WO2016019557A1

WO2016019557A1 - Resource allocation method, user direct-linked communication method and device

Info

Publication number: WO2016019557A1
Application number: PCT/CN2014/083931
Authority: WO
Inventors: 刘德平; 李强
Original assignee: 华为技术有限公司
Priority date: 2014-08-07
Filing date: 2014-08-07
Publication date: 2016-02-11
Also published as: CN105612799A; CN105612799B

Abstract

A resource allocation method, user direct-linked communication method and device, the resource allocation method comprising: a Node B transmits first scheduling information to a user equipment (UE), the first scheduling information being used to indicate a start position where the scheduling allocation SA of the UE occupies a frequency band, and also being used to indicate the start position where the data of the UE occupies the frequency band, the width of the frequency band occupied by the SA being equal to the width of the frequency band occupied by the SA corresponding to other UEs in the coverage range of the Node B, and the width of the frequency band occupied by the data being equal to the width of the frequency band occupied by the data corresponding to other UEs in the coverage range of the Node B. The scheduling information of the Node B in an embodiment of the present invention only needs to indicate the start positions where the SA and data of the UE respectively occupy the frequency band; therefore, the UE can be accurately and efficiently scheduled to transmit the SA and the data, thus reducing the signaling overhead of the Node B.

Description

Resource configuration method, user direct communication method and device

Technical field

The present invention relates to the field of communications technologies, and in particular, to a resource configuration method, a user direct connection communication method, and a device. Background technique

In the traditional Long Term Evolution (LTE) communication technology, the signaling and data interaction between the user equipment or the user equipment (UE) needs to go through the evolved Node B (eNB). Or base station).

User direct communication (device to device, Device to Device, D2D) is a direct communication technology. Data interaction between UEs does not need to be forwarded by the eNB. It can directly interact with the UE or assist the network. Direct interaction.

LTE-D2D is the 3rd Generation Partnership Project.

3GPP) newly defined LTE-based terminal direct communication technology, LTE-D2D communication technology is an application that adds D2D in existing LTE systems, that is, user direct communication and LTE communication can coexist, as shown in FIG. -D2D communication diagram, wherein the process of transmitting communication data by the transmitting terminal and receiving the communication data by the eNB is called uplink communication; the process of transmitting communication data by _e NB, receiving communication data by UE1 is called downlink communication; UE1 is acting as data transmitter, and TX UE UE with RX UE

The communication between the UEs is the direct communication of the user. When the user direct communication D2D is performed, the eNB configures the resource pool to be sent to the terminal, or instructs the UE (the TX UE, the transmitting terminal) to transmit the scheduling assignment to the UE (the RX UE, the receiving terminal). And the resources and formats of the data.

There are three working scenarios for user direct communication, which are network coverage.

(in-network-coverage), no-of-network-covemge, and in-partial-network-covemg, in the network coverage work scenario, participating in user direct communication The terminals are all within the coverage of the network; in the scenario without network coverage, the terminals participating in the direct communication of the users are outside the coverage of the network; In the middle, part of the terminals participating in the direct communication of the user are within the coverage of the network, and the other part is outside the coverage of the network.

User direct communication is divided into two main application modes/types: D2D discovery and D2D communication.

The D2D communication means that the terminal sends the Scheduling Assignment (SA) information and data, and the other terminal obtains the resources, the transmission format, and the like of the data indicated by the SA by reading the SA information, so as to correctly receive the subsequent data information.

D2D communication is divided into two modes (mode):

Mode 1 (Mode 1): The eNB or relay (relay) node scheduling terminal is used to transmit data of direct communication data and control information, and is applied to a network coverage or partial network coverage scenario.

Mode 2: The terminal itself selects resources for transmitting direct communication data and control information from the resource pool, and applies to the network coverage, partial network coverage, or no network coverage.

In the D2D communication mode, the base station indicates the resources and format of the scheduling allocation and data by the user equipment through downlink signaling. However, how to enable the base station to efficiently indicate to the user equipment the resources for transmitting the scheduling assignment and data has become an urgent problem to be solved.

Summary of the invention

Embodiments of the present invention provide a resource configuration method, a user direct connection communication method, and a device, so that a base station efficiently instructs a user equipment to send a resource for scheduling allocation and data.

In a first aspect, a resource configuration method is provided, including:

The base station sends the first scheduling information to the user equipment UE, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate data occupation of the UE. The starting position of the frequency band;

The width of the SA occupied frequency band is equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; the width of the data occupied frequency band and the data occupied frequency band corresponding to other UEs in the coverage of the base station The width is equal. In a possible implementation manner, the first scheduling information is downlink control information or high layer signaling.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the method further includes:

The first scheduling information is further used to indicate the number of retransmissions of the SA or data; or

Sending, by the base station, a pattern indication message to the UE, where the pattern indication message is used to indicate the

a pattern used by the UE to transmit the SA or data, the pattern containing information of the number of retransmissions of the SA or data;

The number of retransmissions is the number of time resource units occupied by the SA or the data. In conjunction with the second possible implementation of the first aspect, in a third possible implementation, the pattern indication message is used to indicate the sequence number of the pattern. The second aspect provides a resource configuration method, including:

The base station indicates, by using a bit field or higher layer signaling of the downlink control information, a scheduling allocation of the user equipment UE and/or a resource allocation manner of the data;

The base station sends the first scheduling information to the UE, where the first scheduling information is used to indicate that the first scheduling information is further used to indicate that the data of the UE is occupied in a corresponding resource allocation mode and/or Or a frequency domain resource unit.

In a first possible implementation, the first scheduling information includes a start location message, where the start location message is used to indicate that the scheduling allocation of the UE is in the beginning of the occupied frequency band in the corresponding resource allocation mode. The first scheduling information is further used to indicate that the data of the UE occupies a starting position of a frequency band in a corresponding resource allocation manner.

In conjunction with the second aspect or the first possible implementation of the second aspect, in a second possible implementation:

The resource allocation manner is a frequency domain granularity of the SA and/or data occupation; and/or

The resource allocation manner is a time domain granularity of the SA and/or data occupation; and/or

The resource allocation mode is a pattern of the SA and/or data usage.

With reference to the second aspect, in a third possible implementation, the method further includes: The base station indicates, by using a bit field or a high layer signaling of the downlink control information, a difference in the number of time domain time units of the data of the UE relative to the scheduling. In a third aspect, a resource configuration method is provided, including:

The base station sends the configuration information to the user equipment UE, where the configuration information is used to indicate the time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation manner, and the at least one second resource pool corresponds to the second resource. Allocation;

The base station sends a resource pool indication message to the UE, where the resource pool indication message is used to indicate the at least one first resource pool or at least one second resource that is allocated to the UE to send a scheduling allocation SA and/or data. Pool

The base station sends the first scheduling information to the UE, where the first scheduling information is used to indicate a time domain and/or in the at least one first resource pool or at least one second resource pool occupied by the SA of the UE. Or the frequency domain resource; and/or the first scheduling information is further used to indicate time domain and/or frequency domain resources in the at least one first resource pool or the at least one second resource pool occupied by data of the UE .

In the first possible implementation:

The first scheduling information includes a start location message, where the start location message is used to indicate that the SA occupies a starting location of a frequency band in the at least one first resource pool or at least one second resource pool; and Or the starting location message is used to indicate that the data occupies a starting location of a frequency band in the at least one first resource pool or the at least one second resource pool.

In conjunction with the third aspect or the first possible implementation of the third aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage. The fourth aspect provides a user direct communication method, including:

The first user equipment UE receives the first scheduling message sent by the base station, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate the UE The data occupies the starting position of the frequency band; Transmitting, by the first UE, the SA to a second UE at a starting position of the SA occupied frequency band according to the first scheduling information, and sending a start location of the frequency band occupied by the data to the second UE Sending the data;

The width of the SA occupied frequency band is equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; the width of the data occupied frequency band and the data occupied frequency band corresponding to other UEs in the coverage of the base station The width is equal.

In a first possible implementation manner, the first scheduling information is downlink control information or a high-level signaling.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the method further includes:

Transmitting, by the first UE, the SA or data to the second UE according to the number of retransmissions of the SA or data indicated by the first scheduling information; or

The first UE receives a pattern indication message sent by the base station, where the pattern indication message is used to indicate a pattern used by the first UE to transmit the SA or data, where the pattern includes the weight of the SA or data. Information on the number of transmissions;

Transmitting, by the first UE, the SA or data to the second UE according to the information of the number of retransmissions;

The number of retransmissions is the number of time resource units occupied by the SA or the data. In conjunction with the second possible implementation of the fourth aspect, in a third possible implementation, the pattern indication message is used to indicate a sequence number of the pattern. In a fifth aspect, a method for direct communication of a user is provided, including:

The first user equipment UE receives the scheduling allocation of the user equipment UE indicated by the bit field or the high layer signaling of the downlink control information, and/or the resource allocation manner of the data;

The first UE receives the first scheduling information sent by the base station, where the first scheduling information is used and/or the first scheduling information is further used to indicate that the data of the UE is occupied by the corresponding resource allocation mode. Time domain and/or frequency domain resource unit; Sending the SA to the second UE; and/or transmitting, by the first UE, the data to the second UE on a time domain and/or a frequency domain resource occupied by the resource allocation mode corresponding to the data.

In a first possible implementation, the first scheduling information includes a start location message; the SA is sent to the second UE; and/or the first UE is in a resource allocation manner corresponding to the data. And sending, by the second UE, the data to the second UE, where the second UE sends the SA; and/or the resource allocation manner of the first UE in the data. The starting position of the lower occupied frequency band transmits the data to the second UE.

In conjunction with the fifth aspect or the first possible implementation of the fifth aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage.

With reference to the fifth aspect, in a third possible implementation, the method further includes: receiving, by the base station, a bit field or a high layer signaling of the downlink control information, indicating that the data is allocated with respect to the scheduling The number of domain time units is poor;

And sending the scheduling allocation and data to the second according to the difference in the number of time domain time units

UE. In a sixth aspect, a method for direct communication of a user is provided, including:

The first user equipment UE receives the configuration information sent by the base station, where the configuration information is used to indicate the time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation manner, and the at least one second resource pool corresponds to the at least one second resource pool. Second resource allocation method;

Receiving, by the first UE, a resource pool indication message sent by the base station, where the resource pool indication message is used to indicate the at least one first resource pool that is allocated to the first UE to send a scheduling allocation SA and/or data or At least one second resource pool;

The first UE receives the first scheduling information that is sent by the base station, where the first scheduling information is used to indicate the at least one first resource pool or at least one second resource that is occupied by the SA of the first UE. a time domain and/or a frequency resource in the pool; and/or the first scheduling information is further used to indicate that the data of the first UE is occupied by the at least one first resource pool or at least one second resource pool Time domain and/or frequency domain resources;

Sending, by the first UE, the SA to a second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the SA; and/or The first UE sends the data to the second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the data.

In a first possible implementation manner, the first scheduling information includes a start location message, where the first UE is in the at least one first resource pool or at least one second resource pool occupied by the SA Transmitting the SA to the second UE on the time domain and/or the frequency domain resource; and/or when the first UE is in the at least one first resource pool or the at least one second resource pool occupied by the data Sending the data to the second UE on the domain and/or the frequency domain resource, specifically:

Transmitting, by the first UE, the SA to a second UE in a starting position of a frequency band in the at least one first resource pool or the at least one second resource pool occupied by the SA; and/or the first UE Transmitting the data to the second UE at a starting location of a frequency band in the at least one first resource pool or the at least one second resource pool occupied by the data.

In conjunction with the sixth aspect or the first possible implementation of the sixth aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage. In a seventh aspect, a base station is provided, including:

a sending unit, configured to send the first scheduling information to the user equipment UE, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate the The data of the UE occupies the starting position of the frequency band;

In conjunction with the seventh aspect or the first possible implementation of the seventh aspect, in a second possible implementation:

The sending unit is further configured to send, to the UE, a pattern indication message, where the pattern indication message is used to indicate a pattern used by the UE to transmit the SA or data, where the pattern includes retransmission of the SA or data. Information of the number of times;

The number of retransmissions is the number of time resource units occupied by the SA or the data. In conjunction with the second possible implementation of the seventh aspect, in a third possible implementation, the pattern indication message is used to indicate a sequence number of the pattern. In an eighth aspect, a base station is provided, including:

In conjunction with the eighth aspect or the first possible implementation of the eighth aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage.

In conjunction with the eighth aspect, in a third possible implementation: The sending unit is further configured to indicate, by using a bit field or a high layer signaling of the downlink control information, a difference in the number of time domain time units of the data of the UE with respect to scheduling. In a ninth aspect, a base station is provided, including:

a sending unit, configured to send configuration information to the user equipment UE, where the configuration information is used to indicate a time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation manner, and the at least one second resource pool Corresponding to the second resource allocation mode;

The sending unit is further configured to send a resource pool indication message to the UE, where the resource pool indication message is used to indicate the at least one first resource pool or at least allocated to the UE to send a scheduling allocation SA and/or data. a second resource pool;

The sending unit is further configured to send the first scheduling information to the UE, where the first scheduling information is used to indicate that the SA of the UE is occupied by the at least one first resource pool or at least one second resource pool. a time domain and/or a frequency domain resource; and/or the first scheduling information is further used to indicate a time domain and/or in the at least one first resource pool or the at least one second resource pool occupied by data of the UE Or frequency domain resources.

