WO2017113173A1

WO2017113173A1 - Link resource request method, user equipment and base station

Info

Publication number: WO2017113173A1
Application number: PCT/CN2015/099830
Authority: WO
Inventors: 时洁; 曹振臻
Original assignee: 华为技术有限公司
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2017-07-06
Also published as: CN108370561B; CN108370561A

Abstract

Provided are a link resource request method, a user equipment and a base station, relating to the field of communications, and used for being able to request for a link resource for a UE, used for relaying data of a remote UE to an eNB or used for data transmission between the UE and a UE belonging to a different group. The method comprises: a relay user equipment sending a connection request to a base station, wherein the connection request is used to indicate that the relay user equipment is to transmit data to the base station; the relay user equipment receiving first configuration information sent by the base station; the relay user equipment generating a buffer status report according to the first configuration information, and reporting the buffer status report to the base station, wherein the buffer status report is used to indicate the size of relay data and a logical channel and/or a logical channel group corresponding to the relay data; the relay user equipment receiving second configuration information sent by the base station; and the relay user equipment sending the relay data to the base station by means of a wireless resource allocated to the relay user equipment by the base station.

Description

Method for requesting link resource, user equipment and base station

Technical field

The present invention relates to the field of communications, and in particular, to a method for requesting link resources, a user equipment, and a base station.

Background technique

A device (Device To Device) technology is introduced in the LTE (Long Term Evolution) R12, that is, the UE under the eNB can communicate autonomously or under the management of the eNB. As shown in FIG. 1, UE1 belongs to group A, and UE1 can communicate with UE2 in group A. UE1 also belongs to group B at the same time, and UE1 can also communicate with UE3 in group B.

With the further development of the wireless communication technology, the requirements for the D2D technology are further enhanced, and the UE is required to communicate not only with other UEs in the group but also with other UEs belonging to different groups. In addition, remote UEs outside the coverage of the eNB may also relay data to the eNB using relay UEs within the coverage of the eNB, or the eNB relays data to the remote UE by relaying UE data.

Generally, the UE can report the size of the data to be sent to the eNB through the BSR (Buffer Status Report), and request the eNB to allocate a resource link for transmitting data. The current BSR is only applicable to the UE requesting the D2D link resource, that is, the UE requests the link resource for the UE and the intra-group UE, or the UE can only use the BSR to request the link resource for the data transmission between itself and the eNB.

Summary of the invention

An embodiment of the present invention provides a method for requesting a link resource, a user equipment, and a base station, which can request a link resource for a UE, and are used for relaying data of a remote UE to an eNB, or for a UE and a group belonging to different groups. Data transmission between UEs.

Currently, the D2D technology requires the UE (user equipment) not only to communicate with the same group of UEs, but also to communicate with UEs that do not belong to the same group. In addition, the UE in the coverage of the base station can also relay data of the UE outside the coverage of the base station to the base station. Alternatively, the base station relays data to the UE outside the coverage of the base station by the UE within the coverage.

In the above scenario, a UE that is in the coverage of the base station for relaying data is referred to as a relay user equipment, and a UE that is outside the coverage of the base station is referred to as a remote user equipment.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, a method for requesting a link resource is disclosed, including:

The relay user equipment first sends a connection request to the base station, instructing the base station that the relay user equipment is to transmit data to the base station. Of course, the data includes relay data that the remote user equipment needs to transmit to the base station through the relay user equipment. It should be noted that the relay user equipment is in the coverage of the base station, and the remote user equipment is outside the coverage of the base station, that is, the relay user equipment does not belong to the remote user equipment. Group. In addition, the connection request may further carry a service characteristic of the remote user equipment, such as: Qos. Here, the service characteristics of the remote user equipment can be obtained by the relay user equipment from the remote user equipment before.

The relay user equipment receives the first configuration information sent by the base station; the first configuration information is used to indicate a radio bearer allocated by the base station for the relay data and a logical channel of the radio bearer. The identifier of the radio bearer may be an ID of the radio bearer, and the identifier information of the logical channel of the radio bearer may be an LCGID.

The relay user equipment generates a report buffer status report according to the first configuration information, and reports a cache status report to the base station. In fact, the relay user equipment determines, according to the first configuration information, the radio bearer allocated by the base station for the relay data and the logical channel of the radio bearer, and selects a logical channel group and/or a logical channel therein, and then selects the logical channel and/or The logical channel group and the size of the relay data are reported to the base station through the buffer status report, so that the base station allocates radio resources for the relay data. That is, the buffer status report is used to indicate the size of the relay data and the logical channel and/or logical channel group corresponding to the relay data.

The relay user equipment receives the second configuration information sent by the base station, and the second configuration information carries the base station according to the report buffer status report as the middle Information about the wireless resources allocated by the user equipment.

The relay user equipment sends the relay data to the base station by using a radio resource allocated by the base station to the relay user equipment.

In the prior art, the UE can only request the link resource from the eNB (Evolved Base Station) through the BSR. The current BSR is only applicable to the UE requesting the D2D link resource, that is, the UE requests the link resource for itself and the intra-group UE. Alternatively, the UE can only use the BSR to request link resources for data transmission between itself and the eNB. The UE cannot request a link resource for relaying data of the remote UE to the base station to the base station. The present invention is capable of reporting a buffer status report to a base station, requesting a link resource for the UE, and relaying data of the remote UE to the eNB.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the MAC CE (Media Access Control Control Element) of the buffer status report may be associated with an existing BSR (ie, the present invention) The MAC CE of the first BSR is the same, that is, the MAC CE of the buffer status report is the first MAC CE; wherein the first MAC CE is used to indicate the first BSR, and the first BSR is used for the The relay user equipment requests link resources for forwarding the relay data, and is used by the relay user equipment to request link resources for data transmission between the relay user equipment and the base station. It should be noted that the MAC CE is an identifier in the data packet header, and is used to indicate what data the data packet data part is. For example, the fourth MAC CE of the packet header is 1001, and the fourth representing the data portion is the BSR.

Or, the MAC CE of the buffer status report is different from the MAC CE of the existing BSR, and is a second MAC CE identifier. The second MAC CE is different from the first MAC CE, where the second MAC CE is used to indicate a second BSR, and the second BSR is used by the relay user equipment to forward the relay data. Request link resources.

That is to say, the cache status report of the present invention can reuse the MAC CE of the existing BSR, such as: 1001. It is also possible to set a new MAC CE for the cache status report provided by the present invention, such as: 10010.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, if the relay user equipment needs to be forwarded for one or more of the remote user equipments Data, the wireless assigned to the relay data The bearer is one of the bearers between the relay user equipment and the base station. That is to say, when the relay user forwards data to the base station for the one or more remote user equipments, the shared one is a bearer, and the bearer may be a radio bearer or a core network level bearer.

The first configuration information specifically includes the identifier information of the one bearer and the identifier information of the logical channel group in which the one bearer is located, and the priority information of the logical channel corresponding to the one bearer. Here, the logical channel group includes a plurality of logical channels with the same bearer service. After the base station allocates a logical channel group to the relay data, the base station needs to indicate the priority of each logical channel in the logical channel group of the relay user equipment, so as to relay. The user equipment selects a suitable logical channel.

In conjunction with the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, if the relay user equipment needs to be forwarded to one or more of the remote user equipments Data, the radio bearer allocated for the relay data is X bearers in the bearer between the relay user equipment and the base station; the X bearers are determined according to attributes of the remote bearer, The remote bearer is a bearer between the remote user equipment and the relay user equipment, and there are X remote bearers with different attributes between the relay user equipment and the remote user equipment, and the X bearers are not the same;

The first configuration information specifically includes the identifier information of the X bearers and the identifier information of the logical channel group where the X bearers are located, and the priority information of the logical channel corresponding to the X bearers.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, if the relay user equipment needs to be forwarded for one or more of the remote user equipments Data, the radio bearer allocated for the relay data is Y bearers in the bearer between the relay user equipment and the base station; the Y bearers are determined according to the number of the remote user equipment, The Y is the number of the remote user equipment, and the Y bearers are all different. That is, when the relay user equipment forwards data to the base station for the one or more remote user equipments, a bearer is allocated for each remote user equipment data. For example, if the relay user equipment needs to forward data for four remote user equipments, the base station allocates four relay data. Hosted.

The first configuration information includes the identifier information of the Y bearers and the identifier information of the logical channel group where the Y bearers are located, and the priority information of the logical channels corresponding to the Y bearers.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, if the relay user equipment needs to be forwarded for one or more of the remote user equipments Data, the radio bearer allocated for the relay data is Q bearers in the bearer between the relay user equipment and the base station; the Q bearers are according to the one or more remote users. The number of remote bearers between the device and the relay user equipment is determined, and the Q is the number of remote bearers between the one or more remote user equipments and the relay user equipment. For example, if the relay user equipment needs to forward data for 4 remote user equipments, and each remote user equipment corresponds to 2 RBs, the base station needs to allocate 2*4=8 bearers for the relay data.

In this case, the first configuration information specifically includes the identifier information of the Q bearers and the identifier information of the logical channel group where the Q bearers are located, and the priority information of the logical channel corresponding to the Q bearers.

