WO2014110825A1

WO2014110825A1 - Method and apparatus for scheduling uplink data in carrier aggregation

Info

Publication number: WO2014110825A1
Application number: PCT/CN2013/070773
Authority: WO
Inventors: 纪鹏宇; 权威; 张戬
Original assignee: 华为技术有限公司
Priority date: 2013-01-21
Filing date: 2013-01-21
Publication date: 2014-07-24
Also published as: CN104081832B; CN104081832A

Abstract

The present invention is applicable to the field of communications. Provided are a method and an apparatus for scheduling uplink data in carrier aggregation. The method comprises: sending a scheduling request to a macro base station through a physical uplink control channel; and receiving an uplink data authorization message sent by a base station that triggers sending of uplink data, and sending data, according to the scheduling request, to the base station that triggers sending of uplink data. In the embodiments of the present invention, a user equipment carries, in a scheduling request, an indication message indicating a base station that triggers sending of uplink data, so that a macro base station sends the scheduling request to the base station that triggers sending of uplink data, the base station that triggers sending of uplink data sends uplink data authorization to the user equipment, and the user equipment directly sends data to the base station that triggers sending of uplink data; therefore, the macro base station only needs to send the scheduling request to the base station that triggers sending of uplink data, and the data is directly sent by the user equipment, which saves the load and cost of a network device.

Description

Method and device for scheduling uplink data in carrier aggregation

Technical field

The present invention belongs to the field of communications, and in particular, to a method and apparatus for scheduling uplink data in carrier aggregation. Background technique

The Long Term Evolution (LTE) requires a peak rate of IGbit/s at low mobility and a peak rate of 100 Mbit/s at high mobility. To support such peak rates, more bandwidth is needed, and a larger bandwidth spectrum is hard to find. For high peak rates and average throughput per cell, a wider bandwidth is required. In the prior art, the third generation partner project proposed carrier aggregation technology to meet the needs of greater bandwidth. As of the Rel-11 version of the LTE protocol, only the CA (intra-eNB CA) under the same base station is supported, that is, the primary cell and the secondary cell belong to the same base station. In the future, in order to provide better coverage for hotspots, it is likely to use inter-base station CA (inter-eNB CA) deployment, which is to achieve MSA (multi-stream aggregation). In this deployment scenario, pico (small site) is used to cooperate with the macro (macro base station) to provide services for the UE, and the Pcell (primary serving cell) under the macro provides wide coverage, and the Scdl (secondary serving cell) under the Pico is used. For data enhancement in hotspot areas, Pico is responsible for the transmission of business data on the user side, and macro is responsible for transmitting control signaling. Pico may be responsible for some or all of the user data services, enabling control plane/data plane separation (CP/UP separation). Pico includes but is not limited to HeNB (Home eNB, Home Base Station), RRH (Radio Remote Head), NCT Cell (New Carrier Type) base station, and the like.

In the existing carrier aggregation technology, when the user equipment needs to perform uplink data transmission, since only the macro base station configures the physical uplink control channel, only the physical uplink configured by the macro base station can be configured. The control channel sends a scheduling request to the macro base station, and after receiving the scheduling request, the macro base station cannot distinguish whether the base station that triggered the uplink data transmission is itself or a small base station, and the uplink data is all sent to The macro base station and the macro base station further transmit part of the uplink data to the small base station according to a preset allocation policy. If the small data base that triggers the uplink data transmission is triggered, the network load increases and the signal path loss increases. Summary of the invention

The purpose of the embodiments of the present invention is to provide a method, an apparatus, and a device for scheduling uplink data in carrier aggregation, to solve the problem of increasing network load and increasing signal path loss caused by transmitting uplink data between base stations in the prior art.

The embodiment of the present invention is implemented as follows. In a first aspect, an embodiment of the present invention provides a method for scheduling uplink data in carrier aggregation, where the method includes:

Sending a scheduling request to the macro base station by using a physical uplink control channel, where the scheduling request carries an indication message, where the indication message indicates a base station that triggers uplink data transmission, so that the macro base station acquires and triggers the uplink according to the indication message. a base station for data transmission, the base station includes: a small base station and the macro base station;

Receiving an uplink data grant message sent by the base station that triggers the uplink data transmission, and sending data to the base station that triggers the uplink data transmission according to the scheduling request.

In a first possible implementation manner of the first aspect, the step of uploading data to the base station that triggers the uplink data according to the scheduling request includes:

Sending a buffer status report to the base station that triggers the uplink data transmission;

The uplink data is sent to the base station that triggers the uplink data transmission. In a second possible implementation manner of the first aspect, before the step of sending a scheduling request to the macro base station by using the physical uplink control channel, the method further includes:

Receiving a correspondence between the code in the indication message and the base station, and ranking information of the base station, and creating an indication message according to the correspondence relationship and the ranking information.

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

The medium access control layer parameters sent by the macro base station and the small base station are received, and the medium access control layer parameter of the macro base station is different from the medium access control layer parameter of the small base station.

In a second aspect, an embodiment of the present invention provides a method for scheduling uplink data in carrier aggregation, where the method includes:

And receiving, by the user equipment, a scheduling request sent by the physical uplink control channel, where the scheduling request carries an indication message, where the indication message indicates a base station that triggers uplink data transmission, where the base station includes: a small base station and a macro base station;

Obtaining, by the indication message, a base station that triggers the sending of the uplink data, and processing, according to the obtained base station, the scheduling request;

And if the base station that triggers the uplink data transmission is the macro base station, sending an uplink data authorization message to the user equipment;

Receiving data sent by the user equipment.

In a first possible implementation manner of the second aspect, the step of receiving data sent by the user equipment includes:

Receiving a buffer status report sent by the user equipment;

Receiving data sent by the user equipment.

In a second possible implementation manner of the second aspect, the receiving user equipment is physically - Before the step of the scheduling request sent by the downlink control channel, the method further includes:

And receiving a correspondence between the code in the indication message and the base station and ranking information of the base station.

