CN107113874B

CN107113874B - Base station, user terminal and data transmission method

Info

Publication number: CN107113874B
Application number: CN201580072288.6A
Authority: CN
Inventors: 吴强; 曲秉玉; 薛丽霞; 孙昊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-09-23
Filing date: 2015-09-23
Publication date: 2020-10-09
Anticipated expiration: 2035-09-23
Also published as: CN107113874A; WO2017049512A1

Abstract

The invention discloses a data transmission method, and belongs to the field of communication. The method comprises the following steps: a base station distributes scheduling-free resources for a user terminal, wherein the scheduling-free resources comprise n resource blocks; negotiating with the user terminal to generate an identity sequence of the user terminal; when data sent by a specified resource block is detected, an identity recognition sequence is extracted from the data, a matching value between the extracted identity recognition sequence and the identity sequence is calculated, and when the matching value is greater than the first threshold value, the data is determined to be the data sent by the user terminal.

Description

Base station, user terminal and data transmission method

Technical Field

The present invention relates to the field of communications, and in particular, to a base station, a user terminal, and a data transmission method.

Background

In wireless communication, time-frequency resources used when a User Equipment (UE) communicates with a base station are generally scheduled by the base station in a unified manner. In a Long Term Evolution (LTE) system, uplink and downlink data scheduling of a base station is implemented through a Physical Downlink Control Channel (PDCCH).

Taking a Control Channel Element (CCE) aggregation level of PDCCH signaling as 2CCE, a downlink Control Channel of the system supports at most 44 PDCCH signaling under a condition that an LTE system bandwidth is 20 MHz. Considering that each UE needs both uplink scheduling and downlink scheduling, a downlink control channel of the system can only support scheduling of 22 UEs, and when the number of UEs connected to the base station is large, the scheduling capability of the base station is insufficient, which causes high delay between the UE and the base station and affects the communication performance of the system.

Disclosure of Invention

In order to solve the problem that the scheduling capability of a base station is insufficient to cause high delay between UE and the base station when the base station is scheduled through PDCCH signaling, the application provides a base station, a user terminal and a data transmission method.

In a first aspect, a base station is provided, which includes:

the resource allocation module is used for allocating scheduling-free resources for the user terminal;

a sending module, configured to send a resource configuration message for indicating the scheduling-free resource to the user terminal, where the scheduling-free resource is a resource used by the user terminal to transmit data without being scheduled by the base station, and the scheduling-free resource includes n resource blocks, where n is greater than or equal to 1;

a sequence negotiation module, configured to negotiate with the user terminal to generate an identity sequence of the user terminal;

a sequence extraction module, configured to extract an identity identification sequence from the data when detecting data carried by the specified resource block, where the specified resource block is one of the n resource blocks;

the matching module is used for calculating the matching value between the extracted identity recognition sequence and the identity sequence;

a detection module for detecting whether the matching value is greater than a first threshold;

and the determining module is used for determining the data as the data sent by the user terminal if the detection result of the detecting module is that the matching value is greater than the first threshold value.

In a first possible implementation manner of the first aspect, the base station further includes:

a policy determining module, configured to determine a scheduling-free resource reconfiguration policy according to the usage information of the specified resource block, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal;

the sending module is further configured to send a message including the scheduling-free resource reconfiguration policy to the user terminal.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the policy determination module is specifically configured to

When the usage information indicates that the number of the user terminals allocated with the specified resource blocks is increased to be above a second threshold value, determining the scheduling-free resource reconfiguration strategy as increasing m resource blocks on the basis of the scheduling-free resources, wherein m is more than or equal to 1;

when the usage information indicates that the number of the user terminals allocated with the specified resource block is reduced below a third threshold value, determining the scheduling-free resource reconfiguration strategy to reduce p resource blocks including the specified resource block on the basis of the scheduling-free resource, wherein n is greater than p and is not less than 1;

when the total amount of data transmitted to the base station by the appointed resource block in unit time is larger than a fourth threshold value, determining the scheduling-free resource reconfiguration strategy as increasing q resource blocks on the basis of the scheduling-free resources, wherein q is larger than or equal to 1;

when the use information indicates that the total amount of data transmitted to the base station through the specified resource block in unit time is smaller than a fifth threshold value, determining the scheduling-free resource reconfiguration strategy to reduce i resource blocks including the specified resource block on the basis of the scheduling-free resource, wherein n is larger than i and is larger than or equal to 1;

and when the use information indicates that the number of times of the data transmitted by the appointed resource block in unit time is detected to be larger than a sixth threshold value, determining the scheduling-free resource reconfiguration strategy as increasing j resource blocks on the basis of the scheduling-free resources, wherein j is larger than or equal to 1.

With reference to the first aspect, the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the sequence negotiation module is specifically configured to

Negotiating with the user terminal to generate a demodulation reference signal (DMRS) sequence based on the identification of the user terminal;

alternatively, the first and second electrodes may be,

and negotiating with the user terminal to generate a DMRS sequence based on the characteristic information of the cell where the user terminal is located, wherein the characteristic information of the cell comprises the identification of the cell or a pseudo random sequence pre-allocated to the cell by the base station.

In a second aspect, a user terminal is provided, the user terminal comprising:

a receiving module, configured to receive a resource configuration message sent by a base station;

a configuration module, configured to configure a scheduling-free resource according to the resource configuration message, where the scheduling-free resource is a resource used by the user terminal to transmit data without being scheduled by the base station, and the scheduling-free resource includes n resource blocks, where n is greater than or equal to 1;

a sequence negotiation module, configured to negotiate, by the ue and the base station, to generate an identity sequence of the ue;

a selection module, configured to select one resource block from the n resource blocks as a designated resource block;

a sending module, configured to send data including the identity sequence to the base station through the designated resource block.

In a first possible implementation manner of the second aspect, the base station extracts an identification sequence from the data, calculates a matching value between the extracted identification sequence and the identification sequence, and determines the data as the data sent by the user terminal when it is detected that the matching value is greater than a first threshold.