In the first possible implementation:

In conjunction with the ninth aspect or the first possible implementation of the ninth aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage. In a tenth aspect, a user equipment is provided, including:

a receiving unit, configured to receive a first scheduling message sent by the base station, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to refer to Describe the starting position of the data occupied frequency band of the UE;

a sending unit, configured to send, according to the first scheduling information, the SA to a second UE at a starting position of the SA occupied frequency band, and to a start location of the frequency band occupied by the data to the second UE Sending the data;

With reference to the tenth aspect, or the first possible implementation manner of the tenth aspect, in the second possible implementation manner, the user equipment further includes:

a first retransmission unit, configured to retransmit the SA or data to the second UE according to the number of retransmissions of the SA or data indicated by the first scheduling information; or

The receiving unit is further configured to receive a pattern indication message sent by the base station, where the pattern indication message is used to indicate a pattern used by the first UE to transmit the SA or data, where the pattern includes the SA or data Information on the number of retransmissions;

The user equipment further includes:

a second retransmission unit, configured to retransmit the SA or data to the second UE according to the information about the number of retransmissions;

The number of retransmissions is the number of time resource units occupied by the SA or the data. In conjunction with the second possible implementation of the tenth aspect, in a third possible implementation, the pattern indication message is used to indicate a sequence number of the pattern. In an eleventh aspect, a user equipment is provided, including:

a receiving unit, configured to receive, by the receiving unit, the first scheduling information that is sent by the base station by using the bit field or the high layer signaling of the downlink control information, where the first scheduling information unit is sent by the base station; and/or The first scheduling information is further used to indicate that the data of the UE is in a corresponding resource allocation side. a time domain and/or a frequency domain resource unit occupied by the method; the SA is sent to the second UE on the source; and/or the time domain occupied by the first UE in the resource allocation mode corresponding to the data, and/or Transmitting the data to the second UE on a frequency domain resource.

In a first possible implementation, the first scheduling information includes a start location message, and the sending unit is specifically configured to:

The starting location transmits the data to the second UE.

In conjunction with the first possible implementation of the eleventh or eleventh aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage.

In conjunction with the eleventh aspect, in a third possible implementation:

The receiving unit is further configured to receive, by the base station, a bit field or high layer signaling of the downlink control information, indicating a difference in the number of time domain time units allocated by the data with respect to the scheduling;

The sending unit is further configured to sequentially send the scheduling assignment and data to the second UE according to the difference in the number of time domain time units. According to a twelfth aspect, a user equipment is provided, including:

a receiving unit, configured to receive configuration information sent by the base station, where the configuration information is used to indicate a time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation manner, and the at least one second resource pool corresponds to Second resource allocation method;

The receiving unit is further configured to receive a resource pool indication message sent by the base station, where the resource pool indication message is used to indicate the at least one first resource that is allocated to the first UE to send a scheduling allocation SA and/or data. a pool or at least one second resource pool;

The receiving unit is further configured to receive the first scheduling information that is sent by the base station, where the first scheduling information is used to indicate the at least one first resource pool or at least one of the first UEs occupied by the SA of the first UE. The time domain and/or the frequency domain resource in the second resource pool; and/or the first scheduling information is further used to indicate the at least one first resource pool or the at least one second resource occupied by the data of the first UE Time domain and/or frequency domain resources in the pool;

a sending unit, configured to send the SA to a second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the SA; and/or The first UE sends the data to the second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the data.

Transmitting the SA to a second UE in a start position of a frequency band in the at least one first resource pool or at least one second resource pool occupied by the SA; and/or the first UE is in the data occupation The starting location of the frequency band in the at least one first resource pool or the at least one second resource pool sends the data to the second UE.

In conjunction with the twelfth aspect or the first possible implementation of the twelfth aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage. A thirteenth aspect, a base station is provided, including: a transmitter;

a transmitter, configured to send the first scheduling information to the user equipment UE, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate the The data of the UE occupies the starting position of the frequency band;

In a possible implementation, the first scheduling information is downlink control information or a high-level signaling.

In combination with the thirteenth aspect or the first possible implementation of the thirteenth aspect, in the second possible In the implementation mode:

The transmitter is further configured to send a pattern indication message to the UE, where the pattern indication message is used to indicate a pattern used by the UE to transmit the SA or data, where the pattern includes retransmission of the SA or data. Information of the number of times;

The number of retransmissions is the number of time resource units occupied by the SA or the data. With reference to the second possible implementation manner of the thirteenth aspect, in a third possible implementation manner, the pattern indication message is used to indicate a sequence number of the pattern. In a fourteenth aspect, a base station is provided, including: a transmitter;

And a transmitter, configured to indicate, by using a bit field or a high layer signaling of the downlink control information, a scheduling allocation of the user equipment UE and/or a resource allocation manner of the data;

The transmitter is further configured to send the first scheduling information to the UE, where the first scheduling information is used and/or the first scheduling information is further used to indicate that the data of the UE is in a corresponding resource allocation manner. Occupied time domain and / or frequency domain resource unit.

In conjunction with the fourteenth aspect or the first possible implementation of the fourteenth aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage.

In conjunction with the fourteenth aspect, in a third possible implementation:

The transmitter is further configured to indicate, by using a bit field or a high layer signaling of the downlink control information, a difference in the number of time domain time units allocated by the data of the UE relative to the scheduling. In a fifteenth aspect, a base station is provided, including: a transmitter;

a transmitter, configured to send configuration information to the user equipment UE, where the configuration information is used to indicate a time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation manner, and the at least one second resource pool Corresponding to the second resource allocation mode;

The transmitter is further configured to send a resource pool indication message to the UE, where the resource pool indicates a message pool or at least one second resource pool;

The transmitter is further configured to send the first scheduling information to the UE, where the first scheduling information is used to indicate that the SA of the UE is occupied by the at least one first resource pool or at least one second resource pool. a time domain and/or a frequency domain resource; and/or the first scheduling information is further used to indicate a time domain and/or in the at least one first resource pool or the at least one second resource pool occupied by data of the UE Or frequency domain resources.

In the first possible implementation:

In conjunction with the fifteenth aspect or the first possible implementation of the fifteenth aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage. In a sixteenth aspect, a user equipment is provided, including: a receiver and a transmitter;

a receiver, configured to receive a first scheduling message sent by the base station, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting location of the SA occupied frequency band; the first scheduling information is further used to indicate the UE The data occupies the starting position of the frequency band;

a transmitter, configured to send, according to the first scheduling information, the SA to a second UE at a starting position of the SA occupied frequency band, and to a second UE at a starting position of a frequency band occupied by the data Sending the data;

In conjunction with the sixteenth aspect or the first possible implementation of the sixteenth aspect, in a second possible implementation:

The transmitter is further configured to retransmit the SA or the data to the second UE according to the number of retransmissions of the SA or data indicated by the first scheduling information; or

The receiver is further configured to receive a pattern indication message sent by the base station, where the pattern indication message is used to indicate a pattern used by the first UE to transmit the SA or data, where the pattern includes the SA or data Information on the number of retransmissions;

The transmitter is further configured to retransmit the SA or data to the second UE according to the information about the number of retransmissions;

The number of retransmissions is the number of time resource units occupied by the SA or the data. In conjunction with the second possible implementation of the sixteenth aspect, in a third possible implementation, the pattern indication message is used to indicate a sequence number of the pattern. In a seventeenth aspect, a user equipment is provided, including: a receiver and a transmitter;

a receiver, configured to receive, by the base station, a scheduling allocation of the user equipment UE indicated by the bit field or the high layer signaling of the downlink control information, and/or a resource allocation manner of the data;

The receiver is further configured to receive first scheduling information sent by the base station, the first scheduling information element; and/or the first scheduling information is further used to indicate that the data of the UE is in a corresponding resource allocation manner The time domain and/or the frequency domain resource unit that is occupied; the SA is sent to the second UE; and/or the time domain and/or the frequency domain occupied by the first UE in the resource allocation mode corresponding to the data The data is sent to the second UE on a resource. In a first possible implementation, the first scheduling information includes a start location message; the SA is sent to a second UE on a domain and/or a frequency domain resource; and/or the first UE is in the The step of sending the data to the second UE in the time domain and/or the frequency domain resource occupied by the resource allocation mode corresponding to the data is specifically:

Transmitting, by the second UE, the SA; and/or the first UE sends the data to the second UE in a starting position of a frequency band occupied by a resource allocation manner corresponding to the data.

In conjunction with the seventeenth aspect or the first possible implementation of the seventeenth aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage.

In combination with the seventeenth aspect, in a third possible implementation:

The receiver is further configured to receive, by the base station, a bit field or a high layer signaling of the downlink control information, indicating a difference in the number of time domain time units allocated by the data with respect to the scheduling;

The transmitter is further configured to sequentially send the scheduling allocation and data to the second UE according to the difference in the number of time domain time units. According to an eighteenth aspect, a user equipment is provided, including: a receiver and a transmitter;

a receiver, configured to receive configuration information sent by the base station, where the configuration information is used to indicate a time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation manner, and the at least one second resource pool corresponds to Second resource allocation method;

The receiver is further configured to receive a resource pool indication message sent by the base station, where the resource pool indication message is used to indicate the at least one first resource that is allocated to the first UE to send a scheduling allocation SA and/or data. a pool or at least one second resource pool;

The receiver is further configured to receive the first scheduling information that is sent by the base station, where the first scheduling information is used to indicate the at least one first resource pool or at least one second resource that is occupied by the SA of the first UE. a time domain and/or a frequency domain resource in the pool; and/or the first scheduling information is further used to indicate the first Time domain and/or frequency domain resources in the at least one first resource pool or at least one second resource pool occupied by data of the UE;

a transmitter, configured to send the SA to a second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the SA; and/or The first UE sends the data to the second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the data.

In a first possible implementation manner, the first scheduling information includes a start location message, where the sender performs the at least one first resource pool or at least one of the first UE occupied by the SA Sending the SA to the second UE on the time domain and/or the frequency domain resource in the second resource pool; and/or the at least one first resource pool or at least one second occupied by the first UE in the data The step of sending the data to the second UE on the time domain and/or the frequency domain resource in the resource pool is specifically:

In conjunction with the eighteenth aspect or the first possible implementation of the eighteenth aspect, in a second possible implementation:

The resource allocation mode is a pattern of the SA and/or data usage.

According to an embodiment of the present invention, a resource configuration method, a user direct connection communication method, and a device are configured to make a width of a scheduling allocation occupied frequency band equal to a width of a scheduling allocation occupied frequency band corresponding to other user equipments in a coverage area of a base station, and The width of the data occupied frequency band is equal to the width of the data occupied frequency band corresponding to other user equipments in the coverage of the base station, and the scheduling information of the base station only needs to indicate the scheduling allocation of the user equipment and the starting position of the data occupied by the frequency band respectively, Efficiently scheduling user equipment to send scheduling assignments and data, saving signaling overhead of the base station. DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

Figure 1 is a schematic diagram of LTE-D2D communication;

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

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

4 is a flowchart of still another resource configuration method according to an embodiment of the present invention;

Figure 5a is an example two-dimensional resource pattern;

Figure 5b is an example one-dimensional time domain pattern;

FIG. 6 is a flowchart of still another resource configuration method according to an embodiment of the present invention;

FIG. 7 is a flowchart of a method for direct communication of a user according to an embodiment of the present invention;

FIG. 8 is a flowchart of another method for direct communication of a user according to an embodiment of the present invention; FIG. 9 is a flowchart of still another method for direct communication of a user according to an embodiment of the present invention; A flowchart of a user direct communication method; FIG. 11 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of another base station according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of still another user equipment according to an embodiment of the present invention. detailed description

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

In an existing solution, the base station separately indicates the transmitting terminal to send through multiple signalings. Scheduling allocation or data, the number of available bits is large, and the efficiency problem is not outstanding. In another existing solution, the base station passes a signaling, which may be downlink control information (Downlink Control)

Information, DCI), for example, DCIO can support two frequency domain resources at the same time, but since the two resources occur in one time unit, there is a correlation between them, and the two resources are separated into one block and overlapped.

In the embodiment of the present invention, the base station needs to indicate the terminal to send the scheduling allocation and the data resource through a signaling, that is, the bit field or the high layer signaling of the downlink control information indicates that the terminal sends the scheduling allocation and the data, but the two pieces of data are due to the time. The transmission is staggered, so the occupied resources are completely independent, so the frequency domain resources occupied by the SA and the data may overlap partially or completely. The number of bits in the SA is relatively small, and the number of occupied frequency domain resources can be fixed; and the amount of resources allocated by the data is variable.

If the bandwidth of the data resource is variable, a common approach is to use an embedded solution. For example, the bandwidth of the data is an integral multiple of the basic granularity. When the scheduling bandwidth is greater than the basic granularity, the embedded ( nested) scheme can be used. That is, when the scheduling bandwidth is greater than the basic granularity, it can be regarded as scheduling multiple basic granularities simultaneously. Frequency domain resources, while the existing single carrier characteristics require that the entire scheduling bandwidth of one terminal device is continuous, that is, the embedded solution requires multiple frequency domain resources of basic granularity to be connected, when multiple times in time When transmitting, it is required that once adjacent at one time, it needs to be adjacent at other times, and the relative positional relationship does not change. D2D's unique in-band leakage problem: If the pattern A and the frequency resource of the pattern B are adjacent at a certain moment, considering the problem of in-band leakage, it is necessary or preferable that the next moment is not adjacent, The role of interference randomization. It can be concluded from the above two points that the embedded scheme has conflicting requirements for the frequency domain resource allocation of D2D communication, and it is impossible to design a pattern or greatly increase the complexity of the pattern design. FIG. 2 is a flowchart of a resource configuration method according to an embodiment of the present invention. The method includes the following steps:

Step S101: The base station sends first scheduling information to the user equipment UE, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the occupied frequency band of the SA; a starting location for indicating that the data of the UE occupies a frequency band;

When the UE performs D2D communication, the working mode of the UE may be configured. For example, the UE may work in mode 1 or mode 2 of the D2D. In this embodiment, the base station configures the mode in which the UE works in the D2D mode, that is, the eNB or the relay node schedules the resources used by the UE to transmit the direct communication data and control information, and is applied to the scenario of network coverage or partial network coverage.

