WO2016041378A1

WO2016041378A1 - Resource allocation and data transmission method, device and system

Info

Publication number: WO2016041378A1
Application number: PCT/CN2015/080103
Authority: WO
Inventors: 龚政委; 丁仁天
Original assignee: 华为技术有限公司
Priority date: 2014-09-15
Filing date: 2015-05-28
Publication date: 2016-03-24
Also published as: CN104244420A; CN104244420B

Abstract

Disclosed in the present invention is a resource allocation and data transmission method used for providing a low-complexity resource allocation scheme for a wireless communication system with different uplink and downlink resource particle sizes. The invention further provides related equipment and a related system. According to certain practicable embodiments of the invention, the sum of bandwidths of a plurality of uplink sub-carriers in the wireless communication system is equal to the bandwidth of a downlink carrier. The method comprises: a first user equipment receives resource allocation information sent by network side equipment, wherein the resource allocation information indicates the first user equipment to adopt a first uplink sub-carrier in a plurality of uplink sub-carriers in an uplink mode and indicates the first user equipment to adopt a first downlink resource group in a downlink mode, and the first downlink resource group is one of a plurality of downlink resource groups formed by dividing resources of the downlink carrier according to time domains; the first user equipment adopts the first downlink resource group for receiving downlink data and adopts the first uplink sub-carrier for transmitting uplink data.

Description

Resource allocation and data transmission method, device and system

The present application claims priority to Chinese Patent Application No. 201410468314.4, entitled "Resource Allocation and Data Transmission Method, Apparatus and System", filed on September 15, 2014, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a resource allocation and data transmission method, device, and system.

Background technique

With the trend of the ubiquitous IoT business in the future, IoT solutions based on wireless communication have become the current research hotspots. Typical services such as smart meter reading require a wider coverage distance than existing wireless services. New technical requirements for existing wireless technologies. The research results show that under the same transmission power, reducing the transmission bandwidth and increasing the power spectral density (PSD) of the signal can be used to improve the coverage of the system. For downlink transmission, the transmission power of the network side device decreases as the transmission bandwidth decreases. Therefore, the downlink transmission cannot improve the PSD by reducing the transmission bandwidth, and the coverage level can only be improved by the conventional repeated transmission technology. However, for the uplink transmission, since the transmission power of the user equipment does not change, the manner in which the PSD is improved by reducing the transmission bandwidth under the same transmission power is a quite effective way to improve the coverage level of the system.

The reduction of the uplink transmission bandwidth results in different uplink and downlink transmission bandwidths. However, in various wireless communication systems of the prior art, such as a Long Term Evolution (LTE) system, the resource allocation scheme can only be applied to the case where the uplink and downlink transmission bandwidths are the same. In addition, in the resource allocation scheme of the existing LTE system, multiple uplink carriers are used to transmit multiple downlink carriers, and scheduling information of multiple uplink carriers may be carried in different downlink carriers, or may be carried in the same downlink carrier. Therefore, there are multiple resource scheduling modes in the frequency domain. Moreover, even if the scheduling information of multiple uplink carriers is carried in the same downlink carrier, multiple resource scheduling modes exist in the time domain, thereby causing the user equipment to The resource scheduling mode is monitored in real time, which makes the user equipment more complex and consumes more power.

Summary of the invention

The embodiments of the present invention provide a resource allocation and data transmission method, device, and system, which are used to provide a resource allocation scheme with low complexity for a wireless communication system with different uplink and downlink transmission bandwidths.

A first aspect of the present invention provides a resource allocation and data transmission method, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to a downlink carrier bandwidth. And the bandwidth of the downlink carrier is an integer multiple of a bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of user equipment, where the multiple user equipment includes a first user equipment; The method includes: the first user equipment receives resource allocation information sent by the network side device, where the resource allocation information indicates that the first user equipment uplink uses a first uplink subcarrier of the multiple uplink subcarriers, And indicating that the first user equipment downlink adopts a first downlink resource group, where the first downlink resource group is one of a plurality of downlink resource groups that divide the resources of the downlink carrier into time domains; the first The user equipment receives the downlink data by using the first downlink resource group, and sends the uplink data by using the first uplink subcarrier.

With reference to the first aspect, in a first possible implementation manner, the receiving, by the first user equipment, the resource allocation information sent by the network side device includes: receiving, by the first user equipment, downlink control sent by the network side device The channel DCCH signal acquires resource allocation information carried in the DCCH signal, where the resource allocation information includes indication information of the first uplink subcarrier, and indication information of the first downlink resource group.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, before the first user equipment receives the resource allocation information sent by the network side device, the method further includes: the first user The device receives the physical broadcast channel PBCH signal sent by the network side device, and acquires uplink resource partition information carried in the PBCH signal, where the uplink resource partition information includes each uplink subcarrier of the multiple uplink subcarriers. The initial frequency point and the carrier bandwidth and the carrier number; the indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.

In conjunction with the first or second possible implementation of the first aspect, in a third possible implementation, the basic resource unit of the wireless communication system is a burst Burst, and the plurality of consecutive Bursts form a block block. The downlink carrier includes a block and an independent burst that does not belong to the block. The indication information of the first downlink resource group includes: a number of a starting block of the first downlink resource group.

And the number of the starting independent Burst

With the third possible implementation of the first aspect, in a fourth possible implementation, the first user equipment uses the first downlink resource group to receive downlink data, and the first uplink is adopted. The sending, by the subcarrier, the uplink data includes: the number of the first user equipment in the first downlink resource group is

Block or number is

The Burst receives the downlink data, and the number of the first uplink subcarrier is

Block or number is

Burst sends uplink data, where

Indicates rounding down and m is a positive integer.

The second aspect of the present invention provides another resource allocation and data transmission method, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to one downlink carrier. Bandwidth, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of user equipments, where the multiple user equipments include the first user equipment; The method includes: the network side device sends resource allocation information to the first user equipment, where the resource allocation information indicates that the first user equipment uplink uses a first uplink subcarrier of the multiple uplink subcarriers, And indicating that the first user equipment downlink adopts a first downlink resource group, where the first downlink resource group is one of multiple downlink resource groups that divide the resources of the downlink carrier according to a time domain; a downlink resource group sends downlink data to the first user equipment, and receives the first user equipment by using the first uplink subcarrier Uplink data transmission.

With reference to the second aspect, in a first possible implementation, the sending, by the network side device, the resource allocation information to the first user equipment includes: sending, by the network side device, a downlink control channel DCCH signal carrying resource allocation information The first user equipment, the resource allocation information includes indication information of the first uplink subcarrier, and indication information of the first downlink resource group.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, before the network side device sends the resource allocation information to the first user equipment, the method further includes: sending, by the network side device a physical broadcast channel PBCH signal carrying the uplink resource division information to the first user equipment, where the uplink resource partition information includes each uplink subcarrier of the multiple uplink subcarriers The initial frequency point and the carrier bandwidth and the carrier number; the indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.

With reference to the first or second possible implementation of the second aspect, in a third possible implementation, the basic resource unit of the wireless communication system is a burst Burst, and a plurality of consecutive Bursts form a block block. The downlink carrier includes a block and an independent burst that does not belong to the block. The indication information of the first downlink resource group includes: a number of a starting block of the first downlink resource group.

And the number of the starting independent Burst

With the third possible implementation of the second aspect, in a fourth possible implementation, the using the first downlink resource group to send downlink data to the first user equipment, and receiving the The uplink data sent by the first user equipment by using the first uplink subcarrier includes: the number of the first downlink resource group is

Block or number is

The Burst sends the downlink data to the first user equipment, and receives the number that is sent by the first user equipment and is carried in the first uplink subcarrier.

Block or number is

Upstream data in Burst, where

Indicates rounding down and m is a positive integer.

A third aspect of the present invention provides a user equipment, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to a downlink carrier bandwidth, and the The bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of the user equipments; the user equipment includes: a first receiving module, configured to receive the The resource allocation information sent by the network side device, where the resource allocation information indicates that the user equipment uses the first uplink subcarrier of the multiple uplink subcarriers in the uplink, and indicates that the user equipment uses the first downlink resource group in the downlink. The first downlink resource group is one of multiple downlink resource groups that divide the resources of the downlink carrier according to the time domain; the second receiving module is configured to receive downlink data by using the first downlink resource group; And a sending module, configured to send uplink data by using the first uplink subcarrier.

With reference to the third aspect, in a first possible implementation, the first receiving module is specifically configured to receive a downlink control channel DCCH signal sent by the network side device, and acquire the DCCH signal. And the resource allocation information, where the resource allocation information includes indication information of the first uplink subcarrier, and indication information of the first downlink resource group.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation, the first receiving module is further configured to receive a physical broadcast channel PBCH signal sent by the network side device, to obtain the PBCH The uplink resource partitioning information carried in the signal, where the uplink resource partitioning information includes a starting frequency point and a carrier bandwidth and a carrier number of each of the plurality of uplink subcarriers; and the first uplink subcarrier The indication information includes: a carrier number of the first uplink subcarrier.