In a second possible implementation manner of the second aspect, the receiving module is further configured to receive a message that is sent by the base station and includes a scheduling-free resource reconfiguration policy, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal;

the configuration module is configured to reconfigure the scheduling-free resource according to the scheduling-free resource reconfiguration policy.

In a third possible implementation manner of the second aspect, the selecting module is specifically configured to randomly select one resource block from the n resource blocks as the designated resource block.

With reference to the second aspect or any one of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner of the second aspect, the sequence negotiation module is specifically configured to

Negotiating with the base station to generate a demodulation reference signal (DMRS) sequence based on the identification of the user terminal;

alternatively, the first and second electrodes may be,

and negotiating with the base station to generate a DMRS sequence based on the characteristic information of the cell where the user terminal is located, wherein the characteristic information of the cell comprises the identification of the cell or a pseudo random sequence pre-allocated to the cell by the base station.

In a third aspect, a base station is provided, which includes: a processor, a transmitter, and a receiver;

the processor is configured to allocate a scheduling-free resource to a user terminal and control the transmitter to send a resource configuration message indicating the scheduling-free resource to the user terminal, where the scheduling-free resource is a resource used by the user terminal to transmit data without being scheduled by the base station, and the scheduling-free resource includes n resource blocks, where n is greater than or equal to 1;

the processor is configured to control the transmitter and the receiver to negotiate with the user terminal to generate an identity sequence of the user terminal;

the processor is configured to extract an identity identification sequence from the data when the data carried by the specified resource block is detected, where the specified resource block is one of the n resource blocks;

the processor is used for calculating a matching value between the extracted identity recognition sequence and the identity sequence and detecting whether the matching value is greater than a first threshold value;

and the processor is configured to determine the data as the data sent by the user terminal if the detection result indicates that the matching value is greater than the first threshold.

In a first possible implementation manner of the third aspect, the processor is further configured to determine a scheduling-free resource reconfiguration policy according to the usage information of the specified resource block, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal;

the processor is further configured to control the transmitter to send a message containing the scheduling-free resource reconfiguration policy to the user terminal.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, when the scheduling-free resource reconfiguration policy is determined according to the usage information of the specified resource block, the processor is specifically configured to

With reference to the third aspect, the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the processor is specifically configured to, when negotiating with the user terminal to generate an identity sequence of the user terminal, perform the following steps

alternatively, the first and second electrodes may be,

In a fourth aspect, a user terminal is provided, which includes: a processor, a transmitter, and a receiver;

the processor is configured to control the receiver to receive a resource configuration message sent by a base station, and configure a scheduling-free resource according to the resource configuration message, where the scheduling-free resource is a resource used by the user terminal to transmit data without being scheduled by the base station, and the scheduling-free resource includes n resource blocks, where n is greater than or equal to 1;

the processor is configured to control the transmitter and the receiver to negotiate with the base station to generate an identity sequence of the user terminal;

the processor is configured to select one resource block from the n resource blocks as a designated resource block, and control the transmitter to transmit data including the identity sequence to the base station through the designated resource block.

In a first possible implementation manner of the fourth aspect, the base station extracts an identification sequence from the data, calculates a matching value between the extracted identification sequence and the identification sequence, and determines the data as the data sent by the user terminal when it is detected that the matching value is greater than a first threshold.

In a second possible implementation manner of the fourth aspect, the processor is further configured to control the receiver to receive a message, which is sent by the base station and contains a scheduling-free resource reconfiguration policy, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in a scheduling-free resource allocated to the user terminal;

the processor is further configured to reconfigure the scheduling-free resource according to the scheduling-free resource reconfiguration policy.

In a third possible implementation manner of the fourth aspect, when one resource block is selected from the n resource blocks as a designated resource block, the processor is specifically configured to randomly select one resource block from the n resource blocks as the designated resource block.

With reference to the fourth aspect or any one of the first to third possible implementation manners of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the processor is specifically configured to, when negotiating with the base station to generate the identity sequence of the user terminal, perform negotiation with the base station to generate the identity sequence of the user terminal

alternatively, the first and second electrodes may be,

In a fifth aspect, a data transmission method is provided, where the method includes:

a base station distributes scheduling-free resources for a user terminal and sends a resource configuration message for indicating the scheduling-free resources to the user terminal, wherein the scheduling-free resources are used by the user terminal for transmitting data without being scheduled by the base station, the scheduling-free resources comprise n resource blocks, and n is more than or equal to 1;

the base station and the user terminal negotiate to generate an identity sequence of the user terminal;

when the base station detects the data carried by the appointed resource block, extracting an identity recognition sequence from the data, wherein the appointed resource block is one of the n resource blocks;

the base station calculates a matching value between the extracted identity recognition sequence and the identity sequence, and detects whether the matching value is greater than a first threshold value;

and if the detection result is that the matching value is greater than the first threshold value, the base station determines the data as the data sent by the user terminal.

In a first possible implementation manner or of the fifth aspect, the method further includes:

the base station determines a scheduling-free resource reconfiguration strategy according to the use information of the specified resource block, wherein the scheduling-free resource reconfiguration strategy is used for increasing or decreasing the resource block in the scheduling-free resource allocated to the user terminal;

and the base station sends a message containing the scheduling-free resource reconfiguration strategy to the user terminal.

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the determining, by the base station, a scheduling-free resource reconfiguration policy according to the usage information of the specified resource block, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal, and the determining includes:

With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, or the second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the negotiating, by the base station and the user terminal, the generating of the identity sequence of the user terminal includes:

the base station and the user terminal negotiate to generate a demodulation reference signal (DMRS) sequence based on the identification of the user terminal;

alternatively, the first and second electrodes may be,

and the base station and the user terminal negotiate to generate a DMRS sequence based on the characteristic information of the cell where the user terminal is located, wherein the characteristic information of the cell comprises the identification of the cell or a pseudo random sequence pre-allocated to the cell by the base station.

