WO2017128349A1

WO2017128349A1 - Scheduling method, device, and communication system

Info

Publication number: WO2017128349A1
Application number: PCT/CN2016/072913
Authority: WO
Inventors: 施玲玲
Original assignee: 华为技术有限公司
Priority date: 2016-01-30
Filing date: 2016-01-30
Publication date: 2017-08-03

Abstract

A scheduling method, device, and communication system. A second entity sends a first message to a first entity, the first message comprising information of a first time-domain resource allocated by the second entity to a terminal to transmit a sounding reference signal (SRS); the first entity receives the first message sent by the second entity, and the first entity schedules the terminal to transmit, over a second time-domain resource not conflicting with the first time-domain resource, an uplink channel or an SRS; the second entity schedules the terminal to send an SRS over the first time-domain resource. A carrier used for communication between the first entity and the terminal and a carrier used for communication between the second entity and the terminal are different component carriers (CCs) of the terminal in a multi-carrier communication system. The first entity and the second entity are communication devices to which the different component carriers belong. In this way, when the terminal transmits uplink channels and SRSs on different CCs simultaneously within a carrier aggregation (CA) scenario, no SRS will be discarded due to limited transmission power of the terminal.

Description

Scheduling method, device and communication system

Technical field

The present invention relates to the field of communications technologies, and in particular, to a scheduling method, apparatus, and communication system.

Background technique

The Sounding Reference Signal (SRS) is an uplink reference signal that is sent by the terminal. The base station can evaluate the uplink channel by measuring the SRS, and evaluate the uplink resources according to the evaluation. It can be seen that SRS is very important for uplink channel estimation to achieve dynamic allocation of uplink resources. In addition, the SRS can also be used for uplink timing of the terminal, reciprocity-assisted downlink beamforming, etc., and is also very important for these operations.

However, after the introduction of the multi-carrier technology, such as Carrier Aggregation (CA), the terminal can perform data transmission on different Component Carriers (CCs), but due to the transmission power limitation of the terminal, when on a certain CC When the transmission of the SRS collides with the channel transmission on other CCs, the terminal preferentially discards the SRS to be transmitted to ensure the normal transmission of the channel. In this way, it will affect the functions such as uplink channel estimation.

Summary of the invention

The embodiment of the invention provides a scheduling method, a device and a communication system, which solve the problem that the terminal causes the SRS to be discarded when the uplink channel and the SRS are simultaneously transmitted on different CCs in the CA scenario.

The first aspect provides a scheduling method, including: receiving, by a first entity, a first message sent by a second entity, where the first message includes first time domain resource information of a transmission sounding reference signal SRS allocated by the second entity to the terminal The first entity scheduling the terminal to transmit an uplink channel or an SRS on a second time domain resource that does not conflict with the first time domain resource; wherein the carrier used by the first entity to communicate with the terminal And a carrier used by the second entity to communicate with the terminal is a different component carrier of the terminal in a multi-carrier communication system, and the first entity and the second entity are respectively different The communication device where the component carrier is located. In this way, when the terminal can be on the same CC When the uplink channel and SRS are transmitted, the SRS is not discarded.

With reference to the first aspect, in a first implementation, before receiving the first message sent by the second entity, the first entity sends a request message to the second entity, requesting the second entity to send the second entity to allocate the terminal The first time domain resource information of the transmitted SRS.

The first time domain resource information of the SRS includes a transmission period and offset information of the SRS.

With reference to the first aspect, in a second implementation manner, the first entity is a base station where a primary component carrier used by the terminal in a multi-carrier communication system, and the second entity is a multi-carrier of the terminal The base station where the secondary component carrier used in the communication system is located.

With reference to the first aspect, in a third implementation manner, the first entity is a base station where a secondary component carrier used by the terminal in a multi-carrier communication system, and the second entity is a multi-carrier of the terminal The base station where the primary component carrier used in the communication system is located.

In conjunction with the first aspect, in a fourth implementation, the first entity and the second entity are located in the same base station.

