CN109756936B - Stream mapping method, stream receiving method, network device and terminal - Google Patents
Stream mapping method, stream receiving method, network device and terminal Download PDFInfo
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Abstract
The embodiment of the invention provides a stream mapping method, a stream receiving method, network equipment and a terminal, wherein the stream mapping method comprises the following steps: acquiring a QoS parameter of a received QoS flow; determining a Data Radio Bearer (DRB) to which the QoS flow is mapped according to the QoS parameters, wherein the QoS parameters of the DRB are determined according to the QoS parameters of the QoS flow; mapping the QoS flow to the determined DRB. In the scheme of the invention, the QoS parameter of the DRB is determined according to the QoS parameter of the QoS flow, thereby realizing the mapping from various QoS flows to the DRB.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a stream mapping method, a stream receiving method, a network device, and a terminal.
Background
The QoS (quality of service) parameters of the bearer level include QCI, ARP, GBR, AMBR, and the like.
QCI (QoS Class Identifier) is used to control the Class of the bearer and the packet forwarding manner. The use of the QCI parameter can effectively reduce the amount of data when the QoS parameter is transmitted. A QCI is a value that includes indicators of priority, packet delay, and acceptable packet error rate, each QCI being associated with a priority, priority 1 being the highest priority level.
ARP (Allocation Priority) is used just before bearer establishment. The eNodeB uses the ARP parameter to decide which bearer can be released when the system is resource constrained.
GBR (Guaranteed Bit Rate): the bearer can guarantee the provided bit rate.
MBR (Maximum Bit Rate): the maximum bit rate that the bearer can provide may be used to limit the data transmission rate of the service. The MBR parameter is typically greater than or equal to the GBR parameter value.
AMBR (Aggregated Maximum Bit Rate) is Bearer for a set of Non-GBRs. Each of these Non-GBR bearers can potentially utilize the entire AMBR. The AMBR parameter limits the total rate that can be provided by sharing all of the bearers of this AMBR.
The mapping of QoS Flow (QoS Flow) to DRB (data bearer) is introduced at the SDAP protocol layer of 3 GPP. Each QoS Flow has a QoS index parameter.
When a plurality of QoS flows are mapped to one DRB, the correspondence between the QoS index parameter of each QoS Flow and the QoS index parameter of the DRB needs to be redefined.
At present, the SDAP (simple distributed file transfer system access protocol) protocol stack of the 5G 3GPP gives a definition for mapping a plurality of QoS flows onto one DRB, and how to define the QoS parameter mapping relationship between the QoS parameters of the DRB and all QoS flows carried by the DRB is not clearly defined.
Disclosure of Invention
The invention provides a stream mapping method, a stream receiving method, network equipment and a terminal. The QoS parameter of the DRB is determined according to the QoS parameter of the QoS flow, so that mapping from various QoS flows to the DRB is realized.
To solve the above technical problem, the embodiments of the present invention provide the following solutions:
a method of mapping a stream, comprising:
acquiring a QoS parameter of a received Qos flow;
determining a Data Radio Bearer (DRB) to which the QoS flow is mapped according to the QoS parameters, wherein the QoS parameters of the DRB are determined according to the QoS parameters of the QoS flow;
mapping the QoS flow to the determined DRB.
Wherein, according to the QoS parameter, the step of determining the data radio bearer DRB to which the QoS flow is mapped comprises:
determining an alternative DRB set according to a QoS grade identifier QCI of a received QoS flow, wherein the alternative DRB set comprises at least one DRB;
and determining the DRB to which the QoS flow is mapped in the alternative DRB set according to the Guaranteed Bit Rate (GBR) requirement of the QoS flow.
Wherein, according to the Guaranteed Bit Rate (GBR) requirement of the QoS flow, the step of determining the DRB to which the QoS flow is mapped in the alternative DRB set comprises the following steps:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, in the alternative DRB set, determining a DRB matched with the GBR of the QoS flow and the maximum bit rate MBR as a DRB to which the QoS flow with GBR requirement is mapped;
when the QoS flow is a QoS flow without GBR requirement, determining other DRBs as DRBs to which the QoS flow without GBR requirement is mapped in the alternative DRB set, wherein the other DRBs are DRBs remaining in the alternative DRB set except DRBs matched with the GBR and the MBR of the QoS flow.
When the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, the step of determining a DRB matching GBR and maximum bit rate MBR of the QoS flow in the candidate DRB set includes:
and when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, according to a first time interval sent by the QoS flow, in the alternative DRB set, if a second time interval of one DRB is greater than or equal to the first time interval, determining that the DRB is a DRB matched with the GBR and the maximum bit rate MBR of the QoS flow.
The stream mapping method further comprises the following steps:
by GBR DRB = Max { QoS flow GBR1 QoS flows GBB2 8230the QoS flow GBRn Amending the GBR of the DRB matched with the GBR of the QoS flow;
by MBR DRB = Max { QoS flow GBRmax (Sigma QoS flows) MBRi ) N, correcting MBR of DRB matched with MBR of the QoS flow;
where n is all QoS flows carried on one DRBNumber, GBR DRB GBR, MBR for QoS flow with maximum GBR among all QoS flows DRB For the largest of the average of GBR of the QoS flow with the largest GBR and the sum of MBR of all QoS flows, i takes [1,n]。
When the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, the step of determining a DRB matching GBR and maximum bit rate MBR of the QoS flow in the candidate DRB set includes:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, setting a preset GBR for each DRB and setting a preset MBR for each DRB in the alternative DRB set;
if GBR DRB －(ΣGBR i ) QoS flows Can satisfy GBR requirements of the QoS flows, and MBR DRB －(ΣMBR i ) QoS flows If the margin can meet the MBR requirement of the QoS flow, determining the DRB as the DRB matched with the GBR and the maximum bit rate MBR of the QoS flow;
wherein, GBR DRB Is a predetermined GBR of the DRB; the MBR DRB A preset MBR for the DRB;
(ΣGBR i ) QoS flows Is the sum of GBRs of i QoS flows already mapped onto the DRB;
(ΣMBR i ) QoS flows Is the sum of the MBRs of the i QoS flows that have been mapped onto the DRB.
