Method for paging a group of wireless terminals

Abstract

The present disclosure discloses a wireless communication method for use in a wireless terminal, which includes receiving paging indication information from a wireless network node, the paging indication information being associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups, and performing a paging operation based on the paging indication information.

Description

[0001] This document is generally targeted at wireless communications.

[0002] In a 5G mobile communication system, a user equipment (UE) in a radio resource control (RRC) idle mode or an RRC inactive mode monitors a paging opportunity (PO) in each paging cycle (i.e., a discontinuous reception (DRX) cycle). However, the UE may not have a paging message in each paging cycle. In this case, the UE may monitor the PDCCH in the corresponding physical downlink control channel (PDCCH) monitoring opportunity of a paging cycle and may not be able to successfully decode the paging scheduling information in the paging cycle. Even worse, there may be no corresponding paging message (e.g., physical downlink shared channel (PDSCH)) at all in the paging cycle. Therefore, a large amount of power may be wasted on unnecessary PDCCH monitoring, especially when the UE has a low paging probability.

[0003] In another scenario, the UE may successfully decode the PDCCH, but the paging message (eg, PDSCH) scheduled by the PDCCH is used for another UE. That is, the UE may spend unnecessary power on receiving a PDSCH that is not related to itself.

[0004] Therefore, how to eliminate the power consumption spent on unnecessary paging monitoring becomes a topic of interest.

[0005] This document relates to methods, systems, and apparatus for paging groups of wireless terminals.

[0006] The present disclosure relates to a wireless communication method for use in a wireless terminal. The wireless communication method includes: receiving paging indication information from a wireless network node, the paging indication information being associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups, and performing a paging operation based on the paging indication information.

[0007] Various embodiments may optionally implement the following features:

[0008] Optionally, the wireless terminal is classified into one of the plurality of wireless terminal groups based on at least one of: a subset of identities of the wireless terminal, a paging probability of the wireless terminal, or at least one higher layer signaling.

[0009] Optionally, the identifier of the wireless terminal is a user equipment identifier or a temporary mobile subscription identifier.

[0010] Optionally, the paging operation includes at least one of the following: monitoring paging occasions, not monitoring paging occasions, receiving at least one of paging scheduling information, paging messages or reference signals from a wireless network node, or not receiving at least one of paging scheduling information, paging messages or reference signals from a wireless network node, wherein the reference signal includes at least one of the following: a synchronization signal block, a channel state information reference signal or a tracking reference signal.

[0011] Optionally, at least one of the paging occasion, the paging scheduling information or the paging message is in a first paging cycle, and the paging indication information is configured to be in the first paging cycle.

[0012] Optionally, the paging indication information is configured in a first paging cycle, wherein at least one of the paging occasion, the paging scheduling information, the paging message or the reference signal is in at least one second paging cycle after the first paging cycle.

[0013] Optionally, the paging indication information includes at least one of the following: downlink control information, a demodulation reference signal, a time domain resource of a physical downlink control channel carrying paging scheduling information, or a frequency domain resource of a physical downlink control channel carrying paging scheduling information.

[0014] Optionally, the downlink control information includes first downlink control information, the first downlink control information includes a paging occasion reception indicator field, wherein the paging occasion reception indicator field indicates a paging operation.

[0015] Optionally, the paging occasion reception indicator field includes at least one of the following:

[0016] at least one reserved bit among the reserved bits in the first downlink control information,

[0017] at least one reserved bit in the reserved bits of the short message field in the first downlink control information, or

[0018] Fields associated with the configuration of paging message related operations.

[0019] Optionally, the downlink control information includes second downlink control information, wherein the first downlink control information and the second downlink control information are different in at least one of the following: being scrambled with different radio network temporary identifiers, having different time-frequency resources, or a bit field indicating one of the first downlink control information or the second downlink control information.

[0020] Optionally, the second downlink control information does not have a paging occasion reception indicator field.

[0021] Optionally, the downlink control information includes third downlink control information, and the third downlink control information includes at least one of the following:

[0022] Short message field,

[0023] at least one paging occasion reception indicator field indicating a paging operation for at least one wireless terminal group among a plurality of wireless terminal groups,

[0024] a short message indicator field indicating the presence or absence of at least one of a short message field or at least one paging occasion reception indicator field, or

[0025] Reference signal indicator field, indicating reference signal operation.

[0026] Optionally, the third downlink control information is configured for at least one wireless terminal group among the plurality of wireless terminal groups.

[0027] Optionally, the short message indicator field includes at least one of the following: a first code point, indicating that there is only at least one paging occasion reception indicator field in the third downlink control information; a second code point, indicating that there is only a short message field in the third downlink control information; or a third code point, indicating that there are both at least one paging occasion reception indicator field and a short message field in the third downlink control information.

