Low-power-consumption receiving method and user equipment

Abstract

The invention provides a low-power-consumption receiving method executed by user equipment and the user equipment. The low-power-consumption receiving method comprises the following steps: receiving low-power-consumption receiving configuration information including a service cell quality threshold from a network; and when the service cell quality of a service cell corresponding to the user equipment is not lower than the service cell quality threshold and there is no ongoing process of using a main receiver of the user equipment, deactivating the main receiver, and enabling a low-power wake-up receiver to listen to a low-power wake-up signal for waking up the primary receiver.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and more specifically, to a low-power consumption receiving method performed by a user equipment and a corresponding user equipment. Background Art

[0002] Energy saving of user equipment is beneficial to extend the battery life of user equipment, extend the battery life, and reduce the charging frequency. Although the existing energy-saving technology can meet the above energy-saving requirements to a certain extent, it generally has the defect of large service delay of user equipment. Based on the above reasons, the 3rd Generation Partnership Project (3GPP) approved the NR LP-WUS / WUR research project for version 18 at the RAN plenary meeting. For its updated content, please refer to the non-patent document: RP-222644 Revised SID: Study on low-power Wake-up Signal and Receiver for NR. The main goal of this research project is to introduce a low-power receiver (which can be called LR or LP-WUR) to detect the low-power wake-up signal (LP-WUS) sent by the base station. When there is no data transmission, the main receiver (MR) of the user equipment remains in a dormant state to reduce the power consumption of the user equipment. When there is data to be transmitted, the user equipment wakes up the MR according to the instruction of LP-WUS and performs corresponding data processing. Thereby achieving the purpose of energy saving of user equipment and reducing service delay. Summary of the invention

[0003] The object of the present invention is to provide a low-power receiving method and user equipment capable of avoiding frequent switching between a main receiver and a low-power wake-up receiver.

[0004] According to one aspect of the present invention, there is provided a low-power reception method performed by a user equipment, comprising: receiving low-power reception configuration information including a service cell quality threshold from a network; and when the service cell quality of a service cell corresponding to the user equipment is not lower than the service cell quality threshold and there is no ongoing process using a main receiver of the user equipment, deactivating the main receiver and enabling a low-power wake-up receiver to listen for a low-power wake-up signal for waking up the main receiver.

[0005] According to the present invention, frequent switching between a main receiver and a low power consumption wake-up receiver can be avoided while reducing the power consumption of a user equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a flowchart of a low power consumption receiving method according to one embodiment of the present invention.

[0007] Figure 2 It is a flowchart of a low power consumption receiving method executed by a user equipment in an RRC idle state or an RRC inactive state according to another embodiment of the present invention.

[0008] Figure 3 It is a flowchart of a low power consumption receiving method executed by a user equipment in an RRC connected state according to another embodiment of the present invention.

[0009] Figure 4 It is a flowchart of a low power consumption receiving method according to another embodiment of the present invention.

[0010] Figure 5 The figure is a simplified structural block diagram of a user equipment UE involved in the present invention. DETAILED DESCRIPTION

[0011] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the present invention should not be limited to the specific embodiments described below. In addition, for the sake of simplicity, detailed descriptions of known technologies that are not directly related to the present invention are omitted to prevent confusion in understanding the present invention.

[0012] The following describes some of the terms involved in the present invention. The specific meanings of the terms can be found in the latest 3GPP standard specifications.

[0013] UE:User Equipment

[0014] NR: New Radio, a new generation of wireless technology

[0015] MAC: Medium Access Control

[0016] MAC CE: MAC control element

[0017] RRC: Radio Resource Control

[0018] RRC CONNECTED: RRC connected state

[0019] RRC INACTIVE: RRC inactive state

[0020] RRC IDLE: RRC idle state

[0021] RAN: Radio Access Network, wireless access layer

[0022] PDCCH: Physical downlink control channel, physical downlink control channel

[0023] PUCCH: Physical Uplink Control Channel, physical uplink control channel

[0024] PUSCH: Physical Uplink Shared Channel, physical uplink shared channel

[0025] PBCH: Physical broadcast channel

[0026] SFN:System Frame Number

[0027] PDU: Protocol Data Unit

[0028] SSB: SS / PBCH block, synchronization signal / physical broadcast channel block