With reference to any one of the third to fifth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the logical channel allocated by the base station for the relay data may be an existing BSR ( That is, a logical channel corresponding to data transmission between the base station and the UE and a data transmission request link resource between the UE and the same group of UEs, or a logical channel group may be newly set for the relay data, that is, the logic The channel group is any one of the N logical channel groups corresponding to the first BSR; or the logical channel group is different from the N logical channel groups.

Similarly, the logical channel is any one of T logical channels corresponding to the first BSR; or the logical channel is different from the T logical channels.

In a second aspect, a method for requesting a link resource includes:

The first user equipment reports a first cache status report to the base station, where the first cache status report is used to indicate a size of the first data, and a logical letter corresponding to the first data The first group of data is data transmitted between the first user equipment and the second user equipment, and the first user equipment and the second user equipment are not in one group.

It should be noted that the first data is data transmitted between the first user equipment and the second user equipment. The existing BSR can only request link resources for data transmission between the UE and the same group of UEs. In the present invention, link resources can be requested for data transmission between the UE and different groups of UEs.

The first user equipment receives the resource configuration information sent by the base station; the resource configuration information is used to indicate that the base station reports the radio resource allocated to the first data according to the first buffer status;

Determining, by the first device, the radio resource allocated by the base station for the first data according to the resource configuration information;

The first user equipment performs data transmission with the second user equipment by using the radio resource allocated by the base station for the first data.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the first buffer status report includes a size of the first data, and an identifier of a Z logical channel group corresponding to the first data. That is, the first user equipment determines a corresponding logical channel group according to the service characteristic of the first data, and reports the size of the first data and the identifier of the determined logical channel group to the base station.

The logical channel group corresponding to the first data may be one or more of the logical channel groups corresponding to the existing BSR (that is, the third BSR). Therefore, the first cache status report further includes: Identification information of the N logical channel groups; the N logical channel groups are logical channel groups other than the Zth logical channel group among the M logical channel groups corresponding to the third BSR;

The third BSR is used by the first user equipment as a data transmission request link resource between the first user equipment and the third user equipment; the third user equipment and the first user Devices belong to the same group. That is, the existing BSR can request link resources for data transmission between the UE and the same group of UEs.

In combination with the first possible implementation of the second aspect, the second aspect of the second aspect In a possible implementation, the method further includes: the first user equipment reporting logical channel group allocation information to the base station; and the logical channel group allocation information carrying an index value of the Z logical channel groups .

For example, if the third BSR corresponds to 16 logical channel groups, which are sequentially numbered from 0 to 15, the logical channel group used by the first data is the first six of the 16 logical channel groups. And the index value carried by the first user equipment in the logical channel group allocation information is 0, 1, 2, 3, 4, and 5, and the base station receives the logical channel group allocation information to determine that the first data corresponds to The logical channel group is a logical channel group numbered 0-5.

With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the MAC CE of the first buffer status report is a third MAC CE, and the third MAC CE is The MAC CE of the third BSR is different;

The third BSR is further configured to request a link resource for the relay data, where the relay data is data that the remote user equipment needs to forward to the base station by using the first user equipment.

That is, the first cache status report may multiplex the MAC CE of the existing BSR, or may set a new MAC CE for the first cache status report.

In a third aspect, a method for requesting a link resource is disclosed, including:

Generally, when the user equipment needs to forward the data of the remote user equipment to the base station as the relay user equipment, a connection request is sent to the base station to inform the base station that the data of the remote user equipment will be relayed.

First, the base station receives a connection request sent by the relay user equipment; the connection request is used to indicate that the relay user equipment is to transmit data to the base station, and the data includes that the remote user equipment needs to pass the relay user equipment. Data transmitted to the base station; the relay user equipment and the remote user equipment do not belong to the same group.

The base station allocates a radio bearer to the relay data, and sends first configuration information to the user equipment; the first configuration information is used to indicate a radio bearer allocated by the base station for the relay data, and the The logical channel of the radio bearer.

Receiving, by the base station, a buffer status report reported by the user equipment, where the cache is in a cache The status report is used to indicate the size of the relay data and the logical channel and/or logical channel group corresponding to the relay data.

The base station allocates radio resources to the relay user equipment according to the report buffer status report, and sends second configuration information to the user equipment; the second configuration information carries the base station as the relay user equipment. Information about allocated wireless resources;

The base station receives the relay data that is sent by the user equipment by using the radio resource.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the MAC CE of the buffer status report is a first MAC CE, and the first MAC CE is used to indicate a first BSR, where the first The BSR is used by the relay user equipment to request the link resource for forwarding the relay data, and for the relay user equipment to request a link resource for data transmission between the relay user equipment and the base station;

Or, the MAC CE of the buffer status report is a second MAC CE identifier; the second MAC CE is different from the first MAC CE, and the second MAC CE is used to indicate a second BSR, the second BSR The relay user equipment is configured to request a link resource for forwarding the relay data.

With the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, if the relay user equipment needs to be forwarded for one or more of the remote user equipments Data, the base station assigning a radio bearer to the relay data, specifically:

The radio bearer allocated by the base station to the relay data is one of the bearers between the relay user equipment and the base station;

The first configuration information specifically includes the identifier information of the one bearer and the identifier information of the logical channel group in which the one bearer is located, and the priority information of the logical channel corresponding to the one bearer.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, if the relay user equipment needs to be forwarded for one or more of the remote user equipments Data, the base station assigning a radio bearer to the relay data, specifically:

The radio bearer allocated by the base station to the relay data is X bearers in the bearer between the relay user equipment and the base station; the X bearers are determined according to attributes of the remote bearer, The remote bearer is a bearer between the remote user equipment and the relay user equipment, and there are X remote bearers with different attributes between the relay user equipment and the remote user equipment, and the X bearers are not the same;

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, if the relay user equipment needs to be forwarded to one or more of the remote user equipments Data, the base station assigning a radio bearer to the relay data, specifically:

The radio bearer allocated by the base station for the relay data is Y bearers in the bearer between the relay user equipment and the base station; the Y bearers are determined according to the number of the remote user equipment, The Y is the number of the remote user equipment, and the Y bearers are different;

The first configuration information specifically includes the identifier information of the Y bearers and the identifier information of the logical channel group where the Y bearers are located, and the priority information of the logical channel corresponding to the Y bearers.

With the third aspect or the first possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, if the relay user equipment needs to be forwarded to one or more of the remote user equipments Data, the base station assigning a radio bearer to the relay data, specifically:

The radio bearer allocated by the base station for the relay data is Q bearers in the bearer between the relay user equipment and the base station; the Q bearers are according to the one or more remote users. Determining, by the number of remote bearers between the device and the relay user equipment, the Q is a number of remote bearers between the one or more remote user equipments and the relay user equipment;

The first configuration information specifically includes the identification information and the location of the Q bearers. The identifier information of the logical channel group in which the Q bearers are located, and the priority information of the logical channel corresponding to the Q bearers.

With reference to any one of the third to fifth possible implementation manners of the third aspect, in a sixth possible implementation manner of the third aspect, the logical channel group is corresponding to the first BSR Any one of N logical channel groups; or, the logical channel group is different from the N logical channel groups.

With reference to any one of the third to fifth possible implementation manners of the third aspect, in a seventh possible implementation manner of the third aspect, the logical channel is a T corresponding to the first BSR Any one of the logical channels; or the logical channel is different from the T logical channels.

In a fourth aspect, a method for requesting a link resource is disclosed, including:

Receiving, by the base station, a first buffer status report reported by the first user equipment, where the first buffer status report is used to indicate a size of the first data, and logical channel group information corresponding to the first data; Data transmitted between the first user equipment and the second user equipment, where the first user equipment and the second user equipment are not in a group;

The base station allocates a radio resource for the first data, where the radio resource is used for data transmission between the first user equipment and the second user equipment;

The base station sends the resource configuration information to the first user equipment, where the resource configuration information is used to indicate that the base station reports the radio resource allocated to the first data according to the first buffer status.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the first buffer status report includes a size of the first data, and an identifier of Z logical channel groups corresponding to the first data;

The first buffer status report further includes: identification information of the N logical channel groups; the N logical channel groups are the Z logical channels in the M logical channel groups corresponding to the third BSR. a group of logical channels outside the group;

The third BSR is used by the first user equipment as a data transmission request link resource between the first user equipment and the third user equipment; the third user The device belongs to the same group as the first user equipment.

In conjunction with the first possible implementation of the fourth aspect, in a second possible implementation of the fourth aspect, the method further includes:

The base station receives the logical channel group allocation information reported by the first user equipment; the logical channel group allocation information carries an index value of the Z logical channel groups.

With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the MAC CE of the first buffer status report is a third MAC CE, and the third MAC CE is The MAC CE of the third BSR is different.

In a fifth aspect, a relay user equipment includes:

a sending unit, configured to send a connection request to the base station, where the connection request is used to indicate that the relay user equipment is to transmit data to the base station, where the data includes a remote user equipment that needs to be transmitted to the Decoding data of the base station; the relay user equipment and the remote user equipment do not belong to the same group;

a receiving unit, configured to receive first configuration information that is sent by the base station, where the first configuration information is used to indicate a radio bearer allocated by the base station for the relay data, and a logical channel group of the radio bearer;

a generating unit, configured to generate a buffer status report according to the first configuration information, and report the buffer status report to the base station; the buffer status report is used to indicate a size of the relay data and the relay data Corresponding logical channel and/or logical channel group;

The sending unit is further configured to report the buffer status report to the base station;

The receiving unit is further configured to receive second configuration information that is sent by the base station, where the second configuration information carries information that the base station reports the radio resource allocated to the relay user equipment according to the report buffer status.