In this embodiment, the width of the SA occupied frequency band is equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; the width of the data occupied frequency band is equal to the width of the data occupied frequency band corresponding to other UEs in the coverage of the base station, In this way, the scheduling information sent by the base station to the UE only needs to indicate the starting position of the frequency band occupied by the SA and the data respectively, and the base station can explicitly instruct the UE to send the scheduling allocation and data by using a small number of bits, thereby saving the base station's letter. Make the cost. The scheduling information of the base station may be downlink control information or higher layer signaling. Since the UE transmits the scheduling assignment and the data does not occur simultaneously in time, the frequency bands occupied by the SA and the data respectively may partially or completely overlap.

It can be seen that a resource configuration method according to an embodiment of the present invention, by making the width of the scheduling allocated occupied frequency band equal to the width of the scheduling allocated occupied frequency band corresponding to other user equipments in the coverage of the base station, and making the width of the data occupied frequency band and The data occupied by other user equipments in the coverage of the base station has the same width of the frequency band. The scheduling information of the base station only needs to indicate the scheduling allocation of the user equipment and the starting position of the frequency band occupied by the data respectively, so that the user equipment can be dispatched explicitly and efficiently. The allocation and data save the signaling overhead of the base station. FIG. 3 is a flowchart of another resource configuration method according to an embodiment of the present invention. The method includes the following steps:

Step S201, the base station sends first scheduling information to the user equipment UE, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the occupied frequency band of the SA; a starting location for indicating that the data of the UE occupies a frequency band;

Step S201 is the same as step S101 of the foregoing embodiment, and details are not described herein again.

Step S202, the base station sends a pattern indication message to the UE, where the pattern indication message is used to indicate a pattern used by the UE to transmit the SA or data, where the pattern includes retransmission times of the SA or data. Information;

The number of retransmissions is the number of time resource units occupied by the SA or the data. In this embodiment, when the number of frequency resources is the same, the size of the transport block (Tranport Block, TB) may be different. If the number of transmissions in the time domain is the same, the receiving UE may receive different sizes of TB data. The receiving performance is different. In addition, when the terminal performs D2D data transmission, if the transmission power is controlled, the transmitting power of the transmitting UE may change with time, which may cause the transmitting UE to receive even if it transmits the same long transmission block. The receiving performance of the UE when receiving a transport block is also different. Therefore, in order to enable the receiving UE to have a different receiving block size when receiving the transmitting block size of the transmitting UE and/or when the transmitting UE performs the transmit power control, the length may be increased and/or the transmitting power may be increased. The number of retransmissions of the smaller transport block adjusts the final code rate. Therefore, the base station determines the number of retransmissions of the data according to the preset parameters.

The preset parameter may include: any one or any combination of a signal to noise ratio, a number of bits of the transport block, or a retransmission number mapping table of the data.

The base station may send a pattern indication message to the UE, indicating a pattern used by the UE to transmit the SA or the data, where the pattern includes information of the retransmission times of the SA or the data, where the number of retransmissions is the number of time resource units occupied by the transmission SA or the data. Specifically, the pattern indication message may be used to indicate the serial number of the pattern. The resource allocation manner indicated by the base station to the UE may be a pattern, which is a finite-length two-dimensional resource sequence including one or more time-frequency domains, and/or a finite-length one-dimensional resource sequence in the frequency domain, and/or time A finite-length one-dimensional resource sequence of a domain, when the base station indicates a pattern used by the UE, transmitting The UE UE may determine the number of retransmissions of the SA or the data according to the finite-length two-dimensional resource sequence in the time-frequency domain or the finite-length one-dimensional resource sequence in the frequency domain or the length of the finite-length one-dimensional resource sequence in the time domain, and the base station does not need to The UE UE that performs the transmission is notified through the displayed field, that is, the base station implicitly notifies the number of retransmissions of the UE UE data to be transmitted.

Of course, the number of retransmissions of the SA or the data may be directly indicated in the scheduling information, for example, the number of retransmissions of the SA or the data is indicated by the displayed field.

It can be seen that a resource configuration method according to an embodiment of the present invention, by making the width of the scheduling allocated occupied frequency band equal to the width of the scheduling allocated occupied frequency band corresponding to other user equipments in the coverage of the base station, and making the width of the data occupied frequency band and The data occupied by other user equipments in the coverage of the base station has the same width of the frequency band. The scheduling information of the base station only needs to indicate the scheduling allocation of the user equipment and the starting position of the frequency band occupied by the data respectively, so that the user equipment can be dispatched explicitly and efficiently. Allocating and data, saving the signaling overhead of the base station; and by transmitting the scheduling assignment or the number of retransmissions of the data by the UE user equipment indicating that the transmission is performed, the user equipment that receives the D2D can be transmitted when receiving the user equipment that performs the transmission. When the transmission block size is different and/or when the transmitting user equipment performs transmission power control, it has considerable reception performance. Referring to FIG. 4, it is a flowchart of still another resource configuration method according to an embodiment of the present invention. The method includes the following steps:

Step S301: The base station indicates, by using a bit field or higher layer signaling of the downlink control information, a scheduling allocation of the user equipment UE and/or a resource allocation manner of the data.

The base station indicates that the resource allocation mode of the UE refers to the resource allocation mode that indicates the current use of the UE. One UE can use different resource allocation modes in a time-sharing manner, that is, in two periods of the SA period or different periods of the SA. The first resource allocation mode and the second resource allocation mode are respectively used, or two time periods of the data period or different periods of the data may respectively use the first resource allocation manner and the second resource allocation manner.

The resource allocation mode may be the frequency domain granularity occupied by the SA and/or the data, and refers to the frequency allocated at one time. The number of RBs occupied by the domain. For example, in the resource pool of the first granular resource allocation mode, the frequency domain resources allocated by the UE when the terminal directly communicates with the terminal are all 4 RBs, and the frequency domain allocated by the UE in the terminal direct connection communication in the resource pool of the second granular resource allocation mode The resources are all 6RB.

The resource allocation method may be SA and/or time domain granularity of data occupation. For example, in the resource pool of the first granular resource allocation mode, the time domain resources allocated by the UE when performing terminal direct communication are all four time units, and in the resource pool of the second granular resource allocation mode, the UE performs terminal direct communication. The time domain resources allocated at the time are all 6 time units (subframes).

The resource allocation mode may also be a two-dimensional resource in the time domain and the frequency domain. For example, in the resource pool of the first granular resource allocation mode, the time domain and the frequency domain resource allocated by the UE when performing UE direct connection communication are both (4RB, 4). In the resource pool of the second granularity resource allocation mode, the time domain and frequency domain resources allocated by the UE when performing UE direct connection communication are both (6 RB, 6 subframes).

As a specific implementation manner, the resource allocation manner may be a resource pattern, and the system presets multiple resource patterns, and the base station and the UE are known. Each resource pattern is a one-dimensional resource sequence in the frequency domain, which may include multiple frequency domain resource units (RBs); or a one-dimensional resource sequence in the time domain, which may include multiple time domain time units; or Each resource pattern is one or more two-dimensional in the time-frequency domain

(Resource Block, RB) or a plurality of frequency domain resource units and time units corresponding to each frequency domain resource unit. Take a two-dimensional resource pattern as an example: a sequence of two-dimensional coordinate pairs, (frequency domain index, time domain index), for example: as shown in Figure 5a, { ( 3,5 ) , (2,7), (1 , 8), (4,9)} is a time-frequency two-dimensional pattern with four video two-dimensional resources (the pattern shown by the slant line in the figure), this pattern can make the UE uniquely find the time-frequency two-dimensional Each resource point (unit) transmits or receives data. Take the one-dimensional time domain resource pattern as an example: a sequence of one-dimensional coordinates, (time domain index), for example: as shown in Figure 5b, { ( 1 ) , (3), (4), (6), (7), (8)} is a one-dimensional time domain pattern with six time-domain resource units (time units) (shown by thick lines in the figure). This pattern allows the UE to uniquely find each time domain. A resource point (unit) sends or receives data. Another notification method may be {(1), (0), (1) (1), (0), (1), (1), (1)} if 1 represents transmission, 0 represents reception, and the UE may be unique. Confirm Your own sending and receiving time unit.

In this embodiment, the base station may be classified according to the frequency domain resource granularity included in the resource pool, and may be classified into a first granular resource pool and a second granular resource pool, or may be classified according to the number of time domain resources included in the resource pool. It can be classified into a first-level resource pool and a second-level resource pool, etc.; it can also be classified according to one-dimensional resources or two-dimensional resources in the time domain, the frequency domain, and the time-frequency domain. The "first" and "second" here only indicate that the size or the number of granularities are different, and there is no limitation on the specific categories.

It should be noted that, since the sending SA and the data do not occur simultaneously in time, the SA and the data may use the same resource allocation manner, or different resource allocation manners may be used.

Step S302, the base station sends first scheduling information to the UE, where the first scheduling information is

And/or the first scheduling information is further used to indicate a time domain and/or a frequency domain resource unit occupied by the data of the UE in a corresponding resource allocation manner.

Specifically, the scheduling information includes start location information, where the start location message is used to indicate the start position of the occupied frequency band of the SA in the corresponding resource allocation mode; the start location message may also be used to indicate that the data is in the corresponding resource allocation mode. The starting position of the occupied frequency band. Since the bandwidth of the SA and the data, that is, the frequency domain resource granularity, has been indicated by the corresponding resource allocation manner, the base station only needs to indicate that the SA or the data respectively occupy the starting position of the frequency band, and the base station can explicitly use the smaller number of bits. Instructing the UE to send scheduling assignments and data saves the signaling overhead of the base station.

Optionally, the embodiment may further include step S303, and step S302 is connected by a broken line in the figure. Step S303: The base station indicates, by using a bit field or a high layer signaling of the downlink control information, a difference in the number of time domain time units of the data of the UE relative to the scheduling.

Since the scheduling allocation and the resource allocation of the data are simultaneously indicated by the base station, and the terminal has multiple possible resource allocation manners, the base station also indicates the time difference of the data allocation with respect to the scheduling, so that the UE can allocate the time unit number according to the scheduling ( Index ) Determine the time unit (number) of the subsequent data, and send the scheduling allocation and data separately using the frequency domain resources indicated by the base station. For example: If the scheduling assignment occurs in the nth time unit and the time domain time unit difference is 4, the data occurs in the (n+4)th time unit. In this embodiment, the base station indicates, by using the bit field or the high layer signaling of the downlink control information, the difference between the data of the UE and the time domain unit allocated by the scheduling, for example, indicating the difference in the number of time units in the time domain by using the indication information.

Optionally, the time domain time unit quantity difference may also be implicitly indicated by a pattern. The pattern is a finite-length two-dimensional resource sequence containing one or more time-frequency domains, or a finite-length one-dimensional resource sequence in the frequency domain/time domain. The base station does not need to notify the UE through the displayed field, and only needs to indicate the applicable The resource pattern, the UE may determine the number of time units of the data according to the length of the two-dimensional resource sequence in the time-frequency domain or the one-dimensional resource sequence in the time domain, that is, the base station implicitly notifies the number of time units of the UE data to be transmitted.

It can be seen that, according to the resource configuration method provided by the embodiment of the present invention, the base station can configure the at least two resource allocation manners, so that the UE can flexibly use different resource allocation manners; from the system perspective, when different resource allocations are corresponding. The domain and the frequency domain resources can be configured to different UEs to allocate resources more flexibly, which saves the signaling overhead of the base station and improves the efficiency of the system.

FIG. 6 is a flowchart of still another resource configuration method according to an embodiment of the present invention. The method includes the following steps:

Step S401: The base station sends configuration information to the user equipment UE, where the configuration information is used to indicate a time-frequency location of at least two resource pools, where at least one first resource pool corresponds to a first resource allocation manner, and at least one second resource pool corresponds to The second resource allocation method.

In this embodiment, resource allocation is performed according to the configuration of the resource pool. First, the base station needs to notify the UE about the configuration information of the resource pool, that is, the time-frequency location of each resource pool. The base station can notify all UEs within the service range of the base station.

The resource pool may be a resource pool of the user direct communication D2D mode 1 or a resource pool of the user direct communication D2D mode 2. Note that the resource pools of mode 1 and mode 2 may be orthogonal (ie, do not overlap) or partially or even all. overlapping.

The resource allocation mode may be the frequency domain granularity of the SA and/or data occupation, and refers to the number of RBs occupied by the frequency domain allocated at one time. For example, in the resource pool of the first granular resource allocation mode, the frequency domain resources allocated by the terminal when performing direct terminal communication are 4 RBs, and the resource pool of the second granular resource allocation mode ends. The allocated frequency domain resources when performing terminal direct connection communication are all 6 RBs.

The resource allocation method may be SA and/or time domain granularity of data occupation. For example, in the resource pool of the first granular resource allocation mode, the time domain resources allocated by the terminal when performing terminal direct connection communication are all four time units (subframes), and the terminal performs terminal direct connection communication in the resource pool of the second granular resource allocation mode. The time domain resources allocated at the time are all 6 time units (subframes).

The resource allocation mode may also be a two-dimensional resource in the time domain and the frequency domain. For example, in the resource pool of the first granular resource allocation mode, the time domain and the frequency domain resource allocated by the terminal when performing terminal direct connection communication are all (4RB, 4). In the resource pool of the second granularity resource allocation mode, the time domain and frequency domain resources allocated by the terminal when performing terminal direct communication are both (6 RB, 6 subframes).