When the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, the step of determining a DRB matching the GBR and maximum bit rate MBR of the QoS flow in the candidate DRB set includes:
one GBR is preset value for each DRB in the alternative DRB set max And an MBR max Taking value, when there is no QoS flow mapping in DRB, setting GBR DRB =0 and MBR DRB ＝0；
If (GBR) max －GBR DRB )>＝GBR QoS flows And (MBR) max -MBR DRB )>＝MBR QoS flows If so, determining the DRB as a DRB matched with the GBR and the Maximum Bit Rate (MBR) of the QoS flow;
wherein, GBR DRB GBR, MBR as DRB DRB MBR, GBR as DRB QoS flows GBR, MBR for QoS flows QoS flows MBR for QoS flows.
The stream mapping method further comprises the following steps:
by GBR DRB ＝GBR DRB +GBR QoS flows Modifying the GBR of the DRB that matches the GBR of the QoS flow and the maximum bit rate MBR;
and by MBR DRB ＝MBR DRB +MBR QoS flows Modifying the MBR of the DRB that matches the GBR and maximum bit rate MBR of the QoS flow.
When the QoS flow is a QoS flow without GBR requirement, the step of determining other DRBs as DRBs to which the QoS flow without GBR requirement is mapped in the candidate DRB set includes: when the QoS flow is a QoS flow without GBR requirement, in the alternative DRB set, if the other DRBs can bear DRBs of the average rate of the QoS flow, determining one DRB in the other DRBs as a DRB to which the QoS flow without GBR requirement is mapped;
wherein the maximum bit rate sum of the other DRBs AMBR = AMBR max －AMBR DRB And AMBR DRB = (sigma data rate) i ) QoS flows ；
And, AMBR max AMBR for the set of candidate DRBs, AMBR DRB AMBR of DRB that matches the QoS flow with GBR requirements.
Wherein determining one of the other DRBs as the DRB to which the QoS flow without GBR requirement is to be mapped comprises:
when the other DRBs comprise 1 DRB, determining the DRB as the DRB to which the QoS flow without GBR requirement is mapped; or
And when the other DRBs comprise more than 2 DRBs, randomly selecting one DRB or carrying out priority sequencing on the DRBs in the other DRBs according to the QoS class QCI, and selecting one DRB with the highest priority from the other DRBs or selecting the DRB with the largest AMBR from the other DRBs.
The stream mapping method further comprises the following steps: in the alternative DRB set, if no DRB is used for bearing the QoS flow, a new DRB is established; mapping the QoS flow to the new DRB.
Wherein, if the QoS flow is the QoS flow with GBR requirement, the DRB is the DRB with GBR requirement; otherwise, the DRB is the DRB without GBR requirement.
The stream mapping method further comprises the following steps: when the QoS flow is established, if the DRB resource of the base station can bear the QoS flow, the QoS flow is established, otherwise, the QoS flow is refused to be established according to the configuration priority ARP of the QoS flow;
when deleting the QoS flow, if the DRB resource of the base station can bear the QoS flow, the QoS flow is not deleted, otherwise, the QoS flow is deleted according to the configuration priority ARP of the QoS flow.
The stream mapping method further comprises the following steps: when QoS flow loaded on DRB is deleted, the DRB is reserved; or deleting the DRB when the DRB is not needed.
The stream mapping method further comprises the following steps:
sending GBR and MBR after DRB correction to a terminal through a Radio Resource Control (RRC) signaling or a Medium Access Control (MAC) control unit (MAC CE) signaling or a scheduling process of a physical layer;
or through a preset protocol, the network equipment calculates the QoS parameters of the DRB in the downlink direction, and the terminal calculates the QoS parameters of the DRB in the uplink direction.
The stream mapping method further comprises the following steps: and sending the QoS flow mapped to the DRB to the terminal.
An embodiment of the present invention further provides a network device, including:
a processor, configured to obtain a Qos parameter of a received Qos flow; determining a Data Radio Bearer (DRB) to which the QoS flow is mapped according to the QoS parameters, wherein the QoS parameters of the DRB are determined according to the QoS parameters of the QoS flow;
a transceiver for mapping the QoS flow onto the determined DRB.
Wherein, when determining the data radio bearer DRB to which the QoS flow is to be mapped according to the QoS parameter, the processor is specifically configured to: determining an alternative DRB set according to a QoS grade identifier QCI of a received QoS flow, wherein the alternative DRB set comprises at least one DRB;
and determining the DRB to which the QoS flow is mapped in the alternative DRB set according to the Guaranteed Bit Rate (GBR) requirement of the QoS flow.
Wherein, when the processor determines the DRB to which the QoS flow is mapped according to the guaranteed bit rate GBR requirement of the QoS flow, the processor is specifically configured to: when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, in the alternative DRB set, determining a DRB matched with GBR of the QoS flow and maximum bit rate MBR as a DRB to which the QoS flow with GBR requirement is mapped;
when the QoS flow is a QoS flow without GBR requirement, determining other DRBs to be DRBs to which the QoS flow without GBR requirement is mapped in the alternative DRB set, wherein the other DRBs are DRBs remaining in the alternative DRB set except DRBs matched with the GBR and the MBR of the QoS flow.
Wherein, when the QoS flow is a QoS flow required by a guaranteed bit rate GBR, and when a DRB matching the GBR and a maximum bit rate MBR of the QoS flow is determined in the candidate DRB set, the processor is specifically configured to: and when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, according to a first time interval sent by the QoS flow, in the alternative DRB set, if a second time interval of one DRB is greater than or equal to the first time interval, determining that the DRB is a DRB matched with the GBR and the maximum bit rate MBR of the QoS flow.
Wherein the processor is further configured to:
by GBR DRB = Max { QoS flows GBR1 QoS flows GBB2 8230the QoS flow GBRn Amending the GBR of the DRB matched with the GBR of the QoS flow;
by MBR DRB = Max { QoS flows GBRmax (Sigma QoS flows) MBRi ) N, correcting MBR of DRB matched with MBR of the QoS flow;
where n is the number of all QoS flows carried on a DRB, GBR DRB GBR, MBR for QoS flow with maximum GBR among all QoS flows DRB For the largest of the GBR of the QoS flow with the largest GBR and the average of the sum of the MBRs of all QoS flows, i takes [1,n ]]。
Wherein, when the QoS flow is a QoS flow required by a guaranteed bit rate GBR, and when a DRB matching the GBR and a maximum bit rate MBR of the QoS flow is determined in the candidate DRB set, the processor is specifically configured to: when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, setting a preset GBR for each DRB and setting a preset MBR for each DRB in the alternative DRB set;
if GBR DRB －(ΣGBR i ) QoS flows Can satisfy the GBR requirement of the QoS flow, and MBR DRB －(ΣMBR i ) QoS flows If the margin can meet the MBR requirement of the QoS flow, determining the DRB as a DRB matched with the GBR and the maximum bit rate MBR of the QoS flow;
wherein GBR DRB A predetermined GBR for the DRB; the MBR DRB Presetting MBR for the DRB;
(ΣGBR i ) QoS flows Is the sum of GBRs of i QoS flows already mapped onto DRB;
(ΣMBR i ) QoS flows Is the sum of the MBRs of the i QoS flows that have been mapped onto the DRB.
