WO2022052482A1 - 接入方法、共享载波基站、用户设备及记录介质 - Google Patents

接入方法、共享载波基站、用户设备及记录介质 Download PDF

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Publication number
WO2022052482A1
WO2022052482A1 PCT/CN2021/090595 CN2021090595W WO2022052482A1 WO 2022052482 A1 WO2022052482 A1 WO 2022052482A1 CN 2021090595 W CN2021090595 W CN 2021090595W WO 2022052482 A1 WO2022052482 A1 WO 2022052482A1
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Prior art keywords
user equipment
base station
random access
carrier base
shared carrier
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PCT/CN2021/090595
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English (en)
French (fr)
Inventor
赵晓垠
谢伟良
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中国电信股份有限公司
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Application filed by 中国电信股份有限公司 filed Critical 中国电信股份有限公司
Priority to EP21865543.9A priority Critical patent/EP4195858A4/en
Priority to JP2023515838A priority patent/JP7550969B2/ja
Publication of WO2022052482A1 publication Critical patent/WO2022052482A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points

Definitions

  • the present application is based on the CN application number 202010940314.5 and the filing date is September 9, 2020, and claims its priority.
  • the disclosure of the CN application is hereby incorporated into the present application as a whole.
  • the present disclosure belongs to the technical field of mobile communication, and in particular, relates to an access method, a shared carrier base station, user equipment and a recording medium.
  • the mainstream solution of the fifth-generation mobile communication (5G) shared network is that multiple operators share a physical base station, and the physical base station transmits data back to the core network independently constructed by each operator.
  • 5G fifth-generation mobile communication
  • the shared network is divided according to the carrier sharing mode, which can be divided into two modes: shared carrier and independent carrier.
  • independent carrier means that although all operators share base station equipment, they can only use their own frequencies, that is, frequencies are not shared; shared carrier means that all operators share all their frequencies for common use. For example, two operators share one cell (one carrier) and broadcast two PLMN numbers at the same time.
  • the design of introducing uplink and downlink decoupling in 5G New Radio (NR) can configure multiple uplink carriers (links) in a cell, including uplink (UL) and supplementary uplink (SUL),
  • the SUL can be an existing LTE uplink carrier, which can effectively improve the uplink coverage.
  • SUL is often the existing LTE uplink carrier, and the frequency band is lower than the NR frequency band, thereby improving the uplink transmission performance of edge users.
  • the two operators can respectively use their own non-shared uplink carrier as the SUL.
  • One of the purposes of the present disclosure is to provide a user equipment access method in an initial shared carrier base station, a shared carrier base station, user equipment and a recording medium, which can realize setting different SUL connections for different operators when the shared carrier uplink and downlink are decoupled. Enter the strategy to identify independent random response resources for different operators.
  • a method for user equipment access in a shared carrier base station where the carrier of the shared carrier base station is shared by two or more operators, and the uplink of the shared carrier base station includes: Uplink is UL and supplementary uplink is SUL, and the method includes: the shared carrier base station broadcasts, to the user equipment, a reference signal received power threshold corresponding to the affiliation of the user equipment to the operator and a reference signal receiving power threshold for Calculate the parameter value of the random access wireless network temporary identifier; the shared carrier base station broadcasts the random access wireless network calculated based on the parameter value to the user equipment in response to the random access request from the user equipment a random access response scrambled by a temporary identifier; and the shared carrier base station establishes a radio resource control connection with the user equipment in response to a radio resource control, ie, RRC connection request, from the user equipment.
  • a radio resource control ie, RRC connection request
  • a shared carrier base station comprising: a memory having instructions stored thereon; and a processor configured to execute the instructions stored on the memory to perform the above method.
  • a shared carrier base station is provided, the carrier of the shared carrier base station is shared by two or more operators, and the uplink of the shared carrier base station includes an uplink, that is, a UL and a supplementary uplink.
  • the link is SUL
  • the shared carrier base station includes a transceiver and a control device, wherein the shared carrier base station is configured to use the transceiver to broadcast to the user equipment corresponding to the user equipment's attribution to the operator
  • the reference signal received power threshold and the parameter value used to calculate the random access wireless network temporary identity the shared carrier base station is configured to receive the random access request from the user equipment through the transceiver, and use the The transceiver apparatus broadcasts the random access response scrambled by the control apparatus using the random access wireless network temporary identifier calculated based on the parameter value to the user equipment, and the shared carrier base station is configured to respond to the random access response from the
  • the radio resource control of the user equipment that is, the RRC connection request, establishes a radio resource control connection with the user equipment.
  • a method for user equipment access in a shared carrier base station where the carrier of the shared carrier base station is shared by two or more operators, and the uplink of the shared carrier base station includes: Uplink (UL) and Supplementary Uplink (SUL), the method includes: receiving, by the user equipment, a reference signal received power threshold corresponding to the user equipment's affiliation for the operator broadcast by the shared carrier base station; A parameter value used to calculate the random access wireless network temporary identifier; the user equipment measures the received power of the reference signal, and compares the received power value of the reference signal obtained by the measurement with the received power threshold of the reference signal received from the shared carrier base station Carry out a comparison, and determine whether to send a random access request on the uplink or on the supplementary uplink according to the comparison result; the user equipment monitors the random access response from the shared base station, and uses the received parameter value.
  • the calculated random access wireless network temporary identifier descrambles the random access response; and the user equipment establishes a radio resource control connection
  • a user equipment for a shared carrier base station comprising: a memory having instructions stored thereon; and a processor configured to execute the instructions stored on the memory to perform the above Methods.
  • a user equipment for a shared carrier base station where the carrier of the shared carrier base station is shared by two or more operators, and the uplink of the shared carrier base station includes an uplink That is, UL and Supplementary Uplink, or SUL, wherein the user equipment includes: a transceiver module configured to receive the reference signal received power broadcast by the shared carrier base station and corresponding to the affiliation of the user equipment to the operator a threshold value and a parameter value used to calculate the random access wireless network temporary identifier; a measurement module, configured to measure the received power of the reference signal; The received reference signal received power threshold is compared, and according to the comparison result, it is determined whether to send a random access request on the uplink or on the supplementary uplink; the monitoring and descrambling module is configured to monitor the random access from the shared base station.
  • a transceiver module configured to receive the reference signal received power broadcast by the shared carrier base station and corresponding to the affiliation of the user equipment to the operator a threshold value and a parameter value used to calculate the random access wireless network temporary
  • a computer-readable recording medium storing computer-executable instructions that, when executed by a computer, cause the computer to perform the method according to the above .
  • different SUL access policies can be set for different operators during uplink and downlink decoupling of shared carriers, and independent random response resources can be identified for different operators, thereby improving the reliability of different operators.
  • the flexibility and difference of SUL carrier bearer also ensure the independence and uniqueness of random response resources of different operators.
  • FIG. 1 shows a schematic diagram of a shared carrier base station.
  • Figure 2 shows a schematic coverage of UL/SUL carriers of a user equipment access network in a base station of a single operator.
  • Figure 3 shows a schematic coverage of the UL/SUL carrier of the user equipment access network in a shared carrier base station shared by two operators.
  • FIG. 4 illustrates a method for user equipment access in a shared carrier base station according to some embodiments of the present disclosure.
  • FIG. 5 shows a schematic block diagram of a shared carrier base station 3 according to an embodiment of the present disclosure.
  • 6 is a method for user equipment access in a shared carrier base station according to some embodiments of the present disclosure.
  • Figure 7 shows a schematic block diagram of a user equipment for a shared carrier base station according to some embodiments of the present disclosure.
  • FIG. 1 shows a schematic diagram of a shared carrier base station.
  • operator A and operator B share wireless networks and carriers, and build bearer networks and core networks independently.
  • User a of operator A and user b of operator B access the wireless network through the shared carrier of the shared network.
  • the wireless network distinguishes the user data of different operators and then transmits them back to their respective core networks, and transmits the data of user a back.