The sending unit is further configured to allocate, by the base station, the relay user equipment The radio resource transmits the relay data to the base station.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the MAC CE of the buffer status report is a first MAC CE, and the first MAC CE is used to indicate a first BSR, where the first The BSR is used by the relay user equipment to request the link resource for forwarding the relay data, and for the relay user equipment to request a link resource for data transmission between the relay user equipment and the base station;

With the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, if the relay user equipment needs to be forwarded for one or more of the remote user equipments Data, the radio bearer allocated for the relay data is one of the bearers between the relay user equipment and the base station;

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, if the relay user equipment needs to be forwarded for one or more of the remote user equipments Data, the radio bearer allocated for the relay data is X bearers in the bearer between the relay user equipment and the base station; the X bearers are determined according to attributes of the remote bearer, The remote bearer is a bearer between the remote user equipment and the relay user equipment, and there are X remote bearers with different attributes between the relay user equipment and the remote user equipment, and the X bearers are not the same;

In combination with the fifth aspect or the first possible implementation of the fifth aspect, in the fifth party In a fourth possible implementation manner, if the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data is the relay user equipment. Y bearers in the bearer with the base station; the Y bearers are determined according to the number of the remote user equipment, where Y is the number of the remote user equipment, and the Y bearers are different ;

With the fifth aspect or the first possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, if the relay user equipment needs to be forwarded for one or more of the remote user equipments Data, the radio bearer allocated for the relay data is Q bearers in the bearer between the relay user equipment and the base station; the Q bearers are according to the one or more remote users. Determining, by the number of remote bearers between the device and the relay user equipment, the Q is a number of remote bearers between the one or more remote user equipments and the relay user equipment;

The first configuration information includes the identifier information of the Q bearers and the identifier information of the logical channel group where the Q bearers are located, and the priority information of the logical channel corresponding to the Q bearers.

With reference to the fifth aspect, or any one of the second to fifth possible implementation manners of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the logical channel group is the first Any one of the corresponding N logical channel groups in the BSR; or the logical channel group is different from the N logical channel groups.

With reference to the fifth aspect, or any one of the second to fifth possible implementation manners of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the logical channel is the first BSR Any one of the corresponding T logical channels; or the logical channel is different from the T logical channels.

In a sixth aspect, a first user equipment is disclosed, including:

a sending unit, configured to report a first cache status report to the base station, where the first cache status report is used to indicate a size of the first data, and a logic corresponding to the first data Channel group information; the first user equipment and the second user equipment are not in one group;

a receiving unit, configured to receive resource configuration information that is sent by the base station, where the resource configuration information is used to indicate that the base station reports a radio resource that is allocated to the first data according to the first buffer status;

a determining unit, configured to determine, according to the resource configuration information, a radio resource allocated by the base station to the first data;

The sending unit is further configured to perform data transmission with the second user equipment by using the radio resource allocated by the base station for the first data.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the first buffer status report includes a size of the first data, and an identifier of Z logical channel groups corresponding to the first data;

The first buffer status report further includes: identification information of N logical channel groups; the N logical channel groups are the Z logical channel groups among the M logical channel groups corresponding to the third BSR a group of logical channels outside the group;

The third BSR is used by the first user equipment as a data transmission request link resource between the first user equipment and the third user equipment; the third user equipment and the first user Devices belong to the same group.

With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the sending unit is further configured to report logical channel group allocation information to the base station; The channel group allocation information carries an index value of the Z logical channel groups.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the MAC CE of the first buffer status report is a third MAC CE; The third MAC CE is different from the MAC CE of the third BSR.

In a seventh aspect, a base station is disclosed, including:

a receiving unit, configured to receive a connection request sent by the relay user equipment, where the connection request is used to indicate that the relay user equipment is to transmit data to the base station, and the data includes a remote user equipment that needs to pass the relay Data transmitted by the user equipment to the base station; the relay user equipment and the remote user equipment do not belong to the same group;

An allocating unit, configured to allocate a radio bearer to the relay data, and send first configuration information to the relay user equipment, where the first configuration information is used to indicate that the base station allocates radio for the relay data Carrying and logical channels of the radio bearers;

The receiving unit is further configured to receive a buffer status report reported by the relay user equipment, where the buffer status report is used to indicate a size of the relay data and a logical channel and/or logic corresponding to the relay data. Channel group

The allocating unit is further configured to allocate a radio resource to the relay user equipment according to the report buffer status report;

a sending unit, configured to send second configuration information to the user equipment, where the second configuration information carries information about a radio resource allocated by the base station to the relay user equipment;

The receiving unit is further configured to receive the relay data that is sent by the relay user equipment by using the radio resource.

With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the MAC CE of the buffer status report is a first MAC CE, and the first MAC CE is used to indicate a first BSR, where the first The BSR is used by the relay user equipment to request the link resource for forwarding the relay data, and for the relay user equipment to request a link resource for data transmission between the relay user equipment and the base station;

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, in the second possible implementation manner of the seventh aspect, if the relay user equipment needs to be one or The plurality of the remote user equipments forward the data, the allocation unit is specifically configured to: the radio bearer allocated for the relay data is one of the bearers between the relay user equipment and the base station;

The first configuration information specifically includes the identifier information of the one bearer and the identifier information of the logical channel group where the one bearer is located, and the priority information of the logical channel included in the logical channel group where the one bearer is located.

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, in a third possible implementation manner of the seventh aspect, if the relay user equipment needs to be forwarded to one or more of the remote user equipments Data, the allocation unit is specifically configured to: the radio bearer allocated for the relay data is X bearers in the bearer between the relay user equipment and the base station; the X bearers are according to the remote end Determining the bearer attribute, the remote bearer is a bearer between the remote user equipment and the relay user equipment, and there are X remote bearers with different attributes between the relay user equipment and the remote user equipment. , the X carriers are different;

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, in a fourth possible implementation manner of the seventh aspect, if the relay user equipment needs to be forwarded to one or more of the remote user equipments Data, the allocation unit is specifically configured to: the radio bearer allocated for the relay data is Y bearers in the bearer between the relay user equipment and the base station; the Y bearers are according to the Determining the number of remote user devices, where Y is the number of remote user devices, and the Y bearers are different;

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, in the fifth possible implementation manner of the seventh aspect, if the relay user equipment needs to be one or The plurality of the remote user equipments forward the data, the allocation unit is configured to: the radio bearer allocated for the relay data is the Q bearers in the bearer between the relay user equipment and the base station; The Q bearers are determined according to the number of remote bearers between the one or more remote user equipments and the relay user equipment, and the Q is the one or more remote user equipments. The number of remote bearers with the relay user equipment;

With reference to the seventh aspect, or any one of the second to fifth possible implementation manners of the seventh aspect, in a sixth possible implementation manner of the seventh aspect, the logical channel group is the first Any one of the corresponding N logical channel groups in the BSR; or the logical channel group is different from the N logical channel groups.

With reference to the seventh aspect, or any one of the second to fifth possible implementation manners of the seventh aspect, in a seventh possible implementation manner of the seventh aspect, the logical channel is the first BSR Any one of the corresponding T logical channels; or the logical channel is different from the T logical channels.

In an eighth aspect, a base station is disclosed, including:

a receiving unit, configured to receive a first buffer status report reported by the first user equipment, where the first buffer status report is used to indicate a size of the first data, and logical channel group information corresponding to the first data; The first data is data transmitted between the first user equipment and the second user equipment, where the first user equipment and the second user equipment are not in a group;

An allocating unit, configured to allocate a radio resource to the first data, where the radio resource is used for data transmission between the first user equipment and the second user equipment;

And a sending unit, configured to send the resource configuration information to the first user equipment, where the resource configuration information is used to indicate that the base station reports the radio resource allocated for the first data according to the first buffer status.

With reference to the eighth aspect, in a first possible implementation manner of the eighth aspect, The first buffer status report includes a size of the first data, and an identifier of the Z logical channel groups corresponding to the first data;

With the first possible implementation of the eighth aspect, in a second possible implementation manner of the eighth aspect, the receiving unit is further configured to receive, by the first user equipment, logical channel group allocation information The logical channel group allocation information carries an index value of the Z logical channel groups.

With reference to the eighth aspect, or the first possible implementation manner of the eighth aspect, in a third possible implementation manner of the eighth aspect, the MAC CE of the first buffer status report is a third MAC CE; The third MAC CE is different from the MAC CE of the third BSR.

DRAWINGS

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

1 is a schematic diagram of a conventional D2D communication;

2 is a schematic diagram of relaying data of a user equipment provided by the present invention;

3 is a schematic diagram of a frame structure of a BSR according to Embodiment 1 of the present invention;

FIG. 4 is a schematic flowchart of a method for requesting link resources according to Embodiment 1 of the present invention; Figure

FIG. 5 is a schematic diagram of bearer allocation according to Embodiment 1 of the present invention; FIG.

FIG. 6 is a schematic diagram of another bearer allocation according to Embodiment 1 of the present invention; FIG.

