and 1 are determined within the active BWP of the terminal. If dynamic BWP handover is supported, RB indexes of downlink resource allocation types 0 and 1 are determined within the BWP indicated by the BWP indication field.

In the embodiment of the present application, the RB indexes of the downlink resource allocation types 0 and 1 are no longer bandwidths of the currently activated BWP, but are determined in a frequency domain range determined by the first RB set of the currently effective physical shared channel (i.e., PDSCH and/or PUSCH) (a frequency domain range determined by starting from the starting RB of the first RB set and determining the number of RBs of the RB set as a size).

As can be seen from the above description, in the related art, DCI for scheduling physical sharing is transmitted in an active BWP, and frequency domain resource indication is performed according to the frequency domain range of the active BWP as a candidate transmission position of the physical sharing channel. In the embodiment of the present application, the DCI of physical sharing is scheduled to be transmitted in the activated BWP, and the frequency domain resource indication is performed according to the frequency domain range of the first RB set as the candidate transmission position of the physical sharing channel, so that the physical sharing channel cannot be transmitted outside the frequency domain range of the first RB set that is currently in effect, and therefore, the terminal does not need to buffer the physical sharing channel in the whole activated BWP range, thereby reducing the implementation complexity of the terminal and further reducing the cost.

How to determine the frequency domain resources of the physical shared channel is described below for different resource allocation types.

The resource allocation type 0 (which may also be referred to as resource allocation pattern 0) defined for the new air interface (NR) is a discontinuous resource allocation pattern, and it is necessary to indicate RBGs allocated for use by the terminal in a bit map manner. Wherein the RBG is a set of consecutive RBs, and the size of the RBG is determined by higher layer parameters and BWP in the related art, as shown in table 2.

TABLE 2

Assuming that the RBG size is P, in the related art, if the bandwidth of the downlink BWP i isThe number of RBGs can be expressed by the following formula:

wherein,representing BWP _i Mod represents the modulo operation.

Here, the first RBG has a size ofIf it isThe last RBG has a size of +.>The other RBG is P in size. The number of bits required for the bit map indication is equal to N _RBG Every 1 bit corresponds to 1 RBG, the RBG is numbered from the lowest frequency of BWP to the index number increasing, the most significant bit represents RBG ₀ The least significant bits represent RBG _NRBG-1 I.e. RBG _last And so on. If a certain RBG is allocated to a certain UE, the corresponding bit in the bit map (bitmap) is set to be 1; otherwise set to 0.

As can be seen from the above description, in the related art, when resource allocation is determined using resource allocation type 0, RBG size P for resource allocation needs to be determined according to the size of BWP.

In this embodiment, when determining resource allocation using the resource allocation type 0, the RBG size P for performing resource allocation needs to be determined according to the size of the first RB set (i.e., the size of the activated RB set in the multiple RB sets in BWP), instead of determining P according to the BWP size originally. Specifically, the size of the RBG is determined by the higher layer parameters and the size of the first RB set (assumed to be L).

Illustratively, assuming that the bandwidth of BWP is 20MHz, 4 RB sets are configured, the sizes of RBGs are as shown in table 3.

TABLE 3 Table 3

When the RB size range corresponding to the currently effective RB set is 1-36, the RBG size may be 2 (corresponding to configuration 1) or 4 (corresponding to configuration 2); when the RB size range corresponding to the currently effective RB set is 37-72, the RBG size may be 4 (corresponding to configuration 1) or 8 (corresponding to configuration 2); when the range of RBs corresponding to the current effective RB set is 73-144, the RBG size can be 8 (corresponding to configuration 1) or 16 (corresponding to configuration 2); when the range of RBs corresponding to the currently active set of RBs is 145-275, the RBG size may be 16 (corresponding to configuration 1 and configuration 2). In practical application, configuration 1 or configuration 2 can be selected according to requirements. When the configured 4 RB sets are different in size, the effective RB sets are different, and the RBGs corresponding to the different RB sets are different in urine and feces.

Accordingly, in the scheme provided by the embodiment of the present application, when calculating the number of RBGs and the size of each RBG, it is required to determine the starting RB value S of the currently effective RB set (i.e., the first RB set) and the size L of the first RB set; specifically, in the current downlink BWP, if the bandwidth of the RB set i currently in effect is L _i Number of RBs, initial RB value of S _i Then the number of RBGs is:

N _RBG ＝|(L _i +(S _i modP))/P| (3)

wherein the first RBG has a size ofIf (S) _i +L _i ) ModP > 0, the last RBG is +.>The other RBG is P in size. The number of bits required for the bit map indication is equal to N _RBG Every 1 bit corresponds to 1 RBG, the RBG is numbered from the lowest frequency of BWP to the index number increasing, the most significant bit represents RBG ₀ The least significant bits represent RBG _NRBG-1 I.e. RBG _last And so on. If a certain RBG is allocated to a certain terminal, the corresponding bit in the bitmap is set to be 1; otherwise set to 0.

