CN117750469A - Method performed by user equipment and user equipment - Google Patents
Method performed by user equipment and user equipment Download PDFInfo
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- CN117750469A CN117750469A CN202211133689.6A CN202211133689A CN117750469A CN 117750469 A CN117750469 A CN 117750469A CN 202211133689 A CN202211133689 A CN 202211133689A CN 117750469 A CN117750469 A CN 117750469A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 101150096310 SIB1 gene Proteins 0.000 claims abstract description 52
- 230000005540 biological transmission Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
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- 230000000694 effects Effects 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 235000013532 brandy Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- GVVPGTZRZFNKDS-JXMROGBWSA-N geranyl diphosphate Chemical compound CC(C)=CCC\C(C)=C\CO[P@](O)(=O)OP(O)(O)=O GVVPGTZRZFNKDS-JXMROGBWSA-N 0.000 description 1
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Classifications
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention provides a method executed by user equipment and the user equipment. The method comprises the following steps: the UE receives an SIB1 message sent from a base station; and judging whether the current cell is forbidden or whether the UE is allowed to perform the cell selection and/or the cell reselection of the same frequency when the current cell is forbidden according to the existence of the first common frequency reselection field and the existence of the second common frequency reselection field in the SIB1 message.
Description
Technical Field
The present invention relates to the field of wireless communication technology, and more specifically, to a method for performing cell access barring detection by a user equipment and a corresponding user equipment.
Background
With the standardization and gradual commercialization of 5G, the application scenario is also increasingly diversified. First, for industrial wireless sensor scenarios, various sensors are of a wide variety and diverse use. Some of these sensors require high reliability, low latency or large bandwidth, some require ultra low cost and ultra long battery life, and some require between the former two. This part of the device may be considered as some reduced capability NR device (RedCap UE). Second, with the planning and development of smart cities, video surveillance and information gathering are becoming popular, and wireless devices for such applications have similar features to the reduced capability NR devices mentioned above. Finally, numerous wearable devices, such as smartwatches, smartbracelets, health monitors, etc., also feature NR devices with reduced capabilities. For this type of reduced capacity NR device, the original standard does not support it well to the best performance requirements.
For the reasons described above, at month 2021, 3, on the third generation partnership project (3rd Generation Partnership Project:3GPP) ran#91e full meeting, a work item for the reduced capability NR device of release 17 (see non-patent document: RP-210918 Revised WID on support of reduced capability NR devices) was approved. The work item has just determined the applicable scenario of the project as an industrial wireless sensor, video monitoring and wearable device. The transmission/reception bandwidth supported by a normal NR UE on FR1 is at least 100MHz, and the transmission/reception bandwidth supported on FR2 is at least 200MHz. And the maximum transmission/reception bandwidth supported by the RedCap UE on FR1 is 20MHz and the maximum transmission/reception bandwidth supported on FR2 is 100MHz. The RedCap UE may support one receiving branch (1 Rx branch) or two receiving branches (2 Rx branches). The RedCap UE may support full duplex FDD or half duplex FDD.
To further reduce the requirements for UE capabilities, research projects for release 18 Further NR RedCap UE complexity reduction (further complexity reduction of NR RedCap UE) were proposed and approved on the RAN #94 full meeting, 12 months 2021. The latest non-patent literature of this study: RP-221161Revised SID for Study on further NR RedCap UE complexity reduction. For release 18 RedCap UEs, the maximum transmit/receive bandwidth supported on FR1 may be further reduced to 5MHz.
The present invention discusses how release 18 RedCap UEs detect whether a cell supports release 18 RedCap UEs, how to detect whether a cell prohibits release 18 RedCap UEs from accessing a cell, how to detect whether co-channel cell selection/reselection is allowed when release 18 RedCap UEs are accessed, and how to detect whether the network allows release 18 RedCap UEs to perform inter-channel cell selection/reselection.
Disclosure of Invention
In order to solve at least part of the above problems, the present invention provides a method executed by a user equipment and the user equipment, which can correctly detect whether a cell allows an enhanced RedCap UE to access the cell, whether a network allows the enhanced RedCap UE to access a different frequency cell, and whether the cell can be selected or reselected to the same frequency cell when the cell is forbidden, so that the enhanced RedCap UE can access the network correctly and timely for data transmission.