[0028] Optionally, the downlink control information includes fourth downlink control information, wherein the third downlink control information and the fourth downlink control information are different in at least one of the following: scrambled with different radio network temporary identifiers, having different time-frequency resources, or having different formats.

[0029] Optionally, the fourth downlink control information does not have a paging occasion reception indicator field.

[0030] Optionally, the paging occasion reception indicator field comprises a bitmap, wherein each bit in the bitmap is associated with one of the plurality of wireless terminal groups.

[0031] Optionally, the paging occasion reception indicator field includes at least one identifier of at least one wireless terminal group associated with the paging indication information.

[0032] Optionally, the identifier is one of the following: a group identifier, a user equipment identifier, a subset of user equipment identifiers, a temporary mobile subscription identifier, or a subset of temporary mobile subscription identifiers.

[0033] Optionally, the paging indication information includes at least one of time domain resources or frequency domain resources of a physical downlink control channel, wherein the wireless terminal monitors the physical downlink control channel based on at least one of the time domain resources or the frequency domain resources.

[0034] Optionally, the downlink control information is associated with the first wireless terminal group, and a cyclic redundancy check of the downlink control information is scrambled with a radio network temporary identifier.

[0035] Optionally, the radio network temporary identifier includes at least one of the following: a group common radio network temporary identifier configured for a first wireless terminal group and at least one second wireless terminal group among multiple wireless terminal groups, or a group radio network temporary identifier configured for the first wireless terminal group.

[0036] Optionally, the demodulation reference signal includes at least one of a demodulation reference signal of a physical downlink control channel or a demodulation reference signal of a physical downlink shared channel, wherein an identifier of at least one wireless terminal group associated with the paging indication information is used for at least one of the following: scrambling the demodulation reference signal, or determining an initialization seed for the demodulation reference signal.

[0037] Optionally, the identifier is one of the following: a group identifier, a user equipment identifier, a subset of user equipment identifiers, a temporary mobile subscription identifier, or a subset of temporary mobile subscription identifiers.

[0038] The present disclosure relates to a wireless communication method for use in a wireless network node. The wireless communication method includes: sending paging indication information to at least one wireless terminal, the paging indication information being associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups, and sending paging related information based on the paging indication information.

[0039] Various embodiments may optionally implement the following features:

[0040] Optionally, each of the at least one wireless terminal is classified into one of the multiple wireless terminal groups based on at least one of the following: a subset of the identification of each of the at least one wireless terminal, a paging probability of each of the at least one wireless terminal, or at least one high-layer signaling.

[0041] Optionally, the identifier of each wireless terminal in the at least one wireless terminal is a user equipment identifier or a temporary mobile subscription identifier.

[0042] Optionally, the paging operation includes at least one of the following: monitoring paging occasions, not monitoring paging occasions, receiving paging-related information from a wireless network node, the paging-related information including at least one of paging scheduling information, a paging message, or a reference signal, or not receiving paging-related information from a wireless network node, the paging-related information including at least one of paging scheduling information, a paging message, or a reference signal, wherein the reference signal includes at least one of the following: a synchronization signal block, a channel state information reference signal, or a tracking reference signal.

[0043] Optionally, at least one of the paging occasion, the paging scheduling information or the paging message is in a first paging cycle, and the paging indication information is configured to be in the first paging cycle.

[0044] Optionally, the paging indication information is configured in a first paging cycle, and at least one of the paging occasion, the paging scheduling information, the paging message or the reference signal is in at least one second paging cycle after the first paging cycle.

[0045] Optionally, the paging indication information includes at least one of the following: downlink control information, a demodulation reference signal, a time domain resource of a physical downlink control channel carrying paging scheduling information, or a frequency domain resource of a physical downlink control channel carrying paging scheduling information.

[0046] Optionally, the downlink control information includes first downlink control information, the first downlink control information includes a paging occasion reception indicator field, wherein the paging occasion reception indicator field indicates a paging operation.

[0047] Optionally, the paging occasion reception indicator field includes at least one of the following: at least one reserved bit of the reserved bits in the first downlink control information, at least one reserved bit of the reserved bits of the short message field in the first downlink control information, or a field associated with the configuration of paging message related operations.

[0048] Optionally, the downlink control information includes second downlink control information, wherein the first downlink control information and the second downlink control information are different in at least one of the following: being scrambled with different radio network temporary identifiers, having different time-frequency resources, or a bit field indicating one of the first downlink control information or the second downlink control information.

[0049] Optionally, the second downlink control information does not have a paging occasion reception indicator field.

[0050] Optionally, the downlink control information includes third downlink control information, and the third downlink control information includes at least one of the following:

[0051] Short message field,

[0052] at least one paging occasion reception indicator field indicating a paging operation,

[0053] a short message indicator field indicating the presence or absence of at least one of a short message field or at least one paging occasion reception indicator field, or

[0054] Reference signal indicator field, indicating reference signal operation.

