WO2013123814A1

WO2013123814A1 - Method, system and device for achieving multicarrier in relay transmission system

Info

Publication number: WO2013123814A1
Application number: PCT/CN2012/087329
Authority: WO
Inventors: 刘建军; 闫渊; 沈晓冬; 杨宁; 韩璐; 刘光毅
Original assignee: 中国移动通信集团公司
Priority date: 2012-02-24
Filing date: 2012-12-24
Publication date: 2013-08-29
Also published as: CN103297210A

Abstract

Disclosed are a method, system and device for achieving multicarrier in a relay transmission system. A relay device can determine load information about itself and report same to a base station in a relay transmission system. The base station further determines at least one component carrier for bearing a load corresponding to the load information according to the obtained load information, and sends the carrier information about the determined at least one component carrier to the relay device, and the relay device can perform carrier configuration according to the carrier information sent by the base station. According to the technical solution, a base station can distribute at least one component carrier for bearing a load corresponding to the load information about a relay device to the relay device according to the load information about the relay device, thereby being able to increase the system capacity of a relay transmission system through at least one component carrier user service.

Description

Multi-carrier implementation method, system and device in relay transmission system The application claims to be submitted to the Chinese Patent Office on February 24, 2012, the application number is 201210046662.3, and the invention name is

The priority of the Chinese Patent Application for "Multi-Carrier Implementation Method, System, and Apparatus in a Relay Transmission System" is incorporated herein by reference. TECHNICAL FIELD The present invention relates to the field of wireless communication technologies, and in particular, to a multi-carrier implementation method, system, and apparatus in a relay transmission system. BACKGROUND OF THE INVENTION In order to cope with various complex wireless propagation environments and solve the problem of future Long Term Evolution (LTE) network deployment coverage, the 3rd Generation Partnership Project (3GPP) is in the LTE-Advanced R10 (long-term) In the upgraded version 10), the relay (ie, Relay) is standardized in the protocol.

1 shows a schematic diagram of a relay transmission system including a relay device. As shown in FIG. 1, a direct transmission between a base station and a terminal is performed by adding a relay device between a base station and a terminal (generally referred to as a user terminal). The link is divided into two links: - The segment link is the radio link between the base station and the relay device, the segment link is called the backhaul link, and the other link is between the relay device and the terminal. The wireless link, this segment of the link is called the access link. Currently, the relay mode is generally classified into an inband relay (ie, an Inband Relay) and an outband relay (ie, an outband relay). In the inband relay mode, the backhaul link and the access link are in the same frequency band. Data is transmitted within the resource and time division multiplexed. In the outband relay mode, the backhaul link and the access link transmit data in different frequency bands and are frequency division multiplexed.

Based on the relay transmission system shown in FIG. 1, the two links obtained by deploying the relay device in the network can have a shorter propagation distance than the direct transmission link, and the obstructions in the propagation path can also be reduced. , so that the split two links have better wireless propagation conditions and higher transmission capacity than the direct transmission link. The relay device can provide wireless backhaul function, which is difficult to reach in some fiber-optic or wired-backhaul scenarios, such as indoor office environment without room allocation, residential building with fiber-free access, and urban area without cable return. 4 Covering scenes, remote suburbs or rural areas, etc., by introducing a relay device with wireless backhaul function, it can effectively expand network coverage and enhance coverage signals.

As mentioned above, the relay transmission system can extend the network coverage and enhance the coverage signal. Therefore, the introduction of the relay device in the transmission network is an important direction for future network deployment. How to improve the performance of the relay transmission network has also become a network research. A focus. At present, the backhaul link in the relay transmission system is generally configured with one carrier to carry data. As the number of users increases and the service demand increases, the relay transmission system may have the following problems:

FIG. 2 is a schematic diagram showing a specific application scenario of a relay transmission system, as shown in FIG. 2, the relay transmission system The relay device 1 and the relay device 2 are deployed in the system, wherein there is a backhaul link between the base station and the relay device 1, and a backhaul link 2 exists between the base station and the relay device 2, and the relay device 1 The user of the bearer includes the User Equipment (UE) 11, the UE12, the UE13, the UE14, and the UE15. The user carried by the relay device 1 includes the UE21 and the UE22. The base station and the UE31 have a direct link. The UE connected to the relay device is called a relay UE, and the UE directly connected to the base station is called a direct connection UE. Based on the application scenario shown in FIG. 2, the number of UEs carried by the relay devices in the relay transmission system is generally different, and the number of UEs that are distributed in the user's distributed evacuation area is generally small, and is distributed among users. A relay device in a dense area generally has a large number of UEs, and depending on the channel shield size and service type, the requirements of each UE for resource scheduling may also be different. Therefore, it is difficult to meet the actual service requirements by allocating a carrier resource on the backhaul link. The limited capacity of the backhaul link will become the main bottleneck limiting the throughput and transmission performance of the relay transmission system. Following the system capacity of the transmission system is a technical problem that needs to be solved at present. SUMMARY OF THE INVENTION In view of this, embodiments of the present invention provide a method, system, and apparatus for implementing a multi-carrier in a relay transmission system, which can improve the system capacity of the relay transmission system.

The embodiment of the invention is implemented by the following technical solutions:

According to an aspect of the embodiments of the present invention, a method for implementing a multi-carrier in a relay transmission system includes: acquiring, by a base station, load information of a relay device in a relay transmission system;

Determining, according to the acquired load information, at least one component carrier for carrying a load corresponding to the load information;

And transmitting the determined carrier information of the at least one component carrier to the relay device for carrier configuration. According to an aspect of the embodiments of the present invention, a multi-carrier implementation method in a relay transmission system is further provided, including:

The relay device determines its own load information, and reports the load information to the base station in the relay transmission system;

Receiving, by the base station, carrier information of the at least one component carrier for carrying the load corresponding to the load information, according to the load information, and performing carrier configuration according to the carrier information.