According to the present invention, there is provided a method performed by a user equipment UE, comprising: the UE receives an SIB1 message sent from a base station; and judging whether the current cell is forbidden or whether the UE is allowed to perform the cell selection and/or the cell reselection of the same frequency when the current cell is forbidden according to the existence of the first common frequency reselection field and the existence of the second common frequency reselection field in the SIB1 message.
Preferably, if the first common frequency reselection field does not exist, the UE determines that the current cell is barred from access and performs cell barred by regarding the second common frequency reselection field as being set to be allowed.
Preferably, if the first common frequency re-selection field exists and the second common frequency re-selection field does not exist, the UE determines that the current cell is barred from access and performs cell barred by regarding the second common frequency re-selection field as being set as allowed.
Preferably, if the first common frequency reselection field exists and the second common frequency reselection field exists and the first condition is satisfied, the UE determines that the current cell is forbidden to be accessed, and performs cell prohibition according to the value of the second common frequency reselection field or the first common frequency reselection field.
Preferably, if the first common frequency reselection field exists and the second common frequency reselection field exists, and a second condition is satisfied, the UE determines that the current cell is forbidden to be accessed, and performs cell forbidden according to the value of the first common frequency reselection field or the first common frequency reselection field.
Preferably, the determining is performed when the UE is in an rrc_idle state or an rrc_inactive state, or when the UE is in an rrc_connected state and a T311 timer is running.
Furthermore, according to the present invention, there is proposed a method performed by a user equipment, UE, comprising: the UE receives an SIB1 message sent from a base station; and judging whether the current cell is forbidden or whether the UE is allowed to perform cell selection and/or cell reselection of the same frequency when the current cell is forbidden according to the existence of the second same frequency reselection field in the SIB1 message.
In addition, according to the present invention, there is provided a method performed by a user equipment UE, comprising: the UE receives an SIB4 message sent from a base station; and judging and applying the inter-frequency cell reselection related parameters for the current frequency point in the SIB4 message according to the existence of the first inter-frequency reselection field and the existence of the second inter-frequency reselection field in the SIB4 message.
Preferably, the method further comprises: and judging and applying the parameters related to the inter-frequency cell reselection of the current frequency point in the SIB4 message according to the existence or non-existence of the inter-frequency point list in the SIB4 message.
Furthermore, according to the present invention, there is provided a user equipment comprising: a processor; and a memory storing instructions, wherein the instructions, when executed by the processor, perform the method described above.
Effects of the invention
According to the invention, whether one cell allows the enhanced RedCAP UE to access the cell or not, whether the network allows the enhanced RedCAP UE to access the inter-frequency cell or not and whether the cell can be selected or reselected to the same-frequency cell or not can be correctly detected when the cell is forbidden, so that the enhanced RedCAP UE can be correctly and timely accessed to the network for data transmission
Drawings
Fig. 1 is a flowchart illustrating a method performed by a user equipment according to embodiment 1 of the present invention.
Fig. 2 is a flowchart showing a method performed by a user equipment according to embodiment 3 of the present invention.
Fig. 3 is a flowchart showing a method performed by a user equipment according to embodiment 4 of the present invention.
Fig. 4 is a schematic block diagram of a user equipment UE according to the present invention.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description. It should be noted that the present invention should not be limited to the specific embodiments described below. In addition, for the sake of brevity, detailed descriptions of well-known techniques, which are not directly related to the present invention, are omitted to prevent confusion of the understanding of the present invention.