[0029] DCI: Downlink Control Information

[0030] C-RNTI: Cell Radio Network Temporary Identifier

[0031] RSRP: Reference Signal Received Power

[0032] RSRQ: Reference Signal Received Quality

[0033] SpCell: Special Cell, including PCell and PSCell

[0034] DC: Dual Connectivity

[0035] MCG: Master Cell Group

[0036] SCG: Secondary Cell Group

[0037] PCell: Primary Cell

[0038] PSCell: Primary SCG Cell

[0039] MIB: Master Information Block, main message block

[0040] DRX: Discontinuous Reception

[0041] DTX: Discontinuous Transmission

[0042] SIB: System Information Block, system message block

[0043] NES: network energy saving

[0044] gNB: the next Generation Node B

[0045] RLF: Radio Link Failure, radio link failure

[0046] SN: Sequence Number

[0047] CN: Core Network

[0048] SR: Scheduling Request

[0049] UL-SCH: Uplink Shared Channel, uplink shared channel

[0050] BWP: Bandwidth Part, bandwidth part

[0051] CSI: Channel State Information

[0052] SRS: Sounding Reference Signal, channel detection reference signal

[0053] HARQ: Hybrid Automatic Repeat Request

[0054] TAG: Timing Advance Group, timing advance group

[0055] PTAG: Primary Timing Advance Group

[0056] STAG: Secondary Timing Advance Group

[0057] MR: main receiver, main receiver

[0058] LP: low power, low power consumption

[0059] WUS: wake up signal

[0060] WUR: wake up receiver

[0061] LR: lowor power receiver, low power receiver

[0062] MBS: Multicast / Broadcast Service

[0063] In the present invention, network (network or NW), base station (base station or gNB or eNB) and RAN can be used interchangeably. The network can be a long-term evolution LTE network, a new radio access technology (New RAT, NR) network, an enhanced long-term evolution eLTE network, or other networks defined in subsequent evolution versions of 3GPP.

[0064] In the present invention, the user equipment UE may refer to a device supporting user energy saving, may refer to a device supporting LP-WUS / WUR, or may refer to other types of NR devices or LTE devices.

[0065] In the present invention, "feedback", "submit", "report", "send", "transmit or transport", "inform", "indicate", "provide" can be used interchangeably. "Use", "make available", "apply", "implement", "enable", "activate", "perform", "do" and the like can be used interchangeably.

[0066] In the present invention, "associate", "correspond" and "map" can be used interchangeably.

[0067] In the present invention, receive, detect and monitor can be used interchangeably.

[0068] In the present invention, "non-active or deactive", "sleep", "ultradeep sleep", "deactivate", and "stop" can be used interchangeably.

[0069] In the present invention, "activate", "start" and "enable" can be used interchangeably.

[0070] In the present invention, "time" can be time, duration, period, etc.

[0071] In the present invention, the "physical layer" may also be referred to as "layer one (L1)" or "lower layer" and may be used interchangeably.

[0072] In the present invention, "LP-WUR", "LR", and "WUR" can be used interchangeably.

[0073] It should be noted that, in this specification, two things connected by "and", "or", or "and / or" may represent different ways of expressing the same meaning in different application scenarios. There may be a relationship of inclusion and being included between the two, and they do not necessarily refer to completely different contents.

[0074] Hereinafter, a description is given of related art of the present invention.

[0075] In the NR network, when there is no data transmission, the user equipment (UE) can also maintain a data connection with the network to achieve online network services at any time. For example, a user equipment in an idle or inactive state regularly detects whether the network has sent paging information to itself, which requires the user equipment to regularly detect relevant paging information, even if the paging information does not indicate data transmission with the user equipment or the sent paging message is irrelevant to the user equipment. Such behavior will consume more user equipment power, thereby affecting the battery life and reducing the user experience.

[0076] The user equipment can use a low power (LP) auxiliary receiver to detect the low power wake-up signal (LP-WUS) sent by the base station. The low power auxiliary receiver can also be called a low power receiver (LR), or a low power wake-up receiver (LP-WUR), or a receiver for receiving LP-WUS. When there is no data transmission, the main receiver (MR) of the user equipment remains in a dormant state to reduce the power consumption of the user equipment; when there is data to be transmitted, the user equipment wakes up the MR according to the instruction of the LP-WUS and performs corresponding data processing. The LP-WUS signal indicates the relevant information required to wake up the user equipment, such as the indication information containing the user equipment identification (ID), the group information of the user equipment, etc. The user equipment can determine whether the user equipment is awakened by the LP-WUS according to the indication. Only when the LP-WUR of the user equipment detects the wake-up indication information for the user equipment, the user equipment wakes up the MR for related data transmission, such as detecting the paging PDCCH on the associated paging opportunity, or transmitting the PRACH preamble in the corresponding window. In this way, the user equipment can maintain the connection with the network with minimal power consumption and reduce the network response delay. However, the coverage of LP-WUS may be small, and the user equipment may only be able to monitor LP-WUS when it is close to the base station. This method has several problems that need to be solved, such as when the user equipment starts to use LP-WUR (i.e., starts to monitor LP-WUS), when to stop using LP-WUR, when the MR enters the sleep state, when the MR cannot enter the sleep state, etc.