With reference to the first or second possible implementation of the third aspect, in a third possible implementation, the basic resource unit of the wireless communication system is a burst Burst, and a plurality of consecutive Bursts form a block block. The downlink carrier includes a block and an independent burst that does not belong to the block. The indication information of the first downlink resource group includes: a number of a starting block of the first downlink resource group.

And the number of the starting independent Burst

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation, the second receiving module is specifically configured to:

Block or number is

The Burst receives the downlink data; the sending module is specifically configured to use the number of the first uplink subcarrier as

Block or number is

Burst sends uplink data, where

Indicates rounding down and m is a positive integer.

A fourth aspect of the present invention provides a network side device, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to a downlink carrier bandwidth, and The bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of user equipments, and the plurality of user equipments include a first user equipment; The method includes: a first sending module, configured to send resource allocation information to the first user equipment, where the resource allocation information indicates that the first user equipment uplink uses a first uplink subcarrier of the multiple uplink subcarriers, And indicating that the first user equipment downlink adopts a first downlink resource group, where the first downlink resource group is one of a plurality of downlink resource groups that divide the resources of the downlink carrier according to a time domain; the second sending module For sending by using the first downlink resource group. The downlink data is sent to the first user equipment; and the receiving module is configured to receive uplink data that is sent by the first user equipment by using the first uplink subcarrier.

With reference to the fourth aspect, in a first possible implementation, the first sending module is specifically configured to send a downlink control channel DCCH signal that carries resource allocation information to the first user equipment, where the resource allocation information includes The indication information of the first uplink subcarrier and the indication information of the first downlink resource group.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation, the first sending module is further configured to send a physical broadcast channel PBCH signal that carries uplink resource partitioning information to the first user. The device, the uplink resource partitioning information includes a starting frequency point and a carrier bandwidth of each of the plurality of uplink subcarriers, and a carrier number, where the indication information of the first uplink subcarrier includes: The carrier number of an uplink subcarrier.

With reference to the first or second possible implementation manner of the fourth aspect, in a third possible implementation, the basic resource unit of the wireless communication system is a burst Burst, and multiple consecutive Bursts form a block block. The downlink carrier includes a block and an independent burst that does not belong to the block. The indication information of the first downlink resource group includes: a number of a starting block of the first downlink resource group.

And the number of the starting independent Burst

With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation, the second sending module is specifically configured to:

Block or number is

The Burst sends the downlink data to the first user equipment; the receiving module is specifically configured to receive, by the first user equipment, the number carried in the first uplink subcarrier is

Block or number is

Upstream data in Burst, where

Indicates rounding down and m is a positive integer.

A fifth aspect of the present invention provides a wireless communication system, in which the uplink and downlink resource granularities are different. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to a downlink carrier bandwidth, and The bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of user equipments, and the user equipment is The user equipment of the third aspect, wherein the network side device is the network side device according to the fourth aspect of the present invention.

It can be seen that the embodiment of the present invention discloses a resource allocation and data transmission method, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, the sum of bandwidths of multiple uplink subcarriers is equal to one. The bandwidth of the downlink carrier, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. The method uses the downlink carrier to be divided into multiple downlink resource groups according to the time domain, and the user equipments respectively allocate the downlink resources. The technical solution for receiving and transmitting data on the group and the uplink subcarriers achieves the following beneficial effects:

In this solution, one downlink carrier may schedule multiple uplink subcarriers, the bandwidth of the downlink carrier is equal to the sum of bandwidths of the schedulable multiple uplink subcarriers, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. In other words, the scheme reduces the uplink transmission bandwidth. Therefore, when the transmission power of the user equipment is constant, the PSD of the uplink transmission can be effectively improved, thereby effectively improving the coverage of the uplink transmission.

In this solution, the bandwidth of one downlink carrier is equal to the sum of the bandwidths of the multiple uplink subcarriers that can be scheduled by the downlink carrier, and the downlink carrier is divided into multiple downlink resource groups according to the time domain, and each downlink resource group corresponds to one of the uplink sub-groups. Carrier, one uplink subcarrier is scheduled by each downlink resource group, so that the scheme can be applied to a wireless communication system with different uplink and downlink resource granularities;

In this solution, one downlink carrier may be configured with multiple uplink subcarriers, and each uplink subcarrier corresponds to one downlink resource group in the downlink carrier. For the user equipment, only the allocated uplink subcarrier and the corresponding downlink need to be used. The resource group can send and receive data, and does not need to monitor the scheduling mode in the time domain. However, the scheduling information of multiple uplink carriers in the prior art is from the LTE system of the same downlink carrier, and the user equipment needs to be in the downlink carrier. The scheduling mode on the time domain is monitored on all the time domain resources. It can be seen that compared with the LTE system, the present invention simplifies the scheduling mode and simplifies the resource allocation relationship; since the user equipment does not need to dynamically monitor in any downlink carrier resources, Thereby, the complexity of the user equipment is reduced, and the power consumption of the user equipment is reduced.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will be needed in the description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS The drawings used in the following description are merely illustrative of the embodiments of the present invention, and those of ordinary skill in the art can also The figure obtains other figures.

1 is a schematic diagram of an uplink subcarrier and a downlink carrier in a wireless communication system according to an embodiment of the present invention;

2 is a schematic diagram of a resource allocation and data transmission method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a resource allocation and data transmission method according to another embodiment of the present invention; FIG.

4 is a resource structure diagram of a downlink and a downlink of a wireless communication system according to an application example of the present invention;

FIG. 5 is a schematic diagram of a user equipment according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of a network side device according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a user equipment according to another embodiment of the present invention; FIG.

FIG. 8 is a schematic diagram of a network side device according to another embodiment of the present invention.

detailed description

The embodiment of the invention provides a resource allocation and data transmission method, device and system, which are used for providing a resource allocation scheme for a narrowband communication scheme with different uplink and downlink transmission bandwidths.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is an embodiment of the invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

The resource allocation and data transmission method provided by the embodiments of the present invention is applied to a wireless communication system. The following is a brief introduction to the wireless communication system. The wireless communication system may be an improvement based on a system such as GSM (Global System for Mobile communication) or LTE (Long Term Evolution), and the difference is compared with the existing GSM or LTE system. The uplink and downlink transmission bandwidths are different. The transmission bandwidth is different from the system bandwidth. The system bandwidth refers to the total bandwidth of the uplink or downlink, and the transmission bandwidth refers to the bandwidth of the carrier that carries the signal in the frequency domain. A carrier can be understood as a radio frequency resource of one frequency band.

In existing GSM or LTE systems, the uplink and downlink resource granularities are the same, or the uplink carrier. The bandwidth and time slot of the downlink carrier are the same. In the wireless communication system of the present invention, in order to improve the coverage level and reduce the uplink transmission bandwidth, an uplink carrier that is originally the same as the downlink carrier bandwidth is divided into multiple subcarriers according to the frequency domain, and each user equipment (User Equipment, UE) uses only one uplink subcarrier for uplink data transmission, thereby reducing the uplink transmission bandwidth. Under the same transmission power, the PSD of the uplink transmission can be improved, thereby improving the uplink coverage of the system.

In the embodiment of the present invention, one downlink carrier may schedule multiple uplink subcarriers, or the scheduling information of multiple uplink subcarriers may be from the same downlink carrier, and the sum of bandwidths of multiple uplink subcarriers that can be scheduled by one downlink carrier Is equal to the bandwidth of the downlink carrier. Moreover, the bandwidths of multiple uplink subcarriers may be the same or different, so as to adapt to the coverage requirements of different user equipments. Moreover, the bandwidth of the downlink carrier is an integer multiple of the bandwidth of each uplink subcarrier, for example, 2 times, or 3 times, or 4 times, or more times.

In a wireless communication system, a basic resource unit can be defined, which is a signal bearing unit that occupies a certain bandwidth in the frequency domain and occupies a certain length in the time domain. In the uplink and downlink transmissions, it is necessary to ensure that the uplink basic resource unit and the downlink basic resource unit have the same capacity to carry signals of the same size. Above the basic resource unit, a higher granularity resource unit may also be included, and each higher granularity resource unit may include multiple basic resource units.

In the wireless communication system of the embodiment of the present invention, since the bandwidth of the uplink subcarrier is smaller than the bandwidth of the downlink carrier, in order to ensure that the basic resource units of the uplink and downlink have the same capacity, the basic resource unit in the uplink subcarrier needs to be extended in the time domain. The length on. For example, if the bandwidth of one uplink subcarrier is one-half of the downlink carrier bandwidth, the time domain length of the basic resource unit of the uplink subcarrier needs to be twice the time domain length of the basic resource unit of the downlink carrier. In the system of the embodiment of the present invention, since the time domain length of the uplink basic resource unit changes, the time domain length of the higher granularity resource unit, such as the radio frame and the subframe, also changes correspondingly, when the uplink subcarrier When the bandwidth is reduced to half of the downlink carrier bandwidth, the time domain length of the uplink subframe is correspondingly doubled, for example, from 1 ms to 2 ms.