According to an aspect of the embodiments of the present invention, a multi-carrier implementation method in a relay transmission system is further provided, including:

After the base station acquires load information of the relay device in the relay transmission system, the base station obtains the load information according to the acquired Determining at least one component carrier for carrying the load corresponding to the load information, and transmitting the determined carrier information of the at least one component carrier to the relay device;

The relay device receives the carrier information sent by the base station, and performs carrier configuration according to the carrier information.

According to an aspect of an embodiment of the present invention, a multi-carrier implementation system in a relay transmission system is further provided, including: a relay device and a base station;

The relay device is configured to determine its own load information, and send the load information to the base station in the relay transmission system; and receive carrier information sent by the base station, and according to the Carrier information is used for carrier configuration;

After the base station is configured to acquire the load information of the relay device in the relay transmission system, determine, according to the acquired load information, at least one component carrier for carrying the load corresponding to the load information, and determine the The carrier information of the at least one component carrier is sent to the relay device.

According to an aspect of an embodiment of the present invention, a multi-carrier implementation apparatus in a relay transmission system is further provided, including:

a load information obtaining unit, configured to acquire load information of a relay device in a relay transmission system, and a component carrier determining unit, configured to determine, according to the load information acquired by the load information acquiring unit, a bearer At least one component carrier of the load corresponding to the load information;

And a sending unit, configured to send carrier information of the at least one component carrier determined by the component carrier determining unit to the relay device for carrier configuration.

The load information determining and the upper unit are used to determine the load information of the load information, and the load information is sent to the base station in the relay transmission system;

a carrier information receiving unit, configured to receive, according to the load information, the carrier information of the at least one component carrier that is used to carry the load corresponding to the load information, according to the load information determined by the load information;

And a configuration unit, configured to perform carrier configuration according to the carrier information received by the carrier information receiving unit. With the above at least one technical solution provided by the embodiment of the present invention, the relay device can determine its own load information, and report the load information to the base station in the relay transmission system, and the base station further determines, according to the acquired load information, the bearer load. At least one component carrier of the load corresponding to the information, and transmitting the determined carrier information of the at least one component carrier to the relay device, where the relay device can perform carrier configuration according to the carrier information sent by the base station. According to the technical solution, the base station can allocate at least one component carrier for carrying the load corresponding to the load information of the relay device to the relay device according to the load information of the relay device, so that the user service can be carried by the at least one carrier, thereby improving The system capacity of the relay transmission system. Other features and advantages of the invention will be set forth in the description which follows, and The objectives and other advantages of the invention will be realized and attained by the <RTI The drawings are intended to provide a further understanding of the invention, and are intended to be a In the drawing:

1 is a schematic diagram of a relay transmission system including a relay device provided by the background art;

2 is a schematic diagram of a specific application scenario of a relay transmission system provided by the background technology;

FIG. 3 is a schematic diagram of a relay transmission system to which a multi-carrier implementation method is provided according to Embodiment 1 of the present invention; FIG. 4 is a schematic flowchart diagram of implementing a multi-carrier scheme based on the relay transmission system shown in FIG. 3 according to Embodiment 1 of the present invention; ;

FIG. 5 is a schematic flowchart of determining, by a base station 301, a component carrier for carrying a load corresponding to load information of a relay device 302 according to a subframe configuration manner corresponding to a backhaul link according to Embodiment 1 of the present invention;

6 is a relay device 302 according to Embodiment 2 of the present invention, based on received carrier information, for a carried terminal

303 is a schematic flow chart of allocating component carriers;

FIG. 7 is a schematic flowchart of a base station 301 for allocating component carriers to a directly connected terminal according to Embodiment 3 of the present invention; FIG. 8 is a schematic diagram showing a logical structure of a multi-carrier implementation apparatus in a relay transmission system according to Embodiment 4 of the present invention; A logical structure diagram of a multi-carrier implementation apparatus in a relay transmission system according to Embodiment 5 of the present invention;

10 is a schematic diagram of still another logical structure of a multi-carrier implementation apparatus in a relay transmission system according to Embodiment 5 of the present invention;

FIG. 11 is a schematic diagram of a multi-carrier implementation system in a relay transmission system according to Embodiment 6 of the present invention; FIG. 12 is still another schematic diagram of a multi-carrier implementation system in a relay transmission system according to Embodiment 6 of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to provide an implementation scheme for improving the system capacity of a relay transmission system, an embodiment of the present invention provides a multi-carrier implementation method, system, and apparatus in a relay transmission system, and the following is a preferred embodiment of the present invention with reference to the accompanying drawings. The preferred embodiments are described herein for illustrative purposes only and are not intended to limit the invention. And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Embodiment 1

Embodiment 1 of the present invention provides a multi-carrier implementation method in a relay transmission system, where the method provides The process can implement multi-carrier allocation in the relay transmission system, thereby improving the system capacity of the relay transmission system. FIG. 3 is a schematic diagram of a relay transmission system to which the multi-carrier implementation method provided in the first embodiment is applicable, where the relay transmission system includes:

The base station 301, the relay device 302, and the terminal 303 connected to the relay 302, wherein two relays 302 are given as an example. In an actual application, the relay transmission system may include more relay devices according to actual needs. 302; Each relay 302 carries two terminals 303 as an example. In an actual application, each relay 302 can carry more terminals 303.