[0077] As for when to enable LP-WUS / WUR, one possible method is based on the quality of the serving cell. If the current serving cell is a cell of good quality, for example, the cell quality of the current serving cell measured based on MR and / or LR is higher than (or equal to) a certain threshold value, the UE can enable LP-WUS / WUR and can also stop MR, or MR goes to sleep. If the quality of the current serving cell deteriorates, for example, the cell quality of the current serving cell measured based on MR and / or LR is lower than a certain threshold value, the UE can wake up MR and deactivate LP-WUS / WUR at the same time. Enable LP-WUS / WUR and deactivate MR; deactivate LP-WUS / WUR and enable MR.

[0078] This process can be regarded as the conversion between LP-WUS / WUR and MR. If the conversion is determined based on the threshold value alone, the jitter of the reference signal may cause the service cell to be judged as a cell of good quality, and the MR is switched to the LP-WUS / WUR. However, the cell quality is immediately found to be deteriorated and the service cell is judged to be a cell of poor quality, so the LP-WUS / WUR is switched to the MR, resulting in the problem of frequent conversion.

[0079] The present invention discusses the problem of when the UE activates / deactivates LP-WUS / WUR after the introduction of LP-WUS / WUR, and how to avoid frequent switching between LP-WUS / WUR and MR. Through the present invention, LP-WUS / WUR can be activated / stopped in a timely and correct manner, avoiding frequent switching between LP-WUR and MR.

[0080] In the following description, the expression "LP-WUS / WUR" means "LP-WUS and / or LP-WUR". In the following description, "enabling LP-WUS / WUR" means starting to use LP-WUR and / or starting to monitor LP-WUS, and "disabling LP-WUS / WUR" means stopping using LP-WUR and / or stopping monitoring LP-WUS.

[0081] Below, first refer to Figures 1 to 4 , the summary of the embodiments of the present invention is described. The following summary does not list all the embodiments of the present invention. According to the description of this specification, the present invention can also have other embodiments.

[0082] Figure 1 It is a flowchart of a low power consumption receiving method according to one embodiment of the present invention.

[0083] like Figure 1 As shown, at 102, the user equipment receives low power consumption reception configuration information including a serving cell quality threshold from the network.

[0084] At 104, the user equipment determines whether there is an ongoing process using the primary receiver. If it is determined in 104 that there is an ongoing process using the primary receiver, then at 110, the primary receiver is used. If the determination in 104 is "no", then at 106, the user equipment determines whether the serving cell quality of the corresponding serving cell is not lower than the serving cell quality threshold. If it is determined in 106 that the serving cell quality is lower than the serving cell quality threshold, then proceed to 110 and use the primary receiver.

[0085] When the serving cell quality is not lower than the serving cell quality threshold and there is no ongoing process using the primary receiver, at 108 , the primary receiver is disabled and the low power wake-up receiver is enabled to listen to the low power wake-up signal for waking up the primary receiver.

[0086] In another example, the determination in 106 may be performed first, and when it is determined that the serving cell quality is not lower than the serving cell quality threshold, it is then determined whether there is an ongoing process using the primary receiver.

[0087] Figure 1The example shown can be applied to user equipment in an RRC connected state, and can also be applied to equipment in an RRC idle state or an RRC inactive state.

[0088] When the user equipment is in the RRC idle state or the RRC inactive state, it can be determined that there is an ongoing process using the main receiver when at least one of the following conditions is met: the user equipment receives a system message update indication; the user equipment sends a system message request message to the network; the user equipment receives a system message update indication and has not completed the system message acquisition process corresponding to the system message update indication; the user equipment sends a system message request message to the network and has not completed the system message acquisition process corresponding to the system message request message; the user equipment sends an RRC establishment request and has not received a request for the RRC establishment request. C establishment request RRC establishment message or RRC rejection message, and no cell reselection is performed; the user equipment receives an RRC rejection message for the RRC connection establishment or RRC recovery process, and has not yet entered the RRC connected state or RRC idle state, and has not performed cell reselection; after the user equipment sends an RRC recovery request message, it has not received one of the RRC recovery message, RRC establishment message, and RRC release message for the RRC recovery request message, and has not performed cell reselection; MBS service is in progress; small data transmission process is in progress; NR idle mode measurement is configured; random access process is in progress.

