31 results about "Context transfer" patented technology

Certain aspects of the present disclosure provide techniques for separation of inter-cell handover and context transfer. An example method for wireless communications by a first network entity includes obtaining, from a first user equipment, a first request to establish a first communication link between the first user equipment and a second network entity; transmitting a second request for a first address of the second network entity; obtaining an indication of the first address of the second network entity; transmitting, to the second network entity at the first address, the first request; and forwarding communications associated with the first communication link between the first user equipment and the second network entity.

Proposed are a method and device for configuring a context transfer frame used by a serving AP MLD to transfer context to a target AP MLD in a wireless LAN system. Specifically, a non-AP STA associated with a non-AP MLD transmits a roaming request frame to a first AP associated with a first AP MLD. After the context transfer frame is transferred from the first AP MLD to a second AP MLD, the non-AP STA receives a roaming response frame from the first AP. The context transfer frame includes a bitmap field, a TID field, and context. The TID field includes information about a TID index having a bit value of 1 in the bitmap field. The context includes context for traffic indicated by the TID index.

Methods and apparatuses for feedback procedures for context transfer in WLANs. A method of wireless communication performed by a station (STA) includes determining to roam from a first access point (AP) to a second AP. The method further includes receiving, from the second AP, context transfer feedback information associated with a context that has been set up with the first AP, the context transfer feedback information indicating information about parameters associated with the context.

This application provides a context transfer method and a communication apparatus. The method includes: When an edge enabler client context fails to be relocated from a second edge enabler server to a first edge enabler server, a first apparatus sends first information to a first edge application server corresponding to the first edge enabler server, where the first information is used by the first edge application server to subscribe to edge enabler server capability exposure information from the first edge enabler server. In the foregoing technical solution, when an edge enabler client context fails to be transferred, the first apparatus may indicate a target edge application server to subscribe to edge enabler server capability exposure information from a target edge enabler server.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A first access and mobility management function (AMF) receives, from a user equipment (UE), a registration request message including information regarding a public land mobile network (PLMN) with a disaster condition, wherein the information regarding the PLMN with the disaster condition indicates a PLMN of the UE which has faced the disaster condition, stores the information regarding the PLMN with the disaster condition included in the registration request message as a part of a UE context, receives, from a second AMF, a UE context transfer request message, and transmits, to the second AMF, a UE context transfer response message in response to the UE context transfer request message, the UE context transfer response message comprising the UE context.

A station (STA) may transmit an intent to roam to one or more neighboring APs to a current AP associated with the STA. In an embodiment, a context transfer may be performed to transfer contexts from a current AP to a target AP, where the context transfer may reduce a time that may be needed for a link to reach an optimal performance level upon the STA roaming to a target AP. A context transfer may include an exchange of relevant information between APs, including between a current AP and a target AP, such that the target AP is aware of one or more parameters of one or more contexts when the STA roams to the target AP.

Methods and apparatuses for seamless roaming in WLANs are provided. A method of wireless communication performed by a station (STA) includes determining to roam from a first access point (AP) to a second AP. The method includes receiving, from the first AP, context transfer feasibility information associated with a context set up with the first AP and at least one candidate AP for the STA to roam to.

Methods and apparatuses for transferred content notification in next generation WLANs. A method of wireless communication performed by a station (STA) includes determining to roam from a first access point (AP) to a second AP. The method further includes receiving a context transfer notification associated with a context that has been set up with the first AP. The context transfer notification indicates whether the context has been transferred from the first AP to the second AP.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. In particular, proposed in the present disclosure are a method and apparatus for improving a paging procedure and a context transfer procedure according to UE mobility in order to efficiently maintain an RRC INACTIVE state of a UE in a wireless communication system.