As a specific implementation manner, the resource allocation manner may be a pattern, and the system presets multiple patterns, and the base station and the terminal are known. Each pattern is a one-dimensional resource sequence in the frequency domain, which may include multiple frequency domain resource units (RBs); or a one-dimensional resource sequence in the time domain, which may include multiple time domain time units; or each A pattern is a two-dimensional resource sequence of one or more time-frequency domains, which may include multiple time-domain time units and a frequency domain resource unit (RB) on each time unit as an example: a two-dimensional The sequence of coordinate pairs, (frequency domain index, time domain index), for example: as shown in Figure 5a, { ( 3,5 ), (2,7), (1,8), (4,9)} is a A time-frequency two-dimensional pattern with four video two-dimensional resources (such as the pattern shown by the slanted lines in the figure), this pattern allows the terminal to uniquely find each time-frequency two-dimensional resource point (unit) to transmit or receive data. Take the one-dimensional time domain pattern as an example: a sequence of one-dimensional coordinates, (time domain index), for example: as shown in Figure 5b, { ( 1 ) , (3), (4), (6), ( 7), (8)} is a one-dimensional time domain pattern with six time-domain resource units (time units) (shown by thick lines in the figure), which allows the terminal to uniquely find each resource in the time domain. A point (unit) transmits or receives data. Another notification method can be {(1), (0), (1) (1), (0), (1), (1), (1)} if 1 represents transmission, 0 represents reception, and the terminal can be unique Confirm your own send and receive time units.

In this embodiment, the base station may be classified according to the frequency domain resource granularity included in the resource pool, and may be classified into a first granular resource pool and a second granular resource pool, or may be classified according to the number of time domain resources included in the resource pool. It can be classified into a first-level resource pool and a second-level resource pool, etc.; it can also be classified according to one-dimensional resources or two-dimensional resources in the time domain, the frequency domain, and the time-frequency domain. Here, "first" and "second" only mean that the size or the number of granularities are different, and there is no limitation on the specific classification. Therefore, resource pools of different granularities correspond to a resource allocation manner. Step S402, the base station sends a resource pool indication message to the UE, where the resource pool indication message is used to indicate the at least one first resource pool or at least one that is allocated to the UE to send a scheduling allocation SA and/or data. The second resource pool.

After the base station sends the configuration information of the resource pool to the UE, it also needs to indicate the resource pool allocated to the UE, and allocate resource pools of different granularities according to information such as the SA and data packet size to be sent by the UE, that is, different resource pools are used. The way resources are allocated. It should be noted that, since the sending SA and the data do not occur at the same time, the SA and the data may use the same resource allocation manner, or different resource allocation manners may be used. Specifically, the base station may separately allocate the first granular resource pool and the second granular resource pool to some terminals, and some terminals use the time domain and frequency domain resources of the first granular resource pool for scheduling allocation and data transmission, and other terminals. The time domain and frequency domain resources of the second granular resource pool are used for scheduling allocation and data transmission.

Step S403, the base station sends first scheduling information to the UE, where the first scheduling information is used to indicate time in the at least one first resource pool or at least one second resource pool occupied by the SA of the UE. a domain and/or a frequency domain resource; and/or the first scheduling information is further used to indicate a time domain and/or a time domain in the at least one first resource pool or the at least one second resource pool occupied by data of the UE Frequency domain resources.

Since a granular resource pool includes multiple time domain and/or frequency domain resource units, it can be allocated to multiple UEs that use the same resource allocation mode. Therefore, the base station needs to send scheduling information to the UE, indicating that the SA is occupied. The specific time domain and/or frequency domain resource unit of a resource pool is also used to indicate a specific time domain and/or frequency domain resource unit of a resource pool occupied by data.

Specifically, the scheduling information includes start location information, where the start location message is used to indicate that the SA occupies a starting location of a frequency band in a resource pool of a certain granularity; the start location message may also be used to indicate a certain granularity of data occupation. The starting position of the band in the resource pool. A UE that uses a resource pool of the same granularity transmits the bandwidth of the SA or the data is equal. Therefore, the base station only needs to indicate the starting position of the frequency band in the resource pool of a certain granularity occupied by the SA or the data, and the base station passes fewer bits. The UE can also be explicitly instructed to send scheduling allocations and data, which saves the signaling overhead of the base station.

It can be seen that, according to the resource configuration method provided by the embodiment of the present invention, the base station can configure the D2D communication resource pool that does not overlap at least two times, so that the terminal can flexibly use different resource allocation modes; The time domain and frequency domain resources of the resource pool can be configured to different terminals, allocate resources more flexibly, save signaling overhead of the base station, and improve system efficiency. FIG. 7 is a flowchart of a method for user direct communication according to an embodiment of the present invention, where the method includes the following steps:

Step S501: The first user equipment UE receives a first scheduling message sent by the base station, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate The data of the UE occupies a starting position of the frequency band; wherein, the width of the SA occupied frequency band is equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; The data occupying frequency bands corresponding to other UEs within the coverage of the base station are equal in width.

When the UE performs D2D communication, the working mode of the UE may be configured. For example, the UE may work in mode 1 or mode 2 of the D2D. In this embodiment, the UE receives the configuration of the base station, and operates in the mode 1 of the D2D, that is, the eNB or the relay node schedules the resources used by the UE to transmit the direct communication data and control information, and is applied to the network coverage or part of the network coverage scenario. .

In this embodiment, the base station sets the width of the SA occupied frequency band to be equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; the width of the data occupied frequency band is equal to the width of the data occupied frequency band corresponding to other UEs in the coverage of the base station. In this way, the scheduling information sent by the base station to the UE only needs to indicate the starting position of the frequency band occupied by the SA and the data respectively, and the base station can explicitly instruct the UE to send the scheduling allocation and data by using a small number of bits, thereby saving the base station. Signaling overhead. The scheduling information of the base station may be downlink control information or higher layer signaling. Since the UE transmits the scheduling assignment and the data does not occur simultaneously in time, the frequency bands occupied by the SA and the data respectively may partially or completely overlap. The UE receives the scheduling message.

Step S502, the first UE sends the SA to the second UE at a starting position of the SA occupied frequency band according to the first scheduling information, and to the start position of the frequency band occupied by the data The second UE transmits the data.

According to the starting position, the UE can accurately transmit the S A and the data to the UE receiving the D2D communication on the frequency band occupied by the SA and the data respectively.

It can be seen that, according to an embodiment of the present invention, a user direct communication communication method, by receiving scheduling information sent by a base station, is configured by the base station to set a scheduling allocation allocated frequency band width and a scheduling allocation allocated frequency band corresponding to other user equipments in the coverage of the base station. The widths are equal, and the width of the data occupied frequency band is equal to the width of the data occupied frequency band corresponding to other user equipments in the coverage of the base station, and the scheduling information only needs to indicate the scheduling allocation of the user equipment and the starting position of the data occupying the frequency band respectively. Make the base station clear The user equipment is scheduled to transmit the scheduling allocation and data in an efficient and efficient manner, which saves the signaling overhead of the base station, and the user equipment can accurately transmit the SA and the data according to the frequency band occupied by the SA and the data and the starting position of the respective occupied frequency band. FIG. 8 is a flowchart of another method for direct communication of a user according to an embodiment of the present invention. The method includes the following steps:

Step S601: The first user equipment UE receives a first scheduling message sent by the base station, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate The data of the UE occupies a starting position of the frequency band; wherein, the width of the SA occupied frequency band is equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; The data occupying frequency bands corresponding to other UEs within the coverage of the base station are equal in width.

Step S602, the first UE sends the SA to the second UE at a starting position of the SA occupied frequency band according to the first scheduling information, and to the start position of the frequency band occupied by the data The second UE transmits the data.

Steps S601 and S602 are the same as steps S501 and S502 of the foregoing embodiment, and are not described herein again.

Step S603, the first UE retransmits the SA or data to the second UE according to the number of retransmissions of the SA or data indicated by the first scheduling information, where the number of retransmissions is transmission The number of time resource units occupied by the SA or data.

The step S603 may be that the first UE receives the pattern indication message sent by the base station, where the pattern indication message is used to indicate a pattern used by the first UE to transmit the SA or data, and the pattern includes the The information of the retransmission times of the SA or the data, where the number of retransmissions is the number of time resource units occupied by the SA or the data.

Step S604: The first UE retransmits the S A or data to the second UE according to the information of the number of retransmissions.

In this embodiment, when the number of frequency resources is the same, the size of the transport block (Tranport Block, TB) may be different. If the number of transmissions in the time domain is the same, the receiving UE may receive different sizes of TB data. The receiving performance is different. In addition, when the terminal performs D2D data transmission, if the transmission power is controlled, the transmitting power of the transmitting UE may change with time, which may make it possible to make progress. Even if a UE transmitting a row transmits a transport block of the same length, the reception performance of the UE performing reception is different when receiving the transport block. Therefore, in order to enable the receiving UE to have a different receiving block size when receiving the transmitting block size of the transmitting UE and/or when the transmitting UE performs the transmit power control, the length may be increased and/or the transmitting power may be increased. The number of retransmissions of the smaller transport block adjusts the final code rate. Therefore, the base station determines the number of retransmissions of the data according to the preset parameters. The preset parameter may include: any one or any combination of a signal to noise ratio, a number of bits of the transport block, or a retransmission number mapping table of the data.

The base station may send a pattern indication message to the UE to indicate a pattern used by the UE to transmit the SA or the data, where the pattern includes the information of the retransmission times of the SA or the data, where the number of retransmissions is the number of time resource units occupied by the transmission SA or the data. Specifically, the pattern indication message can be used to indicate the serial number of the pattern. The resource allocation manner indicated by the base station to the UE may be a pattern, which is a finite-length two-dimensional resource sequence including one or more time-frequency domains, and/or a finite-length one-dimensional resource sequence in the frequency domain, and/or time A finite-length one-dimensional resource sequence of a domain, when the base station indicates a pattern used by the UE, the UE is based on a finite-length two-dimensional resource sequence in a time-frequency domain or a finite-length one-dimensional resource sequence or a finite-length time domain in a frequency domain. The length of the one-dimensional resource sequence can determine the number of retransmissions of the SA or the data. The base station does not need to notify the UE through the displayed field, that is, the base station implicitly notifies the number of retransmissions of the UE data.

The transmitting UE retransmits the SA or data to the receiving UE according to the information of the number of retransmissions. It can be seen that, according to an embodiment of the present invention, a user direct communication method is configured to receive scheduling information of a base station, and the base station sets the width of the scheduling allocated occupied frequency band to be equal to the width of the scheduling allocated occupied frequency band corresponding to other user equipments in the coverage of the base station. And the width of the data occupied frequency band is equal to the width of the data occupied frequency band corresponding to other user equipments in the coverage of the base station, so that the scheduling information of the base station only needs to indicate the scheduling allocation of the user equipment and the starting position of the data occupied frequency band respectively, that is, The base station can be configured to explicitly and efficiently schedule the user equipment to send scheduling allocations and data, which saves the signaling overhead of the base station, and the user equipment can accurately transmit the SA according to the frequency band occupied by the SA and the data respectively and the starting position of the occupied frequency band. And the data; and by instructing the user equipment to send the scheduling assignment or the number of retransmissions of the data, the user equipment that can be received by the D2D can be different when the transmission block size transmitted by the user equipment that receives the transmission is different and/or when the transmission is performed. When the device performs transmission power control, it has phase Reception. FIG. 9 is a flowchart of still another method for user direct communication according to an embodiment of the present invention. The method includes the following steps:

Step S701: The first user equipment UE receives a scheduling allocation of the user equipment UE indicated by the bit field or the high layer signaling of the downlink control information, and/or a resource allocation manner of the data.

The resource allocation mode may be the frequency domain granularity of the SA and/or data occupation, and refers to the number of RBs occupied by the frequency domain allocated at one time. For example, in the resource pool of the first granular resource allocation mode, the frequency domain resources allocated by the UE when performing UE direct connection communication are all 4 RBs, and the frequency domain allocated by the UE when performing UE direct connection communication in the resource pool of the second granular resource allocation mode The resources are all 6RB.

The resource allocation method may be SA and/or time domain granularity of data occupation. For example, in the resource pool of the first granular resource allocation mode, the time domain resources allocated by the UE when performing UE direct connection communication are all four time units (subframes), and in the resource pool of the second granular resource allocation mode, the UE performs UE direct connection communication. The time domain resources allocated at the time are all six time units (subframes).

(Resource Block, RB) or a plurality of frequency domain resource units and time units corresponding to each frequency domain resource unit. Take a two-dimensional resource pattern as an example: a sequence of two-dimensional coordinate pairs, (frequency domain index, time domain index), for example: as shown in Figure 5a, { ( 3,5 ) , (2,7), (1 , 8), (4,9)} is a time-frequency two-dimensional pattern with four video two-dimensional resources (the pattern shown by the slant line in the figure), this pattern can make the UE only look for Each resource point (unit) of the time-frequency two-dimensional transmission or reception of data. Take the one-dimensional time domain resource pattern as an example: a sequence of one-dimensional coordinates, (time domain index), for example: as shown in Figure 5b, { ( 1 ) , (3), (4), (6), (7), (8)} is a one-dimensional time domain pattern with six time-domain resource units (time units) (shown by thick lines in the figure). This pattern allows the UE to uniquely find each time domain. A resource point (unit) sends or receives data. Another notification method may be {(1), (0), (1) (1), (0), (1), (1), (1)} if 1 represents transmission, 0 represents reception, and the UE may be unique. Confirm your own send and receive time units.

It should be noted that, since the sending SA and the data do not occur simultaneously in time, the SA and the data may use the same resource allocation manner or different resource allocation manners.

The UE receives the resource allocation manner indicated by the base station.

Step S702: The first UE receives the first scheduling information sent by the base station, the first resource adjustment unit, and/or the first scheduling information is further used to indicate that the data of the UE is in a corresponding resource allocation. The time domain and/or frequency domain resource unit occupied by the mode. Or sending the SA to the second UE on the frequency domain resource; and/or the corresponding information of the first UE in the data, where the scheduling information includes start location information, where the start location message is used to indicate that the SA is The starting position of the occupied frequency band in the corresponding resource allocation mode; the start location message may also be used to indicate the starting position of the frequency band occupied by the data in the corresponding resource allocation mode. Since the bandwidth of the SA and the data, that is, the frequency domain resource granularity, has been indicated by the corresponding resource allocation manner, the base station only needs to indicate that the SA or the data respectively occupy the starting position of the frequency band, and the base station can explicitly use the smaller number of bits. Instructing the UE to send scheduling assignments and data saves the signaling overhead of the base station. The UE may accurately transmit the SA or data to another UE at the start position of the frequency band occupied by the SA or the resource allocation mode corresponding to the data.

