WO2017036297A1

WO2017036297A1 - Competition based resource sharing method, network element and system

Info

Publication number: WO2017036297A1
Application number: PCT/CN2016/094967
Authority: WO
Inventors: 刘星; 苗婷; 毕峰; 谢峰; 郁光辉
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-09-02
Filing date: 2016-08-12
Publication date: 2017-03-09
Also published as: CN106488565A; CN106488565B

Abstract

A competition based resource sharing method, network element and system, which relate to a long-term evolution advanced system. The method, applied to communication stations, comprises: sending competition sharing configuration information to all terminals of a first type satisfying a pre-set condition, wherein the competition sharing configuration information is used for instructing all the terminals of the first type to compete for a time-domain and/or frequency-domain resource on a competition sharing domain; and receiving uplink data sent by the terminals of the first type which obtain the time-domain and/or frequency-domain resource by means of competition. An adjacent communication station is used to configure the same time-frequency resource on the competition sharing domain, and a terminal satisfying a certain pre-set condition is scheduled to the competition sharing domain.

Description

Competition-based resource sharing method, network element and system

Technical field

This document relates to, but is not limited to, the Long Term Evolution Advanced System (LTE-Advanced), and specifically relates to a contention-based resource sharing method, a network element and a system.

Background technique

With the continuous advancement of radio technology, a variety of radio services have emerged. On the one hand, the spectrum resources supported by the radio service are limited. In the face of increasing demand for bandwidth, the spectrum resources show extremely tight conditions. On the other hand, in the traditional fixed spectrum allocation mode, the utilization of spectrum resources Not too high. In a sense, this spectrum allocation system that is fixedly assigned to the authorization system creates a situation in which the spectrum resources are extremely tight. Cognitive radio technology breaks the traditional fixed spectrum allocation system, dynamically allocates spectrum between systems, and improves the efficiency of spectrum utilization. Typically, as people's daily communication needs continue to improve, they are not satisfied with simple voice data communication. The proportion of video streaming services in people's communication life is increasing, which requires greater bandwidth as a support, international mobile phones. The (IMT, International Mobile Telecom) system shows unprecedented spectrum tensions.

Spectrum dynamics configuration is a potential technical feature of future networks due to the fact that in future futures, cell sizes will move toward smaller levels due to spectrum efficiency and possible expansion to higher frequency bands. The number of terminals in a small area becomes less, which means that the bursting of cell services is enhanced, the cell-level load is no longer as stable as a traditional network, and the dynamics of resource requirements are improved. This is reflected in: 1. Dynamically increasing or decreasing the spectrum outside the system bandwidth, that is, the use of unlicensed spectrum; 2. Within the system bandwidth, dynamic scheduling.

Due to the improvement of resource allocation dynamics, the interference problem in the case of multiplexing the same spectrum between cells is more complicated. This also puts higher requirements on the interference coordination technology between adjacent cells. The relatively static interference in the traditional mode. The coordination method will not meet the demand. There is often a problem that the interference coordination process cannot keep up with the change of the interference state, which makes the resource allocation efficiency lower, and the overall throughput of the system is affected. To a greater impact.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiments of the present invention provide a contention-based resource sharing method, a network element, and a system, which can enable adjacent communication stations to compete for uplink transmitters on time-frequency resources.

The technical solution adopted by the embodiment of the present invention is as follows:

A contention-based resource sharing method applied to a communication site, including:

And transmitting, by the first-type terminal, all the first-type terminals to compete for time-domain and/or frequency-domain resources on the contention-sharing domain;

And receiving uplink data sent by the first type of terminal that obtains the time domain and/or the frequency domain resource in a competitive manner.

Optionally, before the sending the contention sharing configuration information to all the first type terminals that meet the preset condition, the method further includes:

Determining a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth; and/or,

Determining a first type of terminal that meets a predetermined condition; and/or,

Determining the contention sharing configuration information.

Optionally, before receiving the uplink data sent by the first type of terminal that obtains the time domain and/or the frequency domain resource in a contentive manner, the method further includes:

For all the second type terminals that do not meet the preset condition, the second type terminal is restricted to send uplink data on the contention shared domain.

Configuring time domain and/or frequency domain resource occupancy restriction information of all the first type terminals on the contention shared domain.

Optionally, determining a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth includes:

Receiving decision information sent by an upper management node or another communication station;

Determining, according to the decision information, a contention domain that satisfies time domain and/or frequency domain requirements within a system bandwidth;

Or negotiating with one or more communication sites within a first threshold range from the communication site;

According to the negotiation result, the contention domain that satisfies the time domain and/or frequency domain requirements within the system bandwidth is determined.

Determining that the same time domain and/or frequency domain resource from the one or more communication sites and the communication site within the first threshold range of the communication site is a contention shared domain.

Optionally, determining the first type of terminal that meets the preset condition includes: when the uplink receiving performance statistics result of the terminal, and/or the channel quality measurement result of the terminal meets the current network state preset condition of the communication station, determining the location The terminal is a first type of terminal.

Optionally, determining the contention sharing configuration information includes:

And determining, according to the channel quality indication CQI information sent by the first type of terminal, the contention sharing configuration information.

Optionally, the contention sharing configuration information includes one or more of the following:

Competition mode, maximum occupied duration, maximum competition window length, minimum contention window length, interframe spacing, frequency domain contention granularity, time domain contention granularity, time domain and/or frequency domain location of transmission opportunity starting point, modulation and coding strategy MCS level restriction, transmission mode TM limitation, uplink resource allocation type restriction, and uplink data transmission mode indicate domain configuration information.

Optionally, receiving uplink data sent by the first type of terminal that obtains the resource by using the contention method includes:

Receiving an uplink data transmission mode indication field in a time domain and/or a frequency domain location corresponding to a start point of each transmission opportunity in the contention sharing domain;

Demodulating the uplink data transmission mode indication field by using a first transmission mode set in the uplink data transmission mode indication domain configuration information;

Obtaining a second transmission mode used in the setting of the uplink data transmission mode indication field;

Demodulating uplink data sent by the first type of terminal by using a second transmission manner obtained by demodulation;

Or, according to the MCS level and/or the transmission mode and/or the uplink resource classification type defined by the uplink data transmission of the first type of terminal, the time domain and/or frequency corresponding to each transmission opportunity starting point in the contention sharing domain The domain location receives and demodulates uplink data sent by the first type of terminal.

Optionally, the method further includes:

Determining whether to update the contention sharing configuration of the first type of terminal according to the channel quality indication CQI information sent by the first type of terminal, and when determining to update the contention sharing configuration of the first type of terminal, to the first type of terminal Send updated contention configuration information.

The embodiment of the invention further provides a content-based resource sharing method, which is applied to the first type of terminal, and includes:

Receiving, by the communication station, the contention and configuration information that is used by the communication station to indicate that the first type of terminal competes for the time domain and/or the frequency domain resource on the contention sharing domain;

Preempting time domain and/or frequency domain resources on the contention sharing domain in a competitive manner according to the contention sharing configuration information;

When the time domain and/or the frequency domain resource on the contention domain is obtained, the uplink data is sent on the obtained time domain and/or frequency domain resource according to the contention sharing configuration information.

Optionally, before receiving the contention sharing configuration information sent by the communication station, the method further includes:

Channel quality indication CQI information is sent to the communication station.

Optionally, after preempting the resources on the contention sharing domain in a contentive manner according to the contention sharing configuration information, the method further includes:

And determining uplink transmission resources according to resource occupation restriction information on the contention sharing domain configured by the communication station.

Optionally, sending the uplink data on the obtained resource according to the contention sharing configuration information includes:

Transmitting the uplink data transmission mode indication field according to the first transmission mode set in the uplink data transmission mode indication domain configuration information;

And transmitting, by using the second transmission mode that is set in the uplink data transmission mode indication field, the uplink data by using the uplink data transmission mode indication field.