FIG. 7 is a schematic diagram of another bearer allocation according to Embodiment 1 of the present invention; FIG.

FIG. 8 is a schematic diagram of another bearer allocation according to Embodiment 1 of the present invention; FIG.

FIG. 9 is a schematic flowchart of a method for requesting a link resource according to Embodiment 2 of the present invention;

10 is a structural block diagram of a relay user equipment according to Embodiment 3 of the present invention;

11 is a structural block diagram of a base station according to Embodiment 4 of the present invention;

FIG. 12 is a structural block diagram of a first user equipment according to Embodiment 5 of the present invention;

13 is a structural block diagram of a base station according to Embodiment 6 of the present invention;

FIG. 14 is a schematic structural diagram of hardware according to an embodiment of the present invention.

detailed description

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

LTE R12 (Long-Term Evolution Release 12) introduces D2D technology, that is, UEs under the base station can communicate with each other or under the management of an eNB (Evolved Base Station), but the UE can only communicate with UEs belonging to the same group. The UEs of the police group communicate with each other, and if UE1 belongs to the visitor group at the same time, UE1 also communicates with the UE of the visitor group. As shown in FIG. 2, the UE (the UE1 in FIG. 2) in the LTE R13 can communicate not only with the same group of UEs but also with UEs that do not belong to the same group. In addition, UEs outside the coverage of the eNB may also relay data to the eNB using UEs that are within the coverage of the eNB, or the eNB may relay data to the UE outside the coverage by the UE within the coverage.

In the LTE network, in order to ensure that the eNB can allocate data to the UE for data transmission, the UE needs to request an uplink resource from the eNB, and the universal request method is that the UE sends the BSR. Information is given to the eNB. The eNB allocates resources to each logical channel group according to the data size indicated by the BSR. Specifically, the UE reports the BSR to the eNB, where the BSR includes the cache state information of the D2D link related to the UE, that is, the size of the data to be transmitted on each link. The eNB allocates appropriate resources to the respective D2D links associated with UE1. For example, the cache status information is high (the indicated data in the BSR is larger), indicating that the UE side has more data to be transmitted, and the eNB needs to allocate more write resources to the UE, and conversely allocates less resources to the UE.

The format of the BSR is shown in Figure 3. The LCID of the MAC frame header indicates that the subsequent MAC CE is related to the BSR. For example, the second part of the frame header is 1001, and the second part representing the frame data part is a BSR. In addition, in the content related to the BSR, the group index (ie, the group identifier) is used to represent the flag of the UE that reports the BSR to participate in the D2D communication group. It also includes a buffer size of the transmitted data and an identification (LCGID) of the logical channel group determined based on the traffic characteristics of the data.

The current BSR can only be used for the UE to request D2D link resources, and cannot request link resources for data transmission between the UE and the general UE (UEs in different groups), and cannot relay the general UE data to the base station for the UE. To request link resources. The present invention is directed to a method for requesting a link resource, which can request a link resource for a UE to relay data of a remote UE to an eNB, or for data transmission between a UE and a UE belonging to a different group.

Example 1:

The present invention provides a method for requesting a link resource. As shown in FIG. 4, the method includes the following steps:

101. The relay user equipment establishes a connection with the remote user equipment.

Referring to FIG. 2, UE1 is the relay user equipment, and UE3 is the remote user equipment. That is, the relay user equipment is in the coverage of the base station, the remote user equipment is outside the coverage of the base station, and the relay user equipment and the remote user equipment do not belong to the same group. Certainly, the relay user equipment may relay data of multiple remote user equipments to the base station, such that the relay user equipment needs to establish a connection with each remote user equipment that needs to relay data.

Here, the relay user equipment can obtain the remote user equipment from the remote user equipment. The service characteristic corresponding to the data that is relayed to the base station by the relay user equipment, that is, the QoS information of the data.

102. The relay user equipment sends a connection request to the base station, instructing the base station that the relay user equipment is to transmit data to the base station.

The data includes relay data that the remote user equipment needs to transmit to the base station by using the relay user equipment. In addition, the connection request may further carry a service characteristic of the remote user equipment, such as: Qos.

103. The base station receives the connection request, and allocates a radio bearer to the relay data.

104. The base station sends first configuration information to the user equipment.

The first configuration information is used to indicate a radio bearer allocated by the base station for the relay data and a logical channel of the radio bearer. The identifier of the radio bearer may be an ID of the radio bearer, and the identifier information of the logical channel of the radio bearer may be an LCGID.

105. The relay user equipment receives the first configuration information sent by the base station, generates a report buffer status report, and reports a buffer status report to the base station according to the first configuration information.

The buffer status report is used to indicate a size of the relay data and a logical channel and/or a logical channel group corresponding to the relay data.

In fact, the relay user equipment relays the user equipment, according to the first configuration information, the radio bearer allocated by the base station for the relay data and the logical channel of the radio bearer, and selects a logical channel group and according to the service characteristics of the relay data. And a logical channel, after which the selected logical channel and/or logical channel group and the size of the relay data are reported to the base station through the buffer status report, so that the base station allocates radio resources for the relay data.

In addition, the MAC CE of the buffer status report is the first MAC CE, where the first MAC CE is used to indicate the first BSR, and the first BSR is used by the relay user equipment to forward the relay data. Requesting link resources, and for the relay user equipment to request link resources for data transmission between the relay user equipment and the base station. That is, the MAC CE of the buffer status report may be the same as the MAC CE of the existing BSR (that is, the first BSR according to the present invention), that is, the MAC CE of the buffer status report needs to be It should be noted that the MAC CE is an identifier in the packet header, which is used to indicate what data is specifically in the data portion of the packet. For example, the fourth MAC CE of the packet header is 1001, and the fourth representing the data portion is the BSR.

106. The base station receives the buffer status report, and allocates a radio resource to the relay data according to the buffer status report.

107. The base station sends second configuration information to the relay user equipment.

The second configuration information carries information that the base station reports the radio resource allocated to the relay user equipment according to the report buffer status.

108. The relay user equipment sends the relay data to the base station by using a radio resource allocated by the base station to the relay user equipment.

It should be noted that the bearer is a high layer, and the logical channel is a data processing channel carried in the MAC layer, that is, one bearer corresponds to one logical channel. The logical channel group includes multiple logical channels. Wireless resources are wireless time-frequency resources.

When the relay user equipment needs to forward data for one or more of the remote user equipments, the foregoing step 103 is described in detail with reference to FIG. 5 to FIG.

The radio bearer allocated by the base station for the relay data is one of the bearers between the relay user equipment and the base station.

For example, referring to FIG. 5, when the relay user equipment needs to forward data to the base station for UE1 and UE2, the base station allocates relay data of UE1 and UE2 (that is, data that needs to be relayed to the base station by the relay user equipment). A radio bearer (a bearer between a base station and a relay user equipment).

That is, the relay user turns the one or more remote user equipments to the base station. When sending data, the shared one is a bearer. And this bearer can be a bearer at the radio bearer or core network level.

Here, the logical channel group includes a plurality of logical channels with the same bearer service. After the base station allocates a logical channel group to the relay data, the base station needs to indicate the priority of each logical channel in the logical channel group of the relay user equipment, so as to relay. The user equipment selects a suitable logical channel.

2. The radio bearer allocated by the base station for the relay data is X bearers in the bearer between the relay user equipment and the base station. The X bearers are determined according to attributes of the remote bearer.

The remote bearer is a bearer between the remote user equipment and the relay user equipment, and there are X remote bearers with different attributes between the relay user equipment and the remote user equipment, where the X The bearers are all different.

For example, referring to FIG. 6, the relay user equipment needs to forward data to the base station for UE1 and UE2, and UE1 and UE2 respectively correspond to RB1 and RB2, and RB1 and RB2 are two bearers with different attributes, so the base station is UE1 and UE2. The relay data is allocated two radio bearers, which correspond to RB1 and RB2, respectively.

The radio bearer allocated by the base station for the relay data is Y bearers in the bearer between the relay user equipment and the base station; the Y bearers are determined according to the number of the remote user equipment, The Y is the number of the remote user equipment, and the Y bearers are all different.

That is, when the relay user equipment forwards data to the base station for the one or more remote user equipments, a bearer is allocated for each remote user equipment data.

For example, referring to FIG. 7, if the relay user equipment needs to be UE1 and UE2 The base station forwards data, and there are two remote user equipments. Therefore, the base station allocates two radio bearers for the relay data of UE1 and UE2, and respectively corresponds to the data of UE1 and UE2.

4. The radio bearer allocated by the base station for the relay data is Q bearers in the bearer between the relay user equipment and the base station. The Q bearers are determined according to the number of remote bearers between the one or more remote user equipments and the relay user equipment, and the Q is the one or more remote user equipments. The number of remote bearers with the relay user equipment.

For example, referring to FIG. 8, the relay user equipment needs to forward data to the base station for UE1 and UE2, and UE1 and UE2 respectively correspond to RB1 and RB2, and RB1 and RB2 are two bearers with different attributes, so the base station is UE1 and UE2. The relay data is allocated two radio bearers, which correspond to RB1 and RB2, respectively.