In a sixth aspect, a data transmission method is provided, the method comprising:

a user terminal receives a resource configuration message sent by a base station, and configures a scheduling-free resource according to the resource configuration message, wherein the scheduling-free resource is used for transmitting data by the user terminal under the condition of not scheduling by the base station, the scheduling-free resource comprises n resource blocks, and n is more than or equal to 1;

the user terminal and the base station negotiate to generate an identity sequence of the user terminal;

and the user terminal selects one resource block from the n resource blocks as a designated resource block and sends data containing the identity sequence to the base station through the designated resource block.

In a first possible implementation manner of the sixth aspect, the base station extracts an identification sequence from the data, calculates a matching value between the extracted identification sequence and the identification sequence, and determines the data as the data sent by the user terminal when it is detected that the matching value is greater than a first threshold.

In a second possible implementation manner of the sixth aspect, the method further includes:

the user terminal receives a message which is sent by the base station and contains a scheduling-free resource reconfiguration strategy, wherein the scheduling-free resource reconfiguration strategy is used for increasing or decreasing resource blocks in scheduling-free resources distributed to the user terminal;

and the user terminal reconfigures the scheduling-free resource according to the scheduling-free resource reconfiguration strategy.

In a third possible implementation manner of the sixth aspect, the selecting, by the user terminal, one resource block from the n resource blocks as a designated resource block includes:

and the user terminal randomly selects one resource block from the n resource blocks as the appointed resource block.

With reference to the sixth aspect or any one of the first to third possible implementation manners of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the negotiating, by the user terminal and the base station, a generation of the identity sequence of the user terminal includes:

the user terminal and the base station negotiate to generate a demodulation reference signal (DMRS) sequence based on the identification of the user terminal;

alternatively, the first and second electrodes may be,

the user terminal and the base station negotiate to generate a DMRS sequence based on the characteristic information of the cell where the user terminal is located, wherein the characteristic information of the cell comprises the identification of the cell or a pseudo random sequence pre-allocated to the cell by the base station.

The base station distributes the scheduling-free resource for the user terminal and negotiates with the user terminal for an identity sequence, when the user terminal subsequently sends data, the scheduling-free resource can be directly used for sending the data containing the identity sequence, when the base station detects the data carried by the appointed resource block, the user terminal sending the data is identified according to the identity sequence in the data, the base station does not need to carry out resource scheduling signaling in the data transmission process, a large amount of signaling interaction is reduced, and the delay of data transmission between the base station and the user terminal is effectively reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an architectural diagram of a network environment to which the present invention relates;

fig. 2 is a flowchart of a method of data transmission according to an embodiment of the present invention;

fig. 3 is a flowchart of a method of data transmission according to another embodiment of the present invention;

fig. 4A is a flowchart of a method of data transmission according to another embodiment of the present invention;

FIG. 4B is a diagram illustrating a re-allocation of scheduling-free resources according to the embodiment shown in FIG. 4A;

fig. 5 is a block diagram of a base station provided in an embodiment of the present invention;

fig. 6 is a block diagram of a user terminal according to another embodiment of the present invention;

fig. 7 is a block diagram of a network device provided by an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, an architecture diagram of a network environment to which the present invention relates is shown. The network comprises the following network devices: a base station 110 and at least one user terminal 120.

In this embodiment of the present invention, when the ue 120 accesses the base station 110, the base station 110 may pre-allocate, for the ue 120, a scheduling-free resource used for transmitting data without scheduling by the base station, and negotiate an identity sequence with the ue 120, when the ue 120 transmits data to the base station 110, the scheduling-free resource pre-allocated by the base station 110 and the negotiated identity sequence may be directly used for scheduling-free transmission without scheduling by the base station 110, and when the base station 110 detects data carried by the scheduling-free resource, the ue that sends the data is distinguished by analyzing the identity sequence included in the scheduling-free resource.

In the above solution of the present invention, the resource for scheduling exemption is pre-allocated to the user terminal 120 by the base station 110, and the user terminal 120 does not need to perform scheduling by the base station 110 when sending data, and directly uses the resource for scheduling exemption to send data, so that a large amount of signaling interaction can be reduced, and delay of data transmission between the base station and the user terminal can be effectively reduced.

Referring to fig. 2, a flowchart of a method for transmitting data according to an embodiment of the present invention is shown. The data transmission method may be used in the base station 110 in the implementation environment shown in fig. 1. The data transmission method may include:

step 201, a base station allocates a scheduling-free resource to a user terminal, and sends a resource allocation message for indicating the scheduling-free resource to the user terminal, where the scheduling-free resource includes n resource blocks, and n is greater than or equal to 1.

The scheduling-free resource is a resource used by the ue to transmit data without scheduling by the base station.

Step 202, the base station negotiates with the ue to generate an identity sequence of the ue.

Step 203, when the base station detects the data carried by the assigned resource block, the base station extracts an identity identification sequence from the data, where the assigned resource block is one of the at least one resource block.

Step 204, the base station calculates the extracted matching value between the identity identification sequence and the identity sequence, and detects whether the matching value is greater than a first threshold value.

In step 205, if the detection result is that the matching value is greater than the first threshold, the base station determines the data as the data sent by the ue.

In summary, in the data transmission method provided in the embodiments of the present invention, the base station allocates the scheduling-free resource to the user terminal, and negotiates with the user terminal for an identity sequence, when the user terminal subsequently sends data, the scheduling-free resource may be directly used to send data including the identity sequence, and when the base station detects the data carried by the specified resource block, the base station identifies the user terminal sending the data according to the identity sequence in the data, and the data transmission process does not require the base station to perform resource scheduling signaling, thereby reducing a large amount of signaling interactions, and effectively reducing delay in data transmission between the base station and the user terminal.

Referring to fig. 3, a flowchart of a method for transmitting data according to an embodiment of the present invention is shown. The data transmission method may be used in the user terminal 120 of the implementation environment shown in fig. 1. The data transmission method may include:

step 301, a user terminal receives a resource allocation message sent by a base station, and allocates a scheduling-free resource according to the resource allocation message, where the scheduling-free resource includes n resource blocks, and n is greater than or equal to 1.

Wherein the scheduling-free resource is a resource used by the ue to transmit data without scheduling by the base station.