The second aspect provides a scheduling method scheduling method, including: the second entity sends a first message to the first entity, where the first message includes a first time domain resource of the transmission sounding reference signal SRS allocated by the second entity to the terminal The second entity schedules the terminal to send an SRS on the first time domain resource; wherein the carrier used by the first entity to communicate with the terminal, and the second entity and the terminal The carrier used for communication between the two is a different component carrier of the terminal in the multi-carrier communication system, and the first entity and the second entity are respectively communication devices in which the different component carriers are located. In this way, the terminal can ensure that the SRS is not discarded when the uplink channel and the SRS are simultaneously transmitted on different CCs.

With reference to the second aspect, in a first implementation manner, before the second entity sends the first message to the first entity, the second entity sends, by the first entity, the second entity, to send the second entity, to the terminal, Transmitting first time domain resource information of the SRS.

With reference to the second aspect, in a second implementation manner, the first entity is a base station where a primary component carrier used by the terminal in a multi-carrier communication system, and the second entity is the terminal A base station in which a secondary component carrier used in a multi-carrier communication system is located.

With reference to the second aspect, in a third implementation manner, the first entity is a base station where a secondary component carrier used by the terminal in a multi-carrier communication system, and the second entity is a multi-carrier of the terminal The base station where the primary component carrier used in the communication system is located.

With reference to the second aspect, in a fourth implementation manner, the first entity and the second entity are located in a same base station.

A third aspect provides a scheduling apparatus, where the scheduling apparatus is applied to a base station, and includes a receiving unit and a processing unit, where the receiving unit is configured to receive a first message sent by the peer device, where the first message includes a peer device. The first time domain resource information of the transmission sounding reference signal SRS allocated to the terminal; the processing unit, configured to schedule the terminal to transmit the uplink channel or the SRS on the second time domain resource that does not conflict with the first time domain resource; a carrier used for communication between the device and the terminal, and a carrier used for communication between the peer device and the terminal are different component carriers of the terminal in a multi-carrier communication system, and the The device and the peer device are respectively communication devices in which the different component carriers are located. In this way, the terminal can ensure that the SRS is not discarded when the uplink channel and the SRS are simultaneously transmitted on different CCs.

With reference to the third aspect, in a first implementation, the apparatus further includes: a sending unit, configured to send a request message to the peer device before the receiving unit receives the first message sent by the peer device, requesting The peer device sends the first time domain resource information of the transmission SRS allocated by the peer device to the terminal.

With reference to the third aspect, in a second implementation manner, the device is a base station where a primary component carrier used by the terminal in a multi-carrier communication system, and the peer device is a multi-carrier communication system of the terminal The base station where the secondary component carrier is used.

With reference to the third aspect, in a third implementation manner, the device is a base station where a secondary component carrier used by the terminal in a multi-carrier communication system, and the peer device is the terminal in a multi-carrier communication system The base station where the primary component carrier is used.

In conjunction with the third aspect, in a fourth implementation, the apparatus is located in the same manner as the peer device A base station.

A fourth aspect provides a scheduling apparatus, which is applied to a base station, and includes: a sending unit and a processing unit, where the sending unit is configured to send a first message to the peer device, where the first message includes the device allocating the terminal a first time domain resource information of the transmission sounding reference signal SRS; a processing unit, configured to schedule the terminal to send an SRS on the first time domain resource; wherein the communication between the peer device and the terminal is used The carrier, and the carrier used for communication between the device and the terminal are different component carriers of the terminal in the multi-carrier communication system, and the device and the peer device are respectively the different component carriers Communication device. In this way, the terminal can ensure that the SRS is not discarded when the uplink channel and the SRS are simultaneously transmitted on different CCs.

With reference to the fourth aspect, in a first implementation manner, the device further includes: a receiving unit, configured to receive, by the peer device, the request for the request, before the sending unit sends the first message to the peer device The device sends the first time domain resource information of the transmission SRS allocated by the device to the terminal.

With reference to the fourth aspect, in a second implementation manner, the peer device is a base station where the primary component carrier used by the terminal in the multi-carrier communication system is located, and the device is the terminal in the multi-carrier communication system The base station where the secondary component carrier is used.

With reference to the fourth aspect, in a third implementation manner, the peer device is a base station where the secondary component carrier used by the terminal in the multi-carrier communication system is located, and the device is the multi-carrier communication of the terminal The base station where the primary component carrier is used in the system.

In conjunction with the fourth aspect, in a fourth implementation, the peer device is located in the same base station as the device.

