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WO2024036573A1 - Procédé d'ajout et de suppression de trajet pour prendre en charge une configuration à trajets multiples - Google Patents

Procédé d'ajout et de suppression de trajet pour prendre en charge une configuration à trajets multiples Download PDF

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Publication number
WO2024036573A1
WO2024036573A1 PCT/CN2022/113385 CN2022113385W WO2024036573A1 WO 2024036573 A1 WO2024036573 A1 WO 2024036573A1 CN 2022113385 W CN2022113385 W CN 2022113385W WO 2024036573 A1 WO2024036573 A1 WO 2024036573A1
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WIPO (PCT)
Prior art keywords
path
relay
remote
candidate
addition
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Ceased
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PCT/CN2022/113385
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English (en)
Inventor
Guan-Yu Lin
Xuelong Wang
Nathan Edward Tenny
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MediaTek Inc
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MediaTek Inc
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Filing date
Publication date
Application filed by MediaTek Inc filed Critical MediaTek Inc
Priority to PCT/CN2022/113385 priority Critical patent/WO2024036573A1/fr
Priority to CN202311006317.1A priority patent/CN117596645A/zh
Priority to US18/450,533 priority patent/US20240064093A1/en
Priority to EP23191652.9A priority patent/EP4325931A1/fr
Publication of WO2024036573A1 publication Critical patent/WO2024036573A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15507—Relay station based processing for cell extension or control of coverage area

Definitions

  • the disclosed embodiments relate generally to wireless communication, and, more particularly, to introduce detailed signaling for second path additional and second path removal for a remote UE supporting multipath feature.
  • a relay node can be used to forward the packet/signal between the network node (e.g. the based station, the transmission and reception point (TRP) ) and the use equipment (UE) .
  • the network node e.g. the based station, the transmission and reception point (TRP)
  • TRP transmission and reception point
  • UE use equipment
  • the relay node can be network vendor deployed infrastructure, such as LTE Relay node, or NR IAB (integrated access backhaul) node specified since 3GPP Rel-16. This kind of relay nodes are controlled by the network and probably be transparent to the UE.
  • relay node could be a user deployed relay, e.g., using a user equipment as relay (UE relay) .
  • UE relay user equipment
  • This kind of relay node compared to IAB, has a much more limited transmission/reception capability in forwarding traffic. However, its advantage is to support low-cost and dynamic/flexible deployment.
  • UE-to-NW relay Using a UE relay to extend network coverage is known as UE-to-NW relay.
  • a relay UE uses sidelink (SL, different from uplink and downlink) resource to communicate with a remote UE (or source UE, who is the source of traffic to be forwarded) . Therefore, in 3GPP, UE-to-NW relay is also known as SL relay.
  • L2 relay Layer 2 relay
  • L3 relay Layer 3 relay
  • L3 based Sidelink Relay UE forwards data packet flow of the Remote UE as IP traffic as a general Router in data communication network.
  • the IP traffic based forwarding is conducted in a best efforts way.
  • L3 UE-to-Network Relay there exist both SLRBs over PC5 and Uu Radio Bearers to carry the QoS flows established between Remote UE and 5GC.
  • L3 UE-to-Network Relay can support flow based mapping at SDAP layer when converting PC5 flow to Uu Flow, or vice versa, during traffic forwarding.
  • L3 based Sidelink Relay UE works like an IP router, remote UE is transparent to the base station, i.e., the base station cannot know whether the traffic transmitted by a relay UE originates from this relay UE itself, or originates from a remote UE but is forwarded by this relay UE.
  • relaying is performed above RLC sublayer via Relay UE for both CP and UP between Remote UE and network.
  • Uu SDAP/PDCP and RRC are terminated between Remote UE and gNB, while RLC, MAC and PHY are terminated in each link (i.e. the link between Remote UE and UE-to-Network Relay UE and the link between UE-to-Network Relay UE and the gNB) .
  • An adaptation layer over RLC layer is supported in Uu to perform bearer mapping and it can be also placed over PC5 to perform bearer mapping at sidelink.
  • the adaptation layer between the Relay UE and gNB is able to differentiate between bearers (SRBs, DRBs) of a particular Remote UE.Within a Uu DRB, different Remote UEs and different bearers of the Remote UE can be indicated by additional information included in adaptation layer header.