Step 302, the ue negotiates with the base station to generate an identity sequence of the ue.

Step 303, the ue selects a resource block from the n resource blocks as a designated resource block, and sends data including the identity sequence to the base station through the designated resource block, so that the base station extracts the identity sequence from the data, calculates a matching value between the extracted identity sequence and the identity sequence, and determines the data as the data sent by the ue when detecting that the matching value is greater than a first threshold.

In summary, in the data transmission method provided in the embodiments of the present invention, the user terminal receives the resource configuration information sent by the base station to configure the scheduling-free resource, and negotiates with the base station for an identity sequence, when the user terminal subsequently sends data, the user terminal can directly send data including the identity sequence using the scheduling-free resource, and when the base station detects the data carried by the specified resource block, the base station identifies the user terminal sending the data according to the identity sequence in the data, and the data transmission process does not require the base station to perform resource scheduling signaling, thereby reducing a large amount of signaling interactions, and effectively reducing the delay of data transmission between the base station and the user terminal.

Referring to fig. 4A, a flowchart of a method for transmitting data according to an embodiment of the invention is shown. The data transmission method may be used in the implementation environment shown in fig. 1. The data transmission method may include:

step 401, the user terminal accesses the base station.

Step 402, the base station allocates scheduling-free resources to the user terminal, and sends a resource allocation message for indicating the scheduling-free resources to the user terminal, wherein the scheduling-free resources include n resource blocks, and n is greater than or equal to 1.

The resource blocks are used for indicating a segment of time-frequency resources, and the size of each resource block may be the same or different. For example, in the LTE system, it may be configured that each resource block has the same size, and the size of each resource block is 1 subframe × 24 subcarriers.

The base station may partition a portion of the available time-frequency resources as scheduling-free resources to be allocated to each user terminal accessing the base station. Specifically, when the scheduling-free resource is divided, the base station may count data transmission status information in a period of time before the current time, where the data transmission status information may include the total number of the user terminals accessing the base station, the total flow of data transmitted between the base station and each user terminal, and a Quality of Service (QoS) required by data transmitted between the base station and each user terminal. The base station determines the proportion of scheduling-free resources to all available time-frequency resources according to the data transmission state information obtained by statistics, specifically, the proportion is in a direct proportional relation with the total amount of user terminals accessed to the base station, in an inverse proportional relation with the total flow of data transmitted between the base station and each user terminal, and in an inverse proportional relation with the service quality required by the data transmitted between the base station and each user terminal; that is, the more the total number of the user terminals accessing the base station, the smaller the total flow of data transmitted between the base station and each user terminal, the lower the service quality required by the data transmitted between the base station and each user terminal, the higher the proportion of the scheduling-free resource in all available time-frequency resources, and vice versa. In addition, the base station may also set an upper limit for the proportion of the non-scheduling resources to all available time-frequency resources, for example, when the upper limit of the proportion is 40%, the base station may only divide 40% of all available time-frequency resources into schedulable resources at most.

When a user terminal accesses a base station, the base station allocates scheduling-free resources of a fixed size to the user terminal, for example, initially allocates two resource blocks as the scheduling-free resources, and sends a resource allocation message to the user terminal, where the resource allocation message is used to indicate the scheduling-free resources allocated to the user terminal, for example, a resource block number of the scheduling-free resources, or a time domain and a frequency band of the scheduling-free resources.

Step 403, the user terminal configures the scheduling-free resource according to the resource configuration message.

And after receiving the resource configuration message sent by the base station, the user terminal configures the time-frequency resource indicated by the resource configuration message into a scheduling-free resource.

In step 404, the base station negotiates with the ue to generate an identity sequence of the ue.

The base station and the user terminal negotiate to generate a demodulation reference signal (DMRS) sequence based on the identification of the user terminal; or, the base station and the user terminal negotiate to generate a DMRS sequence based on the characteristic information of the cell in which the user terminal is located, where the characteristic information of the cell includes an identifier of the cell or a pseudo random sequence pre-allocated to the cell by the base station.

For example, the base station may obtain an identifier of the user equipment, and calculate a demodulation Reference Signal (DMRS) sequence of the user equipment according to the identifier of the user equipment and a preset first algorithm, where the DMRS sequence is a sequence obtained by cyclically shifting a DMRS root sequence, and the base station may directly transmit the DMRS sequence to the user equipment, or may transmit the DMRS root sequence and the cyclic shift to the user equipment, and the user equipment may cyclically obtain the DMRS sequence according to the cyclic shift. The identity of the ue may be an ID of the ue or a cell radio Network Temporary identity (cell radio Network Temporary Identifier, abbreviated as C-RNTI) of a cell in which the ue is located.

Or, the base station may also send the feature information transmitted by the base station to the user terminal, the user terminal generates the identity sequence according to the feature information and the second algorithm, the user terminal may send the generated identity sequence to the base station, or the base station itself may generate the identity sequence of the user terminal according to the feature information and the second algorithm. The characteristic information may be an identifier of the cell (such as a cell ID) or a pseudo random sequence pre-allocated by the base station for the cell.

In the conventional wireless communication system, the DMRS is used for the related demodulation of the data channel, but in the scheme shown in the embodiment of the present invention, the DMRS is used for the related demodulation of the data channel and also for the identity identification of the user terminal that transmits data, and it is not necessary to additionally add information for the identity identification in the transmitted data, so that transmission resources are saved and system performance is improved.

Step 405, the ue selects one resource block from the n resource blocks as a designated resource block, and sends data including the identity sequence to the base station through the designated resource block.

The user terminal randomly selects one resource block from the n resource blocks as the designated resource block.

