WO2015123845A1

WO2015123845A1 - Resource scheduling method, and data transmission method and equipment

Info

Publication number: WO2015123845A1
Application number: PCT/CN2014/072324
Authority: WO
Inventors: 李振宇; 朱松; 郭小龙; 张维良
Original assignee: 华为技术有限公司
Priority date: 2014-02-20
Filing date: 2014-02-20
Publication date: 2015-08-27
Also published as: CN105009666A; CN105009666B

Abstract

Provided are a resource scheduling method, and a data transmission method and equipment. The resource scheduling method comprises: network side equipment allocating a first control channel to at least one data channel, establishing a mapping relation between the first control channel and the data channel, and notifying all UE (User Equipment) of the mapping relation; the network side equipment allocating time frequency resource location information to target UE according to the mapping relation and the identification of the target UE and obtaining first scheduling information of the at least one data channel according to the time frequency resource location information, and the first scheduling information allowing for the target UE to perform data transmission according to the time frequency resource location information; the network side equipment receiving, through the at least one data channel, uplink data sent by at least one target UE; and the network side equipment sending the first scheduling information and the feedback information of the uplink data to all the UE through the first control channel. The method described above enables an increase in the rate of utilization of resources in a narrowband system.

Description

Resource scheduling method, data transmission method and device

Technical field

The embodiments of the present invention relate to communication technologies, and in particular, to a resource scheduling method, a data transmission method, and a device.

Background technique

At present, in the centralized control of the dominant cellular network, the narrowband system proposes a multi-channel technical solution in order to increase the system capacity. For example, in order to reduce the probability of a user equipment (User Equipment, UE for short) transmitting a collision when using the same channel for data transmission, a small number of channels in the channel are set as data channels, and other channels are set as control channels, thereby improving user equipment. The success rate of random access.

However, in a narrowband system, the information rate of a single frame in a single channel is relatively low, so that the length of control signaling carried in the control channel is limited, so that a single control frame can only transmit control information of several tens of bits.

Therefore, in the narrowband system, in order to improve the coverage of the signal, only the number of repetitions of data transmission can be increased. As shown in FIG. 1, the number of repetitions of the A area covered by the base station on the network side can be IX, and the B area covered by the base station. The number of repetitions of the C region can be 8X or other repetitions. For different coverage requirements of different signals, the number of repetitions of different channels can be different, so that the user equipment can select a matching channel for data transmission. In addition, in order to increase the flexibility of the channel, part of the channel can be reserved for competitive use, as shown in Figure 2.

Currently, in order to reduce the cost of the user equipment, the user equipment can communicate with the base station by means of Frequency Division Duplexing (FDD), and the base station adopts a large bandwidth and full duplex mode to form a half-duplex FDD system. .

In a half-duplex FDD system, the base station can also transmit data to other user equipments while receiving data sent by the user equipment, that is, in a half-duplex FDD system, if multiple uplink data channels and downlinks exist simultaneously In the data channel, there is a problem that the control channel is limited. Therefore, in a half-duplex FDD system, when there are multiple uplink data channels and/or multiple downlink data channels, how to perform resource scheduling is a problem to be solved. . Summary of the invention

The embodiments of the present invention provide a resource scheduling method, a data transmission method, and a device, which are used to implement reasonable scheduling of resources in a half-duplex FDD system, and improve resource allocation efficiency of a half-duplex FDD system.

In a first aspect, an embodiment of the present invention provides a resource scheduling method, including:

The network side device allocates a first control channel to the at least one data channel, establishes a mapping relationship between the first control channel and the data channel, and notifies the user equipment UE of the mapping relationship; The mapping relationship and the identifier of the target UE allocate time-frequency resource location information to the target UE, and obtain first scheduling information of the at least one data channel according to the time-frequency resource location information, where the first scheduling information is The target UE performs data transmission according to the time-frequency resource location information;

Receiving, by the network side device, the uplink data sent by the at least one target UE by using the at least one data channel;

The network side device sends the first scheduling information and the feedback information of the uplink data to all UEs by using the first control channel.

With reference to the first aspect, in a first possible implementation manner, the first scheduling information includes: an identifier of a target UE;

Or,

The identity of the target UE;

The time-frequency resource location information of the data channel that the first control channel can schedule.

With reference to the first aspect, in a second possible implementation, after the network side device sends the first scheduling information and the feedback information of the uplink data to all the UEs by using the first control channel, The method also includes:

The network side device notifies the all UEs of time-frequency resource location information of a data channel that can be scheduled by the first control channel.

With reference to the first aspect and other possible implementation manners of the foregoing first aspect, in a third possible implementation, when the identifier of the target UE is one in the first scheduling information, the network side device passes the Transmitting, by the first control channel, the first scheduling information and the feedback information of the uplink data to all the UEs;

The network side device uses all fields or partial resources of the identifier of the target UE with the first The cyclic redundancy check code CRC in a control channel performs an exclusive OR operation;

Transmitting, by the network side device, the feedback information and the information after the exclusive OR operation to the first and second possible implementation manners of the first aspect and the first aspect, in a fourth possible implementation The method further includes: when the number of the data channels is less than a preset first threshold, and the number of control channels is greater than a preset second threshold, the method further includes:

The network side device determines second scheduling information of the second control channel, where the second scheduling information is used to allocate time-frequency resource location information in the second control channel to the target UE;

The network side device sends the second scheduling information and/or the feedback information to all UEs through the second control channel.

With reference to the first aspect and the first, second, and third possible implementation manners of the foregoing first aspect, in a fifth possible implementation manner,

The time-frequency resource location is a location of the virtual resource corresponding to the time-frequency resource; or the time-frequency resource location is a physical location of the time-frequency resource; or

The time-frequency resource location is relative location information within a time-frequency resource range of the scheduleable data channel corresponding to the control slot in the first control channel.

With reference to the first aspect and other possible implementation manners of the foregoing first aspect, in a sixth possible implementation, the network side device sends the first scheduling information to all the UEs by using the first control channel. And before the feedback information of the uplink data, the method further includes:

The network side device determines a ratio of the uplink scheduling information UI and the downlink scheduling information DI in the first scheduling information, and location information of the UI and the DI in the first control channel.

With reference to the first aspect and the sixth possible implementation manner of the foregoing first aspect, in a seventh possible implementation manner,

When the UI and the DI are sent to the UE by using the same control channel, the UI and the DI are differentiated by using different time slots; or

The UI and the DI are sent to the UE by using different control channels; or, when the UI and the DI are sent to the UE by using the same control channel, the UI is carried in a control slot of the control channel. The uplink indication is different from the downlink indication carried by the DI in the control slot of the control channel.

Combining the first aspect with the sixth and seventh possible implementations of the first aspect above, in the eighth Possible implementations,

Before the network side device sends the first scheduling information and the feedback information of the uplink data to the all UEs by using the first control channel, the method further includes:

Transmitting, by the network side device, the ratio of the UI and the DI in the first scheduling information to all UEs; and/or,

Transmitting, by the network side device, the manner in which the UI and the DI in the first scheduling information are differentiated to all UEs; and/or,

Transmitting, by the network side device, the maximum uplink time-frequency resource that can be scheduled by the UI to all UEs; and/or,

The network side device sends the maximum downlink time-frequency resource quantity that the DI can schedule to all the UEs.

In a second aspect, an embodiment of the present invention provides a data transmission method, including:

The mapping relationship sent by the network device is monitored by the user equipment UE, where the mapping relationship is a mapping relationship between the first control channel and the at least one data channel;

The target UE in all the UEs sends uplink data to the network side device by using the at least one data channel;

All the UEs receive the first scheduling information that is sent by the network side device by using the first control channel, and the feedback information of the uplink data, where the first scheduling information is that the network side device according to the mapping relationship and Obtained by the identifier of the target UE;

The target UE performs data transmission according to the first scheduling information, and processes feedback information of the uplink data.

With reference to the second aspect, in a first possible implementation manner, the first scheduling information includes: an identifier of a target UE;

Or,

The identity of the target UE;

With reference to the second aspect, in a second possible implementation manner, before the target UE performs data transmission according to the first scheduling information, the method further includes:

All the UEs receive the time-frequency resource location information sent by the network side device, where the time-frequency resource location information is a time-frequency resource location information of the data channel that can be scheduled by the first control channel. With reference to the second aspect and the foregoing possible implementation manner of the second aspect, in a third possible implementation manner, the number of the data channels is less than a preset first threshold, and the number of control channels is greater than a preset second The threshold further includes:

All the UEs receive the second scheduling information and/or the feedback information sent by the network side device by using the second control channel;

The target UE performs data transmission according to the second scheduling information, and/or processes the feedback information.