The following describes some terms related to the present invention, the specific meaning of the terms is found in the 3GPP latest standard specification,
RedCap: reduced capability reducing Capacity
UE: user Equipment
NR: new Radio New generation wireless technology
MAC: medium Access Control multimedia access control
MAC CE: MAC control element MAC control element
RRC: radio Resource Control radio resource control
Rrc_connected: RRC connected state
Rrc_inactive: RRC inactive state
Rrc_idle: RRC idle state
RAN: radio Access Network radio access layer
PDCCH: physical downlink control channel physical downlink control channel
PBCH: physical broadcast channel physical broadcast channel
SFN: system Frame Number System frame number
PDU: protocol Data Unit protocol data unit
SSB: SS/PBCH block, synchronization signal/physical broadcast channel block
DCI: downlink control information
C-RNTI: cell radio network temporary identification
P-RNTI: paging RNTI, paging radio network temporary identifier
PDCCH: physical Downlink Control Channel physical downlink control channel
RSRP: reference Signal Received Power reference signal received power
RSRQ: reference Signal Received Quality reference signal reception quality
SpCell: special Cell Special Cell
DC: dual Connectivity double connection
MCG: master Cell Group master cell group
SCG: secondary Cell Group auxiliary cell group
PCell: primary Cell
PSCell: primary SCG Cell SCG primary cell
FR1:450 MHz-6000 MHz (also called sub 6G), the maximum system bandwidth of the frequency band below 6G is 100MHz
FR2:24250 MHz-52600 MHz (5G millimeter wave band), maximum system bandwidth 400MHz
FDD: frequency Division Duplex frequency division duplexing
HD-FDD: half-duplex FDD, half-duplex FDD
FD-FDD: full-duplex FDD, full duplex FDD
MIB: master Information Block Main message Block
SIB: system Information Block System message block
In the present invention, the network, the base station and the RAN are used interchangeably, and the network may be a long term evolution LTE network, a New radio access technology (New RAT, NR) network, an enhanced long term evolution LTE network, or other networks defined in a later evolution version of 3 GPP.
In the present invention, the UE may refer to an enhanced reduced capability device (enhanced RedCap UE), or a device with enhanced RedCap capability, and may also refer to other types of NR devices or LTE devices. The enhanced RedCap UE or the device with enhanced RedCap capability may refer to the RedCap UE of release 18 described in the background art, or to the device with RedCap capability of release 18, or may refer to other types of RedCap UEs, the names of which are used in the present invention by way of example only, and may be replaced by any other names.
In the present invention, "feedback", "submit", "report", "send", "transmission" and "notification" are used interchangeably. "use", "make available, make available", "apply", "enable", "activate", "execute", etc. may be used interchangeably. "cell selection/reselection" refers to cell selection and/or cell reselection.
In the present specification, the terms "and", "or", "and/or" may be used to denote different expressions which are used to describe the same meaning in different application scenarios, and the terms may be used to denote a relationship between the terms.
Hereinafter, a description is given of the related art of the present invention.
For release 17 RedCap UEs, before accessing a cell, it is first necessary to acquire the MIB message (i.e., receive the MIB message), and detect the field (field) value in the MIB message after receiving the MIB message. The MIB message carries a cellBarred field, and if the field is set to barred, the RedCap UE considers that the cell is barred from accessing, i.e. the cell prohibits the RedCap UE from accessing the cell. If the cellBarred field is set to non-tbarred (not barred), the RedCap UE considers that the cell is not barred (or allowed) from accessing, i.e., the cell does not barre (or allow) the RedCap UE from accessing the cell.
The RedCap UE acquires the SIB1 message (i.e., receives the SIB1 message) and detects a field value in the SIB1 message after receiving the SIB1 message. The SIB1 message may have an intra freqreselection radio re-ap (re-ap UE on-channel reselection) field, which indicates whether the re-ap UE is allowed to perform on-channel cell selection/reselection when the current cell is barred. If the intra FreqReselection RedCAP field is not present (not present or absent), it means that the cell does not support RedCAP, the RedCAP UE considers the cell to be barred from access, and performs cell barring with intra FreqReselection RedCAP as being set to allowed (allowed). If the intra FreqReselection RedCAP field exists (present), it indicates that the cell supports RedCAP, and the RedCAP UE further detects a cell prohibit related field possibly carried in the SIB1 message.
The RedCap UE considers the cell to be barred from access if at least one of the following conditions is satisfied, and performs cell barring according to a value of the interfreqresulectionredcap:
-if a cellbarredredcaplaplrx (cell forbidden 1Rx RedCap indication) field is present in the acquired SIB1 message and cellBarredRedCap1Rx field is set to forbidden (barred) and the UE has a 1Rx branch;
-if a cellBarredRedCap2Rx (cell forbidden 2Rx RedCap indication) field is present in the acquired SIB1 message and the cellBarredRedCap2Rx field is set to forbidden (barred) and the UE has a 2Rx branch;
-if there is no halfdupex RedCap allowed field in the acquired SIB1 message and the UE only supports half duplex FDD.