[0089] When the user equipment is in the RRC connected state, it can be determined that there is an ongoing process using the main receiver when at least one of the following conditions is met: the user equipment receives a system message update indication; the user equipment sends a system message request message to the network; the user equipment receives a system message update indication and has not yet completed the system message acquisition process corresponding to the system message update indication; the user equipment sends a system message request message to the network and has not yet completed the system message acquisition process corresponding to the system message request message; the user equipment sends an RRC reconstruction request message and has not yet received an RRC reconstruction message or an RRC establishment message for the RRC reconstruction request message; the user equipment initiates an RRC reconstruction process and has not yet selected a suitable NR cell; the user equipment receives an RRC reconfiguration message and has not yet completed the random access process on the target special cell; an MBS service is in progress; a random access process is in progress; and there is a suspended resource request.

[0090] It should be noted that, whether it is a user equipment in an RRC connected state, or a user equipment in an RRC idle state or an RRC inactive state, when determining that there is an ongoing process of using the main receiver, it is not necessary to use all of the conditions listed above. For example, in some examples, only one of the above conditions may be set. When the condition is met, it is determined that there is an ongoing process of using the main receiver, and when the condition is not met, it is determined that there is no ongoing process of using the main receiver. In another example, two of the conditions may be set. As long as any one of the two conditions is met, it is determined that there is an ongoing process of using the main receiver, and when both conditions are not met, it is determined that there is no ongoing process of using the main receiver. When more of the above-listed conditions are set, the same applies. Of course, conditions other than the above-listed conditions may also be added. As long as at least one of the conditions adopted is included in the above-listed conditions, they all fall within the scope of the present invention.

[0091] Figure 2 It is a flowchart of a low power consumption receiving method executed by a user equipment in an RRC idle state or an RRC inactive state according to another embodiment of the present invention. Figure 2 In the process, the starting state is that the user equipment is using a low power consumption wake-up receiver.

[0092] like Figure 2 As shown, at 202, it is determined whether the quality of the serving cell is lower than the quality threshold of the serving cell. When it is determined that the quality of the serving cell is lower than the quality threshold of the serving cell, at 204, the main receiver is used. When it is determined that the quality of the serving cell is not lower than the quality threshold of the serving cell, the current state is maintained, that is, the low power consumption wake-up receiver is continued to be used.

[0093] Next, in 206, it is determined whether a first predetermined time has passed since the use of the primary receiver was started in 204. Whether the first predetermined time has passed may be determined by a first timer. In this case, the first timer may be started when it is determined that the serving cell quality of the serving cell is lower than the serving cell quality threshold. When the first timer expires, it may be determined that the first predetermined time has passed. If the first timer is in a running state, the first predetermined time has not passed. In this case, the low-power reception configuration information may also include an indication value of the first timer.

[0094] Before the first predetermined time has passed, the operation of disabling the main receiver and enabling the low-power wake-up receiver is not performed to avoid frequent switching of the main receiver to the low-power wake-up receiver due to unstable quality of the serving cell. Specifically, if it is determined in 206 that the first predetermined time has not passed, 204 is continued to be performed, that is, the main receiver is continued to be used, and the next determination is not performed.

[0095] Only when it is determined that the first predetermined time has passed, the determination of whether to switch to the low-power wake-up receiver is continued, that is, the determination of 208 and 210 is continued, and when the determination result of 208 is "no" and the determination result of 210 is "yes", the main receiver is disabled and the low-power wake-up receiver is enabled to listen for the low-power wake-up signal. Figure 2 208~214 and Figure 1 106 to 110 are the same, and thus their description will not be repeated.

[0096] Furthermore, in another example, for Figure 2 In the process shown, the determination in step 208 may be omitted.

[0097] Figure 3 It is a flowchart of a low power consumption receiving method executed by a user equipment in an RRC connected state according to another embodiment of the present invention. Figure 3 It is an example for a user equipment entering a new cell.

[0098] like Figure 3 As shown, in 302, when the user equipment in the RRC connected state enters a new serving cell, the primary receiver is used. Moreover, when entering the new cell and starting to use the primary receiver, timing is started.

[0099] At 304, the user equipment determines whether a second predetermined time has passed since the primary receiver was started to be used. Whether the second predetermined time has passed can be determined by a second timer. In this case, the first timer can be started when the user equipment enters a new serving cell and starts to use the primary receiver. When the second timer expires, it can be determined that the second predetermined time has passed. If the second timer is in a running state, the second predetermined time has not passed. In this case, the low-power reception configuration information also includes an indication value of the second timer.

[0100] Before the second predetermined time has passed since the use of the main receiver, the operation of disabling the main receiver and enabling the low-power wake-up receiver is not performed to avoid frequent switching of the main receiver to the low-power wake-up receiver due to unstable quality of the serving cell. Specifically, if it is determined in 304 that the second predetermined time has not passed, 312 is executed, that is, the main receiver is continued to be used, and the next determination is not performed.

