WO2021016980A1 - Techniques d'activation d'états d'indication de configuration de transmission dans des communications sans fil - Google Patents

Techniques d'activation d'états d'indication de configuration de transmission dans des communications sans fil Download PDF

Info

Publication number
WO2021016980A1
WO2021016980A1 PCT/CN2019/098823 CN2019098823W WO2021016980A1 WO 2021016980 A1 WO2021016980 A1 WO 2021016980A1 CN 2019098823 W CN2019098823 W CN 2019098823W WO 2021016980 A1 WO2021016980 A1 WO 2021016980A1
Authority
WO
WIPO (PCT)
Prior art keywords
codepoint
control element
tci state
codepoints
tci
Prior art date
Application number
PCT/CN2019/098823
Other languages
English (en)
Inventor
Ruiming Zheng
Linhai He
Mostafa KHOSHNEVISAN
Xiaoxia Zhang
Jing Sun
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2019/098823 priority Critical patent/WO2021016980A1/fr
Publication of WO2021016980A1 publication Critical patent/WO2021016980A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0026—Division using four or more dimensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences

Definitions

  • aspects of the present disclosure relate generally to wireless communication systems, and more particularly, to techniques for activating multiple transmission configuration indication states.
  • Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) . Examples of such multiple-access systems include code-division multiple access (CDMA) systems, time-division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, and orthogonal frequency-division multiple access (OFDMA) systems, and single-carrier frequency division multiple access (SC-FDMA) systems.
  • CDMA code-division multiple access
  • TDMA time-division multiple access
  • FDMA frequency-division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • SC-FDMA single-carrier frequency division multiple access
  • 5G communications technology can include: enhanced mobile broadband addressing human-centric use cases for access to multimedia content, services and data; ultra-reliable-low latency communications (URLLC) with certain specifications for latency and reliability; and massive machine type communications, which can allow a very large number of connected devices and transmission of a relatively low volume of non-delay-sensitive information.
  • URLLC ultra-reliable-low latency communications
  • transmission configuration indication (TCI) state can be activated for use in transmitting communications.
  • a TCI state can correspond to a reference signal and associated quasi-colocation (QCL) types, which can indicate a beam used for transmitting the communications.
  • QCL quasi-colocation
  • a base station can indicate which of multiple possible TCI states are active for the base station, and the base station can select a TCI state to use in transmitting downlink communications.
  • a user equipment (UE) can determine the TCI state used by the base station based on a codepoint indication in downlink control information (DCI) received from the base station.
  • DCI downlink control information
  • a method for wireless communication includes receiving a first control element indicating which of multiple configured transmission configuration indication (TCI) states are active TCI states for use in transmitting downlink communications, receiving a second control element indicating multiple active TCI states for at least one codepoint of multiple codepoints, wherein each of the multiple active TCI states for the at least one codepoint correspond to each of multiple transmission reception points (TRPs) , receiving downlink control information (DCI) for the downlink communications from a TRP of the multiple TRPs, wherein the DCI indicates a codepoint for a TCI state corresponding to the downlink communications from the at least one TRP, determining, based at least in part on and the codepoint and the second control element indicating multiple active TCI states for the codepoint, the TCI state corresponding to the downlink communications, and receiving, based on the TCI state, the downlink communications from the TRP.
  • TCI transmission configuration indication
  • One or more of the above examples can further include wherein the second control element includes indications for each of the multiple codepoints indicating whether multiple active TCI states are configured.
  • One or more of the above examples can further include wherein the second control element includes TCI state indices for the active TCI states for each of the multiple codepoints, and wherein the indications for each of the multiple codepoints indicate whether the second control element indicates the multiple active TCI state indices for a corresponding codepoint of the multiple codepoints.
  • TCI state indices indicate ordinal positions of activated TCI states indicated in the first control element.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices for the corresponding codepoint by indicating ordinal positions of activated TCI states, as indicated in the first control element, in corresponding index values in a single octet.
  • One or more of the above examples can further include wherein determining the TCI state corresponding to the downlink communications is based on determining that the indication that corresponds to the codepoint indicates that multiple active TCI states are configured for the codepoint.
  • One or more of the above examples can further include wherein determining the TCI state corresponding to the downlink communications is further based on determining, based on the codepoint, the single octet that corresponds to the codepoint and an index value in the single octet, wherein the index value indicates an ordinal position for the TCI state.
  • One or more of the above examples can further include wherein the single octet further includes one or more reserved values.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices by indicating ordinal positions of a first activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a first set of octets and indicating ordinal positions of a second activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a second set of octets.
  • One or more of the above examples can further include wherein the indications for each of the multiple codepoints indicate whether the second set of octets includes a second activated TCI state for a corresponding codepoint.
  • One or more of the above examples can further include wherein determining the TCI state corresponding to the downlink communications is based on determining that the indication that corresponds to the codepoint indicates that multiple active TCI states are configured for the codepoint.
  • One or more of the above examples can further include wherein determining the TCI state corresponding to the downlink communications is further based on determining, based on the indications and the codepoint, a portion of the second set of octets that corresponds to the codepoint and an index value in the portion of the second set of octets, wherein the index value indicates an ordinal position for the TCI state.
  • One or more of the above examples can further include wherein each of the first set of octets and the second set of octets include one or more reserved values.
  • a method for wireless communication includes transmitting a first control element indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications, transmitting a second control element indicating multiple active TCI states for at least one codepoint of multiple codepoints, wherein each of the multiple active TCI states for the at least one codepoint correspond to each of multiple transmission reception points (TRPs) , transmitting DCI for the downlink communications, wherein the DCI indicates a codepoint for a TCI state corresponding to the downlink communications, and transmitting, based on the TCI state, the downlink communications.
  • TRPs transmission reception points
  • One or more of the above examples can further include wherein the second control element includes indications for each of the multiple codepoints indicating whether multiple active TCI states are configured.
  • One or more of the above examples can further include wherein the second control element includes TCI state indices for the active TCI states for each of the multiple codepoints, and wherein the indications for each of the multiple codepoints indicate whether the second control element indicates the multiple active TCI state indices for a corresponding codepoint of the multiple codepoints.
  • TCI state indices indicate ordinal positions of activated TCI states indicated in the first control element.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices for the corresponding codepoint by indicating ordinal positions of activated TCI states, as indicated in the first control element, in corresponding index values in a single octet.
  • One or more of the above examples can further include wherein the single octet further includes one or more reserved values.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices by indicating ordinal positions of a first activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a first set of octets and indicating ordinal positions of a second activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a second set of octets.
  • One or more of the above examples can further include wherein the indications for each of the multiple codepoints indicate whether the second set of octets includes a second activated TCI state for a corresponding codepoint.
  • One or more of the above examples can further include wherein each of the first set of octets and the second set of octets include one or more reserved values.
  • an apparatus for wireless communication includes a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled with the transceiver and the memory.
  • the one or more processors are configured to receive a first control element indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications, receive a second control element indicating multiple active TCI states for at least one codepoint of multiple codepoints, wherein each of the multiple active TCI states for the at least one codepoint correspond to each of multiple transmission reception points (TRPs) , receive DCI for the downlink communications from a TRP of the multiple TRPs, wherein the DCI indicates a codepoint for a TCI state corresponding to the downlink communications from the at least one TRP, determine, based at least in part on and the codepoint and the second control element indicating multiple active TCI states for the codepoint, the TCI state corresponding to the downlink communications, and receive, based on the TCI state, the downlink communications from the T
  • One or more of the above examples can further include wherein the second control element includes indications for each of the multiple codepoints indicating whether multiple active TCI states are configured.
  • One or more of the above examples can further include wherein the second control element includes TCI state indices for the active TCI states for each of the multiple codepoints, and wherein the indications for each of the multiple codepoints indicate whether the second control element indicates the multiple active TCI state indices for a corresponding codepoint of the multiple codepoints.
  • TCI state indices indicate ordinal positions of activated TCI states indicated in the first control element.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices for the corresponding codepoint by indicating ordinal positions of activated TCI states, as indicated in the first control element, in corresponding index values in a single octet.
  • One or more of the above examples can further include wherein the one or more processors are configured to determine the TCI state corresponding to the downlink communications based on determining that the indication that corresponds to the codepoint indicates that multiple active TCI states are configured for the codepoint.
  • One or more of the above examples can further include wherein the one or more processors are configured to determine the TCI state corresponding to the downlink communications further based on determining, based on the codepoint, the single octet that corresponds to the codepoint and an index value in the single octet, wherein the index value indicates an ordinal position for the TCI state.