The second scheduling information is second scheduling information of the second control channel that is acquired by the network side device, and includes the target UE identifier.

With reference to the second aspect and the first and second possible implementation manners of the second aspect, in a fourth possible implementation, the time-frequency resource location is a location of the virtual resource corresponding to the time-frequency resource; or ,

The time-frequency resource location is a physical location of the time-frequency resource; or

With reference to the second aspect and the first and second possible implementation manners of the second aspect, in a fifth possible implementation manner,

Before the target UE performs data transmission according to the first scheduling information, the method further includes:

Receiving, by the UE, the ratio of the UI and the DI in the first scheduling information sent by the network side device, and/or,

Receiving, by the UE, the UI and the DI distinguishing method in the first scheduling information sent by the network side device, and/or,

Receiving, by the UE, the maximum number of uplink time-frequency resources that can be scheduled by the UI sent by the network side device, and/or,

And all the UEs receive the maximum downlink time-frequency resource that can be scheduled by the DI sent by the network side device.

In a third aspect, an embodiment of the present invention provides a communications device, including:

Memory and processor; The memory is for storing instructions;

The processor executes instructions stored in the memory for:

Allocating a first control channel to the at least one data channel, establishing a mapping relationship between the first control channel and the data channel, and notifying the user equipment UE of the mapping relationship;

Allocating time-frequency resource location information to the target UE according to the mapping relationship and the identifier of the target UE, and obtaining first scheduling information of the at least one data channel according to the time-frequency resource location information, the first scheduling information And causing the target UE to perform data transmission according to the time-frequency resource location information;

Receiving uplink data sent by the at least one target UE by using the at least one data channel; and transmitting, by using the first control channel, the first scheduling information and the feedback information of the uplink data to the all UEs.

With reference to the third aspect, in a first possible implementation, the first scheduling information includes: an identifier of a target UE;

Or,

The identity of the target UE;

With reference to the third aspect, in a second possible implementation manner, after the processor sends the first scheduling information and the feedback information of the uplink data to all the UEs by using the first control channel, Yu

Notifying the time-frequency resource location information of the data channel that can be scheduled by the first control channel to all of the foregoing possible implementations in combination with the third aspect and the third aspect, in a third possible implementation manner, in the first When the identifier of the target UE in the scheduling information is one, the processor sends the first scheduling information and the feedback information of the uplink data to all the UEs by using the first control channel;

The processor performs an exclusive OR operation on all or a part of the identifier of the target UE with a cyclic redundancy check code CRC in the first control channel;

The feedback information and the information after the exclusive OR operation are transmitted to the all UEs.

With reference to the third aspect and the first and second possible implementation manners of the third aspect, in a fourth possible implementation manner, the number of the data channels is less than a preset first threshold, and the control channel is When the number is greater than a preset second threshold, the processor is further configured to:

Determining second scheduling information of the second control channel, where the second scheduling information is used to allocate time-frequency resource location information in the second control channel to the target UE;

And transmitting, by the second control channel, the second scheduling information and/or the feedback information to all UEs.

With reference to the third aspect and the first, second, and third possible implementation manners of the third aspect, in a fifth possible implementation, the time-frequency resource location is a virtual resource corresponding to the time-frequency resource. Location; or,

With reference to the third aspect and the foregoing possible implementation manner of the third aspect, in a sixth possible implementation manner, the processor sends the first scheduling information and the information to all the UEs by using the first control channel. Before the feedback information of the uplink data is used,

Determining a ratio of the uplink scheduling information UI and the downlink scheduling information DI in the first scheduling information, and location information of the UI and the DI in the first control channel.

With reference to the third aspect and the sixth possible implementation manner of the third aspect, in a seventh possible implementation manner, when the UI and the DI are sent to the UE by using the same control channel, the UI and the The DI is differentiated by different time slot ratios; or

The UI and the DI are sent to the UE by using different control channels; or

When the UI and the DI are sent to the UE by using the same control channel, the uplink indication carried by the UI in the control slot of the control channel is different from the downlink carried by the DI in the control slot of the control channel. Instructions.

With reference to the third aspect and the sixth and seventh possible implementation manners of the third aspect, in an eighth possible implementation, the processor sends the foregoing to the all UEs by using the first control channel Before/after the scheduling information and the feedback information of the uplink data, it is also used to:

Transmitting a ratio of the UI and the DI in the first scheduling information to the all UEs; and

/ or,

Transmitting the UI and the DI in the first scheduling information to the all UEs; and/or, And sending, to the all UEs, the maximum number of uplink time-frequency resources that can be scheduled by the UI; and/or sending the maximum downlink time-frequency resource that can be scheduled by the DI to all the UEs.

In a fourth aspect, an embodiment of the present invention provides a user equipment, including:

Memory and processor;

The memory is for storing instructions;

The processor executes instructions stored in the memory for:

The mapping relationship sent by the network side device is monitored, where the mapping relationship is a mapping relationship between the first control channel and the at least one data channel;

When the user equipment UE is the target UE, sending uplink data to the network side device by using the at least one data channel,

And receiving the first scheduling information that is sent by the network side device by using the first control channel, and the feedback information of the uplink data, where the first scheduling information is that the network side device according to the mapping relationship and the target UE Obtained by the logo;

Performing data transmission according to the first scheduling information, and processing feedback information of the uplink data. With reference to the fourth aspect, in a first possible implementation manner, the first scheduling information includes: an identifier of a target UE;

Or,

The identity of the target UE;

With reference to the fourth aspect, in a second possible implementation manner, before the performing data transmission by the processor according to the first scheduling information,

Receiving time-frequency resource location information sent by the network side device, where the time-frequency resource location information is time-frequency resource location information of a data channel that can be scheduled by the first control channel.

With the fourth aspect and the foregoing possible implementation manner of the fourth aspect, in a third possible implementation manner, the number of the data channels is less than a preset first threshold, and the number of control channels is greater than a preset second The threshold is also used by the processor

Receiving second scheduling information and/or the feedback information that is sent by the network side device by using the second control channel;

Data transmission is performed according to the second scheduling information, and/or the feedback information is processed.

The second scheduling information is included in the second control channel acquired by the network side device. The second scheduling information of the target UE identifier.

With reference to the fourth aspect and the first and second possible implementation manners of the fourth aspect, in a fourth possible implementation, the time-frequency resource location is a location of the virtual resource corresponding to the time-frequency resource; or ,

With reference to the fourth aspect, the first and second possible implementation manners of the fourth aspect, in a fifth possible implementation manner, before the performing data transmission by the processor according to the first scheduling information,

Receiving, by the network side device, the ratio of the UI and the DI in the first scheduling information, and/or,

Receiving, by the network side device, the method for distinguishing the UI and the DI in the first scheduling information, and/or,

Receiving, by the network side device, the maximum uplink time-frequency resource that can be scheduled by the UI, and/or,

And receiving, by the network side device, the maximum downlink time-frequency resource that can be scheduled by the DI. A fifth aspect of the present invention provides a communications device, including:

An allocating unit, configured to allocate a first control channel to the at least one data channel;

And an establishing unit, configured to establish, according to the first control channel allocated by the allocating unit, a mapping relationship between the first control channel and the data channel;

a sending unit, configured to notify all the user equipments UE of the mapping relationship established by the establishing unit, where the scheduling information generating unit is configured to allocate time-frequency resources to the target UE according to the mapping relationship established by the establishing unit and the identifier of the target UE Position information, and obtaining first scheduling information of the at least one data channel according to the time-frequency resource location information, where the first scheduling information causes the target UE to perform data transmission according to the time-frequency resource location information;

a receiving unit, configured to receive, by using the at least one data channel, uplink data sent by at least one target UE;

The sending unit is further configured to send, by using the first control channel, the first scheduling information and the feedback information of the uplink data to all the UEs. With reference to the fifth aspect, in a first possible implementation manner, the first scheduling information includes: an identifier of a target UE;

Or,

The identity of the target UE;

With reference to the fifth aspect, in a second possible implementation, the sending unit is further configured to send, by using the first control channel, the first scheduling information and the uplink data to the UE After the information, the time-frequency resource location information of the data channel that can be scheduled by the first control channel is notified to all the UEs.