[0101] Only when it is determined that the second predetermined time has passed, the determination of whether to switch to the low-power wake-up receiver is continued, that is, the determination of 306 and 308 is continued, and when the determination result of 306 is "no" and the determination result of 308 is "yes", the main receiver is disabled and the low-power wake-up receiver is enabled to listen for the low-power wake-up signal. Figure 3 306~310 and Figure 1106 to 110 are the same, and thus their description will not be repeated.

[0102] Furthermore, in another example, for Figure 3 In the process shown, the determination in step 306 may be omitted.

[0103] Figure 4 It is a flowchart of a low power consumption receiving method according to another embodiment of the present invention.

[0104] like Figure 4 As shown, at 402, the user equipment in the RRC connection state receives an RRC connection release message from the network. The RRC connection release message includes an indication of whether to use a low power consumption wake-up receiver or a main receiver after releasing the RRC connection.

[0105] At 404, the user equipment releases the RRC connection and enters the RRC idle state or the RRC inactive state. After the user equipment enters the RRC idle state or the RRC inactive state, at 406, based on the indication of the RRC connection release message, one of the low power consumption wake-up receiver and the main receiver is selected for use.

[0106] After initially entering the RRC idle state or the RRC inactive state and selecting the receiver to be used, the user equipment may further switch between the main receiver and the low power consumption wake-up receiver based on the method described above.

[0107] Hereinafter, several embodiments of the present invention for solving the above problems are described in detail.

[0108] Example 1

[0109] This embodiment is directed to the RRC idle state and / or the RRC inactive state.

[0110] Optionally, in step one, the UE receives LP-WUS / WUR configuration information sent by the network. Optionally, the network may send LP-WUS / WUR configuration information via a system message, an RRC message, a MAC CE, or a physical layer indication. Optionally, the LP-WUS / WUR configuration information may include, but is not limited to: the time-frequency position of the LP-WUS / WUR, the transmission period of the LP-WUS / WUR and other information, and the service cell quality threshold of the LP-WUS / WUR (optionally, the threshold is the service cell quality threshold of the LP-WUS / WUR in the RRC idle state and / or the RRC inactive state).

[0111] Optionally, in step 2, the UE determines whether to enable LP-WUS / WUR and / or whether to disable MR.

[0112] Optionally, (UE is using MR) when there is no process to use MR in progress, the UE performs judgment on the quality of the serving cell. Optionally, if the quality of the serving cell is good, the UE enables LP-WUS / WUR and / or disables MR (or MR enters sleep).

[0113] Or, optionally, (the UE is using MR) when no procedure to use MR is in progress and the quality of the serving cell is good, the UE enables LP-WUS / WUR and / or deactivates MR (or MR enters sleep).

[0114] Optionally, “there is a process in progress to use MR” may be described as the UE satisfying at least one of the following conditions:

[0115] -The UE receives a system message update indication;

[0116] -UE sends a system message request message to the network;

[0117] -The UE has not completed the corresponding system message acquisition procedure since the UE received the system message update indication;

[0118] -The UE has not completed the corresponding system message acquisition process since the UE sent a system message request message to the network;

[0119] - The T300 timer, and / or the T302 timer, and / or the T319 timer, and / or the T390 timer are running;

[0120] -MBS business / service / session is ongoing;

[0121] -Small Data Transmission (SDT) process is in progress;

[0122] -The UE is configured with NR idle mode measurements (idleModeMeasurementsNR);

[0123] - A random access procedure is in progress.

[0124] "There is no process in progress that will use MR" is the opposite of the above "There is a process in progress that will use MR". That is, optionally, if "There is a process in progress that will use MR" contains N items that meet the above conditions (N>=1), then if none of the N items of the above conditions are met, it can be considered that "there is no process in progress that will use MR".

[0125] Among them, optionally, "good service cell quality" may refer to a service cell quality higher than (or equal to) a service cell quality threshold of LP-WUS / WUR configured in step 1. Optionally, the service cell quality may be the RSRP / RSRQ of a reference signal sent on the service cell measured by MR and / or LP-WUR.

[0126] The UE starts the T300 timer when it sends an RRC Setup Request message and starts the T300 timer when it receives an RRC Setup message or an RRC Reject message from the network. j ect) message or cell reselection occurs, stop the T300 timer.

[0127] in , When the UE receives the RRC connection establishment or RRC reply procedure of RRCReject The T302 timer is started when the UE receives a RRCReject message (the RRCReject message carries the waiting time waitTime), and the T302 timer is stopped when the UE enters the RRC connected state or the RRC idle state, or when the cell is reselected.

[0128] Among them, the T319 timer is started when the UE sends an RRC recovery request (RRCResumeRequest) message, and the T319 timer is stopped when the UE receives an RRC recovery (RRCResume) message, or an RRC establishment (RRCSetup) message, or an RRC release (RRCRelease) message, or a cell reselection.

