WO2019209316A1 - Translation and distribution of quality of service flow parameters in self-backhauling configurations - Google Patents

Translation and distribution of quality of service flow parameters in self-backhauling configurations Download PDF

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Publication number
WO2019209316A1
WO2019209316A1 PCT/US2018/029830 US2018029830W WO2019209316A1 WO 2019209316 A1 WO2019209316 A1 WO 2019209316A1 US 2018029830 W US2018029830 W US 2018029830W WO 2019209316 A1 WO2019209316 A1 WO 2019209316A1
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self
backhauling
parameter
configuration
apparatus
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PCT/US2018/029830
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French (fr)
Inventor
Bruce Cilli
Chuck PAYETTE
Sameerkumar Sharma
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Nokia Solutions And Networks Oy
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Priority to PCT/US2018/029830 priority Critical patent/WO2019209316A1/en
Publication of WO2019209316A1 publication Critical patent/WO2019209316A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/045Interfaces between hierarchically different network devices between access point and backbone network device
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0268Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/047Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations

Abstract

Various communication systems may benefit from appropriate use of parameters. For example, certain wireless communication systems may benefit from translation and distribution of quality of service flow parameters in self-backhauling configurations. A method can include obtaining a quality of service value associated with a session or flow. The method can also include obtaining a self-backhauling configuration applicable to the session or the flow. The method can further include determining a parameter applicable to communication for the session or flow based on the self-backhauling configuration. The method can additionally include sending the parameter toward a self-backhauling node.

Description

TITLE:

TRANSLATION AND DISTRIBUTION OF QUALITY OF SERVICE FLOW PARAMETERS IN SELF-BACKHAULING CONFIGURATIONS

BACKGROUND:

Field:

[0001] Various communication systems may benefit from appropriate use of parameters. For example, certain wireless communication systems may benefit from translation and distribution of quality of service flow parameters in self-backhauling configurations.

Description of the Related Art:

[0002] Figure 1 illustrates a simple example of a self-backhaul network. Wireless self-backhauling is a concept in which a wireless base transceiver station (BTS) or base station can provide backhaul ing services for another BTS. In effect, a BTS can be deployed in any location and use another BTS for its backhaul link. The self-backhauling (sBH) BTS node can service user equipment (UEs) in the normal fashion. The sBH BTH can have, as its backhaul link to the core network, a wireless link to another BTS, which can be referred to as a donor BTS. Thus, a sBH node can include two parts: one side that is a BTS, an sBH BTS; and another side that is a UE, namely an sBH UE). The sBH UEs aggregate the backhaul traffic into fat-pipes or tunnels. So effectively, the sBH node would look like a single UE to the donor BIS. This donor BTS can support the backhauling link to the sBH node while simultaneously supporting connections to other UEs. Also, multiple sBH nodes can be chained together to support a multi-hop backhaul topology.

[0003] Fourth generation (4G) long term evolution (LTE) third generation partnership project (3GPP) release 10 supports wireless sBH. This architecture may be even more useful in the context of fifth generation (5G), because 5G utilizes much higher frequency bands in the mmWave range that support much greater bandwidth. These mmWave bands do not propagate through buildings/objects well and are basically line of sight and reach very short distances on the order of couple 100 meters. Thus, a large number of closely spaced BTS units or next generation Node Bs (gNBs) may be deployed to provide sufficient coverage. Following 5G conventions and for ease of reference the BTS units can be referred to as gNBs, even though the same principles can be applied to gNBs. The use of 5G terminology should be taken only by way of example, and not by way of limitation. Self-backhauling becomes useful to limit the number of costly fixed wire backhaul connections to the gNBs.

[0004] The self-backhauling scenario presents several issues related to the current and future 5G architecture. This discussion focuses on the provisioning of quality of service (QoS) flows. As currently defined, the provisioning of the QoS parameters are done at a macro level assuming a traditional setup of a single radio access network (RAN) and user plane function (UPF). The entity setting the QoS parameters has no insight into the architecture of the sBH network. Thus, when setting the QoS parameters the entity assumes that there is only a single gNB and UE contributing to latency and packet error rate.