Wherein, when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, the processor determines a DRB matching GBR and maximum bit rate MBR of the QoS flow in the alternative DRB set:
one GBR is preset value for each DRB in the alternative DRB set max And an MBR max Taking value, when there is no QoS flow mapping in DRB, setting GBR DRB =0 and MBR DRB ＝0；
If (GBR) max －GBR DRB )>＝GBR QoS flows And (MBR) max -MBR DRB )>＝MBR QoS flows If so, determining the DRB as a DRB matched with the GBR and the Maximum Bit Rate (MBR) of the QoS flow;
wherein, GBR DRB GBR, MBR as DRB DRB MBR, GBR as DRB QoS flows G for QoS flowsBR，MBR QoS flows MBR for QoS flows.
Wherein the processor is further configured to: by GBR DRB ＝GBR DRB +GBR QoS flows Modifying the GBR of the DRB that matches the GBR of the QoS flow and the maximum bit rate MBR;
and by MBR DRB ＝MBR DRB +MBR QoS flows Modifying the MBR of the DRB that matches the GBR and maximum bit rate MBR of the QoS flow.
Wherein, when the QoS flow is a QoS flow without GBR requirement, and when other DRBs are determined as DRBs to which the QoS flow without GBR requirement is to be mapped in the candidate DRB set, the processor is specifically configured to:
when the QoS flow is a QoS flow without GBR requirement, in the alternative DRB set, if the other DRBs can bear the DRBs at the average rate of the QoS flow, determining one DRB in the other DRBs as a DRB to which the QoS flow without GBR requirement is mapped;
wherein the maximum bit rate sum of the other DRBs AMBR = AMBR max －AMBR DRB And AMBR DRB = (sigma data rate) i ) QoS flows ；
And, AMBR max AMBR for the set of alternative DRBs, AMBR DRB AMBR of DRB that matches the QoS flow with GBR requirements.
Wherein determining one of the other DRBs as the DRB to which the QoS flow without GBR requirement is to be mapped comprises: when the other DRBs comprise 1 DRB, determining the DRB as the DRB to which the QoS flow without GBR requirement is mapped; or when the other DRBs include more than 2 DRBs, randomly selecting one DRB or performing priority ranking on the DRBs in the other DRBs according to the QoS class QCI, and selecting one DRB with the highest priority from the other DRBs or selecting the DRB with the largest AMBR from the other DRBs.
Wherein the processor is further configured to: in the alternative DRB set, if no DRB is used for bearing the QoS flow, a new DRB is established; mapping the QoS flow to the new DRB.
Wherein, when the processor establishes a new DRB, it is specifically configured to: judging whether the QoS flow is a QoS flow with GBR requirement, if so, the DRB is the DRB with GBR requirement; otherwise, the DRB is the DRB without GBR requirement.
Wherein the processor is further configured to: when the QoS flow is established, if the DRB resource of the base station can bear the QoS flow, the QoS flow is established, otherwise, the QoS flow is refused to be established according to the configuration priority ARP of the QoS flow;
when the QoS flow is deleted, if the DRB resource of the base station can bear the QoS flow, the QoS flow is not deleted, otherwise, the QoS flow is deleted according to the configuration priority ARP of the QoS flow.
Wherein the processor is further configured to: when QoS flow loaded on DRB is deleted, the DRB is reserved; or deleting the DRB when the DRB is not needed.
Wherein, network equipment still includes: sending GBR and MBR after DRB correction to a terminal through a Radio Resource Control (RRC) signaling or a Medium Access Control (MAC) control unit (MAC CE) signaling or a scheduling process of a physical layer;
or through a preset protocol, the network equipment calculates the QoS parameters of the DRB in the downlink direction, and the terminal calculates the QoS parameters of the DRB in the uplink direction.
Wherein the transceiver is further configured to transmit the QoS flow mapped onto the DRB to the terminal.
The implementation of the present invention also provides a stream receiving method, including:
receiving a QoS flow transmitted on a Data Radio Bearer (DRB) determined by a network device, wherein the QoS parameter of the DRB is determined according to the QoS parameter of the QoS flow;
and analyzing the QoS flow.
An embodiment of the present invention further provides a terminal, including:
the system comprises a transceiver and a controller, wherein the transceiver is used for receiving a QoS flow transmitted on a Data Radio Bearer (DRB) determined by a network device, and the QoS parameter of the DRB is determined according to the QoS parameter of the QoS flow;
a processor configured to parse the QoS flow.
An embodiment of the present invention further provides a communication device, including: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described above.
Embodiments of the present invention also provide a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the method as described above.
The scheme of the invention at least comprises the following beneficial effects:
according to the scheme of the invention, the QoS parameters of the received Qos flow are acquired; determining a DRB to which the QoS flow is mapped according to the QoS parameters, wherein the QoS parameters of the DRB are determined according to the QoS parameters of the QoS flow; mapping the QoS flow to the determined DRB, and sending the QoS flow to a terminal; therefore, the mapping relation between the QoS parameters of the DRB and the QoS parameters of all the borne QoS flows is clarified, and the mapping from various QoS flows to the DRB is realized.
Drawings
FIG. 1 is a flow chart of a method of mapping streams of the present invention;
fig. 2 is a schematic diagram of determining a time domain multiplexing method of DRBs matching GBR and MBR of the QoS stream according to an embodiment of the present invention;
fig. 3 is a flowchart of a stream receiving method according to the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the embodiment of the invention, when a plurality of QoS flows need to be mapped to a DRB for bearing, the QoS parameter definition of the DRB needs to meet the QoS performance requirements of all the QoS flows mapped to the DRB.
As shown in fig. 1, an embodiment of the present invention provides a stream mapping method, including:
and step 13, mapping the QoS flow to the determined DRB.
In this embodiment, step 12 may include:
step 121, determining a candidate DRB set according to the QoS class identifier QCI of the received QoS flow, where the candidate DRB set includes at least one DRB;
specifically, the mapped DRB set is selected according to the QCI of the QoS flow: DRBi (i =0,1, \8230;, n). And determining an available alternative DRB set of the QoS flow through the QCI, and further, performing priority ordering on DRBs in the alternative DRB set.