  • One or more of the above examples can further include wherein the single octet further includes one or more reserved values.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices by indicating ordinal positions of a first activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a first set of octets and indicating ordinal positions of a second activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a second set of octets.
  • One or more of the above examples can further include wherein the indications for each of the multiple codepoints indicate whether the second set of octets includes a second activated TCI state for a corresponding codepoint.
  • One or more of the above examples can further include wherein the one or more processors are configured to determine the TCI state corresponding to the downlink communications based on determining that the indication that corresponds to the codepoint indicates that multiple active TCI states are configured for the codepoint.
  • One or more of the above examples can further include wherein the one or more processors are configured to determine the TCI state corresponding to the downlink communications further based on determining, based on the indications and the codepoint, a portion of the second set of octets that corresponds to the codepoint and an index value in the portion of the second set of octets, wherein the index value indicates an ordinal position for the TCI state.
  • One or more of the above examples can further include wherein each of the first set of octets and the second set of octets include one or more reserved values.
  • an apparatus for wireless communication includes a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled with the transceiver and the memory.
  • the one or more processors are configured to transmit a first control element indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications, transmit a second control element indicating multiple active TCI states for at least one codepoint of multiple codepoints, wherein each of the multiple active TCI states for the at least one codepoint correspond to each of multiple TRPs, transmit DCI for the downlink communications, wherein the DCI indicates a codepoint for a TCI state corresponding to the downlink communications, and transmit, based on the TCI state, the downlink communications.
  • One or more of the above examples can further include wherein the second control element includes indications for each of the multiple codepoints indicating whether multiple active TCI states are configured.
  • One or more of the above examples can further include wherein the second control element includes TCI state indices for the active TCI states for each of the multiple codepoints, and wherein the indications for each of the multiple codepoints indicate whether the second control element indicates the multiple active TCI state indices for a corresponding codepoint of the multiple codepoints.
  • TCI state indices indicate ordinal positions of activated TCI states indicated in the first control element.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices for the corresponding codepoint by indicating ordinal positions of activated TCI states, as indicated in the first control element, in corresponding index values in a single octet.
  • One or more of the above examples can further include wherein the single octet further includes one or more reserved values.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices by indicating ordinal positions of a first activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a first set of octets and indicating ordinal positions of a second activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a second set of octets.
  • One or more of the above examples can further include wherein the indications for each of the multiple codepoints indicate whether the second set of octets includes a second activated TCI state for a corresponding codepoint.
  • One or more of the above examples can further include wherein each of the first set of octets and the second set of octets include one or more reserved values.
  • an apparatus for wireless communication includes means for receiving a first control element indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications, means for receiving a second control element indicating multiple active TCI states for at least one codepoint of multiple codepoints, wherein each of the multiple active TCI states for the at least one codepoint correspond to each of multiple TRPs, means for receiving DCI for the downlink communications from a TRP of the multiple TRPs, wherein the DCI indicates a codepoint for a TCI state corresponding to the downlink communications from the at least one TRP, means for determining, based at least in part on and the codepoint and the second control element indicating multiple active TCI states for the codepoint, the TCI state corresponding to the downlink communications, and means for receiving, based on the TCI state, the downlink communications from the TRP.
  • One or more of the above examples can further include wherein the second control element includes indications for each of the multiple codepoints indicating whether multiple active TCI states are configured.
  • One or more of the above examples can further include wherein the second control element includes TCI state indices for the active TCI states for each of the multiple codepoints, and wherein the indications for each of the multiple codepoints indicate whether the second control element indicates the multiple active TCI state indices for a corresponding codepoint of the multiple codepoints.
  • TCI state indices indicate ordinal positions of activated TCI states indicated in the first control element.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices for the corresponding codepoint by indicating ordinal positions of activated TCI states, as indicated in the first control element, in corresponding index values in a single octet.
  • One or more of the above examples can further include wherein the means for determining the TCI state corresponding to the downlink communications is based on determining that the indication that corresponds to the codepoint indicates that multiple active TCI states are configured for the codepoint.
  • One or more of the above examples can further include wherein the means for determining the TCI state corresponding to the downlink communications is further based on determining, based on the codepoint, the single octet that corresponds to the codepoint and an index value in the single octet, wherein the index value indicates an ordinal position for the TCI state.
  • One or more of the above examples can further include wherein the single octet further includes one or more reserved values.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices by indicating ordinal positions of a first activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a first set of octets and indicating ordinal positions of a second activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a second set of octets.
  • One or more of the above examples can further include wherein the indications for each of the multiple codepoints indicate whether the second set of octets includes a second activated TCI state for a corresponding codepoint.
  • One or more of the above examples can further include wherein the means for determining the TCI state corresponding to the downlink communications is based on determining that the indication that corresponds to the codepoint indicates that multiple active TCI states are configured for the codepoint.
  • One or more of the above examples can further include wherein the means for determining the TCI state corresponding to the downlink communications is further based on determining, based on the indications and the codepoint, a portion of the second set of octets that corresponds to the codepoint and an index value in the portion of the second set of octets, wherein the index value indicates an ordinal position for the TCI state.
  • One or more of the above examples can further include wherein each of the first set of octets and the second set of octets include one or more reserved values.
  • an apparatus for wireless communication includes means for transmitting a first control element indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications, means for transmitting a second control element indicating multiple active TCI states for at least one codepoint of multiple codepoints, wherein each of the multiple active TCI states for the at least one codepoint correspond to each of multiple TRPs, means for transmitting DCI for the downlink communications, wherein the DCI indicates a codepoint for a TCI state corresponding to the downlink communications, and means for transmitting, based on the TCI state, the downlink communications.
  • One or more of the above examples can further include wherein the second control element includes indications for each of the multiple codepoints indicating whether multiple active TCI states are configured.
  • One or more of the above examples can further include wherein the second control element includes TCI state indices for the active TCI states for each of the multiple codepoints, and wherein the indications for each of the multiple codepoints indicate whether the second control element indicates the multiple active TCI state indices for a corresponding codepoint of the multiple codepoints.
  • TCI state indices indicate ordinal positions of activated TCI states indicated in the first control element.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices for the corresponding codepoint by indicating ordinal positions of activated TCI states, as indicated in the first control element, in corresponding index values in a single octet.
  • One or more of the above examples can further include wherein the single octet further includes one or more reserved values.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices by indicating ordinal positions of a first activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a first set of octets and indicating ordinal positions of a second activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a second set of octets.
  • One or more of the above examples can further include wherein the indications for each of the multiple codepoints indicate whether the second set of octets includes a second activated TCI state for a corresponding codepoint.
  • One or more of the above examples can further include wherein each of the first set of octets and the second set of octets include one or more reserved values.
  • a computer-readable medium including code executable by one or more processors for wireless communications.
  • the code includes code for receiving a first control element indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications, receiving a second control element indicating multiple active TCI states for at least one codepoint of multiple codepoints, wherein each of the multiple active TCI states for the at least one codepoint correspond to each of multiple TRPs, receiving DCI for the downlink communications from a TRP of the multiple TRPs, wherein the DCI indicates a codepoint for a TCI state corresponding to the downlink communications from the at least one TRP, determining, based at least in part on and the codepoint and the second control element indicating multiple active TCI states for the codepoint, the TCI state corresponding to the downlink communications, and receiving, based on the TCI state, the downlink communications from the TRP.
  • One or more of the above examples can further include wherein the second control element includes indications for each of the multiple codepoints indicating whether multiple active TCI states are configured.
  • One or more of the above examples can further include wherein the second control element includes TCI state indices for the active TCI states for each of the multiple codepoints, and wherein the indications for each of the multiple codepoints indicate whether the second control element indicates the multiple active TCI state indices for a corresponding codepoint of the multiple codepoints.
