Search

US-20260129665-A1 - Access Procedure Resource Configuration

US20260129665A1US 20260129665 A1US20260129665 A1US 20260129665A1US-20260129665-A1

Abstract

A base station and/or a wireless device may communicate for an access procedure. One or more uplink channel resources of an access procedure of a first type may be reserved and/or guaranteed for one or more uplink transmissions. One or more downlink symbols may not be configured for the one or more uplink channel resources.

Inventors

  • Nazanin Rastegardoost
  • Esmael Hejazi Dinan
  • Hyoungsuk Jeon
  • Yunjung Yi

Assignees

  • COMCAST CABLE COMMUNICATIONS, LLC

Dates

Publication Date
20260507
Application Date
20260105

Claims (20)

  1. 1 . A base station comprising: one or more processors; and memory storing instructions that, when executed by the one or more processors, configure the base station to: transmit, to one or more wireless devices, one or more configuration parameters indicating a plurality of physical uplink shared channel (PUSCH) occasion groups, each of the plurality of PUSCH occasion groups comprising a plurality of PUSCH occasions associated with transport block repetition; and receive, via a valid PUSCH occasion group selected from the plurality of PUSCH occasion groups based on a quantity of valid PUSCH occasions in the PUSCH occasion group, one or more repetitions of a transport block.
  2. 2 . The base station of claim 1 , wherein the one or more configuration parameters comprise one or more parameters indicating frequencies of a plurality of PUSCH resources.
  3. 3 . The base station of claim 1 , wherein the plurality of PUSCH occasion groups comprise: a plurality of first PUSCH resources associated with a first type of access; and a plurality of second PUSCH resources associated with a second type of access.
  4. 4 . The base station of claim 1 , wherein the instructions, when executed by the one or more processors, configure the base station to: transmit one or more second configuration parameters indicating one or more slot formats of a plurality of symbols associated with the plurality of PUSCH occasion groups, wherein a slot format, of the one or more slot formats, indicates a transmission direction comprising at least one of: uplink; downlink; or flexible, and wherein a flexible transmission direction is capable of uplink and downlink.
  5. 5 . The base station of claim 1 , wherein the instructions, when executed by the one or more processors, configure the base station to: transmit one or more second configuration parameters indicating one or more slot formats of a plurality of symbols associated with the plurality of PUSCH occasion groups, wherein one or more slot formats associated with the valid PUSCH occasion group comprises one or more non-downlink symbols, and wherein a quantity of the one or more non-downlink symbols is greater or equal to a quantity of repetitions.
  6. 6 . The base station of claim 1 , wherein the quantity of valid PUSCH occasions in the PUSCH occasion group comprises at least two valid PUSCH occasions.
  7. 7 . One or more non-transitory computer-readable media storing instructions that, when executed, cause: transmitting, to one or more wireless devices, one or more configuration parameters indicating a plurality of physical uplink shared channel (PUSCH) occasion groups, each of the plurality of PUSCH occasion groups comprising a plurality of PUSCH occasions associated with transport block repetition; and receiving, via a valid PUSCH occasion group selected from the plurality of PUSCH occasion groups based on a quantity of valid PUSCH occasions in the PUSCH occasion group, one or more repetitions of a transport block.
  8. 8 . The one or more non-transitory computer-readable media of claim 7 , wherein the one or more configuration parameters comprise one or more parameters indicating frequencies of a plurality of PUSCH resources.
  9. 9 . The one or more non-transitory computer-readable media of claim 7 , wherein the plurality of PUSCH occasion groups comprise: a plurality of first PUSCH resources associated with a first type of access; and a plurality of second PUSCH resources associated with a second type of access.
  10. 10 . The one or more non-transitory computer-readable media of claim 7 , wherein the instructions, when executed, cause: transmitting one or more second configuration parameters indicating one or more slot formats of a plurality of symbols associated with the plurality of PUSCH occasion groups, wherein a slot format, of the one or more slot formats, indicates a transmission direction comprising at least one of: uplink; downlink; or flexible, and wherein a flexible transmission direction is capable of uplink and downlink.
  11. 11 . The one or more non-transitory computer-readable media of claim 7 , wherein the instructions, when executed, cause: transmitting one or more second configuration parameters indicating one or more slot formats of a plurality of symbols associated with the plurality of PUSCH occasion groups, wherein one or more slot formats associated with the valid PUSCH occasion group comprises one or more non-downlink symbols, and wherein a quantity of the one or more non-downlink symbols is greater or equal to a quantity of repetitions.
  12. 12 . The one or more non-transitory computer-readable media of claim 7 , wherein the quantity of valid PUSCH occasions in the PUSCH occasion group comprises at least two valid PUSCH occasions.
  13. 13 . A method comprising: receiving, by a wireless device and from a base station, one or more configuration parameters indicating a plurality of physical uplink shared channel (PUSCH) occasion groups; and transmitting one or more transport blocks via a plurality of PUSCH occasions in a PUSCH occasion group, of the plurality of PUSCH occasion groups, that is selected based on a quantity of valid PUSCH occasions in the PUSCH occasion group.
  14. 14 . The method of claim 13 , wherein one or more slots associated with the PUSCH occasion group are flexible symbols, uplink symbols, or a combination of flexible symbols and uplink symbols, and wherein a quantity of the flexible symbols and uplink symbols is greater or equal to a threshold.
  15. 15 . The method of claim 13 , wherein the plurality of PUSCH occasion groups are associated with a type of access, and wherein the type of access comprises at least one of: a two-step random access procedure; a random access channel (RACH)-less procedure; or a RACH-less handover.