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

The medium access control layer parameter is configured, and the medium access control layer parameter is sent to the user equipment, where the medium access control layer parameter is different from the medium access control layer parameter configured by the small base station.

In a third aspect, an embodiment of the present invention provides a method for scheduling uplink data in carrier aggregation, where the method includes:

And receiving, by the macro base station, a scheduling request sent by the X2 interface, where the scheduling request carries an indication message, where the indication message indicates a base station that triggers uplink data transmission, where the base station includes: a small base station and the macro base station;

Sending an uplink data authorization message to the user equipment;

Receiving data sent by the user equipment.

In a first possible implementation manner of the third aspect, the step of receiving data sent by the user equipment includes:

Receiving a buffer status report sent by the user equipment;

Receiving data sent by the user equipment.

In a second possible implementation manner of the third aspect, before the step of receiving the scheduling request sent by the macro base station by using the X2 interface, the method further includes:

In a third possible implementation manner of the third aspect, the method further includes the following steps: - Configuring a medium access control layer parameter, and transmitting the medium access control layer parameter to the user equipment, the medium access control layer parameter being different from the medium access control layer parameter configured by the macro base station.

In a fourth aspect, the embodiment of the present invention provides a user equipment, where the user equipment includes: a scheduling request sending unit, configured to send a scheduling request to a macro base station by using a physical uplink control channel, where the scheduling request carries an indication message, The indication message indicates the base station that triggers the uplink data transmission, so that the macro base station acquires the base station that triggers the uplink data transmission according to the indication message, where the base station includes: a small base station and the macro base station;

a receiving unit, configured to receive, after the scheduling request sending unit sends, an uplink data authorization message sent by a base station that triggers the sending of the uplink data;

And a data sending unit, configured to send data to the base station that triggers the uplink data transmission according to the uplink data authorization message received by the receiving unit.

In a first possible implementation manner of the fourth aspect, the sending unit includes: a buffer status report sending subunit, configured to send a buffer status report to a base station that triggers the uplink data sending;

And a data sending subunit, configured to send uplink data to the base station that triggers the uplink data transmission after the buffer status report sending subunit sends.

In a second possible implementation manner of the fourth aspect, before the sending of the scheduling request sending unit, the user equipment further includes:

And an indication message creating unit, configured to receive a correspondence between the code in the indication message and the base station, and sequence information of the base station, and create an indication according to the correspondence relationship and the ranking information, in a fourth aspect In the three possible implementation manners, the user equipment further includes: And a parameter receiving unit, configured to receive media access control layer parameters sent by the macro base station and the small base station, where the medium access control layer parameter of the macro base station is different from the medium access control layer parameter of the small base station.

According to a fifth aspect, an embodiment of the present invention provides a macro base station, where the macro base station includes: a scheduling request receiving unit, configured to receive a scheduling request sent by a user equipment by using a physical uplink control channel, where the scheduling request carries an indication message. The indication message indicates a base station that triggers uplink data transmission, where the base station includes: a small base station and a macro base station;

The triggering base station acquiring unit is configured to acquire, according to the indication message carried in the scheduling request received by the scheduling request receiving unit, a base station that triggers the uplink data transmission;

a processing unit, configured to process, according to the base station that triggers the uplink data transmission acquired by the triggering base station acquiring unit, a scheduling request received by the scheduling request receiving unit;

a sending unit, configured to send an uplink data authorization message to the user equipment after the processing unit processes;

And a data receiving unit, configured to receive data sent by the user equipment after the sending unit sends the data.

In a first possible implementation manner of the fifth aspect, the data receiving unit includes: a buffer status report receiving subunit, configured to receive a buffer status report sent by the user equipment; and a data receiving subunit, configured to: After the buffer status report receiving subunit receives, the data sent by the user equipment is received.

In a second possible implementation manner of the fifth aspect, before the scheduling request receiving unit receives, the macro base station further includes:

And an information receiving unit, configured to receive a correspondence between the code in the indication message and the base station, and sequence information of the base station. In a third possible implementation manner of the fifth aspect, the macro base station further includes:

The medium access layer parameter sending unit is configured to configure a medium access control layer parameter, and send the medium access layer parameter to the user equipment, where the medium access control layer parameter is different from the medium access control layer parameter configured by the small base station.

In a sixth aspect, the embodiment of the present invention provides a small base station, where the small base station includes: a scheduling request receiving unit, configured to receive a scheduling request sent by a macro base station by using a Χ2 interface, where the scheduling request carries an indication message, where the indication The message indicates a base station that triggers uplink data transmission, and the base station includes: a small base station and the macro base station;

a sending unit, configured to send an uplink data authorization message to the user equipment after being received by the scheduling request receiving unit;

In a first possible implementation manner of the sixth aspect, the data receiving unit specifically includes: a buffer status report receiving subunit, configured to receive a buffer status report sent by the user equipment; and a data receiving subunit, configured to After receiving the buffer status report receiving subunit, the data sent by the user equipment is received.

In a second possible implementation manner of the sixth aspect, before the scheduling request receiving unit receives, the small base station further includes:

And an information receiving unit, configured to receive a correspondence between the code in the indication message and the base station, and sequence information of the base station.

In a third possible implementation manner of the sixth aspect, the medium access control layer parameter sending unit is configured to configure a medium access control layer parameter, and send the medium access control layer parameter to the user equipment, The media access control layer parameters are different from the media access control layer parameters configured by the macro base station.