[0055] Optionally, the third downlink control information is configured for at least one wireless terminal group among a plurality of wireless terminal groups.

[0056] Optionally, the short message indicator field includes at least one of the following: a first code point, indicating that there is only at least one paging occasion reception indicator field in the third downlink control information; a second code point, indicating that there is only a short message field in the third downlink control information; or a third code point, indicating that there are both at least one paging occasion reception indicator field and a short message field in the third downlink control information.

[0057] Optionally, the downlink control information includes fourth downlink control information, wherein the third downlink control information and the fourth downlink control information are different in at least one of the following: scrambled with different radio network temporary identifiers, having different time-frequency resources, or having different formats.

[0058] Optionally, the fourth downlink control information does not have a paging occasion reception indicator field.

[0059] Optionally, the paging occasion reception indicator field comprises a bitmap, wherein each bit in the bitmap is associated with one of the plurality of wireless terminal groups.

[0060] Optionally, the paging occasion reception indicator field includes at least one identifier of at least one wireless terminal group associated with the paging indication information.

[0061] Optionally, the identifier is one of the following: a group identifier, a user equipment identifier, a subset of user equipment identifiers, a temporary mobile subscription identifier, or a subset of temporary mobile subscription identifiers.

[0062] Optionally, the paging indication information includes at least one of time domain resources or frequency domain resources of a physical downlink control channel, wherein the wireless terminal monitors the physical downlink control channel based on at least one of the time domain resources or the frequency domain resources.

[0063] Optionally, the downlink control information is associated with a first wireless terminal group of the plurality of wireless terminal groups, and a cyclic redundancy check of the downlink control information is scrambled with a radio network temporary identifier.

[0064] Optionally, the radio network temporary identifier includes at least one of the following: a group common radio network temporary identifier configured for a first wireless terminal group and at least one second wireless terminal group among multiple wireless terminal groups, or a group radio network temporary identifier configured for the first wireless terminal group.

[0065] Optionally, the demodulation reference signal includes at least one of a demodulation reference signal of a physical downlink control channel or a demodulation reference signal of a physical downlink shared channel, wherein an identifier of at least one wireless terminal group associated with the paging indication information is used for at least one of the following: scrambling the demodulation reference signal, or determining an initialization seed for the demodulation reference signal.

[0066] Optionally, the identifier is one of the following: a group identifier, a user equipment identifier, a subset of user equipment identifiers, a temporary mobile subscription identifier, or a subset of temporary mobile subscription identifiers.

[0067] The present disclosure relates to a wireless terminal, which includes a communication unit configured to receive paging indication information from a wireless network node, the paging indication information being associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups, and a processor configured to perform a paging operation based on the paging indication information.

[0068] Various embodiments may optionally implement the following features:

[0069] Optionally, the processor is further configured to execute the wireless communication method of any one of the aforementioned methods.

[0070] The present disclosure relates to a wireless network node, which includes a communication unit configured to send paging indication information to at least one wireless terminal, the paging indication information being associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups, and to send paging related information based on the paging indication information.

[0071] Various embodiments may optionally implement the following features:

[0072] Optionally, the wireless network node further includes a processor configured to execute the wireless communication method of any one of the aforementioned methods.

[0073] The present disclosure relates to a computer program product, including a computer-readable program medium code stored thereon, and when the code is executed by a processor, the processor implements the wireless communication method described in any one of the aforementioned methods.

[0074] The exemplary embodiments disclosed herein are intended to provide features that will become readily apparent by reference to the following description when combined with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented in an exemplary and non-limiting manner, and that various modifications made to the disclosed embodiments will be apparent to those of ordinary skill in the art who read this disclosure while remaining within the scope of this disclosure.

[0075] Therefore, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. In addition, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary methods. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be rearranged while remaining within the scope of the present disclosure. Therefore, it will be understood by those of ordinary skill in the art that the methods and techniques disclosed herein present individual steps or actions in a sample order, and unless otherwise expressly stated, the present disclosure is not limited to the specific order or hierarchy presented.

[0076] The above and other aspects and embodiments thereof are described in more detail in the drawings, the description and the claims.

[0077] Figure 1 An example of a schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown.

[0078] Figure 2 An example of a schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown.

[0079] Figure 3 A schematic diagram of a paging occasion according to an embodiment of the present disclosure is shown.

[0080] Figure 4 A schematic diagram showing paging occasions in consecutive paging cycles according to an embodiment of the present disclosure is shown.

[0081] Figure 5 A schematic diagram showing paging occasions in consecutive paging cycles according to an embodiment of the present disclosure is shown.

[0082] Figure 6 A schematic diagram showing group common paging downlink control information according to an embodiment of the present disclosure is shown.

[0083] Figure 7 A schematic diagram showing group common paging downlink control information according to an embodiment of the present disclosure is shown.

[0084] Figure 8 A flow chart illustrating a process according to an embodiment of the present disclosure is shown.