With reference to the fifth aspect and the foregoing possible implementation manners of the fifth aspect, in a third possible implementation manner, when the identifier of the target UE is one in the first scheduling information, the sending unit sends the target UE All or part of the identifier of the identifier is XORed with the cyclic redundancy check code CRC in the first control channel;

And transmitting the feedback information and the information after the XOR operation to the all UEs.

With reference to the fifth aspect and the first and second possible implementation manners of the fifth aspect, in a fourth possible implementation manner, the quantity of the data channel is less than a preset first threshold, and the number of control channels is greater than When the second threshold is preset, the scheduling information generating unit is further used to

The sending unit is further configured to send the second scheduling information and/or the feedback information to all UEs by using the second control channel.

With reference to the first, second, and third possible implementation manners of the fifth aspect and the fifth aspect, in a fifth possible implementation, the time-frequency resource location is a virtual resource corresponding to the time-frequency resource Location; or,

With the fifth aspect and the foregoing possible implementation manner of the fifth aspect, in a sixth possible implementation, the communications device further includes: a determining unit;

The determining unit is configured to determine an uplink scheduling information UI and a downlink adjustment in the first scheduling information. a ratio of the degree information DI, and location information of the UI and the DI in the first control channel. With reference to the fifth aspect, the sixth possible implementation manner of the fifth aspect, in a seventh possible implementation manner, when the UI and the DI are sent to the UE by using the same control channel, the UI and the The DI is differentiated by different time slot ratios; or

The UI and the DI are sent to the UE by using different control channels; or

With reference to the fifth aspect and the sixth and seventh possible implementation manners of the fifth aspect, in an eighth possible implementation, the sending unit is further used to

/ or,

Transmitting, by the first scheduling information, the manner in which the UI and the DI are differentiated to all UEs; and/or,

And sending, to the all UEs, the maximum number of uplink time-frequency resources that can be scheduled by the UI; and/or sending the maximum downlink time-frequency resource that can be scheduled by the DI to all the UEs.

In a sixth aspect, an embodiment of the present invention provides a user equipment, including:

a receiving unit, configured to monitor a mapping relationship sent by the network side device, where the mapping relationship is a mapping relationship between the first control channel and the at least one data channel;

a sending unit, configured to send uplink data to the network side device by using the at least one data channel when the user equipment UE is a target UE;

The receiving unit, configured to: after the transmitting unit sends the uplink data, receive first scheduling information that is sent by the network side device by using the first control channel, and feedback information of the uplink data, where a scheduling information is obtained by the network side device according to the mapping relationship and the identifier of the target UE;

a processing unit, configured to: after the receiving unit receives the first scheduling information, perform data transmission according to the first scheduling information, and process feedback information of the uplink data.

With reference to the sixth aspect, in a first possible implementation manner, the first scheduling information includes: an identifier of a target UE;

or, The identity of the target UE;

With reference to the sixth aspect, in a second possible implementation manner, the receiving unit is further configured to receive time-frequency resource location information sent by the network side device, where the processing unit performs data transmission, where The frequency resource location information is time-frequency resource location information of a data channel that can be scheduled by the first control channel.

With the sixth aspect and the foregoing possible implementation manners of the sixth aspect, in a third possible implementation manner, the number of the data channels is less than a preset first threshold, and the number of control channels is greater than a preset second When the threshold is used, the receiving unit is further used for

The processing unit is further configured to: after the receiving unit receives the second scheduling information, perform data transmission according to the second scheduling information, and/or process the feedback information.

With reference to the sixth aspect and the first and second possible implementation manners of the sixth aspect, in a fourth possible implementation, the time-frequency resource location is a location of the virtual resource corresponding to the time-frequency resource; or ,

With reference to the sixth aspect, the first and second possible implementation manners of the sixth aspect, in a fifth possible implementation, the receiving unit is further used to

Receiving a ratio of the UI and the DI in the first scheduling information sent by the network side device, and/or, before the processing unit performs data transmission,

And receiving, by the network side device, the maximum downlink time-frequency resource that can be scheduled by the DI. According to the foregoing technical solution, the resource scheduling method, the data transmission method, and the device in the embodiment allocate a first control channel to the at least one data channel by using the network side device, and establish a mapping relationship between the first control channel and the data channel. And obtaining the first scheduling information according to the mapping relationship, and the network side device sends the first scheduling information and the feedback information of the uplink data to the UE after receiving the uplink data sent by the target UE, so that the network side device adopts a unified control policy to implement the half-double Reasonable scheduling of resources in the FDD system to improve the resource allocation efficiency of the half-duplex FDD system. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic diagram of a coverage area of a current base station;

2 is a schematic diagram of the use of each channel in the current narrowband system;

FIG. 3 is a schematic flowchart of a resource scheduling method according to an embodiment of the present invention;

4A to FIG. 4F are schematic diagrams showing resource allocation of a control channel according to Embodiment 1 of the present invention; FIG. 5 is a schematic flowchart of a resource scheduling method according to another embodiment of the present invention;

FIG. 6 is a schematic flowchart of a data transmission method according to an embodiment of the present invention;

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

FIG. 8 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a communication device according to another embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a user equipment according to another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the embodiment of the present invention, by implementing the control channel, a control channel can be responsible for several The resource allocation and scheduling of the data channel reduces the number of collisions of user equipment data transmission and improves the resource allocation efficiency of the half-duplex FDD system.

FIG. 3 is a schematic flowchart of a resource scheduling method according to an embodiment of the present invention. As shown in FIG. 3, the resource scheduling method in this embodiment includes the following content.

301. The network side device allocates a first control channel to the at least one data channel, and establishes a mapping relationship between the first control channel and the data channel.

The at least one data channel can include an uplink data channel and a downlink data channel.

302. The network side device notifies all UEs of the mapping relationship.

For example, a network side device such as a base station can notify all UEs of the mapping relationship through system broadcast or paging messages.

In this embodiment, all UEs in the location refer to all UEs in the coverage area of the network side device. Optionally, when the mapping relationship between the first control information and the data channel is changed, the changed mapping relationship may be notified to the UE by broadcasting. That is to say, when the format of the control channel changes, the format of the changed control channel can be notified to the UE by broadcast.

Since the format of the control channel in the narrowband system is compressed, the time-frequency resource location information of the partial data channel may be included in the control channel, and the UE needs to know in advance the time-frequency resource range corresponding to the data channel that can be scheduled by each control channel. .

303. The network side device allocates time-frequency resource location information to the target UE according to the mapping relationship and the identifier of the target UE, and obtains first scheduling information of the at least one data channel according to the time-frequency resource location information. The first scheduling information causes the target UE to perform data transmission according to the time-frequency resource location information.

For example, as shown in FIG. 4A, the first scheduling information may include Uplink Scheduling Information (Downlink Scheduling Information) and Downlink Scheduling Information (DI), and the UI is used to schedule the UE in the UI. The specified uplink resource transmits data in a prescribed manner, and the DI is used to schedule the UE to receive data in a prescribed manner on the resource specified by the DI.

In this embodiment, the time-frequency resource location may be the location of the virtual resource corresponding to the time-frequency resource; or the time-frequency resource location may be the physical location of the time-frequency resource; or the time-frequency resource location may be in the first control channel. Controlling relative position information within a time-frequency resource range of the scheduleable data channel corresponding to the time slot.

304. The network side device receives, by using the at least one data channel, at least one target UE to send. Upstream data.

305. The network side device sends the first scheduling information and the feedback information of the uplink data to all UEs by using the first control channel.

When the network side device schedules a small number of UEs, the feedback information of the uplink data of some UEs in a small number of UEs may be carried in the control channel.

In this embodiment, the first scheduling information and the feedback information in the first control channel are differentiated by bits. Certainly, the feedback information of the first scheduling information and the uplink data may also be distinguished by other distinguishing manners, and this embodiment is merely an example.

The resource scheduling method in this embodiment enables the network side device to adopt a unified control strategy, implements reasonable scheduling of resources in the half-duplex FDD system, and improves resource allocation efficiency of the half-duplex FDD system.