[0005] In 5G systems, there is a 5G quality indicator (5QI) that defines parameters related to a QoS Flow. 3GPP technical specification (TS 23.501) defines SGI as“a scalar that is used as a reference to 5G QoS characteristics defined in clause 5.7.4, i.e. access node-specific parameters that control QoS forwarding treatment for the QoS flow.” These access node-specific parameters include packet delay budget (PDB), packet error rate (PER), and the like. 3GPP TS 23.501 is hereby incorporated herein by reference in its entirety. In the 5G architecture, a set of the values of these access nodespecific parameters can be predefined and associated with a scalar value associated with the 5QI. The 5QI value can be passed as part of a policy and charging control (PCC) rule from the policy control function (PCF) to the session management function (SMF). By definition, the PDB value is defined from the UE to the User Plane Function (UPF). Similarly, the PER is defined in 3GPP TS 23.501 as“defines an upper bound for the rate of SDUs (e.g. IP packets) that have been processed by the sender of a link layer protocol (e.g. RLC in RAN of a 3GPP access) but that are not successfully delivered by the corresponding receiver to the upper layer (e.g. PDCP in RAN of a 3GPP access).”

SUMMARY:

[0006] According to certain embodiments, a method can include obtaining a quality of service value associated with a session or flow. The method can also include obtaining a self-backhauling configuration applicable to the session or the flow. The method can further include determining a parameter applicable to communication for the session or flow based on the self-backhauling configuration. The method can additionally include sending the parameter toward a self-backhauling node.

[0007] In certain embodiments, an apparatus can include at least one processor and at least one memory including computer program code. The at least one memory and the computer program code can be configured to, with the at least one processor, cause the apparatus at least to obtain a quality of service value associated with a session or flow. The at least one memory and the computer program code can also be configured to, with the at least one processor, cause the apparatus at least to obtain a self-backhauling configuration applicable to the session or the flow. The at least one memory and the computer program code can further be configured to, with the at least one processor, cause the apparatus at least to determine a parameter applicable to communication for the session or flow based on the self-backhauling configuration. The at least one memory and the computer program code can additionally be configured to, with the at least one processor, cause the apparatus at least to send the parameter toward a self-backhauling node.

[0008] An apparatus, according to certain embodiments, can include means for obtaining a quality of service value associated with a session or flow. The apparatus can also include means for obtaining a self-backhauling configuration applicable to the session or the flow. The apparatus can further include means for determining a parameter applicable to communication for the session or flow based on the self-backhauling configuration. The apparatus can additionally include means for sending the parameter toward a self- backhauling node.

[0009] A computer program product can, according to certain embodiments, encode instructions for performing a process. The process can include obtaining a quality of service value associated with a session or flow. The process can also include obtaining a self-backhauling configuration applicable to the session or the flow. The process can further include determining a parameter applicable to communication for the session or flow based on the self-backhauling configuration. The process can additionally include sending the parameter toward a self-backhauling node.

[00.10] A non-transitoiy computer-readable medium can, in certain embodiments, be encoded with instructions that, when executed in hardware, perform a process. The process can include obtaining a quality of service value associated with a session or flow. The process can also include obtaining a self-backhauling configuration applicable to the session or the flow. The process can further include determining a parameter applicable to communication for the session or flow based on the self-backhauling configuration. The process can additionally include sending the parameter toward a self-backhauling node.

BRIEF DESCRIPTION OF THE DRAWINGS:

[0011] For proper understanding of the invention, reference should be made to the accompanying drawings, wherein:

[0012] Figure 1 illustrates a simple example of a self-backhaul network.

[0013] Figure 2 illustrates a reference architecture from 3GPP TS 23.501. [0014] Figure 3 illustrates a user plane connection in a self-backhauling situation.

[0015] Figure 4 illustrates a non-sBH architecture.

[0016] Figure 5 illustrates a sequence diagram of a method according to certain embodiments.

[0017] Figure 6 illustrates a method according to certain embodiments.

[0018] Figure 7 is an illustration of the architecture of certain embodiments.

[0019] Figure 8 illustrates a further method according to certain embodiments.

[0020] Figure 9 illustrates a system according to certain embodiments.

DETAILED DESCRIPTION:

[0021] Figure 2 illustrates a reference architecture from 3GPP TS 23.501. In a traditional architecture, there is an assumption about the layout of the access network (AN), namely that there is a single AN. Furthermore, the QoS infrastructure is set up based on these same assumptions. This representative configuration includes a single over the air connection between the UE and the AN, and a connection between the AN and the UPF, which is shown as the N3 reference point in Figure 2.

[0022] In self-backhauling configurations, there would be one AN to UPF connection and two or more UE to AN connections, depending on how many hops in the sBH configuration. Additionally, each additional gNB adds latency and/or packet error loss.