The invention discloses a generative financial report writing method based on role division, and relates to the technical field of report writing. By constructing a semantic anchor point set and performing structured compression processing, key semantic information for context transfer can be efficiently extracted without depending on lengthy content of an original text, and the problem of information truncation caused by limited input length in a traditional chain Prompt mode is fundamentally avoided; a structured semantic abstract is used as a unique context source generated by a next role, and an anchor binding and semantic coverage verification mechanism is introduced, so that the phenomena of information dislocation, semantic drift, key loss and the like in a context compression process are effectively prevented; and through anchor point consistency comparison, it is ensured that subsequent generated content accurately restores an original logic chain, accurate inheritance and closed-loop control on content semantics are formed among roles, and therefore the problem that the context state gradually loses efficacy in Prompt chain transmission is comprehensively solved.

The present disclosure provides techniques for seamless roaming with uplink / downlink context transfer. A first AP MLD of a SMD establishes an association between the SMD and a non-AP MLD, receives UL MPDUs from the non-AP MLD, each UL data MPDU having a corresponding SN, transmits content of the UL data MPDUs received from the non-AP MLD to a distribution system, maintains UL context information of the association, receives a roaming request from the non-AP MLD, transfers UL context information to the second AP MLD, the UL context information comprising a SN of the last UL data MPDU received from, and acknowledged to, the non-AP MLD and forwarded to the distribution system, and transmits a roaming response to the non-AP MLD, the roaming response comprising an indication of the SN of the last UL data MPDU received from, and acknowledged to, the non-AP MLD and forwarded to the distribution system.

Provided in the present application are a communication method and apparatus. The method comprises: a first access-point multi-link device determining that a station multi-link device has roamed from the first access-point multi-link device to a second access-point multi-link device, and storing first context information of the station multi-link device for a first duration. When determining that a station multi-link device completes roaming, a first access-point multi-link device stores, for a first duration, context information related to the station multi-link device, rather than immediately deleting the context information once the station multi-link device completes the roaming. Therefore, the additional overheads caused by repeated roaming of the station multi-link device can be effectively reduced, for example, the additional overheads caused by repeated context transfer or context re-negotiation in a roaming scenario can be reduced.

In one aspect, a method includes initiating a roaming procedure for a Non-Access Point Multi-Link Device (Non-AP MLD) to roam from a current Access Point Multi-Link Device (AP MLD) onto a target AP MLD; determining whether a multi-phased roaming procedure for the Non-AP MLD to roam to the target AP MLD is possible; performing the multi-phased roaming procedure when the multi-phased roaming procedure is possible; and performing a single-phased roaming procedure when the multi-phased roaming procedure is not possible.

A station (STA) may transmit an intent to roam to one or more neighboring APs to a current AP associated with the STA. In some embodiments, a context transfer may be performed to transfer contexts from a current AP to a target AP, where the context transfer may reduce a time that may be needed for a link to reach an optimal performance level upon the STA roaming to a target AP. A context transfer may include an exchange of relevant information between APs, including between a current AP and a target AP, such that the target AP is aware of one or more parameters of one or more contexts when the STA roams to the target AP.

The invention discloses a method and a system for realizing a two-dimensional set data type based on a database extension head structure. The method comprises the following steps: constructing a recursively nested EAH hierarchical varlena storage architecture, storing a nested set EAH head in a dvalue data area of a root EAH, and storing specific data elements in a tail layer EAH; the nested EAH zero copy assignment is realized through the eohcontext memory context transfer; and finishing persistence and access by adopting a top-down serialization / deserialization mechanism. According to the method, the two-dimensional set type is originally supported on the kernel level, and compared with a traditional one-dimensional array, the assignment efficiency and the storage performance of a multi-dimensional data structure are remarkably improved, the query implementation complexity of a complex data model is reduced, and the direct expression ability of a database to two-dimensional and higher-dimensional data is enhanced.

Disclosed are techniques for registering a user equipment (UE) to a new access and mobility management function (AMF). When a new access and mobility management function (AMF) determines that an old AMF is disjoint AMF i.e. they are not connected, then the new AMF fetches the UE context (5GMM and 5GSM context) from the old AMF via new generation radio access network (NG-RAN). The new AMF routes a Namf_Communication_UEContextTransfer request message to the old AMF to fetch the UE contexts via NG-RAN. The old AMF sends the UE contexts in the Namf_Communication_UEContextTransfer response message to the new AMF via NG-RAN. Based on the context transfers between the new AMF and the old AMF, the UE is registered to the new AMF.