It should be noted that the logical channel allocated by the base station for the relay data may be an existing BSR (ie, a logical channel corresponding to data transmission between the base station and the UE and a data transmission request link resource between the UE and the same group of UEs). A logical channel group may be newly set for the relay data, that is, the logical channel group is any one of N logical channel groups corresponding to the first BSR; or the logical channel group and The N logical channel groups are all different.

The method for requesting link resources provided by the present invention, the relay user equipment sends a connection request to the base station for the remote user equipment, and the base station allocates a corresponding bearer and a logical channel group for the relay data. The relay user equipment reports a buffer status report to the base station according to the bearer allocated by the base station, so that the base station allocates radio resources for the relay data. In the prior art, the BSR only applies The UE requests the D2D link resource, that is, the UE requests the link resource for itself and the intra-group UE. Alternatively, the UE can only use the BSR to request link resources for data transmission between itself and the eNB. The UE cannot request a link resource for relaying data of the remote UE to the base station to the base station. The present invention is capable of reporting a buffer status report to a base station, requesting a link resource for the UE, and relaying data of the remote UE to the eNB.

Example 2:

The embodiment of the present invention further provides a method for requesting a link resource. As shown in FIG. 9, the method includes the following steps:

201. The first user equipment reports the first cache report to the base station to report the first cache status.

The first cache report first cache status report is used to indicate the size of the first data, and the logical channel group information corresponding to the first data; the first user equipment is not in the second user equipment In a group. In the embodiment of the present invention, the logical channel group is actually a logical channel belonging to a certain D2D group.

In addition, the first buffer status report includes a size of the first data, and an identifier of Z logical channel groups corresponding to the first data. That is, the first user equipment determines a corresponding logical channel group according to the service characteristic of the first data, and reports the size of the first data and the identifier of the determined logical channel group to the base station.

The logical channel group corresponding to the first data may be one or more of the logical channel groups corresponding to the existing BSR (that is, the third BSR). Therefore, the first cache status report further includes: Identification information of the N logical channel groups; the N logical channel groups are logical channel groups other than the Zth logical channel group among the M logical channel groups corresponding to the third BSR; The third BSR is used by the first user equipment as a data transmission request link resource between the first user equipment and the third user equipment; the third user equipment and the first user equipment Belong the same Group. That is, the existing BSR can request link resources for data transmission between the UE and the same group of UEs. The first cache reports that the MAC CE of the first buffer status report is a third MAC CE; and the third MAC CE is different from the MAC CE of the third BSR. The third BSR is further configured to request a link resource for the relay data, where the relay data is data that the remote user equipment needs to forward to the base station by using the first user equipment.

202. The base station receives the first cache status report reported by the first user equipment.

203. The base station allocates a radio resource for the first data.

The radio resource is used for data transmission between the first user equipment and the second user equipment.

204. The first user equipment performs data transmission with the second user equipment by using the radio resource allocated by the base station for the first data.

Additionally, after step 205, step 206 can also be included.

206. The first user equipment reports logical channel group allocation information to the base station; and the logical channel group allocation information carries an index value of the Z logical channel groups.

The method for requesting a link resource provided by the present invention, the first user equipment reports a buffer status report to the base station for the second user equipment (a different group from the first user equipment), so that the base station allocates radio resources for data transmission between the two. In the prior art, the BSR is only applicable to the UE requesting the D2D link resource, that is, the UE requests the link resource for itself and the intra-group UE. Alternatively, the UE can only use the BSR to request link resources for data transmission between itself and the eNB. The UE cannot request a link resource for relaying data of the remote UE to the base station to the base station. In the present invention, the buffer status report can be reported to the base station, and the link resource is requested for the UE for data transmission between the UE and the UEs belonging to different groups.

Example 3:

The embodiment of the present invention provides a relay user equipment. As shown in FIG. 10, the relay user equipment includes: a sending unit 301, a receiving unit 302, and a generating unit 303.

The sending unit 301 is configured to send a connection request to the base station, where the connection request is used to indicate that the relay user equipment is to transmit data to the base station, where the data includes a remote user equipment that needs to be transmitted by the relay user equipment. The relay data of the base station; the relay user equipment and the remote user equipment do not belong to the same group.

The receiving unit 302 is configured to receive first configuration information that is sent by the base station, where the first configuration information is used to indicate a radio bearer allocated by the base station for the relay data, and a logical channel group of the radio bearer.

a generating unit 303, configured to generate a buffer status report according to the first configuration information, and report the buffer status report to the base station; the buffer status report is used to indicate a size of the relay data and the relay The logical channel and/or logical channel group corresponding to the data.

The sending unit 301 is further configured to report the buffer status report to the base station.

The receiving unit 302 is further configured to receive second configuration information that is sent by the base station, where the second configuration information carries information about the radio resource allocated by the base station to the relay user equipment according to the report buffer status report. .

The sending unit 303 is further configured to send the relay data to the base station by using a radio resource allocated by the base station to the relay user equipment.

It should be noted that the MAC CE of the buffer status report is the first MAC CE, the first MAC CE is used to indicate the first BSR, and the first BSR is used by the relay user equipment to forward the middle Following the data request link resource, and for the relay user equipment to request a link resource for data transmission between the relay user equipment and the base station;

Or the MAC CE of the buffer status report is a second MAC CE identifier; the second MAC CE is different from the first MAC CE, and the second MAC CE is used to refer to The second BSR is used, and the second BSR is used by the relay user equipment to request link resources for forwarding the relay data.

If the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data is one of the bearers between the relay user equipment and the base station. .

If the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data is X of the bearers between the relay user equipment and the base station. The bearer is determined according to the attribute of the remote bearer, where the remote bearer is a bearer between the remote user equipment and the relay user equipment, and the relay user equipment and the remote user There are X remote bearers with different attributes between the devices, and the X bearers are different.

If the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data is Y of the bearers between the relay user equipment and the base station. The Y bearers are determined according to the number of the remote user equipments, where Y is the number of the remote user equipments, and the Y bearers are all different.

If the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data is Q in the bearer between the relay user equipment and the base station. Carrying; the Q bearers are according to the number of remote bearers between the one or more remote user equipments and the relay user equipment Determining, the Q is a number of remote bearers between the one or more remote user equipments and the relay user equipment.

In addition, the logical channel group is any one of N logical channel groups corresponding to the first BSR; or the logical channel group and the N logical channel groups are different. The logical channel is any one of T logical channels corresponding to the first BSR; or the logical channel is different from the T logical channels.

The relay user equipment provided by the present invention sends a connection request to a base station for a remote user equipment, and the base station allocates a corresponding bearer and a logical channel group for the relay data. The relay user equipment reports a buffer status report to the base station according to the bearer allocated by the base station, so that the base station allocates radio resources for the relay data. In the prior art, the BSR is only applicable to the UE requesting the D2D link resource, that is, the UE requests the link resource for itself and the intra-group UE. Alternatively, the UE can only use the BSR to request link resources for data transmission between itself and the eNB. The UE cannot request a link resource for relaying data of the remote UE to the base station to the base station. The present invention is capable of reporting a buffer status report to a base station, requesting a link resource for the UE, and relaying data of the remote UE to the eNB.

Example 4:

An embodiment of the present invention provides a base station. As shown in FIG. 11, the base station includes: a receiving unit 401, an allocating unit 402, and a sending unit 403.

The receiving unit 401 is configured to receive a connection request sent by the relay user equipment, where the connection request is used to indicate that the relay user equipment is to transmit data to the base station, and the data includes a remote user equipment that needs to pass through the middle The data transmitted by the user equipment to the base station; the relay user equipment and the remote user equipment do not belong to the same group.

The allocating unit 402 is configured to allocate a radio bearer to the relay data, and send the first configuration information to the relay user equipment, where the first configuration information is used to indicate that the base station allocates the relay data. Radio bearer and logical signal of the radio bearer Road.

The receiving unit 401 is further configured to receive a buffer status report reported by the relay user equipment, where the buffer status report is used to indicate a size of the relay data and a logical channel and/or corresponding to the relay data. Logical channel group.

The allocating unit 402 is further configured to allocate a radio resource to the relay user equipment according to the report buffer status report.

The sending unit 403 is configured to send second configuration information to the user equipment, where the second configuration information carries information about the radio resource allocated by the base station to the relay user equipment.

The receiving unit 401 is further configured to receive the relay data that is sent by the relay user equipment by using the radio resource.

It should be noted that the MAC CE of the buffer status report is the first MAC CE, the first MAC CE is used to indicate the first BSR, and the first BSR is used by the relay user equipment to forward the middle Following the data request link resource, and for the relay user equipment to request link resources for data transmission between the relay user equipment and the base station.