As can be seen from the above description, in case of resource allocation type 0, the RBG determination is associated with at least one of the following information:

a starting position of the first RB set;

the size of the first RB set.

Wherein the size of the RBG is related to the size of the first set of RBs.

Specifically, the size of the first RBG in the first RB set is related to the size of the RBG and the starting position of the first RB set.

And after receiving the indication of the bitmap, the terminal determines RBG allocated to the physical shared channel according to the first RB set and the indication. The terminal and the network side have the same understanding on the division of RBGs, namely, the number of RBGs and the size of each RBG are calculated by adopting the mode.

In the downlink resource allocation type 1 (which may also be referred to as resource allocation mode 1) defined for NR, the resources allocated to the terminal are a continuous segment of Virtual RBs (VRBs), where the VRBs may be centralized or distributed, and the resources are inside the activated BWP. Each resource allocation state corresponds to an RIV value, and the terminal can correspondingly obtain the initial VRB RB of the allocated resources according to the RIV indication contained in the DCI _start And length information L of continuously allocated resources _RBs The method comprises the steps of carrying out a first treatment on the surface of the In particular, the method comprises the steps of,

in the related art, ifThen->OtherwiseWherein L is _RBs Not less than 1 and not more than->

As can be seen from the above description, in the related art, when determining resource allocation using the resource allocation type 1, the size of BWP is activated as a calculation parameter of RIV value.

In the embodiment of the present application, when determining resource allocation, that is, determining resources of the physical shared channel, using the resource allocation type 1, the size of the first RB set (that is, the size of the activated RB set in the plurality of RB sets in BWP) (assumed to be L) is used as the calculation parameter of RIV.

In particular, ifThen riv=l (L _RBs -1)+RB _start The method comprises the steps of carrying out a first treatment on the surface of the Otherwise riv=l (L-L _RBs +1)+(L-1-RB _start ). Wherein L is _RBs Not less than 1 and not more than L-RB _start 。

As can be seen from the above description, in the embodiments of the present application, L is used instead of L in calculating the RIV valueAnd RB (RB) _start A value of 0 corresponds to the starting RB value S of the currently active RB set, that is, RB starting position 0 in the RIV calculation corresponds to the starting position of the first RB set.

The terminal can obtain the initial VRB RB of the physical shared channel according to the RIV value indicated in the DCI _start And length information L of continuously allocated resources _RBs 。

Wherein, the RIV indication and the frequency domain resource allocation field in the DCI may be referred to as RB allocation information in the DCI. The terminal and the network side have the same understanding on the calculation of the RIV value, namely the size of the first RB set is used as a calculation parameter of the RIV.

It should be noted that, for the other resource allocation types except the resource allocation types 0 and 1, in the resource allocation manner using the size of the activated BWP and/or the starting RB of the activated BWP as parameters, by adopting the scheme in the embodiment of the present application, resource allocation is performed using the size of the first RB set and/or the starting RB of the first RB set as parameters.

That is, in the embodiment of the present application, no matter what kind of resource allocation type, the resource allocation is performed by taking the size of the first RB set and/or the starting RB of the first RB set as parameters.

Correspondingly, the embodiment of the application also provides an information transmission method applied to the network equipment (particularly, the base station such as gNB), which comprises the following steps:

Wherein in an embodiment, the sending the first information to the terminal includes one of:

In an embodiment, the method may further comprise:

The embodiment of the application also provides an information transmission method, as shown in fig. 4, which includes:

step 401: the network device sends first information to the terminal, wherein the first information indicates a first RB set, the first RB set is one RB set in N RB sets predefined in BWP or configured by the network, N is an integer greater than or equal to 1, each RB set comprises a plurality of continuous RBs, the size of each RB set is smaller than or equal to the bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel;

Step 402: and the terminal receives the first information.

Here, it should be noted that: the specific processing procedures of the terminal and the network device are described in detail above, and are not described in detail here.