[0085] Fig. 9 A flow chart illustrating a process according to an embodiment of the present disclosure is shown.

[0086] Figure 1A schematic diagram of a wireless terminal 10 according to an embodiment of the present disclosure is provided. The wireless terminal 10 may be a user equipment (UE), a mobile phone, a laptop, a tablet computer, an e-book, or a portable computer system, and is not limited thereto. The wireless terminal 10 may include a processor 100 (such as a microprocessor or an application-specific integrated circuit (ASIC)), a storage unit 110, and a communication unit 120. The storage unit 110 may be any data storage device that stores program code 112, which is accessed and executed by the processor 100. Embodiments of the storage unit 112 include, but are not limited to, a subscriber identity module (SIM), a read-only memory (ROM), a flash memory, a random access memory (RAM), a hard disk, and an optical data storage device. The communication unit 120 may be a transceiver and is used to send and receive signals (e.g., messages or packets) based on the processing results of the processor 100. In an embodiment, the communication unit 120 communicates with the user via a memory device 112. Figure 1 At least one antenna 122 is shown for transmitting and receiving signals.

[0087] In an embodiment, the storage unit 110 and the program code 112 may be omitted, and the processor 100 may include the storage unit having the stored program code.

[0088] Processor 100 may implement any of the steps in the exemplary embodiments on wireless terminal 10 , for example, by executing program code 112 .

[0089] The communication unit 120 may be a transceiver. The communication unit 120 may be an alternative or additional combination of a sending unit and a receiving unit configured to send and receive signals to and from a wireless network node (eg, a base station), respectively.

[0090] Figure 2A schematic diagram of a radio network node 20 according to an embodiment of the present disclosure is provided. The radio network node 20 may be a satellite, a base station (BS), a network entity, a mobility management entity (MME), a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), a radio access network (RAN), a next generation RAN (NG-RAN), a data network, a core network, or a radio network controller (RNC), and is not limited thereto. In addition, the radio network node 20 may include (execute) at least one network function, such as an access and mobility management function (AMF), a session management function (SMF), a user premises function (UPF), a policy control function (PCF), an application function (AF), etc. The radio network node 20 may include a processor 200 (such as a microprocessor or an ASIC), a storage unit 210, and a communication unit 220. The storage unit 210 may be any data storage device storing a program code 212, which is accessed and executed by the processor 200. Examples of the storage unit 212 include, but are not limited to, a SIM, a ROM, a flash memory, a RAM, a hard disk, and an optical data storage device. The communication unit 220 may be a transceiver and is used to send and receive signals (eg, messages or packets) according to the processing result of the processor 200. In an example, the communication unit 220 transmits and receives signals (eg, messages or packets) via Figure 2 At least one antenna 222 is shown for transmitting and receiving signals.

[0091] In an embodiment, the storage unit 210 and the program code 212 may be omitted. The processor 200 may include a storage unit having stored program code.

[0092] The processor 200 may implement any of the steps described in the exemplary embodiments on the radio network node 20 , for example, by executing the program code 212 .

[0093] The communication unit 220 may be a transceiver. The communication unit 220 may be combined with a transmission unit and a reception unit as an alternative or in addition, which are configured to transmit and receive signals to and from a wireless terminal (eg, UE), respectively.

[0094] In an embodiment, a paging occasion (PO) is a set of physical downlink control channel (PDCCH) monitoring occasions in which paging downlink control information (DCI) may be sent. In addition, a paging frame (PF) is a radio frame and may include one or more POs or the starting point of a PO. The PF and PO used for paging are determined by the following formula:

[0095] The PF subframe number (SFN) is determined by the following formula:

[0096] (SFN+PF_offset)mod T=(T div N)*(UE_ID mod N)

[0097] The index (i_s) indicating the index of the PO is determined by the following formula:

[0098] i_s=floor(UE_ID / N)mod Ns

[0099] Wherein mod is an abbreviation of a modulo function that obtains a remainder, and UE_ID is an identification (ID) of a UE (eg, a UE ID).

[0100] In the present disclosure, the UE ID may be equal to the remainder of a temporary mobile subscriber identifier (TMSI) divided by 1024 (ie, TMSI mod 1024 or the last 10 bits of the TMSI).

[0101] In the present disclosure, the TMSI may be a 5G-S-TMSI, which is a bit string having 48 bits.

[0102] In the present disclosure, a field may represent a bit field.

[0103] In the present disclosure, an identification may be an identifier and vice versa.

[0104] In one paging cycle (i.e., discontinuous reception (DRX) cycle), multiple UEs may monitor the same PO. As long as one of the UEs is paged, all UEs monitoring the same PO need to receive the corresponding paging message (e.g., physical downlink shared channel (PDSCH)) scheduled by paging downlink control information (DCI) (e.g., DCI format 1_0 scrambled with a paging radio network temporary identifier (P-RNTI)) in the paging cycle, with the result that the UE may waste considerable power on receiving irrelevant paging messages. In order to improve the power efficiency of the UE, the present disclosure provides various embodiments of the paging method below. Note that the skilled person should recognize that the following embodiments may be implemented individually or in any possible combination.