As a further refinement, the UE may further receive a ratio of the downlink control information by the base station. The domain or higher layer signaling indicates a difference in the number of time domain time units allocated by the UE data with respect to the scheduling, and then sequentially sends the scheduling allocation and data to the second UE of the UE according to the difference in the number of time domain time units.

Since the scheduling allocation and the resource allocation of the data are simultaneously indicated by the base station, and the terminal has multiple possible resource allocation manners, the base station also indicates the time difference of the data allocation with respect to the scheduling, so that the UE can allocate the time unit number according to the scheduling ( Index ) Determine the time unit (number) of the subsequent data, and send the scheduling allocation and data separately using the frequency domain resources indicated by the base station. For example: If the scheduling assignment occurs in the nth time unit and the time domain time unit difference is 4, the data occurs in the (n+4)th time unit.

In this embodiment, the UE receives the difference between the data of the UE indicated by the bit field or the high layer signaling of the downlink control information and the time domain time unit allocated by the scheduling, for example, indicating the time domain time unit difference by the indication information.

Optionally, the time domain time unit quantity difference may also be implicitly indicated by a pattern. The pattern is a finite-length two-dimensional resource sequence containing one or more time-frequency domains, or a finite-length one-dimensional resource sequence in the frequency domain/time domain, and the base station does not need to notify the transmitting UE through the displayed field, and only needs to indicate Using the resource pattern, the transmitting UE may determine the number of time units of the data according to the length of the two-dimensional resource sequence in the time-frequency domain or the one-dimensional resource sequence in the time domain, that is, the time when the base station implicitly notifies the UE data to be transmitted. The number of units.

It can be seen that, according to the method of the user direct communication, the base station configures at least two resource allocation manners, so that the UE can flexibly use different resource allocation modes; from a system perspective, different resource allocations are corresponding. The time domain and frequency domain resources can be configured to different UEs to allocate resources more flexibly, which saves the signaling overhead of the base station and improves the efficiency of the system. FIG. 10 is a flowchart of still another method for user direct communication according to an embodiment of the present invention. The method includes the following steps:

Step S801: The first user equipment UE receives the configuration information sent by the base station, where the configuration information is used to indicate the time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation manner, and the at least one second The resource pool corresponds to the second resource allocation mode UE.

In this embodiment, resource allocation is performed according to the configuration of the resource pool. First, the base station needs to notify the UE about the configuration information of the resource pool, that is, the time-frequency location of each resource pool. Wherein, the base station can notify UEs within the range of all base station services. The UE receives the configuration information sent by the base station.

The resource allocation mode may be the frequency domain granularity of the SA and/or data occupation, and refers to the number of RBs occupied by the frequency domain allocated at one time. For example, in the resource pool of the first granular resource allocation mode, the frequency domain resources allocated by the UE when performing terminal direct connection communication are all 4 RBs, and the frequency domain allocated by the UE when performing terminal direct connection communication in the resource pool of the second granular resource allocation mode The resources are all 6RB.

The resource allocation mode may also be a two-dimensional resource in the time domain and the frequency domain. For example, in the resource pool of the first granular resource allocation mode, the time domain and the frequency domain resource allocated by the UE when performing terminal direct communication are both (4RB, 4). In the resource pool of the second granularity resource allocation mode, the allocated time domain and frequency domain resources of the UE when performing terminal direct connection communication are (6 RB, 6 subframes).

As a specific implementation manner, the resource allocation manner may be a pattern, and the system presets multiple patterns, and the base station and the UE are known. Each pattern is a one-dimensional resource sequence in the frequency domain, which may include multiple frequency domain resource units (RBs); or a one-dimensional resource sequence in the time domain, which may include multiple time domain time units; or each A pattern is a two-dimensional resource sequence of one or more time-frequency domains, which may include multiple time-domain time units and a frequency domain resource unit (RB) on each time unit as an example: a two-dimensional The sequence of coordinate pairs, (frequency domain index, time domain index), for example: as shown in Figure 5a, { ( 3,5 ), (2,7), (1,8), (4,9)} is a A time-frequency two-dimensional pattern with four video two-dimensional resources (such as the pattern shown by the slanted lines in the figure), this pattern enables the UE to uniquely find each time-frequency two-dimensional resource point (unit) to transmit or receive data. Take the one-dimensional time domain pattern as an example: a sequence of one-dimensional coordinates, (time domain index), for example: as shown in Figure 5b, { ( 1 ) , (3), (4), (6), ( 7), (8)} is a one-dimensional time domain pattern with six time-domain resource units (time units) (shown by thick lines in the figure), this pattern allows the UE to uniquely find each resource in the time domain. A point (unit) transmits or receives data. Another notification method can be {(1), (0), (1) (1), (0), (1), (1), (1)} if 1 represents transmission, 0 generation For table reception, the UE can uniquely confirm its own transmission and reception time unit.

In this embodiment, the base station may be classified according to the frequency domain resource granularity included in the resource pool, and may be classified into a first granular resource pool and a second granular resource pool, or may be classified according to the number of time domain resources included in the resource pool. It can be classified into a first-level resource pool and a second-level resource pool, etc.; it can also be classified according to one-dimensional resources or two-dimensional resources in the time domain, the frequency domain, and the time-frequency domain. The "first" and "second" here only indicate that the size or the number of granularities are different, and there is no limitation on the specific categories. Therefore, resource pools with different granularities correspond to a resource allocation method.

Step S802, the first UE receives a resource pool indication message sent by the base station, where the resource pool indication message is used to indicate the at least one first that is allocated to the first UE to send a scheduling allocation SA and/or data. A resource pool or at least one second resource pool.

After the base station sends the configuration information of the resource pool to the UE, it also needs to indicate the resource pool allocated to the UE, and allocate resource pools of different granularities according to information such as the SA and data packet size to be sent by the UE, that is, different resource pools are used. The way resources are allocated. It should be noted that, since the sending SA and the data do not occur at the same time, the SA and the data may use the same resource allocation manner, or different resource allocation manners may be used. Specifically, the base station may separately allocate the first granular resource pool and the second granular resource pool to some UEs, and some UEs use the time domain and frequency domain resources of the first granular resource pool for scheduling allocation and data transmission, and other UEs. The time domain and frequency domain resources of the second granular resource pool are used for scheduling allocation and data transmission.

Step S803, the first UE receives the first scheduling information sent by the base station, where the first scheduling information is used to indicate the at least one first resource pool or at least one second occupied by the SA of the first UE. a time domain and/or a frequency domain resource in the resource pool; and/or the first scheduling information is further used to indicate the at least one first resource pool or the at least one second resource pool occupied by data of the first UE Time domain and / or frequency domain resources.

Specifically, the scheduling information includes start location information, where the start location message is used to indicate that the SA occupies a starting location of a frequency band in a resource pool of a certain granularity; the start location message may also be used to indicate a certain granularity of data occupation. The starting position of the band in the resource pool. Sending by UE using the same granularity of resource pool The frequency bandwidth of the SA or the data is equal. Therefore, the base station only needs to indicate the starting position of the frequency band in the resource pool of a certain granularity occupied by the SA or the data, and the base station can explicitly indicate the UE to send the scheduling allocation by using a small number of bits. And data, saving the signaling overhead of the base station.

Step S804, the first UE sends the SA to the second UE on the time domain and/or the frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the SA; and And/or the first UE sends the data to the second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the data.

The UE sends the SA or data to the receiving UE on the time-frequency domain resource of a certain resource pool occupied by the SA or the data. Specifically, since the bandwidths of the UEs in the same resource pool are equal, the UE only needs to accurately transmit the S A or the data according to the starting position of the frequency domain resources of the resource pool occupied by the indicated SA or data.

It can be seen that, according to the method of the user direct communication, the base station configures at least two D2D communication resource pools that do not overlap in time, so that the UE can flexibly use different resource allocation modes; The time domain and frequency domain resources of different resource pools can be configured to different UEs to allocate resources more flexibly, which saves the signaling overhead of the base station and improves the efficiency of the system. FIG. 11 is a schematic structural diagram of a base station according to an embodiment of the present invention. The base station 1000 includes:

The sending unit 11 is configured to send the first scheduling information to the user equipment UE, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate the location The data of the UE occupies the starting position of the frequency band;

The width of the SA occupied frequency band is equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; the width of the data occupied frequency band and the data occupied frequency band corresponding to other UEs in the coverage of the base station. The width is equal.

When the UE performs D2D communication, the working mode of the UE may be configured. For example, the UE may work in mode 1 or mode 2 of the D2D. In this embodiment, the base station configures the mode in which the UE works in the D2D mode, that is, the eNB or the relay node schedules the resources used by the UE to transmit the data and control information of the direct communication, and is applied to the scenario of network coverage or partial network coverage.

In this embodiment, the width of the SA occupied frequency band is equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; the width of the data occupied frequency band is matched with other UEs in the coverage of the base station. The width of the occupied data band is equal. Therefore, the scheduling information sent by the base station to the UE only needs to indicate the starting position of the frequency band occupied by the SA and the data respectively, and the base station can explicitly indicate the UE to send the scheduling by using fewer bits. The allocation and data save the signaling overhead of the base station. The scheduling information of the base station may be downlink control information or higher layer signaling. Since the UE transmits the scheduling assignment and the data does not occur simultaneously in time, the frequency bands occupied by the SA and the data respectively may partially or completely overlap.

It can be seen that, according to an embodiment of the present invention, a base station is configured to make a width of a scheduling allocated occupied frequency band equal to a width of a scheduling allocated occupied frequency band corresponding to other user equipments in a coverage area of the base station, and a width of the data occupied frequency band and a base station coverage. The data occupying the bandwidth of the other user equipments in the range is equal. The scheduling information of the base station only needs to indicate the scheduling allocation of the user equipment and the starting position of the frequency band occupied by the data respectively, so that the user equipment can be scheduled to be dispatched explicitly and efficiently. The data saves the signaling overhead of the base station. Still referring to FIG. 11, a further refinement embodiment of a base station according to an embodiment of the present invention is provided. The base station includes:

The function of the transmitting unit 11 is the same as that of the transmitting unit 11 of the foregoing embodiment, and details are not described herein again. The sending unit 11 is further configured to send, to the UE, a pattern indication message, where the pattern indication message is used to indicate a pattern used by the UE to transmit the SA or data, where the pattern includes retransmission times of the SA or data. Information;

The number of retransmissions is the number of time resource units occupied by the SA or data. In this embodiment, when the number of frequency resources is the same, the size of the transport block (Tranport Block, TB) may be different. If the number of transmissions in the time domain is the same, the receiving UE may receive different sizes of TB data. The receiving performance is different. In addition, when the terminal performs D2D data transmission, if the transmission power is controlled, the transmitting power of the transmitting UE may change with time, which may cause the transmitting UE to receive even if it transmits the same long transmission block. When the UE receives the transport block The receiving performance is also different. Therefore, in order to enable the receiving UE to have a different receiving block size when receiving the transmitting block size of the transmitting UE and/or when the transmitting UE performs the transmit power control, the length may be increased and/or the transmitting power may be increased. The number of retransmissions of the smaller transport block adjusts the final code rate. Therefore, the base station determines the number of retransmissions of the data according to the preset parameters.

The base station may send a pattern indication message to the UE to indicate a pattern used by the UE to transmit the SA or the data, where the pattern includes the information of the retransmission times of the SA or the data, where the number of retransmissions is the number of time resource units occupied by the transmission SA or the data. Specifically, the pattern indication message can be used to indicate the serial number of the pattern. The resource allocation manner indicated by the base station to the UE may be a pattern, which is a finite-length two-dimensional resource sequence including one or more time-frequency domains, and/or a finite-length one-dimensional resource sequence in the frequency domain, and/or time A finite-length one-dimensional resource sequence of a domain, when the base station indicates a pattern used by the UE, the UE UE transmitting the finite-length two-dimensional resource sequence in the time-frequency domain or the finite-length one-dimensional resource sequence or time domain in the frequency domain The length of the one-dimensional resource sequence of the finite length can determine the number of retransmissions of the SA or the data. The base station does not need to notify the UE UE that transmits the field through the displayed field, that is, the base station implicitly notifies the number of retransmissions of the UE UE data to be transmitted.

It can be seen that, according to an embodiment of the present invention, a base station is configured to make a width of a scheduling allocated occupied frequency band equal to a width of a scheduling allocated occupied frequency band corresponding to other user equipments in a coverage area of the base station, and a width of the data occupied frequency band and a base station coverage. The data occupying the bandwidth of the other user equipments in the range is equal. The scheduling information of the base station only needs to indicate the scheduling allocation of the user equipment and the starting position of the frequency band occupied by the data respectively, so that the user equipment can be scheduled to be dispatched explicitly and efficiently. Data, which saves the signaling overhead of the base station; and by transmitting the scheduling assignment or the number of retransmissions of the data by the UE user equipment indicating that the transmission is performed, the user equipment that receives the D2D reception may receive the transmission block transmitted by the user equipment that performs the transmission. When the sizes are different and/or when the transmitting user equipment performs transmission power control, it has considerable receiving performance. Still referring to FIG. 11, another embodiment of a base station according to an embodiment of the present invention is provided. The base station 1000 includes: The sending unit 11 is configured to indicate, by using a bit field or higher layer signaling of the downlink control information, a scheduling allocation of the user equipment UE and/or a resource allocation manner of the data.

The resource allocation method may be SA and/or time domain granularity of data occupation. For example, in the resource pool of the first granular resource allocation mode, the time domain resources allocated by the UE when performing terminal direct communication are all four time units, and in the resource pool of the second granular resource allocation mode, the UE performs terminal direct communication. The time domain resources allocated at the time are all six time units (subframes).