If the relay user equipment needs to forward data to one or more of the remote user equipments, the allocation unit 402 is specifically configured to: the radio bearer allocated for the relay data is the relay user equipment and the One bearer in the bearer between the base stations;

If the relay user equipment needs to forward data to one or more of the remote user equipments, the allocation unit 402 is specifically configured to: the radio bearer allocated for the relay data is the relay user equipment and the Describe the X bearers in the bearers between the base stations; The X bearers are determined according to the attributes of the remote bearer, and the remote bearer is a bearer between the remote user equipment and the relay user equipment, and the relay user equipment exists between the remote user equipment and the remote user equipment. X remote bearers with different attributes, the X bearers are different;

If the relay user equipment needs to forward data to one or more of the remote user equipments, the allocation unit 402 is specifically configured to: the radio bearer allocated for the relay data is the relay user equipment and the Determining the Y bearers in the bearer between the base stations; the Y bearers are determined according to the number of the remote user equipments, where Y is the number of the remote user equipments, and the Y bearers are different;

If the relay user equipment needs to forward data to one or more of the remote user equipments, the allocation unit 402 is specifically configured to: the radio bearer allocated for the relay data is the relay user equipment and the Determining the Q bearers in the bearer between the base stations; the Q bearers are determined according to the number of remote bearers between the one or more remote user equipments and the relay user equipment, where Q is The number of remote bearers between the one or more remote user equipments and the relay user equipment;

The base station provided by the present invention receives the relay user equipment and targets the remote user equipment. The station sends a connection request, and the base station allocates a corresponding bearer and a logical channel group for the relay data. Receive a buffer status report reported by the relay user equipment, and allocate radio resources for the relay data. In the prior art, the BSR is only applicable to the UE requesting the D2D link resource, that is, the UE requests the link resource for itself and the intra-group UE. Alternatively, the UE can only use the BSR to request link resources for data transmission between itself and the eNB. The UE cannot request a link resource for relaying data of the remote UE to the base station to the base station. The present invention is capable of reporting a buffer status report to a base station, requesting a link resource for the UE, and relaying data of the remote UE to the eNB.

Example 6

The embodiment of the present invention provides a first user equipment. As shown in FIG. 12, the first user equipment includes: a sending unit 501, a receiving unit 502, and a determining unit 503.

The sending unit 501 is configured to report a first buffer status report to the base station, where the first buffer status report is used to indicate a size of the first data, and logical channel group information corresponding to the first data; The device and the second user device are not in one group.

The receiving unit 502 is configured to receive the resource configuration information that is sent by the base station, where the resource configuration information is used to indicate that the base station reports the radio resource allocated to the first data according to the first buffer status.

a determining unit 503, configured to determine, according to the resource configuration information, a radio resource allocated by the base station to the first data;

It should be noted that the first buffer status report includes a size of the first data, and an identifier of Z logical channel groups corresponding to the first data, where the first buffer status report further includes: N logical channels. The identification information of the group; the N logical channel groups are logical channel groups other than the Zth logical channel group among the M logical channel groups corresponding to the third BSR.

The sending unit 501 is further configured to report logical channel group allocation information to the base station; the logical channel group allocation information carries an index value of the Z logical channel groups.

In addition, the MAC CE of the first buffer status report is a third MAC CE, and the third MAC CE is different from the MAC CE of the third BSR.

The first user equipment provided by the present invention reports a buffer status report to the base station for the second user equipment (a different group from the first user equipment), so that the base station allocates radio resources for data transmission between the two. In the prior art, the BSR is only applicable to the UE requesting the D2D link resource, that is, the UE requests the link resource for itself and the intra-group UE. Alternatively, the UE can only use the BSR to request link resources for data transmission between itself and the eNB. The UE cannot request a link resource for relaying data of the remote UE to the base station to the base station. In the present invention, the buffer status report can be reported to the base station, and the link resource is requested for the UE for data transmission between the UE and the UEs belonging to different groups.

Example 7

The embodiment of the present invention provides a base station. As shown in FIG. 13, the base station includes: a receiving unit 601, an allocating unit 602, and a sending unit 603.

The receiving unit 601 is configured to receive a first buffer status report reported by the first user equipment, where the first buffer status report is used to indicate a size of the first data, and logical channel group information corresponding to the first data. The first data is data transmitted between the first user equipment and the second user equipment, and the first user equipment and the second user equipment are not in one group.

The allocating unit 602 is configured to allocate a radio resource for the first data, where the radio resource is used for data transmission between the first user equipment and the second user equipment.

The sending unit 603 is configured to send the resource configuration information to the first user equipment, where the resource configuration information is used to indicate that the base station reports the radio resource allocated for the first data according to the first buffer status.

It should be noted that the first buffer status report includes a size of the first data, and an identifier of Z logical channel groups corresponding to the first data.

The receiving unit 601 is further configured to receive the logical channel group allocation information reported by the first user equipment, where the logical channel group allocation information carries an index value of the Z logical channel groups.

In addition, the MAC CE of the first buffer status report is a third MAC CE; the third MAC CE is different from the MAC CE of the third BSR, wherein the third BSR is further used to request a relay data. a link resource; the relay data is data that the remote user equipment needs to forward to the base station by using the first user equipment.

The base station provided by the present invention receives a buffer status report reported by the first user equipment for the second user equipment (a different group from the first user equipment), and allocates radio resources for data transmission between the two. In the prior art, the BSR is only applicable to the UE requesting the D2D link resource, that is, the UE requests the link resource for itself and the intra-group UE. Alternatively, the UE can only use the BSR to request link resources for data transmission between itself and the eNB. The UE cannot request a link resource for relaying data of the remote UE to the base station to the base station. In the present invention, the buffer status report can be reported to the base station, and the link resource is requested for the UE for data transmission between the UE and the UEs belonging to different groups.

In addition, it should be noted that, in the embodiment of the present invention, the sending unit included in the user equipment (or the base station) may be a transmitter of the user equipment (or the base station), and the receiving unit included in the user equipment (or the base station) may be the user equipment (or Receiver of Base Station) Referring additionally to Figure 14, the transmitter can be integrated with the receiver to form a transceiver. The generating unit 303, the allocating unit 402, the determining unit 503, and the allocating unit 602 may be separately set up processors, or may be integrated in a processor of a user equipment (or base station). Now, in addition, it can also be stored in the memory of the user equipment (or base station) in the form of program code, and the function of the above encryption unit is called and executed by a certain processor of the user equipment (or base station).

The processor may be a central processing unit (English: central processing unit, abbreviated as CPU) or an application specific integrated circuit (ASIC).

A memory for storing program code and transmitting the program code to the processor, the processor executing the following instructions according to the program code. The memory may include a volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); the memory may also include non-volatile memory (English: non-volatile memory). For example, read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state drive, Abbreviation: SSD). The memory may also include a combination of the above types of memories. The processor, the memory and the transmitter are connected by a system bus and complete communication with each other.

The transmitter can be implemented by a light emitter, an electrical transmitter, a wireless transmitter, or any combination thereof. For example, the light emitter can be a small form-factor pluggable transceiver (SFP) transmitter (English: transceiver), and the enhanced small form-factor pluggable (English: enhanced small form-factor pluggable, Abbreviation: SFP+) Transmitter or 10 Gigabit small form-factor pluggable (XFP) transmitter. The electric transmitter can be an Ethernet (Ethernet) network interface controller (English: network interface controller, abbreviation: NIC). The wireless transmitter can be a wireless network interface controller (English: wireless network interface controller, abbreviation: WNIC).

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is illustrated. In practical applications, the above functions can be allocated according to needs. By different work The energy module is completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the device described above, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

The units described as separate components may or may not be physically separated, and the components displayed as units may be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a device (which may be a microcontroller, chip, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

A method for requesting a link resource, comprising:

The relay user equipment sends a connection request to the base station; the connection request is used to indicate that the relay user equipment is to transmit data to the base station, and the data includes that the remote user equipment needs to be transmitted to the Relay data of the base station; the relay user equipment and the remote user equipment do not belong to the same group;

The relay user equipment receives the first configuration information sent by the base station; the first configuration information is used to indicate a radio bearer allocated by the base station for the relay data, and a logical channel group of the radio bearer;

The relay user equipment generates a buffer status report according to the first configuration information, and reports the buffer status report to the base station, where the buffer status report is used to indicate the size of the relay data and the relay a logical channel and/or a logical channel group corresponding to the data;

The relay user equipment receives the second configuration information that is sent by the base station; the second configuration information carries information that the base station reports the radio resource allocated to the relay user equipment according to the report buffer status status;

The relay user equipment sends the relay data to the base station by using a radio resource allocated by the base station to the relay user equipment.
The method according to claim 1, wherein the MAC CE of the buffer status report is a first MAC CE; the first MAC CE is used to indicate a first BSR, and the first BSR is used in the middle And requesting, by the user equipment, a link resource for forwarding the relay data, and for the relay user equipment to request a link resource for data transmission between the relay user equipment and the base station;

Or, the MAC CE of the buffer status report is a second MAC CE identifier; the second MAC CE is different from the first MAC CE, and the second MAC CE is used to indicate a second BSR, the second BSR The relay user equipment is configured to request a link resource for forwarding the relay data.
The method according to claim 1 or 2, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, The radio bearer allocated by the relay data is one of the bearers between the relay user equipment and the base station;

The first configuration information specifically includes the identifier information of the one bearer and the identifier information of the logical channel group in which the one bearer is located, and the priority information of the logical channel corresponding to the one bearer.
The method according to claim 1 or 2, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data is the Determining X bearers in the bearer between the user equipment and the base station; the X bearers are determined according to attributes of the remote bearer, and the remote bearer is the remote user equipment and the relay user equipment There are X remote bearers with different attributes between the relay user equipment and the remote user equipment, and the X bearers are different;

The first configuration information specifically includes the identifier information of the X bearers and the identifier information of the logical channel group where the X bearers are located, and the priority information of the logical channel corresponding to the X bearers.
The method according to claim 1 or 2, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data is the Determining Y bearers in the bearer between the user equipment and the base station; the Y bearers are determined according to the number of the remote user equipment, where Y is the number of the remote user equipment, and the Y The bearers are not the same;