In the embodiment of the present invention, the user equipment carries the message indicating the base station that triggers the uplink data transmission in the scheduling request, so that the macro base station forwards the scheduling request to the base station that triggers the uplink data transmission, and the base station that triggers the uplink data transmission sends the uplink to the user equipment. The data is authorized to enable the user equipment to directly send data to the base station that triggers the uplink data transmission, so that the macro base station only needs to forward the scheduling request to the base station that triggers the uplink data transmission, and the data is directly sent by the user equipment, and does not need to be forwarded between the base stations. Because the size of the scheduling request is much smaller than the data, the load and cost of the network device are saved. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only the present invention. In some embodiments, other drawings may be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a flowchart of a method for scheduling uplink data in carrier aggregation according to an aspect of an embodiment of the present invention;

2 is a flowchart of a method for scheduling uplink data in carrier aggregation according to another aspect of an embodiment of the present invention;

3 is a flowchart of a method for scheduling uplink data in carrier aggregation according to still another aspect of the present invention;

4 is a structural diagram of a user equipment according to an embodiment of the present invention;

FIG. 5 is a structural diagram of a macro base station according to an embodiment of the present invention;

6 is a structural diagram of a small base station according to an embodiment of the present invention;

FIG. 7 is a structural diagram of a user equipment according to another embodiment of the present invention; - Figure 8 is a structural diagram of a macro base station according to another embodiment of the present invention;

FIG. 9 is a structural diagram of a small base station according to another embodiment of the present invention. detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

An embodiment of the present invention provides a method for scheduling uplink data in carrier aggregation, where the method is applied to a user equipment. As shown in FIG. 1, the method includes the following content:

S101. Send a scheduling request to the macro base station by using a physical uplink control channel, where the scheduling request carries an indication message, where the indication message indicates a base station that triggers uplink data transmission, so that the macro base station acquires a trigger according to the indication message. The base station of the uplink data transmission is specifically a base station, and the base station includes: a small base station and the macro base station.

In the embodiment of the present invention, when the user equipment needs to perform uplink data transmission, the user equipment sends a scheduling request to the macro base station by using a physical uplink control channel, where the scheduling request carries an indication for triggering the uplink data transmission. The message of the base station needs to be pointed out that the base station that triggers the uplink data transmission may be one or multiple, for example, the macro base station that triggers the uplink data transmission; or the macro base station plus the small base station that triggers the uplink data transmission. The above examples are for illustrative purposes only and are not intended to be limiting. The instruction message may be specifically: the scheduling request value=l indicates that the scheduling request is triggered by the base station, and the scheduling request value=0 indicates that the scheduling request is not triggered by the base station; It is indicated that the scheduling request is triggered by the base station, and the scheduling request value=l indicates that the scheduling request is not triggered by the base station, so the above examples are for illustrative purposes only and are not limited.

In step S102, the uplink data grant message sent by the base station that triggers the uplink data transmission is received, and the data is sent to the base station that triggers the uplink data transmission according to the uplink data grant message.

In the embodiment of the present invention, after the user equipment sends the scheduling request to the macro base station, the macro base station sends the request to the small base station that triggers the uplink data transmission or directly according to the indication message carried in the scheduling request. The uplink resource is allocated, and the user equipment receives the uplink data grant message sent by the base station that triggers the uplink data transmission, and sends data according to the uplink data grant information to the base station that triggers the uplink data transmission. The step of sending data to the base station that triggers the sending of the uplink data according to the scheduling request includes:

(1) Sending a buffer status report to the base station that triggers the uplink data transmission.

In the embodiment of the present invention, before performing uplink data, the user equipment first sends a buffer status report (BSR) to the base station that triggers the uplink data, to notify the base station that triggers the uplink data that needs to be uploaded. The amount of data.

(2) transmitting uplink data to the base station that triggers the uplink data transmission.

In the embodiment of the present invention, the user equipment carries the message indicating the base station that triggers the uplink data transmission in the scheduling request, so that the macro base station forwards the scheduling request to the base station that triggers the uplink data transmission, and the base station that triggers the uplink data transmission sends the uplink to the user equipment. Data authorization, so that the user equipment directly sends data to the base station that triggers uplink data transmission, so that the macro base station only needs to forward to the base station that triggers uplink data transmission. - - Scheduling requests, and the data is sent directly by the user equipment, and does not need to be forwarded between the base stations. Since the size of the scheduling request is much smaller than the data, the load and cost of the network equipment are saved.

In an optional embodiment of the present invention, before the step of sending a scheduling request to the macro base station through the physical uplink control channel, the method further includes:

In the embodiment of the present invention, before the user equipment sends a scheduling request to the macro base station, the user equipment receives the correspondence between the code in the indication message sent by the system by means of broadcasting, and the base station (eg, 1 corresponding uplink data is triggered by the base station, 0 corresponds to the uplink data is not triggered by the base station) and the sorting information of the base station (eg, the first code corresponds to the macro base station, the second code corresponds to the small base station 1, the third code corresponds to the small base station 2, etc.). And the user equipment creates an indication message of the current uploading data according to the foregoing information. If the created indication message is: 101, it indicates that: the uplink data transmission is triggered by the macro base station and the small base station 2, and needs to be performed to both the macro base station and the small base station 2. Upstream resource application.

In another optional embodiment of the present invention, the method further includes:

In the embodiment of the present invention, the macro base station and the small base station respectively configure media access control layer parameters for the user equipment, and send the medium access control layer parameters to the user equipment, and the media access control layer parameters configured by the macro base station are required to be pointed out. The media access control layer parameters configured with the small base station are different.

Another aspect of the present invention provides a method for scheduling uplink data in carrier aggregation, where the method is applied to a macro base station. As shown in FIG. 2, the method includes the following content:

Step S201: Receive a scheduling request sent by the user equipment by using a physical uplink control channel, where The scheduling request carries an indication message, where the indication message indicates a base station that triggers uplink data transmission, and the base station includes: a small base station and a macro base station.

In the embodiment of the present invention, when the user equipment needs to perform uplink data transmission, the macro base station receives a scheduling request sent by the user equipment through the physical uplink control channel, where the scheduling request carries an indication for triggering the uplink data transmission. The information of the base station needs to be pointed out that the base station that triggers the uplink data may be one or multiple, such as: a macro base station that triggers uplink data transmission; or a small base station that triggers uplink data transmission, the above example It is for illustrative purposes only and is not intended to be limiting.