FIG. 4 is a schematic flowchart of implementing a multi-carrier scheme based on the relay transmission system shown in FIG. 3. Specifically, implementing a multi-carrier scheme in a relay transmission system mainly includes the following steps:

Step 401: Each terminal 303 carried by the relay device reports its own load information to the connected relay device 302.

In the step 401, the terminal 303 refers to a relay terminal, that is, a terminal that is connected to the relay device 302 and that communicates with the base station 301 through the relay device 302. The load information of the terminal generally includes data transmission rate information and/or transmission data volume information corresponding to the service implemented by the terminal. Specifically, the data transmission rate information and/or the transmission data volume information may be determined according to the service type of the implemented service. Preferably, the load information may further include a service type identifier to determine a priority of the service. If the resource is limited, the priority information may be preferentially allocated to the terminal with a higher priority to implement the service. .

Step 402: After the load information reported by each terminal 303 carried by the relay device 302 is respectively reported, the load information of the terminal 303 is determined according to the load information of each terminal 303.

In the step 402, the relay device 302 estimates the load information of the terminal 303 based on the load information of each terminal 303. Preferably, the relay device 302 can determine the total load information of the load information of each terminal 303 as its own load information. In order to meet the load requirements of each terminal 303, the utilization of resources is improved.

Step 403: The relay device 302 reports its own load information to the base station 301 in the relay transmission system. In the step 403, the relay device 302 can report the load information by using the communication connection with the base station. Preferably, the relay device 302 can pass the load information to the PUSCH (Physical Uplink Shared Channel) of the specific component carrier. Or the PUCCH (Physical Uplink Control Channel) of the primary carrier is reported to the base station 301 in the relay transmission system.

The above-mentioned step 402 and the step 403 may be performed by the relay device 302, that is, the self-loading information is actively determined and reported to the base station 301, or may be passively executed, that is, the base station 301 instructs the relay device to report the load information, and the relay device 302 After receiving the indication, the self-load information is determined and sent to the base station 301.

Step 404: After acquiring the load information of the relay device 302, the base station 301 determines, according to the acquired load information, at least one component carrier used to carry the load corresponding to the load information.

In step 404, after the base station 301 acquires the load information of each relay device 302, it sets for each relay. The device 302 determines, according to the load information of the relay device 302, at least one component carrier for carrying the load corresponding to the load information.

Step 405: The base station 301 sends the carrier information of the component carrier determined by the relay device 302 to the corresponding relay device 301.

In step 405, the base station 301 transmits the carrier information of the component carrier determined for each relay device 302 to the corresponding relay device 302. Specifically, when transmitting the carrier information to each of the relay devices 302, the base station 301 can transmit the carrier information through a communication connection with the relay device 302. Preferably, the base station 301 can transmit the high-level signaling to the relay device 302. The carrier information is transmitted, for example, the carrier information is transmitted to the relay device 302 by RNC (Radio Network Controller) signaling.

Step 406: After receiving the carrier information sent by the base station, the relay device 302 performs carrier configuration according to the carrier information. In the step 406, the relay device 302 performs carrier configuration according to the carrier information, that is, according to the carrier identifier and the carrier configuration information included in the carrier information, and performs corresponding configuration, such as adding a carrier, deleting a carrier, or modifying a carrier. The carrier configuration information generally includes information such as a frequency point corresponding to the carrier.

So far, the flow of implementing the multi-carrier scheme in the relay transmission system ends.

In step 402 of the corresponding process of FIG. 4, the load information of the relay device 302 is mainly based on the terminals that are carried.

The load information of the 303 is determined. It should be understood that the manner in which the relay device 302 determines the load information according to the load information of each terminal 303 is only a preferred implementation manner of the present invention. In actual application, the load information of the relay device 302 is used. It can also be determined in other ways, for example:

The first step is that the load information of the relay device 302 is determined according to the traffic statistics of the area where the relay device 302 is located. For example, the relay device 302 located in the user-distributed area may carry a larger number of user terminals. It is determined that the load information corresponding to the relay device 302 is large. For the relay device 302 located in the sparsely distributed area of the user, a smaller number of user terminals may be carried, and the load information corresponding to the relay device 302 may be determined to be small. In a specific implementation, the correspondence between the number of users and the load information may be set, and the load information corresponding to the relay device 302 is determined according to the corresponding relationship and the actual number of users distributed in the area where the relay device 302 is located.

In the second mode, the load information of the relay device 302 is determined according to the service type carried by the relay device 302. For example, according to the data volume corresponding to the service type carried by the relay device 302 or/and the required data transmission rate, The load information corresponding to the relay device 302 is determined.

It should be understood that the above manners 1 and 2 are only preferred embodiments for determining the load information of the relay device 302. In actual applications, other methods may be used for determining, and are not enumerated here. If the load information of the relay device 302 is not determined according to the load information of each terminal 303, the corresponding step 401 may not be performed in the corresponding process of FIG.

In the step 404 of the corresponding process, the base station 301, when determining the component carrier for the relay device 302, first determines, according to the load information of the relay device 302, the resource required to carry the load corresponding to the load information, and determines according to the The outgoing resource allocates a component carrier corresponding to the resource. Preferably, if the load information reported by the relay device 302 includes data transmission rate information and/or transmission data volume information, the base station 301 may determine, according to the load information, that the bearer capability satisfies the information according to the data transmission rate and/or the data volume. At least one component carrier of the determined bearer capability.