Optionally, the method further includes: the first type of terminal performs CQI feedback by using the manner of the communication station configuration and/or the time-frequency resource; or the first type of terminal competes for the uplink transmitter in the contention-competitive domain. Perform CQI feedback.

The embodiment of the present invention further provides a contention-based resource sharing device, which is disposed at a communication site, and includes:

a configuration module, configured to send contention sharing configuration information to all the first type terminals that meet the preset condition, where the contention sharing configuration information is used to indicate that all the first type terminals compete for time domain and/or frequency on the contention sharing domain. Domain resource

And, the communication module is configured to receive uplink data sent by the first type of terminal that obtains the time domain and/or the frequency domain resource in a competitive manner.

Optionally, the device further includes:

a first initialization module configured to determine a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth; and/or,

a second initialization module, configured to determine a first type of terminal that meets a preset condition; and/or,

And a third initialization module, configured to determine the contention sharing configuration information.

Optionally, the device further includes:

a first limiting module, configured to limit, for all second type terminals that do not meet the preset condition, the second type of terminal to send uplink data on the contention sharing domain; and/or

The second restriction module is configured to configure time domain and/or frequency domain resource occupation restriction information of all the first type terminals on the contention shared domain.

Optionally, the first initialization module includes:

a decision unit, configured to receive decision information sent by an upper management node or another communication station; Determining, according to the decision information, a contention domain that satisfies time domain and/or frequency domain requirements within a system bandwidth;

And/or a negotiating unit, configured to negotiate with one or more communication sites within a first threshold range of the communication site; and determine, according to the negotiation result, a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth .

Optionally, the first initialization module is configured to implement a contention domain that satisfies time domain and/or frequency domain requirements within a system bandwidth by:

Optionally, the second initialization module is configured to determine, by using the following manner, that the first type of terminal meets the preset condition:

When the uplink receiving performance statistics result of the terminal, and/or the channel quality measurement result of the terminal meets the current network state preset condition of the communication station, the terminal is determined to be the first type terminal.

Optionally, the third initialization module is configured to determine the contention sharing configuration information by determining the contention sharing configuration information according to the channel quality indication CQI information sent by the first type terminal.

Optionally, the communication module includes:

The indication domain unit is configured to receive an uplink data transmission mode indication domain in a time domain and/or a frequency domain location corresponding to each transmission opportunity starting point in the contention sharing domain;

The first demodulation unit is configured to demodulate the uplink data transmission mode indication field by using a first transmission mode set in the uplink data transmission mode indication domain configuration information;

a determining unit, configured to obtain a second transmission mode used in the setting of the uplink data transmission mode indication field;

a second demodulation unit, configured to demodulate uplink data sent by the first type of terminal by using a second transmission manner obtained by demodulation;

Alternatively, the communication module is configured to receive uplink data sent by a first type of terminal that obtains resources through a contention manner by: MCS level and/or transmission defined according to uplink data transmission to the first type of terminal. Mode and/or uplink resource classification type, receiving and demodulating the first type of terminal in a time domain and/or a frequency domain location corresponding to each transmission opportunity starting point in the contention sharing domain The uplink data sent.

Optionally, the device further includes an update module, configured to determine, according to the channel quality indication CQI information sent by the first type of terminal, whether to update a contention sharing configuration of the first type terminal, when determining to update the first class When the terminal is in a contention sharing configuration, the updated contention configuration information is sent to the first type terminal.

The embodiment of the invention further provides a contention-based resource sharing device, which is disposed in the first type of terminal, and includes:

a receiving module, configured to receive contention sharing configuration information sent by the communication station, where the contention sharing configuration information is used to indicate that the first type terminal competes for time domain and/or frequency domain resources on the contention sharing domain;

a competition module, configured to preempt the time domain and/or the frequency domain resource on the contention shared domain in a competitive manner according to the contention sharing configuration information;

And a sending module, configured to send uplink data on the obtained time domain and/or frequency domain resource according to the contention sharing configuration information when obtaining the time domain and/or the frequency domain resource on the contention sharing domain.

Optionally, the sending module is further configured to send channel quality indication CQI information to the communication station.

Optionally, the contention module is further configured to determine an uplink transmission resource according to resource occupation restriction information on the contention shared domain configured by the communication station.

Optionally, the sending module includes:

The first transmission unit is configured to send the uplink data transmission mode indication field according to the first transmission mode set in the uplink data transmission mode indication domain configuration information;

The second transmission unit is configured to send the uplink data by using the second transmission mode set in the uplink data transmission mode indication field by the uplink data transmission mode indication field.

Optionally, the sending module is further configured to adopt the manner in which the communication station is configured, and/or the time-frequency resource performs CQI feedback; or, the competing uplink device in the contention sharing domain performs CQI feedback.

The embodiment of the invention further provides a contention-based resource sharing system, the above-mentioned communication station and the first type of terminal.

Compared with the related art, the embodiment of the present invention has the following beneficial effects:

The contention-based resource sharing method, the network element, and the system provided by the embodiments of the present invention use the adjacent communication stations to set the same time-frequency resource to the contention-sharing domain, and to schedule the terminal that meets certain preset conditions to the contention-shared domain. The terminal configured to the contention competition domain competes with other terminals according to the competition mode configured by the communication station to obtain a specific uplink transmitter session on the competition sharing domain. In such a process, the criteria for scheduling to the terminals of the competition sharing domain are different, and the obtained competition effects are also different. For example, when the edge users are scheduled, the edge users in each cell can obtain an exclusive uplink transmitter through competition, thereby avoiding Uplink mutual interference between cells. The competition is based on the real-time measurement result of the terminal, which ensures that the interference coordination can be dynamically adjusted according to the actual interference state of the network, allows resource reuse in the interference-free state, and improves the efficiency of resource allocation.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a flowchart of a contention-based resource sharing method applied to a communication station according to an embodiment of the present invention;

2 is a flowchart of a contention-based resource sharing method applied to a first type of terminal according to an embodiment of the present invention;

3 is a schematic structural diagram of a contention-based resource sharing apparatus installed in a communication station according to an embodiment of the present invention;

4 is a schematic structural diagram of a contention-based resource sharing apparatus installed in a first type of terminal according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an application scenario of Embodiment 1 of the present invention; FIG.

6 is a schematic diagram of setting up a contention sharing domain according to Embodiment 1 of the present invention;

FIG. 7 is a schematic diagram of an application scenario of Embodiment 2 of the present invention; FIG.

8 is a schematic diagram of setting up a contention sharing domain according to Embodiment 2 of the present invention;

9 is a schematic diagram of a terminal competition result according to Embodiment 2 of the present invention;

FIG. 10 is a schematic diagram of an application scenario of Embodiment 3 of the present invention; FIG.

11 is a schematic diagram of setting up a contention sharing domain according to Embodiment 3 of the present invention;

FIG. 12 is a schematic diagram of an application scenario of Embodiment 4 of the present invention; FIG.

13 is a schematic diagram of setting up a contention sharing domain according to Embodiment 4 of the present invention;

FIG. 14 is a schematic diagram of an application scenario of Embodiment 5 of the present invention; FIG.

FIG. 15 is a schematic diagram of an application scenario of Embodiment 6 of the present invention.

Embodiments of the invention

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

As shown in FIG. 1 , an embodiment of the present invention provides a contention sharing method, which is applied to a communication station, and includes:

The contention competition domain includes a resource ensemble that is competed by the first type of terminal in the contention competition mode, and the first type of terminal competes to acquire an uplink transmitter conference by using a competition mode defined by the contention sharing configuration information.

Optionally, before sending the contention sharing configuration information to all the first type terminals that meet the preset condition, the method further includes:

Determining the contention sharing configuration information.