[0023] Figure 3 illustrates a user plane connection in a self-backhauling situation. As shown in Figure 3, each sBH gNB has an embedded UE facing its donor/sBH gNB. In Figure 3, this is a multihop sBH configuration. Not only is there a normal UE-gNB connection but there are two more over the air connections: a connection between sBH Nodel and sBH Node2; and a connection between sBH Node2 and the Donor Node. Even though there is latency potential for packet loss through each gNB. The PER and PDB values are set at network entities with no visibility into this self-backhauling architecture. Furthermore, each gNB, assumes that it is the only gNB contributing to packet loss and latency.

[0024] The PCF has no knowledge of the self-backhauling configuration. In fact, tiie PCF would not know if there were self-backhauling in the network at all. So, with a request for a specific 5QI flow that has an associated PDB and PER, the PCF expects the flow to meet the requirements of the selected SQL If a QoS flow is created in the traditional way and resources are allocated based on the original 5QI value, the original 5QI requirements (from the PCF and/or UDM) may not be met since it is not taking into account the additional sBH nodes and donor nodes. For example, as specified in TS 23.501, a 5QI of 7 requires a PDB of 100 ms from the UE to its UPF.

[0025] Figure 4 illustrates a non-sBH architecture. In the normal configuration as shown in Figure 4, there is an over the air connection between the UE and the gNB, a traversal through the gNB, a connection to the UPF, and ultimately a connection to the data network (DN). The single gNB will set its own link layer parameters assuming that its budget is some allocated portion of the 100 ms that has been engineered knowing that there is also the single delay from the backhaul side of the gNB to the UPF that is connected to the data network.

[0026] In the sBH case, as shown in Figure 3, if the QoS flow is provisioned as a 5QI of 7 each gNB will be handling the QoS flow and contributing to latency and error loss. In the example of Figure 3, instead of a single gNB there is effectively 3 gNBs contributing to error loss and latency. Each will set their radio link control (RLC) parameters assuming it was the only gNB contributing to latency and/or packet loss. In the end, the 5QI of 7 will be violated in terms of latency and packet loss. Certain embodiments can avoid this issue. For example, certain embodiments can provide a translation function that operates based on an identified sBH configuration.

[0027] In the current configuration, there is no provision to take into account the self-backhauling configuration so that a selected 5QI will be selected and set in the network and likely the QoS requirements will not be met. [0028] In certain embodiments, which may for example be implemented in a 5G architecture, a topology manager (TM) can be provided to support sBH. The TM can maintain knowledge of the sBH configuration. Topology management may support single/multi-hop and redundant connectivity of the sBH nodes. For example, the TM may maintain the network topology of how the sBH nodes are connected.

[0029] Figure 6 illustrates a method according to certain embodiments. As shown in Figure 6, at 610 an AMF can send a request for a session or flow. At 615, the SMF can receive the request for a session or flow from the AMF. The SMF can then, at 620, querythe UDM and PCF for subscription and policy information. These may be individual queries, although they are shown as one for simplicity of illustration. The query can be received at 625, and the UDM and PCF can provide the requested information at 630. The SMF can receive the requested information at 635. The SMF may then need to determine whetherthe session and/or flow is part of a sBH network. The SMF can determine this through interaction with the TM. For example, at 640, the SMF can send a query to a TM. The TM can receive this query at 645 and reply to the query at 650. At 655 the SMF can receive the reply to the query. From the reply, at 660,the SMF can determine the sBH status of the requested session or flow.

[0030] If it is determined that the QoS flow is across a sBH network, the SMF can further, still at 660, inspect the 5QI requirements to determine whether modifications to the actual 5QI are necessary to support the end-to-end flow requirements. For example, if the original 5QI coming from the PCF and/or UDM is 7 (see, for example, Figure 5.7.4-1 of 3GPP TS 23.501) which has a PDB of 100ms, a QoS translation function can determine the translated 5QI to support this PDB in each hop of the sBH path.

[0031] The QoS translation function can select another 5QI that would take into account the latency between the UE through its gNB, between the UE of the sBH gNB through a donor gNB and on to the UPF. This could be extended similarly to multihop sBH scenarios by taking into account the additional sBH gNBs, as shown in Figure 3. The selected 5QI could be one of the standardized values or a non-standard value. This value can be set by the SMF at 665. There is already in place in TS 23.501 a mechanism to distribute the PDB and PER associated with a non-standard 5QI. This or any other desired mechanism can be used to distribute QoS profile and/or QFI to the AMF, which can receive it at 675. The PER could be addressed similarly to the PDB case described above. If the flow is not part of a sBH architecture the 5QI value can pass unchanged.