  • the base station can notify the mobile network IDs of multiple operators in the broadcast message SIB1 (System Information Block), that is, PLMN (Public Land Mobile Network, Public Land Mobile Network) )ID.
  • SIB1 System Information Block
  • the UE User Equipment, user equipment receives the broadcast message SIB1 sent by the base station, selects the network according to the PLMN ID in the broadcast message, and reports the PLMN ID (PLMN identity) of the selected network to the base station.
  • PLMN ID PLMN identity
  • Figure 2 shows a schematic coverage of UL/SUL carriers of a user equipment access network in a base station of a single operator.
  • the 5G standard NR operates in a wide frequency range from sub-1GHz up to 100GHz. Coverage at high frequencies will be a problem.
  • One way to mitigate this is to introduce supplemental uplink (SUL) carriers, which are primarily motivated by uplink coverage that improves NR deployed in relatively high frequency bands.
  • SUL carriers are deployed in low frequency regions, eg, in the LTE band. In this way, the uplink coverage of the NR band can be comparable to that in LTE.
  • the SUL carrier and the NR UL/DL (downlink) carrier are in the same cell. In this case, the SUL carrier is more like belonging to a separate UL configuration.
  • the UE may maintain two UL configurations, but the UE may keep only one UL configuration active.
  • Figure 2 illustrates the coverage difference between NR UL carrier and SUL carrier. Compared to SUL carriers, NR UL carriers cover a smaller area.
  • the coverage of the operator's UL carrier is indicated by a solid line, and the coverage of the operator's SUL carrier is indicated by a broken line. Since the SUL carrier is deployed in a lower frequency region, the coverage of the SUL carrier is larger than that of the UL carrier.
  • FIG. 3 shows an exemplary coverage area of an exemplary UL/SUL carrier for user equipment to access the network in a shared carrier base station shared by two operators.
  • FIG. 3 An example in which a base station is shared by two operators (ie, operator A and operator B) is illustrated in the diagram of FIG. 3 .
  • the coverage of the UL carrier of the shared carrier base station 3 is represented by a solid line
  • the coverage of the SUL carrier of operator A is represented by a dashed line
  • the coverage of the SUL carrier of operator B is represented by a dashed-dotted line. Since the SUL carriers of operator A and operator B are both deployed in more areas than the frequency of the shared UL carrier, the coverage area of the SUL carrier of operator A and operator B is larger than that of the UL carrier.
  • the SULs of different operators use their own non-shared carriers, the coverage of the SUL carriers of different operators is not the same, and the original services are also different. Since the SUL carriers of the two operators are not shared carriers, and sometimes belong to different frequency bands with different coverage, there are often other original services in this frequency band, so different access policies need to be set in the initial SUL access stage.
  • users of different operators monitor the DCI format 1_0 scrambled with RA-RNTI sent by the base station.
  • the calculation formula of RA-RNTI in the current protocol can only distinguish between SUL carriers and non-SUL carriers, but cannot distinguish between SUL carriers different carrier carriers.
  • FIG. 4 illustrates a method for user equipment access in a shared carrier base station according to some embodiments of the present disclosure.
  • the carrier of the shared carrier base station 3 is shared by two or more operators, and the uplink of the shared carrier base station includes the uplink (UL) and the supplementary uplink (SUL).
  • the shared carrier base station 3 broadcasts to the user equipment UE the attribution of the user equipment UE to the operator (that is, which operator the user equipment UE belongs to, in some embodiments, whether the user equipment UE belongs to the operator A or the operator B)
  • the reference signal received power RSRP threshold is a threshold used by the user equipment UE to determine whether to perform UL or SUL access.
  • the user equipment UE_A of operator A broadcasts the RSRP_A for the user equipment UE_A to decide whether it is for UL or SUL access and for calculating random access
  • step S403 the shared carrier base station 3 determines whether a random access request from the user equipment UE is received. When the judgment result is NO, it returns to step S401. When the determination result is YES, the process proceeds to step S405.
  • step S405 in response to the random access request from the user equipment UE, the shared carrier base station 3 broadcasts the random access scrambled by the random access wireless network temporary identifier RA-RNTI calculated based on the parameter value ul_plmn_id to the user equipment UE. input response.
  • step S407 it is determined whether a radio resource control (RRC) connection request from the user equipment UE is received, and if the determination result is no, the process returns to step S401.
  • RRC radio resource control
  • step S409 the shared carrier base station 3 establishes a radio resource control connection with the user equipment UE in response to the RRC connection request from the user equipment UE, thereby completing the random access procedure of the user equipment UE.
  • step S401 and step S405 are shown in FIG. 4 , but it is not limited to this, and step S401 and step S405 may also be performed independently.
  • step S401 may be performed in a prescribed period
  • step S405 may be performed by receiving a random access request from the user equipment UE by the shared carrier base station 3 as a trigger.
  • the shared carrier base station 3 also broadcasts an instruction in step S402 to notify the user equipment UE to perform reference signal received power measurement.
  • Step S402 may be performed in a predetermined cycle, or may be performed after step S401.
  • the belonging of the user equipment UE to the operator is identified by the PLMN identification, and the shared carrier base station 3 broadcasts the reference signal received power RSRP threshold and the parameter value ul_plmn_id to the user equipment UE together with the corresponding PLMN identification.
  • the data packet containing RSRP_A, the parameter value ul_plmn_id_A and the corresponding PLMN identifier plmn_A is broadcast to the user equipment UE
  • the data packet containing RSRP_B and the parameter value ul_plmn_id_B and the corresponding PLMN identifier plmn_B is broadcast to the user equipment UE.
  • the manner of determining the affiliation of the user equipment UE with respect to the operator is not limited to this, and any other manner may be used to determine the affiliation of the user equipment UE.
  • the random access wireless network temporary identifier RA-RNTI is obtained by the following formula:
  • RA-RNTI 1+s_id+14 ⁇ t_id+14 ⁇ 80 ⁇ f_id+14 ⁇ 80 ⁇ 8 ⁇ ul_carrier_id+n ⁇ ul_plmn_id,
  • s_id is the index of the first Orthogonal Frequency Division Multiplexing (OFDM) symbol of the physical random access channel (PRACH);
  • t_id is the index of the first time slot of the physical random access channel in the system frame;
  • f_id is the The index of the frequency domain where the physical random access channel is located;
  • ul_carrier_id is 0 when the user equipment UE selects the uplink, and 1 when the user equipment UE selects the supplementary uplink;
  • n is a positive integer
  • ul_plmn_id is a non-negative integer and for different The ul_plmn_id corresponding to the operators are different from each other, 0 ⁇ s_id ⁇ 14, 0 ⁇ t_id ⁇ 80, 0 ⁇ f_id ⁇ 8.
  • 1 bit or 2 bits may be allocated for the parameter ul_plmn_id, in the case of 1 bit, it can accommodate two operators, namely 0 and 1 respectively; in the case of 2 bits, it can accommodate four operators, namely 00, 01, 10, and 11, respectively.
  • FIG. 5 shows a schematic block diagram of a shared carrier base station 3 according to an embodiment of the present disclosure.
  • the carrier of the shared carrier base station 3 is shared by two or more operators, and the uplink of the shared carrier base station 3 includes the uplink (UL) and the supplementary uplink (SUL).
  • the shared carrier base station 3 includes a transceiver device 51 and a control device 52 .
  • the transceiver 51 performs baseband and radio frequency processing on the signal, and then sends it to the antenna through the radio frequency feeder for transmission.
  • the shared carrier base station 3 uses the transceiver 51 to broadcast to the user equipment UE the reference signal received power (that is, the RSRP) threshold corresponding to the affiliation of the user equipment UE to the operator, and the threshold used to calculate the random access wireless network temporary identifier (that is, the RA-RNTI). ) parameter value ul_plmn_id.
  • the shared carrier base station 3 receives the random access request from the user equipment UE through the transceiver 51, and uses the transceiver 51 to broadcast the random access wireless network temporary identifier RA- calculated by the control device 52 based on the parameter value ul_plmn_id to the user equipment UE. Random access response scrambled by RNTI.