  16. 16 . The method of claim 13 , further comprising receiving one or more radio resource control (RRC) configuration parameters indicating: a first quantity of downlink slots in a period; a second quantity of downlink symbols in the period; a third quantity of uplink symbols in the period; and a fourth quantity of uplink slots in the period, wherein one or more slots associated with the valid PUSCH occasions are valid uplink channel resources.
  17. 17 . The method of claim 13 , further comprising receiving downlink control information comprising a slot format indicator indicating a slot format of one or more slots associated with a plurality of uplink channel resources of the plurality of PUSCH occasions.
  18. 18 . The method of claim 13 , wherein the quantity of valid PUSCH occasions in the PUSCH occasion group comprises at least two valid PUSCH occasions.
  19. 19 . A wireless device comprising: one or more processors; and memory storing instructions that, when executed by the one or more processors, configure the wireless device to: receive, from a base station, one or more configuration parameters indicating a plurality of physical uplink shared channel (PUSCH) occasion groups; and transmit one or more transport blocks via a plurality of PUSCH occasions in a PUSCH occasion group, of the plurality of PUSCH occasion groups, that is selected based on a quantity of valid PUSCH occasions in the PUSCH occasion group.
  20. 20 . The wireless device of claim 19 , wherein one or more slots associated with the PUSCH occasion group are flexible symbols, uplink symbols, or a combination of flexible symbols and uplink symbols, and wherein a quantity of the flexible symbols and uplink symbols is greater or equal to a threshold.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of and claims priority to U.S. patent application Ser. No. 16/994,288, filed Aug. 14, 2020, which claims the benefit of U.S. Provisional Application No. 62/886,656, filed on Aug. 14, 2019, each of which is hereby incorporated by reference in its entirety. BACKGROUND A random access procedure is used to set up a connection between a wireless device and a base station. The base station and the wireless device exchange communications for the random access procedure. SUMMARY The following summary presents a simplified summary of certain features. The summary is not an extensive overview and is not intended to identify key or critical elements. A wireless device and a base station may communicate for an access procedure. An access procedure of a first type may be configured to expedite the access process in comparison with an access procedure of a second type. The access procedure of the first type may transmit one or more uplink channel data messages earlier than the access procedure of the second type. The transmission of the one or more uplink channel data may fail, for example, if one or more uplink channel resources are not guaranteed. The failure of the transmission of the one or more uplink channel data may cause a fallback to the access procedure of the second type and/or may lead to undesirable results such as increased latency, battery power overuse, misalignment, etc. The one or more uplink channel resources may be reserved/guaranteed by preventing downlink symbols. At least a portion of a plurality of uplink channel resources may be reserved and/or guaranteed (e.g., based on one or more criteria), for example, in order to avoid resource configuration inflexibility that may be caused by reserving and/or guaranteeing more than an adequate amount of uplink channel resources. Various examples described herein may enable efficient control signaling and/or efficient resource management for one or more access procedures. These and other features and advantages are described in greater detail below. BRIEF DESCRIPTION OF THE DRAWINGS Some features are shown by way of example, and not by limitation, in the accompanying drawings In the drawings, like numerals reference similar elements. FIG. 1A and FIG. 1B show example communication networks. FIG. 2A shows an example user plane. FIG. 2B shows an example control plane configuration. FIG. 3 shows example of protocol layers. FIG. 4A shows an example downlink data flow for a user plane configuration. FIG. 4B shows an example format of a Medium Access Control (MAC) subheader in a MAC Protocol Data Unit (PDU). FIG. 5A shows an example mapping for downlink channels. FIG. 5B shows an example mapping for uplink channels. FIG. 6 shows example radio resource control (RRC) states and RRC state transitions. FIG. 7 shows an example configuration of a frame. FIG. 8 shows an example resource configuration of one or more carriers. FIG. 9 shows an example configuration of bandwidth parts (BWPs). FIG. 10A shows example carrier aggregation configurations based on component carriers. FIG. 10B shows example group of cells. FIG. 11A shows an example mapping of one or more synchronization signal/physical broadcast channel (SS/PBCH) blocks. FIG. 11B shows an example mapping of one or more channel state information reference signals (CSI-RSs). FIG. 12A shows examples of downlink beam management procedures. FIG. 12B shows examples of uplink beam management procedures. FIG. 13A shows an example four-step random access procedure. FIG. 13B shows an example two-step random access procedure. FIG. 13C shows an example two-step random access procedure. FIG. 14A shows an example of control resource set (CORESET) configurations. FIG. 14B shows an example of a control channel element to resource element group (CCE-to-REG) mapping. FIG. 15A shows an example of communications between a wireless device and a base station. FIG. 15B shows example elements of a computing device that may be used to implement any of the various devices described herein FIG. 16A, FIG. 16B, FIG. 16C, and FIG. 16D show examples of uplink and downlink signal transmission. FIG. 17 shows an example of radio resource allocation for a random access procedure. FIG. 18 shows an example of generating transmission bits from coded bits based on redundancy versions. FIG. 19A and FIG. 19B show examples of applying redundancy versions. FIG. 20 shows an example of a slot format configuration using one or more patterns. FIG. 21A. FIG. 21B, and FIG. 21C show example slot formats. FIG. 22A and FIG. 22B show example slot format combinations. FIG. 23 shows example slot formats for a slot. FIG. 24A and FIG. 24B show example communications based on a slot format determination. FIG. 24C shows an example resource configuration. FIG. 25A shows example communications based on a slot format determination. FIG. 25B shows an example resource configuration. FIG. 26A and FIG. 26B