The indication message may be specifically: the scheduling request value=l indicates that the scheduling request is triggered by the base station, and the scheduling request value=0 indicates that the scheduling request is not triggered by the base station; of course, the scheduling request value=0 may also be used to indicate that the scheduling request value=0 The scheduling request is triggered by the base station, and the scheduling request value=l indicates that the scheduling request is not triggered by the base station, so the above examples are for illustrative purposes only and are not limited.

Step S202: Acquire a base station that triggers the uplink data transmission according to the indication message, and process the scheduling request according to the obtained base station.

In the embodiment of the present invention, after receiving the scheduling request, the macro base station acquires, according to the indication message carried in the scheduling request, a base station that triggers the uplink data transmission, and according to the acquired base station, the scheduling request Follow up. The processing, by the base station, according to the acquired base station, includes:

If the base station that triggers the uplink data transmission is a small base station, forwarding the scheduling request to the small base station through the X2 interface; or

And if the base station that triggers the uplink data transmission is the macro base station, determining to send an uplink data authorization message to the user equipment. In the embodiment of the present invention, if the base station that triggers the uplink data transmission is a small base station, the scheduling request is forwarded to the small base station through the interconnected X2 interface between the base stations. If the base station that triggers the uplink data is the macro base station, the macro base station does not need to forward the scheduling request, but decides to directly send an uplink data authorization message to the user equipment.

Step S203: If the base station that triggers the uplink data transmission is the macro base station, send an uplink data authorization message directly to the user equipment.

Step S204: Receive data sent by the user equipment.

In the embodiment of the present invention, when the macro base station determines that the base station that triggers the uplink data transmission is itself, it sends an uplink data authorization message to the user equipment, allowing the user equipment to send data to the user equipment, and receiving data sent by the user equipment. The step of receiving data sent by the user equipment includes:

(1) receiving a buffer status report sent by the user equipment.

In the embodiment of the present invention, the macro base station receives the buffer status report (BSR) sent by the user equipment before receiving the data sent by the user equipment, so as to obtain the specific data quantity that the user equipment needs to upload.

(2) receiving data sent by the user equipment.

In the embodiment of the present invention, the user equipment carries the message indicating the base station that triggers the uplink data transmission in the scheduling request, so that the macro base station forwards the scheduling request to the base station that triggers the uplink data transmission, and the base station that triggers the uplink data transmission sends the uplink to the user equipment. The data is authorized to enable the user equipment to directly send data to the base station that triggers the uplink data transmission, so that the macro base station only needs to forward the scheduling request to the base station that triggers the uplink data transmission, and the data is directly sent by the user equipment to the triggering base station, and does not need to be in the base station. Forwarding between, because the size of the scheduling request is much smaller than the data, the load and cost of the network device are saved.

In an optional embodiment of the present invention, the receiving user equipment is controlled by physical uplink Before the step of making a scheduling request for channel transmission, the method further includes:

In the embodiment of the present invention, before receiving the scheduling request, the macro base station receives the correspondence between the code in the indication message sent by the system by means of broadcasting or the like and the base station (for example: 1 corresponding uplink data is triggered by the base station, 0 corresponding uplink data is not Triggered by the base station) and the sequencing information of the base station (eg, the first code corresponds to the macro base station, the second code corresponds to the small base station 1, the third code corresponds to the small base station 2, etc.), so that in the subsequent steps, the Acer The station identifies the base station that triggers the uplink data from the indication message sent by the user equipment according to the corresponding relationship and the sorting information.

In another optional embodiment of the present invention, the method further includes the following steps:

The medium access control layer parameter is configured, and the medium access layer parameter is sent to the user equipment, where the medium access control layer parameter is different from the medium access control layer parameter configured by the small base station.

In the embodiment of the present invention, the macro base station configures a medium access control layer (MAC) parameter of the user equipment, where the medium access control layer parameter is configured by the macro base station separately for the user equipment, that is, the medium configured by the macro base station. The access control layer parameters are different from the media access control layer parameters configured by the small base station.

A further embodiment of the present invention provides a method for scheduling uplink data in carrier aggregation, where the method is applied to a small base station. As shown in FIG. 3, the method includes the following content:

Step S301: Receive a scheduling request sent by the macro base station through the X2 interface, and obtain the scheduling request carrying indication message, where the indication message indicates a base station that triggers uplink data transmission, where the base station includes: a small base station and the macro base station.

In the embodiment of the present invention, when the user equipment needs to perform uplink data transmission, the user equipment First, a scheduling request is sent to the macro base station by using a physical uplink control channel, where the scheduling request carries a message for indicating a base station that triggers the uplink data transmission, and it is pointed out that the base station that triggers the uplink data may be one , and may also be multiple, such as: triggering uplink data transmission as a macro base station; or triggering uplink data transmission to be a macro base station plus a small base station. If the indication message indicates that the trigger base station is a small base station, the macro base station sends a scheduling request to the small base station through the interconnection interface X2 interface between the base stations.

Step S302: Send an uplink data authorization message to the user equipment.

Step S303: Receive data sent by the user equipment.

In the embodiment of the present invention, after receiving the scheduling request, the small base station determines that the base station that triggers the uplink data transmission is itself, and sends an uplink data authorization message to the user equipment, allowing the user equipment to send data to the user equipment. And receiving data sent by the user equipment. The step of receiving data sent by the user equipment includes:

(1) receiving a buffer status report sent by the user equipment.

In the embodiment of the present invention, the small base station receives the buffer status report (BSR) sent by the user equipment before receiving the data sent by the user equipment, so as to obtain the specific data quantity that the user equipment needs to upload.

(2) receiving data sent by the user equipment.