As shown in FIG. 4B, the first scheduling information of the first control channel in FIG. 4B may include a UI and a DI; wherein UI-1 in FIG. 4B may schedule resources corresponding to U0 and U1 of the uplink data channel, for UE-1. Used with UE-2, as shown by the shading in Figure 4B. The UI-2 in Fig. 4B can schedule resources corresponding to U2 and U3 of the uplink data channel for use by UE-3 and UE-4. Unallocated resources are available for competition.

The first control channel in Figure 4B can also carry feedback information of the uplink data, thereby effectively utilizing the resources of the half-duplex FDD system.

Optionally, in this embodiment, the first scheduling information and the time-frequency resource location information of the data channel that can be scheduled by the first control channel can be a display indication. For example, the first scheduling information includes: an identifier of the target UE, and The time-frequency resource location information of the data channel that the first control channel can schedule.

FIG. 4C shows a schematic diagram of the display indication. In FIG. 4C, the UI and the DI respectively carry the identifier of the target UE and the time-frequency resource location information of the data channel that can be scheduled by the first control channel. In Figure 4C, the resources indicated by the UI are indicated by the fields in the UI, and the resources indicated by the DI are also indicated by the fields in the DI. The channel indication field, the resource location field, and the resource length indication field in the UI specify the scheduled channel number and resource location information.

Certainly, the first scheduling information and the time-frequency resource location information of the data channel that can be scheduled by the first control channel may also be an implicit indication. In this case, the first scheduling information may include only: the identifier of the target UE. At this time, the network side device and the target UE perform data transmission in a pre-agreed manner. For example, the network side device and the UE may perform a data transmission by using a table that specifies a time-frequency resource location information of a scheduling index and a data channel by using a protocol. Alternatively, the network side device can transmit data to all UEs in advance. The time-frequency resource location information of the data channel that can be used is notified by a broadcast or paging message, and after receiving the first scheduling information, the target UE may use the time-frequency location information notified by the network-side device to carry relevant data to implement data transmission. .

Figure 4D shows a schematic diagram of an implicit indication. In Figure 4D, the UI and DI carry only the identity of the target UE. In FIG. 4D, the resources indicated by the UI are delivered to all UEs through broadcast messages, or the resources indicated by the UI are agreed with the UE protocol.

The resource scheduling method in this embodiment adopts the foregoing implicit indication manner, which can save the overhead of the control channel, and thus can schedule more target UEs. In the resource scheduling method, the above display indication manner is adopted, and the idle resources can be better scheduled. As a result, the resource scheduling method in the half-duplex FDD system can be made more flexible.

In a specific application process, the first scheduling information and the time-frequency resource location information of the data channel that can be scheduled by the first control channel may be a display indication for scheduling (hereinafter referred to as display scheduling), or may be an implicit indication for scheduling. (hereinafter referred to as implicit scheduling), as shown in Figure 4E. In Figure 4E. Frame 0, frame 1, frame 4, and frame 6 (frame number, abbreviated as frame) are used for uplink scheduling, where frame 0, frame 1, and frame 6 are in the form of implicit scheduling (assuming two UEs are scheduled), and frame 4 is displayed. The form of scheduling (assuming a single UE is scheduled); Frame 2, Frame 3, Frame 5, Frame 7, and Frame 8 are used for downlink scheduling; where Frame 2, Frame 3, and Frame 8 are in the form of display scheduling (assuming two UEs are scheduled) ), frame 5, frame 7 takes the form of display scheduling (assuming a single UE is scheduled).

For example, the UI of the frame 0 implicitly schedules the uplink data channels U0 and U1, and allocates the uplink data channel resources of the frame number 1 to the frame number 6 to the UE-1 and the UE-2, respectively, but the uplink data of the UE-2 is compared. Less, it is sent at frame 3. At this time, the UI of the frame 4 can dynamically allocate the resources of the frames 5 and 6 of the uplink data channel U1 to the new UE-3 by the display scheduling method.

Similarly, for the downlink data channel, the DI of the frame 2 implicitly schedules the downlink data channels DO and D1, the resources of the frame 3 to the frame 5 are respectively allocated to the UE-4 and the UE-5, and the DI of the frame 3 is implicitly scheduled to be downlink. The data channels DO and D1 are allocated to the UE_5 and the UE_6 respectively. Due to the implicit scheduling, only the frame 6 carries the downlink data of the UE-5, but the UE-5 is in the conference. In frame 7, the downlink data is also received on the channel DO, and when the identifier of the UE carried in the data is not the identity of the UE, the reception is stopped. For the network side device, such as the base station, it can perform the scheduling through the DI display of the frame 5, and the channel is The data of frame 7 and frame 8 of the DO is assigned a new UE.

Certainly, the downlink resource information of the uplink data may also be carried on the resource that is displayed in the scheduling. E.g, The feedback information of the uplink data of UE-1 may be carried in frame 7 by displaying the content of the scheduled DI-3 information.

In this embodiment, the format of the control channel may be bound to the frame number in the control channel (the different frame numbers may correspond to different formats), and the format of the control channel of the UE is notified by broadcast, so that the UE can learn the implicit indication. The mapping relationship between scheduling information and time-frequency resource location information.

It should be noted that, in this embodiment, the UI includes one or more of the following information: a differentiated identifier of the control information and the data information, a UI identifier, an identifier of the target UE, channel indication information, resource location information, and a resource length indication. Information, Modulation and Coding Scheme (MCS), frame number, number of repetitions, channel idle state indication information, backoff time after collision, backoff probability after collision, etc.

The DI includes one or more of the following information: a differentiated identifier of the control information and the data information, a DI identifier, an identifier of the target UE, channel indication information, resource location information, resource length indication information, MCS, frame number, number of repetitions, Channel idle state indication information, backoff time after collision, backoff probability after collision, and the like.

The identifier of the target UE is used to distinguish the target UE; the channel indication information is used to indicate which channel is scheduled; the resource location information is used to indicate the starting location of the resource; the resource length indication information is used to indicate the length of the scheduled resource; The number of repetitions is used to indicate the number of times the data needs to be repeatedly transmitted; the channel idle state indication information is used to indicate the idle condition of the channel; the backoff time after the collision is used to indicate how long the UE needs to retreat and then re-engage if a collision occurs. Competition; The backoff probability after collision is used to indicate how much the UE should back off if there is a collision.

Any of the above control channels can be combined by UI and DI according to different time slot ratios. The network side device may notify the UE of the order, the proportion, the distinguishing manner, and the like of the UI and the DI through the broadcast/paging message.

Optionally, the information capacity carried by the control channel of the current narrowband system is very limited. Further, when the identifier of the target UE is one in the first scheduling information, the foregoing step 305 may be specifically the step 305' not shown in the following figure:

305 ′, the network side device performs an exclusive-OR operation on all the fields or partial resources of the identifier of the target UE and a Cyclical Redundancy Check (CRC) in the first control channel;

The network side device transmits the feedback information and the information after the XOR operation to the all UEs. That is to say, when each UI or DI only schedules one UE, the UE identifier or a part of the bit (bit) of the UE identifier and the CRC check code may be XORed to display an indication, thereby further saving control signaling overhead.

The foregoing method can well compress the control information in the first control channel, that is, the first scheduling information, so that the complete time-frequency resource location information is not used in the first scheduling information, and the communication delay can be better reduced.

In an optional application scenario, if the number of data channels in the half-duplex FDD system is less than a preset first threshold, and the number of control channels is greater than a preset second threshold, the redundant Control channel multiplexing is used for data channels.

For example, the resource scheduling method may include steps A01 to A02 which are not shown in the following figures.

A01. The network side device determines second scheduling information of the second control channel, where the second scheduling information is used to allocate time-frequency resource location information in the second control channel to the target UE.

It can be understood that when the second control channel is used as the data channel, the control channel can be no longer allocated for the second control channel, and the second control channel can directly implement the function of the data channel and realize the function of the control channel.

The time-frequency resource location information in this step may indicate time-frequency resource location information in the second control channel.

A02. The network side device sends the second scheduling information to all UEs by using the second control channel.

Of course, if the network side device simultaneously receives uplink data sent by at least one target UE through at least one data channel.

In A02, the network side device may also send second scheduling information and feedback information to all UEs through the second control channel.