In a fifth aspect, an apparatus is provided, the apparatus comprising a processor, a memory, a transmitter, and a receiver, wherein the memory stores a computer readable program, and the processor controls by running a program in the memory The transmitter and receiver implement the scheduling method involved in the first aspect.

In a sixth aspect, an apparatus is provided, the base station comprising a processor, a memory, a transmitter, and a receiver, wherein the memory stores a computer readable program, and the processor controls by running a program in the memory The transmitter and the receiver implement the dispatcher involved in the second aspect law.

According to a seventh aspect, a communication system is provided, the communication system includes a first device and a second device, wherein the first device is a scheduling device related to the third aspect or a device related to the fifth aspect, the second device The scheduling device related to the fourth aspect or the device related to the sixth aspect.

Compared with the prior art, according to the scheduling scheme provided by the embodiment of the present invention, when the terminal simultaneously transmits the uplink channel and the SRS on different CCs in the CA scenario, the SRS signal is not discarded due to the limitation of the terminal transmit power. Further, since the SRS signal is transmitted and guaranteed, the uplink channel quality estimation and downlink beamforming of the terminal are not affected, and the uplink timing of the terminal is also ensured, which is of great significance to the terminal.

DRAWINGS

1 is a system architecture diagram of an embodiment of the present invention;

2 is a flowchart of a scheduling method according to an embodiment of the present invention;

3A-3B are schematic structural diagrams of a scheduling apparatus according to an embodiment of the present invention;

4 is a schematic structural diagram of a scheduling device according to an embodiment of the present invention;

5A-5B are schematic structural diagrams of another scheduling apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another scheduling device according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a communication system according to an embodiment of the present invention.

detailed description

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

First, some of the terms in this application are explained to be understood by those skilled in the art.

1) The base station, which may also be referred to as a Radio Access Network (RAN) device, is a device that connects the terminal to the wireless network, including but not limited to: an evolved Node B (evolved) Node B, eNB), radio network controller (RNC), Node B (Node B, NB), Base Station Controller (BSC), Base Transceiver Station (BTS), home A base station (for example, Home evolved NodeB, or Home Node B, HNB), a BaseBand Unit (BBU), a WIFI Access Point (AP), and the like.

2) A terminal, also known as a user equipment, is a device that provides voice and/or data connectivity to a user, for example, a handheld device with wireless connectivity, an in-vehicle device, and other processing devices connected to a wireless modem. Wait.

3) A multi-carrier communication system that increases the bandwidth of the system by aggregating multiple component carriers. For example, CA technology. In order to meet the requirements of single-user peak rate and system capacity increase, the Long Term Evolution Advanced (LTE-A) system introduces CA technology, which supports aggregation of multiple CCs, including in the same frequency band. CC aggregation, adjacent or non-adjacent CC aggregation in the same frequency band, and CC aggregation in different frequency bands.

4) Primary Component Carrier (PCC) and Secondary Component Carrier (SCC). The aggregated multiple component carriers include a PCC and at least one SCC, wherein the PCC is used for control plane transmission, and can also be used for user plane transmission; the SCC is used for user plane transmission. The cell corresponding to the PCC is the primary cell (PCell), and the cell corresponding to the SCC is the secondary cell (SCell). The PCell is a cell initially accessed by the terminal and is responsible for radio resource control (RRC) communication with the terminal. The SCell is added during RRC reconfiguration to provide additional radio resources. The PCell is determined at the time of connection establishment; the SCell is added/modified/released by the RRC Connection Reconfiguration message after the initial security activation procedure.

5) "Multiple" means two or more. "and/or", describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. The character "/" generally indicates that the contextual object is an "or" relationship.