  • TCI state indices indicate ordinal positions of activated TCI states indicated in the first control element.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices for the corresponding codepoint by indicating ordinal positions of activated TCI states, as indicated in the first control element, in corresponding index values in a single octet.
  • One or more of the above examples can further include wherein the code for determining the TCI state corresponding to the downlink communications is based on determining that the indication that corresponds to the codepoint indicates that multiple active TCI states are configured for the codepoint.
  • One or more of the above examples can further include wherein the code for determining the TCI state corresponding to the downlink communications is further based on determining, based on the codepoint, the single octet that corresponds to the codepoint and an index value in the single octet, wherein the index value indicates an ordinal position for the TCI state.
  • One or more of the above examples can further include wherein the single octet further includes one or more reserved values.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices by indicating ordinal positions of a first activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a first set of octets and indicating ordinal positions of a second activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a second set of octets.
  • One or more of the above examples can further include wherein the indications for each of the multiple codepoints indicate whether the second set of octets includes a second activated TCI state for a corresponding codepoint.
  • One or more of the above examples can further include wherein the code for determining the TCI state corresponding to the downlink communications is based on determining that the indication that corresponds to the codepoint indicates that multiple active TCI states are configured for the codepoint.
  • One or more of the above examples can further include wherein the code for determining the TCI state corresponding to the downlink communications is further based on determining, based on the indications and the codepoint, a portion of the second set of octets that corresponds to the codepoint and an index value in the portion of the second set of octets, wherein the index value indicates an ordinal position for the TCI state.
  • One or more of the above examples can further include wherein each of the first set of octets and the second set of octets include one or more reserved values.
  • a computer-readable medium including code executable by one or more processors for wireless communications.
  • the code includes code for transmitting a first control element indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications, transmitting a second control element indicating multiple active TCI states for at least one codepoint of multiple codepoints, wherein each of the multiple active TCI states for the at least one codepoint correspond to each of multiple TRPs, transmitting DCI for the downlink communications, wherein the DCI indicates a codepoint for a TCI state corresponding to the downlink communications, and transmitting, based on the TCI state, the downlink communications.
  • One or more of the above examples can further include wherein the second control element includes indications for each of the multiple codepoints indicating whether multiple active TCI states are configured.
  • One or more of the above examples can further include wherein the second control element includes TCI state indices for the active TCI states for each of the multiple codepoints, and wherein the indications for each of the multiple codepoints indicate whether the second control element indicates the multiple active TCI state indices for a corresponding codepoint of the multiple codepoints.
  • TCI state indices indicate ordinal positions of activated TCI states indicated in the first control element.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices for the corresponding codepoint by indicating ordinal positions of activated TCI states, as indicated in the first control element, in corresponding index values in a single octet.
  • One or more of the above examples can further include wherein the single octet further includes one or more reserved values.
  • One or more of the above examples can further include wherein the second control element indicates the multiple active TCI state indices by indicating ordinal positions of a first activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a first set of octets and indicating ordinal positions of a second activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a second set of octets.
  • One or more of the above examples can further include wherein the indications for each of the multiple codepoints indicate whether the second set of octets includes a second activated TCI state for a corresponding codepoint.
  • One or more of the above examples can further include wherein each of the first set of octets and the second set of octets include one or more reserved values.
  • the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims.
  • the following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed, and this description is intended to include all such aspects and their equivalents.
  • FIG. 1 illustrates an example of a wireless communication system, in accordance with various aspects of the present disclosure
  • FIG. 2 is a block diagram illustrating an example of a UE, in accordance with various aspects of the present disclosure
  • FIG. 3 is a block diagram illustrating an example of a base station, in accordance with various aspects of the present disclosure
  • FIG. 4 is a flow chart illustrating an example of a method for transmitting transmission configuration indication (TCI) state configurations, in accordance with various aspects of the present disclosure
  • FIG. 5 is a flow chart illustrating an example of a method for receiving TCI state configurations, in accordance with various aspects of the present disclosure
  • FIG. 6 illustrates an example of a control element for indicating activated TCI states, in accordance with various aspects of the present disclosure
  • FIG. 7 illustrates an example of a control element for indicating a bundling relationship between activated TCI states for each of multiple codepoints, in accordance with various aspects of the present disclosure
  • FIG. 8 illustrates another example of a control element for indicating a bundling relationship between activated TCI states for each of multiple codepoints, in accordance with various aspects of the present disclosure.
  • FIG. 9 is a block diagram illustrating an example of a MIMO communication system including a base station and a UE, in accordance with various aspects of the present disclosure.
  • the described features generally relate to configuring and/or activating multiple transmission configuration indication (TCI) states for wireless communications.
  • TCI state can correspond to a reference signal and associated quasi-colocation (QCL) types, which can indicate a beam used for transmitting the communications.
  • QCL quasi-colocation
  • a list of multiple possible TCI states can be configured as candidates for downlink communications.
  • PDSCH physical downlink shared channel
  • NR new radio
  • RRC radio resource control
  • M maximum list, of 128 TCI states, each of which can indicate one or more (e.g., two) reference signals with different QCL types.
  • DCI Downlink control information
  • a user equipment can determine the set of activated TCI states from the MAC CE, and can sequentially map the ordinal position of the activated TCI states to codepoints of the TCI field. Based on the value of the TCI field received in DCI, the UE can determine the ordinal position of associated activated TCI state, within the configured states, to be used for PDSCH.
  • TRPs transmission reception points
  • RBs resource blocks
  • SDM symbol-division multiplexing
  • FDM frequency division multiplexing
  • OFDM orthogonal frequency division multiplexing
  • the TCI field in the DCI can indicate two TCI states for the purpose of receiving the scheduled PDSCH.
  • TCI field in the DCI can point to two QCL relationships referring to two RS sets.
  • the TCI indication framework can be enhanced at least for enhanced mobile broadband (eMBB) such that each codepoint of the TCI field in a DCI can correspond to one or more (e.g., two) TCI states.
  • eMBB enhanced mobile broadband
  • each TCI state can corresponds to one code division multiplexing (CDM) group, at least for DMRS type 1 (and/or perhaps for DMRS type 2) .
  • CDM code division multiplexing
  • a second CE e.g., MAC CE
  • the second CE can be used to indicate a bundling relationship between one or more (e.g., two) activated TCI states and each codepoint of the TCI field.
  • the second CE can include indications for each codepoint of whether the codepoint is associated with multiple activated TCI states.
  • the second CE can also include information for deriving the multiple activated TCI states for each codepoint from the first CE that indicates the activated TCI states from the list of (e.g., M) configured TCI states.
  • a UE can check the indication in the second CE for a given codepoint, and can according map or otherwise determine the one or multiple activated TCI states that correspond to the codepoint.
  • the UE can also receive an indication of which of multiple activated TCI states to use given a specified TCI field value. For example, in the multiple TRP case, the UE can use the activated TCI state for the codepoint corresponding to the specified TCI field that relates to the TRP transmitting the DCI.
  • a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and the computing device can be a component.
  • One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • the components can communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets, such as data from one component interacting with another component in a local system, distributed system, and/or across a network such as the Internet with other systems by way of the signal.
  • Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • a CDMA system may implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA) , etc.
  • CDMA2000 covers IS-2000, IS-95, and IS-856 standards.
  • IS-2000 Releases 0 and A are commonly referred to as CDMA2000 1X, 1X, etc.
  • IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD) , etc.
  • UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA.
  • a TDMA system may implement a radio technology such as Global System for Mobile Communications (GSM) .
  • GSM Global System for Mobile Communications
  • An OFDMA system may implement a radio technology such as Ultra Mobile Broadband (UMB) , Evolved UTRA (E-UTRA) , IEEE 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM TM , etc.
  • UMB Ultra Mobile Broadband
  • E-UTRA Evolved UTRA
  • Wi-Fi Wi-Fi
  • WiMAX IEEE 802.16
  • IEEE 802.20 Flash-OFDM TM
  • UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS) .
  • 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are new releases of UMTS that use E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named “3rd Generation Partnership Project” (3GPP) .
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2) .
  • the techniques described herein may be used for the systems and radio technologies mentioned above as well as other systems and radio technologies, including cellular (e.g., LTE) communications over a shared radio frequency spectrum band.
  • LTE/LTE-A system for purposes of example, and LTE terminology is used in much of the description below, although the techniques are applicable beyond LTE/LTE-Aapplications (e.g., to fifth generation (5G) new radio (NR) networks or other next generation communication systems) .
  • 5G fifth generation
  • NR new radio
  • FIG. 1 is a diagram illustrating an example of a wireless communications system and an access network 100.
  • the wireless communications system (also referred to as a wireless wide area network (WWAN) ) can include base stations 102, UEs 104, an Evolved Packet Core (EPC) 160, and/or a 5G Core (5GC) 190.
  • the base stations 102 may include macro cells (high power cellular base station) and/or small cells (low power cellular base station) .