[0105] Embodiment 1:

[0106] In this embodiment, various methods for grouping UEs are introduced. Note that the method described in this embodiment can be implemented in other embodiments of the present disclosure to divide (eg, classify or categorize) UEs into separate UE groups.

[0107] Grouping method:

[0108] Mode 1: Grouping based on UE ID or TMSI

[0109] In this embodiment, the UEs are divided (e.g., grouped, classified, or categorized) into separate UE groups based on the UE ID or TMSI (e.g., 5G-S-TMSI) of each UE in the UE. For example, based on a subset (e.g., part, a portion, or at least one bit) of the UE ID of each UE in the UE or a subset of the TMSI, the UEs monitoring the same PO are divided into separate UE groups. Note that each UE group in the UE group has (e.g., is configured as or is configured with) a group ID.

[0110] In an embodiment, UEs monitoring the same PO are divided into two UE groups based on a single bit of a binary UE ID or a binary TMSI. For example, the bit used to divide the UE into UE groups may be the last bit of a binary UE ID. A UE whose last bit of the UE ID is "0" is in one UE group, and a UE whose last bit of the binary UE ID is "1" is in another UE group. Alternatively, the bit used to divide the UE may be the first bit of a binary UE ID. A UE whose first bit of the binary UE ID is "0" is in one UE group, and a UE whose first bit of the binary UE ID is "1" is in another UE group. Alternatively, the bit used to divide the UE may be a single bit of a TMSI. For example, a UE whose 11th bit of the TMSI is "0" is in one UE group, and a UE whose 11th bit of the S-TMSI is "1" is in another UE group. Note that the 11th bit of the S-TMSI is obtained by calculating the bits of the binary S-TMSI in order from the least significant bit (LSB) to the most significant bit (MSB), e.g., from right to left.

[0111] In an embodiment, UEs monitoring the same PO are divided into four UE groups based on two bits of a binary UE ID or a binary TMSI. For example, the UEs are divided into four UE groups based on the last two bits of a binary UE ID or a binary TMSI. Alternatively, the UEs are divided into four UE groups based on the first two bits of a binary UE ID or a binary TMSI. Alternatively, the UEs are divided into four UE groups based on two bits of a binary TMSI. For example, the UEs are divided into four UE groups based on the 11th and 12th bits of the TMSI. Note that the 11th and 12th bits of the S-TMSI are obtained by calculating the bits of the binary S-TMSI in order from LSB to MSB (e.g., from right to left).

[0112] In an embodiment, each UE group in the UE group corresponds to a group ID. In an embodiment, the group ID may be a decimal number. In an embodiment, the group ID may be a binary sequence having N bits, where N is a positive integer.

[0113] In an embodiment, the group ID of the UE group is a part of the UE ID or a part of the TMSI. In an embodiment, the group ID may be a (multiple) bit used to group (e.g., divide) the UE into UE groups. For example, when the last two bits of the UE ID are used to group the UE into UE groups, when the last two bits in the UE ID of the UE are "00", the group ID of the UE is "00", when the last two bits in the UE ID of the UE are "01", the group ID of the UE is "01", and so on.

[0114] In an embodiment, a BS (eg, gNB) may broadcast group information of grouped UEs through system information. In an embodiment, the BS broadcasts the number N of UE groups. G , and the UE is based on the number of UE groups N G and N bits of its UE ID or TMSI determine its group ID, where and is a ceiling function that obtains the smallest integer greater than or equal to the variable X. For example, the BS may broadcast that the number of UE groups is 8 (ie, N G =8). In this case, the UEs may be grouped according to the last 3 digits of the UE ID. In addition, the last 3 digits of the UE ID may be the group ID of the UE group to which the UE belongs.

[0115] In an embodiment, the BS may broadcast certain bits of the UE ID and the corresponding group ID. For example, when the UE is divided into three UE groups based on the last two bits of the UE ID. In this example, the BS may broadcast that group ID "00" corresponds to a UE ID whose last two bits are "00" or "01", group ID "01" corresponds to a UE ID whose last two bits are "10", and / or group ID "10" corresponds to a UE ID whose last two bits are "11".

[0116] Mode 2: Grouping based on paging probability

[0117] In this embodiment, based on the paging probability of each UE in the UE, the UEs monitoring the same PO are divided into separate UE groups. In an embodiment, each UE group in the UE group has a group ID. For example, the paging probability can be divided into multiple intervals, and the UEs with the paging probability in the same interval are in the same UE group.