In the embodiment of the present invention, the user equipment carries the message indicating the base station that triggers the uplink data transmission in the scheduling request, so that the macro base station forwards the scheduling request to the base station that triggers the uplink data transmission, and the base station that triggers the uplink data transmission sends the uplink to the user equipment. The data is authorized to enable the user equipment to directly send data to the base station that triggers the uplink data transmission, so that the macro base station only needs to forward the scheduling request to the base station that triggers the uplink data transmission, and the data is directly sent by the user equipment to the triggering base station, and does not need to be in the base station. Forwarding between, because the size of the scheduling request is much smaller than the data, the load and cost of the network device are saved. In an optional embodiment of the present invention, before the step of receiving the scheduling request sent by the macro base station through the X2 interface, the method further includes:

In the embodiment of the present invention, before receiving the scheduling request, the small base station receives the correspondence between the code in the indication message sent by the system by means of broadcasting or the like and the base station (eg, 1 corresponding uplink data is triggered by the base station, and 0 corresponds to uplink data is not. Triggered by the base station) and the sequencing information of the base station (eg, the first code corresponds to the macro base station, the second code corresponds to the small base station 1, the third code corresponds to the small base station 2, etc.), so that in the subsequent steps, small The base station identifies, according to the correspondence relationship and the ranking information, a base station that triggers uplink data from an indication message sent by the user equipment.

The medium access control layer parameter is configured, and the medium access control layer parameter is sent to the user equipment, where the medium access control layer parameter is different from the medium access control layer parameter configured by the macro base station.

In the embodiment of the present invention, the small base station separately configures a Medium Access Control (MAC) parameter for the user, and sends the medium access control layer parameter to the user equipment, and the medium to be configured by the small base station is required to be pointed out. The access control layer parameters are different from the media access control layer parameters configured by the macro base station.

FIG. 4 is a structural diagram of a user equipment according to an embodiment of the present invention. For ease of description, only parts related to the embodiment of the present invention are shown, including:

The scheduling request sending unit 401 is configured to send a scheduling request to the macro base station by using a physical uplink control channel, where the scheduling request carries an indication message, where the indication message indicates a base station that triggers uplink data transmission, so that the macro base station according to the The indication message acquires a base station that triggers the uplink data transmission, - the base station comprises: a small base station and the macro base station.

In the embodiment of the present invention, when the user equipment needs to perform uplink data transmission, the scheduling request sending unit 401 of the user equipment sends a scheduling request to the macro base station by using a physical uplink control channel, where the scheduling request is carried for indicating The message of the base station that triggers the uplink data transmission needs to be pointed out that the base station that triggers the uplink data transmission may be one or multiple, such as: a macro base station that triggers uplink data transmission; or triggers uplink data transmission. The small base station is added to the macro base station. The above examples are for illustrative purposes only and are not intended to be limiting.

The indication message may be specifically: the scheduling request value=l indicates that the scheduling request is triggered by the base station, and the scheduling request value=0 indicates that the scheduling request is not triggered by the base station; The scheduling request is triggered by the base station, and the scheduling request value=l indicates that the scheduling request is not triggered by the base station, so the above examples are for illustrative purposes only and are not limited.

The receiving unit 402 is configured to: after being sent by the scheduling request sending unit 401, receive an uplink data authorization message sent by the base station that triggers the uplink data transmission.

The data sending unit 403 is configured to send data to the base station that triggers the uplink data transmission according to the uplink data grant message received by the receiving unit 402.

In the embodiment of the present invention, after the user equipment sends the scheduling request to the macro base station, the macro base station sends the request to the small base station that triggers the uplink data transmission or directly according to the indication message carried in the scheduling request. The receiving unit 402 receives the uplink data grant message sent by the base station that triggers the uplink data transmission, and the data sending unit 403 sends the data to the base station that triggers the uplink data transmission according to the uplink data grant information. The sending unit 403 specifically includes:

The buffer status report sending subunit 4031 is configured to send a buffer status report to the base station that triggers the uplink data transmission. In the embodiment of the present invention, before the user equipment performs the uplink data, the buffer status report sending subunit 4031 first sends a buffer status report (BSR) to the base station that triggers the uplink data to notify the triggering station. The specific amount of data that the base station of the uplink data needs to upload.

The data sending subunit 4032 is configured to send uplink data to the base station that triggers the uplink data transmission after the buffer status report sending subunit 4031 transmits.

In the embodiment of the present invention, the user equipment carries the message indicating the base station that triggers the uplink data transmission in the scheduling request, so that the macro base station forwards the scheduling request to the base station that triggers the uplink data transmission, and the base station that triggers the uplink data transmission sends the uplink to the user equipment. The data is authorized to enable the user equipment to directly send data to the base station that triggers the uplink data transmission, so that the macro base station only needs to forward the scheduling request to the base station that triggers the uplink data transmission, and the data is directly sent by the user equipment, and does not need to be forwarded between the base stations. Because the size of the scheduling request is much smaller than the data, the load and cost of the network device are saved.

In an optional embodiment of the present invention, before the sending of the scheduling request sending unit 401, the user equipment further includes:

An indication message creating unit, configured to receive a correspondence between the code in the indication message and the base station, and sequence information of the base station, and create an indication according to the correspondence relationship and the ranking information, in the embodiment of the present invention Before the user equipment sends the scheduling request to the macro base station, the indication message creating unit receives the correspondence between the code in the indication message sent by the system by means of broadcasting, and the base station.

(eg: 1 corresponding uplink data is triggered by the base station, 0 corresponding uplink data is not triggered by the base station) and sequencing information of the base station (eg: the first code corresponds to the macro base station, the second code corresponds to the small base station 1, the third The code corresponds to the small base station 2, etc.). And the user equipment creates an indication message of the current uploading data according to the foregoing information. If the created indication message is: 101, it indicates that: the uplink data is sent by the macro base station and - - The small base station 2 is jointly triggered, and the uplink resource request needs to be performed to both the macro base station and the small base station 2.