More preferably, when the base station 301 determines at least one component carrier for carrying the load corresponding to the load information according to the load information of the relay device 302, the base station 301 may further refer to the subframe configuration manner corresponding to the backhaul link, and FIG. A schematic diagram of determining, by the base station 301, a component carrier for carrying a load corresponding to the load information of the relay device 302, with reference to the subframe configuration manner corresponding to the backhaul link, as shown in FIG. 5, mainly includes the following steps:

Step 501: The base station 301 determines a subframe configuration manner corresponding to the backhaul link between the relay device 302. In the step 501, the base station 301 determines the subframe configuration mode corresponding to the backhaul link according to the configuration information configured when the link is established.

Step 502: The base station 301 determines, according to the acquired load information of the relay device, at least one component carrier used to carry the load corresponding to the load information in a subframe configuration manner corresponding to the backhaul link.

In the step 502, the base station 301 can determine at least one component carrier for carrying the load corresponding to the load information in a subframe configuration mode corresponding to the relay backhaul link, for example, when a component is used. When the subframe configuration capacity of the carrier backhaul link is sufficient to support the maximum load required by the relay device in the semi-static configuration period, the base station 301 can configure one component carrier for the backhaul link; when a component carrier is transmitted back When the subframe configuration capacity corresponding to the link is insufficient to support the maximum load required by the relay device in the semi-static configuration period, the base station 301 can increase the configuration of the backhaul link according to the maximum load required by the relay device in the semi-static configuration period. One or more component carriers.

So far, the base station 301 determines the end of the process of the component carrier with reference to the subframe configuration mode.

According to the foregoing method, for a UE under the relay device, the component carrier allocation of the access link and the carrier allocation of the corresponding backhaul link may be consistent (in-band mode). For example, in FIG. 2, UE11 returns The transmission link assigns the carrier CC1, the UE12 returns the link assignment carrier CC1 + CC2, the UE 11 accesses the link assignment carrier CC1, and the UE12 accesses the link assignment carrier CC1 + CC2; for a UE under the relay device, The component carrier allocation of the access link and the carrier allocation of the corresponding backhaul link may also be different (out-of-band mode). For example, in FIG. 2, UE11 returns a link assignment carrier CC2, and UE 12 returns a link assignment. The carrier CCl + CC2 , the UE 11 accesses the link assignment carrier CC1, and the UE 12 accesses the link assignment carrier CCl + CC2.

With the foregoing process provided by the first embodiment of the present invention, the base station can allocate at least one component carrier for carrying the load corresponding to the load information of the relay device to the relay device according to the load information of the relay device, so that at least one component can be passed. The carrier carries the user service and improves the system capacity of the relay transmission system.

With the above-mentioned procedure provided by the first embodiment of the present invention, CA (Carrier Aggregation) technology is implemented in the relay transmission system by allocating at least one component carrier for the relay device, and the CA technology is the LTE-Advanced system Rel- The enhanced technology defined by 10, by allocating multiple CCs (Component Carriers) to users, aggregates scattered spectrum resources to provide higher transmission bandwidth and service shield for the terminal. One In the normal case, when a RRC connection is initially established for a terminal, a serving cell (ie, Pcell) is configured for the terminal, and a carrier in the serving cell is called a primary component carrier (ie, a PCC), and a plurality of additional terminals may be configured for the terminal. A serving cell (ie, Scell), the carrier in this serving cell is called a second component carrier (SCC).

Embodiment 2

The second embodiment provides an optimization scheme for the multi-carrier implementation method in the relay transmission system provided in the first embodiment. In the second embodiment, on the basis of the first embodiment, the relay device 302 can further The bearer terminal 303 allocates component carriers to optimize the carrier configuration on the access link.

In the second embodiment, in step 406 of the first embodiment of FIG. 4, after receiving the carrier information sent by the base station 301, the relay device 302 may further allocate a component carrier to the carried terminal 303 based on the received carrier information. .

FIG. 6 is a schematic diagram of a process in which the relay device 302 allocates component carriers to the carried terminal 303 based on the received carrier information. As shown in FIG. 6, the method mainly includes the following steps:

Step 601: The relay device 302 determines, according to the load information of each terminal 303, the component carrier of the load corresponding to the load information of each terminal 303, respectively, from the carrier corresponding to the carrier information of the received component carrier.

In the step 601, the relay device 302 allocates a component carrier according to the load information of the terminal 303, and the basic principle of the base station 301 assigning a component carrier to the relay device 302 according to the load information of the relay device 302 in the above step 404. For the specific determination process, refer to the related description of step 404 in the foregoing Embodiment 1, and details are not described herein again.

Step 602: The relay device 302 sends the carrier information of the component carrier for the load corresponding to the load information of each terminal 303 to the corresponding terminal 303.

In the step 602, when the relay device 302 sends the carrier information to the terminal 303, the carrier information can be sent through the communication connection with the terminal 303. Preferably, the relay device 302 can send the carrier information to the terminal 303 through the high layer signaling. For example, carrier information is transmitted to the terminal 303 through RNC signaling.

Step 603: The terminal 303 performs carrier configuration according to the carrier information sent by the relay device 302.

In the step 603, the terminal 303 performs carrier configuration according to the carrier information sent by the relay device 302, that is, according to the carrier identifier and the carrier configuration information included in the carrier information, and performs corresponding configuration, such as adding a carrier, deleting a carrier, or modifying a carrier. The carrier configuration information generally includes information such as a frequency point corresponding to the carrier.