If the intra freqresulectionredcap field is set to allow (allowed), which means that after a cell is barred, cell selection or cell reselection on the same frequency as the cell is allowed, when the RedCap UE determines that a cell is barred from being accessed, the RedCap UE may select or reselect to another cell having the same frequency as the barred cell if the condition of cell selection or cell reselection is satisfied. If the intra freqresulectionredcap field is set to notAllowed, which indicates that after a cell is barred, cell selection or cell reselection on the same frequency as the cell is not allowed, when the RedCap UE determines that a cell is barred from access, the RedCap UE cannot select or reselect to other cells having the same frequency as the barred cell.
The SIB4 contains inter-frequency cell reselection information, where an inter-freqcarrier freqlist field is used to configure frequency points of adjacent carriers and cell reselection information of each frequency point. For each frequency point contained in the inter freqcarrier freqlist, the UE determines how to apply the relevant configuration parameters for inter-frequency cell reselection. For the RedCap UE, if the inter freqcarrier freqlist of release 17 does not exist, or the inter freqcarrier freqlist of release 17 exists and the RedCap access allowed therein exists, the inter-frequency cell reselection related parameters for this frequency point in SIB4 are further determined and applied. The application of the inter-frequency cell reselection related parameters for this frequency point in SIB4 includes, but is not limited to: an (apply) p-Max parameter (representing the maximum power of the NR neighbor cell on the carrier frequency point) is applied, and an (apply) additionalamax parameter (additional Pmax for power compensation) is applied.
The invention can correctly detect whether one cell allows the enhanced RedCAP UE to access the cell, whether the network allows the enhanced RedCAP UE to access the inter-frequency cell, and correctly detect whether the same-frequency cell can be selected or reselected when the cell is forbidden, thereby enabling the enhanced RedCAP UE to be correctly and timely accessed to the network for data transmission. Meanwhile, through the invention, the network can flexibly control the access of the common UE, the RedCAP UE and the enhanced RedCAP UE.
Several embodiments of the present invention for the above-described problems are described in detail below.
Example 1
Fig. 1 is a flowchart illustrating a method performed by a user equipment according to embodiment 1 of the present invention.
As shown in fig. 1, this embodiment 1 includes steps 101 and 103.
Optionally, in step 101, the enhanced RedCap UE receives (or acquires) the SIB1 message sent by the base station. Alternatively, before step 101, the enhanced RedCap UE may first receive the MIB message and consider the cell to prohibit the enhanced RedCap UE from accessing when the cellBarred field in the MIB message is set to barred (barred).
The SIB1 message may include an intra freqreselection read field, which has the meaning as described in the related art, and is referred to as a first co-frequency reselection field in the present invention. The SIB1 message may include a cellbarredreddcap 1Rx field (referred to herein as a first 1Rx cell forbidden field), a cellbarredreddcap 2Rx field (referred to herein as a first 2Rx cell forbidden field), and a halfplexredcap allowed field (referred to herein as a first half duplex allowed field).
Optionally, a second on-channel reselection field (e.g., intra freqreselection enhanced RedCap) may be included in the SIB1 message, which indicates whether the enhanced RedCap UE is allowed to perform on-channel cell selection and/or cell reselection when the current cell is barred.
Optionally, a second 1Rx cell barring field (e.g., celBarredenhanced RedCAP1 Rx) may be included in the SIB1 message, indicating whether the cell is barred from access for the enhanced RedCAP UE with a 1Rx leg.
Optionally, a second 2Rx cell barring field (e.g., celBarredenhanced RedCAP2 Rx) may be included in the SIB1 message, indicating whether the cell is barred from access for enhanced RedCAP UEs with 2Rx branches (brandies).
Optionally, a second half duplex grant field (e.g., halfplexen enhanced RedCap allowed) may be included in the SIB1 message, indicating whether the cell supports enhanced RedCap UEs for half duplex FDD.
Optionally, an enhanced cell barring field may be included in the SIB1 message, indicating whether the cell is barred for the enhanced RedCap UE.