In another optional embodiment of the present invention, the device further includes:

The parameter receiving unit is configured to receive media access control layer parameters sent by the macro base station and the small base station, where the media access control layer parameter of the macro base station is different from the medium access control layer parameter of the small base station.

FIG. 5 is a structural diagram of a macro base station according to an embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, including:

The scheduling request receiving unit 501 is configured to receive a scheduling request that is sent by the user equipment by using a physical uplink control channel, where the scheduling request carries an indication message, where the indication message indicates a base station that triggers uplink data transmission, where the base station includes: And macro base station.

In the embodiment of the present invention, when the user equipment needs to perform uplink data transmission, the scheduling request receiving unit 501 receives a scheduling request sent by the user equipment through the physical uplink control channel, where the scheduling request carries an indication for triggering the uplink. The message of the base station to which the data is transmitted needs to be pointed out that the base station that triggers the uplink data may be one or more, such as: a macro base station that triggers uplink data transmission; or a small base station that triggers uplink data transmission. The above examples are for illustrative purposes only and are not intended to be limiting.

The indication message may be specifically: the scheduling request value=l indicates that the scheduling request is triggered by the base station, and the scheduling request value=0 indicates that the scheduling request is not triggered by the base station; of course, the scheduling request value=0 may also be used to indicate that the scheduling request value=0 The scheduling request is triggered by the base station, and the scheduling request value=l indicates that the scheduling request is not triggered by the base station, so the above examples are for illustrative purposes only and are not limited. The triggering base station acquiring unit 502 is configured to obtain, according to the indication message carried in the scheduling request received by the scheduling request receiving unit 501, a base station that triggers the uplink data transmission.

The processing unit 503 is configured to process, according to the base station that triggers the uplink data transmission acquired by the triggering base station acquiring unit 502, the scheduling request received by the scheduling request receiving unit 501.

In the embodiment of the present invention, after receiving the scheduling request, the macro base station acquires, by the base station acquiring unit 502, the base station that triggers the uplink data transmission according to the indication message carried in the scheduling request, and the processing unit 503 obtains according to the obtained location. The base station performs subsequent processing on the scheduling request. The processing unit 503 specifically includes:

The forwarding subunit 5031 is configured to: if the base station that triggers the uplink data transmission is a small base station, forward the scheduling request to the small base station by using an X2 interface.

The determining sending subunit 5032 is configured to send an uplink data grant message to the user equipment if the base station that triggers the uplink data sending is the macro base station.

The sending unit 504 is configured to send an uplink data authorization message to the user equipment after the processing by the processing unit 503.

The data receiving unit 505 is configured to receive data sent by the user equipment after the sending unit 504 sends the data.

In the embodiment of the present invention, when the macro base station determines that the base station that triggers the uplink data transmission is itself, it sends an uplink data authorization message to the user equipment, allowing the user equipment to send data to the user equipment, and receiving data sent by the user equipment. The data receiving unit 505 specifically includes:

The buffer status report receiving subunit 5051 is configured to receive a buffer status report sent by the user equipment.

In the embodiment of the present invention, the macro base station receives the user before receiving the data sent by the user equipment. - - The Buffer Status Report (BSR) sent by the device to obtain the specific amount of data that the user device needs to upload.

The data receiving subunit 5052 is configured to receive data sent by the user equipment after the buffer status report receiving subunit 5051 receives the data.

In an optional embodiment of the present invention, before the scheduling request receiving unit 501 receives, the macro base station further includes:

In another optional embodiment of the present invention, the macro base station further includes:

a medium access layer parameter sending unit, configured to configure media access control layer parameters, and to the user equipment - transmitting the medium access layer parameter, the medium access control layer parameter being different from the medium access control layer parameter configured by the small base station.

FIG. 6 is a structural diagram of a small base station according to an embodiment of the present invention. For ease of description, only parts related to the embodiment of the present invention are shown, including:

The scheduling request receiving unit 601 is configured to receive a scheduling request that is sent by the macro base station by using the X2 interface, where the scheduling request carries an indication message, where the indication message indicates a base station that triggers uplink data transmission, where the base station includes: a small base station and the macro base station.

In the embodiment of the present invention, when the user equipment needs to perform uplink data transmission, the user equipment first sends a scheduling request to the macro base station by using a physical uplink control channel, where the scheduling request carries an indication for triggering the uplink data transmission. For the message of the base station, it is pointed out that the base station that triggers the uplink data may be one or multiple, for example, the macro base station that triggers the uplink data transmission; or the small base station that triggers the uplink data transmission. If the indication message indicates that the trigger base station is a small base station, the macro base station sends a scheduling request to the small base station through the interconnection interface X2 interface between the base stations.

The sending unit 602 is configured to send an uplink data authorization message to the user equipment after being received by the scheduling request receiving unit 601.

The data receiving unit 603 is configured to receive data sent by the user equipment after being sent by the sending unit 602.

In the embodiment of the present invention, after receiving the scheduling request, the small base station determines that the uplink is triggered. - When the base station for data transmission is itself, the sending unit 602 sends an uplink data grant message to the user equipment, allowing the user equipment to transmit data thereto. The data receiving unit 603 receives the data transmitted by the user equipment. The data receiving unit 603 specifically includes:

The buffer status report receiving subunit 6031 is configured to receive a buffer status report sent by the user equipment.

In the embodiment of the present invention, before receiving the data sent by the user equipment, the buffer status report receiving subunit 6031 first receives the buffer status report (BSR) sent by the user equipment to obtain the user equipment that needs to be uploaded. The amount of specific data.

The data receiving subunit 6032 is configured to receive data sent by the user equipment after the buffer status report receiving subunit 6031 receives the data.