The invention provides a communication method and device. The method comprises the steps that a first access point multi-link device determines that a site multi-link device roams from the first access point multi-link device to a second access point multi-link device, and first context information of the site multi-link device is stored within a first duration. When the first access point multi-link device determines that the station multi-link device completes roaming, the first access point multi-link device stores the context information related to the station multi-link device in the first duration instead of deleting the context information immediately after the station multi-link device completes roaming, so that the roaming of the station multi-link device is completed. Therefore, the extra overhead caused by repeated roaming of the site multi-link equipment can be effectively reduced, for example, the extra overhead caused by repeated context transfer or context re-negotiation in a roaming scene can be reduced.

Certain aspects of the present disclosure provide techniques for separation of inter-cell handover and context transfer. An example method for wireless communications by a first network entity includes obtaining, from a first user equipment, a first request to establish a first communication link between the first user equipment and a second network entity; transmitting a second request for a first address of the second network entity; obtaining an indication of the first address of the second network entity; transmitting, to the second network entity at the first address, the first request; and forwarding communications associated with the first communication link between the first user equipment and the second network entity.

Aspects of the present disclosure relate to apparatuses and methods for UE context transmission at sensing function (SF) handover. A first apparatus includes at least one memory and at least one processor coupled with the at least one memory and configured to cause the apparatus to: receive a first message, the first message including a first identification (ID) of a UE; determining whether the UE or a serving radio access node (RAN) node of the UE is within a serving area of the first SF based at least on the first message; determining a second SF for serving the UE based on determining that the UE or a serving RAN node of the UE is outside the serving area; and causing a first context of the UE to be transmitted from the first SF to the second SF, the first context being created at the first SF.

Methods and apparatuses for enabling seamless roaming in next generation WLANs. A method of wireless communication performed by a station (STA) includes determining to roam from a first access point (AP) to a second AP. The method further includes receiving, from the first AP, context transfer feasibility information associated with a context that has been set up with the first AP, the context transfer feasibility information further associated with at least one candidate AP for the STA to roam to.

The present disclosure provides techniques for seamless roaming with uplink / downlink context transfer. A first AP MLD of a SMD establishes an association between the SMD and a non-AP MLD, maintains a DL transmit buffer comprising DL data MPDUs and corresponding sequence numbers for the DL data MPDUs, maintains a SN of a first unacknowledged DL data MPDU in the DL transmit buffer (WinStartO), receives a roaming request from the non-AP MLD, transfers DL context information to the second AP MLD, the DL context information comprising a SN of the first unacknowledged DL data MPDU (WinStartO) and a next SN value indicating a SN corresponding to a first DL data MPDU that the second AP MLD is expected to transmit to the non-AP MLD, and transmits a roaming response to the non-AP MLD.

Methods and apparatuses for feedback procedures for context transfer in WLANs. A method of wireless communication performed by a station (STA) includes determining to roam from a first access point (AP) to a second AP. The method further includes receiving, from the second AP, context transfer feedback information associated with a context that has been set up with the first AP, the context transfer feedback information indicating information about parameters associated with the context

A method of controlling an electronic device for enabling a context transfer from a virtual session to an environment external to the virtual session, includes detecting at least one user in an a virtual session; based on detecting the at least one user, obtaining a context of at least one virtual device content present in the virtual session, based on detecting the at least one user; obtaining at least one user interest related with the at least one virtual device content using at least one user input in the virtual session; obtaining correlation information between the at least one user interest and at least one content capability of a plurality of real world user devices of the at least one user; and providing at least one real world user device, among the plurality of user devices, to the at least one user for transferring the context of the at least one virtual device content based on the correlation information.