(Resource Block, RB) or a plurality of frequency domain resource units and time units corresponding to each frequency domain resource unit. Take a two-dimensional resource pattern as an example: a sequence of two-dimensional coordinate pairs, (frequency domain index, time domain index), for example: as shown in Figure 5a, { ( 3,5 ) , (2,7), (1 , 8), (4,9)} is a time-frequency two-dimensional pattern with four video two-dimensional resources (the pattern shown by the diagonal line in the figure), this pattern can make the UE uniquely find the time-frequency two-dimensional Each resource point (unit) transmits or receives data. Take the one-dimensional time domain resource pattern as an example: a sequence of one-dimensional coordinates, (time domain index), for example: as shown in Figure 5b, { ( 1 ) (3), (4), (6), (7), (8)} is a one-dimensional time domain pattern with six time-domain resource units (time units) (shown by thick lines in the figure) This pattern allows the UE to uniquely find individual resource points (units) in the time domain to transmit or receive data. Another notification method may be {(1), (0), (1) (1), (0), (1), (1), (1)} if 1 represents transmission, 0 represents reception, and the UE may be unique. Confirm your own send and receive time units.

The sending unit 11 is further configured to send, to the UE, first scheduling information, where the first scheduling information is used.

The first scheduling information is further used to indicate a time domain and/or a frequency domain resource unit occupied by the data of the UE in a corresponding resource allocation manner.

Optionally, the embodiment may further include step S303, and step S302 is connected by a broken line in the figure. The sending unit 11 is further configured to indicate, by using a bit field or a high layer signaling of the downlink control information, a difference in the number of time domain time units of the data of the UE with respect to scheduling.

Since the scheduling allocation and the resource allocation of the data are simultaneously indicated by the base station, and the terminal has multiple possible resource allocation manners, the base station also indicates the time difference of the data allocation with respect to the scheduling, so that the UE can allocate the time unit number according to the scheduling ( Index ) Determine the time unit (number) of the subsequent data, and send the scheduling allocation and data separately using the frequency domain resources indicated by the base station. For example: If the scheduling assignment occurs in the nth time unit and the time domain time unit difference is 4, the data occurs at the (n+4)th time. Unit.

In this embodiment, the base station indicates, by using the bit field or the high layer signaling of the downlink control information, the difference between the data of the UE and the time domain time unit allocated by the scheduling, for example, indicating the difference in the number of time domain units by the indication information.

Optionally, the time domain time unit quantity difference may also be implicitly indicated by a pattern. The pattern is a finite-length two-dimensional resource sequence containing one or more time-frequency domains, or a finite-length one-dimensional resource sequence in the frequency domain/time domain, and the base station does not need to notify the UE through the displayed field, and only needs to indicate the applicable The resource pattern, the UE may determine the number of time units of the data according to the length of the two-dimensional resource sequence in the time-frequency domain or the one-dimensional resource sequence in the time domain, that is, the base station implicitly notifies the number of time units of the UE data to be transmitted.

It can be seen that, according to the embodiment of the present invention, the base station can allocate the time domain and the frequency domain resource corresponding to the resource allocation of the at least two resources to the different UEs, and allocate resources more flexibly, thereby saving the base station. Signaling overhead increases the efficiency of the system. Still referring to FIG. 11, another embodiment of a base station according to an embodiment of the present invention is provided. The base station 1000 includes:

The sending unit 11 is configured to send configuration information to the user equipment UE, where the configuration information is used to indicate a time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation manner, and the at least one second resource The pool corresponds to the second resource allocation mode. In this embodiment, resource allocation is performed according to the configuration of the resource pool. First, the base station needs to notify the UE about the configuration information of the resource pool, that is, the time-frequency location of each resource pool. The base station can notify all UEs within the service range of the base station.

The resource allocation mode may be the frequency domain granularity of the SA and/or data occupation, and refers to the number of RBs occupied by the frequency domain allocated at one time. For example, in the resource pool of the first granular resource allocation mode, the frequency domain resources allocated by the terminal when performing terminal direct connection communication are 4 RBs, and the frequency domain allocated by the terminal in terminal direct connection communication in the resource pool of the second granular resource allocation mode The resources are all 6RB.

The resource allocation manner may be the time domain granularity of the SA and/or data occupation. For example, in the resource pool of the first granular resource allocation mode, when the terminal performs terminal direct connection communication, the time domain resources allocated are four. In the resource pool of the second granularity resource allocation mode, the time domain resources allocated by the terminal when performing terminal direct connection communication are all six time units (subframes).

The sending unit 11 is further configured to send a resource pool indication message to the UE, where the resource pool indication message is used to indicate the at least one first resource pool or at least one allocated to the UE to send a scheduling allocation SA and/or data. The second resource pool. After the base station sends the configuration information of the resource pool to the UE, it also needs to indicate the resource pool allocated to the UE, and allocate resource pools of different granularities according to information such as the SA and data packet size to be sent by the UE, that is, different resource pools are used. The way resources are allocated. It should be noted that, since the sending SA and the data do not occur simultaneously in time, the SA and the data may use the same resource allocation manner, or may use different resource allocation manners. Specifically, the base station may separately allocate the first granular resource pool and the second granular resource pool to some terminals, and some terminals use the time domain and frequency domain resources of the first granular resource pool for scheduling allocation and data transmission, and other terminals. The time domain and frequency domain resources of the second granular resource pool are used for scheduling allocation and data transmission.

The sending unit 11 is further configured to send the first scheduling information to the UE, where the first scheduling information is used to indicate time in the at least one first resource pool or the at least one second resource pool occupied by the SA of the UE. a domain and/or a frequency domain resource; and/or the first scheduling information is further used to indicate a time domain and/or a time domain in the at least one first resource pool or the at least one second resource pool occupied by data of the UE Frequency domain resources.

It can be seen that, according to an embodiment of the present invention, a base station configures at least two D2D communication resource pools that do not overlap in time, so that the terminal can flexibly use different resource allocation modes; from a system perspective, different resources are obtained. The time domain and frequency domain resources of the pool can be configured to different terminals, allocate resources more flexibly, save signaling overhead of the base station, and improve system efficiency. Referring to FIG. 12, it is a schematic structural diagram of a user equipment according to an embodiment of the present invention. The user equipment 2000 includes:

The receiving unit 21 is configured to receive a first scheduling message sent by the base station, where the first scheduling information is used by Instructing the scheduling of the UE to allocate a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate a starting position of a data occupied frequency band of the UE; wherein, the width of the SA occupied frequency band and the base station The widths of the SA occupied frequency bands corresponding to other UEs in the coverage area are equal; the width of the data occupied frequency band is equal to the width of the data occupied frequency band corresponding to other UEs in the coverage of the base station.

The sending unit 22 is configured to send, according to the first scheduling information, the SA to the second UE at a starting position of the SA occupied frequency band, and to the second location at a starting position of the frequency band occupied by the data The UE transmits the data.

It can be seen that, according to the user equipment provided by the embodiment of the present invention, by receiving the scheduling information sent by the base station, the width of the occupied frequency band of the scheduling allocation allocated by the base station is equal to the width of the scheduling allocated occupied frequency band corresponding to other user equipments in the coverage of the base station, And the width of the data occupied frequency band is equal to the width of the data occupied frequency band corresponding to other user equipments in the coverage of the base station, and the scheduling signal only needs to indicate the scheduling allocation of the user equipment and the starting position of the data occupying the frequency band respectively, so that the base station can be The user equipment is dispatched explicitly and efficiently to send scheduling assignments and data, which saves the signaling overhead of the base station, and the user equipment can accurately transmit the SA and the data according to the frequency bands occupied by the SA and the data and the starting positions of the respective occupied frequency bands. Referring to FIG. 13 , which is a schematic structural diagram of a user equipment that is further refined in the embodiment shown in FIG. 12 , the user equipment 3000 includes:

The receiving unit 31 is configured to receive a first scheduling message that is sent by the base station, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band, and the first scheduling information is further used to indicate the The data occupying the start position of the frequency band of the UE; wherein, the width of the SA occupied frequency band is equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; the width of the data occupied frequency band and the coverage of the base station The data occupied by other UEs in the range occupy the same width of the frequency band.

The sending unit 32 is configured to send, according to the first scheduling information, the SA to the second UE at a starting position of the SA occupied frequency band, and to the second location at a starting position of the frequency band occupied by the data The UE transmits the data.

The functions of the receiving unit 31 and the transmitting unit 32 are the same as those of the receiving unit 21 and the transmitting unit 22 of the foregoing embodiment, and are not described herein again.

As an implementation manner, the user equipment 3000 further includes:

a first retransmission unit 33, configured to retransmit the SA or data to the second UE according to the number of retransmissions of the SA or data indicated by the first scheduling information, where the number of retransmissions is The number of time resource units occupied by the SA or data transmission.

As another implementation:

The receiving unit is further configured to receive a pattern indication message sent by the base station, where the pattern indication message is used to indicate a pattern used by the first UE to transmit the SA or data, where the pattern includes the weight of the SA or the data. The number of times of transmission, where the number of retransmissions is the number of time resource units occupied by the SA or data.

a second retransmission unit, configured to retransmit the SA or data to the second UE according to the information about the number of retransmissions.

In this embodiment, when the number of frequency resources is the same, the size of the transport block (Tranport Block, TB) may be different. If the number of transmissions in the time domain is the same, the receiving UE may receive different sizes of TB data. The receiving performance is different. In addition, when the terminal performs D2D data transmission, if the transmission power is controlled, the transmitting power of the transmitting UE may change with time, which may cause the transmitting UE to receive even if it transmits the same long transmission block. The receiving performance of the UE when receiving a transport block is also different. Therefore, in order for the receiving UE to have a different transmission block size when receiving the transmitting UE and/or when the transmitting UE performs the transmission power control, it has considerable reception. The number of retransmissions of the transport block with a longer length and/or a smaller transmit power can be increased, and the final code rate can be adjusted. Therefore, the base station determines the number of retransmissions of the data according to the preset parameters. The preset parameter may include: any one or any combination of a signal to noise ratio, a number of bits of the transport block, or a retransmission number mapping table of the data.

The transmitting UE retransmits the SA or data to the receiving UE according to the information of the number of retransmissions. It can be seen that, according to an embodiment of the present invention, the user equipment receives the scheduling information of the base station, and the base station sets the width of the scheduling allocated occupied frequency band to be equal to the width of the scheduling allocated occupied frequency band corresponding to other user equipments in the coverage of the base station, and makes the data The width of the occupied frequency band is equal to the width of the data occupied frequency band corresponding to other user equipments in the coverage of the base station, so that the scheduling information of the base station only needs to indicate the scheduling allocation of the user equipment and the starting position of the data occupying the frequency band respectively, so that the base station can be made. Clearly and efficiently scheduling user equipment to send scheduling allocations and data, saving signaling overhead of the base station, and the user equipment can accurately transmit SA and data according to the frequency bands occupied by the SA and the data and the starting positions of the respective occupied frequency bands; And by instructing the user equipment to send the scheduling assignment or the number of retransmissions of the data, the user equipment that can be received by the D2D can transmit when the transmission block size of the user equipment that receives the transmission is different and/or when the user equipment that performs the transmission transmits When power control, there is considerable connection Performance. Still referring to FIG. 12, it is still another embodiment of a user equipment according to an embodiment of the present invention. The user equipment 2000 includes: The receiving unit 21 is configured to receive, by the base station, a scheduling allocation of the user equipment UE indicated by the bit field or the high layer signaling of the downlink control information, and/or a resource allocation manner of the data.

The UE receives the resource allocation manner indicated by the base station.

The receiving unit 21 is further configured to receive the first scheduling information sent by the base station, the first scheduling information element; and/or the first scheduling information is further used to indicate that the data of the UE is in a corresponding resource allocation mode. Occupied time domain and / or frequency domain resource unit. Transmitting the SA to the second UE on the resource; and/or sending, by the first UE, the data to the second UE on a time domain and/or a frequency domain resource occupied by the resource allocation mode corresponding to the data .

Specifically, the scheduling information includes start location information, where the start location message is used to indicate the start position of the occupied frequency band of the SA in the corresponding resource allocation mode; the start location message may also be used to indicate that the data is in the corresponding resource allocation mode. The starting position of the occupied frequency band. Since the bandwidth of the SA and the data, that is, the frequency domain resource granularity, has been indicated by the corresponding resource allocation manner, the base station only needs to indicate that the SA or the data respectively occupy the starting position of the frequency band, and the base station can explicitly use the smaller number of bits. Instructing the UE to send scheduling assignments and data saves the signaling overhead of the base station. The UE may accurately transmit the SA or data to another UE at the start position of the frequency band occupied by the SA or the resource allocation mode corresponding to the data.

As a further refinement, the UE may further receive, by using the bit field or the high layer signaling of the downlink control information, the base station to indicate a difference in the number of time domain time units allocated by the UE data with respect to the scheduling, and then according to the time domain time. The number of units is poor, and the scheduling allocation and data are sequentially sent to the UE. Two UEs.

It can be seen that, according to a user equipment provided by the embodiment of the present invention, the base station can configure the at least two resource allocation manners, so that the UE can flexibly use different resource allocation manners; from the system perspective, the different resources are allocated corresponding time domains. The frequency domain resources can be configured to different UEs to allocate resources more flexibly, which saves the signaling overhead of the base station and improves the efficiency of the system. Still referring to FIG. 12, it is still another embodiment of a user equipment according to an embodiment of the present invention. The user equipment 2000 includes:

The receiving unit 21 is configured to receive configuration information sent by the base station, where the configuration information is used to indicate a time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation mode, and the at least one second resource pool Corresponding to the second resource allocation mode UE.

In this embodiment, resource allocation is performed according to the configuration of the resource pool. First, the base station needs to notify the UE about the configuration information of the resource pool, that is, the time-frequency location of each resource pool. The base station can notify all UEs within the service range of the base station. The UE receives the configuration information sent by the base station.