[0129] Among them, the UE starts the T390 timer when the access attempt is prohibited, and stops the T390 timer when the cell is reselected, or the UE enters the RRC connected state, or receives the RRCRelease message.

[0130] Example 2

[0131] This embodiment is directed to the RRC idle state and / or the RRC inactive state.

[0132] According to Example 1, step 1 of this embodiment is the same as step 1 of Example 1.

[0133] Optionally, in step 2, the UE determines whether to continue using the MR.

[0134] Optionally, (UE is using MR) if there is a process of using MR in progress, then UE continues to use MR. The meaning of "there is a process of using MR in progress" is the same as that in Embodiment 1.

[0135] Among them, the meanings of T300, T302, T319, and T390 timers are the same as those in Example 1.

[0136] Example 3

[0137] This embodiment is directed to the RRC idle state and / or the RRC inactive state.

[0138] Optionally, the UE receives an RRC connection release message sent by the network in the RRC connected state, and the message carries an indication of using MR or LP-WUS / WUR (or an indication of whether to use LP-WUS / WUR, or an indication of whether to use MR).

[0139] The UE determines the receiver to be used after entering the RRC idle state or the RRC inactive state according to the indication. For example, if the indication indicates the use of LP-WUS / WUR, the UE enables LP-WUS / WUR after entering the RRC idle state or the RRC inactive state.

[0140] Example 4

[0141] This embodiment is for the RRC connected state.

[0142] Optionally, in step one, the UE receives LP-WUS / WUR configuration information sent by the network. Optionally, the network may send LP-WUS / WUR configuration information via a system message, an RRC message, a MAC CE, or a physical layer indication. Optionally, the LP-WUS / WUR configuration information may include, but is not limited to: the time-frequency position of the LP-WUS / WUR, the transmission period of the LP-WUS / WUR, and other information, and the service cell quality threshold of the LP-WUS / WUR (optionally, the threshold is the service cell quality threshold of the LP-WUS / WUR in the RRC connected state).

[0143] Optionally, (UE is using MR) when there is no process to use MR in progress, the UE performs judgment on the quality of the serving cell. Optionally, if the quality of the serving cell is good, the UE enables LP-WUS / WUR and / or disables MR (or MR enters sleep).

[0144] Or, optionally, (the UE is using MR) when the UE has no process of using MR in progress and the quality of the serving cell is good, the UE enables LP-WUS / WUR and / or deactivates MR (or MR enters sleep).

[0145] Alternatively, optionally, “there is a process in progress to use MR” may be described as the UE satisfying at least one of the following conditions:

[0146] -The UE receives a system message update indication;

[0147] -UE sends a system message request message to the network;

[0148] -The UE has not completed the corresponding system message acquisition procedure since the UE received the system message update indication;

[0149] -The UE has not completed the corresponding system message acquisition process since the UE sent a system message request message to the network;

[0150] -T301 timer, and / or T304 timer, and / or T311 timer are running;

[0151] -MBS business / service / session is ongoing;

[0152] - There is a random access procedure in progress;

[0153] -There is a pending resource request (SR).

[0154] "There is no process in progress that will use MR" is the opposite of the above "There is a process in progress that will use MR". That is, optionally, if "There is a process in progress that will use MR" contains N items that meet the above conditions (N>=1), then if none of the N items of the above conditions are met, it can be considered that "there is no process in progress that will use MR".

[0155] Among them, optionally, "good service cell quality" may refer to a service cell quality higher than (or equal to) a service cell quality threshold of LP-WUS / WUR configured in step 1. Optionally, the service cell quality may be the RSRP / RSRQ of a reference signal sent on the service cell measured by MR and / or LP-WUR.

[0156] Among them, optionally, the T301 timer is started when the UE sends an RRC reestablishment request (RRCReestabilshmentRequest) message, and the T301 timer is stopped when the RRC reestablishment (RRCReestablishment) message or the RRC establishment (RRCSetup) message is received. Optionally, the T311 timer is started when the UE initiates the RRC reestablishment process, and the T311 timer is stopped when a suitable NR cell is selected. The T304 timer is a switching timer. The T304 timer is started after the UE receives an RRC reconfiguration message with synchronous reconfiguration, and the T304 timer is stopped after the random access process on the target SpCell is successfully completed.

[0157] Example 5

[0158] This embodiment is directed to the RRC connected state, the RRC idle state and the RRC inactive state.

[0159] Optionally, the step is the same as step 1 of embodiment 1, or the same as step 1 of embodiment 4. The difference is that the LP-WUS / WUR configuration information received by the UE may also include a prohibition timer T1 (such as the value of T1).