Determining a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth, including setting a part of the time domain and/or frequency domain resources in the uplink frequency band or the uplink subframe, optionally determining that the system bandwidth is satisfied The competing shared domains required by the domain and/or frequency domain include:

The competition sharing domain is determined by the upper management node of the communication station, and the final result is sent to the communication station, or determined by the communication station and the neighboring communication station, or by a communication station. Determine and send the final result to the other communication site.

One or more communication sites within a first threshold range of the communication station include communication sites that overlap or are adjacent to the communication site coverage area, a first threshold range and coverage and/or transmission of the communication site Power related.

Determining the contention domain that satisfies the time domain and/or frequency domain requirements within the system bandwidth includes:

Here, the communication station and the adjacent communication station set the same time domain and/or frequency domain resource as a contention shared domain.

Optionally, before receiving the uplink data sent by the first type terminal that obtains the time domain and/or the frequency domain resource in a competitive manner, the method further includes:

For all the second type terminals that do not meet the preset condition, restricting the second type of terminal to send uplink data on the contention sharing domain, or configuring all the first type terminals to be on the contention shared domain Domain and/or frequency domain resource occupancy limit information.

The communication station limits the uplink resource occupation of the second type of terminal, and avoids the uplink conflict with the first type of terminal in the competition sharing domain; wherein the second type of terminal refers to a terminal that does not meet the preset condition or does not support the competition sharing. Traditional terminal of the mode;

The communication station may further perform pre-configuration on the first type of terminal, where the resource is occupied. The restriction information is used to indicate to the first type of terminal a time-frequency resource that is restricted in use in the contention sharing domain. Determining, in advance, the restriction information of the resource occupation of the first type of terminal in the competition sharing domain, and determining the uplink transmission resource according to the pre-configured restriction information when the first type of terminal contends to the time-frequency resource in the competition sharing domain. To avoid upstream conflicts with the second type of terminal.

When the communication station performs the restricted pre-configuration on the first type of terminal, the time-frequency resource limited to use in the contention-competing domain is indicated.

Determining the first type of terminal that meets the preset conditions includes:

In the determining process of the first type of terminal, the communication station determines, according to the statistics of the uplink receiving performance, and/or the receiving of the channel channel quality measurement result, whether the terminal meets the determining criterion set according to the current network state, A terminal that satisfies a predetermined criterion is determined as a first type of terminal, and the channel quality measurement may be one or more of the following: Reference Signal Received Power (RSRP), Signal to Noise Ratio SINR (Signal to Interference) Plus Noise Ratio), Channel Quality Indicator (CQI).

Determining the contention sharing configuration information includes:

The competition sharing configuration information is a signal and/or a channel that is sent by the communication station to the first type of terminal, and is used to indicate to the first type of terminal at least one of the following information: entering a contention mode and a time sharing frequency of a competition sharing domain. And/or frequency domain resource ranges, and configuration parameters on the competing shared domain. The contention sharing configuration information includes one or more of the following:

Competition mode, maximum occupancy duration, maximum competition window length, minimum contention window length, interframe spacing, frequency domain contention granularity, time domain contention granularity, time domain and/or frequency domain location of transmission opportunity starting point, MCS (Modulation and Coding Scheme, modulation and coding strategy) level restriction, transmission mode TM restriction, uplink resource allocation type restriction, and uplink data transmission mode indicating domain configuration information.

The frequency domain contention granularity refers to a minimum frequency domain resource unit occupied by the terminal competition; the time domain contention granularity refers to a minimum time domain resource occupied by the terminal competition. That is, when the terminal successfully competes for the uplink transmitter In time, the terminal may occupy a bandwidth of a frequency domain contention granularity or an integer multiple of a frequency domain contention granularity, and a time length of the time domain contention granularity or the time domain contention granularity.

The time domain and/or frequency domain location of the transmission opportunity starting point refers to the time domain and/or frequency domain resource information corresponding to the starting point of all transmission opportunities on the shared contention domain, and is used to limit the transmission starting point of the uplink data of the terminal.

The MCS level restriction is used to limit the MCS level used by the terminal to send uplink data in the contention sharing domain, or the MCS level set; the transmission mode restriction is used to limit the transmission used by the terminal to send uplink data in the contention sharing domain. Mode, or, a collection of transport modes. The uplink resource allocation type restriction is used to limit an uplink resource allocation type of the terminal in the contention sharing domain.

The MCS level restriction, and/or the transmission mode restriction, and/or the uplink resource allocation type restriction may be determined by the communication station according to channel quality indication feedback of the first type of terminal.

The uplink data transmission mode indication domain configuration information is used to indicate the transmission mode (referred to as the first transmission mode) adopted by the uplink data transmission mode indication domain itself. The uplink data transmission mode indication field is sent together with the uplink data of the first type terminal, and is used by the first type terminal to indicate the transmission mode used by the uplink data to the communication station (referred to as a second transmission). The method includes: at least one of the following: an MCS level, a transmission mode, and a resource allocation type.

The uplink data sent by the first type terminal that receives the resources obtained through the contention method includes:

The method further includes:

Determining whether to update the first according to the channel quality indication CQI information sent by the first type of terminal A contention sharing configuration of a terminal, when it is determined that the contention sharing configuration of the first type terminal is updated, the updated contention configuration information is sent to the first type terminal.

The communication station attempts to demodulate the uplink in the time-frequency domain corresponding to the start point of each transmission opportunity in the contention-sharing domain according to the MCS level, the transmission mode, and the uplink resource classification type defined by the uplink data transmission of the first type of terminal. Data; or the communication station attempts to demodulate the uplink data transmission mode indication field in the time-frequency domain location corresponding to the start point of each transmission opportunity in the contention sharing domain according to the first transmission mode, and indicates the uplink data transmission mode indication that can be correctly demodulated The communication station may further acquire the second transmission mode, and the communication station further demodulates the uplink data of the first type terminal according to the second transmission manner.

As shown in FIG. 2, an embodiment of the present invention further provides a content-based resource sharing method, which is applied to a first type of terminal, including:

After preempting the resources on the contention sharing domain in a competitive manner according to the contention sharing configuration information, the method further includes:

The uplink transmission resource is determined according to the pre-configured restriction information to avoid uplink collision with the second type terminal, according to the pre-configured resource occupation restriction information, when the first type of terminal competes with the time-frequency resource in the competition sharing domain. The terminal of the second type refers to a terminal that does not meet the preset condition or a traditional terminal that does not support the contention sharing mode, and receives the resource occupation restriction information, and may be any time before the uplink data is sent, but may be at the time of preemption. Domain or / or frequency domain resources before or After the application of the resource occupation restriction information is, after the preemption, the first type of terminal competes with a time domain and/or frequency domain resource, wherein there are individual smaller granularity time domain and/or frequency domain resources ( For example, RB) is restricted. Therefore, the restricted RB is removed on the competing time domain and/or frequency domain resources, and the available uplink transmission resources are obtained.

The contention sharing configuration information includes one or more of the following:

Sending the uplink data on the obtained resource according to the contention sharing configuration information includes:

The method further includes that the first type of terminal performs CQI feedback by using the manner of the communication station configuration and/or the time-frequency resource; or the first type of terminal competes for the uplink transmitter in the contention-sharing domain to perform CQI feedback.

The first type of terminal competes with the uplink transmitter on the contention-sharing domain in a contention manner specified in the contention-sharing configuration message. When competing for the uplink transmitter, the MCS level restriction and transmission defined in the contention-sharing configuration message are transmitted. The mode restriction and the uplink resource classification type restriction are used to send uplink data to the communication station in the time-frequency resource corresponding to the competing uplink transmitter. The first type of terminal contends for the uplink transmitter on the contention sharing domain in a contention manner specified in the contention sharing configuration message, and sends uplink data according to the second transmission mode when competing to the uplink transmitter, and according to the first The transmission mode sends an uplink data transmission mode indication field, and indicates, by using an uplink data transmission mode, the second transmission mode used by the communication station to send uplink data.