  • the macro cells can include base stations.
  • the small cells can include femtocells, picocells, and microcells.
  • the base stations 102 may also include gNBs 180, as described further herein.
  • some nodes of the wireless communication system may have a modem 240 and communicating component 242 for activating multiple TCI states for one or more of multiple codepoints of a TCI field.
  • some nodes may have a modem 340 and configuring component 342 for configuring multiple TCI states for one or more of multiple codepoints of a TCI field, as described herein.
  • a UE 104 is shown as having the modem 240 and communicating component 242 and a base station 102/gNB 180 is shown as having the modem 340 and configuring component 342, this is one illustrative example, and substantially any node or type of node may include a modem 240 and communicating component 242 and/or a modem 340 and configuring component 342 for providing corresponding functionalities described herein.
  • the base stations 102 configured for 4G LTE (which can collectively be referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) ) may interface with the EPC 160 through backhaul links 132 (e.g., using an S1 interface) .
  • the base stations 102 configured for 5G NR (which can collectively be referred to as Next Generation RAN (NG-RAN) ) may interface with 5GC 190 through backhaul links 184.
  • NG-RAN Next Generation RAN
  • the base stations 102 may perform one or more of the following functions: transfer of user data, radio channel ciphering and deciphering, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity) , inter-cell interference coordination, connection setup and release, load balancing, distribution for non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS) , subscriber and equipment trace, RAN information management (RIM) , paging, positioning, and delivery of warning messages.
  • NAS non-access stratum
  • RAN radio access network
  • MBMS multimedia broadcast multicast service
  • RIM RAN information management
  • the base stations 102 may communicate directly or indirectly (e.g., through the EPC 160 or 5GC 190) with each other over backhaul links 134 (e.g., using an X2 interface) .
  • the backhaul links 134 may be wired or wireless.
  • the base stations 102 may wirelessly communicate with one or more UEs 104. Each of the base stations 102 may provide communication coverage for a respective geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, the small cell 102' may have a coverage area 110' that overlaps the coverage area 110 of one or more macro base stations 102.
  • a network that includes both small cell and macro cells may be referred to as a heterogeneous network.
  • a heterogeneous network may also include Home Evolved Node Bs (eNBs) (HeNBs) , which may provide service to a restricted group, which can be referred to as a closed subscriber group (CSG) .
  • eNBs Home Evolved Node Bs
  • HeNBs Home Evolved Node Bs
  • CSG closed subscriber group
  • the communication links 120 between the base stations 102 and the UEs 104 may include uplink (UL) (also referred to as reverse link) transmissions from a UE 104 to a base station 102 and/or downlink (DL) (also referred to as forward link) transmissions from a base station 102 to a UE 104.
  • the communication links 120 may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and/or transmit diversity.
  • the communication links may be through one or more carriers.
  • the base stations 102 /UEs 104 may use spectrum up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc.
  • the component carriers may include a primary component carrier and one or more secondary component carriers.
  • a primary component carrier may be referred to as a primary cell (PCell) and a secondary component carrier may be referred to as a secondary cell (SCell) .
  • D2D communication link 158 may use the DL/UL WWAN spectrum.
  • the D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , and a physical sidelink control channel (PSCCH) .
  • sidelink channels such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , and a physical sidelink control channel (PSCCH) .
  • sidelink channels such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , and a physical sidelink control channel (PSCCH) .
  • D2D communication may be through a variety of wireless D2D communications systems, such as for example, FlashLinQ, WiMedia,
  • the wireless communications system may further include a Wi-Fi access point (AP) 150 in communication with Wi-Fi stations (STAs) 152 via communication links 154 in a 5 GHz unlicensed frequency spectrum.
  • AP Wi-Fi access point
  • STAs Wi-Fi stations
  • communication links 154 in a 5 GHz unlicensed frequency spectrum.
  • the STAs 152 /AP 150 may perform a clear channel assessment (CCA) prior to communicating in order to determine whether the channel is available.
  • CCA clear channel assessment
  • the small cell 102' may operate in a licensed and/or an unlicensed frequency spectrum. When operating in an unlicensed frequency spectrum, the small cell 102' may employ NR and use the same 5 GHz unlicensed frequency spectrum as used by the Wi-Fi AP 150. The small cell 102' , employing NR in an unlicensed frequency spectrum, may boost coverage to and/or increase capacity of the access network.
  • a base station 102 may include an eNB, gNodeB (gNB) , or other type of base station.
  • Some base stations, such as gNB 180 may operate in a traditional sub 6 GHz spectrum, in millimeter wave (mmW) frequencies, and/or near mmW frequencies in communication with the UE 104.
  • mmW millimeter wave
  • mmW millimeter wave
  • mmW base station Extremely high frequency (EHF) is part of the RF in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 millimeter and 10 millimeters.
  • Radio waves in the band may be referred to as a millimeter wave.
  • Near mmW may extend down to a frequency of 3 GHz with a wavelength of 100 millimeters.
  • the super high frequency (SHF) band extends between 3 GHz and 30 GHz, also referred to as centimeter wave. Communications using the mmW /near mmW radio frequency band has extremely high path loss and a short range.
  • the mmW base station 180 may utilize beamforming 182 with the UE 104 to compensate for the extremely high path loss and short range.
  • a base station 102 referred to herein can include a gNB 180.
  • the EPC 160 may include a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172.
  • MME Mobility Management Entity
  • MBMS Multimedia Broadcast Multicast Service
  • BM-SC Broadcast Multicast Service Center
  • PDN Packet Data Network
  • the MME 162 may be in communication with a Home Subscriber Server (HSS) 174.
  • HSS Home Subscriber Server
  • the MME 162 is the control node that processes the signaling between the UEs 104 and the EPC 160.
  • the MME 162 provides bearer and connection management. All user Internet protocol (IP) packets are transferred through the Serving Gateway 166, which itself is connected to the PDN Gateway 172.
  • IP Internet protocol
  • the PDN Gateway 172 provides UE IP address allocation as well as other functions.
  • the PDN Gateway 172 and the BM-SC 170 are connected to the IP Services 176.
  • the IP Services 176 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a PS Streaming Service, and/or other IP services.
  • the BM-SC 170 may provide functions for MBMS user service provisioning and delivery.
  • the BM-SC 170 may serve as an entry point for content provider MBMS transmission, may be used to authorize and initiate MBMS Bearer Services within a public land mobile network (PLMN) , and may be used to schedule MBMS transmissions.
  • PLMN public land mobile network
  • the MBMS Gateway 168 may be used to distribute MBMS traffic to the base stations 102 belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service, and may be responsible for session management (start/stop) and for collecting eMBMS related charging information.
  • MMSFN Multicast Broadcast Single Frequency Network
  • the 5GC 190 may include an Access and Mobility Management Function (AMF) 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195.
  • the AMF 192 may be in communication with a Unified Data Management (UDM) 196.
  • the AMF 192 can be a control node that processes the signaling between the UEs 104 and the 5GC 190.
  • the AMF 192 can provide QoS flow and session management.
  • User Internet protocol (IP) packets (e.g., from one or more UEs 104) can be transferred through the UPF 195.
  • the UPF 195 can provide UE IP address allocation for one or more UEs, as well as other functions.
  • the UPF 195 is connected to the IP Services 197.
  • the IP Services 197 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a PS Streaming Service, and/or other IP services.
  • IMS
  • the base station may also be referred to as a gNB, Node B, evolved Node B (eNB) , an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS) , an extended service set (ESS) , a transmit reception point (TRP) , or some other suitable terminology.
  • the base station 102 provides an access point to the EPC 160 or 5GC 190 for a UE 104.
  • Examples of UEs 104 include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA) , a satellite radio, a positioning system (e.g., satellite, terrestrial) , a multimedia device, a video device, a digital audio player (e.g., MP3 player) , a camera, a game console, a tablet, a smart device, robots, drones, an industrial/manufacturing device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, virtual reality goggles, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet) ) , a vehicle/avehicular device, a meter (e.g., parking meter, electric meter, gas meter, water meter, flow meter) , a gas pump, a large or small kitchen appliance, a medical/healthcare device, an implant, a sensor
  • IoT devices e.g., meters, pumps, monitors, cameras, industrial/manufacturing devices, appliances, vehicles, robots, drones, etc.
  • IoT UEs may include MTC/enhanced MTC (eMTC, also referred to as CAT-M, Cat M1) UEs, NB-IoT (also referred to as CAT NB1) UEs, as well as other types of UEs.
  • eMTC and NB-IoT may refer to future technologies that may evolve from or may be based on these technologies.
  • eMTC may include FeMTC (further eMTC) , eFeMTC (enhanced further eMTC) , mMTC (massive MTC) , etc.
  • NB-IoT may include eNB-IoT (enhanced NB-IoT) , FeNB-IoT (further enhanced NB-IoT) , etc.
  • the UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.
  • a base station 102 with a configuring component 342 can generate one or more configurations for indicating TCI states, including a set of configured TCI states, a reduced set of activated TCI states, one or more indicated TCI states for downlink communications, etc.
  • the configuring component 342 can generate a configuration to indicating multiple activated TCI states for at least a single codepoint of multiple codepoints corresponding to the activated TCI states. This may be useful for scheduling TCI states for multiple TRPs (e.g., multiple PDSCHs) using a single PDCCH, such as in a multiple TRP configuration for a UE 104.
  • UE 104 can communicate with multiple TRPs, but may receive one DCI configuring downlink communications from the multiple TRPs.
  • the UE 104 can receive the configuration, and can determine multiple TCI states corresponding to a single codepoint.
  • a base station 102 e.g., a TRP
  • the UE 104 can further determine, based on the TRP, which of the multiple TCI states for the codepoint correspond to the TRP for receiving downlink communications therefrom.
  • FIGS. 2-9 aspects are depicted with reference to one or more components and one or more methods that may perform the actions or operations described herein, where aspects in dashed line may be optional.
  • FIGS. 4-5 are presented in a particular order and/or as being performed by an example component, it should be understood that the ordering of the actions and the components performing the actions may be varied, depending on the implementation.
  • the following actions, functions, and/or described components may be performed by a specially-programmed processor, a processor executing specially-programmed software or computer-readable media, or by any other combination of a hardware component and/or a software component capable of performing the described actions or functions.