So far, the flow of the relay device 302 to allocate the component carrier to the carried terminal 303 based on the received carrier information ends.

Preferably, in the foregoing step 601, the relay device 302 determines, from the carrier corresponding to the carrier information of the received component carrier, a component carrier for carrying the load corresponding to the load information of the terminal 303, and may perform the following process:

The relay device 302 determines a subframe configuration manner corresponding to the access link with the terminal 303, and the received component carries Among the carriers corresponding to the carrier information of the wave, the component carrier for carrying the load corresponding to the load information of the terminal 303 in the subframe configuration mode is determined. The relay device 302 may determine the component carrier of the load corresponding to the load information of the terminal 303 in the subframe configuration mode, using the semi-static configuration mode, from the carrier corresponding to the carrier information of the received component carrier. . For example, when the subframe configuration capacity of the access link of one component carrier is sufficient to support the maximum load required by the terminal 303 in the semi-static configuration period, the relay device 302 can configure one component carrier for the terminal; When the subframe configuration capacity corresponding to the access link of the carrier is insufficient to support the maximum load required by the terminal in the semi-static configuration period, the relay device 302 adds the maximum load required by the terminal to the terminal according to the semi-static configuration period. Configure one or more component carriers.

With the technical solution provided in the foregoing embodiment, the relay device can further allocate the component carriers allocated by the base station to the terminals according to the load of each terminal that is carried, thereby optimizing resource configuration and ensuring load balancing.

Embodiment 3

The second embodiment provides a supplementary solution to the multi-carrier implementation method in the relay transmission system provided in the first embodiment. In the third embodiment, based on the first embodiment, the relay transmission system is further included. In the case of a terminal directly connected to the base station 301 (referred to as a direct connection terminal), the base station 301 implements an allocation of a component carrier for the directly connected terminal.

FIG. 7 is a schematic diagram of a process in which a base station 301 allocates component carriers for a directly connected terminal. As shown in FIG. 7, the method mainly includes the following steps:

Step 701: The directly connected terminal reports its own load information to the base station 301.

In the step 701, the direct connection terminal can perform the load information on the base station 301 through the direct link established with the base station 301. The method for determining the correlation of the load information is the terminal in step 401 in the first embodiment. The manner of determining the load information of the 303 is basically the same, and details are not described herein again.

Step 702: After receiving the load information of the directly connected terminal on the direct link in the relay transmission system, the base station 301 determines at least one component carrier for carrying the load corresponding to the load information according to the load information.

In the step 702, the base station 301 determines the basic principle of the component carrier allocated to the directly connected terminal according to the load information of the directly connected terminal, and determines the component carrier allocated to the relay device 301 according to the load information of the relay device 301. The basic principles are the same and will not be described here.

Step 703: The base station 301 sends carrier information of the component carrier determined for the directly connected terminal to the corresponding direct terminal.

In step 703, the base station 301 can send carrier information to the directly connected terminal through high layer signaling, for example, sending carrier information to the directly connected terminal through RNC signaling.

Step 704: After receiving the carrier information sent by the base station 301, the directly connected terminal performs carrier configuration according to the carrier information. In the step 704, the direct connection terminal performs carrier configuration according to the received carrier information, that is, according to the carrier identifier and the carrier configuration information included in the carrier information, and performs corresponding configuration, such as adding a carrier, deleting a carrier, or modifying a carrier. The carrier configuration information generally includes information such as a frequency point corresponding to the carrier. So far, the flow of the base station 301 to allocate component carriers for the directly connected terminals ends.

With the technical solution provided by the third embodiment, the base station can allocate a corresponding carrier to the directly connected terminal according to the load condition of the directly connected terminal, thereby improving the system capacity.

Embodiment 4

Corresponding to the flow implemented by the base station in the first embodiment to the third embodiment, the fourth embodiment provides a multi-carrier implementation apparatus in the relay transmission system, by which the system capacity of the relay transmission system can be improved.

FIG. 8 is a schematic diagram showing the logical structure of a multi-carrier implementation apparatus in the relay transmission system provided in the fourth embodiment. As shown in FIG. 8, the implementation apparatus mainly includes:

Load information acquisition unit 801, component carrier determination unit 802, and transmission unit 803;

among them:

The load information obtaining unit 801 is configured to acquire the load information of the relay device in the relay transmission system. The component carrier determining unit 802 is configured to determine, according to the load information acquired by the load information acquiring unit 801, the bearer load information. At least one component carrier of the load;

The transmitting unit 803 is configured to send carrier information of the at least one component carrier determined by the component carrier determining unit 802 to the relay device for carrier configuration.

In a preferred embodiment provided by the fourth embodiment, the device shown in FIG. 8 includes a load information acquiring unit 801, which is specifically configured to indicate that the relay device in the relay transmission system reports the load information, and receives the relay device according to the indication. The load information reported; or the load information that is actively reported by the relay device in the relay transmission system.

In a preferred embodiment provided by the fourth embodiment, the device shown in FIG. 8 includes a load information acquiring unit 801, specifically configured to receive a physical uplink shared channel PUSCH of a specific component carrier or a physical uplink of a primary carrier. The load information reported by the control channel PUCCH.

In a preferred embodiment provided by the fourth embodiment, the component carrier determining unit 802 included in the apparatus shown in FIG. 8 is specifically configured to determine a subframe configuration manner corresponding to a backhaul link between the relay device, according to the obtained The load information of the relay device determines at least one component carrier for carrying the load corresponding to the load information in the subframe configuration mode.