It can be understood that, in the case that the total number of channels is insufficient, the foregoing control channel can also be used for sending service data, thereby effectively improving resource utilization.

In a specific application, when the downlink data channel is limited and the control channel resources are sufficient, the control channel can also be multiplexed into a downlink data channel, and the control information and data are distinguished by specific bits (bits). Alternatively, the UI and DI can also be combined into XI, as shown in Figure 4F. The C/D field is used to distinguish between control information and data. The UI/DI field is used to distinguish whether it is uplink scheduling information or downlink scheduling information. The Res and ACK fields are used to distinguish whether it is scheduling information or feedback information of uplink data. It should be understood that the feedback information of the uplink data may be carried in the XI at this time. After receiving the second scheduling information of the second control channel, the UE first parses the C/D field to obtain whether the current frame is control information or data. If it is control information, and then parses the UI/DI field to obtain whether the current frame is uplink scheduling information. Downstream scheduling information.

The resource scheduling method in this embodiment can flexibly adjust the structure of the control information to match different channel number proportions and channel bandwidths, and under different load conditions, whether the control channel is limited or the data channel is limited, the flexible adjustment control is adopted. The use of channels ensures maximum system capacity and improves channel utilization.

In a specific application process, the second control channel is multiplexed into a data channel, which may be specifically as follows, steps A1 to A12:

Al l, the network side device receives the uplink data sent by the at least one target UE through the at least one data channel.

A12. The network side device sends the feedback information of the uplink data to the target UE by using a second control channel.

For the narrowband system, the resource scheduling method of the present embodiment solves the problem that the number of bits of the control channel is limited by the combination of the UI/DI implicit indication and the display indication, and at the same time maintains the flexibility of scheduling.

FIG. 5 is a schematic flowchart of a resource scheduling method according to an embodiment of the present invention. As shown in FIG. 5, the resource scheduling method in this embodiment includes the following content.

501, the network side device allocates a first control channel to the at least one data channel, establishes a mapping relationship between the first control channel and the data channel, and notifies all the UEs of the mapping relationship;

502. The network side device allocates time-frequency resource location information to the target UE according to the mapping relationship and the identifier of the target UE, and obtains first scheduling information of the at least one data channel according to the time-frequency resource location information. The first scheduling information is used to enable the target UE to perform data transmission according to the time-frequency resource location information;

503. The network side device determines a ratio of UI and DI in the first scheduling information, and UI and

DI location information in the first control channel.

For example, in this step, when the UI and the DI are sent to the UE by using the same first control channel, the network side device may distinguish between the UI and the DI by using different time slot ratios.

Optionally, in this step, when the UI and the DI are sent to the UE by using the same first control channel, the uplink indication carried by the UI in the control slot of the first control channel is different, and the DI is in the first control channel. The downstream indication carried in the control slot.

504. The network side device receives the uplink data sent by the at least one target UE by using the at least one data channel.

505. The network side device sends the first scheduling information and the feedback information of the uplink data to all the UEs by using the first control channel.

Of course, the first scheduling information may all be a UI, or the first scheduling information may all be a DI. Alternatively, the UI and DI of the first scheduling information are sent to the UE using different first control channels.

The above method enables the network side device to adopt a unified control strategy to implement reasonable scheduling of resources in the half-duplex FDD system, and improve the resource allocation efficiency of the half-duplex FDD system.

Optionally, the foregoing resource scheduling method shown in FIG. 5 may further include a step 505a not shown in the following figure:

505a, the network side device sends the ratio of the UI and the DI in the first scheduling information to the UE; and/or,

The network side device sends the UI and the DI in the first scheduling information to the UE; and/or,

The network side device sends the maximum uplink time-frequency resource quantity that the UI can schedule to the UE; and/or,

The network side device sends the maximum downlink time-frequency resource quantity that the DI can schedule to the UE. The step 505a may be located before the foregoing step 505, or may be located after the foregoing step 505, which is not limited in this embodiment.

The foregoing step 505a may be implemented by the network side device by means of system broadcast.

In this embodiment, the control channels corresponding to the data channels of different coverage levels may be different. That is to say, the coverage level of at least one data channel in which the first control channel establishes a mapping relationship is the same.

In addition, the UE can select different control channel camps according to its own channel conditions. In order to take into account the flexible requirements of the number of UEs in each coverage level, a few uplink data channels may be reserved, and a specific number of repetitions may not be set. When a network side device, such as a base station, schedules a channel that does not distinguish the number of repetitions, it must use a display. Scheduled UI/DI. The physical uplink indication channel (PUICH) and the physical downlink indication channel (Physical downlink indication channel PDICH) can consider scheduling only a single UE, increase Flexibility.

FIG. 6 is a schematic flowchart diagram of a data transmission method according to an embodiment of the present invention. As shown in FIG. 6, the data transmission method in this embodiment includes the following content.

601. The mapping relationship between the first control channel and the at least one data channel is the mapping relationship between the first control channel and the at least one data channel.

602. The target UE in all UEs sends uplink data to the network side device by using the at least one data channel.

603. The UE receives the first scheduling information that is sent by the network side device by using the first control channel, and the feedback information of the uplink data, where the first scheduling information is that the network side device according to the mapping relationship and Obtained by the identifier of the target UE;

604. The target UE performs data transmission according to the first scheduling information, and processes feedback information of the uplink data.

For example, the first scheduling information may include: an identifier of the target UE. At this time, the first scheduling information and the time-frequency resource location information of the data channel that the first control channel can schedule may be an implicit indication.

Alternatively, the first scheduling information may include: an identifier of the target UE, and time-frequency resource location information of the data channel that the first control channel can schedule. At this time, the first scheduling information and the time-frequency resource location information of the data channel that the first control channel can schedule may be a display indication.

Optionally, the first scheduling information may include a UI and/or a DI. The at least one data channel can include an uplink data channel and a downlink data channel.

In a specific application scenario, before the foregoing step 604, the method shown in FIG. 6 may further include a step 603a not shown in the figure:

603a, all UEs receive a ratio of the UI and the DI in the first scheduling information sent by the network side device, and/or,

All UEs receive a method for distinguishing the UI and the DI in the first scheduling information sent by the network side device, and/or,

All UEs receive the maximum number of uplink time-frequency resources that can be scheduled by the UI sent by the network side device, and/or,

All UEs receive the maximum number of downlink time-frequency resources that can be scheduled by the DI sent by the network side device.

For example, the network side device sends the message to all UEs through system broadcast or paging message. The ratio of UI and DI, the way of distinguishing between UI and DI, the maximum number of uplink time-frequency resources that the UI can schedule, the maximum number of downlink time-frequency resources that DI can schedule, and so on.

Optionally, if the first scheduling information and the time-frequency resource location information of the data channel that can be scheduled by the first control channel are implicitly indicated, before the step 604 of the data transmission method, the method further includes: Step 604a:

604a: All UEs receive time-frequency resource location information sent by the network side device, where the time-frequency resource location information is time-frequency resource location information of a data channel that can be scheduled by the first control channel.

The time-frequency resource location in the embodiment may be the location of the virtual resource corresponding to the time-frequency resource; or the time-frequency resource location may be the physical location of the time-frequency resource; or the time-frequency resource location is the first The relative position information in the time-frequency resource range of the scheduleable data channel corresponding to the control slot in a control channel.

Optionally, when the number of the data channels is less than a preset first threshold, and the number of control channels is greater than a preset second threshold, the embodiment may multiplex the control channels into data channels. For example, the above method also includes steps B01 and B02 which are not shown in the figure:

B01. All UEs receive second scheduling information and/or the feedback information sent by the network side device by using the second control channel.

B02. The target UE performs data transmission according to the second scheduling information, and/or is in the feedback information.

It can be seen from the above embodiment that the data transmission method of the embodiment implements reasonable scheduling of resources in the half-duplex FDD system and improves the resource allocation efficiency of the half-duplex FDD system.

FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present invention. As shown in FIG. 7, the communication device of this embodiment includes: a processor 71, a memory 72, a bus 73, and a communication interface 74. The processor 71 And the memory 72 can be connected by a bus 73, wherein the memory 72 is used for storing instructions, and the processor 71 executes the instructions stored in the memory 72, and performs the following processing: assigning a first control channel to at least one data channel, establishing a Determining a mapping relationship between the first control channel and the data channel, and notifying the user equipment UE of the mapping relationship;

Allocating a time-frequency resource location letter to the target UE according to the mapping relationship and the identifier of the target UE Obtaining, according to the time-frequency resource location information, first scheduling information of the at least one data channel, where the first scheduling information enables the target UE to perform data transmission according to the time-frequency resource location information;

For example, the foregoing first scheduling information may include: an identifier of the target UE. At this time, the scheduling information and the time-frequency resource location information of the data channel that the first control channel can schedule are implicit scheduling modes.