When the number of the user terminals accessing the base station is large, scheduling-free resources of part of the user terminals may be the same, and if the user terminals select designated resource blocks for sending data from the scheduling-free resources through a certain ordered strategy, when the scheduling-free resources of the plurality of user terminals are the same, once the designated resource blocks selected by the plurality of user terminals collide, the subsequent plurality of user terminals always select the same designated resource blocks for sending, thereby causing data transmission of part of the user terminals to fail all the time and affecting transmission performance of the system. In contrast, in the method shown in the embodiment of the present invention, when the user terminal selects the designated resource block for transmitting data, one resource block is randomly selected from n resource blocks included in the scheduling-free resource for transmission, and when the scheduling-free resources of multiple user terminals are the same, even if the multiple user terminals select the same designated resource block at a certain time, different resource blocks may be selected for transmitting data at the next selection, so that the collision probability between multiple user terminals with the same scheduling-free resources is reduced, and the transmission performance of the system is improved.

In step 406, when the base station detects the data carried by the specified resource block, the base station extracts the identification sequence from the data.

When the user terminal sends data, the identity sequence is added to the designated position of the data, and correspondingly, when the base station detects the data carried by the scheduling-free resource distributed to the user terminal, the sequence extracted from the designated position can be used as the identity identification sequence.

Step 407, the base station calculates the extracted matching value between the identity identification sequence and the identity sequence, and detects whether the matching value is greater than a first threshold.

In step 408, if the detection result is that the matching value is greater than the first threshold, the base station determines the data as the data sent by the ue.

Because the base station may allocate the designated resource block to a plurality of user terminals at the same time as a scheduling-free resource, when detecting data carried by the designated resource block, the base station may perform matching degree calculation on the identity sequences of all the user terminals allocated with the designated resource block and the extracted identity identification sequences, and determine the sending terminal of the data for the user terminal whose matching value is greater than the first threshold value.

When the base station detects that a plurality of user terminals transmit data through the specified resource block at the same time, the base station may use a plurality of antennas to receive the data transmitted by the plurality of terminals through the specified resource block through a Multiple-Input Multiple-Output (MIMO) technique. When receiving data by using MIMO technology, if the number of user terminals simultaneously transmitting data through the specified resource block is less than or equal to the number of receiving antennas, the base station can demodulate all the user data under the condition of full rank, and if the number of user terminals simultaneously transmitting data through the specified resource block is greater than the number of receiving antennas, the base station cannot guarantee that all the data are demodulated even under the condition of full rank, thereby causing data demodulation failure of some user terminals, which is called that data transmitted through the specified resource block collide, and data demodulation failure transmitted by each user terminal once is recorded as collision once.

Step 409, the base station determines a reconfiguration strategy of scheduling-free resources according to the use information of the specified resource block.

Wherein the scheduling-free resource reconfiguration strategy is used for increasing or decreasing resource blocks in the scheduling-free resources allocated to the user terminal.

Please refer to fig. 4B, which illustrates a schematic diagram of reallocation of scheduling-free resources according to an embodiment of the present invention, wherein the scheduling-free resources originally allocated by the ue include resource blocks 1 to 4; when a base station adds resource blocks for a user terminal, the resource blocks 5 and 6 can be added on the basis of the resource blocks 1-4, and the original resource blocks 1-4 are not changed; when the base station reduces the resource blocks for the user terminal, the resource blocks 3 and 4 can be reduced on the basis of the resource blocks 1-4, and the original resource blocks 1 and 2 are not changed.

Resource blocks are added on the basis of the original scheduling-free resources, so that the robustness of transmission can be effectively improved. Specifically, when a resource block is added, if the base station sends a scheduling-free resource reconfiguration policy to the user terminal through the control signaling, and the user terminal fails to detect or misdetects the signaling, the understanding of the scheduling-free resource by the base station and the user terminal will diverge. At this time, the terminal still uses the resource block in the original scheduling-free resource for transmission, and if the scheduling-free resource reconfiguration strategy is to increase the resource block on the basis of the original scheduling-free resource, the base station still uses the identity sequence of the user terminal for matching after detecting data on the original scheduling-free resource, and at this time, the base station can detect the data sent by the user terminal. However, if the scheduling-free resource reconfiguration strategy does not increase resource blocks on the basis of the original scheduling-free resources but reallocates other resource blocks, the base station will not use the identity sequence of the user terminal for matching after detecting data on the original scheduling-free resources, thereby causing the data sent by the user terminal on the original scheduling-free resources to be missed by the base station.

Similarly, the resource blocks are reduced on the basis of the original scheduling-free resources, and the transmission robustness can also be improved to a certain extent. Specifically, when reducing resource blocks, if the base station sends a scheduling-free resource reconfiguration policy to the user terminal through the control signaling, and the user terminal fails to detect or misdetects the signaling, the understanding of the scheduling-free resource by the base station and the user terminal will diverge. At this time, the terminal still uses the resource block in the original scheduling-free resource for transmission, and if the scheduling-free resource reconfiguration strategy is to reduce the resource block on the basis of the original scheduling-free resource, the data can be identified by the base station when the user terminal transmits the data on the reserved part of the resource block in the original scheduling-free resource. However, if the scheduling-free resource reconfiguration strategy does not reduce the resource blocks based on the original scheduling-free resources, but reallocates other resource blocks, when the user terminal transmits data on all resource blocks in the original scheduling-free resources, the data cannot be identified by the base station, so that the data transmitted by the user terminal on the original scheduling-free resources is missed by the base station.

The specific methods for the base station to determine the scheduling-free resource reconfiguration strategy may include the following steps:

1) when the usage information indicates that the number of the user terminals allocated with the specified resource block is increased to be above a second threshold value, determining the scheduling-free resource reconfiguration strategy to be that m resource blocks are increased on the basis of the scheduling-free resource, wherein m is larger than or equal to 1.

2) When the usage information indicates that the number of the user terminals allocated with the specified resource block is reduced below a third threshold, determining that the scheduling-free resource reconfiguration strategy is to reduce p resource blocks including the specified resource block on the basis of the scheduling-free resource, wherein n > p is greater than or equal to 1.

When the number of the user terminals which are allocated the same resource block as the non-scheduling resource is increased, the probability that the resource block is selected for data transmission is increased, so that the probability that the data transmitted by the resource block collide is increased, and in order to control the probability that the data transmitted by the resource block collide, when the number of the user terminals which are allocated the resource block as the non-scheduling resource is increased to be more than a second threshold value, the base station adds at least one resource block for each user terminal which is allocated the resource block on the basis of the originally allocated non-scheduling resource.