[0160] Optionally, in step 2, due to poor quality of the serving cell, the UE changes from using LP-WUR to using MR, and the UE starts the prohibition timer T1 (according to the value of T1 configured in step 1). Optionally, "poor quality of the serving cell" may refer to the serving cell quality being lower than the serving cell quality threshold of LP-WUS / WUR configured in step 1. Optionally, the serving cell quality may be the RSRP / RSRQ of the reference signal sent on the serving cell measured by MR and / or LP-WUR.

[0161] Optionally, in step three, the UE determines whether to enable LP-WUS / WUR and / or whether to disable MR.

[0162] Optionally, (UE is using MR) if the prohibition timer T1 is not running, the UE performs a judgment on the quality of the serving cell. Optionally, if the quality of the serving cell is good, the UE enables LP-WUS / WUR and / or deactivates MR (or MR enters sleep).

[0163] Or, optionally, (the UE is using MR) if the prohibition timer T1 is not running and the quality of the serving cell is good, the UE enables LP-WUS / WUR and / or deactivates MR (or MR enters sleep).

[0164] Among them, optionally, "good service cell quality" may refer to a service cell quality higher than (or equal to) a service cell quality threshold of LP-WUS / WUR configured in step 1. Optionally, the service cell quality may be the RSRP / RSRQ of a reference signal sent on the service cell measured by MR and / or LP-WUR.

[0165] Example 6

[0166] This embodiment is directed to the RRC idle state and the RRC inactive state.

[0167] Optionally, the steps are the same as step 1 of embodiment 1. The difference is that the LP-WUS / WUR configuration information received by the UE may also include a value of the T2 duration.

[0168] Optionally, in step 2, the UE determines whether to enable LP-WUS / WUR and / or whether to disable MR.

[0169] Optionally, (UE is using MR) after UE selects (or reselects) a new cell and has used MR for at least T2 duration, the UE performs a judgment on the quality of the serving cell. Optionally, if the quality of the serving cell is good, the UE enables LP-WUS / WUR and / or disables MR (or MR goes to sleep).

[0170] Or, optionally, (the UE is using MR) after the UE has used MR for at least T2 time after selecting (or reselecting) a new cell, and the quality of the serving cell is good, the UE enables LP-WUS / WUR and / or deactivates MR (or MR goes to sleep).

[0171] Among them, optionally, "good service cell quality" may refer to a service cell quality higher than (or equal to) a service cell quality threshold of LP-WUS / WUR configured in step 1. Optionally, the service cell quality may be the RSRP / RSRQ of a reference signal sent on the service cell measured by MR and / or LP-WUR.

[0172] Example 7

[0173] This embodiment is for the RRC connected state.

[0174] Optionally, when the source gNB decides to switch the UE to the target gNB, the source gNB sends a handover preparation information (HandoverPreparationInformation) message to the target gNB, and carries the receiver information currently used by the UE in the message, that is, whether the UE is currently using MR or LP-WUS / WUR.

[0175] Through this method, when the UE undergoes cell switching, the target-side gNB can be informed of the receiver used by the UE in the source-side gNB, thereby assisting the target-side gNB in ​​deciding which receiver (MR or LP-WUS / WUR) the UE uses.

[0176] Figure 5 1 is a simplified structural diagram of a user equipment UE according to the present invention. Figure 5 As shown, the user equipment UE900 includes a processor 501 and a memory 502. The processor 901 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 502 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memories, etc. The memory 502 stores program instructions. When the instructions are executed by the processor 501, the above method performed by the user equipment described in detail in the present invention may be executed.

[0177] The program running on the device according to the present invention can be a program that enables a computer to implement the functions of the embodiments of the present invention by controlling a central processing unit (CPU). The program or the information processed by the program can be temporarily stored in a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory systems.

[0178] The program for realizing the functions of various embodiments of the present invention can be recorded on a computer-readable recording medium. The corresponding functions can be realized by making a computer system read the program recorded on the recording medium and executing these programs. The so-called "computer system" herein can be a computer system embedded in the device, and can include an operating system or hardware (such as a peripheral device). "Computer-readable recording medium" can be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium of a short-term dynamic storage program, or any other recording medium that is computer-readable.

[0179] The various features or functional modules of the devices used in the above embodiments can be implemented or executed by circuits (e.g., single-chip or multi-chip integrated circuits). Circuits designed to perform the functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above devices. The general-purpose processor may be a microprocessor, or any existing processor, controller, microcontroller, or state machine. The above circuits may be digital circuits or analog circuits. In the case where new integrated circuit technologies have emerged to replace 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.

[0180] In addition, the present invention is not limited to the above-mentioned 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 can be used as terminal devices or communication devices, such as AV equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, and other household appliances.