In the wireless communication system of the embodiment of the present invention, since the frequency domain width and the time domain length of the basic resource unit of the uplink subcarrier are changed with respect to the downlink carrier, it can be said that the uplink and downlink resources of the wireless communication system are Different granularity. The resource granularity can be understood as the basic resource unit and its parameters, and the parameters include the frequency domain width and the time domain length.

Please refer to FIG. 1 , which is an uplink subcarrier and a downlink in a wireless communication system according to an embodiment of the present invention. Schematic diagram of the wave. In FIG. 1, the vertical direction represents the frequency domain bandwidth, and the horizontal direction represents the time domain. As can be seen from the figure, one uplink carrier is divided into four uplink subcarriers UL. The bandwidth of the first uplink subcarrier UL1 is 1/2 of the bandwidth of the downlink carrier DL, and the bandwidth of the second uplink subcarrier UL2 is 1/4 of the bandwidth of the downlink carrier DL, and the third uplink subcarrier UL3 The bandwidth is 1/8 of the bandwidth of the downlink carrier DL, and the bandwidth of the fourth uplink subcarrier UL4 is also 1/8 of the bandwidth of the downlink carrier DL. Correspondingly, in the same length of the time domain, the time domain lengths of the resource elements of the uplink subcarriers UL1, UL2, UL3, and UL4 are respectively 2 times, 4 times, 8 times, and 8 times of the time domain length of the resource elements of the downlink carrier. Times. It can be seen that, in the same time domain length, the downlink carrier DL includes 8 resource units, the first uplink subcarrier UL1 includes 4 resource units, and the second uplink subcarrier UL2 includes 2 resource units, and the third uplink subroutine The carrier UL3 includes one resource unit, and the fourth uplink subcarrier UL4 includes one resource unit.

The wireless communication system to which the method of the embodiment of the present invention is applied is briefly introduced.

The technical solutions of the embodiments of the present invention are described in detail below by using specific embodiments.

Referring to FIG. 2, an embodiment of the present invention provides a resource allocation and data transmission method for a wireless communication system. The wireless communication system is a wireless communication system having different uplink and downlink resource granularities as described above. In the wireless communication system, the sum of the bandwidths of the plurality of uplink subcarriers is equal to the bandwidth of one downlink carrier, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. The wireless communication system includes a network side device and a plurality of user devices, and the plurality of user devices includes a first user device. Methods can include:

The first user equipment obtains the resource allocation information, where the resource allocation information is used to indicate that the first user equipment uses the first uplink subcarrier in the uplink subcarriers, and the first user equipment is in the downlink. a resource group, where the first downlink resource group is one of a plurality of downlink resource groups that divide the resources of the downlink carrier into time domains.

The first user equipment receives the downlink data by using the first downlink resource group, and sends the uplink data by using the first uplink subcarrier.

The technical solution of the embodiment of the present invention may be an improvement based on a wireless communication system in which an uplink carrier is scheduled by one downlink carrier in the prior art, for example, improvement based on the GSM system. In a wireless communication system in which an uplink carrier is scheduled by one downlink carrier, the user equipment can learn the correspondence between the used uplink carrier and the downlink carrier that schedules the uplink carrier by using various conventional techniques. For example, the corresponding relationship is defined in the protocol and stored in the user equipment and the network side device in advance, or is broadcasted by the network side device to the user equipment, and so on, and details are not described herein.

In the embodiment of the present invention, in order to improve the uplink coverage, one uplink carrier is divided into multiple uplink subcarriers according to the frequency domain, and each user equipment uses only one uplink subcarrier to perform uplink data transmission. In some implementation manners, an uplink carrier may be determined to be divided into multiple uplink subcarriers according to a frequency domain, and is not subsequently adjusted. In other embodiments, the uplink carrier is divided into the uplink subcarriers by the frequency domain, and the number of the allocated uplink subcarriers and the bandwidth of each uplink subcarrier may also be adjusted in real time according to the system network condition.

In the embodiment of the present invention, the uplink resource allocation information used to describe the uplink subcarrier allocation may be stored in the user equipment in advance, or the uplink resource division information may be sent to the user equipment in a broadcast manner by, for example, the network side device, for example, The signal is carried in a Physical Broadcast Channel (PBCH) signal and sent to the user equipment. For example, the uplink resource partitioning information may include: a starting frequency point and a carrier bandwidth of each uplink subcarrier of the plurality of uplink subcarriers, and a carrier number.

In the wireless communication system of the embodiment of the present invention, scheduling information of multiple uplink subcarriers is from the same downlink carrier. The scheduling information includes uplink resource division information and resource allocation information. It can be understood that, since the scheduling information of the multiple uplink subcarriers is from the same downlink carrier, the downlink carrier has a certain correspondence with the multiple uplink subcarriers included in the downlink carrier schedulable uplink carrier. In the following, a downlink carrier may be configured to schedule multiple uplink subcarriers, which are referred to as multiple uplink subcarriers corresponding to the downlink carrier. Correspondence in this context refers to having a schedulable relationship with each other. In the embodiment of the present invention, the sum of the bandwidths of the plurality of uplink subcarriers that can be scheduled by one downlink carrier should be equal to the bandwidth of the downlink carrier. And, the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. In addition, the bandwidths of multiple uplink subcarriers may be the same or different, to meet the coverage requirements of different user equipments.

In the embodiment of the present invention, a plurality of uplink subcarriers that can be scheduled by one downlink carrier can be allocated to multiple user equipments, and each user equipment uses one of the uplink subcarriers to transmit uplink data, but the multiple user equipments are used. The downlink data is received by the same downlink carrier, which requires grouping the resources of the downlink carrier to allocate multiple downlink resource groups to multiple user equipments, so that each user equipment uses one of the downlink resources. The group performs downlink data reception.

In the embodiment of the present invention, the downlink carrier resource of the system may be divided into multiple downlink resource groups in time domain by the network side device of the wireless communication system, and the number of the divided downlink resource groups and the downlink carrier group may be scheduled. The number of uplink subcarriers is the same. The method for dividing a resource of a downlink carrier into multiple downlink resource groups according to a time domain may include: all resource element numbers of the downlink carrier are divided into a downlink resource group according to a preset rule. , thereby dividing a plurality of downlink resource groups.

It can be seen that, in the embodiment of the present invention, the uplink carriers are grouped according to the frequency domain, and multiple uplink subcarriers are divided; the downlink carriers are grouped according to the time domain, and multiple downlink resource groups are divided; The carrier and the downlink resource group perform data transmission or reception, and the bandwidths of the uplink subcarrier and the downlink resource group are different, and the time domain length of the basic resource unit included is also different, so that the uplink and downlink resource granularity can be successfully applied. Different wireless communication systems.

It can be understood that before the transmission of the uplink and downlink data, the user equipment needs to obtain the resource allocation information in advance to learn the uplink subcarrier and the downlink resource group allocated to itself. In this embodiment of the present invention, the resource allocation information may be sent by the network side device of the system, for example, the base station, to the user equipment, for example, the first user equipment. The resource allocation information is used to indicate that the first user equipment adopts the first uplink subcarrier of the multiple uplink subcarriers, and the first user equipment is configured to adopt the first downlink resource group. The first downlink resource group is one of a plurality of downlink resource groups that divide the resources of the downlink carrier into time domains.

In some embodiments of the present invention, the network side device may carry the resource allocation information in a downlink control channel (DCCH) signal and send the information to the first user equipment. The first user equipment can obtain the resource allocation information carried in the DCCH signal by receiving the DCCH signal sent by the network side device of the system. The resource allocation information may include the indication information of the first uplink subcarrier, to indicate that the user equipment adopts the first uplink subcarrier, and the indication information of the first downlink resource group, to indicate that the user equipment adopts downlink The first downlink resource group. The indication information of the first uplink subcarrier may include: a carrier number of the first uplink subcarrier in the multiple uplink subcarriers.

It should be noted that, specifically to the GSM system, the DCCH may correspond to a Dedicated Control Channel (DCCH). Specifically, in the LTE system, the DCCH may correspond to a Physical Downlink Control Channel (PDCCH). Specific to In other systems, it may also refer to other downlink channels for transmitting control information.

After receiving the resource allocation information, the first user equipment may receive the downlink data by using the corresponding first downlink resource group according to the indication of the resource allocation information, that is, the resources included in the first downlink resource group of the downlink carrier. In the unit, receiving downlink data; and performing uplink data transmission by using the corresponding first uplink subcarrier. Correspondingly, the network side device receives the uplink data sent by the first user equipment on the first uplink subcarrier, and carries the downlink data corresponding to the first user equipment in the resource unit included in the first downlink resource group, and sends the data to the first downlink resource group. A user device.