  • one example of an implementation of UE 104 may include a variety of components, some of which have already been described above and are described further herein, including components such as one or more processors 212 and memory 216 and transceiver 202 in communication via one or more buses 244, which may operate in conjunction with modem 240 and/or communicating component 242 for determining a configuration of active TCI states, where multiple TCI states can be associated with a single codepoint, as described herein.
  • the one or more processors 212 can include a modem 240 and/or can be part of the modem 240 that uses one or more modem processors.
  • the various functions related to communicating component 242 may be included in modem 240 and/or processors 212 and, in an aspect, can be executed by a single processor, while in other aspects, different ones of the functions may be executed by a combination of two or more different processors.
  • the one or more processors 212 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiver processor, or a transceiver processor associated with transceiver 202. In other aspects, some of the features of the one or more processors 212 and/or modem 240 associated with communicating component 242 may be performed by transceiver 202.
  • memory 216 may be configured to store data used herein and/or local versions of applications 275 or communicating component 242 and/or one or more of its subcomponents being executed by at least one processor 212.
  • Memory 216 can include any type of computer-readable medium usable by a computer or at least one processor 212, such as random access memory (RAM) , read only memory (ROM) , tapes, magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof.
  • RAM random access memory
  • ROM read only memory
  • tapes such as magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof.
  • memory 216 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining communicating component 242 and/or one or more of its subcomponents, and/or data associated therewith, when UE 104 is operating at least one processor 212 to execute communicating component 242 and/or one or more of its subcomponents.
  • Transceiver 202 may include at least one receiver 206 and at least one transmitter 208.
  • Receiver 206 may include hardware and/or software executable by a processor for receiving data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium) .
  • Receiver 206 may be, for example, a radio frequency (RF) receiver.
  • RF radio frequency
  • receiver 206 may receive signals transmitted by at least one base station 102. Additionally, receiver 206 may process such received signals, and also may obtain measurements of the signals, such as, but not limited to, Ec/Io, signal-to-noise ratio (SNR) , reference signal received power (RSRP) , received signal strength indicator (RSSI) , etc.
  • SNR signal-to-noise ratio
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • Transmitter 208 may include hardware and/or software executable by a processor for transmitting data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium) .
  • a suitable example of transmitter 208 may including, but is not limited to, an RF transmitter.
  • UE 104 may include RF front end 288, which may operate in communication with one or more antennas 265 and transceiver 202 for receiving and transmitting radio transmissions, for example, wireless communications transmitted by at least one base station 102 or wireless transmissions transmitted by UE 104.
  • RF front end 288 may be connected to one or more antennas 265 and can include one or more low-noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.
  • LNAs low-noise amplifiers
  • PAs power amplifiers
  • LNA 290 can amplify a received signal at a desired output level.
  • each LNA 290 may have a specified minimum and maximum gain values.
  • RF front end 288 may use one or more switches 292 to select a particular LNA 290 and its specified gain value based on a desired gain value for a particular application.
  • one or more PA (s) 298 may be used by RF front end 288 to amplify a signal for an RF output at a desired output power level.
  • each PA 298 may have specified minimum and maximum gain values.
  • RF front end 288 may use one or more switches 292 to select a particular PA 298 and its specified gain value based on a desired gain value for a particular application.
  • one or more filters 296 can be used by RF front end 288 to filter a received signal to obtain an input RF signal.
  • a respective filter 296 can be used to filter an output from a respective PA 298 to produce an output signal for transmission.
  • each filter 296 can be connected to a specific LNA 290 and/or PA 298.
  • RF front end 288 can use one or more switches 292 to select a transmit or receive path using a specified filter 296, LNA 290, and/or PA 298, based on a configuration as specified by transceiver 202 and/or processor 212.
  • transceiver 202 may be configured to transmit and receive wireless signals through one or more antennas 265 via RF front end 288.
  • transceiver may be tuned to operate at specified frequencies such that UE 104 can communicate with, for example, one or more base stations 102 or one or more cells associated with one or more base stations 102.
  • modem 240 can configure transceiver 202 to operate at a specified frequency and power level based on the UE configuration of the UE 104 and the communication protocol used by modem 240.
  • modem 240 can be a multiband-multimode modem, which can process digital data and communicate with transceiver 202 such that the digital data is sent and received using transceiver 202.
  • modem 240 can be multiband and be configured to support multiple frequency bands for a specific communications protocol.
  • modem 240 can be multimode and be configured to support multiple operating networks and communications protocols.
  • modem 240 can control one or more components of UE 104 (e.g., RF front end 288, transceiver 202) to enable transmission and/or reception of signals from the network based on a specified modem configuration.
  • the modem configuration can be based on the mode of the modem and the frequency band in use.
  • the modem configuration can be based on UE configuration information associated with UE 104 as provided by the network during cell selection and/or cell reselection.
  • communicating component 242 can optionally include a TCI state activating component 252 for activating multiple TCI states based on configurations received from a base station 102, and/or a TCI state determining component 254 for determine which of the active TCI states correspond to a TCI field indicated in DCI for receiving downlink communications from the base station 102 or another TRP, as described herein.
  • a TCI state activating component 252 for activating multiple TCI states based on configurations received from a base station 102
  • a TCI state determining component 254 for determine which of the active TCI states correspond to a TCI field indicated in DCI for receiving downlink communications from the base station 102 or another TRP, as described herein.
  • the processor (s) 212 may correspond to one or more of the processors described in connection with the UE in FIG. 9.
  • the memory 216 may correspond to the memory described in connection with the UE in FIG. 9.
  • base station 102 may include a variety of components, some of which have already been described above, but including components such as one or more processors 312 and memory 316 and transceiver 302 in communication via one or more buses 344, which may operate in conjunction with modem 340 and configuring component 342 for configuring multiple active TCI states for receiving downlink communications from the base station 102 and/or from other TRPs.
  • components such as one or more processors 312 and memory 316 and transceiver 302 in communication via one or more buses 344, which may operate in conjunction with modem 340 and configuring component 342 for configuring multiple active TCI states for receiving downlink communications from the base station 102 and/or from other TRPs.
  • the transceiver 302, receiver 306, transmitter 308, one or more processors 312, memory 316, applications 375, buses 344, RF front end 388, LNAs 390, switches 392, filters 396, PAs 398, and one or more antennas 365 may be the same as or similar to the corresponding components of UE 104, as described above, but configured or otherwise programmed for base station operations as opposed to UE operations.
  • configuring component 342 can optionally include a TCI state indicating component 352 for indicating activation of multiple TCI states, which may include activating multiple TCI states per codepoint of a TCI field, and/or a DCI component 354 for generating DCI indicating a value for the TCI field from which a TCI state used in transmitting associated downlink communications can be determined, as described herein.
  • TCI state indicating component 352 for indicating activation of multiple TCI states, which may include activating multiple TCI states per codepoint of a TCI field
  • DCI component 354 for generating DCI indicating a value for the TCI field from which a TCI state used in transmitting associated downlink communications can be determined, as described herein.
  • the processor (s) 312 may correspond to one or more of the processors described in connection with the base station in FIG. 9.
  • the memory 316 may correspond to the memory described in connection with the base station in FIG. 9.
  • FIG. 4 illustrates a flow chart of an example of a method 400 for configuring multiple TCI states for one or more codepoints of a TCI field in accordance with aspects described herein.
  • FIG. 5 illustrates a flow chart of an example of a method 500 for activating multiple TCI states, where multiple active TCI states can be configured for a given codepoint of a TCI field, in accordance with aspects described herein.
  • Method 400 and 500 are described in conjunction with one another for ease of explanation, though the methods 400 and 500 are not required to be performed in conjunction.
  • a base station 102 can perform the functions described in method 400 using one or more of the components described in FIGS. 1 and 3
  • a UE 104 can perform the functions described in method 500 using one or more of the components described in FIGS. 1 and 2.
  • a first CE indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications can be transmitted.
  • TCI state indicating component 352 e.g., in conjunction with processor (s) 312, memory 316, transceiver 302, configuring component 342, etc., can transmit the first CE indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications.
  • TCI state indicating component 352 can transmit the first CE (e.g., a MAC CE) to indicate which of the multiple configured TCI states are active TCI states for use in transmitting downlink communications.
  • TCI state indicating component 352 can transmit the MAC CE with a collection of bits indicating which of the configured TCI states are activated for possible use in transmitting downlink communications.
  • a specific example, of the MAC CE is shown in FIG. 6.
  • FIG. 6 illustrates an example of a MAC CE for activating a subset of configured TCI states for use in transmitting downlink (e.g., PDSCH) communications.
  • the MAC CE can include a Serving Cell ID field that indicates the identity of the Serving Cell for which the MAC CE applies. The length of the field is 5 bits, in this example.
  • the MAC CE can also include a BWP ID field that indicates a DL bandwidth part (BWP) for which the MAC CE applies as the codepoint of the DCI bandwidth part indicator field as specified in third generation partnership project (3GPP) technical specification (TS) 38.212.
  • the length of the BWP ID field is 2 bits.
  • the MAC CE also include various T fields (e.g., T 0 ...
  • T i if there is a TCI state with TCI-StateId i as specified in 3GPP TS 38.331, this field indicates the activation/deactivation status of the TCI state with TCI-StateId i, otherwise MAC entity can ignore the T i field.
  • the T i field can be set to 1 to indicate that the TCI state with TCI-StateId i shall be activated and mapped to the codepoint of the DCI Transmission Configuration Indication field, as specified in 3GPP TS 38.214.