  • the shared carrier base station 3 establishes a radio resource control connection with the user equipment UE in response to a radio resource control (i.e. RRC) connection request from the user equipment UE.
  • RRC radio resource control
  • the shared carrier base station 3 also uses the transceiver 51 to notify the user equipment UE to measure the received power of the reference signal.
  • the affiliation of the user equipment UE to the operator is identified by the PLMN identifier, and the shared carrier base station 3 sends the reference signal received power RSRP threshold and the parameter value ul_plmn_id together with the corresponding PLMN identifier to the user equipment through the transceiver 51 UE broadcast.
  • the data packet containing RSRP_A, the parameter value ul_plmn_id_A and the corresponding PLMN identifier plmn_A is broadcast to the user equipment UE
  • the data packet containing RSRP_B and the parameter value ul_plmn_id_B and the corresponding PLMN identifier plmn_B is broadcast to the user equipment UE.
  • the manner in which the user equipment UE determines the attribution of the operator is not limited to this, and any other manner may be used to determine the attribution of the user equipment UE.
  • the random access wireless network temporary identifier RA-RNTI is obtained by the following formula:
  • RA-RNTI 1+s_id+14 ⁇ t_id+14 ⁇ 80 ⁇ f_id+14 ⁇ 80 ⁇ 8 ⁇ ul_carrier_id+n ⁇ ul_plmn_id,
  • s_id is the index of the first Orthogonal Frequency Division Multiplexing (OFDM) symbol of the physical random access channel (PRACH);
  • t_id is the index of the first time slot of the physical random access channel in the system frame;
  • f_id is the The index of the frequency domain where the physical random access channel is located;
  • ul_carrier_id is 0 when the user equipment UE selects the uplink, and 1 when the user equipment UE selects the supplementary uplink;
  • n is a positive integer
  • ul_plmn_id is a non-negative integer and for different The ul_plmn_id corresponding to the operators are different from each other, 0 ⁇ s_id ⁇ 14, 0 ⁇ t_id ⁇ 80, 0 ⁇ f_id ⁇ 8.
  • 1 bit or 2 bits may be allocated for the parameter ul_plmn_id, in the case of 1 bit, it can accommodate two operators, namely 0 and 1 respectively; in the case of 2 bits, it can accommodate four operators, namely 00, 01, 10, and 11, respectively.
  • the carrier of the shared carrier base station 3 is shared by two or more operators, and the uplink of the shared carrier base station 3 includes the uplink (UL) and the supplementary uplink (SUL).
  • the user equipment UE receives the reference signal received power RSRP threshold corresponding to the user equipment's affiliation to the operator broadcasted by the shared carrier base station 3 and is used to calculate the random access wireless network temporary
  • the parameter value ul_plmn_id that identifies the RA-RNTI.
  • the reference signal received power RSRP threshold is a threshold used by the user equipment UE to determine whether to perform UL or SUL access.
  • the user equipment UE_A when the user equipment UE is the user equipment UE_A of the operator A, the user equipment UE_A only receives the RSRP_A broadcast by the shared carrier base station 3 and the user equipment UE_A determines whether to perform UL or SUL access and uses In calculating the parameter value ul_plmn_id_A of the random access wireless network temporary identifier RA-RNTI; in the case that the user equipment UE is the user equipment UE_B of the operator B, the user equipment UE_B only receives the broadcast by the shared carrier base station 3 and is determined by the user equipment UE_B RSRP_B for UL or SUL access by itself and the parameter value ul_plmn_id_B for calculating the random access wireless network temporary identifier RA-RNTI.
  • step S603 the user equipment UE measures the received power of the reference signal, compares the measured received power of the reference signal with the RSRP threshold of the received power of the reference signal received from the shared carrier base station 3, and determines according to the comparison result Random access requests are also sent on the uplink or on the supplemental uplink.
  • step S605 the user equipment UE monitors the random access response from the shared base station 3, and uses the random access wireless network temporary identifier RA-RNTI calculated by using the received parameter value ul_plmn_id to respond to the received random access response. descramble.
  • step S607 the user equipment UE establishes a radio resource control connection with the shared carrier base station 3 according to the descrambled access information, thereby completing the random access process of the user equipment UE.
  • the user equipment UE measures the received power of the reference signal in response to an instruction from the shared carrier base station 3 . In other embodiments, the user equipment UE measures the reference signal received power in response to receiving the reference signal received power RSRP threshold and the parameter value ul_plmn_id broadcast from the shared carrier base station 3 .
  • the affiliation of the user equipment UE to the operator is identified by the PLMN identity, and the user equipment UE receives the reference signal received power RSRP threshold corresponding to its own PLMN identity and the parameter value ul_plmn_id from the shared carrier base station 3 .
  • the user equipment when the measured reference signal received power value is greater than or equal to the RSRP threshold of the reference signal received power received from the shared carrier base station 3, the user equipment sends a random access request in the uplink UL; When the obtained reference signal received power value is less than the reference signal received power RSRP threshold value received from the shared carrier base station 3, the user equipment UE sends a random access request in the supplementary uplink SUL.
  • the random access wireless network temporary identifier RA-RNTI is obtained by the following formula:
  • RA-RNTI 1+s_id+14 ⁇ t_id+14 ⁇ 80 ⁇ f_id+14 ⁇ 80 ⁇ 8 ⁇ ul_carrier_id+n ⁇ ul_plmn_id,
  • s_id is the index of the first Orthogonal Frequency Division Multiplexing (OFDM) symbol of the physical random access channel (PRACH);
  • t_id is the index of the first time slot of the physical random access channel in the system frame;
  • f_id is the The index of the frequency domain where the physical random access channel is located;
  • ul_carrier_id is 0 when the user equipment UE selects the uplink, and 1 when the user equipment UE selects the supplementary uplink;
  • n is a positive integer
  • ul_plmn_id is a non-negative integer and for different The ul_plmn_id corresponding to the operators are different from each other, 0 ⁇ s_id ⁇ 14, 0 ⁇ t_id ⁇ 80, 0 ⁇ f_id ⁇ 8.
  • FIG. 7 shows a schematic structural block diagram of a user equipment for a shared carrier base station according to some embodiments of the present disclosure.
  • the carrier of the shared carrier base station 3 is shared by two or more operators, and the uplink of the shared carrier base station 3 includes the uplink (UL) and the supplementary uplink (SUL).
  • UL uplink
  • SUL supplementary uplink
  • the user equipment 7 includes a transceiver module 71 , a measurement module 72 , a determination module 73 , a monitoring and descrambling module 74 and a control module 75 .
  • the transceiver module 71 receives the reference signal received power threshold RSRP broadcasted by the shared carrier base station 3 and corresponds to the user equipment 7 (ie UE) for the operator's affiliation and the parameter value used to calculate the random access wireless network temporary identifier RA-RNTI .
  • the measurement module 72 measures the received power of the reference signal.
  • the determination module 73 compares the measured reference signal received power value with the reference signal received power RSRP threshold value received from the shared carrier base station 3, and determines whether to transmit random access on the uplink or on the supplementary uplink according to the comparison result. input request.
  • the monitoring and descrambling module 74 monitors the random access response from the shared base station 3, and uses the random access wireless network temporary identifier RA-RNTI calculated from the received parameter value ul_plmn_id to descramble the random access response.
  • the control module 75 establishes a radio resource control connection with the shared carrier base station 3 according to the descrambled access information.
  • the measurement module 72 of the user equipment 7 measures the received power of the reference signal in response to the transceiver module 71 receiving an instruction from the shared carrier base station 3 . In other embodiments, the measurement module 72 of the user equipment 7 measures the reference signal received power in response to receiving the reference signal received power RSRP threshold and the parameter value ul_plmn_id broadcast from the shared carrier base station 3 .