Optionally, in step 103, the enhanced RedCap UE makes a judgment on the fields contained in SIB 1.
Optionally, the enhanced RedCap UE performs step 103 while in the rrc_idle state or the rrc_inactive state, or in the rrc_connected state and the T311 timer is running.
Alternatively, if the first common frequency reselection field does not exist (not present or absnt), the enhanced RedCap UE considers that the cell does not support enhanced RedCap (or does not support enhanced RedCap UE), i.e., the enhanced RedCap UE considers that the cell is barred from access, and performs cell barred as being set to allowed (allowed), i.e., considers that common frequency cell selection and/or cell reselection is allowed when cell barred.
Optionally, if the first common frequency repeated field exists (present), the enhanced RedCap UE performs at least one of the following:
-if the second co-channel reselection field does not exist, the enhanced RedCap UE considers that the cell does not support enhanced RedCap (or does not support enhanced RedCap UE), i.e. said enhanced RedCap UE considers that the cell is barred from access;
-if the second common frequency re-selection field does not exist, the enhanced RedCap UE treating the second common frequency re-selection field as being set to allowed (allowed) to perform cell barring, i.e. to consider that common frequency cell selection and/or cell re-selection is allowed while cell barring;
-if a second common frequency re-selection field exists, the enhanced RedCap UE deems the cell barred from access if at least one of the following first conditions is met, and performs cell barred from the value of the second common frequency re-selection field (or the first common frequency re-selection field):
if there is no first 1Rx cell barring field in the acquired SIB1 message or there is a first 1Rx cell barring field in the SIB1 message and the first 1Rx cell barring field is set to notband, if there is a second 1Rx cell barring field in the acquired SIB1 message and the second 1Rx cell barring field is set to barred (barred), and the enhanced RedCap UE is 1Rx branched;
if there is no first 1Rx cell barring field in the acquired SIB1 message or there is a first 1Rx cell barring field in the SIB1 message and the first 1Rx cell barring field is set to notband, if there is an enhanced cell barring field in the acquired SIB1 message and the enhanced cell barring field is set to barred (barred);
-if there is no first 2Rx cell barring field in the acquired SIB1 message or there is a first 2Rx cell barring field in the SIB1 message and the first 2Rx cell barring field is set to notband, if there is a second 2Rx cell barring field in the acquired SIB1 message and the second 2Rx cell barring field is set to barred (barred), and the enhanced RedCap UE is 2Rx branched (brandche);
if there is no first 2Rx cell barring field in the acquired SIB1 message or there is a first 2Rx cell barring field in the SIB1 message and the first 2Rx cell barring field is set to notband, if there is an enhanced cell barring field in the acquired SIB1 message and the enhanced cell barring field is set to barred (barred);
if there is a first half duplex grant field in the acquired SIB1 message and there is no second half duplex grant field in the acquired SIB1 message and the enhanced RedCap UE supports only half duplex FDD.
-if at least one of the first conditions is fulfilled, the enhanced RedCap UE deems the cell barred from access and performs cell barred according to the value of the first common frequency reselection field.
-if a second on-channel reselection field is present, if at least one of the second conditions is met, the enhanced RedCap UE considers the cell to be barred from access and performs cell barred according to the value of the second on-channel reselection field. Wherein the second condition is described in detail in example 3;
-if at least one of the second conditions is fulfilled, the enhanced RedCap UE deems the cell barred from access and performs cell barred according to the value of the first common frequency reselection field. Wherein the second condition is described in detail in example 3.
Wherein, the T311 timer is started after the UE initiates the RRC reestablishment request message, and stops when selecting to another cell, if the timer times out, the UE enters the rrc_idle state.
Example 2
Based on embodiment 1, optionally, if a first co-frequency repeated field exists in the SIB1 message, a second co-frequency repeated field is optionally present. Optionally, if the first co-frequency reselection field in the SIB1 message is not present, the second co-frequency reselection field is not present.
Optionally, if the first 1Rx cell barring field in the SIB1 message is not present, the second 1Rx cell barring field is optionally present. Alternatively, if the first 1Rx cell barring field in the SIB1 message is present and set to barred (barred), the second 1Rx cell barring field is not present.