Step 122, according to the guaranteed bit rate GBR requirement of the QoS flow, determining a DRB to which the QoS flow is mapped in the candidate DRB set.
Specifically, the step 122 may include:
step 1221, when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, determining a DRB matching the GBR and maximum bit rate MBR of the QoS flow as a DRB to which the QoS flow with GBR requirement is mapped in the candidate DRB set;
step 1222, when the QoS flow is a QoS flow without GBR requirement, determining other DRBs as DRBs to which the QoS flow without GBR requirement is mapped in the candidate DRB set, where the other DRBs are DRBs remaining in the candidate DRB set except DRBs matching with the GBR and MBR of the QoS flow.
In step 1221, when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, the method for determining a DRB that matches the GBR of the QoS flow and the maximum bit rate MBR in the candidate DRB set includes:
a) Time domain multiplexing method: and when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, according to a first time interval sent by the QoS flow, in the alternative DRB set, if a second time interval of one DRB is greater than or equal to the first time interval, determining that the DRB is a DRB matched with the GBR and the maximum bit rate MBR of the QoS flow.
Further, by GBR DRB = Max { QoS flow GBR1 QoS flows GBB2 8230and QoS flow GBRn Amending the GBR of the DRB matched with the GBR of the QoS flow;
by MBR DRB = Max { QoS flow GBRmax (Sigma QoS flows) MBRi ) N, correcting MBR of DRB matched with MBR of the QoS flow;
where n is the number of all QoS flows carried on a DRB, GBR DRB GBR, MBR for QoS flows with the largest GBR among all QoS flows DRB For the largest of the GBR of the QoS flow with the largest GBR and the average of the sum of the MBRs of all QoS flows, i takes [1,n ]]。
As shown in fig. 2, if the new QoS flow can find the empty time t suitable for its data transmission time interval, the three QoS flows that have been multiplexed are mapped onto the DRB.
B) Residual difference method: when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, setting a preset GBR for each DRB and setting a preset MBR for each DRB in the alternative DRB set;
if GBR DRB －(ΣGBR i ) QoS flows Can satisfy GBR requirements of the QoS flows, and MBR DRB －(ΣMBR i ) QoS flows If the margin can meet the MBR requirement of the QoS flow, determining the DRB as a DRB matched with the GBR and the maximum bit rate MBR of the QoS flow;
wherein, GBR DRB Is a predetermined GBR of the DRB; the MBR DRB A preset MBR for the DRB;
(ΣGBR i ) QoS flows Is the sum of GBRs of i QoS flows already mapped onto the DRB;
(ΣMBR i ) QoS flows Is the sum of the MBRs of the i QoS flows that have been mapped onto the DRB.
C) Dynamic maximum increase method: is the alternative DROne GBR for each DRB preset value in B set max And an MBR max Taking value, when there is no QoS flow mapping in DRB, setting GBR DRB =0 and MBR DRB ＝0；
If (GBR) max －GBR DRB )>＝GBR QoS flows And (MBR) max -MBR DRB )>＝MBR QoS flows If so, determining the DRB as a DRB matched with the GBR and the Maximum Bit Rate (MBR) of the QoS flow;
wherein, GBR DRB GBR, MBR as DRB DRB MBR, GBR as DRB QoS flows GBR, MBR for QoS flows QoS flows Is the MBR of the QoS flow.
Further, by GBR DRB ＝GBR DRB +GBR QoS flows Modifying the GBR of the DRB that matches the GBR and Maximum Bit Rate (MBR) of the QoS flow;
and by MBR DRB ＝MBR DRB +MBR QoS flows Modifying the MBR of the DRB that matches the GBR and maximum bit rate MBR of the QoS flow.
Up to GBR max And an MBR max Is full and cannot carry any QoS flow.
In the scheduling process of DRB, GBR is used DRB And MBR DRB GBR and MBR as the DRB.
In the step 1222, when the QoS flow is a QoS flow without GBR requirement, the step of determining other DRBs as DRBs to which the QoS flow without GBR requirement is mapped in the candidate DRB set includes:
when the QoS flow is a QoS flow without GBR requirement, in the alternative DRB set, if the other DRBs can bear the DRBs at the average rate of the QoS flow, determining one DRB in the other DRBs as a DRB to which the QoS flow without GBR requirement is mapped;
wherein the maximum bit rate sum of the other DRBs AMBR = AMBR max －AMBR DRB And AMBR DRB = (sigma data rate) i ) QoS flows ；
And, AMBR max AMBR for the set of candidate DRBs, AMBR DRB AMBR of DRB that matches the QoS flow with GBR requirements.
Wherein determining one of the other DRBs as the DRB to which the QoS flow without GBR requirement is to be mapped comprises:
when the other DRBs comprise 1 DRB, determining the DRB as the DRB to which the QoS flow without GBR requirement is mapped; or alternatively
And when the other DRBs comprise more than 2 DRBs, randomly selecting one DRB or carrying out priority sequencing on the DRBs in the other DRBs according to the QoS grade QCI, and selecting one DRB with the highest priority from the other DRBs or selecting the DRB with the largest AMBR from the other DRBs.
The above embodiment of the present invention may further include: in the alternative DRB set, if no DRB is used for bearing the QoS flow, a new DRB is established; mapping the QoS flow to the new DRB.
If the QoS flow is the QoS flow with GBR requirement, the DRB is the DRB with GBR requirement; otherwise, the DRB is the DRB without GBR requirement.
The above embodiment of the present invention may further include: when the QoS flow is established, if the DRB resource of the base station can bear the QoS flow, the QoS flow is established, otherwise, the QoS flow is refused to be established according to the configuration priority ARP of the QoS flow;
when deleting the QoS flow, if the DRB resource of the base station can bear the QoS flow, the QoS flow is not deleted, otherwise, the QoS flow is deleted according to the configuration priority ARP of the QoS flow.
Further, when the QoS flows carried on the DRB are all deleted, the DRB is retained; or deleting the DRB when the DRB is not needed.
The above embodiment of the present invention may further include: sending GBR and MBR after DRB correction to a terminal through a Radio Resource Control (RRC) signaling or a Medium Access Control (MAC) control unit (MAC CE) signaling or a scheduling process of a physical layer; or through a preset protocol, the network equipment calculates the QoS parameters of the DRB in the downlink direction, and the terminal calculates the QoS parameters of the DRB in the uplink direction.