The first configuration information specifically includes the identifier information of the Y bearers and the identifier information of the logical channel group where the Y bearers are located, and the priority information of the logical channel corresponding to the Y bearers.
The method according to claim 1 or 2, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data is the Determining Q bearers in the bearer between the user equipment and the base station; the Q bearers are determined according to the number of remote bearers between the one or more remote user equipments and the relay user equipment The Q is a remote end between the one or more remote user equipments and the relay user equipment Number of loads;

The first configuration information includes the identifier information of the Q bearers and the identifier information of the logical channel group where the Q bearers are located, and the priority information of the logical channel corresponding to the Q bearers.
The method according to any one of claims 3-6, wherein the logical channel group is any one of N logical channel groups corresponding to the first BSR; or the logical channel group Different from the N logical channel groups.
The method according to any one of claims 3-6, wherein the logical channel is any one of T logical channels corresponding to the first BSR; or the logical channel and the logical channel The T logical channels are all different.
A method for requesting a link resource, comprising:

The first user equipment reports a first buffer status report to the base station, where the first buffer status report is used to indicate a size of the first data, and logical channel group information corresponding to the first data; the first data is Data transmitted between the first user equipment and the second user equipment, where the first user equipment and the second user equipment are not in a group;

The first device receives the resource configuration information sent by the base station; the resource configuration information is used to indicate that the base station reports the radio resource allocated to the first data according to the first buffer status;

Determining, by the first user equipment, the radio resource allocated by the base station for the first data according to the resource configuration information;

The first user equipment performs data transmission with the second user equipment by using the radio resource allocated by the base station for the first data.
The method according to claim 9, wherein the first buffer status report includes a size of the first data, and an identifier of Z logical channel groups corresponding to the first data;

The first buffer status report further includes: identification information of N logical channel groups; the N logical channel groups are the Z logical channel groups among the M logical channel groups corresponding to the third BSR a group of logical channels outside the group;

The third BSR is used by the first user equipment to be the first user. And a data transmission request link resource between the third user equipment and the third user equipment; the third user equipment and the first user equipment belong to the same group.
The method of claim 10, wherein the method further comprises:

The first user equipment reports logical channel group allocation information to the base station; the logical channel group allocation information carries an index value of the Z logical channel groups.
The method according to claim 9 or 10, wherein the MAC CE of the first buffer status report is a third MAC CE; the third MAC CE is different from the MAC CE of the third BSR,

The third BSR is further configured to request a link resource for the relay data, where the relay data is data that the remote user equipment needs to forward to the base station by using the first user equipment.
A method for requesting a link resource, comprising:

Receiving, by the base station, a connection request sent by the relay user equipment, where the connection request is used to indicate that the relay user equipment is to transmit data to the base station, and the data includes that the remote user equipment needs to be transmitted by the relay user equipment The data of the base station; the relay user equipment and the remote user equipment do not belong to the same group;

The base station allocates a radio bearer to the relay data, and sends first configuration information to the relay user equipment; the first configuration information is used to indicate a radio bearer allocated by the base station to the relay data, and a logical channel of the radio bearer;

Receiving, by the base station, a buffer status report reported by the relay user equipment, where the buffer status report is used to indicate a size of the relay data and a logical channel and/or a logical channel group corresponding to the relay data;

The base station allocates radio resources to the relay user equipment according to the report buffer status report, and sends second configuration information to the user equipment; the second configuration information carries the base station as the relay user equipment. Information about allocated wireless resources;

The base station receives the relay data that is sent by the relay user equipment by using the radio resource.
The method according to claim 13, wherein the MAC CE of the buffer status report is a first MAC CE; the first MAC CE is used to indicate the first a BSR, the first BSR is used by the relay user equipment to forward the relay data request link resource, and the relay user equipment is used as data between the relay user equipment and the base station Transmit request link resources;

Or, the MAC CE of the buffer status report is a second MAC CE identifier; the second MAC CE is different from the first MAC CE, and the second MAC CE is used to indicate a second BSR, the second BSR The relay user equipment is configured to request a link resource for forwarding the relay data.
The method of claim 13 or 14, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the base station specifically includes a radio bearer for the relay data. :

The radio bearer allocated by the base station to the relay data is one of the bearers between the relay user equipment and the base station;

The first configuration information specifically includes the identifier information of the one bearer and the identifier information of the logical channel group in which the one bearer is located, and the priority information of the logical channel corresponding to the one bearer.
The method of claim 13 or 14, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the base station specifically includes a radio bearer for the relay data. :

The radio bearer allocated by the base station to the relay data is X bearers in the bearer between the relay user equipment and the base station; the X bearers are determined according to attributes of the remote bearer, The remote bearer is a bearer between the remote user equipment and the relay user equipment, and there are X remote bearers with different attributes between the relay user equipment and the remote user equipment, and the X bearers are not the same;

The first configuration information specifically includes the identifier information of the X bearers and the identifier information of the logical channel group where the X bearers are located, and the priority information of the logical channel corresponding to the X bearers.
The method of claim 13 or 14, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the base station specifically includes a radio bearer for the relay data. :

The radio bearer allocated by the base station for the relay data is Y bearers in the bearer between the relay user equipment and the base station; the Y bearers are determined according to the number of the remote user equipment, The Y is the number of the remote user equipment, and the Y bearers are different;

The first configuration information specifically includes the identifier information of the Y bearers and the identifier information of the logical channel group where the Y bearers are located, and the priority information of the logical channel corresponding to the Y bearers.
The method of claim 13 or 14, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the base station specifically includes a radio bearer for the relay data. :

The radio bearer allocated by the base station for the relay data is Q bearers in the bearer between the relay user equipment and the base station; the Q bearers are according to the one or more remote users. Determining, by the number of remote bearers between the device and the relay user equipment, the Q is a number of remote bearers between the one or more remote user equipments and the relay user equipment;

The first configuration information includes the identifier information of the Q bearers and the identifier information of the logical channel group where the Q bearers are located, and the priority information of the logical channel corresponding to the Q bearers.
The method according to any one of claims 15 to 18, wherein the logical channel group is any one of N logical channel groups corresponding to the first BSR; or the logical channel group Different from the N logical channel groups.
The method according to any one of claims 15 to 18, wherein the logical channel is any one of T logical channels corresponding to the first BSR; or the logical channel and the logical channel The T logical channels are all different.
A method for requesting a link resource, comprising:

Receiving, by the base station, a first buffer status report reported by the first user equipment, where the first buffer status report is used to indicate a size of the first data, and logical channel group information corresponding to the first data; Data transmitted between the first user equipment and the second user equipment, where the first user equipment and the second user equipment are not in a group;

The base station allocates a radio resource for the first data, where the radio resource is used for data transmission between the first user equipment and the second user equipment;

The base station sends the resource configuration information to the first user equipment, where the resource configuration information is used to indicate that the base station reports the radio resource allocated to the first data according to the first buffer status.
The method according to claim 21, wherein the first buffer status report includes a size of the first data, and an identifier of Z logical channel groups corresponding to the first data;

The first buffer status report further includes: identification information of the N logical channel groups; the N logical channel groups are the Z logical channels in the M logical channel groups corresponding to the third BSR. a group of logical channels outside the group;

The third BSR is used by the first user equipment as a data transmission request link resource between the first user equipment and the third user equipment; the third user equipment and the first user Devices belong to the same group.
The method of claim 22, wherein the method further comprises:

The base station receives the logical channel group allocation information reported by the first user equipment; the logical channel group allocation information carries an index value of the Z logical channel groups.
The method according to claim 21 or 22, wherein the MAC CE of the first buffer status report is a third MAC CE; the third MAC CE is different from the MAC CE of the third BSR,

The third BSR is further configured to request a link resource for the relay data, where the relay data is data that the remote user equipment needs to forward to the base station by using the first user equipment.
A relay user equipment, comprising:

a sending unit, configured to send a connection request to the base station, where the connection request is used to indicate that the relay user equipment is to transmit data to the base station, where the data includes a remote user equipment that needs to be transmitted to the Decoding data of the base station; the relay user equipment and the remote user equipment do not belong to the same group;

a receiving unit, configured to receive first configuration information that is sent by the base station, where the first configuration information is used to indicate a radio bearer allocated by the base station for the relay data, and a logical channel group of the radio bearer;

a generating unit, configured to generate a buffer status report according to the first configuration information, and report the buffer status report to the base station; the buffer status report is used to indicate a size of the relay data and the relay data Corresponding logical channel and/or logical channel group;

The sending unit is further configured to report the buffer status report to the base station;

The receiving unit is further configured to receive second configuration information that is sent by the base station, where the second configuration information carries information that the base station reports the radio resource allocated to the relay user equipment according to the report buffer status.