  • the affiliation of the user equipment 3 for the operator is identified by the PLMN identifier, and the user equipment 3 receives the reference signal received power RSRP threshold corresponding to its own PLMN identifier and the parameter value ul_plmn_id from the shared carrier base station 3 .
  • the user equipment 7 when the measured reference signal received power value is greater than or equal to the RSRP threshold of the reference signal received power received from the shared carrier base station 3, the user equipment 7 sends a random access request in the uplink UL; When the measured reference signal received power value is less than the reference signal received power RSRP threshold value received from the shared carrier base station, the user equipment 7 sends a random access request in the supplementary uplink SUL.
  • the random access wireless network temporary identifier RA-RNTI is obtained by the following formula:
  • RA-RNTI 1+s_id+14 ⁇ t_id+14 ⁇ 80 ⁇ f_id+14 ⁇ 80 ⁇ 8 ⁇ ul_carrier_id+n ⁇ ul_plmn_id,
  • s_id is the index of the first Orthogonal Frequency Division Multiplexing (OFDM) symbol of the physical random access channel (PRACH);
  • t_id is the index of the first time slot of the physical random access channel in the system frame;
  • f_id is the The index of the frequency domain where the physical random access channel is located;
  • ul_carrier_id is 0 when the user equipment UE selects the uplink, and 1 when the user equipment UE selects the supplementary uplink;
  • n is a positive integer
  • ul_plmn_id is a non-negative integer and for different The ul_plmn_id corresponding to the operators are different from each other, 0 ⁇ s_id ⁇ 14, 0 ⁇ t_id ⁇ 80, 0 ⁇ f_id ⁇ 8.
  • the embodiments of the present disclosure it is possible to set different SUL access policies for different operators during uplink and downlink decoupling of shared carriers, and identify independent random response resources for different operators, thereby improving the efficiency of different operators.
  • the flexibility and difference of the SUL carrier bearer of different operators also ensure the independence and uniqueness of random response resources of different operators.
  • the present disclosure is embodied as a system, apparatus, method, or computer-readable medium (eg, a non-transitory storage medium) as a computer program product. Accordingly, the present disclosure may be implemented in various forms, such as an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, microprogram code, etc.), or both software and hardware, where Hereinafter will be referred to as a "circuit", “module” or “system”. Furthermore, the present disclosure may also be embodied in any tangible media form as a computer program product having computer-usable program code stored thereon.
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of program code, which comprises one or more executable instructions for implementing the specified logical function(s).
  • the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks illustrated in connection may, in fact, be executed concurrently, or in some cases may be executed in the reverse order illustrated, depending upon the functionality involved.
  • each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations can be implemented by special purpose hardware-based systems, or by combinations of special purpose hardware and computer instructions, to perform a specific function or operation.

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  • Mobile Radio Communication Systems (AREA)

Abstract

本公开涉及接入方法、共享载波基站、用户设备及记录介质。在共享载波基站中用户设备接入的方法，共享载波基站的载波由两个以上运营商进行共享，共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL，方法包括：共享载波基站向用户设备广播与用户设备针对运营商的归属对应起来的参考信号接收功率阈值以及用于计算随机接入无线网络临时标识的参数值；共享载波基站响应于来自用户设备的随机接入请求，向用户设备广播利用基于参数值计算出的随机接入无线网络临时标识加扰后的随机接入响应；以及共享载波基站响应于来自用户设备的无线资源控制即RRC连接请求，与用户设备建立无线资源控制连接。

Description

接入方法、共享载波基站、用户设备及记录介质
本申请是以CN申请号为202010940314.5，申请日为2020年9月9日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开属于移动通信技术领域，尤其涉及一种接入方法、共享载波基站、用户设备及记录介质。