  • the T i field can be set to 0 to indicate that the TCI state with TCI-StateId i shall be deactivated and is not mapped to the codepoint of the DCI Transmission Configuration Indication field.
  • the codepoint to which the TCI State is mapped is determined by its ordinal position among all the TCI States with T i field set to 1, i.e. the first TCI State with T i field set to 1 shall be mapped to the codepoint value 0, second TCI State with T i field set to 1 shall be mapped to the codepoint value 1 and so on.
  • the maximum number of activated TCI states in 5G NR can be 8.
  • a first CE indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications can be received.
  • TCI state activating component 252 e.g., in conjunction with processor (s) 212, memory 216, transceiver 202, etc., can receive the first CE indicating which of multiple configured TCI states are active TCI states for use in transmitting downlink communications.
  • TCI state activating component 252 can initially receive the list of configured TCI states as a list of M states in RRC configuration from the base station 102, as described.
  • TCI state activating component 252 can then receive the CE (e.g., MAC CE) indicating which of the configured TCI states are activated for potential use in transmitting downlink communications.
  • the CE can be described with respect to FIG. 6, which can include bits indicating the TCI states that are active.
  • TCI state activating component 252 can accordingly determine the codepoints for the TCI field based on the activated TCI states, e.g., where each codepoint can sequentially refer to the ordinal position of an activated TCI state.
  • a second CE indicating multiple active TCI states for at least one codepoint of multiple codepoints can be received.
  • TCI state indicating component 352 e.g., in conjunction with processor (s) 312, memory 316, transceiver 302, configuring component 342, etc., can transmit the second CE indicating the multiple active TCI states for at least one codepoint of the multiple codepoints.
  • this may be useful in many scenarios, such as where there are multiple TRPs and/or the base station 102 (which may be one of the TRPs) transmits the DCI for downlink communications from the multiple TRPs.
  • TCI state indicating component 352 can indicate the multiple active TCI states for a given codepoint (e.g., per codepoint) in multiple different ways. For example, TCI state indicating component 352 can indicate a bundling relationship between multiple TCI states and each TCI field codepoint.
  • TCI state indicating component 352 can generate the second CE to include indications for each of the multiple codepoints indicating whether multiple active TCI states are configured. These can be bit indicators for each possible codepoint, as described herein, where the bit indicates whether or not the codepoint activates multiple (e.g., two) TCI states.
  • the second CE in transmitting the second CE at Block 404, optionally at Block 406, can be generated with an indication, of multiple indications, corresponding to the at least one codepoint indicating that the at least one codepoint is associated with multiple active TCI states.
  • TCI state indicating component 352 e.g., in conjunction with processor (s) 312, memory 316, transceiver 302, configuring component 342, etc., can generate the second CE with an indication, if multiple indications corresponding to the at least one codepoint indicating that the at least one codepoint is associated with multiple active TCI states.
  • the indications can be a collection of bits, where each bit can correspond to one of the multiple codepoints.
  • TCI state indicating component 352 can generate the second CE to include the indices for the codepoint that indicates the ordinal position for each activated TCI state (e.g., as indicated by the first CE described above) .
  • the second CE in transmitting the second CE at Block 404, optionally at Block 408, can be generated with a single octet that corresponds to the at least one codepoint and an index value in the single octet indicating the ordinal position for the corresponding TCI state.
  • TCI state indicating component 352 e.g., in conjunction with processor (s) 312, memory 316, transceiver 302, configuring component 342, etc., can generate the second CE with a single octet that corresponds to the at least one codepoint and an index value in the single octet indicating the ordinal position for the corresponding TCI state.
  • the ordinal position can relate to the indication of active TCI states received in the first CE, as described above.
  • the second CE may be generated to include index values for each codepoint, and may include multiple index value for a given codepoint where the corresponding bit indicator indicates multiple TCI states for the given codepoint.
  • a specific example of a second MAC CE is shown in FIG. 7.
  • FIG. 7 illustrates an example of a second MAC CE 700 for activating multiple TCI states for a given codepoint.
  • the second TCI state can be in the right after the first TCI state for each codepoint.
  • the second MAC CE can include an octet with a collection of one bit indications (C i ) indicating whether the second TCI state is present or not for the codepoints.
  • the Serving Cell ID and BWP ID fields can be as explained for the first MAC CE in FIG. 6.
  • the C i (e.g., C 0 ... C 7 ) field can indicate whether the second TCI state (index) is configured or not in the i + 3 row (octet) of the MAC CE.
  • N bit TCI in DCI activates at most 8 TCI states.
  • the worst case is 16 different TCI states which are activated.
  • a four bit Activated TCI index field can be used to indicate the index of the activated TCI state when considering the ordinal position of the activated TCI states in the first MAC CE (e.g., the MAC CE shown in FIG. 6) , and each codepoint can have an octet with the two corresponding four bit values.
  • the activated TCI index 0_1 can be the first TCI state of codepoint 0, while the activated TCI index 0_2 can the second TCI state of codepoint 0 (if configured, as indicated by C 0 ) .
  • a three bit TCI state index can be used in each octet as shown in MAC CE 702, with two most significant bits in the octet being reserved (R) bits.
  • TCI state indicating component 352 can generate the second CE to include multiple active TCI state indices by indicating ordinal positions of a first activated TCI state, as indicated in the first control element, for each of the multiple codepoints in a first set of octets and indicating ordinal positions of a second activated TCI state, as indicated in the first control element, for one or more of the multiple codepoints in a second set of octets.
  • the bit indicator can specify whether a second activated TCI state is indicated for the codepoint (and thus is present in the second set of octets) or not.
  • the second CE in transmitting the second CE at Block 404, optionally at Block 410, can be generated with a portion of a set of octets that corresponds to the at least one codepoint and an index value in the portion of the set of octets indicating the ordinal position for the corresponding TCI state.
  • TCI state indicating component 352 e.g., in conjunction with processor (s) 312, memory 316, transceiver 302, configuring component 342, etc., can generate the second CE with the portion of the set of octets that corresponds to the at least one codepoint and the index value in the portion of the set of octets indicating the ordinal position for the corresponding TCI state.
  • the ordinal position can relate to the indication of active TCI states received in the first CE, as described above.
  • the second CE may be generated to include index values for codepoints for which the corresponding bit indicator indicates multiple TCI states for the given codepoint (e.g., and not for codepoints for which the corresponding bit indicator does not indicate multiple TCI states) .
  • a specific example of a second MAC CE is shown in FIG. 8.
  • FIG. 8 illustrates another example of a second MAC CE 800 for activating multiple TCI states for a given codepoint.
  • the first TCI states of all codepoints can be in front of MAC CE, and the second TCI state for each code point can be in the following but based on the one bit indication.
  • the first activated TCI state ID index for each code point can be in row (octet) 3 to row (octet) 6, and up to 8 TCI states can be activated (e.g., activate TCI Index 0_1, 1_1, 2_1, 3_1, ..., 7_1) .
  • the second activated TCI state ID index 0_2, 1_2, ...for each codepoint can be positioned after the first TCI state ID block in the MAC CE 800 and the bundling information can be given by C i .
  • C i the bundling information
  • activated TCI index 0_2 can be the second TCI state for code point
  • activated TCI index 1_2 can be the second TCI state for code point 2.
  • a three bit TCI state index can be used in each octet as shown in MAC CE 802, with two most significant bits in the octet being reserved (R) bits.
  • a second CE indicating multiple active TCI states for at least one codepoint of multiple codepoints can be received.
  • TCI state activating component 252 e.g., in conjunction with processor (s) 212, memory 216, transceiver 202, etc., can receive the second CE indicating the multiple active TCI states for at least one codepoint of the multiple codepoints.
  • TCI state activating component 252 can receive the second CE as another MAC CE (e.g., after the first MAC CE or otherwise) to determine which of the codepoints of the TCI field are to be associated with multiple TCI states.
  • the second MAC CE may include a MAC CE as described in FIGs. 7 and 8, and can be used to determine a TCI state for a codepoint and TRP combination, as described further herein.
  • DCI for downlink communications indicating a codepoint for a TCI state corresponding to the downlink communications can be transmitted.
  • DCI component 354 e.g., in conjunction with processor (s) 312, memory 316, transceiver 302, configuring component 342, etc., can transmit DCI for downlink communications indicating the codepoint for the TCI state (e.g., in the TCI field) corresponding to the downlink communications.
  • DCI component 354 can schedule resources for receiving downlink communications in this regard, and can indicate the TCI state that is used to transmit the downlink communications by using the TCI field to indicate the codepoint.
  • DCI for downlink communications indicating a codepoint for a TCI state corresponding to the downlink communications can be received.
  • communicating component 242 e.g., in conjunction with processor (s) 212, memory 216, transceiver 202, etc., can receive the DCI for downlink communications indicating the codepoint for the TCI state (e.g., in the TCI field) corresponding to the downlink communications.
  • Communicating component 242 in an example, can receive the DCI for scheduling the UE 104 to receive the downlink communications from the base station 102 and according to the indicated TCI state.
  • the TCI state corresponding to the downlink communications can be determined based at least in part on the codepoint and the second CE indicating multiple active TCI states for the codepoint.
  • TCI state determining component 254 e.g., in conjunction with processor (s) 212, memory 216, transceiver 202, communicating component 242, etc., can determine, based at least in part on the codepoint and the second CE indicating the multiple active TCI states for the codepoint, the TCI state corresponding to the downlink communications.
  • TCI state determining component 254 can determine the TCI state based on the indicators and/or the index values indicated in the second CE, as described with reference to FIGs. 7 and 8 above.
  • the indications may be used to derive which of the multiple TCI states to use.
  • the first set of TCI states e.g., in FIG. 8 or as otherwise indicated by the first CE ( and/or activated index 1 or 2 (e.g., in FIG. 7) may relate to one TRP (e.g., the TRP transmitting the MAC CEs and/or PDCCH) and the other may relate to the other TRP.
  • TCI state determining component 254 can further determine the TCI state based on identifying the TRP to which the DCI (e.g., as received at Block 506) relates.