As shown in FIG. 3, an embodiment of the present invention further provides a contention-based resource sharing device, which is disposed at a communication site, and includes:

The configuration module is configured to send a contention sharing configuration to all the first type terminals that meet the preset conditions. Information, the contention sharing configuration information is used to indicate that all the first type terminals compete for time domain and/or frequency domain resources on the contention sharing domain;

The device further includes:

a first limiting module, for all second type terminals that do not meet the preset condition, restricting the second type of terminal to send uplink data on the contention sharing domain; and/or

The first initialization module includes:

a decision unit, configured to receive the decision information sent by the upper management node or another communication station; and determine, according to the decision information, a contention domain that satisfies the time domain and/or the frequency domain requirement in the system bandwidth;

And/or, a negotiating unit, configured to negotiate with one or more communication sites within a first threshold range of the communication site; and determine, according to the negotiation result, a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth .

The first initialization module is configured to implement a contention domain that satisfies time domain and/or frequency domain requirements within a system bandwidth by:

The second initialization module is configured to implement the first type of terminal that determines that the preset condition is met by:

When the terminal receives the uplink performance statistics, and/or, the channel quality measurement result of the terminal is satisfied. When the current network state preset condition of the communication station is determined, the terminal is determined to be a first type terminal;

The third initialization module is configured to determine the contention sharing configuration information by determining the contention sharing configuration information according to the channel quality indication CQI information sent by the first type terminal.

The communication module includes:

Alternatively, the communication module is configured to: at each transmission opportunity starting point in the contention sharing domain, according to the MCS level and/or the transmission mode and/or the uplink resource classification type defined for the uplink data transmission of the first type of terminal. Corresponding to the time domain and/or the frequency domain location, the uplink data sent by the first type of terminal is received and demodulated.

The device further includes an update module, configured to determine, according to the channel quality indication CQI information sent by the first type of terminal, whether to update the contention sharing configuration of the first type terminal, when determining to update the contention of the first type terminal When the configuration is shared, the updated contention configuration information is sent to the first type of terminal.

As shown in FIG. 4, an embodiment of the present invention further provides a contention-based resource sharing device, which is configured in a first type of terminal, and includes:

The sending module is further configured to send channel quality indication CQI information to the communication station.

The contention module is further configured to determine an uplink transmission resource according to the resource occupation restriction information on the contention sharing domain configured by the communication station.

The sending module includes:

The sending module performs CQI feedback by using the manner of the communication station configuration, and/or time-frequency resources; or competing for the uplink transmitter in the contention sharing domain to perform CQI feedback.

The embodiment of the invention further provides a contention-based resource sharing system, including the foregoing communication station and the first type of terminal.

Example 1

As shown in FIG. 5, the macro-area terminal (MUE) interferes with the micro-region communication station (HeNB) in the heterogeneous network (both FDD (Frequency Division Duplexing) system scenarios). The MUE is located at the edge of the micro-area, the uplink transmission of the MUE may cause interference to the micro-area, the MUE competition sharing mode configuration process, and the process of the MUE competing to acquire the uplink transmission resource are described in detail below. This embodiment describes a heterogeneous network composed of an HeNB and an eNB as an example, and other forms of heterogeneous networks are applicable.

As shown in FIG. 6, the macro area base station eNB determines the contention sharing domain and sends it to the micro area base station HeNB. Optionally, the eNB can determine the setting according to the current load status and the number of terminals that need to be scheduled to the contention domain. The location and size of the time-frequency domain resources for the shared shared domain. In this embodiment, the eNB sets the subframes 1, 2, 6, and 7 of each radio frame of the uplink frequency band as a contention shared domain.

The eNB determines whether the MUE meets a predefined condition, and determines whether to The MUE is scheduled to the contention domain. The specific judgment process is as follows:

1. The decision criterion is set in advance. Optionally, the eNB may determine the potential interference of the MeNB according to the MUE, for example, the measurement result of the reference signal received power RSRP of the HeNB by using the MUE, and the criterion of the decision is: RSRP (HeNB)> A dBm (that is, the distance between the MUE and the HeNB is within a certain range, and the MUE uplink transmission has the possibility of interference to the HeNB. The specific distance can be controlled by setting different threshold A values. In this embodiment, A=10) is set. That is, when the MUE reports that the received power measurement value of the HeNB reference signal is higher than 10 dBm, it is considered that the MUE satisfies a predefined condition;

2. Configure the MUE measurement and receive the measurement result. Based on the previously set decision criterion, the measurement result of the MeNB reference signal received power is required to be obtained. Therefore, the MUE is configured to measure the reference signal received power of the HeNB, and the measurement report of the received MUE is: P=12 dBm, which exceeds the preset threshold. Meet the pre-defined conditions.

Therefore, it is determined to schedule this MUE to the contention shared domain.

The eNB sends a contention sharing configuration message to the MUE, where the contention sharing configuration message is used to indicate to the terminal that meets the predefined criteria to enter the contention sharing mode, to specify the time-frequency resource range of the contention sharing domain, and the configuration parameters on the contention sharing domain;

The contention competition mode means that the terminal that meets the predefined criteria is scheduled to be in a contention-sharing domain, and the terminal needs to obtain an uplink transmitter session on the contention-sharing domain in a competitive manner;

Time-frequency domain location information of the competition shared domain (subframes 1, 2, 6, and 7 of each radio frame of the uplink frequency band); configuration parameters on the contention-sharing domain, including the following information: the used competition algorithm (LBT, listen before talk) ), frequency domain contention granularity (the entire system bandwidth, for example 5MHz), time domain competition granularity 1ms, maximum competition window length 1ms, minimum competition window length 0.1ms.

The frequency domain contention granularity refers to the bandwidth that the terminal competes for. In this embodiment, the frequency domain contention granularity is defined as the entire system bandwidth, that is, when the MUE competes with the transmitter, the entire system will be occupied. The bandwidth transmits uplink data.

The time domain contention granularity refers to the time domain granularity that the terminal competes for, that is, the duration that the MUE can occupy when it reaches the transmitter, that is, 1 ms.

After receiving the contention sharing configuration message, the MUE enters the competition sharing according to the requirements of the configuration message. The mode, with the established competition algorithm (LBT), competes with the other UEs that are scheduled to compete in the shared domain on the contention domain.

When the MUE competes to a certain transmitter (such as frame 1 subframe 2), the full bandwidth is transmitted to the eNB on the frame 1 subframe 2. Optionally, when the uplink data is sent, the MUE carries its own identification information, so that the eNB receives the identification. The identification information may be a specific sequence that uniquely identifies the MUE, or a specific manner of data transmission.

The eNB monitors the uplink data on the time-frequency resources corresponding to all the competition sharing domains, and combines the identification information included in the uplink data to identify whether it is the data to be received by itself and from which terminal.

Example 2

As shown in Figure 7, in the scenario of heterogeneous networks (both TDD systems), there are two uplink interferences between the macro and micro: the macro area terminal (MUE) interferes with the micro-area base station (HeNB), and the micro-area base station (HeNB) The UE (hereinafter referred to as HUE) interferes with the macro base station eNB. The process of configuring the contention sharing mode for the MUE and the HUE, and the process of competing for the uplink transmission resources between the MUE and the HUE are described in detail below. This embodiment describes a heterogeneous network composed of an HeNB and an eNB as an example, and other forms of heterogeneous networks are applicable.

As shown in FIG. 8, the macro area base station eNB negotiates with the micro-area base station HeNB to determine a contention-shared domain. Optionally, the eNB and the HeNB exchange current load conditions, and the number of terminals that need to be scheduled to the contention-shared domain, and combine the information of both parties. Determine the location and size of the time-frequency domain resources that are set to compete for the shared domain. In this embodiment, a part of the uplink subframe of the TDD system is set as a contention-sharing domain, and the uplink and downlink of the system are configured as DSUUD, D is a downlink subframe, S is a special subframe, and U is an uplink subframe, and each is The subframes 2 and 7 of the radio frame are set to compete for the shared domain.