[0032] The above examples can be further illustrated in the following details, which provide more non-limiting examples of possible implementations of certain embodiments. Other implementations are also possible, and these implementations are provided by way of illustration and example, not limitation.

[0033] Figure 5 illustrates a sequence diagram of a method according to certain embodiments. As shown in Figure 5, for example, after a packet data unit session establishment request, at 1, the SMF can receive a request from the AMF for a new packet data unit (PDU) session establishment or quality of service (QoS) flow establishment or modification. The SMF can retrieve information including QoS information from the UDM for this UE at 2. Additionally, the SMF can derive the QoS profile from information provided by the PCF, by a PCF policy control get at 3 and a PCFF policy control update notify at 4.

[0034] At this point in this example, the SMF has been provided the 5QI for this QoS flow from a UE to DN perspective. The SMF can work with the topology manager to determine whether the flow is part of an sBH configuration. If the flow is not part of an sBH configuration, the creation of the flow can proceed as normal.

[0035] If the flow is determined to be part of a sBH configuration, additional processing may be required. Otherwise, because the original 5QI value would be sent via non-access stratum (NAS) messaging to the AN, the original 5QI value would set scheduling weights, queue sizes, link layer configuration, hybrid automatic repeat request (H ARQ) parameters, and the like to satisfy the 5QI requirements assuming the AN receiving the 5QI value is the only AN contributing to PDB and/or PER. These values might not satisfy the original 5QI requirements because each hop of the sBH network would add additional latency affecting the PDB and potentially additional packet loss affecting the PER.

[0036] At 5, additional functionality, such as a QoS translation function, can be used to properly set the 5QI value so that each AN is configured properly to achieve the correct PDB and PER. Each predefined 5QI value can have an associated PDB and PER. The QoS translation function can select a PDB and PER that will satisfy the original SQ1 value from the end user UE to the UPF connected to the ultimate DN. This value can be the value of either a standard 5QI or a non-standardized 5QI that can be used to configure the QoS flow via NAS messaging to the AN and to the UPF via an N4 session establishment/modification request

[0037] The translation function can determine these values by knowing the configuration between the UE and the ultimate DN. There may be multiple gNBs involved, including the PDU session of the UE to the DN and the tunnelled PDU session(s) supporting each sBH gNB, as shown in Figure 3.

[0038] These SQls could be the standardized or the non-standardized values to more efficiently support the overall original 5QI. To satisfy the overall 5QI requirement of 100 ms, it may be necessary to specify a 5QI that allows for each hop of 25 ms, because that is all the standardized values would allow. In reality, a value of 40 ms might satisfy the original 5QI requirements, but that value may not be available in the standard 5QI values. The selection of 25 ms may be expensive in terms of resource utilization when only 40 ms was necessary. In this case a non-standardized 5Q1 may be used. There is already in place in TS 23.501 a mechanism to distribute the PDB and PER associated with a non-standard 5QI, and this or any other mechanism can be used. The above numbers were only for illustrative puipose and do not reflect the proposed values for the standard 5QI values.

[0039] The SMF can provide the QoS profile and the QFT of a QoS flow supplied to the AN over the N2 (via the AMF) at establishment of the PDU session or the QoS flow, at 6 through 8. The QoS profile is used to signal a non-standardized 5QI. The QoS profile is signaled by the SMF to the AN via the N2 reference point, at 9, with the AN’s response at 10.

[0040] In Figure 5, some messaging that is not essential tothe explanation has been omitted. For a more complete discussion of an example messaging, refer to Figure 4.3.2.2.1-1 of 3GPP TS 23.502. The entirety of 3GPP TS 23.502 is hereby incorporated herein by reference.

[0041] The following is an example of a way to do the translation ofthe 5QI from the UDM and/or PCF to the value that is to be provisioned in the network. One possible way to determine the translated PDB may bethe following: PDB new = ((PDBorig - xyz) X, where PDB new is the new provisioned PDB value, PDBorig is the PDB retrieved by the SMF fromthe UDM and/or PCF, Z is the number of gNBs in the self-backhauling configuration (for example in Figure 3, the value would be 3), and X is the latency between the (R)AN side of the N3 reference point and the UPF side of the N6 reference point For non-standardized 5QI, the SMF can provide related QOS characteristics defined by the operator.