It can be seen that, in the embodiment of the present invention, the uplink resource is frequency-divided, and the downlink resource is time-divided, and the specific implementation can be performed in at least two ways. In one mode, the frequency domain grouping of the uplink carrier and the time domain grouping of the downlink carrier may be pre-defined by the protocol (ie, static division), and the network side device and the user are pre-stored. In another mode, the network side device is semi-statically or dynamically divided, and indicates the user. For example, as described above, the uplink resource division information is carried in the PBCH signal and sent to the user equipment in a broadcast manner; the resource allocation information is carried. The DCCH signal is sent to the user equipment. The uplink resource division information includes information that the uplink carrier frequency is divided into multiple uplink subcarriers, and the resource allocation information includes information that divides the downlink carrier into multiple downlink resource groups.

It can be understood that the foregoing solution in the embodiment of the present invention may be specifically implemented in a user equipment, for example, a mobile phone or a mobile communication terminal, a tablet computer, or the like.

In the above, the embodiment of the present invention discloses a resource allocation and data transmission method, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, the sum of bandwidths of multiple uplink subcarriers is equal to one downlink carrier. The bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. The method uses the time domain to divide the downlink carrier into multiple downlink resource groups, which respectively correspond to multiple uplink subcarriers (or, respectively, The technical solution for receiving and transmitting data on the allocated downlink resource group and the uplink subcarrier respectively is obtained by scheduling the multiple uplink subcarriers, and the following beneficial effects are obtained:

In this solution, one downlink carrier may schedule multiple uplink subcarriers, the bandwidth of the downlink carrier is equal to the sum of bandwidths of the schedulable multiple uplink subcarriers, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. In other words, the scheme reduces the uplink transmission bandwidth, and thus, the PSD of the uplink transmission can be effectively improved when the transmission power of the user equipment is constant, thereby effectively improving the uplink. The coverage of the line transmission;

In this solution, the bandwidth of one downlink carrier is equal to the sum of the bandwidths of the multiple uplink subcarriers that can be scheduled by the downlink carrier, and the downlink carrier is divided into multiple downlink resource groups according to the time domain, and each downlink resource group corresponds to one of the uplink sub-groups. Carrier, so that the scheme can be applied to wireless communication systems with different uplink and downlink resource granularities;

In this solution, one downlink carrier may be configured with multiple uplink subcarriers, and each uplink subcarrier corresponds to one downlink resource group in the downlink carrier. For the user equipment, only the corresponding uplink subcarrier and downlink resource group are required. The data transmission and reception are performed, and the scheduling mode in the time domain is not required to be monitored. However, the scheduling information of multiple uplink carriers in the prior art is from the LTE system of the same downlink carrier, and the user equipment needs to be in the downlink carrier. The scheduling mode on the time domain is monitored on all the time domain resources. It can be seen that compared with the LTE system, the present invention simplifies the scheduling mode and simplifies the resource allocation relationship; since the user equipment does not need to perform dynamic monitoring internally, thereby reducing the user equipment. The complexity and convenience of reducing the power consumption of the user equipment.

The embodiment of FIG. 2 illustrates the implementation method of the present invention from one end of the user equipment. In the following, the method of the embodiment of the present invention is also described from the network side device end.

Referring to FIG. 3, an embodiment of the present invention provides a resource allocation and data transmission method for a wireless communication system. The wireless communication system is a wireless communication system having different uplink and downlink resource granularities as described above. In the wireless communication system, a sum of bandwidths of the plurality of uplink subcarriers is equal to a bandwidth of one downlink carrier, and a bandwidth of the downlink carrier is an integer multiple of a bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side The device and the plurality of user devices, the plurality of user devices including the first user device. Methods can include:

The network side device sends the resource allocation information to the first user equipment, where the resource allocation information indicates that the first user equipment uplink uses the first uplink subcarrier of the multiple uplink subcarriers, and the indication The first user equipment downlink adopts a first downlink resource group, and the first downlink resource group is one of a plurality of downlink resource groups that divide the resources of the downlink carrier according to a time domain;

The first downlink resource group is configured to send downlink data to the first user equipment, and receive uplink data sent by the first user equipment by using the first uplink subcarrier.

In the embodiment of the present invention, in order to improve uplink coverage, one uplink carrier is divided into multiple by frequency domain. For each uplink subcarrier, each user equipment uses only one uplink subcarrier for uplink data transmission. In some implementation manners, an uplink carrier may be determined to be divided into multiple uplink subcarriers according to a frequency domain, and is not subsequently adjusted. In other embodiments, the uplink carrier is divided into the uplink subcarriers by the frequency domain, and the number of the allocated uplink subcarriers and the bandwidth of each uplink subcarrier may also be adjusted in real time according to the system network condition.

In the embodiment of the present invention, the uplink resource allocation information used to describe the uplink subcarrier allocation may be stored in the user equipment in advance, or the uplink resource division information may be sent to the user equipment in a broadcast manner by, for example, the network side device, for example, The signal is carried in a Physical Broadcast Channel (PBCH) signal and sent to the user equipment. The uplink resource division information may include: a starting frequency point and a carrier bandwidth of each uplink subcarrier of the multiple uplink subcarriers, and a carrier number.

In the wireless communication system of the embodiment of the present invention, scheduling information of multiple uplink subcarriers is from the same downlink carrier. The scheduling information includes uplink resource division information and resource allocation information. It can be understood that, since the scheduling information of multiple uplink subcarriers is from the same downlink carrier, one downlink carrier has a certain correspondence with multiple uplink subcarriers that can be scheduled by the downlink carrier. In the embodiment of the present invention, the sum of the bandwidths of the plurality of uplink subcarriers that can be scheduled by one downlink carrier should be equal to the bandwidth of the downlink carrier. And, the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. In addition, the bandwidths of multiple uplink subcarriers may be the same or different, to meet the coverage requirements of different user equipments.

In the embodiment of the present invention, a plurality of uplink subcarriers that can be scheduled by one downlink carrier can be allocated to multiple user equipments, and each user equipment uses one of the uplink subcarriers to transmit uplink data, but the multiple user equipments are used. The downlink data is received by the same downlink carrier, which requires grouping the resources of the downlink carrier to allocate multiple downlink resource groups to multiple user equipments, so that each user equipment uses one of the downlink resources. The group performs downlink data reception. In the method of the embodiment of the present invention, the network side device of the wireless communication system may divide the downlink carrier resource of the system into multiple downlink resource groups in time domain, and the number of the divided downlink resource groups and the downlink carrier schedulable uplink may be configured. The number of subcarriers is the same, so that each downlink resource group is paired with one uplink subcarrier for downlink reception and uplink transmission of one user equipment. In some embodiments of the present invention, the method for dividing a resource of a downlink carrier into multiple downlink resource groups according to a time domain may include: All basic resource unit numbers of the carrier are divided into a downlink resource group according to a preset rule, thereby dividing a plurality of downlink resource groups.

It can be understood that before the transmission of the uplink and downlink data, the user equipment needs to obtain the resource allocation information in advance to learn the uplink subcarrier and the downlink resource group allocated to itself. The resource allocation information may be sent by the network side device of the system, such as a base station, to the first user equipment, such as the first user equipment. The resource allocation information is used to indicate that the first user equipment adopts the first uplink subcarrier of the multiple uplink subcarriers, and the first user equipment is configured to adopt the first downlink resource group. The first downlink resource group is one of a plurality of downlink resource groups that divide the resources of the downlink carrier into time domains.

In some embodiments of the present invention, the network side device may carry the resource allocation information in the DCCH signal and send the information to the first user equipment. The first user equipment can obtain the resource allocation information carried in the DCCH signal by receiving the DCCH signal sent by the network side device of the system. The resource allocation information may include the indication information of the first uplink subcarrier, to indicate that the user equipment adopts the first uplink subcarrier, and the indication information of the first downlink resource group, to indicate that the user equipment adopts downlink The first downlink resource group. The indication information of the first uplink subcarrier may include: a carrier number of the first uplink subcarrier in the multiple uplink subcarriers.

After receiving the resource allocation information, the first user equipment may receive the downlink data by using the corresponding first downlink resource group according to the indication of the resource allocation information, that is, receiving in the first downlink resource group of the downlink carrier. Downlink data; and, using the corresponding first uplink subcarrier for uplink data transmission. Correspondingly, the network side device receives the uplink data sent by the first user equipment on the first uplink subcarrier, and carries the downlink data corresponding to the first user equipment in the resource unit included in the first downlink resource group, and sends the data. Give the first user device.