The HeNB and the eNB respectively determine that the subordinates meet the predefined conditional terminal. The specific judgment process is as follows:

1. The eNB determines whether the subordinate MUE1-3 meets the predefined conditions. The specific process is the same as that in Embodiment 1, and details are not described herein again. As a result of the judgment, MUE1 and MUE2 meet the pre-set decision criteria, and it is determined that the two MUEs are scheduled to the contention shared domain.

2. The HeNB determines whether the subordinates HUE1 and HUE2 meet the pre-defined conditions, and the HeNB configures the subordinate terminals to measure the reference signal received power to the HeNB and the eNB respectively, and sets the judgment criterion to be P(HeNB)<B dBm, and P(eNB)>C. At this time, it can be considered that the HUE that satisfies the above conditions is far away from the HeNB, and the corresponding transmission power is relatively large; and closer to the eNB, it is more likely to interfere with the eNB. Based on the foregoing criteria, the measurement configuration message is sent to the HUE, and the measurement result is reported, and the measurement result is compared with the judgment criterion, so that the HUE2 meets the preset decision criterion, and the HUE2 is determined to be scheduled to the contention shared domain.

Note: The communication station can also determine different UEs at different times, and schedule the UEs that meet the predefined conditions to the contention domain at any time.

The HeNB and the eNB respectively send a contention sharing configuration message to the UEs (MUE1, MUE2, and HUE2) that meet the predefined conditions, and the contention sharing configuration message is used to indicate to the terminal that meets the predefined criteria to enter the contention sharing mode, and to standardize the contention of the shared domain. Time-frequency resource range and configuration parameters on the competing shared domain;

Time-frequency domain location information of the competition shared domain (subframes 2, 7 of each radio frame); configuration parameters on the contention competition domain, including the following information: the used competition algorithm (LBT, listen before talk), the frequency domain competition granularity (The system bandwidth is divided into sub-bands, for example, for 10 MHz, divided into two sub-bands, each sub-band is 25 RBs), the maximum occupation time is 0.5 ms, the maximum contention window is 1 ms, and the minimum contention window is 0.1 ms.

The frequency domain contention granularity refers to the bandwidth that the terminal competes for. In this embodiment, the frequency domain contention granularity is defined as the frequency domain width of 25 RBs, that is, when the MUE is for the subband 1 and the subband. 2 Competing transmitters respectively, when the competition is successful, the uplink data of the sub-band that occupies the competition will be transmitted.

The maximum occupation time is 0.5ms, that is, the duration that the MUE can occupy when it reaches the transmitter, that is, 0.5ms.

After receiving the contention sharing configuration message, each UE enters the contention sharing mode according to the requirements of the configuration message, and the competition algorithm (LBT) is developed to compete with the transmitters in the competition sharing domain.

The competition result of each UE to frame0 and subframe2 is shown in FIG. UE in each Uplink data is sent to the respective base stations on the time-frequency resources that are competing. Optionally, when the uplink data is sent, the UE carries its own identification information, so that the eNB/HeNB receives the identification.

When the terminal sends the uplink data, the base station does not know which terminal has preempted which time-frequency resource. Therefore, the HeNB and the eNB monitor the uplink data on the time-frequency resources corresponding to all the competition-sharing domains, and combine the identification information included in the uplink data. Identifies whether it is the data that it wants to receive and which terminal it comes from.

Example 3

As shown in FIG. 10, in the isomorphic network scenario, there is uplink interference in the macro interval: that is, the uplink transmission of the macro area edge terminal (UE) potentially interferes with the reception of the neighboring cell base station eNB. The process of configuring the contention sharing mode of the eNB for the respective subordinate UEs and the process of competing for the uplink transmission resources between the UEs of each macro area are described in detail below. .

As shown in FIG. 11, the upper management node configures a contention sharing domain (shaded portion in the figure) for the communication station, and determines a part of the subband in the system bandwidth (for example, the system bandwidth is 20 MHz, and the subband range is 60th RB to 69). RB) resources as a shared resource for competition and configured for each eNB;

The upper management node may be an entity located on the network management side or an entity located on the core network side, or may be manually configured.

The eNB A, the eNB B, and the eNB C respectively schedule the respective edge UEs to the contention-sharing domain, and are configured as a contention-sharing mode, and specifically include the following UEs: UEA1, UEA2, UEB1, UEB2, UEC1, and UEC2.

Each eNB sends a contention sharing configuration message to the UEs that meet the predefined conditions, and the contention sharing configuration message is used to indicate to the terminal that meets the predefined criteria to enter the contention sharing mode. , standardizing the time-frequency resource range of the contention-sharing domain, and the configuration parameters on the contention-competitive domain;

Time-frequency domain location information of the competition shared domain: frequency domain: 60th RB to 69th RB; time domain: full time period (may not be included at this time, default full time period); configuration parameters on the competition shared domain, Includes the following information: the used algorithm (LBT, listen before talk). In this embodiment, the system has defaulted the specific configuration parameters under the competition algorithm. Therefore, in the configuration message, it is only necessary to specify which competition algorithm is used, and no specific configuration parameters are needed.

Each UE sends uplink data to its own base station on its own time-frequency resources. Optionally, before the uplink data is sent, the UE first sends the indication information of the contention success to the eNB, and carries the identity information of the UE, so that the eNB/HeNB receives the subsequent uplink data.

Each eNB monitors the contention success indication information on the contention sharing domain. When the indication information indicates that the uplink data is sent to itself, the eNB continues to receive the subsequent uplink data. When the indication information indicates that the uplink data is not sent to itself, the eNB quits the latter. receive.

Example 4

As shown in Figure 12, in the scenario of coexistence of different systems, the UMTS cell and the LTE cell are both FDD systems, overlapping coverage or adjacent. When the two systems share the spectrum, there is uplink interference between systems: that is, the terminal in the overlapping area is covered. The uplink transmission of (UE) potentially interferes with the reception of the different system base station eNB. The process of competing sharing mode configuration and the process of competing for acquiring uplink transmission resources between UEs in each system are described in detail below. The scenario in which the UMTS and the LTE coexist is taken as an example, and other spectrum sharing scenarios between different systems are applicable.

Both systems are FDD systems. The scheme is designed for uplink bandwidth. The bandwidth of the UMTS system participating in the competition sharing is 5MHz, the bandwidth of the LTE system is 10MHz, and the center frequency of the two systems is the same. The size of the two systems competing shared domains is determined according to the load status of the two cells. As shown in FIG. 13, it is determined that the shaded portion is set as the contention shared domain, and the frame structure of the LTE system is used to define the time-frequency domain range of the contention shared domain: the time domain is The second time slot of each subframe, the frequency domain is 5 MHz in the middle of the system bandwidth. For the UMTS system, the frequency domain range of the contention-sharing domain involves the entire system bandwidth, and the time domain needs to be synchronized with the LTE system, and the corresponding time-frequency domain resource is found to be set to the contention-competing domain.

The NodeB and the eNB respectively schedule the terminals that are likely to cause interference to the neighboring cells to the contention-sharing domain, and the terminals that may cause interference to the neighboring cells may be measured by the respective base stations according to the neighboring terminals. As a result, for example, when the terminal of the NodeB measures that the received power of the eNB exceeds a certain threshold, the terminal is considered to be within the coverage of the subordinate cell of the eNB or the coverage edge, and the uplink transmission of the terminal may interfere with the reception of the eNB.