[0118] For example, the paging probability can be divided into 4 intervals:

[0119] Interval I1: paging probability is less than 0.1%;

[0120] Interval I2: the paging probability is greater than or equal to 0.1% and less than 1%;

[0121] Interval I3: paging probability is greater than or equal to 1% and less than 10%; and

[0122] Interval I4: the paging probability is greater than or equal to 10%.

[0123] In this case, the UE(s) having the paging probability in interval I1 are in a UE group, the UE(s) having the paging probability in interval I2 are in another UE group, and so on.

[0124] In an embodiment, each UE group in the UE group corresponds to a group ID. In an embodiment, the group ID may be a decimal number. In an embodiment, the group ID may be a binary sequence having N bits, where N is a positive integer.

[0125] In an embodiment, the BS may broadcast group information of grouped UEs through system information. In an embodiment, the BS may broadcast thresholds that divide the paging probability into separate intervals, and the UE determines its group ID according to the paging probability of the UE. For example, the BS may broadcast three thresholds of 0.001, 0.01, and 0.1. In this case, the group ID corresponding to the UE with a paging probability less than 0.001 is 0. DEC , the group ID of UEs with a paging probability greater than or equal to 0.001 and less than 0.01 is 1 DEC , the group ID of UEs with a paging probability greater than or equal to 0.01 and less than 0.1 is 2 DEC , and the group ID of UEs with a paging probability greater than or equal to 0.1 is 3 DEC Note that the group ID is in decimal form in this embodiment, and may be changed to binary form.

[0126] Mode 3: Grouping based on UE ID / TMSI and paging probability

[0127] In an embodiment, the number of UEs corresponding to a single interval of paging probability may be huge. In this case, the UEs in the same paging probability interval may be further divided based on the UE identifier (e.g., UE ID or TMSI). That is, the UE may be classified into a certain UE group based on both the UE ID / TMSI and the UE's paging probability.

[0128] In an embodiment, UEs monitoring the same paging occasion are divided into UE groups according to a combination of UE ID and paging probability of the UE. In addition, each of the UE groups has (eg, is configured with or corresponds to) a group ID.

[0129] In an embodiment, the paging probability is divided into two intervals, where interval I1 corresponds to a paging probability less than 20%, and interval I2 corresponds to a paging probability greater than or equal to 20%. In this embodiment, the number of UEs belonging to interval I1 is huge, and the UEs belonging to interval I1 are further divided according to UE ID or TMSI. For example, among the UEs with paging probability in interval I1, UEs whose last bit of the binary UE ID is "0" are grouped in one UE group, and UEs whose last bit of the binary UE ID is "1" are grouped in another UE group. In addition, UEs with paging probability in interval I2 are in another group. That is, in this embodiment, UEs are divided into 3 UE groups based on UE ID and / or paging probability.

[0130] In an embodiment, each UE group has a group ID. In an embodiment, the group ID is a decimal number. In an embodiment, the group ID is indicated by an N-bit binary number, where N is a positive integer.

[0131] In an embodiment, the BS may broadcast group information of grouped UEs through system information. In an embodiment, the BS broadcasts a threshold value that divides the paging probability into multiple intervals, a portion of the UE ID, and the corresponding group ID. For example, the BS may broadcast that when the paging probability of the UE is less than 0.2 and the last bit of the UE ID is "0", the UE is in the UE group with group ID 0; when the paging probability of the UE is less than 0.2 and the last bit of the UE ID is "1", the UE is in the UE group with group ID 0; when the paging probability of the UE is greater than or equal to 0.2 and the last bit of the UE ID is "0", the UE is in the UE group with group ID 1; and when the paging probability of the UE is greater than or equal to 0.2 and the last bit of the UE ID is "1", the UE is in the UE group with group ID 2. In this embodiment, the group ID is expressed in decimal form. In an embodiment, the group ID may be expressed in binary form.

[0132] Mode 4: Grouping based on (multiple) high-level parameters

[0133] In this embodiment, UEs monitoring the same PO are divided into separate UE groups based on (an indication of) at least one higher layer parameter.In an embodiment, the (multiple) higher layer parameters may be (multiple) radio resource control (RRC) parameters.

[0134] In an embodiment, the BS may broadcast group information of grouped UEs through system information. In an embodiment, the BS broadcasts certain bits of the UEID and a group ID of the corresponding UE group.

[0135] In an embodiment, all UEs support UE grouping, that is, all UEs are classified into UE groups.

[0136] In an embodiment, some of the UEs support UE grouping, while some of the UEs do not support UE grouping. For example, UEs with strong coverage may support UE grouping. In other words, when the coverage level of the UE reaches a certain standard (e.g., a threshold), the UE may be grouped (e.g., classified). Alternatively or additionally, UEs operating in certain scenarios (e.g., UEs with reduced capabilities (Redcap)) support UE grouping. Alternatively or additionally, UEs operating in certain frequency ranges (e.g., UEs operating in frequency range 2 (FR2)) support UE grouping.