It can be seen that, in the embodiment of the present invention, the uplink resource is frequency-divided, and the downlink resource is time-divided, and the specific implementation can be performed in at least two ways. In one mode, frequency domain grouping and pairing of uplink carriers The time domain grouping of the downlink carrier can be pre-defined by the protocol (that is, static division), and the network side device and the user are pre-stored. In another mode, the network side device is semi-statically or dynamically divided, and indicates the user. For example, as described above, the uplink resource division information is carried in the PBCH signal and sent to the user equipment in a broadcast manner; the resource allocation information is carried. The DCCH signal is sent to the user equipment. The uplink resource division information includes information that the uplink carrier frequency is divided into multiple uplink subcarriers, and the resource allocation information includes information that divides the downlink carrier into multiple downlink resource groups.

It can be understood that the foregoing solution in the embodiment of the present invention may be specifically implemented in a network side device, for example, a base station or a base station controller.

In the above, the embodiment of the present invention discloses a resource allocation and data transmission method, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of the multiple uplink subcarriers is equal to The bandwidth of the downlink carrier, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. The method uses the downlink carrier to be divided into multiple downlink resource groups according to the time domain, corresponding to the corresponding downlink carrier. A plurality of uplink subcarriers (or, respectively, used for scheduling a plurality of uplink subcarriers), and the user equipment respectively performs data reception and transmission on the allocated downlink resource group and the uplink subcarrier, and obtains the following beneficial effects. :

In this solution, one downlink carrier may be configured with multiple uplink subcarriers, and each uplink subcarrier corresponds to one downlink resource group in the downlink carrier. For the user equipment, only the corresponding uplink subcarrier and downlink resource group are required. It is only necessary to perform data transmission and reception, and it is not necessary to monitor the scheduling manner in the time domain, and the scheduling information of multiple uplink carriers in the prior art is from the LTE system of the same downlink carrier. The user equipment also needs to monitor the scheduling manner in the time domain on all the time domain resources of the downlink carrier. It can be seen that compared with the LTE system, the present invention simplifies the scheduling mode and simplifies the resource allocation relationship; Dynamic monitoring is performed in any downlink carrier resource, thereby reducing the complexity of the user equipment and reducing the power consumption of the user equipment.

In order to facilitate a better understanding of the technical solutions provided by the embodiments of the present invention, the method of the embodiments of the present invention is further described in conjunction with a specific application example.

The wireless communication system to which the method of the embodiment of the present invention is applied may be an improvement based on GSM or LTE or other communication systems, which is not limited herein. The method of the embodiment of the present invention can be applied to any application that needs to improve the uplink coverage, for example, can be used in a complex building space, or a basement space, or a complex terrain. This specific application example is used for intelligent meter reading in a basement, and the wireless communication system is exemplified by a GAM-based system.

In this application example, the basic resource unit of the wireless communication system can be defined as a burst. A Burst may include a certain number, for example, 148 valid symbols. However, for the convenience of scheduling and the need for expansion, a Burst may include some symbols to achieve a suitable time domain length; for example, the time domain length of 1 Burst may be Equal to 156.25*Ts, Ts represents the time domain length of a symbol. A plurality of consecutive, for example, four Bursts can be defined as one block (Block). In this application scenario, the same Burst structure is used for the uplink and downlink. However, the Burst time domain lengths of the downlink carrier and the uplink subcarrier are different, and the Burst time domain lengths of the uplink subcarriers of different bandwidths are also different, but each uplink subcarrier is different. The Burst time domain length is an integer multiple of the Burst time domain length of the downlink carrier.

For example, the bandwidth of the downlink carrier is B _DL , and the bandwidth of the kth uplink subcarrier is

then,

Should be an integer. Taking the first uplink subcarrier represented by k=1 as an example, it can be recorded

The meaning is that the bandwidth of the downlink carrier is M1 times the bandwidth of the first uplink subcarrier. It is easy to understand that, correspondingly, the time domain length of the basic resource unit, such as Burst, in the first uplink subcarrier should be M1 times the time domain length of the basic resource unit Burst in the downlink carrier; M1 is an integer greater than or equal to 2.

In this application example, the resource structure diagram of the uplink and downlink of the wireless communication system may be as shown in FIG. 4 . In this system, the basic resource unit is Burst, and four consecutive Bursts form a block. Among them, part of Burst is not attributed to the block, but is scattered between the blocks and exists as an independent Burst. For example, in Figure 4, The downlink carrier includes consecutive Burst resources in the time domain, for example, including 12 blocks numbered 0-11, and 4 independent Burst numbers 0-3, wherein the independent Burst numbers 0-3 are respectively located at 2, 5, 8, 11 after the block. It should be noted that all the consecutive numbers of the downlink carriers and all the independent burst consecutive numbers; and all the consecutive numbers of the uplink subcarriers and all the independent burst consecutive numbers.

The downlink carrier in FIG. 4 can schedule two uplink subcarriers, that is, a first uplink subcarrier (UL carrier1) and a second uplink subcarrier (UL carrier2). The bandwidth of the two uplink subcarriers is 1/2 of the bandwidth of the downlink carrier, and the Burst length is twice the length of the downlink carrier Burst. Then there,

and,

Taking the first uplink subcarrier as an example, it includes 6 blocks numbered 0-5, and 2 independent Burst numbers 0-1, and 2 independent Bursts are located after the blocks numbered 2 and 5.

The resource allocation schemes of the uplink and downlink carriers are described in detail below, including:

1. The network side device divides the Block resource of the downlink carrier and the Burst resource into multiple downlink resource groups. Each downlink resource group of the downlink carrier may schedule one uplink subcarrier, that is, one downlink resource group corresponds to one uplink subcarrier. The corresponding relationship may be indicated by the resource allocation information sent by the network side device to the user equipment, that is, the uplink subcarrier and the downlink resource group indicated by the user in the resource allocation information are a set of corresponding uplink subcarriers and downlink resource groups.

The downlink resource component group method can include defining a set of blocks based on a starting block and a period, and defining a set of independent Bursts based on a starting independent Burst and period. The period is related to the carrier bandwidth. Since the bandwidth of the downlink carrier is a multiple of the bandwidth of the uplink subcarrier corresponding to the downlink resource group, the multiple can be used as the period. The user equipment knows in advance the bandwidth of each uplink subcarrier and the bandwidth of the downlink carrier, and thus the multiple can be calculated. Then, the indication message that the network side device sends the user equipment to indicate the downlink resource group may include only the number of the starting block, and the number of the starting independent Burst. E.g:

Taking the kth downlink resource group corresponding to the kth uplink subcarrier as an example, all numbers may be

Block, numbered

Independent Burst, divided into the kth downlink resource group, where k is a positive integer,

B _DL is the bandwidth of the downlink carrier,

Is the bandwidth of the kth uplink subcarrier, and B _DL is

Integer multiple. Taking the first resource group corresponding to the first uplink subcarrier as an example, that is: all numbers are

Block, numbered

The independent Burst is divided into the first downlink resource group. The Block and Burst resource allocation structure of the first uplink subcarrier is the same as the Block and Burst resource allocation structure of the first downlink resource group.

Taking FIG. 4 as an example, for the first downlink resource group of the first uplink subcarrier,

Since M1=2, according to the above formula, the blocks numbered 1, 3, 5, 7, 9, and 11 in the downlink carrier are allocated into the first downlink resource group, respectively corresponding to the number in the first uplink subcarrier. Blocks of 0-5;

Burst numbers

1 and 3 in the downlink carrier are allocated to the first downlink resource group, respectively corresponding to Burst numbered 0-1 in the first uplink subcarrier.

For the second downlink resource group of the second uplink subcarrier,

If M2=2, according to the above formula, the blocks numbered 0, 2, 4, 6, 8, and 10 in the downlink carrier are allocated to the second downlink resource group, respectively corresponding to the number in the second uplink subcarrier. Blocks of 0-5;

Burst numbers

0 and 2 in the downlink carrier are allocated to the second downlink resource group, respectively corresponding to Burst numbered 0-1 in the second uplink subcarrier.

The downlink resource component group method is to divide resources according to Block and Burst numbers. Since each Block and Burst corresponds to a certain time domain length, it can also be based directly on the starting block and the starting independent Burst, according to Block and The length of the time domain of Burst determines the length of a period, and the resource division includes: starting from the starting block, each block of the length of one cycle is divided into a downlink resource group; and, starting from the initial independent Burst, each interval An independent Burst of a period length is divided into a downlink resource group. For Block, the period length can be equal to

Indicates the time domain length of a block; for Burst, the length of the cycle can be equal to

Represents the time domain length from an independent Burst to the next adjacent independent Burst.

2. The UE receives the resource allocation information sent by the network side device, determines the allocated uplink subcarrier, and determines the downlink Block and burst resource group, that is, the downlink resource group.