Please refer to FIG. 1 , which is a schematic diagram of a multi-carrier communication system according to an embodiment of the present invention. As shown in FIG. 1, the communication system includes a first base station 110 and a second base station 120, and the terminal 130 has the capability of supporting CA. The terminal 130 initially accesses the cell 111 of the first base station 110, and the cell 111 is a Pcell. The first base station 110 configures the cell 121 of the second base station 120 as the Scell for the terminal 130 during RRC reconfiguration. The terminal 130 and the first base station 110 and the second base station 120 can communicate through the air interface (Uu), and the first base station and the second base station can communicate through the X2 port. The first base station 110 may allocate a time-frequency resource for transmitting the SRS, and the second base station 120 may allocate an uplink channel resource, such as a physical uplink shared channel (PUSCH) or a physical uplink control channel (physical uplink). Control channel (PUCCH) resource, that is, the second base station schedules a PUSCH or a PUCCH. The SRS time-frequency resource allocated by the first base station 110 for the terminal 130 and the uplink channel resource allocated by the second base station to the terminal 130 enable the terminal to simultaneously perform SRS and uplink channel transmission, that is, perform SRS and uplink channel on the same symbol. During transmission, the terminal 130 will abandon the transmission of the SRS and preferentially guarantee the transmission of the uplink channel. In this way, it is not conducive to the implementation of functions such as uplink channel evaluation.

In addition, the SRS resources allocated by the first base station 110 and the second base station 120 to the terminal 130 may also be in conflict, that is, the terminal needs to simultaneously send the SRSs on the two CCs. Therefore, the terminal needs to perform power backoff due to power limitation. The SRS signal strength is weak, which is not conducive to the implementation of functions such as uplink channel estimation.

The present application considers the above problem, the first base station 110 notifies the second base station 120 of the SRS time-frequency resources allocated by the terminal 130, so that the second base station 120 shifts the SRS time-frequency resources when scheduling the uplink channel, and avoids subsequent terminals. The problem that the SRS generated during uplink transmission conflicts with the uplink channel transmission. In addition, the second base station 120 may also allocate the SRS time-frequency resource allocated by the first base station 110 when the SRS resource is allocated, and avoid the SRS transmission conflict generated when the subsequent terminal performs the uplink transmission, and solve the power backoff problem.

Of course, the first base station and the second base station may be the base station where the Scell is located, or the first base station is the base station where the Scell is located, and the second base station is the base station where the Pcell is located.

In addition, the Pcell and the Scell can be located in the same base station, that is, the same station CA. At this time, the scheduling of the Pcell. The scheduling entities of the entity and the Scell may be located on different baseband boards of the same base station, different processors or different processing cores.

The embodiment of the invention provides a scheduling method and device, which solves the problem that the terminal simultaneously performs SRS discarding caused by SRS and uplink channel transmission on different CCs in a multi-carrier scenario. The power backoff caused by simultaneous SRS transmission on different CCs can also be solved. The method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Please refer to FIG. 2, which is a signaling flow diagram of a scheduling method according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:

Step 200: The first entity sends a request message to the second entity, requesting the second entity to send the first time domain resource information of the transmission SRS allocated by the second entity to the terminal.

The terminal is a terminal with carrier aggregation capability. a carrier used for communication between the first entity and the terminal, and a carrier used for communication between the second entity and the terminal are different component carriers of the terminal in a multi-carrier communication system, for example a first CC and a second CC, and the first entity and the second entity are respectively communication devices in which the different component carriers are located.

It should be noted that, in the scenario of the same-station CA, for example, the Pcell and the Scell of the terminal are located in the same base station, and the first entity and the second entity are respectively the processor or the processing where the first CC and the second CC are located. The first entity and the second entity are the base stations where the first CC and the second CC are located, respectively, in the scenario of the inter-station CA. For example, when the Pcell and the Scell of the terminal are located in different base stations. At this time, information interaction between the first entity and the second entity may be performed through an X2 interface. When the first CC is the PCC, the second CC is the SCC, or when the first CC is the SCC, the second CC is the PCC. Of course, the first CC and the second CC may also all be SCCs.

Step 201: The second entity sends a first message to the first entity, where the first message includes first time domain resource information of the transmission SRS allocated by the second entity to the terminal.

Optionally, the first message includes a cell identifier of the first entity, and the UE is allocated in the cell. UE SRS period and offset.

It should be noted that the above step 200 may also not be performed, that is, the second entity sends the first message to the first entity by itself, without sending the request by the first entity.

Step 202: The first entity receives the first message sent by the second entity.

Step 203: The first entity schedules, by the terminal, the uplink channel or the SRS to be transmitted on the second time domain resource that does not conflict with the first time domain resource.

Step 204: The second entity schedules the terminal to send an SRS on the first time domain resource.