[0137] Embodiment 2:

[0138] In a single cell, there may be a considerable number of UEs monitoring the same PO. As long as one of the UEs is paged, all UEs monitoring the same PO need to receive the paging message (e.g., PDSCH) scheduled by the DCI encrypted by the P-RNTI, resulting in a reduction in the power efficiency of the UE. In this case, the UEs monitoring the same PO can be divided into separate UE groups, and the paging DCI (e.g., DCI format 1_0 encrypted by the P-RNTI) can be used to indicate the paging operation of the corresponding UE (e.g., (multiple) UE groups). For example, the paging operation can be receiving the corresponding paging message (e.g., PDSCH) or not receiving the paging message. Therefore, the power efficiency of the UE is enhanced.

[0139] Figure 3 FIG. 1 shows a schematic diagram of a PO according to an embodiment of the present disclosure. Figure 3 In the paging DCI, the paging DCI indicates whether a paging message (eg, PDSCH) is received within the same paging cycle (ie, paging operation).

[0140] In an embodiment, paging DCI refers to DCI having at least one bit defined to indicate whether a paging message is received within the same paging cycle (i.e., paging operation). For example, paging DCI may refer to DCI format 1_0 having a cyclic redundancy check (CRC) scrambled by a P-RNTI and including at least one of the following components:

[0141] -Short message field (8 bits)

[0142] - Short message indicator field (2 bits): indicates whether the short message field and the corresponding scheduling information for paging exist,

[0143] -Field for frequency domain resource allocation ( bits, of which is the number of resource blocks in the downlink bandwidth portion and varies depending on the search space in which the DCI format 1_0 is sent): indicates the frequency domain resource allocation for the subsequent paging message,

[0144] - Time domain resource allocation field (4 bits): indicates the time domain resource allocation of the subsequent paging message,

[0145] - Virtual Resource Block to Physical Resource Block (VRB to PRB) Mapping Field: (1 bit): Indicates whether interleaving is used, and

[0146] - Modulation and Coding Scheme (MCS) field (5 bits),

[0147] - Transport Block (TB) Scaling field (2 bits): indicates the scaling factor, and

[0148] - Reserved bit.

[0149] In the present disclosure, the field of the short message may be referred to as the short message field or simply short message. Similarly, the field of the short message indicator may be referred to as the short message indicator field or short message indicator, the field of the MCS may be referred to as the MCS field or MCS, and so on.

[0150] In an embodiment, a subset of reserved bits in a paging DCI is defined as indicating a paging operation of (multiple) corresponding UEs. For example, N bits in the reserved bits in the paging DCI are defined as indicating a paging operation of (multiple) corresponding UEs, where N is an integer greater than or equal to 0 and less than or equal to 6 (i.e., 0≤N≤6). Alternatively or additionally, a subset of reserved bits in a short message field may be defined as indicating a paging operation of (multiple) corresponding UEs. For example, M bits in the reserved bits in a short message field are defined as indicating a paging operation of (multiple) corresponding UEs, where M is an integer greater than or equal to 0 and less than or equal to 5 (i.e., 0≤M≤5). Alternatively or additionally, certain bits or fields in a paging DCI may be redefined as indicating a paging operation of (multiple) corresponding UEs. For example, the MCS field may be interpreted as indicating a paging operation of a corresponding UE. Note that other fields in a paging DCI may also be redefined as indicating a paging operation of (multiple) corresponding UEs. In an embodiment, the field redefined as indicating a paging operation of (multiple) corresponding UEs may be a field associated with the configuration of paging message-related operations. For example, a paging message related operation may be receiving a paging message.

[0151] In an embodiment, the paging operation indicated by (e.g., associated with) the paging DCI may include at least one of the following: receiving a paging message (e.g., PDSCH) in the current paging cycle, not receiving a paging message in the current paging cycle, monitoring PDSCH in the current paging cycle, or not monitoring PDSCH in the current paging cycle. Alternatively or additionally, the paging operation indicated by (e.g., associated with) the paging DCI may include at least one of the following: activating a reference signal, deactivating a reference signal, and updating a reference signal. In an embodiment, the reference signal includes at least one of a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), or a tracking reference signal.

[0152] Hereinafter, the bit(s) or field indicating the paging operation of the UE is referred to as PO reception indicator(s) field or PO reception indicator.

[0153] Mode 1: The PO reception indicator field includes a bitmap.

[0154] In an embodiment, the PO reception indicator field includes (e.g., is) a bitmap, wherein each bit in the bitmap corresponds to a UE group. For example, the PO reception indicator field includes a bitmap having four bits, which are individually associated with four UE groups (e.g., one-to-one mapping). That is, the four bits in the bitmap respectively indicate the paging operations of the UEs in the four UE groups.

