CN107333334B - Configuration method and device for semi-persistent scheduling of sidelink - Google Patents
Configuration method and device for semi-persistent scheduling of sidelink Download PDFInfo
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- H04W72/20—Control channels or signalling for resource management
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Abstract
The invention provides a configuration method and a configuration device of secondary link semi-persistent scheduling, wherein the configuration method of the secondary link semi-persistent scheduling comprises the steps that UE receives radio resource control connection reconfiguration information sent by a base station, and the UE performs configuration of the secondary link semi-persistent scheduling according to the radio resource control connection reconfiguration information, wherein the radio resource control connection reconfiguration information comprises a secondary link communication configuration cell which comprises a semi-persistent scheduling secondary link wireless network temporary identifier and semi-persistent scheduling configuration information.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a configuration method and a configuration device for sidelink semi-persistent scheduling.
Background
V2X (Vehicle to X), namely information exchange between a Vehicle and the outside, is a key technology of a future intelligent transportation system. V2X was approved at 3GPP RAN #68 conference, mainly studying vehicle data transmission schemes based on 3GPP communication protocols. V2X communication includes V2V (Vehicle-to-Vehicle), V2I (Vehicle-to-infrastructure) and V2P (Vehicle-to-person) communication. The application of V2X will improve driving safety, reduce congestion and vehicle energy consumption, improve traffic efficiency and vehicle-mounted entertainment information, etc.
The basic Message types of V2X are divided into CAM (coordinated Awareness Message) Message and DENM (Decentralized Environmental Notification Message) Message, CAM Message is used to provide basic status information of the vehicle such as position, speed, acceleration, direction, etc. of the ITS terminal to neighbor ITS (Intelligent transportation Systems) terminals located in a single-hop communication range, and is applicable to situations such as vehicle alarm ahead, motorcycle approach indication, etc. after all vehicle direct communication nodes are activated, CAM Message is sent out according to a period determined by , DENM Message is used to notify occurrence of specific event, when a defined specific event occurs, corresponding DENM Message is triggered, before cancellation of the event, corresponding DENM Message is sent out periodically, and is applicable to situations such as emergency electronic light alarm, reverse overtaking prompt, etc. as can be seen, most of traffic in V2 service has periodic or periodic event Notification Message, and a characteristic of continuous time interval distribution of X, X is applicable to situations such as continuous data distribution of braking electronic light alarm, reverse overtaking prompt, etc.
The existing Scheduling assignment for D2D (Device-to-Device) communication uses a dynamic Sidelink grant carried on PDCCH (Physical Downlink Control Channel) and the grant is valid in PSCCH (Physical Sidelink Control Channel) periods, so that if the existing D2D mechanism is adopted for the periodic V2X service, the UE needs to repeatedly send a Sidelink BSR (Buffer Status Report) to Request the base station eNode B to allocate resources of PC5 port (interface for direct communication between vehicle and vehicle) for the periodic V2 service, if the Sidelink BSR is triggered, and there is no available (Physical Shared Channel) resource, the UE needs to first send SR (Scheduling Request) to the UE, and then to send the Downlink Control resource allocation Request message (PUSCH resource) to the PUSCH resource allocation port, so that the Uplink Control Channel overhead of the PUSCH resource allocation Request is greatly increased by PUSCH resource Scheduling Request SR (Downlink Control Channel) on PUSCH (Downlink Control Channel) 865, and then the Downlink Control Channel resource allocation Request is sent to the UE via Downlink BSR 365 Uplink BSR.
For services with periodic characteristics, how to configure semi-persistent scheduling to transmit services with periodic characteristics at the port of the PC5 is not given in the current 3GPP protocol. How to configure semi-persistent scheduling for the Sidelink communication becomes a problem to be solved urgently.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing configuration for the periodic service dynamic scheduling increases the problem of air interface overhead.
In order to solve the above technical problem, the aspect of the present invention provides a method for configuring sidelink semi-persistent scheduling, where the method for configuring sidelink semi-persistent scheduling includes:
the UE receives a radio resource control connection reconfiguration message sent by a base station;
the UE performs configuration of secondary link semi-persistent scheduling according to the radio resource control connection reconfiguration message;
the radio resource control connection reconfiguration message comprises a sidelink communication configuration cell which comprises a semi-persistent scheduling sidelink radio network temporary identifier and sidelink semi-persistent scheduling configuration information.