According to the information transmission method provided by the embodiment of the application, a network device sends first information to a terminal, the first information indicates a first RB set, the first RB set is one RB set in N RB sets predefined in BWP or configured by a network, N is an integer greater than or equal to 1, each RB set comprises a plurality of continuous RBs, the size of each RB set is smaller than or equal to the bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel; and the terminal receives the first information. According to the scheme provided by the embodiment of the application, a plurality of RB sets are configured or predefined in the BWP, each RB set comprises a plurality of continuous RBs, one of the plurality of RB sets is indicated to serve as a reference RB for sharing channel resource allocation through the indication information, so that the frequency domain resource range of a physical sharing channel (namely a service channel) is known in advance, only data of a physical sharing channel region is received, buffering of data of the whole bandwidth of the BWP is not needed, complexity of a terminal is reduced, and resource scheduling efficiency is improved; meanwhile, because the indicated RB set is small bandwidth for the service channel, the indication bits are reduced, the indication overhead of the control channel is reduced, and the efficiency of resource scheduling is improved.

In order to implement the method of the embodiment of the present application, the embodiment of the present application further provides an information transmission device, which is disposed on a terminal, as shown in fig. 5, and the device includes:

a receiving unit 501, configured to receive first information, where the first information indicates a first RB set, where the first RB set is one RB set of N RB sets predefined in a bandwidth part BWP or configured by a network, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, and a size of each RB set is less than or equal to a bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

In an embodiment, the receiving unit 501 is further configured to receive second information, where the second information indicates N RB sets in the BWP.

In an embodiment, the receiving unit 501 is configured to receive the first information by one of the following manners:

receiving DCI, wherein the DCI comprises the first information;

receiving a MAC CE, the MAC CE including the first information;

In one embodiment, as shown in fig. 5, the apparatus may further include:

A first determining unit 502, configured to determine a frequency domain resource of the physical shared channel according to the first RB set and RB allocation information in DCI.

Wherein, in an embodiment, the first determining unit 502 is further configured to determine an RBG.

In an embodiment, the first determining unit 502 is further configured to calculate RIV.

In practical applications, the receiving unit 501 may be implemented by a communication interface in an information transmission device, and the first determining unit 502 may be implemented by a processor in the information transmission device.

In order to implement the method at the network device side in the embodiment of the present application, the embodiment of the present application further provides an information transmission device, which is disposed on a network device, as shown in fig. 6, and the device includes:

a sending unit 601, configured to send first information to a terminal, where the first information indicates a first RB set, where the first RB set is one RB set of N RB sets predefined in BWP or configured by a network, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, and a size of each RB set is less than or equal to a bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

In an embodiment, the sending unit 601 is further configured to send second information to the terminal, where the second information indicates N RB sets in the BWP.

In an embodiment, the transmitting unit 601 transmits the first information by one of the following means:

In one embodiment, as shown in fig. 6, the apparatus may further include:

and a second determining unit 602 for determining the RBG.

In an embodiment, the second determining unit 602 is further configured to calculate RIV.

In practical applications, the sending unit 601 may be implemented by a communication interface in the information transmission device, and the second determining unit 602 may be implemented by a processor in the information transmission device.

It should be noted that: in the information transmission device provided in the above embodiment, only the division of each program module is used for illustration, and in practical application, the processing allocation may be performed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules, so as to complete all or part of the processing described above. In addition, the information transmission device and the information transmission method provided in the foregoing embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.

Based on the hardware implementation of the program modules, and in order to implement the method at the terminal side in the embodiment of the present application, the embodiment of the present application further provides a terminal, as shown in fig. 7, the terminal 700 includes:

a first communication interface 701 capable of information interaction with a network side;

a first processor 702, connected to the first communication interface 701, for implementing information interaction with a network side, and configured to execute a method provided by one or more technical solutions on the terminal side when running a computer program;

a first memory 703, the computer program being stored on the first memory 703.

Specifically, the first communication interface 701 is configured to receive first information, where the first information indicates a first RB set, where the first RB set is one RB set of N RB sets predefined in BWP or configured by a network, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, and a size of each RB set is less than or equal to a bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

Wherein in an embodiment, the first communication interface 701 is further configured to receive second information, where the second information indicates N RB sets in the BWP.

In an embodiment, the first communication interface 701 is configured to receive the first information by one of the following manners:

receiving DCI, wherein the DCI comprises the first information;

receiving a MAC CE, the MAC CE including the first information;

In an embodiment, the first processor 702 is configured to determine frequency domain resources of the physical shared channel according to the RB allocation information in the DCI and the first RB set.

Wherein, in an embodiment, the first processor 702 is further configured to determine an RBG.

In one embodiment, the first processor 702 is further configured to calculate a RIV.

It should be noted that: the specific processing procedure of the first processor 702 and the first communication interface 701 can be understood by referring to the above method.