It should be noted that there is no sequence requirement between the foregoing steps 203 and 204, and may be performed at the same time. Step 203 may be performed first, and then step 204 may be performed. Step 204 may be performed first, and then step 203 is performed, where step 203 and The execution time sequence of step 204 depends on the transmission time sequence of the corresponding uplink signal allocated by the base station for the terminal.

Optionally, the terminal is in a scenario of a cross-station CA, where the first entity is a base station where the primary component carrier used by the terminal in the multi-carrier communication system is located, and the second entity is the terminal The base station where the secondary component carrier used in the carrier communication system is located. Optionally, when the first entity is a base station where the secondary component carrier used by the terminal in the multi-carrier communication system is located, the second entity is a primary member used by the terminal in the multi-carrier communication system. The base station where the carrier is located.

In this way, when the terminal transmits the uplink channel and the SRS simultaneously on different CCs in the CA scenario, the SRS signal is not discarded due to the limitation of the transmission power of the terminal, and further, the transmission of the SRS signal is guaranteed, and the uplink of the terminal is not affected. Channel quality estimation and downlink beamforming also ensure the uplink timing of the terminal, which is of great significance to the terminal.

Based on the scheduling method provided by the foregoing embodiment, the embodiment of the present invention provides a device 300, where the device 300 is applied to a base station, and FIG. 3A is a schematic structural diagram of the device 300 according to an embodiment of the present invention. Apparatus 300 includes a receiving unit 301 and a processing unit 302, wherein:

The receiving unit 301 is configured to receive a first message sent by the peer device, where the first message includes first time domain resource information of the transmission sounding reference signal SRS allocated by the peer device to the terminal;

The processing unit 302 is configured to schedule the terminal to transmit an uplink channel or an SRS on a second time domain resource that does not conflict with the first time domain resource;

The carrier used for communication between the device 300 and the terminal, and the carrier used for communication between the peer device and the terminal are different component carriers of the terminal in the multi-carrier communication system, And the device 300 and the peer device are respectively communication devices where the different component carriers are located.

Optionally, the device may further include a sending unit 303, configured to send a request message to the peer device to request the peer end before the receiving unit 301 receives the first message sent by the peer device. The device sends the first time domain resource information of the transmission SRS allocated by the peer device to the terminal.

Specifically, the first time domain resource information of the SRS includes a transmission period and offset information of the SRS.

Optionally, the device 300 is a base station where a primary component carrier used by the terminal in a multi-carrier communication system, where the peer device is a secondary component carrier used by the terminal in a multi-carrier communication system. Base station.

Optionally, the device 300 is a base station where a secondary component carrier used by the terminal in a multi-carrier communication system, where the peer device is a primary component carrier used by the terminal in a multi-carrier communication system. Base station.

Optionally, the device 300 is located at the same base station as the peer device.

The device 300 involved in the foregoing embodiments may be a separate component or may be integrated into other components. For example, the foregoing device 300 provided by the embodiment of the present invention may be a base station in an existing communication network, or may be integrated in Components within the base station.

It should be noted that the function implementation and the interaction mode of each unit of the apparatus 300 in the embodiment of the present invention may be further referred to the description of the related method embodiments, and details are not described herein again.

In addition, each of the above "units" may be through a specific application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or others that provide the above functions. The device is implemented. In addition, the above receiving unit 301 and the sending unit 303 can receive information from the peer device and send information to the peer device through the communication interface between the device 300 and the peer device, respectively. For example, when the device 300 and the peer device are located in the same When different baseband boards in a base station, information exchange can be implemented through the line interface between the baseband boards; when the apparatus 300 and the peer equipment are located on different base stations, information interaction can be implemented through the interface between the base stations.

The embodiment of the present invention further provides a device 400, which may be a base station or other device located on the base station. FIG. 4 is a schematic structural diagram of a device 400 according to an embodiment of the present invention, as shown in FIG. The device 400 includes a processor 401, a memory 402, a communication interface 403, and program code for executing the inventive scheme is stored in the memory 402 and controlled by the processor 401 for execution.