Optionally, the configuring, by the UE, of the sidelink semi-persistent scheduling according to the rrc connection reconfiguration message includes:
the UE configures the temporary identifier of the semi-persistent scheduling sidelink wireless network for the UE according to the temporary identifier of the semi-persistent scheduling sidelink wireless network; and the UE establishes semi-persistent scheduling configuration according to the semi-persistent scheduling configuration information and sets a semi-persistent scheduling period.
Optionally, the configuring, by the UE, of performing the secondary link semi-persistent scheduling according to the rrc connection reconfiguration message further includes:
and the UE releases the semi-persistent scheduling configuration according to the semi-persistent scheduling configuration information.
Optionally, the method for configuring sidelink semi-persistent scheduling further includes:
and the UE activates or releases the sidelink semi-persistent scheduling resource according to the downlink control information of the physical downlink control channel scrambled by the semi-persistent scheduling sidelink wireless network temporary identifier sent by the base station.
Optionally, the rrc connection reconfiguration message includes a sidelink semi-persistent scheduling configuration list, where the sidelink semi-persistent scheduling configuration list includes at least pieces of sidelink semi-persistent scheduling configuration information, and the sidelink semi-persistent scheduling configuration information includes pieces of semi-persistent scheduling radio network temporary identifiers and semi-persistent scheduling configuration information corresponding to the temporary identifiers;
correspondingly, the configuring, by the UE, of the sidelink semi-persistent scheduling according to the rrc connection reconfiguration message includes:
and for a plurality of sidelink semi-persistent scheduling resources of different periods of the UE, the UE configures corresponding semi-persistent scheduling sidelink wireless network temporary identification values and semi-persistent scheduling periods for each sidelink semi-persistent scheduling resource according to the sidelink semi-persistent scheduling configuration list.
Optionally, the method for configuring sidelink semi-persistent scheduling further includes:
UE activates or releases the secondary link semi-persistent scheduling resource according to the downlink control information of the physical downlink control channel scrambled by the semi-persistent scheduling secondary link wireless network temporary identifier sent by the base station;
the downlink control information comprises a semi-persistent scheduling sidelink wireless network temporary identifier; the activated or released sidelink semi-persistent scheduling resource corresponds to the persistent scheduling sidelink radio network temporary identifier.
Optionally, the rrc connection reconfiguration message includes a sidelink semi-persistent scheduling configuration information element, where the sidelink semi-persistent scheduling configuration information element includes semi-persistent scheduling sidelink radio network temporary identifications and a sidelink semi-persistent scheduling configuration list, and the sidelink semi-persistent scheduling configuration list includes at least configuration indexes and semi-persistent scheduling configuration information corresponding to the configuration indexes;
correspondingly, the configuring, by the UE, of the sidelink semi-persistent scheduling according to the rrc connection reconfiguration message includes:
for a plurality of sidelink semi-persistent scheduling resources of different periods of the UE, the UE configures a semi-persistent scheduling sidelink radio network temporary identifier for the UE according to the semi-persistent scheduling sidelink radio network temporary identifier; and configuring corresponding configuration index values and semi-persistent scheduling periods for each sub-link semi-persistent scheduling resource of the UE according to the sub-link semi-persistent scheduling configuration list.
Optionally, the method for configuring sidelink semi-persistent scheduling further includes:
the UE activates or releases the secondary link semi-persistent scheduling resource according to the downlink control information of the physical downlink control channel scrambled by the semi-persistent scheduling secondary link wireless network temporary identifier sent by the base station; wherein the downlink control information comprises an indication field associated with a configuration index; the activated or released sidelink semi-persistent scheduling resource corresponds to the configuration index.
Further , if the indication field associated with the configuration index included in the downlink control information is defined in the form of bitmap, it and the configuration index in the configuration of sidelink semi-persistent scheduling are mapped to according to the sequence , and the release of multiple sidelink semi-persistent scheduling resources can be indicated by the form of bitmap, so that the release of multiple sidelink semi-persistent scheduling resources can be indicated by downlink control information, effectively saving the overhead of PDCCH.
In another aspect, the present invention further provides a sidelink semi-persistent scheduling configuration device, including:
a connection reconfiguration information receiving unit, configured to receive a radio resource control connection reconfiguration message sent by the base station;
a semi-persistent scheduling configuration unit, configured to perform configuration of sub-link semi-persistent scheduling according to the radio resource control connection reconfiguration message;
wherein the RRC connection reconfiguration message includes a sidelink communication configuration cell including a semi-persistent scheduling sidelink RNC (radio network temporary identifier) and semi-persistent scheduling configuration information.