  • SRBs, DRBs bearers
  • DRBs bearers of the Remote UE.
  • additional information included in adaptation layer header Unlike in L3 relay, in L2 relay the base station is aware of each remote UE, and thus before the relay UE starts to forward normal data traffic, the end-to-end connection between a remote UE and the base station should be established first. After establishing the RRC connection via SL relay, the remote UE can then forward data traffic based on the established bearers and the forwarding/router information carried in adaptation layer.
  • 3GPP R17 sidelink relay is supported to enable network coverage extension.
  • RSRP received signal strength xxx
  • a remote UE should have the measured Uu RSRP below a RSRP threshold (threshHighRemote) .
  • a UE can request for help traffic forwarding only when the UE has a very bad Uu RSRP.
  • a UE can serve as a relay UE only when its Uu RSRP is above a RSRP threshold (threshLowRelay) . This means a UE can help other UE to forward traffic only when the UE has good Uu link quality.
  • a UE can be a relay UE only when its Uu RSRP is below another RSRP threshold (known as threshHighRelay) , which is used to prevent cell-center UE from being a relay. Otherwise, if a relay UE is in very cell center, and a remote UE is in cell edge, the remote UE would transmit with a very large power to communicate with the cell center UE and thus cause much interference to its neighboring UE.
  • threshHighRelay another RSRP threshold
  • sl-RSRP-Thresh sidelink RSRP threshold
  • a UE When a UE satisfies the remote UE criteria (Uu RSRP below threshHighRemote) , it is up to UE implementation to perform cell reselection or relay selection.
  • the remote UE criteria Uu RSRP below threshHighRemote
  • 3GPP R17 only single path UE-to-NW relay is supported. That is, a UE can select one of direct path (i.e. directly connect to a gNB via Uu link) or indirect path (i.e. connect to the gNB via traffic forwarding of a relay UE) , but not both.
  • 3GPP R17 only support single-hop UE-to-NW relay. Support of multi-hop UE-to-NW relay is left to future releases.
  • Multi-hop relay obviously, can help to eliminate deep coverage hole.
  • multipath relay allows multiple traffic forwarding paths from the source to destination, which definitely increase the transmission reliability and may be also beneficial to remote UE throughput.
  • Methods are provided to establish the second path towards the network for a UE support multipath configuration.
  • the remote UE performs measurement for candidate serving cells and/or candidate relay UE, when first path is already established and works normally and the remote UE is multipath enabled.
  • a remote UE perform measurement report when measurement events specific to multipath occur.
  • a new event to trigger measurement report for multipath is when PCell becomes better than threshold1 and candidate L2 U2N Relay UE becomes better than threshold2.
  • a new event to trigger measurement report for multipath is when serving L2 U2N Relay UE becomes better than threshold1, and NR Cell becomes better than threshold2.
  • a new event to trigger measurement report for multipath is when serving L2 U2N Relay UE becomes better than threshold1, and a candidate L2 U2N Relay UE becomes better than threshold2.
  • the gNB transmit RRC message via existing path to reconfigure the second path (for path addition) or to release the configuration (for path removal) .
  • Figure 1 and Figure 2 show exemplary signaling for a remote UE who has an indirect path to be configured with a new direct path as the second path.
  • Figure 1 is the intra-gNB case, i.e. relay UE and remote UE select the serving cells of the same gNB.
  • Figure 2 is the inter-gNB case, i.e. relay UE and remote UE select serving cells of different gNB.
  • Figure 3 (a) , 3 (b) , 3 (c) , and 4 are exemplary signaling for a remote UE who has a direct path to be configured with a new indirect path as the second path.
  • Figure 3 (a) , 3 (b) , and 3 (c) are for the intra-gNB case, while Figure 4 is for the inter-gNB case.
  • Figure 3 (a) is the exemplary signaling for a remote UE to add an indirect path, wherein the remote UE provide measurement report and it is up to the network to configure the second path for a remote UE.
  • Figure 3 (b) is the exemplary signaling for a remote UE to add an indirect path, wherein the remote UE transmit RRC message to request for setting up the indirect path.
  • Figure 3 (c) is the exemplary signaling for a remote UE to add an indirect path, wherein the remote UE autonomously select a suitable relay, and transmit RRC message to report the establishment of the second (indirect) path.