The resource pool may be a resource pool of the user direct communication D2D mode one, or a user direct communication The resource pool of D2D mode 2, note that the resource pools of mode one and mode two may be orthogonal (ie, do not overlap) or partially or even completely overlap.

As a specific implementation manner, the resource allocation manner may be a pattern, and the system presets multiple patterns, and the base station and the UE are known. Each pattern is a one-dimensional resource sequence in the frequency domain, which may include multiple frequency domain resource units (RBs); or a one-dimensional resource sequence in the time domain, which may include multiple time domain time units; or each A pattern is a two-dimensional resource sequence of one or more time-frequency domains, which may include multiple time-domain time units and a frequency domain resource unit (RB) on each time unit as an example: a two-dimensional The sequence of coordinate pairs, (frequency domain index, time domain index), for example: as shown in Figure 5a, { ( 3,5 ), (2,7), (1,8), (4,9)} is a A time-frequency two-dimensional pattern with four video two-dimensional resources (such as the pattern shown by the slanted lines in the figure), this pattern enables the UE to uniquely find each time-frequency two-dimensional resource point (unit) to transmit or receive data. Take the one-dimensional time domain pattern as an example: a sequence of one-dimensional coordinates, (time domain index), for example: as shown in Figure 5b, { ( 1 ) , (3), (4), (6), ( 7), (8)} is a one-dimensional time domain pattern with six time-domain resource units (time units) (shown by thick lines in the figure), this pattern allows the UE to uniquely find each resource in the time domain. A point (unit) transmits or receives data. Another notification method may be {(1), (0), (1) (1), (0), (1), (1), (1)} if 1 represents transmission, 0 represents reception, and the UE may be unique. Confirm your own send and receive time units.

In this embodiment, the base station may classify according to the frequency domain resource granularity included in the resource pool, and may divide The class is the first granular resource pool and the second granular resource pool, and may be classified according to the number of the time domain resources included in the resource pool, and may be classified into the first granular resource pool and the second granular resource pool, etc. Domain, frequency domain, time-frequency domain one-dimensional resources or two-dimensional resources are classified. Here, "first" and "second" only mean that the size or the number of granularities are different, and there is no limitation on the specific classification. Therefore, resource pools of different granularities correspond to a resource allocation manner.

The receiving unit 21 is further configured to receive a resource pool indication message sent by the base station, where the resource pool indication message is used to indicate the at least one first resource pool that is allocated to the first UE to send a scheduling allocation SA and/or data. Or at least one second resource pool.

The receiving unit 21 is further configured to receive the first scheduling information that is sent by the base station, where the first scheduling information is used to indicate the at least one first resource pool or the at least one second resource pool that is occupied by the SA of the first UE. The time domain and/or the frequency domain resource; and/or the first scheduling information is further used to indicate that the data of the first UE is occupied by the at least one first resource pool or the at least one second resource pool Time domain and / or frequency domain resources.

Specifically, the scheduling information includes start location information, where the start location message is used to indicate that the SA occupies a starting location of a frequency band in a resource pool of a certain granularity; the start location message may also be used to indicate a certain granularity of data occupation. The starting position of the band in the resource pool. A UE that uses a resource pool of the same granularity transmits the bandwidth of the SA or the data is equal. Therefore, the base station only needs to indicate the starting position of the frequency band in the resource pool of a certain granularity occupied by the SA or the data, and the base station passes fewer bits. Can also explicitly indicate the UE Sending scheduling assignments and data saves the signaling overhead of the base station.

The sending unit 22 is configured to send the SA to the second UE on the time domain and/or the frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the SA; and/or The first UE sends the data to the second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the data.

It can be seen that, according to a user equipment provided by the embodiment of the present invention, the base station configures at least two D2D communication resource pools that do not overlap in time, so that the UE can flexibly use different resource allocation manners; The time domain and frequency domain resources of the resource pool can be configured to different UEs to allocate resources more flexibly, which saves the signaling overhead of the base station and improves the efficiency of the system. FIG. 14 is a schematic structural diagram of still another base station according to an embodiment of the present invention. The base station 4000 includes: a transmitter 41.

The transmitter 41 is configured to send the first scheduling information to the user equipment UE, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate the location The data of the UE occupies the starting position of the frequency band;

As an implementation manner, the first scheduling information is downlink control information or high layer signaling.

In another implementation manner, the first scheduling information is further used to indicate the number of retransmissions of the SA or data; or

The transmitter 41 is further configured to send, to the UE, a pattern indication message, where the pattern indication message is used to indicate a pattern used by the UE to transmit the SA or data, where the pattern includes retransmission times of the SA or data. Information;

The number of retransmissions is the number of time resource units occupied by the SA or data. The pattern indication message is used to indicate the serial number of the pattern. It can be seen that, according to an embodiment of the present invention, a base station is configured to make a width of a scheduling allocated occupied frequency band equal to a width of a scheduling allocated occupied frequency band corresponding to other user equipments in a coverage area of the base station, and a width of the data occupied frequency band and a base station coverage. The data occupying the bandwidth of the other user equipments in the range is equal. The scheduling information of the base station only needs to indicate the scheduling allocation of the user equipment and the starting position of the frequency band occupied by the data respectively, so that the user equipment can be scheduled to be dispatched explicitly and efficiently. Data, which saves the signaling overhead of the base station; and by transmitting the scheduling assignment or the number of retransmissions of the data by the UE user equipment indicating that the transmission is performed, the user equipment that receives the D2D reception may receive the transmission block transmitted by the user equipment that performs the transmission. When the sizes are different and/or when the transmitting user equipment performs transmission power control, it has considerable receiving performance. Still referring to FIG. 14, another embodiment of the base station is provided. The base station 4000 includes: a transmitter 41. The transmitter 41 is configured to indicate, by using a bit field or higher layer signaling of downlink control information, a scheduling allocation of the user equipment UE and/or Or the way resources are allocated;

The transmitter is further configured to send first scheduling information to the UE, where the first scheduling information is used.

As an implementation manner, the first scheduling information includes a start location message, the start location location, and the first scheduling information is further used to indicate that the data of the UE occupies a frequency band in a corresponding resource allocation manner. starting point.

The resource allocation manner is a frequency domain granularity of the SA and/or data occupation; and/or the resource allocation manner is a time domain granularity of the SA and/or data occupation; and/or

The resource allocation mode is a pattern of the SA and/or data usage.

As another implementation manner, the transmitter 41 is further configured to indicate, by using a bit field or higher layer signaling of the downlink control information, a difference in the number of time domain time units of the data of the UE with respect to scheduling.

It can be seen that, according to the embodiment of the present invention, the base station can allocate the time domain and the frequency domain resource corresponding to the resource allocation of the at least two resources to the different UEs, and allocate resources more flexibly, thereby saving the base station. Signaling overhead increases the efficiency of the system. Still further referring to FIG. 14, a further embodiment of the base station is provided. The base station 4000 includes: a transmitter 41. The transmitter 41 is configured to send configuration information to the user equipment UE, where the configuration information is used to indicate at least two resource pools. a time-frequency location, where at least one first resource pool corresponds to a first resource allocation manner, and at least one second resource pool corresponds to a second resource allocation manner;

The transmitter 41 is further configured to send, to the UE, a resource pool indication message, where the resource pool indication message is used to indicate the at least one first resource pool or at least one that is allocated to the UE to send a scheduling allocation SA and/or data. Second resource pool;

The transmitter 41 is further configured to send the first scheduling information to the UE, where the first scheduling information is used to indicate that the at least one first resource pool or the at least one second resource pool occupied by the SA of the UE is used. a domain and/or a frequency domain resource; and/or the first scheduling information is further used to indicate a time domain and/or a time domain in the at least one first resource pool or the at least one second resource pool occupied by data of the UE Frequency domain resources.

In an implementation, the first scheduling information includes a start location message, where the start location message is used to indicate that the SA occupies a frequency band in the at least one first resource pool or at least one second resource pool. And a start location message; and/or the start location message is used to indicate that the data occupies a starting location of a frequency band in the at least one first resource pool or the at least one second resource pool.

The resource allocation mode is a pattern of the SA and/or data usage.

It can be seen that, according to an embodiment of the present invention, a base station configures at least two D2D communication resource pools that do not overlap in time, so that the terminal can flexibly use different resource allocation modes; from a system perspective, different resources are obtained. The time domain and frequency domain resources of the pool can be configured to different terminals, allocate resources more flexibly, save signaling overhead of the base station, and improve system efficiency. FIG. 15 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. The user equipment 5000 includes: a receiver 51 and a transmitter 52.

The receiver 51 is configured to receive a first scheduling message that is sent by the base station, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band, and the first scheduling information is further used to indicate the The data of the UE occupies the starting position of the frequency band;

The transmitter 52 is configured to start at a starting position of the SA occupied frequency band according to the first scheduling information. Transmitting the SA to a second UE, and transmitting the data to the second UE at a starting position of a frequency band occupied by the data;

As another implementation manner, the transmitter 52 is further configured to retransmit the SA or data to the second UE according to the number of retransmissions of the SA or data indicated by the first scheduling information.

As a further implementation, the receiver 51 is further configured to receive a pattern indication message sent by the base station, where the pattern indication message is used to indicate a pattern used by the first UE to transmit the SA or data, where the pattern is Information including the number of retransmissions of the SA or data;

The transmitter 52 is further configured to retransmit the S A or data to the second UE according to the information about the number of retransmissions;

The number of retransmissions is the number of time resource units occupied by the S A or the data. The pattern indication message is used to indicate the serial number of the pattern.

It can be seen that, according to an embodiment of the present invention, the user equipment receives the scheduling information of the base station, and the base station sets the width of the scheduling allocated occupied frequency band to be equal to the width of the scheduling allocated occupied frequency band corresponding to other user equipments in the coverage of the base station, and makes the data The width of the occupied frequency band is equal to the width of the data occupied frequency band corresponding to other user equipments in the coverage of the base station, so that the scheduling information of the base station only needs to indicate the scheduling allocation of the user equipment and the starting position of the data occupying the frequency band respectively, so that the base station can be made. Clearly and efficiently scheduling user equipment to send scheduling allocations and data, saving signaling overhead of the base station, and the user equipment can accurately transmit SA and data according to the frequency bands occupied by the SA and the data and the starting positions of the respective occupied frequency bands; And by instructing the user equipment to send the scheduling assignment or the number of retransmissions of the data, the user equipment that can be received by the D2D can transmit when the transmission block size of the user equipment that receives the transmission is different and/or when the user equipment that performs the transmission transmits Power control, with When the reception performance. Still referring to FIG. 15, another embodiment of the user equipment is provided. The user equipment 5000 includes: a receiver 51 and a transmitter 52.

The receiver 51 is configured to receive, by the base station, a bit field or a high layer signaling indication of the downlink control information. Scheduling allocation of the user equipment UE and/or resource allocation manner of the data;

The receiver 51 is further configured to receive the first scheduling information that is sent by the base station, where the first scheduling information is used and/or the first scheduling information is further used to indicate that the data of the UE is occupied by the corresponding resource allocation mode. The time domain and/or the frequency domain resource unit; the source sends the SA to the second UE; and/or the time domain and/or the frequency domain resource occupied by the first UE in the resource allocation mode corresponding to the data The data is sent to the second UE.

In an implementation manner, the first scheduling information includes a start location message;

And transmitting the SA to the second UE on the frequency domain resource; and/or the first UE to the second UE on the time domain and/or the frequency domain resource occupied by the resource allocation mode corresponding to the data The step of sending the data is specifically: the second UE sends the SA; and/or the first UE sends the start location of the frequency band occupied by the resource allocation mode corresponding to the data to the second UE. Data.

Wherein: the resource allocation manner is a frequency domain granularity occupied by the SA and/or data; and/or the resource allocation manner is a time domain granularity occupied by the SA and/or data; and/or

The resource allocation mode is a pattern of the SA and/or data usage.

In another implementation:

The receiver 51 is further configured to receive, by the base station, a bit field or high layer signaling of the downlink control information, indicating a difference in the number of time domain time units allocated by the data with respect to the scheduling;

The transmitter 52 is further configured to sequentially send the scheduling assignment and data to the second UE according to the difference in the number of time domain time units.

It can be seen that, according to a user equipment provided by the embodiment of the present invention, the base station can configure the at least two resource allocation manners, so that the UE can flexibly use different resource allocation manners; from the system perspective, the different resources are allocated corresponding time domains. The frequency domain resources can be configured to different UEs to allocate resources more flexibly, which saves the signaling overhead of the base station and improves the efficiency of the system. Still referring to FIG. 15, another embodiment of the user equipment is provided. The user equipment 5000 includes: Receiver 51 and transmitter 52.

The receiver 51 is configured to receive configuration information sent by the base station, where the configuration information is used to indicate a time-frequency location of the at least two resource pools, where the at least one first resource pool corresponds to the first resource allocation mode, and the at least one second resource pool Corresponding to the second resource allocation mode;

The receiver 51 is further configured to receive a resource pool indication message sent by the base station, where the resource pool indication message is used to indicate the at least one first that is allocated to the first UE to send a scheduling allocation SA and/or data. a resource pool or at least one second resource pool;

The receiver 51 is further configured to receive the first scheduling information that is sent by the base station, where the first scheduling information is used to indicate the at least one first resource pool or at least one second that is occupied by the SA of the first UE. a time domain and/or a frequency domain resource in the resource pool; and/or the first scheduling information is further used to indicate the at least one first resource pool or the at least one second resource pool occupied by data of the first UE Time domain and / or frequency domain resources;

The sender 52 is configured to send the SA to the second UE on the time domain and/or the frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the SA; and/or The first UE sends the data to the second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the data.