[0181] As mentioned 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 embodiments, and the present invention also includes any design changes that do not deviate from the main purpose of the present invention. In addition, the present invention can be modified in various ways within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. In addition, the components with the same effect described in the above embodiments can be replaced with each other.

Claims

1. A low power consumption receiving method performed by a user equipment, comprising: receiving low power reception configuration information including a serving cell quality threshold from a network; as well as When the service cell quality of the service cell corresponding to the user equipment is not lower than the service cell quality threshold and there is no ongoing process using the main receiver of the user equipment, the main receiver is disabled and the low-power wake-up receiver is enabled to listen for a low-power wake-up signal for waking up the main receiver.

2. The method according to claim 1, further comprising: In a case where it is determined that there is no ongoing process using the primary receiver, it is determined whether the serving cell quality of the serving cell is not lower than the serving cell quality threshold.

3. The method according to claim 1 or 2, wherein: When the user equipment is in an RRC idle state or an RRC inactive state, the method further includes: When at least one of the following conditions is met, it is determined that there is an ongoing process using the primary receiver: The user equipment receives a system message update indication; The user equipment sends a system message request message to the network; The user equipment receives a system message update indication, and does not complete a system message acquisition process corresponding to the system message update indication; The user equipment sends a system message request message to the network, and does not complete the system message acquisition process corresponding to the system message request message; The user equipment has sent an RRC establishment request, has not received an RRC establishment message or an RRC rejection message for the RRC establishment request, and has not performed cell reselection; The user equipment receives an RRC rejection message for an RRC connection establishment or RRC recovery process, and has not yet entered an RRC connected state or an RRC idle state, and has not performed cell reselection; After the user equipment sends the RRC recovery request message, one of the RRC recovery message, the RRC establishment message, and the RRC release message for the RRC recovery request message has not been received, and cell reselection has not been performed; MBS business is ongoing; Small data transfer process is in progress; Configured for NR idle mode measurements; Random access procedure in progress.

4. The method according to claim 1 or 2, wherein: When the user equipment is in an RRC idle state or an RRC inactive state, the method further includes: In a case where it is determined that the serving cell quality of the serving cell is lower than the serving cell quality threshold, using the primary receiver; and After the primary receiver starts to be used because the serving cell quality of the serving cell is lower than the serving cell quality threshold, the operation of disabling the primary receiver and enabling the low power consumption wake-up receiver is not performed before a first predetermined time passes from the start of using the primary receiver.

5. The method according to claim 4, wherein: determining whether the first predetermined time has passed by using a first timer, The first timer is started when it is determined that the serving cell quality of the serving cell is lower than the serving cell quality threshold, and the low-power reception configuration information also includes an indication value of the first timer.

6. The method according to claim 1 or 2, wherein: When the user equipment is in an RRC connected state, the method further includes: When at least one of the following conditions is met, it is determined that there is an ongoing process using the primary receiver: The user equipment receives a system message update indication; The user equipment sends a system message request message to the network; The user equipment receives a system message update indication, and has not yet completed a system message acquisition process corresponding to the system message update indication; The user equipment has sent a system message request message to the network, and has not yet completed a system message acquisition process corresponding to the system message request message; The user equipment has sent an RRC re-establishment request message, and has not received an RRC re-establishment message or an RRC establishment message for the RRC re-establishment request message; The user equipment has initiated an RRC reestablishment procedure and has not yet selected a suitable NR cell; The user equipment receives the RRC reconfiguration message and has not yet completed the random access procedure on the target special cell; MBS business is ongoing; The random access procedure is in progress; There are pending resource requests.

7. The method according to claim 1 or 2, wherein: When the user equipment is in an RRC connected state, the method further includes: When the user equipment enters a new serving cell, the primary receiver is used, and before a second predetermined time has passed since the primary receiver was used, an operation of deactivating the primary receiver and activating the low power consumption wake-up receiver is not performed.

8. The method according to claim 7, wherein: determining whether the second predetermined time has passed by using a second timer, The second timer is started when the user equipment enters the new serving cell and starts to use the primary receiver, and the low-power reception configuration information further includes an indication value of the second timer.

9. The method according to claim 1 or 2, further comprising: A user equipment in an RRC connected state receives an RRC connection release message from the network, wherein the RRC connection release message includes an indication of whether to use the low power consumption wake-up receiver or the main receiver after releasing the RRC connection; as well as After the user equipment enters the RRC idle state or the RRC inactive state, based on the indication of the RRC connection release message, one of the low power consumption wake-up receiver and the main receiver is selected for use.

10. A user equipment, comprising: processor; as well as Memory, which stores instructions, Wherein, when the instructions are executed by the processor, the method according to any one of claims 1 to 9 is performed.

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