The resource allocation information includes indication information of the first uplink subcarrier, and indication information of the first downlink resource group. For example, the indication information of the first uplink subcarrier may be a number of the first uplink subcarrier in multiple uplink subcarriers, for example, represented by a binary, which may be 01 or 10 or 11, etc.; indication information of the first downlink resource group. , may include the number of the starting block of the first downlink resource group

And the number of the starting independent Burst

3. The UE uses the first downlink resource group to receive downlink data, and uses the first uplink subcarrier to perform uplink data transmission. For example, the number of the first user equipment in the first downlink resource group is

The block receives the downlink data, and the number of the first uplink subcarrier is

The block transmits the uplink data, and the number of the first user equipment in the first downlink resource group is

Burst performs uplink data transmission, wherein

Indicates rounding down and m is a positive integer. It should be noted that the number here

with

Refers to the number in the entire downlink carrier. For example, as shown in FIG. 4, if the first user equipment receives downlink data in the Block numbered 3, the number of the first uplink subcarrier is

The block transmits uplink data.

In another way, it can be expressed as: the number of the network side device in the first downlink resource group is

Block or number is

The Burst sends the downlink data to the first user equipment, and receives the number sent by the first user equipment and carried in the first uplink subcarrier as

Block or number is

Upstream data in Burst, where

Indicates rounding down.

In the above example, the downlink transmission is performed first, and the numbers of the downlink Block and Burst are determined, and the corresponding uplink Block and Burst numbers are calculated, and the uplink transmission is performed at the corresponding position. It can be understood that the uplink transmission can also be performed first, and the numbers of the uplink Block and Burst are determined, and the corresponding downlink Block and Burst numbers are calculated, and the uplink transmission is performed at the corresponding position.

To help understand the technical solution of the present invention, the following describes the downlink resource group division method in the technical solution of the present invention with reference to FIG. 1 :

In FIG. 1, for the first downlink resource group of the first uplink subcarrier, the initial resource unit may be defined as 0, and the resource units numbered 0, 2, 4, and 6 are allocated into the first downlink resource group. Corresponding to the resource elements numbered 0, 1, 2, and 3 in the first uplink subcarrier, and the starting positions of the corresponding uplink resource unit and the downlink resource unit in each pair are the same.

For the second downlink resource group of the second uplink subcarrier, the initial resource unit may be defined as 1, and the resource units numbered 1, 5 are allocated into the second downlink resource group, respectively corresponding to the number in the first uplink subcarrier. A resource unit of 0, 1.

For the third downlink resource group of the third uplink subcarrier, the resource unit numbered 3 may be allocated to the third downlink resource group, corresponding to the resource unit numbered 0 in the first uplink subcarrier.

For the fourth downlink resource group of the fourth uplink subcarrier, the resource unit numbered 7 may be allocated to the fourth downlink resource group, corresponding to the resource unit numbered 0 in the fourth uplink subcarrier.

The application example of the present invention has been described in detail with reference to FIG. 4 and FIG. 1 .

It can be seen that, in some possible implementation manners of the present invention, a sum of bandwidths of the multiple uplink subcarriers of the wireless communication system is equal to a bandwidth of the downlink carrier, and a bandwidth of the downlink carrier is any one of the uplinks. An integer multiple of the bandwidth of the subcarrier; the method uses the time domain to divide the downlink carrier into multiple downlink resource groups, and respectively corresponding to multiple uplink subcarriers corresponding to the downlink carrier (or, respectively, for scheduling multiple uplink subcarriers) The technical solution that the user equipment performs data reception and transmission on the allocated downlink resource group and the uplink subcarrier respectively achieves the following beneficial effects:

In this solution, one downlink carrier may be configured with multiple uplink subcarriers, and each uplink subcarrier corresponds to one downlink resource group in the downlink carrier. For the user equipment, only the corresponding uplink subcarrier and downlink resource group are required. The data transmission and reception are performed, and the scheduling mode in the time domain is not required to be monitored. However, the scheduling information of multiple uplink carriers in the prior art is from the LTE system of the same downlink carrier, and the user equipment needs to be in the downlink carrier. Monitoring the time domain on all time domain resources, Compared with the LTE system, the present invention simplifies the scheduling mode and simplifies the resource allocation relationship. Since the user equipment does not need to dynamically monitor in any downlink carrier resources, the complexity of the user equipment is reduced, and the user is reduced. The power consumption of the device.

In order to better implement the above solution of the embodiments of the present invention, related devices for cooperating to implement the above solutions are also provided below.

Referring to FIG. 5, an embodiment of the present invention provides a user equipment 500, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to one downlink carrier. The bandwidth, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of the user equipments; and the user equipment 500 may include:

The first receiving module 510 is configured to receive the resource allocation information that is sent by the network side device, where the resource allocation information indicates that the user equipment uplink uses the first uplink subcarrier of the multiple uplink subcarriers, and the indication The user equipment downlink adopts a first downlink resource group, and the first downlink resource group is one of multiple downlink resource groups that divide the resources of the downlink carrier into time domains;

The second receiving module 520 is configured to receive downlink data by using the first downlink resource group; and

The sending module 530 is configured to send uplink data by using the first uplink subcarrier.

In some embodiments of the present invention, the first receiving module 510 is specifically configured to receive a downlink control channel DCCH signal sent by the network side device, and acquire resource allocation information carried in the DCCH signal, where the resource allocation information includes The indication information of the first uplink subcarrier and the indication information of the first downlink resource group.

In some embodiments of the present invention, the first receiving module 510 is further configured to receive a physical broadcast channel PBCH signal sent by the network side device, acquire uplink resource division information carried in the PBCH signal, and the uplink resource division information. And including a starting frequency point and a carrier bandwidth of each of the plurality of uplink subcarriers and a carrier number; and the indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.

In some embodiments of the present invention, the basic resource unit of the wireless communication system is a burst Burst, and a plurality of consecutive Bursts form a block block; the downlink carrier includes a block and an independent burst that does not belong to the block; The indication information of the row resource group includes: the number of the starting block of the first downlink resource group.

And the number of the starting independent Burst

Correspondingly, the first downlink resource group includes: the number is

Block, and numbered

Independent Burst, where k is a positive integer,

B _DL is the carrier bandwidth of the downlink resource,

Is the bandwidth of the first uplink subcarrier, and B _DL is

An integer multiple of the block; the block and burst resource allocation structure of the first uplink subcarrier is the same as the block and burst resource allocation structure of the first downlink resource group.

In some embodiments of the present invention, the second receiving module 520 is specifically configured to:

Block or number is

The Burst receives the downlink data; the sending module 530 is specifically configured to use the number of the first uplink subcarrier as

Block or number is

Burst sends uplink data, where

Indicates rounding down, m is a positive integer; all the blocks of the first uplink subcarrier are consecutively numbered and all independent burst consecutive numbers that do not belong to the block; the number

with

Refers to the number in the entire downlink carrier.

The user equipment in the embodiment of the present invention may be, for example, a mobile phone, a tablet computer or the like.

It is to be understood that the functions of the respective functional modules of the user equipment in the embodiments of the present invention may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, refer to the related description in the foregoing method embodiments, and details are not described herein again.

It can be seen that, in some feasible implementation manners of the present invention, a user equipment is provided, where the user equipment is used in a wireless communication system with different uplink and downlink resource granularities, and in the wireless communication system, the multiple uplinks The sum of the bandwidths of the carriers is equal to the bandwidth of the downlink carrier, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. The method uses the downlink carrier to be divided into multiple downlink resource groups according to the time domain. Corresponding to the multiple uplink subcarriers corresponding to the downlink carrier (or, respectively, for scheduling multiple uplink subcarriers corresponding to the downlink carrier), the user equipment performs data on the allocated downlink resource group and the uplink subcarrier respectively. The technical solutions for receiving and transmitting have achieved the following beneficial effects:

In this solution, one downlink carrier may schedule multiple uplink subcarriers, the bandwidth of the downlink carrier is equal to the sum of the bandwidths of the schedulable multiple uplink subcarriers, and the bandwidth of the downlink carrier is any one of the uplink subcarriers. An integer multiple of the bandwidth of the wave. In other words, the scheme reduces the uplink transmission bandwidth. Therefore, when the transmission power of the user equipment is constant, the PSD of the uplink transmission can be effectively improved, thereby effectively improving the coverage of the uplink transmission. ;

In this solution, one downlink carrier may be configured with multiple uplink subcarriers, and each uplink subcarrier corresponds to one downlink resource group in the downlink carrier. For the user equipment, only the corresponding uplink subcarrier and downlink resource group are required. The data transmission and reception are performed, and the scheduling mode in the time domain is not required to be monitored. However, the scheduling information of multiple uplink carriers in the prior art is from the LTE system of the same downlink carrier, and the user equipment needs to be in the downlink carrier. The scheduling mode on the time domain is monitored on all the time domain resources. It can be seen that compared with the LTE system, the present invention simplifies the scheduling mode and simplifies the resource allocation relationship; since the user equipment does not need to dynamically monitor in any downlink carrier resources, The complexity of the user equipment is reduced, and the power consumption of the user equipment is reduced.