Transmitting, by the first UE, the first UE, to the second UE, on the time domain and/or the frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the SA And transmitting to the second UE on the time domain and/or the frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the data; The step of the data, specifically: the first UE sends the SA to the second UE at a starting position of a frequency band in the at least one first resource pool or the at least one second resource pool occupied by the SA; And/or the first UE sends the data to the second UE at a starting position of a frequency band in the at least one first resource pool or the at least one second resource pool occupied by the data.

The resource allocation mode is a pattern of the SA and/or data usage.

It can be seen that, according to a user equipment provided by the embodiment of the present invention, the base station can configure a D2D communication resource pool that does not overlap at least two times, so that the UE can flexibly use different resource allocation modes. From a system perspective, the time domain and frequency domain resources of different resource pools can be configured to different UEs, and resources can be allocated more flexibly, which saves signaling overhead of the base station and improves system efficiency.

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

In the above embodiments, the descriptions of the various embodiments are different, and the details are not described in the specific embodiments. For details, refer to related descriptions of other embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by hardware implementation, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. For example, but not limited to: the computer readable medium may include a random access memory (RAM), a read-only memory (ROM), and an electrically erasable programmable read-only memory (Electrically Erasable Programmable). Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, disk storage media or other magnetic storage devices, or can be used to carry or store an instruction or data structure The desired program code and any other medium that can be accessed by the computer. Also. Any connection may suitably be a computer readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, Then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the associated medium. As used in the present invention, a disk and a disc include a compact disc (CD), a laser disc, a disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media. In summary, the above description is only a preferred embodiment of the technical solution of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Rights request

A resource configuration method, which is characterized by comprising:

The method according to claim 1, wherein the first scheduling information is downlink control information or higher layer signaling.

3. The method according to claim 1 or 2, further comprising:

The number of retransmissions is the number of time resource units occupied by the SA or the data.

4. The method according to claim 3, wherein the pattern indication message is used to indicate a serial number of the pattern.

5. A resource configuration method, which is characterized by:

The base station sends the first scheduling information to the UE, where the first scheduling information is used to indicate that the first scheduling information is further used to indicate that the data of the UE is occupied in a corresponding resource allocation mode. And/or frequency domain resource units.

The method according to claim 5, wherein the first scheduling information includes a start location message, where the start location message is used to indicate that the scheduling allocation SA of the UE is in a corresponding resource allocation mode. And occupying a starting position of the frequency band; the first scheduling information is further used to indicate that the data of the UE occupies a starting position of a frequency band in a corresponding resource allocation manner.

7. The method of claim 5 or 6, wherein:

The resource allocation mode is a pattern of the SA and/or data usage.

8. The method of claim 5, further comprising:

The base station indicates, by using a bit field or a high layer signaling of the downlink control information, a difference in the number of time domain time units of the data of the UE relative to the scheduling.

9. A resource configuration method, characterized in that:

10. The method of claim 9 wherein: The first scheduling information includes a start location message, where the start location message is used to indicate that the SA occupies a starting location of a frequency band in the at least one first resource pool or at least one second resource pool; and Or the starting location message is used to indicate that the data occupies a starting location of a frequency band in the at least one first resource pool or the at least one second resource pool.

11. Method according to claim 9 or 10, characterized in that it:

The resource allocation mode is a pattern of the SA and/or data usage.

12. A user direct communication method, characterized in that:

The first user equipment UE receives the first scheduling message sent by the base station, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate the UE The data occupies the starting position of the frequency band;

Transmitting, by the first UE, the SA to a second UE at a starting position of the SA occupied frequency band according to the first scheduling information, and sending a start location of the frequency band occupied by the data to the second UE Sending the data;

The method according to claim 12, wherein the first scheduling information is downlink control information or higher layer signaling.

The method according to claim 12 or 13, further comprising:

The first UE receives a pattern indication message sent by the base station, where the pattern indication message is used to indicate a pattern used by the first UE to transmit the SA or data, where the pattern includes the SA Or information on the number of retransmissions of data;

The method according to claim 14, wherein the pattern indication message is used to indicate a serial number of the pattern.

A user direct communication method, comprising:

The first UE receives the first scheduling information sent by the base station, where the first scheduling information is used and/or the first scheduling information is further used to indicate that the data of the UE is occupied by the corresponding resource allocation mode. The time domain and/or the frequency domain resource unit; the SA is sent to the second UE; and/or the first UE is in the time domain and/or the frequency domain resource occupied by the resource allocation mode corresponding to the data. Transmitting the data to the second UE.

The method according to claim 16, the first scheduling information includes a start location message, the SA is sent to the second UE, and/or the resource allocation manner corresponding to the data by the first UE The data is sent to the second UE on the time domain and/or the frequency domain resource that is occupied, specifically: the second UE sends the SA; and/or the resource allocation corresponding to the data by the first UE The starting position of the frequency band occupied in the mode is sent to the second UE.

18. The method of claim 16 or 17, wherein:

The resource allocation manner is a frequency domain granularity occupied by the SA and/or data; and/or The resource allocation manner is a time domain granularity occupied by the SA and/or data; and/or the resource allocation manner is a pattern used by the SA and/or data.

The method of claim 16, further comprising:

Receiving, by the base station, a bit field or higher layer signaling of the downlink control information, indicating a difference in the number of time domain time units allocated by the data with respect to the scheduling;

UE.

20. A user direct communication method, comprising:

The first UE receives the first scheduling information sent by the base station, where the first scheduling information is used to indicate that the at least one first resource pool or at least one second resource pool occupied by the SA of the first UE is used. Time domain and/or frequency domain resource; and/or the first scheduling information is further used to indicate that the data of the first UE is occupied by the at least one first resource pool or at least one second resource pool Domain and/or frequency domain resources;

The method according to claim 20, wherein the first scheduling information includes a start location message;

The at least one first resource pool or at least one second occupied by the first UE in the SA Sending the SA to the second UE on the time domain and/or the frequency domain resource in the resource pool; and/or the at least one first resource pool or the at least one second resource occupied by the first UE in the data Sending the data to the second UE on the time domain and/or the frequency domain resource in the pool, specifically:

22. The method of claim 20 or 21, wherein:

The resource allocation mode is a pattern of the SA and/or data usage.

A base station, comprising:

The base station according to claim 23, wherein the first scheduling information is downlink control information or higher layer signaling.

25. The base station of claim 23 or 24, wherein:

The sending unit is further configured to send, to the UE, a pattern indication message, where the pattern indication message is used to indicate a pattern used by the UE to transmit the SA or data, where the pattern includes retransmission of the SA or data. Information of the number of times; The number of retransmissions is the number of time resource units occupied by the SA or data.

The base station according to claim 25, wherein the pattern indication message is used to indicate a sequence number of the pattern.

27. A base station, comprising:

The base station according to claim 27, wherein the first scheduling information includes a start location message, and the start location message is used to indicate that the scheduling allocation SA of the UE is in a corresponding resource allocation mode. The starting position of the occupied frequency band; the first scheduling information is further used to indicate the UE

The base station according to claim 27 or 28, characterized in that:

The resource allocation mode is a pattern of the SA and/or data usage.

30. The base station of claim 27, wherein:

The sending unit is further configured to indicate, by using a bit field or a high layer signaling of the downlink control information, a difference in the number of time domain time units of the data of the UE relative to the scheduling.

31. A base station, comprising:

a sending unit, configured to send configuration information to the user equipment UE, where the configuration information is used to indicate to The time-frequency location of the two resource pools, where the at least one first resource pool corresponds to the first resource allocation mode, and the at least one second resource pool corresponds to the second resource allocation mode;

32. The base station according to claim 31, wherein:

33. The base station according to claim 31 or 32, characterized in that:

The resource allocation mode is a pattern of the SA and/or data usage.

34. A user equipment, comprising:

a receiving unit, configured to receive a first scheduling message sent by the base station, where the first scheduling information is used to indicate that the scheduling of the UE allocates a starting position of the SA occupied frequency band; the first scheduling information is further used to indicate the UE The data occupies the starting position of the frequency band;

a sending unit, configured to send, according to the first scheduling information, the SA to a second UE at a starting position of the SA occupied frequency band, and to a start location of the frequency band occupied by the data to the second UE Sending the data; The width of the SA occupied frequency band is equal to the width of the SA occupied frequency band corresponding to other UEs in the coverage of the base station; the width of the data occupied frequency band and the data occupied frequency band corresponding to other UEs in the coverage of the base station The width is equal.

The user equipment according to claim 34, wherein the first scheduling information is downlink control information or higher layer signaling.

The user equipment according to claim 34 or 35, further comprising: a first retransmission unit, configured to: according to the number of retransmissions of the SA or data indicated by the first scheduling information, Transmitting the SA or data by the second UE; or

The user equipment further includes:

37. The user equipment of claim 36, wherein the pattern indication message is for indicating a serial number of the pattern.

38. A user equipment, comprising:

a receiving unit, configured to receive, by the receiving unit, the first scheduling information that is sent by the base station by using the bit field or the high layer signaling of the downlink control information, where the first scheduling information unit is sent by the base station; and/or The first scheduling information is further used to indicate a time domain and/or a frequency domain resource unit occupied by the data of the UE in a corresponding resource allocation manner; Sending, by the source, the SA to the second UE; and/or sending, by the first UE, the data to the second UE on a time domain and/or a frequency domain resource occupied by the resource allocation mode corresponding to the data. .

39. The user equipment of claim 38, the first scheduling information includes a start location message;

The sending unit is specifically configured to:

The starting location transmits the data to the second UE.

40. The user equipment of claim 38 or 39, wherein

The resource allocation manner is frequency domain granularity and/or occupied by the SA and/or data.

The resource allocation manner is time domain granularity and/or occupied by the SA and/or data.

The resource allocation mode is a pattern of the SA and/or data usage.

41. The user equipment of claim 38, wherein:

The sending unit is further configured to sequentially send the scheduling assignment and data to the second UE according to the difference in the number of time domain time units.

42. A user equipment, comprising:

The receiving unit is further configured to receive first scheduling information sent by the base station, where the first scheduling information is sent The information is used to indicate the time domain and/or the frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the SA of the first UE; and/or the first scheduling information is further used. a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool that is occupied by the data of the first UE;

The user equipment according to claim 42, wherein the first scheduling information includes a start location message;

The sending unit is specifically configured to:

44. The user equipment of claim 42 or 43, wherein

The resource allocation mode is a pattern of the SA and/or data usage.

45. A base station, comprising: a transmitter;

The base station according to claim 45, wherein the first scheduling information is downlink control information or higher layer signaling.

47. The base station of claim 45 or 46, wherein:

The base station according to claim 47, wherein the pattern indication message is used to indicate a sequence number of the pattern.

49. A base station, comprising: a transmitter;

The base station according to claim 49, wherein the first scheduling information includes a start location message, where the start location message is used to indicate that the scheduling allocation SA of the UE is in a corresponding resource allocation mode. The starting position of the occupied frequency band; the first scheduling information is further used to indicate the UE

51. The base station of claim 49 or 50, wherein:

The resource allocation manner is a time domain granularity of the SA and/or data occupation; and/or The resource allocation mode is a pattern used by the SA and/or data.

52. The base station of claim 49, wherein:

The transmitter is further configured to indicate, by using a bit field or a high layer signaling of the downlink control information, a difference in the number of time domain time units of the data of the UE with respect to scheduling.

A base station, comprising: a transmitter;

54. The base station according to claim 53, wherein:

55. The base station according to claim 53 or 54, wherein:

The resource allocation mode is a pattern used by the SA and/or data.

56. A user equipment, comprising: a receiver and a transmitter;

The user equipment according to claim 56, wherein the first scheduling information is downlink control information or higher layer signaling.

58. The user equipment of claim 56 or 57, wherein:

59. The user equipment according to claim 58, wherein the pattern indication message is used to indicate a serial number of the pattern.

60. A user equipment, comprising: a receiver and a transmitter;

a receiver, configured to receive, by a base station, a user indicated by a bit field or a high layer signaling of downlink control information Scheduling allocation of device UE and/or resource allocation mode of data;

The receiver is further configured to receive first scheduling information sent by the base station, the first scheduling information element; and/or the first scheduling information is further used to indicate that the data of the UE is in a corresponding resource allocation manner The time domain and/or the frequency domain resource unit that is occupied; the SA is sent to the second UE; and/or the time domain and/or the frequency domain occupied by the first UE in the resource allocation mode corresponding to the data The data is sent to the second UE on a resource.

61. The user equipment of claim 60, the first scheduling information comprises a start location message; the SA is sent to a second UE on a domain and/or a frequency domain resource; and/or the first UE is The step of sending the data to the second UE in the time domain and/or the frequency domain resource occupied by the resource allocation mode corresponding to the data is specifically:

62. The user equipment of claim 60 or 61, wherein

The resource allocation mode is a pattern of the SA and/or data usage.

63. The user equipment of claim 60, wherein:

The transmitter is further configured to sequentially send the scheduling allocation and data to the second UE according to the difference in the number of time domain time units.

64. A user equipment, comprising: a receiver and a transmitter;

The receiver is further configured to receive the first scheduling information that is sent by the base station, where the first scheduling information is used to indicate the at least one first resource pool or at least one second resource that is occupied by the SA of the first UE. a time domain and/or a frequency resource in the pool; and/or the first scheduling information is further used to indicate that the data of the first UE is occupied by the at least one first resource pool or at least one second resource pool Time domain and/or frequency domain resources;

The user equipment according to claim 64, wherein the first scheduling information includes a start location message;

Transmitting, by the first UE, the SA to the second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the SA And/or the first UE sends the the second UE to the second UE on a time domain and/or a frequency domain resource in the at least one first resource pool or the at least one second resource pool occupied by the data The steps of the data are specifically as follows:

66. The user equipment according to claim 64 or 65, wherein the resource allocation manner is that the SA and/or the frequency domain granularity occupied by the data and/or the resource allocation manner is the SA and/or The time domain granularity occupied by the data and/or the resource allocation manner is the pattern used by the SA and/or data.