背景技术
第五代移动通信(5G)共享网络的主流方案为多个运营商共享一个物理基站，物理机站将数据回传到各个运营商各自独立建设的核心网。
按照载波共享方式对共享网络进行划分，可分为共享载波和独立载波两种方式。其中，独立载波指虽然各方运营商共享基站设备，但仍仅能使用各方运营商自己的频率，即频率不共享；共享载波指各方运营商将其所有频率共享出来，共同使用。例如，两家运营商共用一个小区(一个载波)，同时广播两个PLMN号。
5G新空口(New Radio，NR)中引入上下行解耦的设计可在一个小区中配置多个上行的载波(链路)，其中包括上行链路(UL)和补充上行链路(SUL)，SUL可以是现有LTE上行载波，这样可以有效提升上行覆盖范围。SUL往往是现有LTE上行载波，频段比NR频段低，从而改善边缘用户上行传输性能。在共享载波中，两家运营商可分别采用各自的非共享上行载波来作为SUL。
公开内容
本公开的目的之一在于提供一种初共享载波基站中用户设备接入方法、共享载波基站、用户设备及记录介质，能够在共享载波上下行解耦时实现为不同运营商设置不同的SUL接入策略，针对不同运营商，标识独立的随机响应资源。
在下文中给出了关于本公开的简要概述，以便提供关于本公开的一些方面的基本理解。但是，应当理解，这个概述并不是关于本公开的穷举性概述。它并不是意图用来确定本公开的关键性部分或重要部分，也不是意图用来限定本公开的范围。其目的仅仅是以简化的形式给出关于本公开的某些概念，以此作为稍后给出的更详细描述的前序。
根据本公开的一个方面，提供了一种在共享载波基站中用户设备接入的方法，所述共享载波基站的载波由两个以上运营商进行共享，所述共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL，所述方法包括：所述共享载波基站向所述用户设备广播与所述用户设备针对运营商的归属对应起来的参考信号接收功率阈值以及用于计算随机接入无线网络临时标识的参数值；所述共享载波基站响应于来自所述用户设备的随机接入请求，向所述用户设备广播利用基于所述参数值计算出的随机接入无线网络临时标识加扰后的随机接入响应；以及所述共享载波基站响应于来自所述用户设备的无线资源控制即RRC连接请求，与所述用户设备建立无线资源控制连接。
根据本公开的一个方面，提供了一种共享载波基站，包括：存储器，其上存储有指令；以及处理器，被配置为执行存储在所述存储器上的指令，以执行上述的方法。
根据本公开的一个方面，提供了一种共享载波基站，所述共享载波基站的载波由两个以上运营商进行共享，所述共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL，所述共享载波基站包括收发装置和控制装置，其中，所述共享载波基站被配置为利用所述收发装置向所述用户设备广播与所述用户设备针对运营商的归属对应起来的参考信号接收功率阈值以及用于计算随机接入无线网络临时标识的参数值，所述共享载波基站被配置为通过所述收发装置接收来自所述用户设备的随机接入请求，并利用所述收发装置向所述用户设备广播由所述控制装置利用基于所述参数值计算出的随机接入无线网络临时标识加扰后的随机接入响应，所述共享载波基站被配置为响应于来自所述用户设备的无线资源控制即RRC连接请求，与所述用户设备建立无线资源控制连接。
根据本公开的一个方面，提供了一种在共享载波基站中用户设备接入的方法，所述共享载波基站的载波由两个以上运营商进行共享，所述共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL，所述方法包括：所述用户设备接收由所述共享载波基站广播的与所述用户设备针对运营商的归属所对应的参考信号接收功率阈值以及用于计算随机接入无线网络临时标识的参数值；所述用户设备对参考信号接收功率进行测量，将测量得到的参考信号接收功率值与从所述共享载波基站接收到的参考信号接收功率阈值进行比较，根据比较结果来确定在上行链路上还是在补充上行链路上发送随机接入请求；所述用户设备监听来自所述共享基站的随机接入响应，利用接收到的所述参数值计算出的随机接入无线网络临时标识对所述随机接入响应进行解扰；以及所述用户设备根据解扰出的接入信息与所述共享载波基站建立无线资源控制连接。
根据本公开的一个方面，提供了一种用于共享载波基站的用户设备，包括：存储器，其上存储有指令；以及处理器，被配置为执行存储在所述存储器上的指令，以执行上述的方法。
根据本公开的一个方面，提供了一种用于共享载波基站的用户设备，所述共享载波基站的载波由两个以上运营商进行共享，所述共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL，其中，所述用户设备包括：收发模块，被配置为接收由所述共享载波基站广播的与所述用户设备针对运营商的归属所对应的参考信号接收功率阈值以及用于计算随机接入无线网络临时标识的参数值；测量模块，被配置为对参考信号接收功率进行测量；确定模块，将测量得到的参考信号接收功率值与从所述共享载波基站接收到的参考信号接收功率阈值进行比较，根据比较结果来确定在上行链路上还是在补充上行链路上发送随机接入请求；监听解扰模块，被配置为监听来自所述共享基站的随机接入响应，利用接收到的所述参数值计算出的随机接入无线网络临时标识对所述随机接入响应进行解扰；以及控制模块，被配置为根据解扰出的接入信息与所述共享载波基站建立无线资源控制连接。
根据本公开的一个方面，提供了一种计算机可读取的记录介质，所述记录介质存储有计算机可执行指令，所述计算机可执行指令在由计算机执行时使得所述计算机执行根据上述的方法。
根据本公开的实施例，能够在共享载波上下行解耦时实现为不同运营商设置不同的SUL接入策略，针对不同运营商标识独立的随机响应资源，由此，既提高了不同运营商的SUL载波承载的灵活性、差异性，又保证了不同运营商随机响应资源的独立性、唯一性。
附图说明
构成说明书的一部分的附图描述了本公开的实施例，并且连同说明书一起用于解释本公开的原理。
参照附图，根据下面的详细描述，可以更清楚地理解本公开，其中：
图1示出了共享载波基站的一个示意性的示意图。
图2示出了在单一运营商的基站中用户设备接入网络的UL/SUL载波的示意性的覆盖范围。
图3示出了在由两个运营商共享的共享载波基站中用户设备接入网络的UL/SUL载 波的示意性的覆盖范围。
图4示出了根据本公开的一些实施例的在共享载波基站中用户设备接入的方法。
图5示出了根据本公开的实施例的共享载波基站3的示意性的框图。
图6是根据本公开的一些实施例的在共享载波基站中用户设备接入的方法。
图7示出了根据本公开的一些实施例的用于共享载波基站的用户设备的示意性的框图。
具体实施方式
现在将参照附图来详细描述本公开的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本公开的范围。
同时，应当明白，为了便于描述，附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本公开及其应用或使用的任何限制。对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有示例中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它示例可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
图1示出了共享载波基站的一个示意性的示意图。
在图1中，A运营商和B运营商共享无线网络、共享载波，各自独立建设承载网和核心网。A运营商的a用户和B运营商的b用户通过共享网络的共享载波接入无线网络，无线网络区分不同运营商的用户数据后分别回传到各自的核心网，将a用户的数据回传到A运营商的核心网，将b用户的数据回传到B运营商核心网。
在3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)标准的无线接入网共享(RAN Sharing)技术中，两个以上运营商可以共享无线接入网络，共享包括基带、射频和天线等的无线接入网络设备。两个以上运营商可以分别使用同一个基站下的不同载波，也可以共享基站的载波。当两个以上运营商共享相同的载波时，基站可以在广播消息SIB1(System Information Block，系统信息块)中通知多个运营商的移动网 络ID，即PLMN(Public Land Mobile Network，公共陆地移动网络)ID。UE(User Equipment，用户设备)接收基站发送的广播消息SIB1，根据广播消息中的PLMN ID进行网络选择，将所选择的网络的PLMN ID(PLMN标识)上报给基站。
图2示出了在单一运营商的基站中用户设备接入网络的UL/SUL载波的示意性的覆盖范围。
5G标准新空口NR在从1GHz以下直到100GHz的宽频率范围内操作。在高频覆盖将是一问题。减轻这种情况的一个方式是引入补充上行链路(SUL)载波，其主要由改进在相对高频带部署的NR的上行链路覆盖促动(motivate)。SUL载波被部署在低频区域，例如，在LTE频带。以这种方式，NR频带的上行链路覆盖可以是与LTE中的上行链路覆盖可比拟的。SUL载波和NR UL/DL(下行链路)载波在同一个小区中。在这种情况下，SUL载波更像是属于单独的UL配置。UE可维持两个UL配置，但是UE可仅使一个UL配置保持活动(active)。图2图示了NR UL载波和SUL载波之间的覆盖差异。与SUL载波相比，NR UL载波覆盖更小的范围。