Correspondingly, when the number of the user terminals allocated with the resource block as the scheduling-free resource is reduced to be below the third threshold, the probability that the resource block is selected for data transmission is relatively low, and at this time, the base station can reduce at least one resource block including the resource block for each user terminal allocated with the resource block on the basis of the originally allocated scheduling-free resource, so that the scheduling-free resource with low utilization rate is released, and the utilization efficiency of the resource is improved. For example, when the base station increases or decreases resource blocks serving as scheduling-free resources for the user terminal, the resource blocks may be increased or decreased with a single resource block as the lowest granularity, or with a resource block group including a plurality of resource blocks as the lowest granularity; when the granularity is increased or decreased by taking a single resource block as the lowest granularity, after detecting that the number of the user terminals which are allocated with one resource block as the scheduling-free resource is reduced to be below a third threshold value, the base station removes the resource block from the scheduling-free resources of all the user terminals which are allocated with the resource block; when the resource block group comprising a plurality of resource blocks is taken as the lowest granularity for increasing or reducing, after detecting that the number of the user terminals which are allocated with one resource block as the scheduling-free resource is reduced to be below a third threshold value, the base station removes the resource block group where the resource block is positioned from the scheduling-free resources of all the user terminals which are allocated with the resource block group.

3) When the usage information indicates that the total amount of data transmitted to the base station through the designated resource block in unit time is greater than a fourth threshold, determining that the scheduling-free resource reconfiguration strategy is to increase q resource blocks on the basis of the scheduling-free resource, wherein q is greater than or equal to 1.

4) When the usage information indicates that the total amount of data transmitted to the base station through the specified resource block in unit time is smaller than a fifth threshold value, determining that the scheduling-free resource reconfiguration strategy is to reduce i resource blocks including the specified resource block on the basis of the scheduling-free resource, wherein n is larger than i and is larger than or equal to 1.

When the total amount of data transmitted to the base station by a certain resource block in a unit time is large, it indicates that the number of user terminals performing data transmission by the resource block in the unit time is large, and the probability of data collision occurring by the resource block is increased, at this time, the base station may add at least one resource block to each user terminal allocated with the resource block based on the originally allocated scheduling-free resource.

Correspondingly, when the total amount of data transmitted to the base station through a certain resource block in a unit time is small, it indicates that the number of user terminals performing data transmission through the resource block in the unit time is small, and at this time, the base station may reduce at least one resource block including the resource block for each user terminal allocated with the resource block based on the originally allocated scheduling-free resource.

5) And when the use information indicates that the number of times of the data transmitted by the appointed resource block in unit time is detected to be larger than a sixth threshold value, determining the scheduling-free resource reconfiguration strategy as increasing j resource blocks on the basis of the scheduling-free resources, wherein j is larger than or equal to 1.

Therefore, when the number of times of data collision occurring in the unit time through a certain resource block is large, the base station can add at least one resource block to each user terminal allocated with the resource block on the basis of the originally allocated scheduling-free resource.

Step 410, the base station sends a message containing the scheduling free resource reconfiguration policy to the ue.

Step 411, the ue reconfigures the non-scheduled resource according to the non-scheduled resource reconfiguration policy.

The user terminal reconfigures the scheduling-free resource according to the scheduling-free resource reconfiguration strategy sent by the base station, and selects one or more resource blocks from the reconfigured scheduling-free resource to send data when subsequently sending data until receiving the scheduling-free resource reconfiguration strategy next time.

In the data transmission method provided by the embodiment of the present invention, when the base station reconfigures the scheduling-free resource of the user terminal, the scheduling-free resource reconfiguration policy determined by the base station is used to increase or decrease resource blocks in the scheduling-free resource allocated to the user terminal, so that when the scheduling-free resource reconfiguration policy is missed or misdetected by the user terminal, data sent by the user terminal through the original scheduling-free resource is still identified by the base station with a certain probability, thereby improving the robustness of data transmission.

Referring to fig. 5, a block diagram of a base station according to an embodiment of the present invention is shown. The base station may be implemented as the base station 110 of the implementation environment shown in fig. 1. The base station may include:

a resource allocation module 501, configured to allocate scheduling-free resources to a user terminal;

a sending module 502, configured to send a resource configuration message used for indicating the scheduling-free resource to the user terminal, where the scheduling-free resource is a resource used by the user terminal to transmit data without being scheduled by the base station, and the scheduling-free resource includes n resource blocks, where n is greater than or equal to 1;

a sequence negotiation module 503, configured to negotiate with the ue to generate an identity sequence of the ue;

a sequence extraction module 504, configured to, when data carried by the specified resource block is detected, extract an identity identification sequence from the data, where the specified resource block is one of the n resource blocks;

a matching module 505, configured to calculate a matching value between the extracted identity recognition sequence and the identity sequence;

a detection module 506, configured to detect whether the matching value is greater than a first threshold;

a determining module 507, configured to determine the data as the data sent by the user terminal if the detection result of the detecting module 506 is that the matching value is greater than the first threshold.

Optionally, the base station further includes:

a policy determining module 508, configured to determine a scheduling-free resource reconfiguration policy according to the usage information of the specified resource block, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal;

the sending module 502 is further configured to send a message including the scheduling-free resource reconfiguration policy to the ue.

Optionally, the policy determination module 508 is specifically configured to

Optionally, the sequence negotiation module 503 is specifically configured to

alternatively, the first and second electrodes may be,

In summary, the base station provided in the embodiment of the present invention allocates a scheduling-free resource to the user terminal, and negotiates an identity sequence with the user terminal, when the user terminal subsequently sends data, the scheduling-free resource may be directly used to send data including the identity sequence, and when the base station detects the data carried by the specified resource block, the base station identifies the user terminal sending the data according to the identity sequence in the data, and the data transmission process does not require the base station to perform a resource scheduling signaling, so that a large amount of signaling interaction is reduced, and delay in data transmission between the base station and the user terminal is effectively reduced.