In a preferred embodiment provided by the fourth embodiment, the device shown in FIG. 8 includes a load information acquiring unit 801, which is further configured to acquire load information of the user equipment UE on the direct link in the relay transmission system;

Correspondingly, the component carrier determining unit 802 is further configured to determine, according to the load information acquired by the load information acquiring unit 801, at least one component carrier for carrying a load corresponding to the load information;

Correspondingly, the sending unit 803 is further configured to send the carrier information of the at least one component carrier determined by the component carrier determining unit 802 to the UE for carrier configuration.

In a preferred embodiment provided by the fourth embodiment, the component carrier determining unit 802 included in the apparatus shown in FIG. 8 is specifically configured to use the data transmission rate information and/or the transmission data amount information included in the load information acquired by the load information acquiring unit. Determining that the bearer capability satisfies the bearer capability determined according to the data transmission rate information and/or the transmitted data volume information. At least one component carrier.

It should be understood that the units included in the multi-carrier implementation apparatus in the above relay transmission system are only logical divisions according to functions implemented by the terminal. In actual applications, superposition or splitting of the above units may be performed. And the function implemented by the multi-carrier implementation device in the relay transmission system provided in the fourth embodiment corresponds to the flow implemented by the base station in the multi-carrier implementation method in the relay transmission system provided in the first embodiment to the third embodiment, The more detailed processing flow that is implemented is described in detail in the foregoing method embodiments, and will not be described in detail herein.

In addition, the multi-carrier implementation apparatus in the relay transmission system in the fourth embodiment further has other functional modules that can implement the first embodiment to the third embodiment, and details are not described herein again.

The multi-carrier implementation device in the foregoing relay transmission system provided in the fourth embodiment may be set independently in the actual application, or may be located in the base station.

Embodiment 5

Corresponding to the flow implemented by the relay device in the first embodiment to the third embodiment, the fifth embodiment provides a multi-carrier implementation device in the relay transmission system, by which the system of the relay transmission system can be improved. capacity.

FIG. 9 is a schematic diagram showing the logical structure of a multi-carrier implementation apparatus in the relay transmission system provided in the fifth embodiment. As shown in FIG. 9, the implementation apparatus mainly includes:

Load information determination and upper unit 901, carrier information receiving unit 902 and configuration unit 903;

Its towel:

The load information determining and upper unit 901 is configured to determine its own load information, and send the load information to the base station in the relay transmission system;

The carrier information receiving unit 902 is configured to receive carrier information of the at least one component carrier for carrying the load corresponding to the load information determined by the base station according to the load information and the load information reported by the reporting unit 901;

The configuration unit 903 is configured to perform carrier configuration according to the carrier information received by the carrier information receiving unit 902.

In a preferred embodiment provided in the fifth embodiment, the device shown in FIG. 9 includes a load information determining and an upper unit 901, which is specifically configured to separately acquire load information of each user equipment UE that is carried, and according to the load of each UE. Information, determine its own load information.

In a preferred embodiment provided by the fifth embodiment, the apparatus shown in FIG. 9 includes a load information determining and upper unit 901, specifically for physically transmitting the load information through a physical uplink shared channel PUSCH of a specific component carrier or a physical structure of the primary carrier. The uplink control channel PUCCH is reported to the base station in the relay transmission system.

As shown in FIG. 10, in a preferred embodiment provided in the fifth embodiment, the apparatus shown in FIG. 9 may further include:

The carrier determining unit 904 is configured to: after the carrier information receiving unit 902 receives the carrier information of the at least one component carrier that is used by the base station to load the load corresponding to the load information, according to the load information of each UE that is carried, And determining, by using the carrier corresponding to the carrier information of the at least one component carrier, a component carrier of the payload corresponding to the load information of the UE;

The carrier information transmitting unit 905 is configured to send, to the corresponding UE, carrier information, which is used by the carrier determining unit 904 to determine the component carrier of the load corresponding to the bearer information of each UE.

In a preferred embodiment provided by the fifth embodiment, the apparatus shown in FIG. 10 includes a carrier determining unit 904, specifically configured to determine a subframe configuration manner corresponding to an access link between the UE, and receive at least one from Among the carriers corresponding to the carrier information of the component carrier, the component carrier for carrying the load corresponding to the load information of the UE in the subframe configuration mode is determined.

It should be understood that the units included in the multi-carrier implementation apparatus in the above relay transmission system are only logical divisions according to functions implemented by the terminal. In actual applications, superposition or splitting of the above units may be performed. And the function implemented by the multi-carrier implementation device in the relay transmission system provided in the fifth embodiment corresponds to the flow implemented by the relay device in the multi-carrier implementation method in the relay transmission system provided in the first embodiment to the third embodiment, The more detailed processing flow implemented by the device has been described in detail in the foregoing method embodiments, and will not be described in detail herein.

In addition, the multi-carrier implementation apparatus in the relay transmission system in the fifth embodiment further has other functional modules that can implement the first embodiment to the third embodiment, and details are not described herein again.

The multi-carrier implementation device in the foregoing relay transmission system provided in the fifth embodiment may be set independently in the actual application, or may be located in the relay device.

Embodiment 6

Corresponding to the processes of Embodiments 1 to 3 above, Embodiment 6 provides a multi-carrier implementation system in a relay transmission system, by which the system capacity of the relay transmission system can be improved.