在图2的图中，用实线表示运营商的UL载波的覆盖范围，用虚线表示运营商的SUL载波的覆盖范围。由于SUL载波被部署在较低频区域，所以SUL载波的覆盖范围较UL载波的覆盖范围更大。
图3示出了在由两个运营商共享的共享载波基站中用户设备接入网络的例示性的UL/SUL载波的示意性的覆盖范围。
在图3的图中例示了由两个运营商(即运营商A和运营商B)共享基站的例子。在图3中，用实线表示共享载波基站3的UL载波的覆盖范围，用虚线表示运营商A的SUL载波的覆盖范围，用双点划线表示运营商B的SUL载波的覆盖范围。由于运营商A和运营商B的SUL载波都被部署在比共享UL载波的频率更的区域，所以运营商A和运营商B的SUL载波的覆盖范围较UL载波的覆盖范围更大。
在共享载波下，不同运营商SUL采用各自非共享载波，不同运营商SUL载波覆盖不尽相同，原有业务也不同。由于两家运营商的SUL载波不是共享载波，且有时属于不同频段，覆盖不尽相同，往往还有其他原有业务在此频段，所以需要在SUL初始接入的阶段设置不同的接入策略。在随机接入响应阶段，不同运营商用户监听基站发的用RA-RNTI加扰的DCI format 1_0，目前协议中RA-RNTI的计算公式只能区分SUL载波和非SUL载波，无法区分SUL载波中的不同运营商载波。
图4示出了根据本公开的一些实施例的在共享载波基站中用户设备接入的方法。
共享载波基站3的载波由两个以上运营商进行共享，共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL。
在步骤S401中，共享载波基站3向用户设备UE广播与用户设备UE针对运营商的归属(即用户设备UE属于哪个运营商，在一些实施例中为用户设备UE属于运营商A还是属于运营商B)对应起来的参考信号接收功率(即RSRP)阈值以及用于计算随机接入无线网络临时标识(即RA-RNTI)的参数值ul_plmn_id。参考信号接收功率RSRP阈值是用于由用户设备UE判断是进行UL还是SUL接入的阈值。在一些实施例中，在由两个运营商共享基站的情况下，针对运营商A的用户设备UE_A广播用于由用户设备UE_A判定自身进行UL还是SUL接入的RSRP_A以及用于计算随机接入无线网络临时标识RA-RNTI的参数值ul_plmn_id_A；针对运营商B的用户设备UE_B广播用于由用户设备UE_B判定自身进行UL还是SUL接入的RSRP_B以及用于计算随机接入无线网络临时标识RA-RNTI的参数值ul_plmn_id_B
在步骤S403中，共享载波基站3判断是否接收到来自用户设备UE的随机接入请求。在判断结果为否的情况下，返回到步骤S401。在判断结果为是的情况下，进入到步骤S405。
在步骤S405中，共享载波基站3响应于来自用户设备UE的随机接入请求，向用户设备UE广播利用基于参数值ul_plmn_id计算出的随机接入无线网络临时标识RA-RNTI加扰后的随机接入响应。
接着在步骤S407中，判断是否接收到来自用户设备UE的无线资源控制(RRC)连接请求，在判断结果为否的情况下，返回到步骤S401。在判断结果为是的情况下，进入到步骤S409。
在步骤S409中，共享载波基站3响应于来自用户设备UE的RRC连接请求，与用户设备UE建立无线资源控制连接，由此完成用户设备UE的随机接入过程。
在图4中示出了步骤S401和步骤S405的次序，但是并不限于此，步骤S401和步骤S405也可以是独立进行的。例如，步骤S401可以以规定的周期进行，步骤S405可以是以由共享载波基站3接收到用户设备UE的随机接入请求为触发而进行的。
在一些实施例中，共享载波基站3还在步骤S402中广播指令来通知用户设备UE进行参考信号接收功率测量。步骤S402可以是以规定的周期进行的，也可以是在步骤S401之后进行的。
在一些实施例中，用户设备UE针对运营商的归属是通过PLMN标识来识别的，共 享载波基站3将参考信号接收功率RSRP阈值以及参数值ul_plmn_id与对应的PLMN标识一起向用户设备UE广播。例如，将包含RSRP_A以及参数值ul_plmn_id_A与对应的PLMN标识plmn_A的数据包向用户设备UE广播，将包含RSRP_B以及参数值ul_plmn_id_B与对应的PLMN标识plmn_B的数据包向用户设备UE广播。应当理解，用户设备UE针对运营商的归属的确定方式并不限于此，可以使用任意的其他方式来确定用户设备UE的归属。
在一些实施例中，在将用于计算随机接入无线网络临时标识的参数值设为ul_plmn_id时，随机接入无线网络临时标识RA-RNTI通过下式求出：
RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+n×ul_plmn_id，
其中，s_id是物理随机接入信道(PRACH)的第一个正交频分复用(OFDM)符号的索引；t_id是系统帧中物理随机接入信道的第一个时隙的索引；f_id是物理随机接入信道所在频域的索引；ul_carrier_id在用户设备UE选用上行链路时为0，在用户设备UE选用补充上行链路时为1；n为正整数，ul_plmn_id为非负整数且对于不同的运营商对应的ul_plmn_id互相不同，0≤s_id<14，0≤t_id<80，0≤f_id<8。在一些实施例中，对于参数ul_plmn_id可以分配1个比特或2个比特，在1个比特的情况下可以容纳两个运营商，即分别为0和1；在2个比特的情况下可以容纳四个运营商，即分别为00、01、10和11。
图5示出了根据本公开的实施例的共享载波基站3的示意性的框图。
共享载波基站3的载波由两个以上运营商进行共享，共享载波基站3的上行的链路包括上行链路即UL和补充上行链路即SUL。共享载波基站3包括收发装置51和控制装置52。收发装置51对信号进行基带和射频处理，然后通过射频馈线送到天线上进行发射。
共享载波基站3利用收发装置51向用户设备UE广播与用户设备UE针对运营商的归属对应起来的参考信号接收功率(即RSRP)阈值以及用于计算随机接入无线网络临时标识(即RA-RNTI)的参数值ul_plmn_id。
共享载波基站3通过收发装置51接收来自用户设备UE的随机接入请求，并利用收发装置51向用户设备UE广播由控制装置52利用基于参数值ul_plmn_id计算出的随机接入无线网络临时标识RA-RNTI加扰后的随机接入响应。
共享载波基站3响应于来自用户设备UE的无线资源控制(即RRC)连接请求，与 用户设备UE建立无线资源控制连接。
在一些实施例中，共享载波基站3还利用收发装置51通知用户设备UE进行参考信号接收功率测量。
在一些实施例中，用户设备UE针对运营商的归属是通过PLMN标识来识别的，共享载波基站3通过收发装置51将参考信号接收功率RSRP阈值以及参数值ul_plmn_id与对应的PLMN标识一起向用户设备UE广播。例如，将包含RSRP_A以及参数值ul_plmn_id_A与对应的PLMN标识plmn_A的数据包向用户设备UE广播，将包含RSRP_B以及参数值ul_plmn_id_B与对应的PLMN标识plmn_B的数据包向用户设备UE广播。用户设备UE针对运营商的归属的确定方式并不限于此，可以使用任意的其他方式来确定用户设备UE的归属。
在一些实施例中，在将用于计算随机接入无线网络临时标识的参数值设为ul_plmn_id时，随机接入无线网络临时标识RA-RNTI通过下式求出：
RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+n×ul_plmn_id，
其中，s_id是物理随机接入信道(PRACH)的第一个正交频分复用(OFDM)符号的索引；t_id是系统帧中物理随机接入信道的第一个时隙的索引；f_id是物理随机接入信道所在频域的索引；ul_carrier_id在用户设备UE选用上行链路时为0，在用户设备UE选用补充上行链路时为1；n为正整数，ul_plmn_id为非负整数且对于不同的运营商对应的ul_plmn_id互相不同，0≤s_id<14，0≤t_id<80，0≤f_id<8。在一些实施例中，对于参数ul_plmn_id可以分配1个比特或2个比特，在1个比特的情况下可以容纳两个运营商，即分别为0和1；在2个比特的情况下可以容纳四个运营商，即分别为00、01、10和11。
图6是根据本公开的一些实施例的在共享载波基站中用户设备接入的方法。共享载波基站3的载波由两个以上运营商进行共享，共享载波基站3的上行的链路包括上行链路即UL和补充上行链路即SUL。
如图6所示，在步骤S601中，用户设备UE接收由共享载波基站3广播的与本用户设备针对运营商的归属所对应的参考信号接收功率RSRP阈值以及用于计算随机接入无线网络临时标识RA-RNTI的参数值ul_plmn_id。参考信号接收功率RSRP阈值是用于由用户设备UE判断是进行UL还是SUL接入的阈值。在一些实施例中，在用户设备UE为运营商A的用户设备UE_A的情况下，用户设备UE_A仅接收由共享载波基站3广播 的由用户设备UE_A判定自身进行UL还是SUL接入的RSRP_A以及用于计算随机接入无线网络临时标识RA-RNTI的参数值ul_plmn_id_A；在用户设备UE为运营商B的用户设备UE_B的情况下，用户设备UE_B仅接收由共享载波基站3广播的由用户设备UE_B判定自身进行UL还是SUL接入的RSRP_B以及用于计算随机接入无线网络临时标识RA-RNTI的参数值ul_plmn_id_B。