The above embodiment of the present invention may further include: and transmitting the QoS flow mapped to the DRB to the terminal.
The above embodiments of the present invention provide a method for mapping QoS flows with GBR requirements and QoS flows without GBR requirements to DRBs; by the method, the requirement of an SDAP (simple distributed file transfer system access protocol) layer on signaling control configuration can be defined, and the function of the SDAP layer is perfected.
Corresponding to the foregoing method, an embodiment of the present invention further provides a network device, including:
a processor, configured to obtain a Qos parameter of a received Qos flow; determining a DRB to which the QoS flow is mapped according to the QoS parameters, wherein the QoS parameters of the DRB are determined according to the QoS parameters of the QoS flow;
a transceiver for mapping the QoS flow onto the determined DRB.
Wherein, when the processor determines the DRB to which the QoS flow is to be mapped according to the QoS parameter, the processor is specifically configured to:
determining a candidate DRB set according to a QoS grade identifier (QCI) of a received QoS flow, wherein the DRB set comprises at least one DRB;
and determining the DRBs to which the QoS flows are mapped in the alternative DRB set according to the Guaranteed Bit Rate (GBR) requirements of the QoS flows.
Wherein, when the processor determines the DRB to which the QoS flow is mapped according to the guaranteed bit rate GBR requirement of the QoS flow, the processor is specifically configured to:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, in the alternative DRB set, determining a DRB matched with the GBR of the QoS flow and the maximum bit rate MBR as a DRB to which the QoS flow with GBR requirement is mapped;
when the QoS flow is a QoS flow without GBR requirement, determining other DRBs as DRBs to which the QoS flow without GBR requirement is mapped in the alternative DRB set, wherein the other DRBs are DRBs remaining in the alternative DRB set except DRBs matched with the GBR and the MBR of the QoS flow.
Wherein, when the QoS flow is a QoS flow that requires a guaranteed bit rate GBR, and when a DRB that matches the GBR and a maximum bit rate MBR of the QoS flow is determined in the candidate DRB set, the processor is specifically configured to:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, according to a first time interval sent by the QoS flow, in the alternative DRB set, if a second time interval of one DRB is greater than or equal to the first time interval, determining that the DRB is a DRB matched with GBR and maximum bit rate MBR of the QoS flow.
Wherein the processor is further configured to:
by GBR DRB = Max { QoS flow GBR1 QoS flows GBB2 8230and QoS flow GBRn Amending the GBR of the DRB matched with the GBR of the QoS flow;
by MBR DRB = Max { QoS flow GBRmax (Sigma QoS flows) MBRi ) N, correcting MBR of DRB matched with MBR of the QoS flow;
where n is the number of all QoS flows carried on a DRB, GBR DRB GBR, MBR for QoS flow with maximum GBR among all QoS flows DRB For the largest of the average of GBR of the QoS flow with the largest GBR and the sum of MBR of all QoS flows, i takes [1,n]。
Wherein, when the QoS flow is a QoS flow that requires a guaranteed bit rate GBR, and when a DRB that matches the GBR and a maximum bit rate MBR of the QoS flow is determined in the candidate DRB set, the processor is specifically configured to:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, setting a preset GBR for each DRB and setting a preset MBR for each DRB in the alternative DRB set;
if GBR DRB －(ΣGBR i ) QoS flows Can satisfy the GBR requirement of the QoS flow, and MBR DRB －(ΣMBR i ) QoS flows If the margin can meet the MBR requirement of the QoS flow, determining the DRB as a DRB matched with the GBR and the maximum bit rate MBR of the QoS flow;
wherein, GBR DRB A predetermined GBR for the DRB; the MBR DRB Presetting MBR for the DRB;
(ΣGBR i ) QoS flows Is the sum of GBRs of i QoS flows already mapped onto the DRB;
(ΣMBR i ) QoS flows Is the sum of the MBRs of the i QoS flows that have been mapped onto the DRB.
Wherein, when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, the processor determines a DRB matched with GBR and maximum bit rate MBR of the QoS flow in the alternative DRB set:
presetting a GBR for each DRB in the alternative DRB set max And an MBR max Taking value, when there is no QoS flow mapping in DRB, setting GBR DRB =0 and MBR DRB ＝0；
If (GBR) max －GBR DRB )>＝GBR QoS flows And (MBR) max -MBR DRB )>＝MBR QoS flows If yes, determining the DRB as a DRB matched with the GBR and the Maximum Bit Rate (MBR) of the QoS flow;
wherein, GBR DRB GBR, MBR as DRB DRB MBR, GBR as DRB QoS flows GBR, MBR for QoS flows QoS flows MBR for QoS flows.
Wherein the processor is further configured to:
by GBR DRB ＝GBR DRB +GBR QoS flows Modifying the GBR of the DRB that matches the GBR of the QoS flow and the maximum bit rate MBR;
and by MBR DRB ＝MBR DRB +MBR QoS flows Modifying the MBR of the DRB that matches the GBR and maximum bit rate MBR of the QoS flow.
Wherein, when the QoS flow is a QoS flow without GBR requirement, and when other DRBs are determined as DRBs to which the QoS flow without GBR requirement is to be mapped in the candidate DRB set, the processor is specifically configured to:
when the QoS flow is a QoS flow without GBR requirement, in the alternative DRB set, if the other DRBs can bear the DRBs at the average rate of the QoS flow, determining one DRB in the other DRBs as a DRB to which the QoS flow without GBR requirement is mapped;
wherein the maximum bit rate sum of the other DRBs AMBR = AMBR max －AMBR DRB And AMBR DRB = (sigma data rate) i ) QoS flows ；
And, AMBR max AMBR for the set of alternative DRBs, AMBR DRB AMBR of DRB matching with QoS flow with GBR requirement.
Wherein determining one of the other DRBs as the DRB to which the QoS flow without GBR requirement is to be mapped comprises:
when the other DRBs comprise 1 DRB, determining the DRB as the DRB to which the QoS flow without GBR requirement is mapped; or
And when the other DRBs comprise more than 2 DRBs, randomly selecting one DRB or carrying out priority sequencing on the DRBs in the other DRBs according to the QoS class QCI, and selecting one DRB with the highest priority from the other DRBs or selecting the DRB with the largest AMBR from the other DRBs.
Wherein the processor is further configured to: in the alternative DRB set, if no DRB is used for bearing the QoS flow, a new DRB is established; mapping the QoS flow to the new DRB.
