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US 11,888,776 B2Granted
Method and apparatus for transmission of sounding reference signal for positioning in RRC_INACTIVE in supplementary uplink in mobile wireless communication system
AssigneesBlackpin Inc., Soenghun Kim
InventorSoenghun Kim
Life of this patent
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Abstract
A method and apparatus for positioning in a mobile communication system are provided. Method for positioning includes receiving a first type1 assistance data, receiving a type2 assistance data, determining whether the second type1 assistance data is valid, receiving a RRCRelease, selecting a first cell, transmitting positioning SRS in RRC_INACTIVE, stopping transmission of SRS when a RRC message including a terminal identifier is received in the first cell and transmitting a specific LPP message.
Claims2
A method by a terminal, the method comprising:
- receiving, by the terminal from a base station, a first type1 assistance data, the type1 assistance data includes a type1 identifier and one or more Positioning Reference Signal (PRS) resource set information;
- receiving, by the terminal from the base station, a type2 assistance data, the type2 assistance data includes a validity information and a second type1 assistance data;
- determining, by the terminal based on New Radio (NR) Cell Global Identity of serving cell, whether the second type1 assistance data is valid;
- receiving, by the terminal from the base station, a RRCRelease, the RRCRelease includes a first information and a second information, the first information includes configuration of Sounding Reference Signal (SRS) in RRC_INACTIVE and the second information includes information for Bandwidth Part (BWP);
- selecting by the terminal a first cell;
- transmitting, by the terminal in the first cell based on the first information and the second information, positioning SRS in RRC_INACTIVE;
- stopping, by the terminal, transmission of SRS when a Radio Resource Control (RRC) message including a terminal identifier is received in the first cell;
- and
- transmitting, by the terminal, a specific LTE Positioning Protocol (LPP) message,
- wherein at least a part of the specific LPP message is transmitted in a first Medium Access Control (MAC) Protocol Data Unit (PDU), the first MAC PDU includes a ResumeRequest, the first MAC PDU includes a first MAC subheader and a first MAC Service Data Unit (SDU) and a second MAC subheader and a second MAC SDU in sequence, the part of the specific LPP message is included in the second MAC SDU, the ResumeRequest is included in the first MAC SDU.
7 more elements
A terminal in a wireless communication system, the terminal comprising:
- a transceiver configured to transmit and receive a signal;
- and
- a controller configured to control the transceiver to:
- receive from a base station a first type1 assistance data, the type1 assistance data includes a type1 identifier and one or more Position Reference Signal (PRS) resource set information;
- receive from the base station a type2 assistance data, the type2 assistance data includes a validity information and a second type1 assistance data;
- determine based on New Radio (NR) Cell Global Identity of serv cell whether the second type1 assistance data is valid;
- receive from the base station a RRCRelease, the RRCRelease includes a first information and a second information, the first information includes configuration of Sounding Reference Signal (SRS) in RRC_INACTIVE and the second information includes information for Bandwidth Part (BWP);
- select a first cell;
- transmit in the first cell based on the first information and the second information, positioning SRS in RRC_INACTIVE;
- stop transmission of SRS when a RRC message including a terminal identifier is received in the first cell;
- and
- transmit a specific LTE Positioning Protocol (LPP) message,
- wherein at least a part of the specific LPP message is transmitted in a first Medium Access Control (MAC) Protocol Data Unit (PDU), the first MAC PDU includes a ResumeRequest, the first MAC PDU includes a first MAC subheader and a first MAC Service Data Unit (SDU) and a second MAC subheader and a second MAC SDU in sequence, the part of the specific LPP message is included in the second MAC SDU, the ResumeRequest is included in the first MAC SDU.
10 more elements
Dependencies are inferred from the claim text.