[0042] Figure 7 is an illustration of the architecture of certain embodiments, based on Figure 4.2.3-1 in TS 23.501. As shown in Figure 7, certain embodiments may include a topology management function (TMF), which can also be referred to as the TM. Certain embodiments may also include a QoS translation function (QTF). The QTF may be a function of the SMF. Interfaces to the TMF and QTF may respectively be Ntmf and Nqtf.

[0043] As can be seen from the examples and discussion above, 5G self- backhauling introduces a disconnect between the QoS values stored in the UDM and PCF and the various self-backhauling configurations. Specifically, the PDB and PER values associated with a 5QI are generally measured from the UE to N6 reference point on the UPF. If these values are pushed down unchanged to the gNB and UPF, the original 5QI requirements simply cannot be met. Certain embodiments provide a translation mechanism to determine an updated 5QI to satisfy the original requirements. Thus, certain embodiments may provide various benefits and/or advantages, such as permitting 5G self- backhauling to performed while still meeting quality objectives.

[0044] Figure 8 illustrates a further method according to certain embodiments. As shown in Figure 8, at 810 a method can include obtaining a quality of service value associated with a session or flow. The quality of service value may be a quality indicator, such as a 5QI. This value may be obtained through a querying mechanism, as described above with reference to Figure 5 and Figure 6, for example.

100451 The method can also include, at 820, obtaining a self-backhauling configuration applicable to the session or the flow. This may involve identifying a number of hops in the self-backhauling configuration. This may be obtained through a querying mechanism, as described above with reference to Figure 5 and Figure 6, for example.

[0046] The method can further include, at 830, determining a parameter applicable to communication for the session or flow based on the self- backhauling configuration. The method can, for example, include determining a modification of an original value of the parameter based on the self- backhauling configuration. For example, an original value of the parameter can be divided by the number of hops in the self-backhauling configuration.

[0047] Depending on the parameter being considered, the original parameter may be a scalar that represents the QFI. For example, the number 5 may represent 100 ms PDB. In this case, division of 100 ms can be performed rather than division of the scalar quantity itself. Thus, if there were two hops, the new parameter can be selected to correspond with 50 ms PDB, which might happen to correspond to a scalar value of 4.

[00481 Also, simple division is just one example. Other options are also possible. For example, if one gNB is more powerful or reliable than another, the system can give that gNB a more stringent requirement than other gNBs in the sBH chain. Thus, simple division of an underlying metric or parameter are just examples, and other forms of division are also permitted.

[0049] The method can further include, at 840, sending the parameter (which may be the modification of the original value) toward a self-backhau!ing node. Any access node that is involved in the self-backhauling configuration can be considered a self-backhauling node for this purpose.

[00501 Figure 9 illustrates a system according to certain embodiments of the invention. In one embodiment, a system may include multiple devices, such as, for example, at least one UE 910, at least one access node 920, which may be an evolved Node B (eNB), gNB, or other base station or access point, and at least one network element 930, which may be an SMF, TM, TMF, QTF, or other entity configured to operate in accordance with the methods and/or architectures described above.

[0051] Each of these devices may include at least one processor, respectively indicated as 914, 924, and 934. At least one memory can be provided in each device, and indicated as 915, 925, and 935, respectively. The memory may include computer program instructions or computer code contained therein. The processors 914, 924, and 934 and memories 915, 925, and 935, or a subset thereof, can be configured to provide means corresponding to the various blocks of Figures 6 and 8.

[0052] As shown in Figure 9, transceivers 916, 926, and 936 can be provided, and each device may also include an antenna, respectively illustrated as 917, 927, and 937. Other configurations of these devices, for example, may be provided. For example, network element 930 may be configured for wired communication, in addition to wireless communication, and in such a case antenna 937 can illustrate any form of communication hardware, without requiring a conventional antenna.

[0053] Transceivers 916, 926, and 936 can each, independently, be a transmitter, a receiver, or both a transmitter and a receiver, or a unit or device that is configured both for transmission and reception.

[0054] Processors 914, 924, and 934 can be embodied by any computational or data processing device, such as a central processing unit (CPU), application specific integrated circuit (ASIC), or comparable device. The processors can be implemented as a single controller, or a plurality of controllers or processors.

[0055] Memories 915, 925, and 935 can independently be any suitable storage device, such as a non-transitory computer-readable medium. A hard disk drive (HDD), random access memory (RAM), flash memory, or other suitable memory can be used. The memories can be combined on a single integrated circuit as the processor, or may be separate from the one or more processors. Furthermoret,he computer program instructions stored in the memory and which may be processed by the processors can be any suitable form of computer program code, for example, a compiled or interpreted computer program written in any suitable programming language.