The NodeB and the eNB respectively send a contention sharing configuration message to the terminal that the respective subordinates intend to schedule to the contention sharing domain, and the contention sharing configuration message is used to indicate to the terminal that meets the predefined criterion to enter the contention sharing mode, and to regulate the time-frequency resource of the contention sharing domain. Scope, and configuration parameters on the competing shared domain;

Time-frequency domain location information of the competition shared domain: The two systems allocate subordinate terminal configuration time-frequency domain resource locations corresponding to the competition sharing domains of the respective systems. The configuration parameters on the contention domain include the following information: CSMA/CA, Carrier Sensing Multi Access/Collision Avoidance. In this embodiment, the system has defaulted the specific configuration parameters under the competition algorithm. Therefore, in the configuration message, it is only necessary to specify which competition algorithm is used, and no specific configuration parameters are needed.

After receiving the contention sharing configuration message, each UE enters the contention sharing mode according to the requirements of the configuration message, and the competition algorithm is formulated to compete with the transmitters in the competition sharing domain.

Each eNB monitors the contention success indication information on the contention sharing domain, and continues to receive subsequent uplink data when the indication information indicates that the uplink data is sent to itself, and discards the subsequent reception when the indication information indicates that the uplink data is not sent to itself. .

It should be noted that, in the above embodiment, the setting of the contention domain may be dynamically performed, that is, the time-frequency domain resource location of the contention domain may be re-adjusted according to the current network state, and updated by the process of each embodiment. The contention of the shared shared domain is sent to the terminal that is scheduled to compete for the shared domain.

Example 5

As shown in FIG. 14, in the homogeneous network scenario, there is uplink interference in the macro interval: that is, the uplink transmission of the macro area edge terminal (UE) potentially interferes with the reception of the neighboring cell base stations eNB B and eNB C. The following describes in detail the configuration process in which the eNB A cancels the contention sharing mode for the UE when the UE moves to the cell center and is not a potential interference source in the neighboring cell.

The UE is a terminal that has been scheduled by the eNB A to the contention of the contending shared domain. The UE participates in the competition with other UEs in the contending shared domain, and also measures the RSRP of the serving base station eNB A. The measurement result shows that the UE has moved. To the center of the cell, that is, the white area, its uplink transmission will not cause potential interference to the neighboring areas eNB B and eNB C.

The eNB sends an indication message to the UE, instructs the UE to cancel the contention sharing mode, and restores the normal scheduling mode; the uplink transmission of the UE is restored to the normal scheduling mode of the LTE.

Similarly, in other scenarios, the communication station may also change according to the state of the terminal scheduled to the competition sharing domain, and whether the terminal continues to be scheduled on the contention shared domain, and may decide to change its working mode to the normal mode in due course.

Example 6

As shown in FIG. 15 , a homogeneous network application scenario corresponding to the embodiment of the present invention has uplink interference in a macro interval: that is, an uplink transmission of a macro edge terminal (UE) potentially interferes with reception of a neighboring cell base station eNB. The conflict avoidance process between the terminal and the legacy terminal in the contention sharing mode is described in detail below, and the compatibility with the legacy terminal is realized.

Similar to the third embodiment, the upper management node configures the contention competition sharing domain (as shown in FIG. 11); each base station determines that the respective edge users are scheduled to compete on the shared domain; and the terminal that enters the contention sharing mode is in the competition sharing. Competing for the respective transmitters in the domain;

The difference is that the traditional terminal UE2 exists under the eNB A. The traditional terminal cannot identify the content such as the contention of the shared shared domain. For example, if the traditional terminal does not have special processing, the uplink transmission of the UE2 may appear in the contention and the shared mode. The terminal has a conflict. In order to achieve the compatibility between the terminal and the legacy terminal in the contention sharing mode, the eNB A needs to limit the uplink resource of the legacy terminal UE2, that is, the uplink transmission of the UE2 is not scheduled to be within the contention domain, and is not within the contention domain. Allows traditional to do any upstream transmission. Thereby, the resource conflict between the UE2 and the contention sharing mode UE on the contention shared domain is avoided.

It is to be noted that, in this embodiment, the uplink resource occupation of the legacy terminal is restricted by the communication site, and the uplink conflict of the competition sharing mode terminal in the competition sharing domain is avoided, and finally the compatibility with the legacy terminal is achieved;

The content of the competing sharing mode terminal may be restricted and pre-configured by the communication site to implement compatibility with the legacy terminal. In this case, the pre-configuration information needs to be added to the contention-sharing configuration message for the terminal in the contention sharing mode. Indicates the time-frequency resources used in the restricted sharing domain. The time-frequency resources used by these restrictions are occupied by the uplink transmission of the legacy terminal. Therefore, the conflict avoidance between the uplink resources of the two is also realized, and the traditional terminal is compatible.

The UE is instructed by the eNB to enter the contention sharing mode by using the method in any of the foregoing embodiments. This embodiment describes in detail the process of determining and indicating the mode of sending the UE in the contention sharing domain.

In order for the eNB to correctly demodulate the uplink data of the UE on the contention sharing domain, the eNB indicates to the UE the following information in the contention sharing configuration message: the time-frequency domain location of the transmission opportunity starting point, the MCS level limitation, and the transmission mode (TM) restriction. , the uplink resource allocation type is limited.

The time-frequency domain location of the transmission opportunity starting point refers to the time-frequency domain resource information corresponding to the starting point of all transmission opportunities in the shared contention domain, and is used to limit the transmission starting point of the uplink data of the UE. It also facilitates the eNB to distinguish different transmission opportunities when detecting UE uplink data.

The MCS level restriction is used to limit the MCS level used by the terminal to send uplink data in the contention sharing domain, or the MCS level set (in this embodiment, the limitation is MCS10); the transmission mode restriction is used to limit the terminal to compete. The transmission mode used to transmit uplink data in the shared domain, or the transmission mode set (limited to TM1 in this embodiment). The uplink resource allocation type restriction is used to limit the uplink resource allocation type of the terminal in the contention sharing domain (in this embodiment, the type is limited to Type 0 and the number of RBs is 15).

The UE contends for the uplink transmission resource according to the specified competition algorithm. After the UE contends to the transmitter, the UE sends the uplink data on the contending time-frequency resource according to the indication of the foregoing sending mode, with the specified MCS level, transmission mode, and uplink resource allocation type. .

The eNB receives and tastes according to the corresponding MCS level, transmission mode, and uplink resource allocation type. Try to demodulate the upstream data within each transmission opportunity. Until the uplink data of the UE is successfully demodulated, the process of receiving the uplink data of the UE on the contention sharing domain is completed.

It is to be noted that the eNB may refer to the previous CQI feedback performed by the UE when defining the MCS level, the transmission mode, and the uplink resource allocation type of the UE uplink transmission. There are two possible ways for the UE to feed back CQI in the shared mode: 1. The first type of terminal has the same CQI feedback mode as the traditional terminal, and both need to avoid the time-frequency resources corresponding to the contention domain. It is also necessary to perform CQI feedback on the non-contention shared domain resource. 2. The CQI feedback of the first type of terminal also needs to be performed on the contention sharing domain, that is, the UE needs to compete for the time-frequency resource to feed back the CQI, and the content to be fed back is indicated by the eNB. The transmission mode is sent to the eNB on the time-frequency resources that are contending. In either case, after receiving the CQI feedback of the UE, the eNB determines the corresponding MCS level, transmission mode, and uplink resource allocation type, and indicates to the UE through the downlink channel or signal.

Example 8

The UE is instructed by the eNB to enter the contention sharing mode by using the method in any of the foregoing embodiments. This embodiment describes in detail another process of determining and indicating the mode of sending the UE in the contention sharing domain.

In the method used in this embodiment, the eNB does not limit the specific transmission mode of the uplink data of the UE, and the UE needs to indicate the transmission mode of the subsequent uplink data by using the content of the uplink data transmission mode indication field.