  • Figure 4 is the exemplary signaling for a remote UE to add an indirect path wherein the relay UE is served by a different gNB.
  • remote UE When remote UE has built a direct path, there are several models for the remote UE to add the second path (an indirect path) using a relay.
  • SCell addition regardless of whether the first path of the remote UE is a direct or an indirect path. That is, the definition of SCell addition is extended/generalized to cover “adding an indirect path via relay” .
  • relay addition means remote UE adds a relay without an existing RRC connection between remote UE and gNB, while relay addition means remote UE adds a relay given an existing RRC connection.
  • relay selection as the procedure for a remote to select its first relay
  • relay addition as the procedure for a remote to select the second or more relay.
  • remote UE and the relay are connected to the same base station (or TRP) , we reuse relay selection procedure whenever adding a relay as a new indirect path.
  • remote UE When remote UE has an indirect path, and it wants to add a direct path, there are also several ways to model the second path addition.
  • gNB can configure the remote UE to add a NR Cells via RRCReconfiguration, and may use MAC CE to activate or deactivate the configured serving cell.
  • the path addition when a remote UE wants to add a direct path as the second (or third ...) path, the path addition is considered as SCell addition, if there is already existing direct link for a serving cell of same gNB. Otherwise (if there is no direct link for a serving cell of the same gNB) , the path addition is considered as cell selection.
  • the remote UE needs to perform measurement report in case a candidate cell or candidate relay becomes available. Note that in addition to second path addition, measurement report is required for second path removal as well.
  • Remote UE can perform the measurement (for Uu or PC5) according to the measurement configuration (including configured measurement events)
  • Remote UE performs the measurement report according to its measurement to gNB
  • gNB decides the addition of the secondary path and sends the corresponding RRC messages to Remote UE (and candidate Relay UE)
  • Figure 1 shows the exemplary signaling for remote UE, who already has an indirect path established to add a second path (direct path) , and wherein the candidate cell is exactly the same as the cell of the serving relay.
  • the remote UE perform measurement for NR cells including the serving cell of the serving relay UE.
  • measurement event happens, e.g. remote UE receives gNB with RSRP/SINR above threshold, the remote UE sends a measurement report to gNB via relay forwarding. That is, even when UE selects a serving relay, UE can still be configured with measurement report for NR cell measurement.
  • the network could transmit message (e.g.
  • step 2 is a RRC Reconfiguration message
  • UE may transmit RRC Reconfiguration complete message to the gNB as the response to the RRC reconfiguration message in step 2.
  • step 1 and 2 can be saved if remote UE is configured to perform autonomous second path addition. That is, once remote UE consider the NR cell with good Uu link quality, the remote UE can trigger RACH to establish the Uu link as long as the criteria of Uu link quality configured by the network is satisfied.
  • Figure 2 shows another example of second path addition, wherein remote UE selects a relay, and would like to add a direct path to the candidate gNB which is different for the gNB of the selected relay.
  • the procedure could reuse the procedure for NR DC SCG addition, and the only difference is that remote and its MCG gNB communicates via SL relay.
  • Figure 3 (a) and 3 (b) shows the exemplary signaling for a remote UE with direct link established to add a second path (indirect path via a candidate relay) .
  • FIG. 3 (a) shows the example when second path addition procedure is initiated by the network.
  • remote UE is configured to measure for candidate relay UE (e.g. for its SL-RSRP or SD-RSRP) when remote UE already has a serving cell.
  • candidate relay UE e.g. for its SL-RSRP or SD-RSRP
  • the remote UE send measurement report to the gNB.
  • the identity of qualified candidate relay can be indicated in one of the measurement report, SidelinkUEInformation, or UEAssistanceInformation.
  • the gNB can transmit RRC reconfiguration message to configure the Uu and SL RLC channel configuration for the indirect path.
  • the signaling in step 2 can be transmitted via direct link or indirect link.
  • Figure 3 (b) shows the example that the remote UE initiate second path addition procedure by sending request message.
  • the remote UE can transmit a request message for second path addition via relay forwarding to the gNB.
  • This request message may extend existing RRCSetupRequest message or create a new RRC message to indicate the request for the second path.
  • the request message may contain one or a list of suitable relay UEs who meet the AS criteria, wherein the AS criteria may apply the legacy criteria for R17 SL relay (e.g.