接着，在步骤S603中，用户设备UE对参考信号接收功率进行测量，将测量得到的参考信号接收功率值与从共享载波基站3接收到的参考信号接收功率RSRP阈值进行比较，根据比较结果来确定在上行链路上还是在补充上行链路上发送随机接入请求。
接着，在步骤S605中，用户设备UE监听来自共享基站3的随机接入响应，利用接收到的参数值ul_plmn_id计算出的随机接入无线网络临时标识RA-RNTI对所接收到的随机接入响应进行解扰。
接着，在步骤S607中，用户设备UE根据解扰出的接入信息与共享载波基站3建立无线资源控制连接，由此完成用户设备UE的随机接入过程。
在一些实施例中，用户设备UE响应于来自共享载波基站3的指令，对参考信号接收功率进行测量。在另一些实施例中，用户设备UE响应于接收到从共享载波基站3广播的参考信号接收功率RSRP阈值以及参数值ul_plmn_id，对参考信号接收功率进行测量。
在一些实施例中，用户设备UE针对运营商的归属是通过PLMN标识来识别的，用户设备UE从共享载波基站3接收与自身的PLMN标识对应的参考信号接收功率RSRP阈值以及参数值ul_plmn_id。
在一些实施例中，在测量得到的参考信号接收功率值大于等于从共享载波基站3接收到的参考信号接收功率RSRP阈值的情况下，用户设备在上行链路UL发送随机接入请求；在测量得到的参考信号接收功率值小于从共享载波基站3接收到的参考信号接收功率RSRP阈值的情况下，用户设备UE在补充上行链路SUL发送随机接入请求。
在一些实施例中，在将用于计算随机接入无线网络临时标识的参数值设为ul_plmn_id时，随机接入无线网络临时标识RA-RNTI通过下式求出：
RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+n×ul_plmn_id，
其中，s_id是物理随机接入信道(PRACH)的第一个正交频分复用(OFDM)符号的索引；t_id是系统帧中物理随机接入信道的第一个时隙的索引；f_id是物理随机接入信道所在频域的索引；ul_carrier_id在用户设备UE选用上行链路时为0，在用户设备UE选 用补充上行链路时为1；n为正整数，ul_plmn_id为非负整数且对于不同的运营商对应的ul_plmn_id互相不同，0≤s_id<14，0≤t_id<80，0≤f_id<8。
图7示出了根据本公开的一些实施例的用于共享载波基站的用户设备的示意性的结构框图。共享载波基站3的载波由两个以上运营商进行共享，共享载波基站3的上行的链路包括上行链路即UL和补充上行链路即SUL。
用户设备7包括收发模块71、测量模块72、确定模块73、监听解扰模块74以及控制模块75。
收发模块71接收由共享载波基站3广播的与用户设备7(即UE)针对运营商的归属所对应的参考信号接收功率阈值RSRP以及用于计算随机接入无线网络临时标识RA-RNTI的参数值。测量模块72对参考信号接收功率进行测量。确定模块73将测量得到的参考信号接收功率值与从共享载波基站3接收到的参考信号接收功率RSRP阈值进行比较，根据比较结果来确定在上行链路上还是在补充上行链路上发送随机接入请求。监听解扰模块74，监听来自共享基站3的随机接入响应，利用接收到的参数值ul_plmn_id计算出的随机接入无线网络临时标识RA-RNTI对随机接入响应进行解扰。控制模块75根据解扰出的接入信息与共享载波基站3建立无线资源控制连接。
在一些实施例中，用户设备7的测量模块72响应于收发模块71接收到来自共享载波基站3的指令，对参考信号接收功率进行测量。在另一些实施例中，用户设备7的测量模块72响应于接收到从共享载波基站3广播的参考信号接收功率RSRP阈值以及参数值ul_plmn_id，对参考信号接收功率进行测量。
在一些实施例中，用户设备3针对运营商的归属是通过PLMN标识来识别的，用户设备3从共享载波基站3接收与自身的PLMN标识对应的参考信号接收功率RSRP阈值以及参数值ul_plmn_id。
在一些实施例中，在测量得到的参考信号接收功率值大于等于从共享载波基站3接收到的参考信号接收功率RSRP阈值的情况下，用户设备7在上行链路UL发送随机接入请求；在测量得到的参考信号接收功率值小于从共享载波基站接收到的参考信号接收功率RSRP阈值的情况下，用户设备7在补充上行链路SUL发送随机接入请求。
在一些实施例中，在将用于计算随机接入无线网络临时标识的参数值设为ul_plmn_id时，随机接入无线网络临时标识RA-RNTI通过下式求出：
RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+n×ul_plmn_id，
其中，s_id是物理随机接入信道(PRACH)的第一个正交频分复用(OFDM)符号的索引；t_id是系统帧中物理随机接入信道的第一个时隙的索引；f_id是物理随机接入信道所在频域的索引；ul_carrier_id在用户设备UE选用上行链路时为0，在用户设备UE选用补充上行链路时为1；n为正整数，ul_plmn_id为非负整数且对于不同的运营商对应的ul_plmn_id互相不同，0≤s_id<14，0≤t_id<80，0≤f_id<8。
根据本公开的实施例，可以应用于不同运营商的5G共享载波上下行解耦时，两家运营商分别采用各自的非共享上行载波来作为补充上行载波的情况，以此有效提升上行覆盖范围。
根据本公开的实施例，能够在共享载波上下行解耦时实现为不同运营商设置不同的SUL接入策略，针对不同运营商，标识独立的随机响应资源，由此，既提高了不同运营商的SUL载波承载的灵活性、差异性，又保证了不同运营商随机响应资源的独立性、唯一性。
应当理解，本说明书中“实施例”或类似表达方式的引用是指结合该实施例所述的特定特征、结构、或特性系包括在本公开的至少一具体实施例中。因此，在本说明书中，“在本公开的实施例中”及类似表达方式的用语的出现未必指相同的实施例。
本领域技术人员应当知道，本公开被实施为一系统、装置、方法或作为计算机程序产品的计算机可读媒体(例如非瞬态存储介质)。因此，本公开可以实施为各种形式，例如完全的硬件实施例、完全的软件实施例(包括固件、常驻软件、微程序代码等)，或者也可实施为软件与硬件的实施形式，在以下会被称为“电路”、“模块”或“系统”。此外，本公开也可以任何有形的媒体形式实施为计算机程序产品，其具有计算机可使用程序代码存储于其上。
本公开的相关叙述参照根据本公开具体实施例的系统、装置、方法及计算机程序产品的流程图和/或框图来进行说明。可以理解每一个流程图和/或框图中的每一个块，以及流程图和/或框图中的块的任何组合，可以使用计算机程序指令来实施。这些计算机程序指令可供通用型计算机或特殊计算机的处理器或其它可编程数据处理装置所组成的机器来执行，而指令经由计算机或其它可编程数据处理装置处理以便实施流程图和/或框图中所说明的功能或操作。
在附图中显示根据本公开各种实施例的系统、装置、方法及计算机程序产品可实施的架构、功能及操作的流程图及框图。因此，流程图或框图中的每个块可表示一模块、区段、或部分的程序代码，其包括一个或多个可执行指令，以实施指定的逻辑功能。另 外应当注意，在某些其它的实施例中，块所述的功能可以不按图中所示的顺序进行。举例来说，两个图示相连接的块事实上也可以同时执行，或根据所涉及的功能在某些情况下也可以按图标相反的顺序执行。此外还需注意，每个框图和/或流程图的块，以及框图和/或流程图中块的组合，可藉由基于专用硬件的系统来实施，或者藉由专用硬件与计算机指令的组合，来执行特定的功能或操作。
以上已经描述了本公开的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。本文中所用术语的选择，旨在最好地解释各实施例的原理、实际应用或对市场技术的技术改进，或者使本技术领域的其它普通技术人员能理解本文披露的各实施例。

Claims (23)

  1. 一种在共享载波基站中用户设备接入的方法，所述共享载波基站的载波由两个以上运营商进行共享，所述共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL，所述方法包括：
    所述共享载波基站向所述用户设备广播与所述用户设备针对运营商的归属对应起来的参考信号接收功率阈值以及用于计算随机接入无线网络临时标识的参数值；
    所述共享载波基站响应于来自所述用户设备的随机接入请求，向所述用户设备广播利用基于所述参数值计算出的随机接入无线网络临时标识加扰后的随机接入响应；以及
    所述共享载波基站响应于来自所述用户设备的无线资源控制即RRC连接请求，与所述用户设备建立无线资源控制连接。
  2. 根据权利要求1所述的方法，其中，
    所述共享载波基站通知所述用户设备对参考信号接收功率进行测量。
  3. 根据权利要求1所述的方法，其中，
    所述用户设备针对运营商的归属是通过公共陆地移动网络即PLMN标识来识别的，所述共享载波基站将所述参考信号接收功率阈值以及所述参数值与对应的所述PLMN标识一起向所述用户设备广播。
  4. 根据权利要求1所述的方法，其中，
    在将用于计算随机接入无线网络临时标识的参数值设为ul_plmn_id时，所述随机接入无线网络临时标识RA-RNTI通过下式求出：
    RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+n×ul_plmn_id，