In an optional embodiment of the present invention, before the scheduling request receiving unit 601 receives, the small base station further includes:

In the embodiment of the present invention, before receiving the scheduling request, the small base station receives the correspondence between the code in the indication message sent by the system by means of broadcasting or the like and the base station (for example: 1 corresponding uplink data is used by the base station - - trigger, 0 corresponds to the uplink data is not triggered by the base station) and the sequencing information of the base station (eg: the first code corresponds to the macro base station, the second code corresponds to the small base station 1, the third code corresponds to the small base station 2, etc.) Therefore, in a subsequent step, the small base station identifies the base station that triggers the uplink data from the indication message sent by the user equipment according to the correspondence relationship and the ranking information.

In another optional embodiment of the present invention, the small base station further includes:

The medium access control layer parameter sending unit is configured to configure the medium access control layer parameter, and send the medium access control layer parameter to the user equipment, where the medium access control layer parameter is different from the medium access control layer parameter configured by the macro base station.

FIG. 7 is a structural diagram of a user equipment according to another embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, including: at least one processor 701, a memory 702, a communication interface 703, and bus. The processor 701, the memory 702, and the communication interface 703 are connected by a bus and complete communication with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Componet Interconnect (PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture). For EISA) bus etc. The bus can be divided into an address bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus. among them:

The memory 702 is for storing executable program code, the program code including computer operating instructions. The memory 702 may include a high speed RAM memory and may also include a non-volatile memory, such as at least one disk storage device.

In one embodiment, the processor 701 runs a program corresponding to the executable program code by reading an executable program code stored in the memory 702 for:

Sending a scheduling request to the macro base station by using a physical uplink control channel, where the scheduling request carries an indication message, where the indication message indicates a base station that triggers uplink data transmission, so that the macro base station acquires and triggers the uplink according to the indication message. The base station of the data transmission is specifically a base station, and the base station includes: a small base station and the macro base station.

Receiving an uplink data grant message sent by the base station that triggers the uplink data transmission, and sending data to the base station that triggers the uplink data transmission according to the uplink data grant message.

The step of sending data to the base station that triggers the sending of the uplink data according to the scheduling request includes:

The uplink data is sent to the base station that triggers the uplink data transmission.

The processor 701 is further configured to:

FIG. 8 is a structural diagram of a macro base station according to another embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, including: at least one processor 801, memory 802, and communication - - Interface 803 and bus. The processor 801, the memory 802, and the communication interface 803 are connected by a bus and complete communication with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Componet Interconnect (PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture). For EISA) bus etc. The bus can be divided into an address bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus. among them:

Memory 802 is for storing executable program code, the program code including computer operating instructions. Memory 802 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk storage.

In one embodiment, the processor 801 runs a program corresponding to the executable program code by reading an executable program code stored in the memory 802 for:

And if the base station that triggers the uplink data transmission is the macro base station, sending an uplink data authorization message directly to the user equipment;

Receiving data sent by the user equipment.

The step of receiving data sent by the user equipment includes:

Receiving a buffer status report sent by the user equipment; – receiving data sent by the user equipment.

The processor 801 is further configured to:

FIG. 9 is a structural diagram of a small base station according to another embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown, including: at least one processor 901, a memory 902, and a communication interface 903. And bus. The processor 901, the memory 902, and the communication interface 903 are connected by a bus and complete communication with each other. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Componet Interconnect (PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture). For EISA) bus etc. The bus can be divided into an address bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 9, but it does not mean that there is only one bus or one type of bus. among them:

Memory 902 is for storing executable program code, the program code including computer operating instructions. Memory 902 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk storage device.

In one embodiment, the processor 901 runs a program corresponding to the executable program code by reading an executable program code stored in the memory 902 for:

Receiving, by the macro base station, a scheduling request sent by the Χ2 interface, obtaining the scheduling request carrying indication And the indication message indicates a base station that triggers uplink data transmission, where the base station includes: a small base station and the macro base station;

Sending an uplink data authorization message to the user equipment;

Receiving data sent by the user equipment.

The step of receiving data sent by the user equipment includes:

Receiving a buffer status report sent by the user equipment;

Receiving data sent by the user equipment.

The processor 901 is further configured to:

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

It should be noted that, in the foregoing user equipment and base station embodiments, each unit included is only divided according to functional logic, but is not limited to the foregoing division, as long as the corresponding function can be implemented; The specific names are also for convenience of distinguishing from each other and are not intended to limit the scope of the present invention.

In addition, those skilled in the art can understand that all or part of the steps in implementing the foregoing method embodiments can be completed by a program to instruct related hardware, and the corresponding program can be stored in a meter. In the computer readable storage medium, the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of it within the technical scope disclosed by the embodiments of the present invention. Variations or substitutions are intended to be covered by the scope of the invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk. The description of the examples is only for helping to understand the method of the present invention and its core ideas; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scopes. The description is not to be construed as limiting the invention.

Claims

Rights request

1. A scheduling method for uplink data in carrier aggregation. The method includes:

A scheduling request is sent to the macro base station through the physical uplink control channel. The scheduling request carries an indication message. The indication message indicates the base station that triggers the uplink data transmission, so that the macro base station obtains the trigger for the uplink data based on the indication message. A base station for data transmission, the base station includes: a small base station and the macro base station;

Receive the uplink data authorization message sent by the base station that triggers the uplink data transmission, and send data to the base station that triggers the uplink data transmission according to the scheduling request.

2. The method of claim 1, wherein the step of uploading data to the base station that triggers the uplink data according to the scheduling request includes:

Send a buffer status report to the base station that triggered the uplink data transmission;

Send uplink data to the base station that triggers the uplink data transmission.

3. The method according to claim 1, characterized in that, before the step of sending the scheduling request to the macro base station through the physical uplink control channel, the method further includes:

Receive the corresponding relationship between the code in the indication message and the base station and the sorting information of the base station, and create an indication message based on the corresponding relationship and the sorting information.

4. The method of claim 1, characterized in that, the method further includes:

Receive medium access control layer parameters sent by the macro base station and the small base station, and the medium access control layer parameters of the macro base station are different from the medium access control layer parameters of the small base station.