Of course, in actual practice, the various components in terminal 700 are coupled together via bus system 704. It is appreciated that bus system 704 is used to enable connected communications between these components. The bus system 704 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration, the various buses are labeled as bus system 704 in fig. 7.

The first memory 703 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 700. Examples of such data include: any computer program for operating on terminal 700.

The method disclosed in the embodiments of the present application may be applied to the first processor 702, or implemented by the first processor 702. The first processor 702 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method may be implemented by integrated logic of hardware in the first processor 702 or instructions in software form. The first processor 702 described above may be a general purpose processor, a digital signal processor (DSP, digital Signal Processor), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The first processor 702 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the first memory 703, and the first processor 702 reads information in the first memory 703, and in combination with its hardware, performs the steps of the method described above.

In an exemplary embodiment, the terminal 700 may be implemented by one or more application specific integrated circuits (ASIC, application Specific Integrated Circuit), DSPs, programmable logic devices (PLD, programmable Logic Device), complex programmable logic devices (CPLD, complex Programmable Logic Device), field programmable gate arrays (FPGA, field-Programmable Gate Array), general purpose processors, controllers, microcontrollers (MCU, micro Controller Unit), microprocessors (Microprocessor), or other electronic components for performing the aforementioned methods.

Based on the hardware implementation of the program modules, and in order to implement the method on the network device side in the embodiment of the present application, the embodiment of the present application further provides a network device, as shown in fig. 8, where the network device 800 includes:

a second communication interface 801 capable of information interaction with a terminal;

a second processor 802, connected to the second communication interface 801, for implementing information interaction with a terminal, and configured to execute a method provided by one or more technical solutions on the network device side when running a computer program;

a second memory 803, the computer program being stored on the second memory 803.

Specifically, the second communication interface 801 is configured to send first information to a terminal, where the first information indicates a first RB set, where the first RB set is one RB set of N RB sets predefined in BWP or configured by a network, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, and a size of each RB set is less than or equal to a bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

Wherein in an embodiment, the second communication interface 801 is further configured to send second information to the terminal, where the second information indicates N RB sets in the BWP.

In one embodiment, the second communication interface 801 transmits the first information by one of:

In one embodiment, the second processor 802 is configured to determine an RBG.

Wherein in one embodiment, the second processor 82 is further configured to calculate a RIV.

It should be noted that: the specific processing procedure of the second processor 802 and the second communication interface 801 can be understood by referring to the above method.

Of course, in actual practice, the various components in network device 800 are coupled together by bus system 804. It is to be appreciated that the bus system 804 is employed to enable connected communications between these components. The bus system 804 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 804 in fig. 8.

The second memory 803 in the present embodiment is used to store various types of data to support the operation of the network device 800. Examples of such data include: any computer program for operating on network device 800.

The method disclosed in the embodiments of the present application may be applied to the second processor 802, or implemented by the second processor 802. The second processor 802 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the method described above may be performed by integrated logic circuits of hardware or instructions in software form in the second processor 802. The second processor 802 described above may be a general purpose processor, DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 802 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 803, said second processor 802 reading the information in the second memory 803, in combination with its hardware performing the steps of the method as described above.

In an exemplary embodiment, the network device 800 may be implemented by one or more ASIC, DSP, PLD, CPLD, FPGA, general purpose processors, controllers, MCU, microprocessor, or other electronic elements for performing the foregoing methods.

It is to be understood that the memories (the first memory 703 and the second memory 803) of the embodiments of the present application may be volatile memories or nonvolatile memories, and may include both volatile memories and nonvolatile memories. Wherein the nonvolatile Memory may be Read Only Memory (ROM), programmable Read Only Memory (PROM, programmable Read-Only Memory), erasable programmable Read Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable programmable Read Only Memory (EEPROM, electrically Erasable Programmable Read-Only Memory), magnetic random access Memory (FRAM, ferromagnetic random access Memory), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or compact disk Read Only Memory (CD-ROM, compact Disc Read-Only Memory); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be random access memory (RAM, random Access Memory), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (SRAM, static Random Access Memory), synchronous static random access memory (SSRAM, synchronous Static Random Access Memory), dynamic random access memory (DRAM, dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (ddr SDRAM, double Data Rate Synchronous Dynamic Random Access Memory), enhanced synchronous dynamic random access memory (ESDRAM, enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, syncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, direct Rambus Random Access Memory). The memory described in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

In order to implement the method provided by the embodiment of the present application, the embodiment of the present application further provides an information transmission system, as shown in fig. 9, where the system includes: network device 901 and terminal 902.

Here, it should be noted that: the specific processing procedures of the network device 901 and the terminal 902 are described in detail above, and will not be described in detail here.