  • TCI state determining component 254 e.g., in conjunction with processor (s) 212, memory 216, transceiver 202, communicating component 242, etc., can determine that the indication, of multiple indications, corresponding to the codepoint indicates that the codepoint is associated with multiple active TCI states.
  • the indications can include bit indications, as described above, that indicate for each codepoint whether the codepoint is associated with multiple (e.g., two) TCI states.
  • TCI state determining component 254 can determine the TCI state of the multiple TCI states that corresponds to the DCI, which can include determining which state corresponds to a TRP to which the DCI relates. As described above and further herein, the indication and/or all of the multiple indications can be used to determine a structure of activated TCI indices in the second CE.
  • TCI state determining component 254 e.g., in conjunction with processor (s) 212, memory 216, transceiver 202, communicating component 242, etc., can determine, based on the codepoint, the single octet that corresponds to the codepoint and an index value in the single octet indicating the ordinal position for the TCI state.
  • TCI state determining component 254 can determine whether the multiple TCI states are present for the codepoint based on the indications in the second MAC CE (e.g., whether the indication for the codepoint indicates multiple TCI states are activated) .
  • the second TCI state can be after the first TCI state for each codepoint, and whether present or not is based on one bit indication.
  • the second CE can include activated TCI index for each TCI state for a given codepoint as a four bit value that indicates the index of the activated TCI state when considering the ordinal position of the activated TCI states in the first CE.
  • TCI state determining component 254 can determine the TCI state based on the codepoint received in the DCI, the indication indicating whether the codepoint activates multiple TCI states, and the TRP to which the DCI relates (which indicates which of the two activated TCI indices to consider) .
  • the value can indicate a 16-bit codepoint that references the ordinal position of the TCI state in the activated TCI states received in the first CE (which can include up to 16 states, in this example) .
  • the 8-bit index value is used, as described above, the value can indicate a 8-bit codepoint that references the ordinal position of the TCI state in the activated TCI states received in the first CE.
  • a portion of a set of octets that corresponds to the codepoint and an index value in the portion of the set of octets indicating the ordinal position for the TCI state can be determined.
  • TCI state determining component 254 e.g., in conjunction with processor (s) 212, memory 216, transceiver 202, communicating component 242, etc., can determine, based on the indications and the codepoint, the portion of the set of octets that corresponds to the codepoint and an index value in the portion of the set of octets indicating the ordinal position for the TCI state.
  • TCI state determining component 254 can determine, based on the indications (e.g., based on bit indications for all codepoints) whether multiple TCI states are activated for the codepoints.
  • TCI state determining component 254 may determine a structure for the set of octets based on the indications. As described above, with reference to FIG. 8, the indications may be used to determine for which codepoints multiple active TCI states are indicated in the set of octets.
  • the first set of octets in the second CE may indicate a first TCI state for all codepoints, and the second set of octets may indicate a second TCI state for codepoints for which the corresponding indication indicates that multiple TCI states are configured for the codepoint.
  • TCI state determining component 254 can determine the activated TCI index for a given codepoint based on the number of codepoints before it that have an indication indicating multiple TCI states configured. In addition, TCI state determining component 254 can determine to use the index value for the first or second TCI state based on the TRP to which the DCI relates.
  • the value can indicate a 16-bit codepoint that references the ordinal position of the TCI state in the activated TCI states received in the first CE (which can include up to 16 states, in this example) .
  • the 8-bit index value is used, as described above, the value can indicate a 8-bit codepoint that references the ordinal position of the TCI state in the activated TCI states received in the first CE.
  • the downlink communications can be transmitted based on the TCI state.
  • configuring component 342 e.g., in conjunction with processor (s) 312, memory 316, transceiver 302, etc., or a configuring component of another TRP, can transmit, based on the TCI state, the downlink communications.
  • configuring component 342 can transmit the downlink communications by using a beam that is based on a reference signal and/or QCL relationship corresponding to the TCI state, as described.
  • configuring component 342 can beamform the downlink communications to achieve the beam, which can be optimized for the UE 104.
  • the downlink communications can be received from the TRP based on the TCI state.
  • communicating component 242 e.g., in conjunction with processor (s) 212, memory 216, transceiver 202, etc., can receive, based on the TCI state, the downlink communication from the TRP.
  • communicating component 242 can receive the downlink communications based on a beam indicated for the TCI state.
  • communicating component 242 can beamform a receiver to receive the signal including the downlink communications.
  • FIG. 9 is a block diagram of a MIMO communication system 900 including a base station 102 and a UE 104, in accordance with various aspects of the present disclosure.
  • the MIMO communication system 900 may illustrate aspects of the wireless communication access network 100 described with reference to FIG. 1.
  • the base station 102 may be an example of aspects of the base station 102 described with reference to FIG. 1.
  • the base station 102 may be equipped with antennas 934 and 935, and the UE 104 may be equipped with antennas 952 and 953.
  • the base station 102 may be able to send data over multiple communication links at the same time.
  • Each communication link may be called a “layer” and the “rank” of the communication link may indicate the number of layers used for communication. For example, in a 2x2 MIMO communication system where base station 102 transmits two “layers, ” the rank of the communication link between the base station 102 and the UE 104 is two.
  • a transmit (Tx) processor 920 may receive data from a data source. The transmit processor 920 may process the data. The transmit processor 920 may also generate control symbols or reference symbols.
  • a transmit MIMO processor 930 may perform spatial processing (e.g., precoding) on data symbols, control symbols, or reference symbols, if applicable, and may provide output symbol streams to the transmit modulator/demodulators 932 and 933. Each modulator/demodulator 932 through 933 may process a respective output symbol stream (e.g., for OFDM, etc. ) to obtain an output sample stream.
  • Each modulator/demodulator 932 through 933 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a DL signal.
  • DL signals from modulator/demodulators 932 and 933 may be transmitted via the antennas 934 and 935, respectively.
  • the UE 104 may be an example of aspects of the UEs 104 described with reference to FIGS. 1-2.
  • the UE antennas 952 and 953 may receive the DL signals from the base station 102 and may provide the received signals to the modulator/demodulators 954 and 955, respectively.
  • Each modulator/demodulator 954 through 955 may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples.
  • Each modulator/demodulator 954 through 955 may further process the input samples (e.g., for OFDM, etc. ) to obtain received symbols.
  • a MIMO detector 956 may obtain received symbols from the modulator/demodulators 954 and 955, perform MIMO detection on the received symbols, if applicable, and provide detected symbols.
  • a receive (Rx) processor 958 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, providing decoded data for the UE 104 to a data output, and provide decoded control information to a processor 980, or memory 982.
  • the processor 980 may in some cases execute stored instructions to instantiate a communicating component 242 (see e.g., FIGS. 1 and 2) .
  • a transmit processor 964 may receive and process data from a data source.
  • the transmit processor 964 may also generate reference symbols for a reference signal.
  • the symbols from the transmit processor 964 may be precoded by a transmit MIMO processor 966 if applicable, further processed by the modulator/demodulators 954 and 955 (e.g., for SC-FDMA, etc. ) , and be transmitted to the base station 102 in accordance with the communication parameters received from the base station 102.
  • the UL signals from the UE 104 may be received by the antennas 934 and 935, processed by the modulator/demodulators 932 and 933, detected by a MIMO detector 936 if applicable, and further processed by a receive processor 938.
  • the receive processor 938 may provide decoded data to a data output and to the processor 940 or memory 942.
  • the processor 940 may in some cases execute stored instructions to instantiate a configuring component 342 (see e.g., FIGS. 1 and 3) .
  • the components of the UE 104 may, individually or collectively, be implemented with one or more ASICs adapted to perform some or all of the applicable functions in hardware.
  • Each of the noted modules may be a means for performing one or more functions related to operation of the MIMO communication system 900.
  • the components of the base station 102 may, individually or collectively, be implemented with one or more ASICs adapted to perform some or all of the applicable functions in hardware.
  • Each of the noted components may be a means for performing one or more functions related to operation of the MIMO communication system 900.
  • Information and signals may be represented using any of a variety of different technologies and techniques.
  • data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, computer-executable code or instructions stored on a computer-readable medium, or any combination thereof.
  • a specially-programmed device such as but not limited to a processor, a digital signal processor (DSP) , an ASIC, a FPGA or other programmable logic device, a discrete gate or transistor logic, a discrete hardware component, or any combination thereof designed to perform the functions described herein.
  • DSP digital signal processor
  • a specially-programmed processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
  • a specially-programmed processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • the functions described herein may be implemented in hardware, software, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a non-transitory computer-readable medium. Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example, due to the nature of software, functions described above can be implemented using software executed by a specially programmed processor, hardware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations. Moreover, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.
  • X employs A or B is intended to mean any of the natural inclusive permutations. That is, for example the phrase “X employs A or B” is satisfied by any of the following instances: X employs A; X employs B; or X employs both A and B.
  • “or” as used in a list of items prefaced by “at least one of” indicates a disjunctive list such that, for example, a list of “at least one of A, B, or C” means A or B or C or AB or AC or BC or ABC (A and B and C) .
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage medium may be any available medium that can be accessed by a general purpose or special purpose computer.
  • computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
  • any connection is properly termed a computer-readable medium.
  • Disk and disc include compact disc (CD) , laser disc, optical disc, digital versatile disc (DVD) , floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