Optionally, the semi-persistent scheduling configuration unit is further configured to:
configuring a semi-persistent scheduling secondary link wireless network temporary identifier for the UE according to the semi-persistent scheduling secondary link wireless network temporary identifier; and establishing semi-persistent scheduling configuration according to the semi-persistent scheduling configuration information, and setting a semi-persistent scheduling period.
The method and the device for configuring the semi-persistent scheduling of the sidelink provided by the invention have the advantages that for services with periodic characteristics, the semi-persistent scheduling sidelink wireless network temporary identifier and the semi-persistent scheduling configuration information are added in the sidelink communication configuration cell, so that a semi-persistent scheduling mode is adopted to allocate PC5 port resources to the UE, the air interface overhead is reduced, and the overhead of PDCCH control signaling is reduced.
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 description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flow chart illustrating a configuration method of sidelink semi-persistent scheduling according to embodiments of the present invention;
fig. 2 is a schematic structural diagram of a configuration apparatus for sidelink semi-persistent scheduling according to embodiments of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete description of the technical solutions of the embodiments of the present invention will be given below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are partial embodiments of of the present invention, rather than all embodiments.
Fig. 1 is a flowchart illustrating a configuration method of sidelink semi-persistent scheduling according to embodiments of the present invention, as shown in fig. 1, the configuration method of sidelink semi-persistent scheduling according to this embodiment includes:
s11: the UE receives a radio resource control connection reconfiguration message (RRCConnectionReconfiguration) sent by a base station;
s12: the UE performs configuration of secondary link semi-persistent scheduling according to the radio resource control connection reconfiguration message (RRCConnectionReconfiguration);
wherein the radio resource control connection reconfiguration message (RRCConnectionReconfiguration) includes a secondary link communication configuration cell (SL-CommConfig) including a SL Semi-Persistent Scheduling secondary link radio network temporary identity (Sidelink Semi-Persistent Scheduling Sidelink rnti) and SL Semi-Persistent Scheduling configuration information (sps-ConfigSL).
In the configuration method for sidelink semi-persistent scheduling of this embodiment, for a service with a periodic characteristic, by adding an SL semi-persistent scheduling sidelink radio network temporary identifier and SL semi-persistent scheduling configuration information in a sidelink communication configuration cell, a semi-persistent scheduling manner is adopted to allocate PC5 port resources to a UE, thereby reducing air interface overhead and reducing PDCCH control signaling overhead.
In optional embodiments, step S12 in fig. 1 specifically includes:
the UE configures a Semi-Persistent scheduling secondary link radio network temporary identifier (Semi-Persistent scheduling Sidelink RNTI) for the UE according to the Semi-Persistent scheduling secondary link radio network temporary identifier (Semi-Persistent scheduling RNTI); and the UE establishes semi-persistent scheduling configuration according to the semi-persistent scheduling configuration information (sps-ConfigSL) and sets a semi-persistent scheduling period. Step S12 further includes: and the UE releases the semi-persistent scheduling configuration according to the semi-persistent scheduling configuration information (sps-ConfigSL).
For V2X service with periodic characteristics, eNode B indicates the UE to activate or release Sidelink Semi-Persistent Scheduling resources through PDCCH of Semi-Persistent Scheduling RNTI mask sent times through PDCCH of Semi-Persistent Scheduling RNTI mask sent at Uu port, so that the eNode B allocates control resources and service resources for transmission of sid on PC5 port periodically for the UE, and reduces interface signaling overhead.
Further , the method for configuring sidelink semi-persistent scheduling further includes:
the UE activates or releases the Sidelink Semi-persistent scheduling resource according to the downlink control information of the physical downlink control channel scrambled by the Semi-persistent scheduling Sidelink radio network temporary identifier (SPS-SL-RNTI) sent by the base station.