Alternatively, if the first 2Rx cell barring field in the SIB1 message is not present, the second 2Rx cell barring field is optionally present. Alternatively, if the first 2Rx cell barring field in the SIB1 message is present and set to barred (barred), the second 2Rx cell barring field is not present.
Optionally, if a first half duplex allowed field in the SIB1 message exists, a second half duplex allowed field is optionally present. Optionally, if the first half duplex allowed field in the SIB1 message is not present, the second half duplex allowed field is not present.
Optionally, if the first 1Rx cell barring field in the SIB1 message and/or the first 2Rx cell barring field is not present, an enhanced cell barring field is optionally present. Alternatively, if the first 1Rx cell barring field in the SIB1 message is present and set to barred (barred), and/or the first 2Rx cell barring field is present and set to barred (barred), then the enhanced cell barring field is not present.
Example 3
Fig. 2 is a flowchart showing a method performed by a user equipment according to embodiment 3 of the present invention.
As shown in fig. 2, this embodiment 3 includes steps 301 and 303.
Alternatively, step 301 is the same as step 101 in embodiment 1. Optionally, the first 1Rx cell barring field, and/or the first 2Rx cell barring field, and/or the first half duplex allowing field, and/or the first common frequency reselection field may be ignored by the enhanced RedCap UE. Optionally, the second 1Rx cell barring field, and/or the second 2Rx cell barring field, and/or the second half duplex enable field, and/or the second common frequency reselection field, and/or the enhanced cell barring field may be ignored by the RedCap UE.
Optionally, in step 303, the enhanced RedCap UE makes a determination of the fields contained in SIB 1.
Optionally, step 303 is performed when the enhanced RedCap UE is in rrc_idle state or rrc_inactive state, or when the enhanced RedCap UE is in rrc_connected state and the T311 timer is running.
Alternatively, if the second on-channel reselection field does not exist (not present or absnt), the enhanced RedCap UE considers that the cell does not support enhanced RedCap (or does not support enhanced RedCap UE), i.e., the enhanced RedCap UE considers that the cell is barred from access, and performs cell barred as being set to allowed (allowed), i.e., considers that on-channel cell selection and/or cell reselection is allowed when cell barred.
Optionally, the enhanced RedCap UE performs at least one of the following:
-if the second co-channel reselection field does not exist, the enhanced RedCap UE considers that the cell does not support enhanced RedCap (or does not support enhanced RedCap UE), i.e. said enhanced RedCap UE considers that the cell is barred from access;
-if the second common frequency re-selection field does not exist, the enhanced RedCap UE treating the second common frequency re-selection field as being set to allowed (allowed) to perform cell barring, i.e. to consider that common frequency cell selection and/or cell re-selection is allowed while cell barring;
-if a second on-channel reselection field exists, the enhanced RedCap UE deems the cell barred from access if at least one of the following second conditions is met, and performs cell barred according to the value of the second on-channel reselection field:
if a second 1Rx cell barring field is present in the acquired SIB message and the second 1Rx cell barring field is set to barred (barred), and the enhanced RedCap UE is 1Rx branched;
if a second 2Rx cell barring field is present in the acquired SIB message and the second 2Rx cell barring field is set to barred and the enhanced RedCap UE is 2Rx branched (brandche);
if an enhanced cell barring field is present in the acquired SIB message and the enhanced cell barring field is set to barred (barred);
if the second half duplex grant field is not present in the acquired SIB1 message and the enhanced RedCap UE only supports half duplex FDD.
-if a second on-channel reselection field is present, said enhanced RedCap UE deems the cell barred from access if at least one of the first conditions is met, and performs cell barred according to the value of the second on-channel reselection field, wherein the first condition is described in detail in embodiment 1;
example 4
Fig. 3 is a flowchart showing a method performed by a user equipment according to embodiment 4 of the present invention.
As shown in fig. 3, this embodiment 4 includes steps 401 and 403.
Optionally, in step 401, the enhanced RedCap UE receives (or acquires) the SIB4 message sent by the base station.
The SIB4 message may include an inter freqcarrier freqlist, and the inter freqcarrier freqlist may include a RedCap access allowed field, which is used to indicate whether the RedCap UE is allowed to access an inter-frequency (frequency or cell), which is referred to as a first inter-frequency reselection field in the present invention.