The program stored in the memory 402 is used by the instruction processor 401 to execute the scheduling method, including: receiving, by using the communication interface 403, the first message sent by the peer device, where the first message includes the first of the transmission SRS allocated by the peer device to the terminal. Time domain resource information; and configured to schedule the terminal to transmit an uplink channel or an SRS on a second time domain resource that does not conflict with the first time domain resource; wherein the carrier used by the device 400 to communicate with the terminal And a carrier used by the peer device to communicate with the terminal is a different component carrier of the terminal in a multi-carrier communication system, and the device 400 and the peer device are respectively different members The communication device where the carrier is located.

Optionally, the peer device may be the device 600 shown in FIG. 6.

Optionally, the processor 401 is further configured to: before receiving the first message sent by the peer device by using the communication interface 403, send a request message to the peer device, requesting the peer device to send the peer device to allocate the terminal Transmitting first time domain resource information of the SRS.

It is to be understood that the device 400 of the embodiment may be used to implement all the functions related to the first entity in the foregoing method embodiments, and the specific implementation process may refer to the related description of the method for executing the first entity in the foregoing method embodiment. Narration.

Based on the scheduling method provided by the foregoing embodiment, the embodiment of the present invention provides a device 500, where the device 500 is applied to a base station, and FIG. 5A is a schematic structural diagram of a device 500 according to an embodiment of the present invention. Apparatus 500 includes a transmitting unit 501 and a processing unit 502, wherein:

The sending unit 501 is configured to send, to the peer device, a first message, where the first message includes first time domain resource information of the transmission sounding reference signal SRS allocated by the device for the terminal;

The processing unit 502 is configured to schedule the terminal to send an SRS on the first time domain resource;

The carrier used for communication between the peer device and the terminal, and the carrier used for communication between the device 500 and the terminal are different component carriers of the terminal in the multi-carrier communication system, And the device 500 and the peer device are respectively communication devices where the different component carriers are located.

Optionally, the device may further include a receiving unit 503, configured to receive, after the sending unit sends the first message to the peer device, a request that is sent by the peer device to request the device to send the The first time domain resource information of the transmission SRS allocated by the device for the terminal.

Optionally, the peer device is a base station where the primary component carrier used by the terminal in the multi-carrier communication system, and the device 500 is a secondary component carrier used by the terminal in the multi-carrier communication system. Base station.

Optionally, the peer device is a base station where the secondary component carrier used by the terminal in the multi-carrier communication system is located, and the device 500 is a primary component carrier used by the terminal in the multi-carrier communication system. Base station.

Optionally, the peer device is located at the same base station as the device 500.

The device 500 involved in the foregoing embodiments may be a separate component, or may be integrated into other components. For example, the foregoing device 500 provided by the embodiment of the present invention may be a base station in an existing communication network, or may be integrated in Components within the base station.

It should be noted that the function implementation and the interaction mode of the respective units of the apparatus 500 in the embodiment of the present invention may be further referred to the description of the related method embodiments, and details are not described herein again.

In addition, each of the above "units" may be through a specific application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or others that provide the above functions. The device is implemented. In addition, the above receiving unit 503 and the sending unit 501 can receive information from the peer device and send information to the peer device through the communication interface between the device 500 and the peer device, respectively. For example, when the device 500 and the peer device are located on different baseband boards in the same base station, information can be exchanged through the line interface between the baseband boards. When the device 500 and the peer device are located on different base stations, information interaction can be implemented through an interface between the base stations.

The embodiment of the present invention further provides a device 600, which may be a base station or other device located on the base station. FIG. 6 is a schematic structural diagram of the device 600 according to an embodiment of the present invention, as shown in FIG. The device 600 includes a processor 601, a memory 602, and a communication interface 603. The program code for executing the solution of the present invention is stored in the memory 602 and controlled by the processor 601 for execution.

The program stored in the memory 602 is used by the instruction processor 601 to perform scheduling, including: transmitting, by the communication interface 603, a first message to the peer device, where the first message includes the first time when the device 600 allocates the SRS for the terminal. Domain resource information; and configured to schedule the terminal to send an SRS on the first time domain resource; wherein, the carrier used by the peer device to communicate with the terminal, and between the device 600 and the terminal The carrier used for the communication is a different component carrier of the terminal in the multi-carrier communication system, and the device 600 and the peer device are respectively communication devices in which the different component carriers are located.

Optionally, the peer device may be the device 400 shown in FIG. 4 .