Referring to FIG. 6, an embodiment of the present invention provides a network side device, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to one downlink carrier. Bandwidth, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of user equipments, where the multiple user equipments include the first user equipment; The network side device 600 includes:

The first sending module 610 is configured to send resource allocation information to the first user equipment, where the resource allocation information indicates that the first user equipment uplink adopts a first uplink subcarrier of the multiple uplink subcarriers, and Instructing the first user equipment to adopt a first downlink resource group in the downlink, where the first downlink resource group is one of multiple downlink resource groups that divide the resources of the downlink carrier into time domains;

The second sending module 620 is configured to send downlink data to the first user equipment by using the first downlink resource group; and

The receiving module 630 is configured to receive uplink data that is sent by the first user equipment by using the first uplink subcarrier.

In some embodiments of the present invention, the first sending module 620 is specifically configured to: send a downlink control channel DCCH signal carrying resource allocation information to the first user equipment, where the resource allocation information includes the first uplink sub- The indication information of the carrier, and the indication information of the first downlink resource group.

In some embodiments of the present invention, the first sending module 620 is further configured to: send a physical broadcast channel PBCH signal carrying the uplink resource partitioning information to the first user equipment, where the uplink resource partitioning information includes the multiple uplinks a starting frequency point and a carrier bandwidth of each uplink subcarrier and a carrier number; the indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.

And the number of the starting independent Burst

Correspondingly, the first downlink resource group includes: the number is

Block, and numbered

Independent Burst, where k is a positive integer,

B _DL is the carrier bandwidth of the downlink resource,

Is the bandwidth of the first uplink subcarrier, and B _DL is

In some embodiments of the present invention, the second sending module 620 is specifically configured to:

Block or number is

The Burst sends the downlink data to the first user equipment; the receiving module 630 is specifically configured to receive, by the first user equipment, the number carried in the first uplink subcarrier is

Block or number is

Upstream data in Burst, where

with

Refers to the number in the entire downlink carrier.

The network side device in the embodiment of the present invention may be, for example, a base station, a base station controller, or the like.

It can be understood that the functions of the respective functional modules of the network side device in the embodiment of the present invention may be specifically implemented according to the method in the foregoing method embodiment. For the specific implementation process, reference may be made to the related description in the foregoing method embodiments, and details are not described herein again.

It can be seen that, in some possible implementation manners of the present invention, a network side device is provided, where the network side device is used in a wireless communication system with different uplink and downlink resource granularities, where the multiple The sum of the bandwidths of the uplink subcarriers is equal to the bandwidth of the downlink carrier, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. The method uses the downlink carrier to be divided into multiple downlink resource groups according to the time domain. Corresponding to the multiple uplink subcarriers corresponding to the downlink carrier (or respectively, for scheduling multiple uplink subcarriers), the user equipment performs data reception and transmission on the allocated downlink resource group and uplink subcarrier respectively. The technical solution has achieved the following beneficial effects:

The embodiment of the present invention further provides a wireless communication system, in which the uplink and downlink resource granularities are different. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to a downlink carrier bandwidth, and The bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of user equipments, and the user equipment is a user equipment as described in the embodiment of FIG. The network side device is the network side device described in the embodiment of FIG. 6.

In the above, the embodiment of the present invention discloses a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of the multiple uplink subcarriers is equal to a bandwidth of the downlink carrier, and the The bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. The system uses the time domain to divide the downlink carrier into multiple downlink resource groups, which respectively correspond to multiple uplink subcarriers corresponding to the downlink carrier (or, The technical solutions for receiving and transmitting data on the allocated downlink resource group and the uplink subcarrier respectively are used to schedule multiple uplink subcarriers respectively, and the following beneficial effects are obtained:

As shown in FIG. 7, the embodiment of the present invention further provides a user equipment 700, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to one downlink. The bandwidth of the carrier, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of the user equipment; and the user equipment 700 may include: The 701, the receiver 702 and the transmitter 703; these components communicate via one or more communication buses or signal lines 705. among them:

The receiver 702 is configured to receive resource allocation information that is sent by the network side device, where the resource allocation information indicates that the user equipment uplink adopts a first uplink subcarrier of the multiple uplink subcarriers, and indicates the user The device downlink adopts a first downlink resource group, where the first downlink resource group is one of multiple downlink resource groups that divide the resources of the downlink carrier into time domains;

The processor 701 is configured to control, according to the indication of the resource allocation information, the transmitter 703 to receive downlink data by using the first downlink resource group, and to control the receiver 702 to adopt the first uplink subcarrier. Send upstream data.

In some embodiments of the present invention, the receiver 702 is specifically configured to receive a downlink control channel DCCH signal sent by the network side device.

The processor 701 is further configured to acquire resource allocation information that is carried in the DCCH signal, where the resource allocation information includes indication information of the first uplink subcarrier, and an indication of the first downlink resource group. information.

In some embodiments of the present invention, the receiver 703 is further configured to receive a physical broadcast channel PBCH signal sent by the network side device;

The processor 701 is further configured to acquire uplink resource partitioning information carried in the PBCH signal, where the uplink resource partitioning information includes a starting frequency point and a carrier of each uplink subcarrier of the multiple uplink subcarriers. The indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.

And the number of the starting independent Burst

Correspondingly, the first downlink resource group includes: the number is

Block, and numbered

Independent Burst, where k is a positive integer,

B _DL is the carrier bandwidth of the downlink resource,

Is the bandwidth of the first uplink subcarrier, and B _DL is

In some embodiments of the present invention, the processor 701 is further configured to: if the receiver 702 is in the first downlink resource group, the number is

Block or number is

After receiving the downlink data, the control transmitter 703 is numbered in the first uplink subcarrier.

Block or number is

Burst sends uplink data, where

with

Refers to the number in the entire downlink carrier.

Taking a mobile phone as an example, the user equipment may further include: a memory, a peripheral interface, an RF circuit, an audio circuit, a speaker, a power management chip, an input/output (I/O) subsystem, other input/control devices, and an external port. These components communicate via the 705 communication bus or signal line.

In this solution, one downlink carrier may schedule multiple uplink subcarriers, the bandwidth of the downlink carrier is equal to the sum of bandwidths of the schedulable multiple uplink subcarriers, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers. In other words, the scheme reduces the uplink transmission bandwidth and, therefore, is set by the user. When the transmission power of the backup is unchanged, the PSD of the uplink transmission can be effectively improved, thereby effectively improving the coverage of the uplink transmission;

As shown in FIG. 8, the embodiment of the present invention further provides a network side device 800, which is used in a wireless communication system with different uplink and downlink resource granularities. In the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to one. The bandwidth of the downlink carrier, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of user equipments, and the plurality of user equipments include the first user The network side device 800 can include a processor 801, a receiver 802, and a transmitter 803; these components communicate via one or more communication buses or signal lines 805. among them:

The processor 801 is configured to control the transmitter 803 to send the resource allocation information to the first user equipment, where the resource allocation information indicates that the first user equipment uplink uses the first uplink subcarrier of the multiple uplink subcarriers. And indicating that the first user equipment downlink adopts a first downlink resource group, where the first downlink resource group is one of multiple downlink resource groups that divide the resources of the downlink carrier into time domains;

The processor 801 is further configured to control the transmitter 803 to use the first downlink resource group to send downlink data to the first user equipment, and the control receiver 802 to receive the first user equipment by using the The uplink data sent by the first uplink subcarrier.

In some embodiments of the present invention, the processor 801 is specifically configured to: the control transmitter 803 sends a downlink control channel DCCH signal carrying the resource allocation information to the first user equipment, where the resource allocation information includes the first The indication information of the uplink subcarrier and the indication information of the first downlink resource group.

In some embodiments of the present invention, the processor 801 is further configured to: control the transmitter 803 to send a physical broadcast channel PBCH signal carrying the uplink resource partitioning information to the first user equipment, where the uplink resource partitioning information includes the multiple The starting frequency point and the carrier bandwidth of each of the uplink subcarriers and the carrier number; the indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.

And the number of the starting independent Burst

Correspondingly, the first downlink resource group includes: the number is

Block, and numbered

Independent Burst, where k is a positive integer,

B _DL is the carrier bandwidth of the downlink resource,

Is the bandwidth of the first uplink subcarrier, and B _DL is

In some embodiments of the present invention, the processor 801 is further configured to: control, by the sender 803, that the number of the first downlink resource group is

Block or number is

The Burst sends the downlink data to the first user equipment; and the control receiver 802 receives the number sent by the first user equipment and carried in the first uplink subcarrier as

Block or number is

Upstream data in Burst, where

with

Refers to the number in the entire downlink carrier.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment can be referred to the related description of other embodiments.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not described. The order is limited because certain steps may be performed in other orders or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: ROM, RAM, disk or CD.

The resource allocation and data transmission method, device and system provided by the embodiments of the present invention are described in detail. The principles and implementation manners of the present invention are described in the following. The description of the above embodiments is only for helping. The method of the present invention and its core idea are understood; at the same time, for those skilled in the art, according to the idea of the present invention, there are changes in the specific embodiments and application scopes. It should be understood that the invention is limited.