The foregoing first scheduling information may include: an identifier of the target UE, and time-frequency resource location information of the data channel that the first control channel can schedule. At this time, the scheduling information and the time-frequency resource location information of the data channel that can be scheduled by the first control channel are display scheduling modes.

Optionally, after the processor 81 sends the first scheduling information and the feedback information of the uplink data to all the UEs by using the first control channel,

And notifying, in an optional implementation manner, the time-frequency resource location information of the data channel that can be scheduled by the first control channel, where the identifier of the target UE is one in the first scheduling information, the processor The sending, by the first control channel, the first scheduling information and the feedback information of the uplink data to the all UEs by using the first control channel;

The processor 81 performs an exclusive-OR operation on all the fields or partial resources of the identifier of the target UE and the CRC in the first control channel;

In another optional implementation manner, when the number of the data channels is less than a preset first threshold, and the number of control channels is greater than a preset second threshold, the processor is further configured to:

For example, the time-frequency resource location may be the location of the virtual resource corresponding to the time-frequency resource; or the time-frequency resource location may be the physical location of the time-frequency resource; or, the time-frequency resource location may be Corresponding position information in a time-frequency resource range of the scheduleable data channel corresponding to the control slot in the first control channel.

In a third optional implementation manner, the processor 81 is further configured to determine, before sending, by using the first control channel, the first scheduling information and the feedback information of the uplink data to all the UEs. a ratio of UI and DI in the first scheduling information, and location information of the UI and the DI in the first control channel.

It should be noted that, when the UI and the DI are sent to the UE by using the same control channel, the UI and the DI are differentiated by using different time slots; or

The UI and DI are sent to the UE using different control channels; or,

When the UI and the DI are sent to the UE by using the same control channel, the uplink indication carried by the UI in the control slot of the control channel is different from that of the downlink finger carried by the DI in the control slot of the control channel. In the selected implementation manner, before the processor 81 sends the first scheduling information and the feedback information of the uplink data to all the UEs by using the first control channel, the processor 81 is further configured to:

/ or,

The processor in the communication device allocates a first control channel for the at least one data channel, and establishes a mapping relationship between the first control channel and the data channel, and then obtains first scheduling information according to the mapping relationship, where the network side device sends the target UE. After the uplink data, the first scheduling information and the feedback information of the uplink data are sent to the UE, so that the network side device adopts a unified control strategy to implement reasonable scheduling of resources in the half-duplex FDD system, and improve resource allocation of the half-duplex FDD system. effectiveness.

FIG. 8 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 8, the user equipment in this embodiment includes: a processor 81, a memory 82, a bus 83, and a communication interface 84. The processor 81 The memory 82 can be connected to the memory 82, wherein the memory 82 is used to store instructions, and the processor 81 executes the instructions stored in the memory 82 to perform the following processing: The mapping relationship sent by the network side device is monitored, where the mapping relationship is a mapping relationship between the first control channel and the at least one data channel;

Performing data transmission according to the first scheduling information, and processing feedback information of the uplink data. Optionally, the first scheduling information may include: an identifier of the target UE. Alternatively, the first scheduling information may include: an identifier of the target UE, and time-frequency resource location information of the data channel that the first control channel can schedule.

In an optional implementation manner, before the processor 81 performs data transmission according to the first scheduling information,

In a second optional implementation manner, when the number of the data channels is less than a preset first threshold, and the number of control channels is greater than a preset second threshold, the processor 81 is further configured to:

For example, the time-frequency resource location may be the location of the virtual resource corresponding to the time-frequency resource; or the time-frequency resource location may be the physical location of the time-frequency resource; or the time-frequency resource location may be the The relative position information in the time-frequency resource range of the scheduleable data channel corresponding to the control slot in a control channel.

In a third optional implementation manner, before the processor 81 performs data transmission according to the first scheduling information,

Receiving, by the network side device, the ratio of the UI and the DI in the first scheduling information, and/or, Receiving, by the network side device, the UI and the DI distinguishing method in the first scheduling information, and/or,

And receiving, by the network side device, the maximum downlink time-frequency resource that can be scheduled by the DI. The user equipment interacts with the network side device to implement reasonable scheduling of resources in the half-duplex FDD system and improve the resource allocation efficiency of the half-duplex FDD system.

FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention. As shown in FIG. 9, the communication device of this embodiment includes: an allocating unit 91, an establishing unit 92, a sending unit 93, a scheduling information generating unit 94, and Receiving unit 95;

The allocating unit 91 is configured to allocate a first control channel to the at least one data channel; the establishing unit 92 is configured to establish a mapping relationship between the first control channel and the data channel according to the first control channel allocated by the allocating unit;

The sending unit 93 is configured to notify all the user equipments UE of the mapping relationship established by the establishing unit. The scheduling information generating unit 94 is configured to allocate time-frequency resources to the target UE according to the mapping relationship established by the establishing unit and the identifier of the target UE. Position information, and obtaining first scheduling information of the at least one data channel according to the time-frequency resource location information, where the first scheduling information causes the target UE to perform data transmission according to the time-frequency resource location information;

The receiving unit 95 is configured to receive uplink data sent by the at least one target UE by using the at least one data channel;

The sending unit 93 is further configured to send, by using the first control channel, the first scheduling information and the feedback information of the uplink data to all the UEs.

For example, the first scheduling information may include: an identifier of the target UE. Alternatively, the first scheduling information may include: an identifier of the target UE, and time-frequency resource location information of the data channel that the first control channel can schedule.

In an optional scenario, the sending unit 93 is also used to

After transmitting the first scheduling information and the feedback information of the uplink data to all the UEs by using the first control channel, notifying all the time-frequency resource location information of the data channel that can be scheduled by the first control channel UE.

In a second optional scenario, the identifier of the target UE is one in the first scheduling information. The sending unit 93 performs an exclusive OR operation on all the fields or partial resources of the identifier of the target UE and the cyclic redundancy check code CRC in the first control channel;

In a third optional scenario, when the number of the data channels is less than a preset first threshold, and the number of control channels is greater than a preset second threshold, the scheduling information generating unit 94 is further configured to determine Second scheduling information of the second control channel, where the second scheduling information is used to allocate time-frequency resource location information in the second control channel to the target UE;

The sending unit 93 is further configured to send the second scheduling information and/or the feedback information to all UEs by using the second control channel.

For example, the foregoing time-frequency resource location may be a location of the virtual resource corresponding to the time-frequency resource; or the foregoing time-frequency resource location may be a physical location of the time-frequency resource; or the foregoing time-frequency resource The location may be relative location information within a time-frequency resource range of the scheduleable data channel corresponding to the control slot in the first control channel.

In a fourth optional scenario, the communication device further includes a determining unit 96 not shown in the figure; the determining unit 96 is configured to determine a ratio of the UI and the DI in the first scheduling information, and

Location information of the UI and DI in the first control channel.

For example, when the UI and the DI are sent to the UE by using the same control channel, the UI and the DI are differentiated by using different time slots; or

The UI and the DI are sent to the UE by using different control channels; or

In a fifth optional scenario, the sending unit 93 is also used to

Transmitting the ratio of the UI and the DI in the first scheduling information to the all UEs; and/or,

The above communication device flexibly configures the UI and DI of the scheduled data channel to implement half-duplex FDD Reasonable scheduling of resources in the system improves the resource allocation efficiency of the half-duplex FDD system.

FIG. 10 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 10, the user equipment in this embodiment includes: a receiving unit 1001, a sending unit 1002, and a processing unit 1003.

The receiving unit 1001 is configured to monitor a mapping relationship that is sent by the network side device, where the mapping relationship is a mapping relationship between the first control channel and the at least one data channel.