For the DCI format, the present invention does not limit the DCI format, and the DCI format may be DCI format 5/extended DCI format 5, or DCI format x newly defined according to the use of V2X service, and for convenience of understanding, a specific embodiment is given below, in this embodiment, DCI format 5 is taken as an example to illustrate, the sildelink semi-persistent scheduling resource is activated through SPS SL-RNTI DCI format 5, the UE reports the buffer amount of V2X service through MAC CE, eNode B allocates sildelink semi-persistent scheduling resources to the UE according to the size of a data packet and the interval, and activates the semi-persistent scheduling resource through SPS-SL-RNTI scrambled DCI format 5, the DCI format 5 supports SPS mode:
the resource activation of the port of the semi-persistent scheduling PC5 is confirmed by a DCI format 5 scrambled by SPS-SL-RNTI.
The resource release of the semi-persistent scheduling PC5 port is confirmed by the DCI format 5 scrambled by the SPS-SL-RNTI and the setting of the special field of the DCI format 5.
DCI format 5 acknowledgement special field settings for resource release of semi-persistent scheduling PC5 are shown in table 1:
table 1 special field settings for DCI format 5
| DCI Format 5 | |
| Resource for PSCCH | Is set to be '111111' |
| Resource block allocation in SCI format domain | Is set to be all '0' |
In another alternative embodiments, the rrc connection reconfiguration message includes a sidelink semi-persistent scheduling configuration list, where the sidelink semi-persistent scheduling configuration list includes at least sidelink semi-persistent scheduling configuration information, and the sidelink semi-persistent scheduling configuration information includes semi-persistent scheduling sidelink radio network temporary identifications and semi-persistent scheduling configuration information corresponding to the temporary identifications;
correspondingly, step S12 in fig. 1 specifically includes:
and for a plurality of sidelink semi-persistent scheduling resources of different periods of the UE, the UE configures corresponding semi-persistent scheduling sidelink wireless network temporary identification values and semi-persistent scheduling periods for each sidelink semi-persistent scheduling resource according to the sidelink semi-persistent scheduling configuration list.
In this embodiment, the process of activating or releasing sidelink semi-persistent scheduling resources is as follows:
UE activates or releases the secondary link semi-persistent scheduling resource according to the downlink control information of the physical downlink control channel scrambled by the semi-persistent scheduling secondary link wireless network temporary identifier sent by the base station;
the downlink control information comprises a semi-persistent scheduling sidelink wireless network temporary identifier; the activated or released sidelink semi-persistent scheduling resource corresponds to the persistent scheduling sidelink radio network temporary identifier.
According to different service cycle intervals, corresponding secondary link semi-persistent resources are respectively configured, the corresponding secondary link semi-persistent resources comprise a temporary identifier of each service and semi-persistent scheduling configuration information corresponding to the temporary identifier, and the configuration information is given in a list form.
In another alternative embodiments, the rrc connection reconfiguration message includes a sidelink semi-persistent scheduling configuration information element, which includes semi-persistent scheduling sidelink radio network temporary identifications and a sidelink semi-persistent scheduling configuration list, and the sidelink semi-persistent scheduling configuration list includes at least semi-persistent scheduling configuration information with configuration indexes corresponding to the configuration indexes;
correspondingly, step S12 in fig. 1 specifically includes:
for a plurality of sidelink semi-persistent scheduling resources of different periods of the UE, the UE configures a semi-persistent scheduling sidelink radio network temporary identifier for the UE according to the semi-persistent scheduling sidelink radio network temporary identifier; and configuring corresponding configuration index values and semi-persistent scheduling periods for each sub-link semi-persistent scheduling resource of the UE according to the sub-link semi-persistent scheduling configuration list.
The method for configuring sidelink semi-persistent scheduling of this embodiment further includes:
the UE activates or releases the secondary link semi-persistent scheduling resource according to the downlink control information of the physical downlink control channel scrambled by the semi-persistent scheduling secondary link wireless network temporary identifier sent by the base station; wherein the downlink control information comprises an indication field associated with a configuration index; the activated or released sidelink semi-persistent scheduling resource corresponds to the configuration index.
Further , if the indication field associated with the configuration index included in the downlink control information is defined in the form of bitmap, it and the configuration index in the configuration of sidelink semi-persistent scheduling are mapped to according to the sequence , and the release of multiple sidelink semi-persistent scheduling resources can be indicated by the form of bitmap, so that the release of multiple sidelink semi-persistent scheduling resources can be indicated by downlink control information, effectively saving the overhead of PDCCH.