When the processor establishes a new DRB, the processor is specifically configured to: judging whether the QoS flow is a QoS flow with GBR requirement, if so, the DRB is the DRB with GBR requirement; otherwise, the DRB is the DRB without GBR requirement.
Wherein the processor is further configured to: when the QoS flow is established, if the DRB resource of the base station can bear the QoS flow, the QoS flow is established, otherwise, the QoS flow is refused to be established according to the configuration priority ARP of the QoS flow; when deleting the QoS flow, if the DRB resource of the base station can bear the QoS flow, the QoS flow is not deleted, otherwise, the QoS flow is deleted according to the configuration priority ARP of the QoS flow.
Wherein the processor is further configured to: when QoS flow loaded on DRB is deleted, the DRB is reserved; or deleting the DRB when the DRB is not needed.
Wherein, the network equipment still includes: sending GBR and MBR after DRB correction to a terminal through a Radio Resource Control (RRC) signaling or a Medium Access Control (MAC) control unit (MAC CE) signaling or a scheduling process of a physical layer;
or through a preset protocol, the network equipment calculates the QoS parameters of the DRB in the downlink direction, and the terminal calculates the QoS parameters of the DRB in the uplink direction.
Wherein the transceiver is further configured to transmit the QoS flow mapped onto the DRB to the terminal.
It should be noted that the embodiment of the network device is a network device corresponding to the above method embodiment, and all implementation manners in the above method embodiment are applicable to the embodiment of the network device, and the same technical effect can be achieved.
An embodiment of the present invention further provides a stream receiving method, including:
and step 22, analyzing the QoS flow.
Corresponding to the method, an embodiment of the present invention further provides a terminal, including:
the transceiver is used for receiving the QoS flow transmitted on the DRB determined by the network equipment, and the QoS parameter of the DRB is determined according to the QoS parameter of the QoS flow;
a processor configured to parse the QoS flow.
It should be noted that, the embodiments of the terminal-side flow receiving method and the terminal are methods and terminals corresponding to the flow transmitting method of the network device, and all the implementations of QoS flow mapping to corresponding DRBs are applicable to the embodiments of the terminal, and the same technical effects can be achieved.
An embodiment of the present invention further provides a communication device, including: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described in the above embodiments. The communication device may be a network device, such as a base station, or a terminal. Wherein the processor and the memory are connected through an interface or a bus.
Embodiments of the present invention also provide a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the method as described above.
The above embodiments of the present invention provide a method for mapping QoS flows with GBR requirements and QoS flows without GBR requirements to DRBs; by the method, the requirement of an SDAP (simple distributed file transfer system access protocol) layer on signaling control configuration can be defined, and the function of the SDAP layer is perfected.
While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the principles of the invention as set forth in the appended claims.
Claims (34)
1. A method for mapping a stream, comprising:
acquiring a QoS parameter of a received QoS flow;
determining a Data Radio Bearer (DRB) to which the QoS flow is mapped according to the QoS parameters, wherein the QoS parameters of the DRB are determined according to the QoS parameters of the QoS flow;
mapping the QoS flow to the determined DRB;
the step of determining the data radio bearer DRB to which the QoS flow is to be mapped according to the QoS parameter comprises:
determining an alternative DRB set according to a QoS grade identifier QCI of a received QoS flow, wherein the alternative DRB set comprises at least one DRB;
and determining the DRB to which the QoS flow is mapped in the alternative DRB set according to the Guaranteed Bit Rate (GBR) requirement of the QoS flow.
2. The flow mapping method according to claim 1, wherein the step of determining the DRB to which the QoS flow is mapped from the set of alternative DRBs according to the Guaranteed Bit Rate (GBR) requirement of the QoS flow comprises:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, in the alternative DRB set, determining a DRB matched with the GBR of the QoS flow and the maximum bit rate MBR as a DRB to which the QoS flow with GBR requirement is mapped;
when the QoS flow is a QoS flow without GBR requirement, determining other DRBs as DRBs to which the QoS flow without GBR requirement is mapped in the alternative DRB set, wherein the other DRBs are DRBs remaining in the alternative DRB set except DRBs matched with the GBR and the MBR of the QoS flow.
3. The flow mapping method according to claim 2, wherein when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, the step of determining a DRB in the candidate DRB set, which matches the GBR and maximum bit rate MBR of the QoS flow, comprises:
and when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, according to a first time interval sent by the QoS flow, in the alternative DRB set, if a second time interval of one DRB is greater than or equal to the first time interval, determining that the DRB is a DRB matched with the GBR and the maximum bit rate MBR of the QoS flow.
4. The stream mapping method according to claim 3, further comprising:
by GBR DRB = Max { QoS flow GBR1 QoS flows GBB2 8230and QoS flow GBRn Amending the GBR of the DRB matched with the GBR of the QoS flow;
by MBR DRB = Max { QoS flow GBRmax (Sigma QoS flows) MBRi ) N, correcting MBR of DRB matched with MBR of the QoS flow;
where n is the number of all QoS flows carried on a DRB, GBR DRB GBR, MBR for QoS flow with maximum GBR among all QoS flows DRB For the largest of the average of GBR of the QoS flow with the largest GBR and the sum of MBR of all QoS flows, i takes [1,n]。
5. The flow mapping method according to claim 2, wherein when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, the step of determining a DRB in the candidate DRB set, which matches the GBR and maximum bit rate MBR of the QoS flow, comprises:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, setting a preset GBR for each DRB and setting a preset MBR for each DRB in the alternative DRB set;
if GBR DRB －(ΣGBR i ) QoS flows Can satisfy the GBR requirement of the QoS flow, and MBR DRB －(ΣMBR i ) QoS flows If the margin can meet the MBR requirement of the QoS flow, determining the DRB as a DRB matched with the GBR and the maximum bit rate MBR of the QoS flow;
wherein, GBR DRB Is a predetermined GBR of the DRB; the MBR DRB A preset MBR for the DRB;
(ΣGBR i ) QoS flows Is the sum of GBRs of i QoS flows already mapped onto DRB;
(ΣMBR i ) QoS flows Is the sum of the MBRs of the i QoS flows that have been mapped onto the DRB.