The sending unit 1002 is configured to send uplink data to the network side device by using the at least one data channel when the UE is a target UE;

The receiving unit 1001 is configured to: after the transmitting unit 1002 sends the uplink data, receive first scheduling information that is sent by the network side device by using the first control channel, and feedback information of the uplink data, where The first scheduling information is obtained by the network side device according to the mapping relationship and the identifier of the target UE;

The processing unit 1003 is configured to: after the receiving unit 1001 receives the first scheduling information, perform data transmission according to the first scheduling information, and process feedback information of the uplink data.

For example, the first scheduling information may include: an identifier of the target UE. Alternatively, the foregoing first scheduling information may include: an identifier of the target UE, and time-frequency resource location information of the data channel that the first control channel can schedule.

In an optional scenario, the receiving unit 1001 is further configured to: before the processing unit 1003 performs data transmission, receive time-frequency resource location information sent by the network-side device, where the time-frequency resource location information is The time-frequency resource location information of the data channel that the first control channel can schedule.

In the second optional scenario, when the number of the data channels is less than a preset first threshold, and the number of control channels is greater than a preset second threshold, the receiving unit 1001 is further used.

The processing unit 1003 is further configured to: after the receiving unit receives the second scheduling information, perform data transmission according to the second scheduling information, and/or process the feedback information.

For example, the foregoing time-frequency resource location may be a location of the virtual resource corresponding to the time-frequency resource; or the time-frequency resource location may be a physical location of the time-frequency resource; or, the time-frequency resource bit The relative position information in the time-frequency resource range of the scheduleable data channel corresponding to the control slot in the first control channel may be set.

In a third optional scenario, the receiving unit 1001 is further configured to: before the processing unit 1003 performs data transmission, receive the UI and the first scheduling information sent by the network side device. The ratio of DI, and / or,

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 program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The steps of the foregoing method embodiments are included; 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.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A resource scheduling method, characterized by including:

The network side device allocates a first control channel to at least one data channel, establishes a mapping relationship between the first control channel and the data channel, and notifies all user equipment UE of the mapping relationship; The mapping relationship and the identification of the target UE allocate time-frequency resource location information to the target UE, and obtain the first scheduling information of the at least one data channel based on the time-frequency resource location information. The first scheduling information enables the The target UE performs data transmission according to the time-frequency resource location information;

The network side device receives uplink data sent by at least one target UE through the at least one data channel;

The network side device sends the first scheduling information and the feedback information of the uplink data to all UEs through the first control channel.

2. The method according to claim 1, characterized in that the first scheduling information includes: an identification of the target UE;

or,

The identification of the target UE;

The time-frequency resource location information of the data channel that can be scheduled by the first control channel.

3. The method according to claim 1, characterized in that, after the network side device sends the first scheduling information and the feedback information of the uplink data to all UEs through the first control channel, The above methods also include:

The network side device notifies all UEs of the time-frequency resource location information of the data channels that can be scheduled by the first control channel.

4. The method according to any one of claims 1 to 3, characterized in that, when the identification of the target UE in the first scheduling information is one, the network side device sends a message to the first control channel through the first control channel. All UEs send the first scheduling information and the feedback information of the uplink data; including:

The network side device performs an XOR operation on all fields or part of the resources identified by the target UE and the cyclic redundancy check code CRC in the first control channel;

The network side device sends the feedback information and the information after the XOR operation to all

5. The method according to any one of claims 1 to 3, characterized in that, in the data channel When the number of is less than the preset first threshold, and the number of control channels is greater than the preset second threshold, the method further includes:

The network side device determines second scheduling information of the second control channel, and the second scheduling information is used to allocate time-frequency resource location information in the second control channel to the target UE;

6. The method according to any one of claims 1 to 4, characterized in that,

The time-frequency resource location is the location of the virtual resource corresponding to the time-frequency resource; or, the time-frequency resource location is the physical location of the time-frequency resource; or,

The time-frequency resource position is the relative position information within the time-frequency resource range of the schedulable data channel corresponding to the control time slot in the first control channel.

7. The method according to any one of claims 1 to 6, characterized in that, the network side device sends the first scheduling information and the feedback of the uplink data to all UEs through the first control channel. Before the information, the method also includes:

The network side device determines a ratio of uplink scheduling information UI and downlink scheduling information DI in the first scheduling information, and location information of the UI and the DI in the first control channel.

8. The method according to claim 7, characterized in that,

When the UI and the DI are sent to the UE using the same control channel, the UI and the DI are distinguished by different time slot ratios; or,

The UI and the DI are sent to the UE using different control channels; or, when the UI and the DI are sent to the UE using the same control channel, the UI is carried in the control time slot of the control channel. The uplink indication is different from the downlink indication carried by the DI in the control time slot of the control channel.

9. The method according to claim 7 or 8, characterized in that, before the network side device sends the first scheduling information and the feedback information of the uplink data to all UEs through the first control channel /After that, the method also includes:

The network side device sends the ratio of the UI and the DI in the first scheduling information to all UEs; and/or,

The network side device sends the distinguishing method of the UI and the DI in the first scheduling information to all UEs; and/or, The network side device sends the maximum number of uplink time-frequency resources that can be scheduled by the UI to all UEs; and/or,

The network side device sends the maximum number of downlink time-frequency resources that can be scheduled by the DI to all UEs.

10. A data transmission method, characterized by including:

All user equipment UEs monitor the mapping relationship sent by the network side device, where the mapping relationship is the mapping relationship between the first control channel and at least one data channel;

The target UE among all UEs sends uplink data to the network side device through the at least one data channel;

The all UEs receive the first scheduling information and the feedback information of the uplink data sent by the network side device through the first control channel, and the first scheduling information is the network side device according to the mapping relationship and The identity of the target UE is obtained;

The target UE performs data transmission according to the first scheduling information, and processes the feedback information of the uplink data.

11. The method according to claim 10, characterized in that the first scheduling information includes: an identification of the target UE;

or,

The identification of the target UE;

12. The method according to claim 10, characterized in that, before the target UE performs data transmission according to the first scheduling information, the method further includes:

The all UEs receive the time-frequency resource location information sent by the network side device, and the time-frequency resource location information is the time-frequency resource location information of the data channel that can be scheduled by the first control channel.

13. The method according to any one of claims 10 to 12, wherein when the number of data channels is less than a preset first threshold and the number of control channels is greater than a preset second threshold, the method Also includes:

The all UEs receive the second scheduling information and/or the feedback information sent by the network side device through the second control channel;

Wherein, the second scheduling information is the second scheduling information of the second control channel obtained by the network side device and includes the target UE identity.

14. The method according to any one of claims 10 to 12, characterized in that,

15. The method according to any one of claims 10 to 12, characterized in that, before the target UE performs data transmission according to the first scheduling information, the method further includes:

All UEs receive the ratio of the UI and the DI in the first scheduling information sent by the network equipment, and/or,

All UEs receive the method of distinguishing the UI and the DI in the first scheduling information sent by the network equipment, and/or,

The maximum number of uplink time-frequency resources that all UEs can schedule when receiving the UI sent by the network equipment, and/or,

All UEs receive the maximum number of downlink time-frequency resources that can be scheduled by the DI sent by the network equipment.

16. A communication device, characterized by including:

memory and processor;

The memory is used to store instructions;

The processor executes instructions stored in the memory for:

Allocate a first control channel to at least one data channel, establish a mapping relationship between the first control channel and the data channel, and notify all user equipment UEs of the mapping relationship;

Allocate time-frequency resource location information to the target UE according to the mapping relationship and the identification of the target UE, and obtain first scheduling information of the at least one data channel based on the time-frequency resource location information, the first scheduling information causing the target UE to perform data transmission according to the time-frequency resource location information;

Receive uplink data sent by at least one target UE through the at least one data channel; Send the first scheduling information and the uplink data to all UEs through the first control channel Feedback information for row data.

17. The communication device according to claim 16, wherein the first scheduling information includes:

The identification of the target UE;

or,

The identification of the target UE;

18. The communication device according to claim 16, characterized in that, after the processor sends the first scheduling information and the feedback information of the uplink data to all UEs through the first control channel, used for

Notify all of the time-frequency resource location information of the data channels that can be scheduled by the first control channel

19. The communication device according to any one of claims 16 to 18, characterized in that, when the identification of the target UE in the first scheduling information is one, the processor sends a message to the first control channel through the first control channel. All UEs send the first scheduling information and the feedback information of the uplink data; including: the processor comparing all fields or part of resources identified by the target UE with cyclic redundancy in the first control channel; Check the code CRC for XOR operation;

The feedback information and the information after the XOR operation are sent to all UEs.