The radio resource control connection reconfiguration message comprises an SPS-SL-RNTI and an SL semi-persistent scheduling configuration list (SPS-ConfigSLList), wherein the SL semi-persistent scheduling configuration list comprises a configuration index and an SL semi-persistent scheduling configuration (SPS-ConfigSL). the eNode B can configure a plurality of secondary link semi-persistent schedules for a plurality of concurrent services of the UE, wherein the semi-persistent scheduling configuration of each secondary link communication corresponds to configuration index values and the SL semi-persistent scheduling configuration.
Further , there are many ways to realize the SPS configuration index value indication field format, if the SPS configuration index value indication field is defined in bitmap form, it and the configuration index in the configuration of the secondary link persistent scheduling are mapped to according to the sequence , and multiple secondary link semi-persistent scheduling resources can be indicated at the same time by bitmap form, for indicating the release of the secondary link semi-persistent scheduling resources by PDCCH, downlink control information can be used to indicate the release of multiple secondary link semi-persistent scheduling resources, so that the overhead of PDCCH can be saved.
Fig. 2 is a schematic structural diagram of a configuration apparatus of sidelink semi-persistent scheduling according to embodiments of the present invention, as shown in fig. 2, the configuration apparatus of sidelink semi-persistent scheduling according to this embodiment includes a connection reconfiguration information receiving unit 21 and a semi-persistent scheduling configuration unit 22, specifically:
a connection reconfiguration information receiving unit 21, configured to receive a radio resource control connection reconfiguration message sent by the base station;
a semi-persistent scheduling configuration unit 22, configured to perform configuration of sub-link semi-persistent scheduling according to the rrc connection reconfiguration message;
wherein the RRC connection reconfiguration message includes a sidelink communication configuration cell including a semi-persistent scheduling sidelink RNC (radio network temporary identifier) and semi-persistent scheduling configuration information.
In practical application, the connection reconfiguration information receiving unit 21 receives a radio resource control connection reconfiguration message sent by a base station, the semi-persistent scheduling configuration unit 22 performs configuration of semi-persistent scheduling of a sidelink according to the radio resource control connection reconfiguration message, and for a service with a periodic characteristic, the semi-persistent scheduling sidelink radio network temporary identifier and the semi-persistent scheduling configuration information are added in a sidelink configuration cell, so that an interface resource is allocated to the UE by adopting a semi-persistent scheduling mode, interface overhead is reduced, and overhead of a PDCCH control signaling is reduced.
In alternative embodiments, the semi-persistent scheduling configuration unit 22 further is configured to:
configuring a semi-persistent scheduling secondary link wireless network temporary identifier for the UE according to the semi-persistent scheduling secondary link wireless network temporary identifier; and establishing semi-persistent scheduling configuration according to the semi-persistent scheduling configuration information, and setting a semi-persistent scheduling period.
The apparatus of this embodiment may be used to implement the above method embodiments, and the principle and technical effect are similar, which are not described herein again.
The method and the device for configuring the semi-persistent scheduling of the sidelink provided by the invention have the advantages that for services with periodic characteristics, the semi-persistent scheduling sidelink wireless network temporary identifier and the semi-persistent scheduling configuration information are added in the sidelink communication configuration cell, so that a semi-persistent scheduling mode is adopted to allocate PC5 port resources to the UE, the air interface overhead is reduced, and the overhead of PDCCH control signaling is reduced.
The above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1, method for configuring semi-persistent scheduling of sidelink, comprising:
the UE receives a radio resource control connection reconfiguration message sent by a base station;
the UE performs configuration of secondary link semi-persistent scheduling according to the radio resource control connection reconfiguration message;
wherein the RRC connection reconfiguration message comprises a sidelink communication configuration cell, and the sidelink communication configuration cell comprises a semi-persistent scheduling (SPS) sidelink radio network temporary identifier and an SPS configuration information;
the RRC connection reconfiguration message comprises a sidelink semi-persistent scheduling configuration list, wherein the sidelink semi-persistent scheduling configuration list comprises at least pieces of sidelink semi-persistent scheduling configuration information, and the sidelink semi-persistent scheduling configuration information comprises pieces of semi-persistent scheduling radio network temporary identifications and semi-persistent scheduling configuration information corresponding to the temporary identifications;
correspondingly, the configuring, by the UE, of the sidelink semi-persistent scheduling according to the rrc connection reconfiguration message includes:
and for a plurality of sidelink semi-persistent scheduling resources of different periods of the UE, the UE configures corresponding semi-persistent scheduling sidelink wireless network temporary identification values and semi-persistent scheduling periods for each sidelink semi-persistent scheduling resource according to the sidelink semi-persistent scheduling configuration list.
