# US 11,452,168 B2 · Resource management, access control and mobility for grant-free uplink transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,452,168 B2 - Document ID: US11452168B2 - Status: Granted - Kind: B2 - Application number: 16/583,016 - Filed: 2019-09-25 - Published: 2020-04-30 - Granted: 2022-09-20 - Earliest claimed: 2018-09-26 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Ayan Sengupta; Umesh Phuyal; Alberto Rico Alvarino; Le Liu - Web page: https://patentgrep.com/patent/US11452168B2 ## CPC - H04W 76/36: for reassigning the resources associated with the released connections - H04J 13/0062: {Zadoff-Chu} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/10: with dynamo-electric generation of carriers; with mechanical filters or demodulators - H04W 68/005: {Transmission of information for alerting of incoming communication} - H04W 68/02: Arrangements for increasing efficiency of notification or paging channel - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 72/51: based on terminal or device properties - H04W 74/02: Hybrid access - H04W 74/08: Non-scheduled access, e.g. ALOHA (hybrid access H04W74/02) - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 76/30: Connection release - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 36/0055: {Transmission or use of information for re-establishing the radio link} - H04W 36/08: Reselecting an access point - H04W 36/14: Reselecting a network or an air interface - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a connection release message, the connection release message including a resource indicator indicating that a set of resources are to be used for grant-free uplink transmissions by the UE while operating in a disconnected state. The UE may transition from a connected state to a disconnected state based at least in part on the connection release message. The UE may perform, while operating in the disconnected state, the grant-free uplink transmissions using the set of resources. ## Claims ### Claim 1 A method for wireless communication at a user equipment (UE), comprising: receiving a connection release message from a base station, the connection release message including a resource indicator indicating that a set of resources are to be used for grant-free uplink transmissions by the UE while operating in a disconnected state; transitioning from a connected state to the disconnected state based at least in part on the connection release message; performing, while operating in the disconnected state, the grant-free uplink transmissions using the set of resources; receiving, from the base station, a transition request message indicating a request for the UE to transition to the connected state directly from the disconnected state; and transitioning to the connected state directly from the disconnected state based at least in part on the transition request message. ### Claim 2 (depends on 1) The method of claim 1, further comprising: skipping a random access procedure when transitioning back to the connected state directly from the disconnected state. ### Claim 3 (depends on 1) The method of claim 1, further comprising: retaining the set of resources for use while operating in the connected state. ### Claim 4 A method for wireless communication at a base station, comprising: configuring a set of resources for a user equipment (UE) to use for grant-free uplink transmissions while the UE is operating in a disconnected state; transmitting a connection release message that includes a resource indicator to the UE, the resource indicator indicating the set of resources configured for the UE, the connection release message transitioning the UE from a connected state to the disconnected state; receiving, while the UE is operating in the disconnected state, the grant-free uplink transmissions from the UE using the set of resources configured for the UE; and transmitting, to the UE, a transition request message indicating a request for the UE to transition to the connected state directly from the disconnected state. ### Claim 5 (depends on 4) The method of claim 4, further comprising: transmitting a release message to the UE de-configuring the set of resources. ### Claim 6 (depends on 5) The method of claim 5, further comprising: determining that the UE has transitioned from the disconnected state to the connected state, wherein the release message is transmitted based at least in part on the determining. ### Claim 7 (depends on 5) The method of claim 5, further comprising: determining that a paging message is to be transmitted to the UE, wherein the release message is transmitted based at least in part on the determining and the paging message comprises the release message. ### Claim 8 (depends on 7) The method of claim 7, wherein the paging message comprises a resource release cause. ### Claim 9 (depends on 4) The method of claim 4, wherein the transition request message comprises an grant-free uplink transmission acknowledgement message. ### Claim 10 An apparatus for wireless communication at a user equipment (UE), comprising: a processor, memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the UE to: receive a connection release message from a base station, the connection release message including a resource indicator indicating that a set of resources are to be used for grant-free uplink transmissions by the UE while operating in a disconnected state; transition from a connected state to the disconnected state based at least in part on the connection release message; perform, while operating in the disconnected state, the grant-free uplink transmissions using the set of resources; receive, from the base station, a transition request message indicating a request for the UE to transition to the connected state directly from the disconnected state; and transition to the connected state directly from the disconnected state based at least in part on the transition request message. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the instructions are further executable by the processor to cause the UE to: skip a random access procedure when transitioning back to the connected state directly from the disconnected state. ### Claim 12 (depends on 10) The apparatus of claim 10, wherein the instructions are further executable by the processor to cause the UE to: retaining the set of resources for use while operating in the connected state. ### Claim 13 An apparatus for wireless communication at a base station, comprising: a processor, memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the base station to: configure a set of resources for a user equipment (UE) to use for grant-free uplink transmissions while the UE is operating in a disconnected state; transmit a connection release message that includes a resource indicator to the UE, the resource indicator indicating the set of resources configured for the UE, the connection release message transitioning the UE from a connected state to the disconnected state; receive, while the UE is operating in the disconnected state, the grant-free uplink transmissions from the UE using the set of resources configured for the UE; and transmit, to the UE, a transition request message indicating a request for the UE to transition to the connected state directly from the disconnected state. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the instructions are further executable by the processor to cause the base station to: transmit a release message to the UE de-configuring the set of resources. ### Claim 15 (depends on 14) The apparatus of claim 14, wherein the instructions are further executable by the processor to cause the base station to: determine that the UE has transitioned from the disconnected state to the connected state, wherein the release message is transmitted based at least in part on the determining. ### Claim 16 (depends on 14) The apparatus of claim 14, wherein the instructions are further executable by the processor to cause the base station to: determine that a paging message is to be transmitted to the UE, wherein the release message is transmitted based at least in part on the determining and the paging message comprises the release message. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the paging message comprises a resource release cause. ### Claim 18 (depends on 13) The apparatus of claim 13, wherein the transition request message comprises an grant-free uplink transmission acknowledgement message. ### Claim 19 An apparatus for wireless communication at a user equipment (UE), comprising: means for receiving a connection release message from a base station, the connection release message including a resource indicator indicating that a set of resources are to be used for grant-free uplink transmissions by the UE while operating in a disconnected state; means for transitioning from a connected state to the disconnected state based at least in part on the connection release message; means for performing, while operating in the disconnected state, the grant-free uplink transmissions using the set of resources; means for receiving, from the base station, a transition request message indicating a request for the UE to transition to the connected state directly from the disconnected state; and means for transitioning to the connected state directly from the disconnected state based at least in part on the transition request message. ### Claim 20 An apparatus for wireless communication at a base station, comprising: means for configuring a set of resources for a user equipment (UE) to use for grant-free uplink transmissions while the UE is operating in a disconnected state; means for transmitting a connection release message that includes a resource indicator to the UE, the resource indicator indicating the set of resources configured for the UE, the connection release message transitioning the UE from a connected state to the disconnected state; means for receiving, while the UE is operating in the disconnected state, the grant-free uplink transmissions from the UE using the set of resources configured for the UE; and means for transmitting, to the UE, a transition request message indicating a request for the UE to transition to the connected state directly from the disconnected state. ### Claim 21 A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by a processor to: receive a connection release message from a base station, the connection release message including a resource indicator indicating that a set of resources are to be used for grant-free uplink transmissions by the UE while operating in a disconnected state; transition from a connected state to the disconnected state based at least in part on the connection release message; perform, while operating in the disconnected state, the grant-free uplink transmissions using the set of resources; receive, from the base station, a transition request message indicating a request for the UE to transition to the connected state directly from the disconnected state; and transition to the connected state directly from the disconnected state based at least in part on the transition request message. ### Claim 22 A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to: configure a set of resources for a user equipment (UE) to use for grant-free uplink transmissions while the UE is operating in a disconnected state; transmit a connection release message that includes a resource indicator to the UE, the resource indicator indicating the set of resources configured for the UE, the connection release message transitioning the UE from a connected state to the disconnected state; receive, while the UE is operating in the disconnected state, the grant-free uplink transmissions from the UE using the set of resources configured for the UE; and transmit, to the UE, a transition request message indicating a request for the UE to transition to the connected state directly from the disconnected state.