Optionally, a second inter-frequency reselection field (e.g., enhanced RedCap access allowed) field may be included in the SIB4 message to indicate whether the network allows the enhanced RedCap UE to access an inter-frequency (frequency or cell), or to indicate whether the network allows the enhanced RedCap UE to perform inter-frequency cell selection and/or cell reselection. Alternatively, the second inter-frequency reselection field may be contained in version 18 of the inter freqcarrier freqlist in the SIB4 message.
Optionally, in step 403, for each frequency point contained in the inter freqcarrier freqlist, the enhanced RedCap UE further determines and applies the inter-frequency cell reselection related parameters for this frequency point in SIB4 if at least one of the following conditions is met:
-a second inter-frequency alternative field exists;
-a second inter-frequency alternative field exists and is set to enable (TRUE or allowed);
-if version 18 of inter freqcarrier freqlist does not exist;
-if version 18 of inter freqcarrier freqlist exists and a second inter-frequency re-selection field therein exists;
-if version 18 of inter freqcarrier freqlist exists, the second inter-frequency re-selection field therein exists and is set to allow (TRUE or allowed).
-if version 17 of the inter freqcarrier freqlist exists and the first inter-frequency re-selection field therein exists, and version 18 of the inter freqcarrier freqlist does not exist;
-if version 17 of the inter freqcarrier freqlist exists and a first inter-frequency re-selection field therein exists, and version 18 of the inter freqcarrier freqlist exists and a second inter-frequency re-selection field therein exists;
-if the inter freqcarrier freqlist of version 17 exists and a first inter-frequency re-selection field therein exists, the inter freqcarrier freqlist of version 18 exists and a second inter-frequency re-selection field therein exists and is set to enable (TRUE or allow).
The application of the inter-frequency cell reselection related parameters for this frequency point in SIB4 includes, but is not limited to: an (apply) p-Max parameter (representing the maximum power of the NR neighbor cell on the carrier frequency point) is applied, and an (apply) additionalamax parameter (additional Pmax for power compensation) is applied.
Alternatively, the determination of the above condition is performed when the enhanced RedCap UE is in the rrc_idle state or the rrc_inactive state, or when the enhanced RedCap UE is in the rrc_connected state and the T311 timer is running.
Fig. 4 is a schematic block diagram of a user equipment UE according to the present invention. As shown in fig. 4, the user equipment UE500 comprises a processor 501 and a memory 502. The processor 501 may include, for example, a microprocessor, microcontroller, embedded processor, or the like. The memory 502 may include, for example, volatile memory (such as random access memory RAM), a Hard Disk Drive (HDD), non-volatile memory (such as flash memory), or other memory. The memory 502 has stored thereon program instructions. Which, when executed by the processor 501, may perform the above-described method performed by the user equipment as described in detail herein.
The program running on the apparatus according to the present invention may be a program for causing a computer to realize the functions of the embodiments of the present invention by controlling a Central Processing Unit (CPU). The program or information processed by the program may be temporarily stored in a volatile store such as a random access memory RAM, a Hard Disk Drive (HDD), a nonvolatile store such as a flash memory, or other memory system.
A program for realizing the functions of the embodiments of the present invention may be recorded on a computer-readable recording medium. The corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs. The term "computer system" as used herein may be a computer system embedded in the device and may include an operating system or hardware (e.g., peripheral devices). The "computer-readable recording medium" may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium in which a program is stored dynamically at a short time, or any other recording medium readable by a computer.
The various features or functional modules of the apparatus used in the embodiments described above may be implemented or performed by circuitry (e.g., single-chip or multi-chip integrated circuits). Circuits designed to perform the functions described herein may include a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The circuit may be a digital circuit or an analog circuit. Where new integrated circuit technologies are presented as an alternative to existing integrated circuits due to advances in semiconductor technology, one or more embodiments of the present invention may also be implemented using these new integrated circuit technologies.