A technique for performing a context transfer from a first session management entity to a second session management entity in a mobile communication system is provided, wherein the context transfer concerns a data session associated with a User Equipment, UE, wherein the data session is handled by the first session management entity via a first gateway entity and wherein, after the context transfer, the data session is to be handled by the second session management entity via a second gateway entity. A method implementation of the technique is performed by the second session management entity and comprises, while the UE is in an inactive state, triggering (S302) sending, to the second gateway entity, a session establishment request to establish a new session handling the data session via the second gateway entity, and triggering (S304) providing, to the second gateway entity, an old Internet Protocol, IP, address assigned to the UE as part of an old session handling the data session via the first gateway entity, requesting the second gateway entity to assign the old IP address to the UE as part of the new session, besides a new IP address assigned to the UE as part of the new session, and, when the UE enters an active state from the inactive state, triggering (S306) providing the new IP address to the UE.

The present disclosure provides techniques for migrating an integrated access and backhaul (IAB) node from a source centralized unit (CU) to a target IAB-donor CU of a base station. Features of the present disclosure achieve such migration by configuring an IAB-distributed unit (IAB-DU) to establish an Fl connection (Fl-C) with the target IAB-donor CU via a source path prior to occurrence of a user equipment (UE) context transfer. To this end, the source IAB-donor CU can initiate Fl-C establishment between the IAB node DU and the target IAB-donor CU. The source IAB-donor CU can do so by acting as or appearing as an IAB node DU proxy for the target IAB-donor CU. At the same time, the source IAB-donor CU can act as or appear as a target IAB-donor CU proxy for the IAB node DU.

A link handover method and apparatus, a device, and a storage medium, relating to the technical field of communications. The method comprises: a first AP sends first information to a second AP, wherein the first information is used for indicating context transfer content between the first AP and a STA, a link has been established between the STA and the first AP, and the second AP is a target AP for link handover of the STA (310). The first AP may indicate, to the second AP, context transfer content between the first AP and the STA, so that the second AP may perform data transmission with the STA on the basis of the context transfer content, thereby ensuring the stability of data transmission of the STA during a link handover process, avoiding data loss.

A non-AP STA transmits context information to a source AP which transfers the context information to target APs to improve seamless roaming performance when the non-AP STA roams to a TAP. The context information shared with the APs not only include context items describing features supported by the non-AP STA and the SAP, but also context items describing features not supported by the SAP although supported by the non-AP STA. This allows all the non-AP STA's supported features to be transferred to the TAPs. The context items may be 802.11 elements arranged into elements compatible to both the transmitter and receiver stations and elements not compatible with one of both stations. A reorganization of the compatible and incompatible elements is provided by each receiver station when transferring received context information of the non-AP STA to another AP. A dedicated signalling is provided to identify the elements including context information.

A station (STA) receives from a first access point (AP) a first frame indicating a target wake time (TWT) service period (SP) for the STA. The STA transmits to the first AP a second frame comprising: a first indication of a transition from the first AP to a second AP; and a second indication of whether the STA accepts modification of the TWT SP after transitioning from the first AP to the second AP. The STA receives from the first AP a third frame in response to the second frame. In another aspect, the STA transmits to the first AP a first frame a first list of streams, established between the STA and the first AP, for which the STA requests resource prioritization from the second AP. The STA receives from the first AP a second frame indicating a second list of streams that are accepted by the second AP.

Methods and apparatuses for transferred content notification in next generation WLANs. A method of wireless communication performed by a station (STA) includes determining to roam from a first access point (AP) to a second AP. The method further includes receiving a context transfer notification associated with a context that has been set up with the first AP. The context transfer notification indicates whether the context has been transferred from the first AP to the second AP.

Methods and apparatuses for sequence number (SN) context transfer for next generation Wireless Local Area Networks (WLANs). A method of wireless communication performed by a station (STA) includes initiating a roaming procedure for roaming from a first access point (AP) to a second AP, wherein during the roaming procedure, data of the STA is received by the first AP and a distribution system (DS) remapping procedure is initiated; initiating an SN advancement procedure associated with traffic identifier (TID) information of the data of the STA, the SN advancement procedure for incrementing a value of a SN; and obtaining a value of a first SN at the second AP, where the value of the first SN at the second AP is based on a latest SN of a plurality of SNs at the first AP when the roaming procedure is initiated.