  • the gNB may reply with a message (e.g. agree or reject) , wherein the response message may extend the existing RRCSetup/RRCReject message or apply a new RRC message. If a list of multiple relay UEs are provided to the network, the network can select one for the remote UE.
  • Figure 3 (c) shows the example that the remote UE adds the indirect path autonomously by sending a RRC message as notification through relay.
  • the gNB knows that the remote UE wants to apply the candidate relay to build the second path.
  • the gNB then reconfigure per-hop UL/SL RLC channel and end-to-end bearer for the indirect path.
  • Figure 4 illustrate the exemplary signaling for a remote UE with direct path to add the second (indirect) path.
  • the signaling flow could be similar to NR DC for secondary node addition.
  • Relay UE and remote UE may select different serving cells.
  • the serving cell/gNB/TRP may only support multipath configuration wherein remote UE and relay UE are linked to the same gNB or serving cell.
  • the remote UE excludes those candidate relay UEs connected to different gNB.
  • a remote UE if a remote UE has an indirect path, and the PCell of the relay UE does not support inter-gNB multipath, then the remote UE does not consider NR Cell different from that of relay UE as candidate cell.
  • remote UE may need to change its relay UE if its relay UE changes serving cell when PCell of the remote UE does not support inter-gNB multipath. For example, if relay UE performs handover and thus link to different gNB from the remote UE, then the remote UE may need to change its serving cell (e.g. handover to keep the indirect path) or change its relay (e.g. drop the indirect path and perform relay reselection, searching for a candidate relay linked to same gNB as the relay UE) .
  • serving cell e.g. handover to keep the indirect path
  • change its relay e.g. drop the indirect path and perform relay reselection, searching for a candidate relay linked to same gNB as the relay UE
  • inter-gNB multipath i.e. one path is on MCG and one path is one SCG
  • 3GPP R17 mechanism to release the indirect path, since the two paths belong to different RRC connection and can be handled separately.
  • two paths share the same RRC connection.
  • the UE can then use the existing (first) path to report the status of the second (removed) path, if needed.
  • the indirect path or the selected relay UE of the remote UE may become unavailable (e.g. SL radio link failure occurs, SL-RSRP below a threshold, upper layers indicate not to use the currently selected relay, or upper layers request the release of the PC5-RRC connection or when AS layer releases the the PC5-RRC connection with the currently selected U2N Relay UE) .
  • the remote UE reports via Uu link to gNB.
  • SidelinkUEInformation may be used to carry information when SL is not applicable.
  • Remote UE reports the reason/cause to release the indirect path.
  • gNB would reconfigure the remote UE, e.g.
  • Un-received PDCP packets may be retransmitted for both UL and DL directions via the direct path.
  • a remote UE configured with multipath feature after an indirect path is tear down, need not perform RRC reestablishment procedure (since the direct link still work normally) , but can trigger relay (re) selection procedure to search for suitable relay UE for second path addition.
  • gNB can trigger UE to release a path. For example, in case UE has infrequent traffic to transmit, gNB may want UE to maintain a single indirect path to save power.
  • gNB can send a RRC message to the remote UE (via either direct or indirect path) to indicate which path to be removed, and instruct the remote UE to reconfigure/release the corresponding AS configuration.
  • remote UE may be configured to release the SL RLC configuration towards indirect path.
  • the remote UE may be instructed to flush all PUCCH/SRS configuration for the released serving cell, and reset the Uu MAC entity.
  • RRC release message can be reused. Otherwise, the network may extend existing RRC message (e.g. RRC Release or RRC reconfiguration) to remove a path without changing RRC state or triggering RRC reestablishment procedure.
  • RRC Release or RRC reconfiguration e.g. RRC Release or RRC reconfiguration
  • event X1, X2, Y1, and Y2 are specified for R17 SL relay.
  • Event X1 means serving L2 U2N Relay UE becomes worse than threshold1 and NR Cell becomes better than threshold2;
  • event X2 means serving L2 U2N Relay UE becomes worse than threshold;
  • event Y1 means PCell becomes worse than threshold1 and candidate L2 U2N Relay UE becomes better than threshold2; and
  • event Y2 means candidate L2 U2N Relay UE becomes better than threshold.