Furthermore, the present invention is not limited to the above-described embodiments. Although various examples of the embodiments have been described, the present invention is not limited thereto. Fixed or non-mobile electronic devices installed indoors or outdoors may be used as terminal devices or communication devices such as AV devices, kitchen devices, cleaning devices, air conditioners, office devices, vending machines, and other home appliances, etc.
As above, the embodiments of the present invention have been described in detail with reference to the accompanying drawings. However, the specific structure is not limited to the above-described embodiment, and the present invention also includes any design modification without departing from the gist of the present invention. In addition, various modifications can be made to the present invention within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in the different embodiments are also included in the technical scope of the present invention. Further, the components having the same effects described in the above embodiments may be replaced with each other.
Claims (10)
1. A method performed by a user equipment, UE, comprising:
the UE receives an SIB1 message sent from a base station; and
and judging whether the current cell is forbidden or whether the UE is allowed to perform the cell selection and/or the cell reselection of the same frequency when the current cell is forbidden according to the existence of the first common frequency reselection field and the existence of the second common frequency reselection field in the SIB1 message.
2. The method of claim 1, wherein,
if the first common frequency reselection field does not exist, the UE judges that the current cell is forbidden to be accessed, and performs cell forbidden by regarding the second common frequency reselection field as being set to be allowed.
3. The method of claim 1, wherein,
if the first common frequency repeated field exists and the second common frequency repeated field does not exist, the UE judges that the current cell is forbidden to be accessed, and performs cell forbidden by regarding the second common frequency repeated field as being set as being allowed.
4. The method of claim 1, wherein,
and if the first common frequency reselection field exists and the second common frequency reselection field exists and the first condition is met, the UE judges that the current cell is forbidden to be accessed, and performs cell forbidden according to the value of the second common frequency reselection field or the value of the first common frequency reselection field.
5. The method of claim 1, wherein,
and if the first common frequency reselection field exists and the second common frequency reselection field exists and a second condition is met, the UE judges that the current cell is forbidden to be accessed, and performs cell forbidden according to the value of the first common frequency reselection field or the value of the first common frequency reselection field.
6. The method of claim 1, wherein,
the determination is performed when the UE is in an rrc_idle state or an rrc_inactive state, or when the UE is in an rrc_connected state and a T311 timer is running.
7. A method performed by a user equipment, UE, comprising:
the UE receives an SIB1 message sent from a base station; and
and judging whether the current cell is forbidden or whether the UE is allowed to perform cell selection and/or cell reselection of the same frequency when the current cell is forbidden according to the existence or non-existence of a second same frequency reselection field in the SIB1 message.
8. A method performed by a user equipment, UE, comprising:
the UE receives an SIB4 message sent from a base station; and
judging and applying the inter-frequency cell reselection related parameters of the current frequency point in the SIB4 message according to the existence of the first inter-frequency reselection field and the existence of the second inter-frequency reselection field in the SIB4 message.
9. The method of claim 8, further comprising:
and judging and applying the parameters related to the inter-frequency cell reselection of the current frequency point in the SIB4 message according to the existence or non-existence of the inter-frequency point list in the SIB4 message.
10. A user equipment, comprising:
a processor; and
a memory in which instructions are stored,
wherein the instructions, when executed by the processor, perform the method according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211133689.6A CN117750469A (en) | 2022-09-15 | 2022-09-15 | Method performed by user equipment and user equipment |
| PCT/CN2023/118801 WO2024056025A1 (en) | 2022-09-15 | 2023-09-14 | Method executed by user equipment, and user equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211133689.6A CN117750469A (en) | 2022-09-15 | 2022-09-15 | Method performed by user equipment and user equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117750469A true CN117750469A (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211133689.6A Pending CN117750469A (en) | 2022-09-15 | 2022-09-15 | Method performed by user equipment and user equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117750469A (en) |
| WO (1) | WO2024056025A1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3833060A4 (en) * | 2018-08-10 | 2022-03-30 | Beijing Xiaomi Mobile Software Co., Ltd. | System information transmission method, apparatus and system, and computer-readable storage medium |
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2022
- 2022-09-15 CN CN202211133689.6A patent/CN117750469A/en active Pending
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- 2023-09-14 WO PCT/CN2023/118801 patent/WO2024056025A1/en unknown
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| WO2024056025A1 (en) | 2024-03-21 |
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