6. The flow mapping method according to claim 2, wherein when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, the step of determining a DRB in the candidate DRB set, which matches the GBR and maximum bit rate MBR of the QoS flow, comprises:
one GBR is preset value for each DRB in the alternative DRB set max And an MBR max Taking value, when there is no QoS flow mapping in DRB, setting GBR DRB =0 and MBR DRB ＝0；
If (GBR) max －GBR DRB )>＝GBR QoS flows And (MBR) max -MBR DRB )>＝MBR QoS flows If so, determining the DRB as a DRB matched with the GBR and the Maximum Bit Rate (MBR) of the QoS flow;
wherein, GBR DRB GBR, MBR as DRB DRB MBR, GBR as DRB QoS flows GBR, MBR for QoS flows QoS flows MBR for QoS flows.
7. The stream mapping method according to claim 6, further comprising:
by GBR DRB ＝GBR DRB +GBR QoS flows Modifying the GBR of the DRB that matches the GBR of the QoS flow and the maximum bit rate MBR;
and by MBR DRB ＝MBR DRB +MBR QoS flows Modifying the MBR of the DRB that matches the GBR and maximum bit rate MBR of the QoS flow.
8. The flow mapping method according to claim 2, wherein when the QoS flow is a QoS flow without GBR requirement, the step of determining other DRBs as DRBs to which the QoS flow without GBR requirement is mapped in the candidate DRB set comprises:
when the QoS flow is a QoS flow without GBR requirement, in the alternative DRB set, if the other DRBs can bear the DRBs at the average rate of the QoS flow, determining one DRB in the other DRBs as a DRB to which the QoS flow without GBR requirement is mapped;
wherein the maximum bit rate sum of the other DRBs AMBR = AMBR max －AMBR DRB And AMBR DRB = (sigma data rate) i ) QoS flows ；
And, AMBR max AMBR for the set of candidate DRBs, AMBR DRB AMBR of DRB that matches the QoS flow with GBR requirements.
9. The flow mapping method of claim 8, wherein determining one of the other DRBs as the DRB to which the QoS flow without GBR requirement is mapped comprises:
when the other DRBs comprise 1 DRB, determining the DRB as the DRB to which the QoS flow without GBR requirement is mapped; or
And when the other DRBs comprise more than 2 DRBs, randomly selecting one DRB or carrying out priority sequencing on the DRBs in the other DRBs according to the QoS class QCI, and selecting one DRB with the highest priority from the other DRBs or selecting the DRB with the largest AMBR from the other DRBs.
10. The stream mapping method according to claim 1, further comprising:
in the alternative DRB set, if no DRB is used for bearing the QoS flow, a new DRB is established;
mapping the QoS flow to the new DRB.
11. The stream mapping method according to claim 10,
if the QoS flow is the QoS flow with GBR requirement, the DRB is the DRB with GBR requirement; otherwise, the DRB is the DRB without GBR requirement.
12. The stream mapping method according to claim 1, further comprising:
when the QoS flow is established, if the DRB resource of the base station can bear the QoS flow, the QoS flow is established, otherwise, the QoS flow is refused to be established according to the configuration priority ARP of the QoS flow;
when deleting the QoS flow, if the DRB resource of the base station can bear the QoS flow, the QoS flow is not deleted, otherwise, the QoS flow is deleted according to the configuration priority ARP of the QoS flow.
13. The stream mapping method according to claim 12, further comprising:
when QoS flow loaded on DRB is deleted, the DRB is reserved; or
When the DRB is not needed, the DRB is deleted.
14. The stream mapping method according to claim 4 or 7, further comprising:
sending GBR and MBR after DRB correction to a terminal through a Radio Resource Control (RRC) signaling or a Medium Access Control (MAC) control unit (MAC CE) signaling or a scheduling process of a physical layer;
or through a preset protocol, the network equipment calculates the QoS parameters of the DRB in the downlink direction, and the terminal calculates the QoS parameters of the DRB in the uplink direction.
15. The stream mapping method according to claim 1, further comprising:
and transmitting the QoS flow mapped to the DRB to the terminal.
16. A network device, comprising:
a processor for acquiring a QoS parameter of a received QoS flow; determining a Data Radio Bearer (DRB) to which the QoS flow is mapped according to the QoS parameters, wherein the QoS parameters of the DRB are determined according to the QoS parameters of the QoS flow;
a transceiver for mapping the QoS flow onto the determined DRB;
the processor, when determining the data radio bearer DRB to which the QoS flow is to be mapped according to the QoS parameter, is specifically configured to:
determining an alternative DRB set according to a QoS grade identifier QCI of a received QoS flow, wherein the alternative DRB set comprises at least one DRB;
and determining the DRB to which the QoS flow is mapped in the alternative DRB set according to the Guaranteed Bit Rate (GBR) requirement of the QoS flow.
17. The network device of claim 16, wherein the processor, when determining the DRB to which the QoS flow is mapped according to a guaranteed bit rate, GBR, requirement of the QoS flow, is specifically configured to:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, in the alternative DRB set, determining a DRB matched with the GBR of the QoS flow and the maximum bit rate MBR as a DRB to which the QoS flow with GBR requirement is mapped;
when the QoS flow is a QoS flow without GBR requirement, determining other DRBs to be DRBs to which the QoS flow without GBR requirement is mapped in the alternative DRB set, wherein the other DRBs are DRBs remaining in the alternative DRB set except DRBs matched with the GBR and the MBR of the QoS flow.
18. The network device of claim 17, wherein the processor, when determining a DRB from the set of alternative DRBs that matches GBR of the QoS flow and MBR when the QoS flow is a QoS flow with GBR guaranteed bitrate requirement, is configured to:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, according to a first time interval sent by the QoS flow, in the alternative DRB set, if a second time interval of one DRB is greater than or equal to the first time interval, determining that the DRB is a DRB matched with GBR and maximum bit rate MBR of the QoS flow.