Landscapes

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

Abstract

Des aspects de la présente invention portent sur la configuration de multiples états d'indication de configuration de transmission (TCI) d'un point de code d'un champ TCI. Ceci peut permettre d'activer différents ensembles d'états TCI de différents points de réception de transmission (TRP). Un premier élément de commande peut indiquer les états qui sont activés parmi un ensemble d'états TCI configurés, et un second élément de commande peut indiquer une relation de groupage entre de multiples états TCI activés et un point de code d'un champ TCI.
PCT/CN2019/098823 2019-08-01 2019-08-01 Techniques d'activation d'états d'indication de configuration de transmission dans des communications sans fil WO2021016980A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/098823 WO2021016980A1 (fr) 2019-08-01 2019-08-01 Techniques d'activation d'états d'indication de configuration de transmission dans des communications sans fil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/098823 WO2021016980A1 (fr) 2019-08-01 2019-08-01 Techniques d'activation d'états d'indication de configuration de transmission dans des communications sans fil

Publications (1)

Publication Number Publication Date
WO2021016980A1 true WO2021016980A1 (fr) 2021-02-04

Family

ID=74229491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/098823 WO2021016980A1 (fr) 2019-08-01 2019-08-01 Techniques d'activation d'états d'indication de configuration de transmission dans des communications sans fil

Country Status (1)

Country Link
WO (1) WO2021016980A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022236703A1 (fr) * 2021-05-11 2022-11-17 Apple Inc. Signal de référence de positionnement apériodique et semi-persistant et espaces de mesure
WO2022246718A1 (fr) * 2021-05-27 2022-12-01 Qualcomm Incorporated Techniques de comptage d'états d'indicateurs de configuration de transmissions conjoints actives vers une capacité d'équipement utilisateur
WO2023284796A1 (fr) * 2021-07-16 2023-01-19 维沃移动通信有限公司 Procédé et appareil d'indication d'état de tci, terminal, et dispositif côté réseau
WO2023010511A1 (fr) * 2021-08-06 2023-02-09 Qualcomm Incorporated Activation et désactivation de configuration de faisceau sous plusieurs opérations de point de d'émission-réception (trp)
WO2023173284A1 (fr) * 2022-03-15 2023-09-21 Qualcomm Incorporated Techniques de configuration de communications sur la base d'états d'indicateur de configuration de transmission unifiés

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110049561A (zh) * 2018-01-16 2019-07-23 华硕电脑股份有限公司 不连续传送指示的准共址关联指示的方法和设备

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110049561A (zh) * 2018-01-16 2019-07-23 华硕电脑股份有限公司 不连续传送指示的准共址关联指示的方法和设备

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "MAC CE signaling impact of enhanced TCI indication framework", 3GPP DRAFT; R2-1907156 MAC CE SIGNALING IMPACT OF ENHANCED TCI INDICATION FRAMEWORK, vol. RAN WG2, 2 May 2019 (2019-05-02), Reno, Nevada, US, pages 1 - 3, XP051711448 *
ERICSSON: "On multi-TRP and multi-panel", 3GPP DRAFT; R1-1907697 ON MULTI-TRP AND MULTI-PANEL, vol. RAN WG1, 13 May 2019 (2019-05-13), Reno, US, pages 1 - 24, XP051729002 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022236703A1 (fr) * 2021-05-11 2022-11-17 Apple Inc. Signal de référence de positionnement apériodique et semi-persistant et espaces de mesure
WO2022246718A1 (fr) * 2021-05-27 2022-12-01 Qualcomm Incorporated Techniques de comptage d'états d'indicateurs de configuration de transmissions conjoints actives vers une capacité d'équipement utilisateur
WO2023284796A1 (fr) * 2021-07-16 2023-01-19 维沃移动通信有限公司 Procédé et appareil d'indication d'état de tci, terminal, et dispositif côté réseau
WO2023010511A1 (fr) * 2021-08-06 2023-02-09 Qualcomm Incorporated Activation et désactivation de configuration de faisceau sous plusieurs opérations de point de d'émission-réception (trp)
WO2023173284A1 (fr) * 2022-03-15 2023-09-21 Qualcomm Incorporated Techniques de configuration de communications sur la base d'états d'indicateur de configuration de transmission unifiés

Similar Documents

Publication Publication Date Title
US11871444B2 (en) Techniques for prioritizing transmission of types of wireless communications
US11889481B2 (en) Techniques for resource block allocation in wireless communications
WO2021016980A1 (fr) Techniques d'activation d'états d'indication de configuration de transmission dans des communications sans fil
US20220338249A1 (en) Techniques for configuring random access occasions in wireless communications
US11778609B2 (en) Techniques for beam sweep based semi-persistent scheduling / configured grant activation
WO2021150644A1 (fr) Techniques pour des limites de canal physique de contrôle descendant (pdcch) pour de multiples cellules programmant une cellule dans un système de communication sans fil
US11553482B2 (en) Techniques for determining resources for repetitions in wireless communications
US20220278784A1 (en) Techniques for indicating uplink transmission capabilities in wireless communications
US11792804B2 (en) Techniques for resource allocation in an integrated access and backhaul (IAB) system
US11490269B2 (en) Techniques for beam sweep power control in wireless communication systems
WO2021150343A1 (fr) Techniques de rapport de différence de temps pour différents blocs de signaux de synchronisation (ssb) dans un système de communication sans fil
US20230121713A1 (en) Techniques for beamforming for multiple component carriers in wireless communications
US11552734B2 (en) Techniques for bi-direction preemption indication transmissions
US20210227569A1 (en) Techniques for physical downlink control channel (pdcch) limits for multiple cells scheduling one cell in a wireless communication system
US20220322391A1 (en) Techniques for pucch repetition based on pdsch repetition
US11716185B2 (en) Techniques for quasi co-location (QCL) indication in an integrated access and backhaul (IAB) system
WO2021212350A1 (fr) Technique d'indication de partie de bande passante pour signaux de référence d'informations d'état de canal à puissance non nulle dans un système de communication sans fil
US20230106376A1 (en) Techniques for using beams in multiple transport block scheduling
US20220338242A1 (en) Techniques for determining feedback timing capability in sidelink wireless communications
US20210250984A1 (en) Techniques for user equipment (ue) assisted uplink resource modification in a wireless communication system
WO2022213046A1 (fr) Techniques pour répétition de pucch basées sur une répétition de pdcch
WO2023055946A1 (fr) Techniques d'utilisation de faisceaux dans une planification de blocs de transport multiples

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19940066

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19940066

Country of ref document: EP

Kind code of ref document: A1