RADIO LINK CONTROL UNACKNOWLEDGED MODE RECEIVE TECHNIQUES

    公开(公告)号:US20200213242A1

    公开(公告)日:2020-07-02

    申请号:US16638097

    申请日:2018-08-09

    Abstract: A wireless device may receive a radio link control (RLC) protocol data unit (PDU) from a lower layer (e.g., from a media access control (MAC) layer) when processing communications (e.g., packets) received from another wireless device. The receiving wireless device may identify that the PDU is an RLC service data unit (SDU) segment based at least in part on an indication corresponding to a sequence number associated with the RLC SDU segment. The receiving wireless device may then determine that the RLC SDU segment is received out of order based on previously received PDUs or previously received RLC SDU segments, and initiate a reassembly timer based on the out of order determination for the RLC SDUs. If the remaining RLC SDU segments (e.g., that complete the RLC SDU) are received before reassembly timer expires, the wireless device may reassemble the RLC SDU to be passed to a higher layer.

    BUILDING HS-SICHS IN MULTI-CARRIER TD-HSDPA SYSTEMS
    22.
    发明申请
    BUILDING HS-SICHS IN MULTI-CARRIER TD-HSDPA SYSTEMS 审中-公开
    在多载波TD-HSDPA系统中构建HS-SICHS

    公开(公告)号:US20150139102A1

    公开(公告)日:2015-05-21

    申请号:US14403809

    申请日:2012-07-02

    CPC classification number: H04L5/0057 H04B1/707 H04B2201/70722 H04L5/0055

    Abstract: In High-Speed Downlink Packet Access (HSDPA) communications in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system (called TD-HSDPA), the payload of two High-Speed Shared Information Channels (HS-SICHs) may be bundled into one HS-SICH channel by reusing the unused uplink synchronization shift (SS) for power control purposes. Thus, the HS-SICH spreading factor (SF) 16 code channel overhead may be reduced by 50%.

    Abstract translation: 在时分同步码分多址(TD-SCDMA)系统(称为TD-HSDPA)中的高速下行链路分组接入(HSDPA)通信中,两个高速共享信道(HS-SICH)的有效载荷可以是 通过重新使用未使用的上行链路同步移位(SS)来进行功率控制,将其捆绑成一个HS-SICH信道。 因此,HS-SICH扩展因子(SF)16码信道开销可以减少50%。

    Random access procedure
    23.
    发明授权

    公开(公告)号:US12284690B2

    公开(公告)日:2025-04-22

    申请号:US17593522

    申请日:2020-04-08

    Abstract: Some techniques and apparatuses described herein provide an indication of a result of decoding a two-step random access channel (RACH) message and an action to be performed by a user equipment (UE). For example, some techniques and apparatuses described herein may provide the indication using a UE contention resolution identity-based approach, wherein the contention resolution identity of the UE may be provided in a random access response. Some techniques and apparatuses described herein may use a fallback indicator that indicates the result of decoding and/or the action to be performed. Some techniques and apparatuses described herein may use a random access response (RAR) subheader that selectively omits a random access preamble identifier based at least in part on the result of decoding and/or the action to be performed.

    Small data transmissions in an inactive state to disaggregated base stations

    公开(公告)号:US12213208B2

    公开(公告)日:2025-01-28

    申请号:US17760225

    申请日:2020-03-12

    Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may directly send small data to a disaggregated base station without performing a random access procedure. The CU-CP may provide a list of routing identifiers and corresponding data resource bearers (DRBs) to a distributed unit (DU) and the DU may transmit a connection release message to the UE. The connection release message may include the list of routing identifiers and the list of DRB identifiers. The connection release message may also include a downlink monitoring timer. The UE may identify data for an uplink transmission and a DRB associated with that data. The UE may transmit a packet with the data and the routing identifiers to a DU, which may derive downlink address information from the routing identifiers and forward the data to a CU-UP of the aggregated base station.

    Transmission configuration indicator state activation for multiple transmission reception points

    公开(公告)号:US12207274B2

    公开(公告)日:2025-01-21

    申请号:US17759970

    申请日:2021-01-13

    Abstract: Methods, systems, and devices for signaling for transmission configuration indication (TCI) state activation for multiple transmission reception points are described. A user equipment (UE) may receive at least one control message indicating a first set of beam configurations associated with a first downlink shared channel from a first transmission reception point (TRP) and a second set of beam configurations associated with a second downlink shared channel from a second TRP. The UE may receive downlink control information (DCI) from the first and second TRPs indicating a first beam configuration of the first set of beam configurations and a second beam configuration of the second set of beam configurations, respectively. The UE may subsequently decode a first downlink transmission from the first downlink shared channel according to the first beam configuration and a second downlink transmission from the second downlink shared channel according to the second beam configuration.

    Power control for hybrid automatic repeat request feedback signal in random access

    公开(公告)号:US12177786B2

    公开(公告)日:2024-12-24

    申请号:US17640250

    申请日:2019-10-03

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a response message associated with a random access message, wherein the response message includes an identifier of the UE; select a format of an uplink channel or an uplink signal for acknowledging successful decoding of the response message; determine a transmit power for hybrid automatic repeat request (HARQ) acknowledgment (ACK) information based at least in part on at least one of: a message type of the response message, a mode of random access associated with the random access message, a power control configuration used by a previous transmission of the random access message, or the format of the uplink channel or the uplink signal; and transmit the HARQ ACK information using a power control procedure based at least in part on the transmit power. Numerous other aspects are provided.

    Unified approach to random access channel partitioning and indication

    公开(公告)号:US11963234B2

    公开(公告)日:2024-04-16

    申请号:US17823908

    申请日:2022-08-31

    CPC classification number: H04W74/0833 H04W74/002

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, information that configures multiple random access channel (RACH) partitions, wherein the multiple RACH partitions are each associated with a respective combination of one or more RACH features. The UE may select, from the multiple RACH partitions, a RACH partition based at least in part on the UE satisfying one or more criteria for the combination of one or more RACH features associated with the RACH partition. The UE may transmit, to the base station, a preamble on physical RACH (PRACH) resources associated with the RACH partition to initiate a RACH procedure supporting the combination of one or more RACH features associated with the RACH partition. Numerous other aspects are described.

    Multiple configured grant small data transmission configurations

    公开(公告)号:US11877298B2

    公开(公告)日:2024-01-16

    申请号:US18165298

    申请日:2023-02-06

    CPC classification number: H04W72/23 H04W8/24 H04W76/27

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a capability message indicating support for multiple configured grant small data transmission (CG-SDT) configurations and may receive one or more downlink messages that collectively indicate a downlink bandwidth part (BWP), an uplink BWP and a set of CG-SDT configurations based on transmitting the capability message. Each CG-SDT configuration may be associated with respective time and frequency resources for use in one or more CG-SDTs. The UE may transition out of a radio resource control (RRC) connected state based on receiving the one or more downlink messages. The UE may transmit an initial CG-SDT that includes a common control channel (CCCH) message using time and frequency resources associated with one or more of the set of CG-SDT configurations based on comparing the respective time and frequency resources associated with the each of the CG-SDT configurations.

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