Claims

A resource allocation and data transmission method, characterized in that, for a wireless communication system with different uplink and downlink resource granularities, in the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to a downlink carrier bandwidth, and The bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and multiple user equipments, and the multiple user equipments include a first user equipment; :

The first user equipment receives the resource allocation information sent by the network side device, where the resource allocation information indicates that the first user equipment uplink uses the first uplink subcarrier of the multiple uplink subcarriers, and the indication station The first user equipment downlink adopts a first downlink resource group, and the first downlink resource group is one of multiple downlink resource groups that divide the resources of the downlink carrier into time domains;

The first user equipment receives downlink data by using the first downlink resource group, and sends uplink data by using the first uplink subcarrier.
The method according to claim 1, wherein the receiving, by the first user equipment, the resource allocation information sent by the network side device comprises:

The first user equipment receives the downlink control channel DCCH signal sent by the network side device, and acquires resource allocation information carried in the DCCH signal, where the resource allocation information includes indication information of the first uplink subcarrier, And indication information of the first downlink resource group.
The method according to claim 2, wherein before the first user equipment receives the resource allocation information sent by the network side device, the method further includes:

The first user equipment receives the physical broadcast channel PBCH signal sent by the network side device, and acquires uplink resource partition information carried in the PBCH signal, where the uplink resource partition information includes each of the multiple uplink subcarriers. The starting frequency of the uplink subcarrier and the carrier bandwidth and the carrier number; the indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.
Method according to claim 2 or 3, characterized in that

The basic resource unit of the wireless communication system is a burst Burst, and a plurality of consecutive Bursts form a block block; the downlink carrier includes a block and an independent burst that does not belong to the block;

The indication information of the first downlink resource group includes: a number of a starting block of the first downlink resource group.
And the number of the starting independent Burst
The method according to claim 4, wherein the first user equipment receives the downlink data by using the first downlink resource group, and the sending the uplink data by using the first uplink subcarrier includes: The number of the user equipment in the first downlink resource group is
Block or number is
The Burst receives the downlink data, and the number of the first uplink subcarrier is
Block or number is
Burst sends uplink data, where
Indicates rounding down and m is a positive integer.
A resource allocation and data transmission method, characterized in that, for a wireless communication system with different uplink and downlink resource granularities, in the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to a downlink carrier bandwidth, and The bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and multiple user equipments, and the multiple user equipments include a first user equipment; :

The network side device sends resource allocation information to the first user equipment, where the resource allocation information indicates that the first user equipment uplink uses a first uplink subcarrier of the multiple uplink subcarriers, and indicates the The first user equipment group adopts a first downlink resource group, and the first downlink resource group is one of a plurality of downlink resource groups that divide the resources of the downlink carrier according to a time domain;

And transmitting, by the first downlink resource group, downlink data to the first user equipment, and receiving uplink data sent by the first user equipment by using the first uplink subcarrier.
The method according to claim 6, wherein the sending, by the network side device, the resource allocation information to the first user equipment comprises:

The network side device sends a downlink control channel DCCH signal carrying resource allocation information to the first user equipment, where the resource allocation information includes indication information of the first uplink subcarrier, and the first downlink resource Group of instructions.
The method according to claim 7, wherein before the network side device sends the resource allocation information to the first user equipment, the method further includes:

Transmitting, by the network side device, a physical broadcast channel PBCH signal carrying uplink resource division information to the first user equipment, where the uplink resource partition information includes each of the multiple uplink subcarriers The starting frequency and carrier bandwidth of the uplink subcarrier and the carrier number;

The indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.
Method according to claim 7 or 8, characterized in that

The basic resource unit of the wireless communication system is a burst Burst, and a plurality of consecutive Bursts form a block block; the downlink carrier includes a block and an independent burst that does not belong to the block;

The indication information of the first downlink resource group includes: a number of a starting block of the first downlink resource group.
And the number of the starting independent Burst
The method according to claim 9, wherein the first downlink resource group is used to send downlink data to the first user equipment, and the first user equipment is received by the first uplink. The uplink data sent by the subcarrier includes:

The number of the first downlink resource group is
Block or number is
The Burst sends the downlink data to the first user equipment, and receives the number that is sent by the first user equipment and is carried in the first uplink subcarrier.
Block or number is
Upstream data in Burst, where
Indicates rounding down and m is a positive integer.
A user equipment, characterized in that, for a wireless communication system with different uplink and downlink resource granularities, in the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to a bandwidth of one downlink carrier, and the downlink carrier The bandwidth is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of the user equipments; the user equipment includes:

a first receiving module, configured to receive resource allocation information sent by the network side device, where the resource allocation information indicates that the user equipment uplink adopts a first uplink subcarrier of the multiple uplink subcarriers, and indicates the The user equipment downlink adopts a first downlink resource group, where the first downlink resource group is one of multiple downlink resource groups that divide the resources of the downlink carrier into time domains;

a second receiving module, configured to receive downlink data by using the first downlink resource group;

And a sending module, configured to send uplink data by using the first uplink subcarrier.
The device according to claim 11 wherein:

The first receiving module is configured to receive a downlink control channel DCCH signal sent by the network side device, and acquire resource allocation information carried in the DCCH signal, where the resource allocation information is The indication information of the first uplink subcarrier and the indication information of the first downlink resource group are included therein.
The method of claim 12 wherein:

The first receiving module is further configured to receive a physical broadcast channel PBCH signal sent by the network side device, and acquire uplink resource division information carried in the PBCH signal, where the uplink resource partitioning information includes the multiple uplink subcarriers The starting frequency point and the carrier bandwidth of each uplink subcarrier and the carrier number; the indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.
Device according to claim 12 or 13, characterized in that

The basic resource unit of the wireless communication system is a burst Burst, and a plurality of consecutive Bursts form a block block; the downlink carrier includes a block and an independent burst that does not belong to the block;

The indication information of the first downlink resource group includes: a number of a starting block of the first downlink resource group.
And the number of the starting independent Burst
The device of claim 14 wherein:

The second receiving module is specifically configured to use the number of the first downlink resource group as
Block or number is
Burst receives downlink data;

The sending module is specifically configured to: the number of the first uplink subcarrier is
Block or number is
Burst sends uplink data, where
Indicates rounding down and m is a positive integer.
A network side device, characterized in that, for a wireless communication system with different uplink and downlink resource granularities, in the wireless communication system, a sum of bandwidths of multiple uplink subcarriers is equal to a downlink carrier bandwidth, and the downlink is The bandwidth of the carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; the wireless communication system includes a network side device and a plurality of user equipments, and the plurality of user equipments include the first user equipment;

a first sending module, configured to send resource allocation information to the first user equipment, where the resource allocation information indicates that the first user equipment uplink uses a first one of the multiple uplink subcarriers a carrier, and indicating that the first user equipment downlink adopts a first downlink resource group, where the first downlink resource group is one of a plurality of downlink resource groups that divide the resources of the downlink carrier into time domains;

a second sending module, configured to send downlink data to the first user equipment by using the first downlink resource group; and

The receiving module is configured to receive uplink data that is sent by the first user equipment by using the first uplink subcarrier.
The device of claim 16 wherein:

The first sending module is specifically configured to send a downlink control channel DCCH signal carrying resource allocation information to the first user equipment, where the resource allocation information includes indication information of the first uplink subcarrier, and the An indication of a downlink resource group.
The device according to claim 17, wherein

The first sending module is further configured to send a physical broadcast channel PBCH signal that carries the uplink resource partitioning information to the first user equipment, where the uplink resource partitioning information includes each uplink subcarrier of the multiple uplink subcarriers. Starting frequency and carrier bandwidth and carrier number;

The indication information of the first uplink subcarrier includes: a carrier number of the first uplink subcarrier.
Device according to claim 17 or 18, characterized in that

The basic resource unit of the wireless communication system is a burst Burst, and a plurality of consecutive Bursts form a block block; the downlink carrier includes a block and an independent burst that does not belong to the block;

The indication information of the first downlink resource group includes: a number of a starting block of the first downlink resource group.
And the number of the starting independent Burst
The device according to claim 19, characterized in that

The second sending module is specifically configured to use the number of the first downlink resource group as
Block or number is
Burst sends downlink data to the first user equipment;

The receiving module is specifically configured to receive, by the first user equipment, a number carried in the first uplink subcarrier as
Block or number is
Upstream data in Burst, where
Indicates rounding down and m is a positive integer.
A wireless communication system, characterized in that the wireless communication system has uplink and downlink resources The source granularity is different. In the wireless communication system, the sum of the bandwidths of the multiple uplink subcarriers is equal to the bandwidth of one downlink carrier, and the bandwidth of the downlink carrier is an integer multiple of the bandwidth of any one of the uplink subcarriers; The communication system includes a network side device and a plurality of user devices, the user device being the user device according to any one of claims 11 to 15, the network side device being any one of claims 16 to 20. Network side device.