In order to correctly demodulate the uplink data transmission mode indication field of the UE on the contention-sharing domain, and then obtain the uplink data transmission mode of the UE, the eNB further indicates to the UE the following information in the contention sharing configuration message: the uplink data transmission mode. Indicates the configuration information for the domain.

The uplink data transmission mode indicates the configuration information of the domain, and is used by the eNB to indicate to the UE the transmission mode (referred to as the first transmission mode) adopted by the “uplink data transmission mode indication field” itself.

The uplink data transmission mode indication field is sent together with the uplink data of the first type terminal, and can be placed in a specific location, such as in front of or behind the uplink data, occupying a certain amount of bit resources. The sending manner includes: an MCS level, a transmission mode, and a resource allocation type.

In this embodiment, the uplink data transmission mode indication field is placed in front of the uplink data and occupies N bits. In this case, the eNB may perform the specified transmission mode at the time-frequency domain location of the transmission opportunity starting point. Demodulate the uplink data transmission mode indication field. Further read the uplink data transmission method contained therein.

In this embodiment, the UE contends for the uplink transmission resource according to the specified competition algorithm. After the UE competes with the transmitter, according to the indication of the foregoing transmission mode, the MCS level, the transmission mode, and the uplink resource allocation type determined by the UE are in competition. The uplink data is sent on the frequency resource. And according to the configuration information of the uplink data transmission mode indication field, the uplink data transmission mode information is indicated to the eNB in an indication field before the uplink data.

The eNB successfully demodulates the "uplink data transmission mode indication field" at the starting point of an uplink transmission opportunity, and obtains the transmission mode of the subsequent uplink data as: MCS10, the transmission mode is TM1, the uplink resource allocation type is Type0, and the number of RBs is 15.

The eNB further demodulates the uplink data of the UE in the manner of transmission obtained above. The receiving of the uplink data of the UE on the contention sharing domain is completed.

Example 9

The UE is instructed by the eNB to enter the contention sharing mode by using any one of the foregoing methods in the first embodiment to the sixth embodiment. This embodiment describes in detail the process of determining and indicating the sending mode of the UE in the contention sharing domain.

In order for the eNB to correctly demodulate the uplink data of the UE on the contention sharing domain, the eNB indicates to the UE the following information in the contention sharing configuration message: the time-frequency domain location of the transmission opportunity starting point, the MCS level limitation, and the transmission mode (TM) restriction. .

The MCS level restriction is used to limit the MCS level used by the terminal to send uplink data in the contention sharing domain, or the MCS level set (in this embodiment, the limitation is MCS10); the transmission mode restriction is used to limit the terminal to compete. The transmission mode used to transmit uplink data in the shared domain, or the transmission mode set (limited to TM1 in this embodiment).

The UE contends for the uplink transmission resource according to the specified competition algorithm. After the UE contends to the transmitter, according to the indication of the foregoing transmission mode, the specified MCS level and the transmission mode are in the competitive time and frequency. The uplink data is sent on the source, and the uplink resource allocation type is indicated (in this embodiment, the limit is Type0 and the number of RBs is 15).

The eNB receives and attempts to demodulate the uplink data in each transmission opportunity according to the corresponding MCS level and transmission mode. Until the uplink data of the UE is successfully demodulated, the process of receiving the uplink data of the UE on the contention sharing domain is completed.

Example 10

This embodiment describes a process in which a first type of terminal UE competes for a feedback CQI in a contention sharing domain, and a process in which the eNB adjusts a subsequent uplink data transmission manner according to the received CQI feedback.

In order for the eNB to correctly demodulate the CQI feedback information of the UE on the contention sharing domain, the eNB indicates the following information to the UE in the contention sharing configuration message: the time-frequency domain location of the transmission opportunity starting point, the MCS level limitation, and the transmission mode (TM) limit.

When the UE needs to feed back the CQI, the UE contends for the uplink transmission resource according to the specified competition algorithm. After the UE contends to the transmitter, the CQI information is sent according to the transmission mode indicated in the contention sharing configuration message, that is, the specified MCS level and transmission mode. Sent on the time-frequency resources that are competing.

The eNB receives and attempts to demodulate the uplink data in each transmission opportunity according to the corresponding MCS level and transmission mode. Until the CQI feedback of the UE is successfully demodulated.

The eNB determines, according to the received CQI information, the MCS level previously configured to the UE, and whether the transmission mode is still applicable. If not applicable, the eNB will again send a contention sharing configuration message to the UE to update the configuration of the relevant transmission mode, for example, new. The MCS rating is 15 and the transmission mode is TM2.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method described in the foregoing embodiments.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function. The invention is not limited to any specific form of combination of hardware and software.

The embodiments disclosed in the present invention are as described above, but the contents thereof are only for the purpose of facilitating understanding of the technical solutions of the present invention, and are not intended to limit the present invention. Any modifications and changes in the form and details of the embodiments may be made by those skilled in the art without departing from the scope of the present invention. It is subject to the scope defined by the appended claims.

Industrial applicability

The foregoing technical solution avoids uplink mutual interference between cells, ensures that interference coordination can be dynamically adjusted according to the actual interference state of the network, allows resource multiplexing in a non-interference state, and improves resource allocation efficiency.

Claims

A contention-based resource sharing method applied to communication sites, including:

And transmitting, by the first-type terminal, all the first-type terminals to compete for time-domain and/or frequency-domain resources on the contention-sharing domain;

And receiving uplink data sent by the first type of terminal that obtains the time domain and/or the frequency domain resource in a competitive manner.
The method of claim 1 further comprising:

Determining a contention domain that satisfies the time domain and/or frequency domain requirements within the system bandwidth before transmitting the contention sharing configuration information to all the first type terminals satisfying the preset condition; and/or,

Determining a first type of terminal that meets a predetermined condition; and/or,

Determining the contention sharing configuration information.
The method of claim 1 further comprising:

Before receiving the uplink data sent by the first type of terminal that obtains the time domain and/or the frequency domain resource in a competitive manner, restricting the second type of terminal in the contention sharing domain for all the second type terminals that do not meet the preset condition Send upstream data.
The method of claim 1 further comprising:

Configuring time domain and/or frequency domain resource occupancy restrictions of all the first type terminals on the contention sharing domain before receiving uplink data sent by the first type terminal of the time domain and/or the frequency domain resource in a competitive manner information.
The method of claim 2 wherein determining a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth comprises:

Receiving decision information sent by an upper management node or another communication station;

Determining, according to the decision information, a contention domain that satisfies time domain and/or frequency domain requirements within a system bandwidth;

Or negotiating with one or more communication sites within a first threshold range from the communication site;

According to the negotiation result, the contention domain that satisfies the time domain and/or frequency domain requirements within the system bandwidth is determined.
The method of claim 5 wherein determining a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth comprises:

Determining that the same time domain and/or frequency domain resource from the one or more communication sites and the communication site within the first threshold range of the communication site is a contention shared domain.
The method of claim 2, wherein determining the first type of terminal that satisfies the preset condition comprises:

When the uplink receiving performance statistics result of the terminal, and/or the channel quality measurement result of the terminal meets the current network state preset condition of the communication station, the terminal is determined to be the first type terminal.
The method of claim 2, wherein determining the contention sharing configuration information comprises:

And determining, according to the channel quality indication CQI information sent by the first type of terminal, the contention sharing configuration information.
The method of claim 1, wherein the contention sharing configuration information comprises one or more of the following:

Competition mode, maximum occupied duration, maximum competition window length, minimum contention window length, interframe spacing, frequency domain contention granularity, time domain contention granularity, time domain and/or frequency domain location of transmission opportunity starting point, modulation and coding strategy MCS level restriction, transmission mode TM limitation, uplink resource allocation type restriction, and uplink data transmission mode indicate domain configuration information.
The method of claim 8, wherein the receiving the uplink data sent by the first type of terminal that obtains the resource by the contention method comprises:

Receiving an uplink data transmission mode indication field in a time domain and/or a frequency domain location corresponding to a start point of each transmission opportunity in the contention sharing domain;

Demodulating the uplink data transmission mode indication field by using a first transmission mode set in the uplink data transmission mode indication domain configuration information;

Obtaining a second transmission mode used in the setting of the uplink data transmission mode indication field;

Demodulating uplink data sent by the first type of terminal by using a second transmission manner obtained by demodulation;

Or, according to a modulation and coding strategy defined for uplink data transmission of the first type of terminal The MCS level and/or the transmission mode and/or the uplink resource classification type receive and demodulate the uplink data sent by the first type of terminal in the time domain and/or the frequency domain location corresponding to the start of each transmission opportunity in the contention sharing domain.
The method of claim 1 further comprising:

Determining whether to update the contention sharing configuration of the first type of terminal according to the channel quality indication CQI information sent by the first type of terminal, and when determining to update the contention sharing configuration of the first type of terminal, to the first type of terminal Send updated contention configuration information.
A competition-based resource sharing method applied to a first type of terminal, including:

Receiving, by the communication station, the contention and configuration information that is used by the communication station to indicate that the first type of terminal competes for the time domain and/or the frequency domain resource on the contention sharing domain;

Preempting time domain and/or frequency domain resources on the contention sharing domain in a competitive manner according to the contention sharing configuration information;

When the time domain and/or the frequency domain resource on the contention domain is obtained, the uplink data is sent on the obtained time domain and/or frequency domain resource according to the contention sharing configuration information.
The method of claim 12 further comprising:

Before receiving the contention sharing configuration information sent by the communication station, the channel quality indication CQI information is sent to the communication station.
The method of claim 12 further comprising:

After the content of the contention of the contention-sharing domain is preemptively contiguous, the uplink transmission resource is determined according to the resource occupation restriction information on the contention-sharing domain configured by the communication station.
The method of claim 12, wherein the contention sharing configuration information comprises one or more of the following:

Competition mode, maximum occupied duration, maximum competition window length, minimum contention window length, interframe spacing, frequency domain contention granularity, time domain contention granularity, time domain and/or frequency domain location of transmission opportunity starting point, modulation and coding strategy MCS level restriction, transmission mode TM limitation, uplink resource allocation type restriction, and uplink data transmission mode indicate domain configuration information.
The method of claim 15, wherein the transmitting the uplink data on the obtained resource according to the contention sharing configuration information comprises:

Transmitting the uplink data transmission mode indication field according to the first transmission mode set in the uplink data transmission mode indication domain configuration information;

And transmitting, by using the second transmission mode that is set in the uplink data transmission mode indication field, the uplink data by using the uplink data transmission mode indication field.
The method of claim 12, the method further comprising:

The first type of terminal performs channel quality indication CQI feedback by using the manner of the communication station configuration and/or the time-frequency resource; or the first type of terminal competes for the uplink transmitter in the contention sharing domain to perform CQI feedback.
A contention-based resource sharing device, disposed at a communication site, includes:

a configuration module, configured to send contention sharing configuration information to all the first type terminals that meet the preset condition, where the contention sharing configuration information is used to indicate that all the first type terminals compete for time domain and/or frequency on the contention sharing domain. Domain resource

And, the communication module is configured to receive uplink data sent by the first type of terminal that obtains the time domain and/or the frequency domain resource in a competitive manner.
The apparatus of claim 18, further comprising:

a first initialization module configured to determine a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth; and/or,

a second initialization module, configured to determine a first type of terminal that meets a preset condition; and/or,

And a third initialization module, configured to determine the contention sharing configuration information.
The apparatus of claim 18, further comprising:

a first limiting module, configured to limit, for all second type terminals that do not meet the preset condition, the second type of terminal to send uplink data on the contention sharing domain; and/or

The second restriction module is configured to configure time domain and/or frequency domain resource occupation restriction information of all the first type terminals on the contention shared domain.
The apparatus of claim 19, wherein the first initialization module comprises:

a decision unit, configured to receive the decision information sent by the upper management node or another communication station; and determine, according to the decision information, a contention domain that satisfies the time domain and/or the frequency domain requirement in the system bandwidth;

And/or, a negotiating unit, configured to negotiate with one or more communication sites within a first threshold range of the communication site; and determine, according to the negotiation result, a contention domain that satisfies time domain and/or frequency domain requirements within the system bandwidth .
The apparatus of claim 21 wherein said first initialization module is configured to implement a contention domain that satisfies time domain and/or frequency domain requirements within a system bandwidth by:

Determining that the same time domain and/or frequency domain resource from the one or more communication sites and the communication site within the first threshold range of the communication site is a contention shared domain.
The apparatus of claim 19, wherein the second initialization module is configured to determine that the first type of terminal satisfying the preset condition is determined by:

When the uplink receiving performance statistics result of the terminal, and/or the channel quality measurement result of the terminal meets the current network state preset condition of the communication station, the terminal is determined to be the first type terminal.
The device according to claim 19, wherein

The third initialization module is configured to determine the contention sharing configuration information by determining the contention sharing configuration information according to the channel quality indication CQI information sent by the first type terminal.
The apparatus of claim 18, wherein the communication module comprises:

The indication domain unit is configured to receive an uplink data transmission mode indication domain in a time domain and/or a frequency domain location corresponding to each transmission opportunity starting point in the contention sharing domain;

The first demodulation unit is configured to demodulate the uplink data transmission mode indication field by using a first transmission mode set in the uplink data transmission mode indication domain configuration information;

a determining unit, configured to obtain a second transmission mode used in the setting of the uplink data transmission mode indication field;

a second demodulation unit, configured to demodulate uplink data sent by the first type of terminal by using a second transmission manner obtained by demodulation;

Alternatively, the communication module is configured to achieve reception through a competitive manner by: Uplink data sent by the first type of terminal of the resource: in accordance with the modulation and coding policy MCS level and/or transmission mode and/or uplink resource classification type defined by the uplink data transmission of the first type of terminal, in the contention competition domain The time domain and/or the frequency domain location corresponding to the start of each transmission opportunity receives and demodulates the uplink data sent by the first type of terminal.
The apparatus of claim 18, further comprising:

And an update module, configured to determine, according to the channel quality indication CQI information sent by the first type of terminal, whether to update the contention sharing configuration of the first type of terminal, and when determining to update the contention sharing configuration of the first type terminal, The first type of terminal sends the updated contention configuration information.
A content-based resource sharing device is provided in the first type of terminal, including:

a receiving module, configured to receive contention sharing configuration information sent by the communication station, where the contention sharing configuration information is used to indicate that the first type terminal competes for time domain and/or frequency domain resources on the contention sharing domain;

a competition module, configured to preempt the time domain and/or the frequency domain resource on the contention shared domain in a competitive manner according to the contention sharing configuration information;

And a sending module, configured to send uplink data on the obtained time domain and/or frequency domain resource according to the contention sharing configuration information when obtaining the time domain and/or the frequency domain resource on the contention sharing domain.
The device of claim 27,

The sending module is further configured to send channel quality indication CQI information to the communication station.
The device of claim 27,

The contention module is further configured to determine an uplink transmission resource according to the resource occupation restriction information on the contention sharing domain configured by the communication station.
The apparatus of claim 27, wherein the transmitting module comprises:

The first transmission unit is configured to send the uplink data transmission mode indication field according to the first transmission mode set in the uplink data transmission mode indication domain configuration information;

The second transmission unit is configured to send the uplink data by using the second transmission mode set in the uplink data transmission mode indication field by the uplink data transmission mode indication field.
The device of claim 27,

The sending module is further configured to adopt the manner in which the communication station is configured, and/or the time-frequency resource performs channel quality indication CQI feedback; or, the competition for the uplink transmitter in the contention sharing domain performs CQI feedback.