Secondly, when the base station provided by the embodiment of the present invention reconfigures the scheduling-free resource of the user terminal, the scheduling-free resource reconfiguration policy determined by the base station is used to increase or decrease resource blocks in the scheduling-free resource allocated to the user terminal, so that when the scheduling-free resource reconfiguration policy is missed or misdetected by the user terminal, data sent by the user terminal through the original scheduling-free resource is still identified by the base station with a certain probability, thereby improving the robustness of data transmission.

Referring to fig. 6, a block diagram of a user terminal according to an embodiment of the present invention is shown. The user terminal may be implemented as the user terminal 120 of the implementation environment shown in fig. 1. The user terminal may include:

a receiving module 601, configured to receive a resource configuration message sent by a base station;

a configuration module 602, configured to configure a scheduling-free resource according to the resource configuration message, where the scheduling-free resource is a resource used by the ue to transmit data without being scheduled by the base station, and the scheduling-free resource includes n resource blocks, where n is greater than or equal to 1;

a sequence negotiation module 603, configured to negotiate, by the ue and the base station, to generate an identity sequence of the ue;

a selecting module 604, configured to select one resource block from the n resource blocks as a designated resource block;

a sending module 605, configured to send data including the identity sequence to the base station through the designated resource block.

Optionally, the base station extracts an identity recognition sequence from the data, calculates a matching value between the extracted identity recognition sequence and the identity sequence, and determines the data as the data sent by the user terminal when it is detected that the matching value is greater than a first threshold.

Optionally, the receiving module 601 is further configured to receive a message that is sent by the base station and includes a scheduling-free resource reconfiguration policy, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal;

the configuring module 602 is further configured to reconfigure the scheduling-free resource according to the scheduling-free resource reconfiguration policy.

Optionally, the selecting module 604 is specifically configured to randomly select one resource block from the n resource blocks as the designated resource block.

Optionally, the sequence negotiation module 603 is specifically configured to

alternatively, the first and second electrodes may be,

In summary, the user terminal provided in the embodiment of the present invention receives the resource configuration information sent by the base station to configure the scheduling-free resource, and negotiates with the base station for an identity sequence, when subsequently sending data, the scheduling-free resource may be directly used to send data including the identity sequence, and when detecting the data carried by the specified resource block, the base station identifies the user terminal sending the data according to the identity sequence in the data, and the data transmission process does not require the base station to perform a resource scheduling signaling, so that a large amount of signaling interactions are reduced, and the delay of data transmission between the base station and the user terminal is effectively reduced.

In each of the modules shown in fig. 5 and 6, the steps performed by the receiving module may be performed by the receiver under the control of the processor, the steps performed by the transmitting module may be performed by the transmitter under the control of the processor, and the steps performed by each of the other modules may be performed independently by the processor. Further, please refer to fig. 7, which illustrates a block diagram of a network device according to an embodiment of the present invention. The network device 700 may be a base station 110 or a user terminal 120 in the network environment shown in fig. 1 described above. The network device may include: a bus 701, and a processor 702, a memory 703, a transmitter 704, and a receiver 705 connected to the bus. Wherein the memory 703 is configured to store a number of instructions configured to be executed by the processor 702;

on one hand, when the network device 700 is implemented as the base station 110 in the network environment shown in fig. 1, the processor 702 is configured to allocate a scheduling-free resource to a user terminal, and control the transmitter 704 to send a resource configuration message indicating the scheduling-free resource to the user terminal, where the scheduling-free resource is a resource used by the user terminal to transmit data without being scheduled by the base station, the scheduling-free resource includes n resource blocks, and n is greater than or equal to 1;

the processor 702 is configured to control the transmitter 704 and the receiver 705 to negotiate with the user terminal to generate an identity sequence of the user terminal;

the processor 702 is configured to, when data carried by the specified resource block is detected, extract an identity identification sequence from the data, where the specified resource block is one of the n resource blocks;

the processor 702 is configured to calculate a matching value between the extracted identification sequence and the identification sequence, and detect whether the matching value is greater than a first threshold;

the processor 702 is configured to determine the data as the data sent by the ue if the detection result indicates that the matching value is greater than the first threshold.

Optionally, the processor 702 is further configured to determine a scheduling-free resource reconfiguration policy according to the usage information of the specified resource block, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal;

the processor 702 is further configured to control the transmitter 704 to send a message containing the scheduling-free resource reconfiguration policy to the user terminal.

Optionally, when determining a scheduling-free resource reconfiguration policy according to the usage information of the specified resource block, the processor 702 is specifically configured to

Optionally, the processor 702 is specifically configured to, when negotiating with the user terminal to generate the identity sequence of the user terminal, perform a negotiation with the user terminal to generate an identity sequence of the user terminal

alternatively, the first and second electrodes may be,

In summary, the network device provided in the embodiments of the present invention allocates the scheduling-free resource to the user terminal when the network device is implemented as the base station, and negotiates with the user terminal for the identity sequence, when the user terminal subsequently sends data, the data including the identity sequence may be sent by directly using the scheduling-free resource, and the network device identifies the user terminal sending the data according to the identity sequence in the received data, and the data transmission process does not require the base station to perform a resource scheduling signaling, so that a large amount of signaling interaction is reduced, and delay in data transmission between the network device and the user terminal is effectively reduced.

Secondly, when the network device provided in the embodiment of the present invention is implemented as a base station, and when the scheduling-free resource of the user terminal is reconfigured, the scheduling-free resource reconfiguration policy determined by the network device is used to increase or decrease resource blocks in the scheduling-free resource allocated to the user terminal, so that when the scheduling-free resource reconfiguration policy is missed or misdetected by the user terminal, data sent by the user terminal through the original scheduling-free resource is still identified by the network device with a certain probability, thereby improving the robustness of data transmission.