    其中，s_id是物理随机接入信道的第一个正交频分复用符号的索引；t_id是系统帧中物理随机接入信道的第一个时隙的索引；f_id是物理随机接入信道所在频域的索引；ul_carrier_id在所述用户设备选用上行链路时为0，在所述用户设备选用补充上行链路时为1；n为正整数，ul_plmn_id为非负整数且对于不同的运营商对应的ul_plmn_id互相不同，0≤s_id<14，0≤t_id<80，0≤f_id<8。
  5. 一种共享载波基站，包括：
    存储器，其上存储有指令；以及
    处理器，被配置为执行存储在所述存储器上的指令，以执行根据权利要求1至4中的任一项所述的方法。
  6. 一种共享载波基站，所述共享载波基站的载波由两个以上运营商进行共享，所述共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL，所述共享载波基站包括收发装置和控制装置，其中，
    所述共享载波基站被配置为利用所述收发装置向所述用户设备广播与所述用户设备针对运营商的归属对应起来的参考信号接收功率阈值以及用于计算随机接入无线网络临时标识的参数值，
    所述共享载波基站被配置为通过所述收发装置接收来自所述用户设备的随机接入请求，并利用所述收发装置向所述用户设备广播由所述控制装置利用基于所述参数值计算出的随机接入无线网络临时标识加扰后的随机接入响应，
    所述共享载波基站被配置为响应于来自所述用户设备的无线资源控制即RRC连接请求，与所述用户设备建立无线资源控制连接。
  7. 根据权利要求6所述的共享载波基站，其中，
    所述共享载波基站被配置为通过所述收发装置通知所述用户设备对参考信号接收功率进行测量。
  8. 根据权利要求6所述的共享载波基站，其中，
    所述用户设备针对运营商的归属是通过公共陆地移动网络即PLMN标识来识别的，所述共享载波基站通过所述收发装置将所述参考信号接收功率阈值以及所述参数值与对应的所述PLMN标识一起向所述用户设备广播。
  9. 根据权利要求6所述的共享载波基站，其中，
    在将用于计算随机接入无线网络临时标识的参数值设为ul_plmn_id时，所述随机接入无线网络临时标识RA-RNTI通过下式求出：
    RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+n ×ul_plmn_id，
    其中，s_id是物理随机接入信道的第一个正交频分复用符号的索引；t_id是系统帧中物理随机接入信道的第一个时隙的索引；f_id是物理随机接入信道所在频域的索引；ul_carrier_id在所述用户设备选用上行链路时为0，在所述用户设备选用补充上行链路时为1；n为正整数，ul_plmn_id为非负整数且对于不同的运营商对应的ul_plmn_id互相不同，0≤s_id<14，0≤t_id<80，0≤f_id<8。
  10. 一种在共享载波基站中用户设备接入的方法，所述共享载波基站的载波由两个以上运营商进行共享，所述共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL，所述方法包括：
    所述用户设备接收由所述共享载波基站广播的与所述用户设备针对运营商的归属所对应的参考信号接收功率阈值以及用于计算随机接入无线网络临时标识的参数值；
    所述用户设备对参考信号接收功率进行测量，将测量得到的参考信号接收功率值与从所述共享载波基站接收到的参考信号接收功率阈值进行比较，根据比较结果来确定在上行链路上还是在补充上行链路上发送随机接入请求；
    所述用户设备监听来自所述共享基站的随机接入响应，利用接收到的所述参数值计算出的随机接入无线网络临时标识对所述随机接入响应进行解扰；以及
    所述用户设备根据解扰出的接入信息与所述共享载波基站建立无线资源控制连接。
  11. 根据权利要求10所述的方法，其中，
    所述用户设备响应于来自所述共享载波基站的指令，对参考信号接收功率进行测量。
  12. 根据权利要求10所述的方法，其中，
    所述用户设备响应于接收到从所述共享载波基站广播的所述参考信号接收功率阈值以及所述参数值，对参考信号接收功率进行测量。
  13. 根据权利要求10所述的方法，其中，
    所述用户设备针对运营商的归属是通过公共陆地移动网络即PLMN标识来识别的，所述用户设备从所述共享载波基站接收与自身的PLMN标识对应的参考信号接收功率阈 值以及所述参数值。
  14. 根据权利要求10所述的方法，其中，
    在测量得到的参考信号接收功率值大于等于从所述共享载波基站接收到的参考信号接收功率阈值的情况下，所述用户设备在上行链路上发送随机接入请求；在测量得到的参考信号接收功率值小于从所述共享载波基站接收到的参考信号接收功率阈值的情况下，所述用户设备在补充上行链路发送随机接入请求。
  15. 根据权利要求10所述的方法，其中，
    在将用于计算随机接入无线网络临时标识的参数值设为ul_plmn_id时，所述随机接入无线网络临时标识RA-RNTI通过下式求出：
    RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+n×ul_plmn_id，
    其中，s_id是物理随机接入信道的第一个正交频分复用符号的索引；t_id是系统帧中物理随机接入信道的第一个时隙的索引；f_id是物理随机接入信道所在频域的索引；ul_carrier_id在所述用户设备选用上行链路时为0，在所述用户设备选用补充上行链路时为1；n为正整数，ul_plmn_id为非负整数且对于不同的运营商对应的ul_plmn_id互相不同，0≤s_id<14，0≤t_id<80，0≤f_id<8。
  16. 一种用于共享载波基站的用户设备，包括：
    存储器，其上存储有指令；以及
    处理器，被配置为执行存储在所述存储器上的指令，以执行根据权利要求10至15中的任一项所述的方法。
  17. 一种用于共享载波基站的用户设备，所述共享载波基站的载波由两个以上运营商进行共享，所述共享载波基站的上行的链路包括上行链路即UL和补充上行链路即SUL，其中，
    所述用户设备包括：
    收发模块，被配置为接收由所述共享载波基站广播的与所述用户设备针对运营商的归属所对应的参考信号接收功率阈值以及用于计算随机接入无线网络临时标识的参数 值；
    测量模块，被配置为对参考信号接收功率进行测量；
    确定模块，被配置为将测量得到的参考信号接收功率值与从所述共享载波基站接收到的参考信号接收功率阈值进行比较，根据比较结果来确定在上行链路上还是在补充上行链路上发送随机接入请求；
    监听解扰模块，被配置为监听来自所述共享基站的随机接入响应，利用接收到的所述参数值计算出的随机接入无线网络临时标识对所述随机接入响应进行解扰；以及
    控制模块，被配置为根据解扰出的接入信息与所述共享载波基站建立无线资源控制连接。
  18. 根据权利要求17所述的用户设备，其中，
    所述用户设备被配置为响应于来自所述共享载波基站的指令，对参考信号接收功率进行测量。
  19. 根据权利要求17所述的用户设备，其中，
    所述用户设备被配置为响应于接收到从所述共享载波基站广播的所述参考信号接收功率阈值以及所述参数值，对参考信号接收功率进行测量。
  20. 根据权利要求17所述的用户设备，其中，
    所述用户设备针对运营商的归属是通过公共陆地移动网络即PLMN标识来识别的，所述用户设备从所述共享载波基站接收与自身的PLMN标识对应的参考信号接收功率阈值以及所述参数值。
  21. 根据权利要求17所述的用户设备，其中，
    所述用户设备被配置为：
    在测量得到的参考信号接收功率值大于等于从所述共享载波基站接收到的参考信号接收功率阈值的情况下在上行链路上发送随机接入请求，
    在测量得到的参考信号接收功率值小于从所述共享载波基站接收到的参考信号接收功率阈值的情况下在补充上行链路上发送随机接入请求。
  22. 根据权利要求17所述的用户设备，其中，
    在将用于计算随机接入无线网络临时标识的参数值设为ul_plmn_id时，所述随机接入无线网络临时标识RA-RNTI通过下式求出：
    RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+n×ul_plmn_id，
    其中，s_id是物理随机接入信道的第一个正交频分复用符号的索引；t_id是系统帧中物理随机接入信道的第一个时隙的索引；f_id是物理随机接入信道所在频域的索引；ul_carrier_id在所述用户设备选用上行链路时为0，在所述用户设备选用补充上行链路时为1；n为正整数，ul_plmn_id为非负整数且对于不同的运营商对应的ul_plmn_id互相不同，0≤s_id<14，0≤t_id<80，0≤f_id<8。
  23. 一种计算机可读取的记录介质，所述记录介质存储有计算机可执行指令，所述计算机可执行指令在由计算机执行时使得所述计算机执行根据权利要求1—4和10—15中的任一项所述的方法。
PCT/CN2021/090595 2020-09-09 2021-04-28 接入方法、共享载波基站、用户设备及记录介质 WO2022052482A1 (zh)

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