The sending unit is further configured to send the relay data to the base station by using a radio resource allocated by the base station to the relay user equipment.
The relay user equipment according to claim 25, wherein the MAC CE of the buffer status report is a first MAC CE; the first MAC CE is used to indicate a first BSR, and the first BSR is used by The relay user equipment requests a link resource for forwarding the relay data, and is used by the relay user equipment to request a link resource for data transmission between the relay user equipment and the base station;

Or, the MAC CE of the buffer status report is a second MAC CE identifier; the second MAC CE is different from the first MAC CE, and the second MAC CE is used to indicate a second BSR, the second BSR The relay user equipment is configured to request a link resource for forwarding the relay data.
The relay user equipment according to claim 25 or 26, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data And carrying one of the bearers between the relay user equipment and the base station;

The first configuration information specifically includes the identifier information of the one bearer and the identifier information of the logical channel group in which the one bearer is located, and the priority information of the logical channel corresponding to the one bearer.
A relay user equipment according to claim 25 or 26, characterized in that If the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data is X of the bearers between the relay user equipment and the base station. The bearer is determined according to the attribute of the remote bearer, where the remote bearer is a bearer between the remote user equipment and the relay user equipment, and the relay user equipment and the remote user There are X remote bearers with different attributes between the devices, and the X bearers are different.

The first configuration information specifically includes the identifier information of the X bearers and the identifier information of the logical channel group where the X bearers are located, and the priority information of the logical channel corresponding to the X bearers.
The relay user equipment according to claim 25 or 26, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data a Y bearer in the bearer between the relay user equipment and the base station; the Y bearers are determined according to the number of the remote user equipment, where Y is the number of the remote user equipment, The Y bearers are different;

The first configuration information specifically includes the identifier information of the Y bearers and the identifier information of the logical channel group where the Y bearers are located, and the priority information of the logical channel corresponding to the Y bearers.
The relay user equipment according to claim 25 or 26, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the radio bearer allocated for the relay data a Q bearer in the bearer between the relay user equipment and the base station; the Q bearers are according to the remote bearer between the one or more remote user equipments and the relay user equipment The number is determined by the number of remote bearers between the one or more remote user equipments and the relay user equipment;

The first configuration information includes the identifier information of the Q bearers and the identifier information of the logical channel group where the Q bearers are located, and the priority information of the logical channel corresponding to the Q bearers.
A relay user equipment according to any one of claims 27-30, characterized in The logical channel group is any one of the N logical channel groups corresponding to the first BSR; or the logical channel group is different from the N logical channel groups.
The relay user equipment according to any one of claims 27 to 30, wherein the logical channel is any one of T logical channels corresponding to the first BSR; or the logical channel Different from the T logical channels.
A first user equipment, comprising:

a sending unit, configured to report a first buffer status report to the base station, where the first buffer status report is used to indicate a size of the first data, and logical channel group information corresponding to the first data; the first user equipment Not in the same group as the second user equipment;

a receiving unit, configured to receive resource configuration information that is sent by the base station, where the resource configuration information is used to indicate that the base station reports a radio resource that is allocated to the first data according to the first buffer status;

a determining unit, configured to determine, according to the resource configuration information, a radio resource allocated by the base station to the first data;

The sending unit is further configured to perform data transmission with the second user equipment by using the radio resource allocated by the base station for the first data.
The first user equipment according to claim 33, wherein the first buffer status report includes a size of the first data, and an identifier of Z logical channel groups corresponding to the first data;

The first buffer status report further includes: identification information of N logical channel groups; the N logical channel groups are the Z logical channel groups among the M logical channel groups corresponding to the third BSR a group of logical channels outside the group;

The third BSR is used by the first user equipment as a data transmission request link resource between the first user equipment and the third user equipment; the third user equipment and the first user Devices belong to the same group.
The first user equipment according to claim 34, wherein the sending unit is further configured to report logical channel group allocation information to the base station; and the logical channel group allocation information carries the Z logical channels. The index value of the group.
A first user equipment according to claim 33 or 34, wherein The MAC CE of the first buffer status report is a third MAC CE; the third MAC CE is different from the MAC CE of the third BSR.

The third BSR is further configured to request a link resource for the relay data, where the relay data is data that the remote user equipment needs to forward to the base station by using the first user equipment.
A base station, comprising:

a receiving unit, configured to receive a connection request sent by the relay user equipment, where the connection request is used to indicate that the relay user equipment is to transmit data to the base station, and the data includes a remote user equipment that needs to pass the relay Data transmitted by the user equipment to the base station; the relay user equipment and the remote user equipment do not belong to the same group;

An allocating unit, configured to allocate a radio bearer to the relay data, and send first configuration information to the relay user equipment, where the first configuration information is used to indicate that the base station allocates radio for the relay data Carrying and logical channels of the radio bearers;

The receiving unit is further configured to receive a buffer status report reported by the relay user equipment, where the buffer status report is used to indicate a size of the relay data and a logical channel and/or logic corresponding to the relay data. Channel group

The allocating unit is further configured to allocate a radio resource to the relay user equipment according to the report buffer status report;

a sending unit, configured to send second configuration information to the user equipment, where the second configuration information carries information about a radio resource allocated by the base station to the relay user equipment;

The receiving unit is further configured to receive the relay data that is sent by the relay user equipment by using the radio resource.
The base station according to claim 37, wherein the MAC CE of the buffer status report is a first MAC CE; the first MAC CE is used to indicate a first BSR, and the first BSR is used in the middle And requesting, by the user equipment, a link resource for forwarding the relay data, and for the relay user equipment to request a link resource for data transmission between the relay user equipment and the base station;

Or the MAC CE of the buffer status report is a second MAC CE identifier; the second MAC CE is different from the first MAC CE, and the second MAC CE is used to refer to The second BSR is used, and the second BSR is used by the relay user equipment to request link resources for forwarding the relay data.
The base station according to claim 37 or 38, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the allocation unit is specifically configured to be the relay The radio bearer allocated by the data is one of the bearers between the relay user equipment and the base station;

The first configuration information specifically includes the identifier information of the one bearer and the identifier information of the logical channel group in which the one bearer is located, and the priority information of the logical channel corresponding to the one bearer.
The base station according to claim 37 or 38, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the allocation unit is specifically configured to be the relay The radio bearer of the data allocation is the X bearers in the bearer between the relay user equipment and the base station; the X bearers are determined according to the attributes of the remote bearer, and the remote bearer is the remote user. a bearer between the device and the relay user equipment, where there are X remote bearers with different attributes between the relay user equipment and the remote user equipment, and the X bearers are different;

The first configuration information specifically includes the identifier information of the X bearers and the identifier information of the logical channel group where the X bearers are located, and the priority information of the logical channel corresponding to the X bearers.
The base station according to claim 37 or 38, wherein if the relay user equipment needs to forward data for one or more of the remote user equipments, the allocation unit is specifically configured to be the relay The radio bearer of the data allocation is Y bearers in the bearer between the relay user equipment and the base station; the Y bearers are determined according to the number of the remote user equipment, and the Y is the remote user. The number of devices, the Y bearers are different;

The first configuration information specifically includes the identifier information of the Y bearers and the identifier information of the logical channel group where the Y bearers are located, and the priority information of the logical channel corresponding to the Y bearers.
The base station according to claim 37 or 38, wherein if said medium After the user equipment needs to forward data to one or more of the remote user equipments, the allocation unit is specifically configured to: the radio bearer allocated for the relay data is a bearer between the relay user equipment and the base station. The Q bearers are determined according to the number of remote bearers between the one or more remote user equipments and the relay user equipment, where the Q is the one or more The number of remote bearers between the remote user equipment and the relay user equipment;

The first configuration information includes the identifier information of the Q bearers and the identifier information of the logical channel group where the Q bearers are located, and the priority information of the logical channel corresponding to the Q bearers.
The base station according to any one of claims 39 to 42, wherein the logical channel group is any one of N logical channel groups corresponding to the first BSR; or the logical channel group Different from the N logical channel groups.
The base station according to any one of claims 39 to 42, wherein the logical channel is any one of T logical channels corresponding to the first BSR; or the logical channel and the logical channel The T logical channels are all different.
A base station, comprising:

a receiving unit, configured to receive a first buffer status report reported by the first user equipment, where the first buffer status report is used to indicate a size of the first data, and logical channel group information corresponding to the first data; The first data is data transmitted between the first user equipment and the second user equipment, where the first user equipment and the second user equipment are not in a group;

An allocating unit, configured to allocate a radio resource to the first data, where the radio resource is used for data transmission between the first user equipment and the second user equipment;

And a sending unit, configured to send the resource configuration information to the first user equipment, where the resource configuration information is used to indicate that the base station reports the radio resource allocated for the first data according to the first buffer status.
The base station according to claim 45, wherein the first buffer status report includes a size of the first data, and an identifier of Z logical channel groups corresponding to the first data;

The first buffer status report further includes: identification information of the N logical channel groups; the N logical channel groups are the Z logical channels in the M logical channel groups corresponding to the third BSR. a group of logical channels outside the group;

The third BSR is used by the first user equipment as a data transmission request link resource between the first user equipment and the third user equipment; the third user equipment and the first user Devices belong to the same group.
The base station according to claim 46, wherein the receiving unit is further configured to: receive logical channel group allocation information reported by the first user equipment; and the logical channel group allocation information carries the Z The index value of the logical channel group.
The base station according to claim 45 or 46, wherein the MAC CE of the first buffer status report is a third MAC CE; the third MAC CE is different from the MAC CE of the third BSR,

The third BSR is further configured to request a link resource for the relay data, where the relay data is data that the remote user equipment needs to forward to the base station by using the first user equipment.