19. The network device of claim 18, wherein the processor is further configured to:
by GBR DRB = Max { QoS flow GBR1 QoS flows GBB2 8230the QoS flow GBRn Amending the GBR of the DRB matched with the GBR of the QoS flow;
by MBR DRB = Max { QoS flows GBRmax (Sigma QoS flows) MBRi ) N, correcting MBR of DRB matched with MBR of the QoS flow;
where n is the number of all QoS flows carried on a DRB, GBR DRB GBR, MBR for QoS flows with the largest GBR among all QoS flows DRB For the largest of the GBR of the QoS flow with the largest GBR and the average of the sum of the MBRs of all QoS flows, i takes [1,n ]]。
20. The network device of claim 17, wherein the processor, when determining a DRB from the set of alternative DRBs that matches GBR of the QoS flow and MBR when the QoS flow is a QoS flow with GBR guaranteed bitrate requirement, is configured to:
when the QoS flow is a QoS flow with guaranteed bit rate GBR requirement, setting a preset GBR for each DRB and setting a preset MBR for each DRB in the alternative DRB set;
if GBR DRB －(ΣGBR i ) QoS flows Can satisfy the GBR requirement of the QoS flow, and MBR DRB －(ΣMBR i ) QoS flows If the margin can meet the MBR requirement of the QoS flow, determining the DRB as the DRB matched with the GBR and the maximum bit rate MBR of the QoS flow;
wherein GBR DRB Is a predetermined GBR of the DRB; the MBR DRB A preset MBR for the DRB;
(ΣGBR i ) QoS flows Is the sum of GBRs of i QoS flows already mapped onto DRB;
(ΣMBR i ) QoS flows Is the sum of the MBRs of the i QoS flows that have been mapped onto the DRB.
21. The network device of claim 17, wherein the processor, when determining the DRBs in the set of alternative DRBs that match the GBR and the MBR of the QoS flow when the QoS flow is a guaranteed bit rate, GBR, required QoS flow:
one GBR is preset value for each DRB in the alternative DRB set max And an MBR max Taking value, when there is no QoS flow mapping in DRB, setting GBR DRB =0 and MBR DRB ＝0；
If (GBR) max －GBR DRB )>＝GBR QoS flows And (MBR) max -MBR DRB )>＝MBR QoS flows If yes, determining the DRB as a DRB matched with the GBR and the Maximum Bit Rate (MBR) of the QoS flow;
wherein, GBR DRB GBR, MBR as DRB DRB MBR, GBR as DRB QoS flows GBR, MBR for QoS flows QoS flows MBR for QoS flows.
22. The network device of claim 21, wherein the processor is further configured to:
by GBR DRB ＝GBR DRB +GBR QoS flows For DRB matching GBR and maximum bit rate MBR of the QoS flowCorrecting the GBR of (1);
and by MBR DRB ＝MBR DRB +MBR QoS flows Modifying the MBR of the DRB that matches the GBR and maximum bit rate MBR of the QoS flow.
23. The network device of claim 17, wherein the processor, when the QoS flow is a QoS flow without GBR requirement, is specifically configured to, when other DRBs in the candidate DRB set are determined as DRBs to which QoS flows without GBR requirement are to be mapped:
when the QoS flow is a QoS flow without GBR requirement, in the alternative DRB set, if the other DRBs can bear DRBs of the average rate of the QoS flow, determining one DRB in the other DRBs as a DRB to which the QoS flow without GBR requirement is mapped;
wherein the maximum bit rate sum of the other DRBs AMBR = AMBR max －AMBR DRB And AMBR DRB = (sigma data rate) i ) QoS flows ；
And, AMBR max AMBR for the set of alternative DRBs, AMBR DRB AMBR of DRB matching with QoS flow with GBR requirement.
24. The network device of claim 23, wherein determining one of the other DRBs as a DRB to which a QoS flow without GBR requirements is to be mapped comprises:
when the other DRBs comprise 1 DRB, determining the DRB as the DRB to which the QoS flow without GBR requirement is mapped; or
And when the other DRBs comprise more than 2 DRBs, randomly selecting one DRB or carrying out priority sequencing on the DRBs in the other DRBs according to the QoS class QCI, and selecting one DRB with the highest priority from the other DRBs or selecting the DRB with the largest AMBR from the other DRBs.
25. The network device of claim 17, wherein the processor is further configured to:
in the alternative DRB set, if no DRB is used for bearing the QoS flow, a new DRB is established;
mapping the QoS flow to the new DRB.
26. The network device of claim 25, wherein when the processor establishes the new DRB, it is specifically configured to: judging whether the QoS flow is a QoS flow with GBR requirement, if so, the DRB is the DRB with GBR requirement; otherwise, the DRB is the DRB without GBR requirement.
27. The network device of claim 16, wherein the processor is further configured to:
when the QoS flow is established, if the DRB resource of the base station can bear the QoS flow, the QoS flow is established, otherwise, the QoS flow is refused to be established according to the configuration priority ARP of the QoS flow;
when deleting the QoS flow, if the DRB resource of the base station can bear the QoS flow, the QoS flow is not deleted, otherwise, the QoS flow is deleted according to the configuration priority ARP of the QoS flow.
28. The network device of claim 27, wherein the processor is further configured to:
when QoS flow carried on DRB is deleted, the DRB is reserved; or alternatively
When the DRB is not needed, the DRB is deleted.
29. The network device of claim 19 or 22, further comprising:
sending GBR and MBR after DRB correction to a terminal through a Radio Resource Control (RRC) signaling or a Medium Access Control (MAC) control unit (MAC CE) signaling or a scheduling process of a physical layer;
or through a preset protocol, the network equipment calculates the QoS parameters of the DRB in the downlink direction, and the terminal calculates the QoS parameters of the DRB in the uplink direction.
30. The network device of claim 16, wherein the transceiver is further configured to send the QoS flow mapped to the DRB to the terminal.
31. A stream receiving method, comprising:
receiving a QoS flow transmitted on a Data Radio Bearer (DRB) determined by a network device, wherein the QoS parameter of the DRB is determined according to the QoS parameter of the QoS flow;
parsing the QoS flow;
wherein determining the QoS parameter of the DRB according to the QoS parameter comprises:
determining an alternative DRB set according to a QoS grade identifier QCI of a received QoS flow, wherein the alternative DRB set comprises at least one DRB;
and determining the DRB to which the QoS flow is mapped in the alternative DRB set according to the Guaranteed Bit Rate (GBR) requirement of the QoS flow.
32. A terminal, comprising:
the system comprises a transceiver and a controller, wherein the transceiver is used for receiving a QoS flow transmitted on a Data Radio Bearer (DRB) determined by network equipment, and the QoS parameter of the DRB is determined according to the QoS parameter of the QoS flow;
a processor configured to parse the QoS flow;
wherein determining the QoS parameter of the DRB according to the QoS parameter comprises:
determining an alternative DRB set according to a QoS grade identifier QCI of a received QoS flow, wherein the alternative DRB set comprises at least one DRB;
and determining the DRB to which the QoS flow is mapped in the alternative DRB set according to the Guaranteed Bit Rate (GBR) requirement of the QoS flow.
33. A communication device, comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of claims 1-15 or the method of 31.
34. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1-15 or 31.
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