[0056] The memory and the computer program instructions can be configured, with the processor for the particular device, to cause a hardware apparatus such as UE 910, access node 920, and network element 930, to perform any of the processes described herein (see, for example, Figures 5, 6, and 8). Therefore, in certain embodiments, a non-transitory computer-readable medium can be encoded with computer instructions that, when executed in hardware, perform a process such as one of the processes described herein. Alternatively, certain embodiments of the invention can be performed entirely in hardware.

[0057] Furthermore, although Figure 9 illustrates a system including a UE, access node, and network element, embodiments of the invention may be applicable to other configurations, and configurations involving additional elements. For example, not shown, additional UEs and ANs may be present, and additional core network elements may be present, as illustrated in Figures 1 through ?.

[0058] One having ordinary skill in the art will readily understand that the invention as discussed above may be practiced with steps in a different order, and/or with hardware elements in configurations which are different than those which are disclosed. Therefore, although the invention has been described based upon these preferred embodiments, it would be apparent to those of skill in the art that certain modifications, variations, and alternative constructions would be apparent, while remaining within the spirit and scope of the invention.

Claims

WE CLAIM:
1. A method, comprising:
obtaining a quality of service value associated with a session or flow; obtaining a self-backhauling configuration applicable to the session or the flow;
determining a parameter applicable to communication for the session or flow based on the self-backhauling configuration; and
sending the parameter toward a self-backhauling node.
2. The method of claim 1, wherein the determining the parameter comprises determining a modification of an original value of the parameter based onthe self-backhauling configuration.
3. The method of claim 1, wherein the quality of service value comprises a quality indicator.
4. The method of claim 3, wherein the quality indicator comprises a fifth generation quality indicator.
5. The method of claim 1, wherein the obtaining the self-backhauling configuration comprises identifying a number of hops in the self-backhauling configuration.
6. The method of claim 5, wherein the determining the parameter comprises dividing an original number of the parameter by the number of hops.
7. The method of claim 1, wherein the parameter comprises at least one of packet delay budget or packet error rate.
8. An apparatus, comprising:
at least one processor; and
at least one memory including computer program code,
wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to obtain a quality of service value associated with a session or flow; obtain a self-backhauling configuration applicable to the session or the flow;
determine a parameter applicable to communication for the session or flow based on the self-backhauling configuration; and
send the parameter toward a self-backhauling node.
9. The apparatus of claim 8, wherein the determination ofthe parameter comprises determining a modification of an original value of the parameter based on the self-backhauling configuration.
10. The apparatus of claim 8, wherein the quality of service value comprises a quality indicator.
11. The apparatus of claim 10, wherein the quality indicator comprises a fifth generation quality indicator.
12. The apparatus of claim 8, wherein obtaining the self-backhauling configuration comprises identifying a number of hops in the self-backhauling configuration.
13. The apparatus of claim 12, wherein the determining the parameter comprises dividing an original number of the parameter by the number of hops.
14. The apparatus of claim 8, wherein the parameter comprises at least one of packet delay budget or packet error rate.
15. An apparatus, comprising:
means for obtaining a quality of service value associated with a session or flow;
means for obtaining a self-backhauling configuration applicable to the session or the flow;
means for determining a parameter applicable to communication for the session or flow based on the self-backhauling configuration; and
means for sending the parameter toward a self-backhauling node.
16. The apparatus of claim 15, wherein the means for determining the parameter comprises means for determining a modification of an original value of the parameter based on the self-backhauling configuration.
17. The apparatus of claim 15, wherein the quality of service value comprises a quality indicator.
18. The apparatus of claim 17, wherein the quality indicator comprises a fifth generation quality indicator.
19. The apparatus of claim 15, wherein the obtaining the self- backhauling configuration comprises identifying a number of hops in the self- backhauling configuration.
20. The apparatus of claim 19, wherein the determining the parameter comprises dividing an original number of the parameter by the number of hops.
21. The apparatus of claim 15, wherein the parameter comprises at least one of packet delay budget or packet error rate.
22. A computer program product encoding instructions for performing a process, the process comprising the method according to any of claims 1-7.
23. A non- transitory computer-readable medium encoded with instructions that, when executed in hardware, perform a process, the process comprising the method according to any of claims 1 -7.
PCT/US2018/029830 2018-04-27 2018-04-27 Translation and distribution of quality of service flow parameters in self-backhauling configurations WO2019209316A1 (en)

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