On the other hand, when the network device 700 is implemented as the ue 120 in the network environment shown in fig. 1, the processor 702 is configured to control the receiver 705 to receive a resource configuration message sent by a base station, and configure a scheduling-free resource according to the resource configuration message, where the scheduling-free resource is a resource used by the ue to transmit data without scheduling by the base station, and the scheduling-free resource includes n resource blocks, where n is greater than or equal to 1;

the processor 702 is configured to control the transmitter 704 and the receiver 705 to negotiate with the base station to generate an identity sequence of the user terminal;

the processor 702 is configured to select one resource block from the n resource blocks as a designated resource block, and control the transmitter 704 to transmit data including the identity sequence to the base station through the designated resource block.

Optionally, the processor 702 is further configured to control the receiver 705 to receive a message that is sent by the base station and contains a scheduling-free resource reconfiguration policy, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal;

the processor 702 is further configured to reconfigure the scheduling-free resource according to the scheduling-free resource reconfiguration policy.

Optionally, when one resource block is selected from the n resource blocks as a designated resource block, the processor 702 is specifically configured to randomly select one resource block from the n resource blocks as the designated resource block.

Optionally, the processor 702 is specifically configured to, when negotiating with the base station to generate the identity sequence of the user equipment, perform a negotiation with the base station to generate the identity sequence of the user equipment

alternatively, the first and second electrodes may be,

In summary, when the network device provided in the embodiment of the present invention is implemented as a user terminal, the network device receives resource configuration information sent by a base station to configure a scheduling-free resource, and negotiates with the base station for an identity sequence, when data is sent subsequently, the scheduling-free resource may be directly used to send data including the identity sequence, and when the base station detects the data carried by the specified resource block, the network device that sends the data is identified according to the identity sequence in the data.

It should be noted that: in the foregoing embodiment, when performing data transmission, the base station and the user terminal provided in the foregoing embodiment are only illustrated by dividing the functional modules, and in practical applications, the functions may be allocated by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the base station and the user terminal provided in the above embodiments belong to the same concept as the data transmission method embodiment, and specific implementation processes thereof are described in the method embodiment and are not described herein again.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A base station, characterized in that the base station comprises:

a sequence extraction module, configured to extract an identity identification sequence from data when detecting data carried by a specified resource block, where the specified resource block is one of the n resource blocks;

2. The base station of claim 1, wherein the base station further comprises:

3. Base station according to claim 2, characterized in that said policy determination module is specifically adapted to determine the policy of the mobile station

4. Base station according to any of claims 1 to 3, wherein said sequence negotiation module is specifically configured to perform

alternatively, the first and second electrodes may be,

5. A user terminal, characterized in that the user terminal comprises:

a sending module, configured to send data including the identity sequence to the base station through the designated resource block;

and the base station extracts an identity recognition sequence from the data, calculates a matching value between the extracted identity recognition sequence and the identity sequence, and determines the data as the data sent by the user terminal when detecting that the matching value is greater than a first threshold value.

6. The user terminal of claim 5,

the receiving module is further configured to receive a message that is sent by the base station and contains a scheduling-free resource reconfiguration policy, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal;

7. The UE of claim 5, wherein the selecting module is specifically configured to randomly select one resource block from the n resource blocks as the designated resource block.

8. The user terminal according to any of claims 5 to 7, wherein the sequence negotiation module is specifically configured to perform

alternatively, the first and second electrodes may be,

9. A base station, characterized in that the base station comprises: a processor, a transmitter, and a receiver;

the processor is configured to extract an identity recognition sequence from data when the data carried by a specified resource block is detected, where the specified resource block is one of the n resource blocks;

10. The base station of claim 9, wherein the processor is further configured to determine a scheduling-free resource reconfiguration policy according to the usage information of the specified resource blocks, and the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in scheduling-free resources allocated to the user terminal;

11. The base station according to claim 10, wherein the processor is specifically configured to determine a scheduling-free resource reconfiguration policy based on the usage information of the specified resource blocks

12. Base station according to any of claims 9 to 11, wherein the processor is specifically configured to generate the identity sequence of the user terminal when negotiating with the user terminal for generating the identity sequence of the user terminal

alternatively, the first and second electrodes may be,

13. A user terminal, characterized in that the user terminal comprises: a processor, a transmitter, and a receiver;

the processor is configured to select one resource block from the n resource blocks as a designated resource block, and control the transmitter to transmit data including the identity sequence to the base station through the designated resource block;

14. The ue of claim 13, wherein the processor is further configured to control the receiver to receive a message sent by the base station and containing a scheduling-free resource reconfiguration policy, where the scheduling-free resource reconfiguration policy is used to increase or decrease resource blocks in a scheduling-free resource allocated to the ue;

15. The user terminal according to claim 13, wherein the processor, when selecting one resource block from the n resource blocks as the designated resource block, is specifically configured to randomly select one resource block from the n resource blocks as the designated resource block.

16. The user terminal according to any of claims 13 to 15, wherein the processor is specifically configured to generate the identity sequence of the user terminal when negotiating with the base station

alternatively, the first and second electrodes may be,

17. A method of data transmission, the method comprising:

when the base station detects data carried by a specified resource block, extracting an identity recognition sequence from the data, wherein the specified resource block is one of the n resource blocks;

18. The method of claim 17, further comprising:

19. The method of claim 18, wherein the base station determines a scheduling-free resource reconfiguration policy according to the usage information of the specified resource blocks, and the scheduling-free resource reconfiguration policy is used for increasing or decreasing resource blocks in scheduling-free resources allocated to the user terminal, and the method comprises:

20. The method according to any of claims 17 to 19, wherein the base station negotiating with the user terminal to generate the identity sequence of the user terminal comprises:

alternatively, the first and second electrodes may be,

21. A method of data transmission, the method comprising:

the user terminal selects one resource block from the n resource blocks as a designated resource block, and sends data containing the identity sequence to the base station through the designated resource block;

the method further comprises the following steps:

22. The method of claim 21, further comprising:

23. The method of claim 21, wherein the selecting, by the ue, one resource block from the n resource blocks as a designated resource block comprises:

24. The method according to any of claims 21 to 23, wherein the negotiating, by the ue and the base station, the generation of the identity sequence of the ue comprises:

alternatively, the first and second electrodes may be,