5. A scheduling method for uplink data in carrier aggregation, characterized in that the method includes: receiving a scheduling request sent by the user equipment through the physical uplink control channel, the scheduling request Carrying an indication message, the indication message indicates the base station that triggers uplink data transmission, and the base station includes: a small base station and a macro base station;

Obtain the base station that triggers the uplink data transmission according to the instruction message, and process the scheduling request according to the obtained base station;

If the base station that triggers the uplink data transmission is the macro base station, send an uplink data authorization message to the user equipment;

Receive data sent by the user equipment.

6. The method of claim 5, wherein the step of receiving data sent by the user equipment includes:

Receive a buffer status report sent by the user equipment;

Receive data sent by the user equipment.

7. The method according to claim 5, characterized in that, before the step of receiving the scheduling request sent by the user equipment through the physical uplink control channel, the method further includes:

Receive the corresponding relationship between the code in the indication message and the base station and the sorting information of the base station.

8. The method according to any one of claims 5 to 7, characterized in that, the method further includes: configuring medium access control layer parameters, and sending the medium access control layer parameters to the user equipment, the medium access The control layer parameters are different from the medium access control layer parameters configured by the small base station.

9. A method for scheduling uplink data in carrier aggregation, characterized in that the method includes: receiving a scheduling request sent by a macro base station through the X2 interface, the scheduling request carrying an indication message, and the indication message indicating triggering of uplink data The sending base station includes: a small base station and the macro base station; Send an uplink data authorization message to the user device;

Receive data sent by the user equipment.

10. The method of claim 9, wherein the step of receiving data sent by the user equipment includes:

Receive the buffer status report sent by the user equipment;

Receive data sent by the user equipment.

11. The method according to claim 9, characterized in that, before the step of receiving the scheduling request sent by the macro base station through the X2 interface, the method further includes:

12. The method according to any one of claims 9-11, characterized in that the method further includes the following steps:

Configure medium access control layer parameters, and send the medium access control layer parameters to the user equipment, where the medium access control layer parameters are different from the medium access control layer parameters configured by the macro base station.

13. A user equipment, characterized in that, the user equipment includes:

A scheduling request sending unit configured to send a scheduling request to the macro base station through the physical uplink control channel, where the scheduling request carries an indication message, and the indication message indicates the base station that triggers uplink data transmission, so that the macro base station can send the uplink data according to the The instruction message acquires the base station that triggers the uplink data transmission, and the base station includes: a small base station and the macro base station;

A receiving unit, configured to receive an uplink data authorization message sent by the base station that triggers the uplink data transmission after the scheduling request sending unit sends it;

A data sending unit, configured to trigger the trigger according to the uplink data authorization message received by the receiving unit. The base station for uplink data transmission sends data.

14. The user equipment according to claim 13, wherein the sending unit includes: a buffer status report sending subunit, configured to send a buffer status report to the base station that triggers the uplink data transmission;

The data sending subunit is configured to send uplink data to the base station that triggered the uplink data sending after the buffer status report sending subunit sends the uplink data.

15. The user equipment according to claim 13, characterized in that, before the scheduling request sending unit sends, the user equipment further includes:

Instruction message creation unit, configured to receive the corresponding relationship between the code in the instruction message and the base station and the sorting information of the base station, and create an indication message according to the corresponding relationship and the sorting information.

16. The user equipment according to claim 13, characterized in that, the user equipment further includes: a parameter receiving unit, configured to receive medium access control layer parameters sent by the macro base station and the small base station. The control layer parameters are different from the medium access control layer parameters of the small base station.

17. A macro base station, characterized in that the macro base station includes:

A scheduling request receiving unit, configured to receive a scheduling request sent by the user equipment through the physical uplink control channel. The scheduling request carries an indication message. The indication message indicates the base station that triggers uplink data transmission. The base station includes: a small base station and Macro base station;

A triggering base station acquisition unit, configured to acquire the base station that triggers the uplink data transmission according to the instruction message carried in the scheduling request received by the scheduling request receiving unit;

A processing unit configured to process the scheduling request received by the scheduling request receiving unit according to the base station that triggers the uplink data transmission obtained by the triggering base station acquisition unit; A sending unit, configured to send an uplink data authorization message to the user equipment after processing by the processing unit;

A data receiving unit, configured to receive data sent by the user equipment after being sent by the sending unit.

18. The macro base station according to claim 17, characterized in that the data receiving unit specifically includes:

The buffering status report receiving subunit is used to receive the buffering status report sent by the user equipment; the data receiving subunit is used to receive the data sent by the user equipment after the buffering status report receiving subunit is received.

19. The macro base station according to claim 17, characterized in that, before the scheduling request receiving unit receives, the macro base station further includes:

An information receiving unit, configured to receive the correspondence between the code in the indication message and the base station and the sorting information of the base station.

20. The macro base station according to claim 17, characterized in that, the macro base station further includes: a medium access layer parameter sending unit, configured to configure medium access control layer parameters and send the medium access layer parameters to user equipment. , the medium access control layer parameters are different from the medium access control layer parameters configured by the small base station.

21. A small base station, characterized in that, the small base station includes:

A scheduling request receiving unit, configured to receive a scheduling request sent by a macro base station through the X2 interface. The scheduling request carries an indication message. The indication message indicates the base station that triggers uplink data transmission. The base station includes: a small base station and the macro base station. ;

A sending unit, configured to send an uplink to the user equipment after the scheduling request receiving unit receives the Data authorization message;

22. The small base station according to claim 20, characterized in that the data receiving unit specifically includes:

23. The small base station according to claim 21, characterized in that, before the scheduling request receiving unit receives, the small base station further includes:

24. The small base station according to claim 21, wherein the small base station further includes: a medium access control layer parameter sending unit, configured to configure medium access control layer parameters and send the medium access control layer to user equipment. Layer parameters, the medium access control layer parameters are different from the medium access control layer parameters configured by the macro base station.