20. The communication device according to any one of claims 16 to 18, wherein when the number of data channels is less than a preset first threshold and the number of control channels is greater than a preset second threshold, the The processor is also used for:

Determine second scheduling information of the second control channel, the second scheduling information being used to allocate time-frequency resource location information in the second control channel to the target UE;

Send the second scheduling information and/or the feedback information to all UEs through the second control channel.

21. The communication device according to any one of claims 16 to 19, characterized in that the location of the time-frequency resource is the location of the virtual resource corresponding to the time-frequency resource; or,

The time-frequency resource location is the physical location of the time-frequency resource; or,

22. The communication device according to any one of claims 16 to 21, wherein the processor sends the first scheduling information and the feedback of the uplink data to all UEs through the first control channel. before information, also used for

Determine the ratio of the uplink scheduling information UI and the downlink scheduling information DI in the first scheduling information, and the location information of the UI and the DI in the first control channel.

23. The communication device according to claim 22, characterized in that, when the UI and the DI are sent to the UE using the same control channel, the UI and the DI are distinguished by different time slot ratios; or,

The UI and the DI are sent to the UE using different control channels; or,

When the UI and the DI are sent to the UE using the same control channel, the uplink indication carried by the UI in the control time slot of the control channel is different from the downlink indication carried by the DI in the control time slot of the control channel. instruct.

24. The communication device according to claim 22 or 23, characterized in that, before the processor sends the first scheduling information and the feedback information of the uplink data to all UEs through the first control channel, After /, also used for:

Send the ratio of the UI and the DI in the first scheduling information to all UEs; and

/or,

Send the distinction between the UI and the DI in the first scheduling information to all UEs; and/or,

Send the maximum number of uplink time-frequency resources that can be scheduled by the UI to all UEs; and/or send the maximum number of downlink time-frequency resources that can be scheduled by the DI to all UEs.

25. A user equipment, characterized by: including:

memory and processor;

The memory is used to store instructions;

The processor executes instructions stored in the memory for:

Monitor the mapping relationship sent by the network side device, where the mapping relationship is the mapping relationship between the first control channel and at least one data channel;

When the user equipment UE is the target UE, sending uplink data to the network side device through the at least one data channel,

Receive first scheduling information sent by the network side device through the first control channel and the Feedback information of uplink data, the first scheduling information is obtained by the network side device according to the mapping relationship and the identity of the target UE;

Perform data transmission according to the first scheduling information, and process the feedback information of the uplink data.

26. The user equipment according to claim 25, characterized in that, the first scheduling information includes: an identification of the target UE;

or,

The identification of the target UE;

27. The user equipment according to claim 25, characterized in that, before the processor performs data transmission according to the first scheduling information, it is also configured to:

Receive time-frequency resource location information sent by the network side device, where the time-frequency resource location information is time-frequency resource location information of a data channel that can be scheduled by the first control channel.

28. The user equipment according to any one of claims 25 to 27, wherein when the number of data channels is less than a preset first threshold and the number of control channels is greater than a preset second threshold, the The processor is also used

Receive the second scheduling information and/or the feedback information sent by the network side device through the second control channel;

Perform data transmission according to the second scheduling information, and/or process the feedback information.

29. The user equipment according to any one of claims 25 to 27, wherein the time-frequency resource location is the location of the virtual resource corresponding to the time-frequency resource; or,

30. The user equipment according to any one of claims 25 to 27, characterized in that, before the processor performs data transmission according to the first scheduling information, it is also configured to:

Receive the ratio of the UI and the DI in the first scheduling information sent by the network side device, and/or,

Receive the area of the UI and the DI in the first scheduling information sent by the network side device. method, and/or,

Receive the maximum number of uplink time-frequency resources that can be scheduled by the UI sent by the network side device, and/or,

Receive the maximum number of downlink time-frequency resources that can be scheduled by the DI sent by the network side device.

31. A communication device, characterized by: including:

An allocation unit, configured to allocate a first control channel to at least one data channel;

An establishment unit, configured to establish a mapping relationship between the first control channel and the data channel according to the first control channel allocated by the allocation unit;

a sending unit, configured to notify all user equipments UE of the mapping relationship established by the establishing unit; a scheduling information generating unit, configured to allocate time-frequency resources to the target UE according to the mapping relationship established by the establishing unit and the identification of the target UE location information, and obtain the first scheduling information of the at least one data channel based on the time-frequency resource location information, and the first scheduling information enables the target UE to perform data transmission based on the time-frequency resource location information;

A receiving unit configured to receive uplink data sent by at least one target UE through the at least one data channel;

The sending unit is further configured to send the first scheduling information and the feedback information of the uplink data to all UEs through the first control channel.

32. The communication device according to claim 31, wherein the first scheduling information includes: an identification of the target UE;

or,

The identification of the target UE;

33. The communication device according to claim 31, characterized in that the sending unit is also used to

After sending the first scheduling information and the feedback information of the uplink data to all UEs through the first control channel, notify all UEs of the time-frequency resource location information of the data channels that can be scheduled by the first control channel. UE.

34. The communication device according to any one of claims 31 to 33, characterized in that, when there is one identifier of the target UE in the first scheduling information, the sending unit sends all fields of the identifier of the target UE. Or part of the resources are combined with the cyclic redundancy check code CRC in the first control channel XOR operation;

and send the feedback information and the information after the XOR operation to all UEs.

35. The communication device according to any one of claims 31 to 33, wherein when the number of data channels is less than a preset first threshold and the number of control channels is greater than a preset second threshold, the Scheduling information generation unit, also used for

The sending unit is further configured to send the second scheduling information and/or the feedback information to all UEs through the second control channel.

36. The communication device according to any one of claims 31 to 34, wherein the time-frequency resource location is the location of the virtual resource corresponding to the time-frequency resource; or,

37. The communication device according to any one of claims 31 to 36, characterized in that the communication device further includes: a determining unit;

The determining unit is configured to determine a ratio of uplink scheduling information UI and downlink scheduling information DI in the first scheduling information, and location information of the UI and the DI in the first control channel.

38. The communication device according to claim 37, characterized in that, when the UI and the DI are sent to the UE using the same control channel, the UI and the DI are distinguished by different time slot ratios; or,

The UI and the DI are sent to the UE using different control channels; or,

39. The communication device according to claim 37 or 38, characterized in that the sending unit is also used to

/or,

Send the distinction between the UI and the DI in the first scheduling information to all UEs; and / or,

40. A user equipment, characterized by: including:

The receiving unit is configured to monitor the mapping relationship sent by the network side device, where the mapping relationship is the mapping relationship between the first control channel and at least one data channel;

A sending unit, configured to send uplink data to the network side device through the at least one data channel when the user equipment UE is the target UE;

The receiving unit is configured to receive the first scheduling information and the feedback information of the uplink data sent by the network side device through the first control channel after the sending unit sends the uplink data, and the first A scheduling information is the network side device according to the mapping relationship and the target

The identity of the UE is obtained;

A processing unit, configured to perform data transmission according to the first scheduling information after the receiving unit receives the first scheduling information, and process the feedback information of the uplink data.

41. The user equipment according to claim 40, characterized in that the first scheduling information includes: an identification of the target UE;

or,

The identification of the target UE;

42. The user equipment according to claim 40, characterized in that the receiving unit is also used to

Before the processing unit performs data transmission, the time-frequency resource location information sent by the network side device is received, where the time-frequency resource location information is the time-frequency resource location information of the data channel that can be scheduled by the first control channel.

43. The user equipment according to any one of claims 40 to 42, wherein when the number of data channels is less than a preset first threshold and the number of control channels is greater than a preset second threshold, the receiving unit, also for

44. The user equipment according to any one of claims 40 to 42, wherein the time-frequency resource location is the location of the virtual resource corresponding to the time-frequency resource; or, the time-frequency resource location is the The physical location of the time-frequency resource; or,

45. The user equipment according to any one of claims 40 to 42, characterized in that the receiving unit is also used to

Before the processing unit performs data transmission, receive the ratio of the UI and the DI in the first scheduling information sent by the network side device, and/or,

Receive a method for distinguishing the UI and the DI in the first scheduling information sent by the network side device, and/or,