2. The method of claim 1, wherein the configuring, by the UE, of the sidelink semi-persistent scheduling according to the rrc connection reconfiguration message comprises:
the UE configures the temporary identifier of the semi-persistent scheduling sidelink wireless network for the UE according to the temporary identifier of the semi-persistent scheduling sidelink wireless network; and the UE establishes semi-persistent scheduling configuration according to the semi-persistent scheduling configuration information and sets a semi-persistent scheduling period.
3. The method of claim 2, wherein the configuring, by the UE, of the sidelink semi-persistent scheduling according to the rrc connection reconfiguration message further comprises:
and the UE releases the semi-persistent scheduling configuration according to the semi-persistent scheduling configuration information.
4. The method of claim 2, further comprising:
and the UE activates or releases the sidelink semi-persistent scheduling resource according to the downlink control information of the physical downlink control channel scrambled by the semi-persistent scheduling sidelink wireless network temporary identifier sent by the base station.
5. The method of claim 1, further comprising:
UE activates or releases the secondary link semi-persistent scheduling resource according to the downlink control information of the physical downlink control channel scrambled by the semi-persistent scheduling secondary link wireless network temporary identifier sent by the base station;
the downlink control information comprises a semi-persistent scheduling sidelink wireless network temporary identifier; the activated or released sidelink semi-persistent scheduling resource corresponds to the persistent scheduling sidelink radio network temporary identifier.
6. The method of claim 1, wherein the RRC connection reconfiguration message comprises a SCK configuration information element including SRNC temporary identifications and a SCK SRNC configuration list, wherein the SCK SRNC configuration list includes at least SRNC configuration information with a corresponding configuration index;
correspondingly, the configuring, by the UE, of the sidelink semi-persistent scheduling according to the rrc connection reconfiguration message includes:
for a plurality of sidelink semi-persistent scheduling resources of different periods of the UE, the UE configures a semi-persistent scheduling sidelink radio network temporary identifier for the UE according to the semi-persistent scheduling sidelink radio network temporary identifier; and configuring corresponding configuration index values and semi-persistent scheduling periods for each sub-link semi-persistent scheduling resource of the UE according to the sub-link semi-persistent scheduling configuration list.
7. The method of claim 6, further comprising:
the UE activates or releases the secondary link semi-persistent scheduling resource according to the downlink control information of the physical downlink control channel scrambled by the semi-persistent scheduling secondary link wireless network temporary identifier sent by the base station; wherein the downlink control information comprises an indication field associated with a configuration index; the activated or released sidelink semi-persistent scheduling resource corresponds to the configuration index.
8, apparatus for configuring sidelink semi-persistent scheduling, comprising:
a connection reconfiguration information receiving unit, configured to receive a radio resource control connection reconfiguration message sent by the base station;
a semi-persistent scheduling configuration unit, configured to perform configuration of sub-link semi-persistent scheduling according to the radio resource control connection reconfiguration message;
wherein the RRC connection reconfiguration message comprises a sidelink communication configuration cell, and the sidelink communication configuration cell comprises a semi-persistent scheduling sidelink radio network temporary identifier and semi-persistent scheduling configuration information;
the RRC connection reconfiguration message comprises a sidelink semi-persistent scheduling configuration list, wherein the sidelink semi-persistent scheduling configuration list comprises at least pieces of sidelink semi-persistent scheduling configuration information, and the sidelink semi-persistent scheduling configuration information comprises pieces of semi-persistent scheduling radio network temporary identifications and semi-persistent scheduling configuration information corresponding to the temporary identifications;
correspondingly, the semi-persistent scheduling configuration unit is configured to, for a plurality of sidelink semi-persistent scheduling resources of different periods of the UE, configure, by the UE, a corresponding semi-persistent scheduling sidelink radio network temporary identifier value and a semi-persistent scheduling period for each sidelink semi-persistent scheduling resource according to the sidelink semi-persistent scheduling configuration list.
9. The apparatus for configuring semi-persistent scheduling in accordance with claim 8, wherein the semi-persistent scheduling configuration unit is further configured to:
configuring a semi-persistent scheduling secondary link wireless network temporary identifier for the UE according to the semi-persistent scheduling secondary link wireless network temporary identifier; and establishing semi-persistent scheduling configuration according to the semi-persistent scheduling configuration information, and setting a semi-persistent scheduling period.
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