FIG. 11 is a schematic diagram of a multi-carrier implementation system in the relay transmission system provided in the sixth embodiment. As shown in FIG. 11, the implementation system mainly includes:

Relay device 1101 and base station 1102;

Its towel:

The relay device 1101 is configured to determine its own load information, and send the load information to the base station 1102 in the relay transmission system; and receive the carrier information sent by the base station 1102, and perform carrier configuration according to the carrier information; 1102. After acquiring the load information of the relay device 1101 in the relay transmission system, determining, according to the acquired load information, at least one component carrier for carrying the load corresponding to the load information, and determining the at least one component carrier. The carrier information is transmitted to the relay device 1101.

In a preferred embodiment provided in the sixth embodiment, the relay device 1101 included in the system shown in FIG. 11 is further configured to receive the carrier information sent by the base station 1102, and then receive the slave information according to the load information of each UE. And determining, by the carrier corresponding to the carrier information of the at least one component carrier, the component carriers respectively used to carry the load corresponding to the load information of each UE, and respectively used for carrying the carrier information of the component carrier of the load corresponding to the load information of each UE Send to the corresponding UE for carrier configuration. As shown in FIG. 12, in a preferred embodiment provided by the sixth embodiment, the system shown in FIG. 11 may further include: a UE 1103 located on a direct link in the relay transmission system;

The user equipment UE 1103 on the direct link in the relay transmission system is configured to report its own load information to the base station; and receive carrier information sent by the base station, and perform carrier configuration according to the carrier information;

Correspondingly, the base station 1102 is further configured to: after acquiring the load information of the UE 1103, determine, according to the acquired load information, at least one component carrier for carrying the load corresponding to the load information, and determine the carrier information of the at least one component carrier. Send to the UE.

It should be understood that the base station 1102 included in the multi-carrier implementation system in the relay transmission system in the sixth embodiment corresponds to the multi-carrier implementation device in the relay transmission system provided in the foregoing fourth embodiment, and the specific functions of the base station 1102 are implemented. The implementation details are described in detail in the above-mentioned Embodiment 4, and are not described here. The relay device 1101 included in the multi-carrier implementation system in the relay transmission system in Embodiment 6 corresponds to the relay transmission provided in Embodiment 5 above. The specific implementation details of the multi-carrier implementation device in the system for implementing the functions of the relay device 1101 are described in detail in the foregoing Embodiment 5, and details are not described herein again.

Although the preferred embodiment of the present application has been described, those skilled in the art can make additional changes and modifications to the embodiments once they are aware of the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

A method for implementing a multi-carrier in a relay transmission system, comprising: acquiring, by a base station, load information of a relay device in a relay transmission system;

Determining, according to the obtained load information, at least one component carrier for carrying a load corresponding to the load information;

And determining the determined carrier information of the at least one component carrier to the relay device for carrier configuration.

2. The method according to claim 1, wherein the base station acquires load information of the relay device in the relay transmission system, including:

The base station indicates that the relay device in the relay transmission system reports the load information, and receives the load information reported by the relay device according to the indication; or

The base station receives the load information that is actively reported by the relay device in the relay transmission system.

The method according to claim 1 or 2, wherein the receiving, by the base station, the load information reported by the relay device comprises:

The base station receives the load information reported by the relay device through the physical uplink shared channel PUSCH of the specific component carrier or the physical uplink control channel PUCCH of the primary carrier.

The method according to claim 1, wherein the base station determines, according to the acquired load information of the relay device, at least one component carrier for carrying a load corresponding to the load information, including: The load information of the relay device determines at least one component carrier for carrying the load corresponding to the load information in the subframe configuration mode.

5. The method of claim 1, further comprising:

Obtaining, by the base station, the load information of the user equipment UE on the direct link in the relay transmission system; determining, according to the acquired load information, at least one component carrier for carrying the load corresponding to the load information; And transmitting the determined carrier information of the at least one component carrier to the UE for carrier configuration.

The method according to claim 1 or 5, wherein the load information comprises data transmission rate information and/or transmission data amount information;

Determining, according to the obtained load information, at least one component carrier for carrying a load corresponding to the load information, including:

And determining, according to the obtained data transmission rate information and/or the transmission data amount information, the at least one component carrier whose carrying capacity satisfies the bearer capability determined according to the data transmission rate information and/or the transmission data amount information.

A method for implementing a multi-carrier in a relay transmission system, comprising: the relay device determining its own load information, and reporting the load information to a base station in a relay transmission system;

The method of claim 7, wherein the relay device determines its own load information, including:

The relay device obtains load information of each user equipment UE that is carried, and determines its own load information according to the load information of each UE.

The method of claim 7 or 8, wherein the reporting the load information to the base station in the relay transmission system comprises:

The load information is reported to the base station in the relay transmission system by the physical uplink shared channel PUSCH of the specific component carrier or the physical uplink control channel PUCCH of the primary carrier.

The method of claim 8, wherein the relay device receives the carrier information of the at least one component carrier that is used by the base station to carry the load corresponding to the load information, according to the load information, Also includes:

The relay device determines, according to the load information of each UE that is carried, the negative load corresponding to the load information used to carry each UE, respectively, from the carrier corresponding to the carrier information of the received at least one component carrier. Loaded component carrier;

Transmitting, to the corresponding UE, the carrier information of the component carrier for carrying the load corresponding to the load information of each UE.

The method according to claim 10, wherein the relay device determines, from the carrier corresponding to the carrier information of the at least one component carrier, a component carrier for carrying a load corresponding to the load information of the UE, Includes:

The relay device determines a subframe configuration manner corresponding to the access link between the UEs;

And determining, from the carrier corresponding to the received carrier information of the at least one component carrier, a component carrier for carrying a load corresponding to the load information of the UE in the subframe configuration mode.