In an exemplary embodiment, the present application further provides a storage medium, i.e. a computer storage medium, specifically a computer readable storage medium, for example, including a first memory 703 storing a computer program, where the computer program may be executed by the first processor 702 of the terminal 700 to perform the steps of the foregoing terminal-side method, and further including a second memory 803 storing a computer program, where the computer program may be executed by the second processor 802 of the network device 800 to perform the steps of the foregoing network-side method. The computer readable storage medium may be FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first," "second," etc. are used to distinguish similar objects and not necessarily to describe a particular order or sequence.

In addition, the embodiments described in the present application may be arbitrarily combined without any collision.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application.

Claims

1. An information transmission method, applied to a terminal, comprising:

receiving first information, wherein the first information indicates a first RB set, the first RB set is one RB set of N RB sets predefined or configured by a network in a bandwidth part BWP, N is an integer greater than or equal to 1, each RB set includes a plurality of consecutive RBs, the size of each RB set is less than or equal to the bandwidth of the BWP, and the first RB set is related to frequency domain resource allocation of a physical shared channel.

2. The method according to claim 1, wherein the method further comprises:

3. The method of claim 2, wherein the second information comprises one of:

starting position information of each RB set;

the resource indicator value RIV information for each RB set.

4. The method of claim 3, wherein the second information further comprises RB set size information in the case that the second information comprises resource start position information of each RB set.

5. The method of claim 1, wherein the receiving the first information comprises one of:

receiving Downlink Control Information (DCI), wherein the DCI comprises the first information;

receiving a media access control element (MAC CE), wherein the MAC CE contains the first information;

6. The method of claim 5, wherein a frequency domain resource allocation field in the DCI carries the first information if the DCI contains the first information.

7. The method according to claim 1, wherein the method further comprises:

8. The method of claim 7, wherein the step of determining the position of the probe is performed,

and determining the frequency domain resource of the physical shared channel according to the first RB set and the RB allocation information in the DCI.

9. Method according to any of claims 1 to 8, characterized in that in case of resource allocation type 0, the determination of the resource block group RBG is associated with at least one of the following information:

a starting position of the first RB set;

The size of the first RB set.

10. The method of claim 9, wherein a size of the RBG is related to a size of the first set of RBs.

11. The method of claim 10, wherein a size of a first RBG in the first set of RBs is related to a size of an RBG and a starting location of the first set of RBs;

and/or the number of the groups of groups,

12. The method according to any of claims 1 to 8, characterized in that in determining the resources of the physical shared channel in case of resource allocation type 1, the size of the first set of RBs is used as parameter for RIV calculation.

13. The method of claim 12, wherein RB start position 0 in the RIV calculation corresponds to a start position of the first RB set.

14. An information transmission method, applied to a network device, comprising:

15. The method of claim 14, wherein the method further comprises:

16. The method of claim 15, wherein the second information comprises one of:

starting position information of each RB set;

RIV information for each RB set.

17. The method of claim 16, wherein the second information further comprises RB set size information if the second information comprises resource start position information for each RB set.

18. The method of claim 14, wherein the sending the first information to the terminal comprises one of:

19. The method of claim 18, wherein a frequency domain resource allocation field in the DCI carries the first information if the DCI contains the first information.

20. The method according to any of the claims 14 to 19, characterized in that in case of resource allocation type 0, the RBG determination is associated with at least one of the following information:

a starting position of the first RB set;

the size of the first RB set.

21. The method of claim 20, wherein a size of the RBG is related to a size of the first set of RBs.

22. The method of claim 21, wherein a size of a first RBG in the first set of RBs is related to a size of an RBG and a starting location of the first set of RBs;

and/or the number of the groups of groups,

23. The method according to any of the claims 14 to 19, characterized in that in determining the resources of the physical shared channel in case of resource allocation type 1, the size of the first set of RBs is used as parameter for RIV calculation.

24. The method of claim 23, wherein RB start position 0 in the RIV calculation corresponds to a start position of the first RB set.

25. An information transmission apparatus, comprising:

26. An information transmission apparatus, comprising:

27. A terminal, comprising: a first processor and a first communication interface; wherein,

28. A network device, comprising: a second processor and a second communication interface; wherein,

29. A terminal, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is adapted to perform the steps of the method of any of claims 1 to 13 when the computer program is run.

30. A network device, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is adapted to perform the steps of the method of any of claims 14 to 24 when the computer program is run.

31. A storage medium having stored thereon a computer program, which when executed by a processor, performs the steps of the method of any of claims 1 to 13 or performs the steps of the method of any of claims 14 to 24.