  • new event M1/M2/M3/M4 for multipath configuration have same definition as the event X1/X2/Y1/Y2 respectively, and the threshold could be in unit of dB for RSRQ or SINR, or in unit of dBm for RSRP.
  • a new event to trigger measurement report for multipath is when PCell becomes better than threshold1 and candidate L2 U2N Relay UE becomes better than threshold2.
  • the event intends to inform network of the availability to add the second path (an indirect path) .
  • a new event to trigger measurement report for multipath is when serving L2 U2N Relay UE becomes better than threshold1, and NR Cell becomes better than threshold2.
  • the event intends to inform network of the availability to add the second path (a direct path) .
  • a new event to trigger measurement report for multipath is when serving L2 U2N Relay UE becomes better than threshold1, and a candidate L2 U2N Relay UE becomes better than threshold2.
  • the event intends to inform network of the availability to add the second path (an indirect path) .
  • a remote UE configured with multipath is not requested to measure for potential candidate serving cell or candidate relay UEs if this remote UE is already configured with the maximum number of configurable paths, and all configured paths works well, e.g. above threshold.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un appareil et des procédés pour établir le second trajet vers le réseau pour qu'un UE prenne en charge une configuration à trajets multiples. Selon un aspect, l'UE distant met en œuvre une mesure pour des cellules de desserte candidates et/ou un UE de relais candidat, lorsque le premier trajet est déjà établi et fonctionne normalement et que l'UE distant est activé par trajets multiples. Selon un aspect, un UE distant met en œuvre un rapport de mesure lorsque des événements de mesure spécifiques à des trajets multiples se produisent, 3 nouveaux événements de mesure étant divulgués dans l'invention. Selon un aspect, sur la base d'un rapport de mesure, le gNB transmet un message RRC par l'intermédiaire d'un trajet existant afin de reconfigurer le second trajet (pour l'ajout de trajet) ou de libérer la configuration (pour la suppression de trajet).
PCT/CN2022/113385 2022-08-18 2022-08-18 Procédé d'ajout et de suppression de trajet pour prendre en charge une configuration à trajets multiples Ceased WO2024036573A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2022/113385 WO2024036573A1 (fr) 2022-08-18 2022-08-18 Procédé d'ajout et de suppression de trajet pour prendre en charge une configuration à trajets multiples
CN202311006317.1A CN117596645A (zh) 2022-08-18 2023-08-10 针对3gpp r18多路径的设计
US18/450,533 US20240064093A1 (en) 2022-08-18 2023-08-16 Design for 3gpp r18 multi-path
EP23191652.9A EP4325931A1 (fr) 2022-08-18 2023-08-16 Conception pour un trajet multiple r18 3gpp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/113385 WO2024036573A1 (fr) 2022-08-18 2022-08-18 Procédé d'ajout et de suppression de trajet pour prendre en charge une configuration à trajets multiples

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111034334A (zh) * 2017-08-11 2020-04-17 华为技术有限公司 一种路径转换方法、相关装置及系统
WO2021239047A1 (fr) * 2020-05-28 2021-12-02 Huawei Technologies Co., Ltd. Procédés, appareil et systèmes pour une commutation rapide de trajets dans des communications sans fil avec une coopération d'équipements utilisateurs (ue)
CN113950110A (zh) * 2020-07-16 2022-01-18 展讯半导体(南京)有限公司 Uu路径到直接通信路径的切换及候选中继UE指示方法、装置、存储介质、终端、基站

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111034334A (zh) * 2017-08-11 2020-04-17 华为技术有限公司 一种路径转换方法、相关装置及系统
WO2021239047A1 (fr) * 2020-05-28 2021-12-02 Huawei Technologies Co., Ltd. Procédés, appareil et systèmes pour une commutation rapide de trajets dans des communications sans fil avec une coopération d'équipements utilisateurs (ue)
CN113950110A (zh) * 2020-07-16 2022-01-18 展讯半导体(南京)有限公司 Uu路径到直接通信路径的切换及候选中继UE指示方法、装置、存储介质、终端、基站

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZTE CORPORATION, SANECHIPS: "Discussion on SL relay service continuity", 3GPP DRAFT; R2-2108147, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20210809 - 20210827, 6 August 2021 (2021-08-06), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052034650 *

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