After the base station acquires the load information of the relay device in the relay transmission system, the base station determines at least one component carrier for carrying the load corresponding to the load information according to the acquired load information, and determines the determined The carrier information of the at least one component carrier is sent to the relay device; the relay device receives the carrier information sent by the base station, and performs carrier configuration according to the carrier information.

The method according to claim 12, wherein, after receiving the carrier information sent by the base station, the relay device further includes:

And the relay device determines, according to the load information of each UE, the component carrier that is used to carry the load corresponding to the load information of each UE, respectively, from the carrier corresponding to the carrier information of the at least one component carrier that is received;

14. The method of claim 12, further comprising:

The user equipment UE on the direct link in the relay transmission system reports its own load information to the base station; After acquiring the load information of the UE, the base station determines, according to the acquired load information, at least one component carrier for carrying the load corresponding to the load information, and determines the determined carrier information of the at least one component carrier. Sending to the UE for carrier configuration.

A multi-carrier implementation system in a relay transmission system, comprising: a relay device and a base station;

The relay device is configured to determine its own load information, and report the load information to the base station in the relay transmission system; and receive carrier information sent by the base station, and according to the carrier information Perform carrier configuration;

The system according to claim 15, wherein the relay device is further configured to: after receiving the carrier information sent by the base station, receive the received information according to load information of each UE And determining, by the carrier corresponding to the carrier information of the at least one component carrier, a component carrier for carrying a load corresponding to the load information of each UE, and using the component carrier for carrying the load corresponding to the load information of each UE respectively The carrier information is sent to the corresponding UE for carrier configuration.

The system of claim 15, further comprising: a user equipment UE located on a direct link in the relay transmission system;

The UE is configured to report the load information of the UE to the base station; and receive carrier information sent by the base station, and perform carrier configuration according to the carrier information;

The base station is further configured to: after acquiring the load information of the UE, determine, according to the acquired load information, at least one component carrier for carrying a load corresponding to the load information, and determine the at least one Carrier information of the component carrier is transmitted to the UE.

A multi-carrier implementation apparatus in a relay transmission system, comprising: a load information acquisition unit, configured to acquire load information of a relay device in a relay transmission system; a component carrier determining unit, configured to determine, according to the load information acquired by the load information acquiring unit, at least one component carrier for carrying a load corresponding to the load information;

The device according to claim 18, wherein the load information obtaining unit is specifically configured to indicate that the relay device in the relay transmission system reports the load information, and receives the relay device according to the Indicates the load information reported; or receives the load information reported by the relay device in the relay transmission system.

The device according to claim 18 or 19, wherein the load information acquiring unit is specifically configured to receive a physical uplink shared channel PUSCH of the relay device through a specific component carrier or physical uplink control of the primary carrier. Load information reported by the channel PUCCH.

The device according to claim 18, wherein the component carrier determining unit determines the load information of the relay device, and determines that the load information is used to carry the load information in the subframe configuration mode. Load of at least one component carrier.

The device according to claim 17, wherein the load information acquiring unit is further configured to acquire load information of the user equipment UE on the direct link in the relay transmission system; the component carrier a determining unit, configured to determine, according to the load information acquired by the load information acquiring unit, at least one component carrier for carrying a load corresponding to the load information, and a sending unit, configured to determine the component carrier determining unit The determined carrier information of the at least one component carrier is sent to the UE for carrier configuration.

The device according to claim 18 or 22, wherein the component carrier determining unit is specifically configured to: according to the data transmission rate information and/or transmission included in the load information acquired by the load information acquiring unit. The data amount information is determined to satisfy at least one component carrier whose bearer capability satisfies the bearer capability determined according to the data transmission rate information and/or the transmitted data amount information.

A multi-carrier implementation apparatus in a relay transmission system, comprising: a load information determining and reporting unit, configured to determine its own load information, and The information is reported to the base station in the relay transmission system;

a carrier information receiving unit, configured to receive carrier information of the at least one component carrier for carrying the load corresponding to the load information determined by the base station according to the load information determined by the load information and reported by the reporting unit;

And a configuration unit, configured to perform carrier configuration according to the carrier information received by the carrier information receiving unit.

The device according to claim 24, wherein the load information determining and reporting unit is specifically configured to separately acquire load information of each user equipment UE that is carried, and determine according to load information of each UE. Its own load information.

The device according to claim 24 or 25, wherein the load information determining and reporting unit is specifically configured to pass the load information to a physical uplink shared channel PUSCH of a specific component carrier or a physical uplink of a primary carrier. The link control channel PUCCH is reported to the base station in the relay transmission system.

27. The device of claim 25, further comprising:

a carrier determining unit, configured to: after the carrier information receiving unit receives the carrier information of the at least one component carrier that is used by the base station to carry the load corresponding to the load information, according to the load information, respectively, according to each of the bearers a load component of the UE, and determining, from the carrier corresponding to the carrier information of the at least one component carrier, a component carrier for respectively carrying a load corresponding to load information of each UE;

The carrier information sending unit is configured to send, to the corresponding UE, carrier information, which is used by the carrier determining unit to transmit the component carrier of the component corresponding to the load corresponding to the load information of each UE.

The device according to claim 27, wherein the carrier determining unit is specifically configured to determine a subframe configuration manner corresponding to an access link between the UE, and receive the at least one component from And determining, by the carrier corresponding to the carrier information of the carrier, a component carrier for carrying a load corresponding to the load information of the UE in the subframe configuration mode.