Optionally, the processor 601 is further configured to: before receiving the first message to the peer device by using the communication interface 603, receive, by the peer device, the first, for requesting, by the device 600, the transmission SRS allocated to the terminal to be sent. Request message for time domain resource information.

It is to be understood that the device 600 of the present embodiment may be used to implement all the functions related to the second entity in the foregoing method embodiments. For the specific implementation process, reference may be made to the related description of the second entity execution method in the foregoing method embodiment. Let me repeat.

It is to be understood that the processor involved in the foregoing apparatus 400 and apparatus 600 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or an application-specific integrated circuit (ASIC). Or an integrated circuit for controlling the execution of the program of the present invention. One or more memories included in the computer system, which may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) or Other types of dynamic storage devices that store information and instructions may also be disk storage. These memories pass The bus is connected to the processor.

The communication interface may be a physical module capable of transceiving functions to communicate with other devices or communication networks.

A memory, such as a RAM, holds an operating system and a program for executing the inventive scheme. The operating system is a program that controls the running of other programs and manages system resources.

These memories, transmitters and receivers can be connected to the processor via a bus or can also be connected to the processor via dedicated connection lines.

By programming the processor, the code corresponding to the method shown below is solidified into the chip, so that the chip can perform the method shown in FIG. 2 while it is running. How to design and program the processor is a technique well known to those skilled in the art, and details are not described herein.

As shown in FIG. 7 , an embodiment of the present invention further provides a communication system 700. The communication system 700 includes a first device and a second device. The first device is the device 400 involved in the foregoing embodiment, and the second device is the foregoing embodiment. In the device 600 involved, the device 600 sends a first message to the device 400, where the first message includes first time domain resource information of the transmission SRS allocated by the device 600 for the terminal; the device 400 receives the first message sent by the device 600, and the device 400 The terminal is scheduled to transmit an uplink channel or an SRS on a second time domain resource that does not conflict with the first time domain resource.

The first device 400 included in the communication system provided by the embodiment of the present invention has all the functions of the scheduling device 300, and can implement a corresponding scheduling method. The second device 600 has all the functions of the scheduling device 500 and can implement a corresponding scheduling method. Therefore, for the description of the corresponding functions of the first device 400 and the second device 600 in the embodiment of the present invention, refer to the description of the related embodiments, and details are not described herein again.

It will be understood by those skilled in the art that all or part of the steps of implementing the above embodiments may be performed by a program, and the program may be stored in a computer readable storage medium, which is non-transitory ( English: non-transitory) media, such as random access memory, read-only memory, flash memory, hard disk, solid state disk, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), CD (English: optical disc) And any combination thereof.

The present invention is described with reference to respective flowcharts and block diagrams of methods and apparatus in accordance with embodiments of the present invention. of. It will be understood that each flow and block of the flowchart illustrations. FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. A device that implements the functions specified in one or more blocks of a flowchart or a plurality of flows and block diagrams.

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 changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A scheduling method, comprising:

Receiving, by the first entity, the first message sent by the second entity, where the first message includes first time domain resource information of the transmission sounding reference signal SRS allocated by the second entity to the terminal;

The first entity schedules the terminal to transmit an uplink channel or an SRS on a second time domain resource that does not conflict with the first time domain resource;

The carrier used for communication between the first entity and the terminal, and the carrier used for communication between the second entity and the terminal are different component carriers of the terminal in the multi-carrier communication system. And the first entity and the second entity are respectively communication devices where the different component carriers are located.
The method according to claim 1, wherein before the first entity receives the first message sent by the second entity, the method further includes:

The first entity sends a request message to the second entity, requesting the second entity to send the first time domain resource information of the transmission SRS allocated by the second entity to the terminal.
The method according to claim 1, wherein the first time domain resource information of the SRS comprises a transmission period and offset information of the SRS.
The method according to claim 1, wherein the first entity is a base station where a primary component carrier used by the terminal in a multi-carrier communication system, and the second entity is a multi-carrier of the terminal The base station where the secondary component carrier used in the communication system is located.
The method according to claim 1, wherein the first entity is a base station where a secondary component carrier used by the terminal in a multi-carrier communication system, and the second entity is a multi-carrier of the terminal The base station where the primary component carrier used in the communication system is located.
The method of claim 1 wherein said first entity is located at the same base station as said second entity.
A scheduling method, comprising:

The second entity sends a first message to the first entity, where the first message includes the second entity as a terminal The first time domain resource information of the allocated transmission sounding reference signal SRS;

The second entity schedules the terminal to send an SRS on the first time domain resource;

The carrier used for communication between the first entity and the terminal, and the carrier used for communication between the second entity and the terminal are different component carriers of the terminal in the multi-carrier communication system. And the first entity and the second entity are respectively communication devices where the different component carriers are located.
The method according to claim 7, wherein before the second entity sends the first message to the first entity, the method further includes:

The second entity receives the first time domain resource information sent by the first entity for requesting the second entity to send the transmission SRS allocated by the second entity to the terminal.
The method according to claim 7, wherein the first time domain resource information of the SRS comprises a transmission period and offset information of the SRS.
The method according to claim 7, wherein the first entity is a base station where a primary component carrier used by the terminal in a multi-carrier communication system, and the second entity is a multi-carrier of the terminal The base station where the secondary component carrier used in the communication system is located.
The method according to claim 7, wherein the first entity is a base station where a secondary component carrier used by the terminal in a multi-carrier communication system, and the second entity is a multi-carrier of the terminal The base station where the primary component carrier used in the communication system is located.
The method of claim 7 wherein said first entity and said second entity are located at the same base station.
A scheduling apparatus is applied to a base station, and includes:

a receiving unit, configured to receive a first message sent by the peer device, where the first message includes first time domain resource information of the transmission sounding reference signal SRS allocated by the peer device to the terminal;

a processing unit, configured to schedule, by the terminal, to transmit an uplink channel or an SRS on a second time domain resource that does not conflict with the first time domain resource;

The carrier used for communication between the device and the terminal, and the carrier used for communication between the peer device and the terminal are different types of the terminal in the multi-carrier communication system. a carrier, and the device and the peer device are respectively communication devices in which the different component carriers are located.
The device of claim 13 further comprising:

a sending unit, configured to send, by the receiving unit, a request message to the peer device before receiving the first message sent by the peer device, requesting the peer device to send the transmitting SRS allocated by the peer device to the terminal One-time domain resource information.
The apparatus according to claim 13, wherein the first time domain resource information of the SRS comprises a transmission period and offset amount information of the SRS.
The apparatus according to claim 13, wherein said apparatus is a base station where a primary component carrier used by said terminal in a multi-carrier communication system is located, and said counterpart device is said terminal in a multi-carrier communication system The base station where the secondary component carrier is used.
The device according to claim 13, wherein the device is a base station where a secondary component carrier used by the terminal in a multi-carrier communication system, and the opposite device is the terminal in a multi-carrier communication system The base station where the primary component carrier is used.
The apparatus of claim 13 wherein said apparatus is located at the same base station as said peer device.
A scheduling apparatus is applied to a base station, and includes:

a sending unit, configured to send a first message to the peer device, where the first message includes first time domain resource information of the transmission sounding reference signal SRS allocated by the device for the terminal;

a processing unit, configured to schedule the terminal to send an SRS on the first time domain resource;

The carrier used for communication between the peer device and the terminal, and the carrier used for communication between the device and the terminal are different component carriers of the terminal in a multi-carrier communication system, and The device and the peer device are respectively communication devices in which the different component carriers are located.
The device of claim 19, further comprising:

a receiving unit, configured to receive, before the sending unit sends the first message to the peer device, the first sent by the peer device to request the device to send the transmission SRS allocated by the device to the terminal Time domain resource information.
The apparatus according to claim 19, wherein the first time domain resource information of the SRS comprises a transmission period and offset amount information of the SRS.
The apparatus according to claim 19, wherein said peer device is a base station where a primary component carrier used by said terminal in a multi-carrier communication system is located, and said device is said terminal in a multi-carrier communication system The base station where the secondary component carrier is used.
The device according to claim 19, wherein said peer device is a base station where a secondary component carrier used by said terminal in a multi-carrier communication system is located, and said device is said terminal in a multi-carrier communication system The base station where the primary component carrier is used.
The apparatus of claim 19 wherein said peer device is located at the same base station as said device.
A communication system, comprising: a first device and a second device, wherein the first device comprises the device of any one of claims 13 to 18, and the second device comprises claims 19 to 24 The device of any of the preceding claims.