[0155] In an embodiment of the PO reception indicator field including a bitmap, a bit "0" indicates that the (multiple) UEs in the corresponding UE group determine whether to receive a paging message (e.g., PDSCH) in the paging cycle according to the paging DCI. In addition, a bit "1" indicates that the (multiple) UEs in the corresponding UE group do not receive a paging message in the paging cycle.

[0156] In an embodiment of the PO reception indicator field including a bitmap, a bit "1" indicates that the (multiple) UEs in the corresponding UE group determine whether to receive a paging message (e.g., PDSCH) in the paging cycle according to the paging DCI. In addition, a bit "0" indicates that the (multiple) UEs in the corresponding UE group do not receive a paging message in the paging cycle.

[0157] In an embodiment, the paging DCI does not carry scheduling information for paging. In this case, the UE ignores the PO reception indicator field indicating the paging operation.

[0158] In an embodiment, the number of bits in the PO reception indicator field is greater than the number of UE groups. In this case, the bits associated with the UE groups are selected in order starting from the MSB (i.e., from left to right) or the LSB (i.e., from right to left). Note that the remaining bits that do not correspond to the UE group can be ignored by the UE.

[0159] In an embodiment, the number of bits in the PO reception indicator field is less than the number of UE groups. In this case, the bits of the PO reception indicator field correspond to the UE groups in ascending order of their group IDs. The (multiple) UEs in the (multiple) UE groups that do not have corresponding bits in the PO reception indicator field operate (e.g., determine whether to receive a paging message based on (e.g., depending on or in response to) a paging DCI) in the absence of the PO reception indicator field.

[0160] In an embodiment where the number of bits of the PO reception indicator field is less than the number of UE groups, the bits of the (multiple) PO reception indicator fields correspond to the UE groups in descending order of the group IDs of the UE groups. The (multiple) UE groups that do not have corresponding bits in the PO reception indicator field operate as if the PO reception indicator field does not exist (e.g., determining whether to receive a paging message based on the paging DCI).

[0161] In an embodiment where the number of bits in the PO reception indicator field is less than the number of UE groups, the relationship between the bits in the PO reception indicator field and the UE groups is determined by an RRC indication. In this embodiment, the (multiple) UE groups that do not have corresponding bits in the PO reception indicator field operate in the absence of the PO reception indicator field (e.g., determining whether to receive a paging message based on a paging DCI).

[0162] In an embodiment where the number of bits of the PO reception indicator field is less than the number of UE groups, a single bit in the PO reception indicator field may correspond to multiple UE groups. For example, if the PO reception indicator field includes three bits and there are four UE groups UEG1, UEG2, UEG3, and UEG4, the first bit of the PO reception indicator field may correspond to UEG1 and UEG4, and the second and third bits of the PO reception indicator field may correspond to UEG2 and UEG3, respectively.

[0163] In an embodiment of the PO reception indicator field including a bitmap, the PO reception indicator field can indicate the paging operation of multiple UE groups at the same time. Therefore, the bit overhead is reduced and the power saving benefit is guaranteed.

[0164] Mode 2: At least one bit in the PO reception indicator field indicates one group ID of a UE group, and a paging operation corresponding to the indicated UE group is predefined.

[0165] In an embodiment, the PO reception indicator field indicates a paging operation of a corresponding UE group by indicating a group ID of the UE group, for example, when the number of UE groups is greater than the number of bits in the PO reception indicator field.

[0166] In an embodiment, all bits in the PO reception indicator field are used to indicate a single group ID. For example, when there are six bits in the PO reception indicator field, a code point "000001" of the PO reception indicator field can indicate a UE group with a group ID "1", and another code point "000100" of the PO reception indicator field can indicate a UE group with a group ID "4".

[0167] In an embodiment, a portion (e.g., a subset, at least one bit) of the bits in the PO reception indicator field is used to indicate a single group ID. For example, a bit with a high weight in the PO reception indicator field of the PO reception indicator field is used to indicate a group ID. Note that the bit with a larger weight may include the MSB and / or at least one bit after the MSB. Alternatively or additionally, the (multiple) remaining bits that are not used to indicate the group ID in the PO reception indicator field are ignored. In an embodiment with eight UE groups, three bits are required to represent a group ID. In this embodiment, there are 6 bits in the PO reception indicator field, and the 3 bits with high weight in the PO reception indicator field (i.e., the MSB and the 2 bits next to the MSB) are used to indicate the group ID. In this case, both code points "000011" and "000000" indicate a UE group with group ID "0" because the 3 bits with low weight are ignored. Similarly, the code point "100000" indicates a UE group with group ID "4".

[0168] In an embodiment, the bits of the PO reception indicator field indicate multiple group IDs of the UE group. For example, when the group ID is represented by 3 bits, the PO reception indicator field with 6 bits can indicate two UE groups. More specifically, the code point "000100" indicates two UE groups whose group IDs are "0" and "4", respectively, via bits "000" and "100".

[0169] In an embodiment, UEs in the UE group indicated by the PO reception indicator field operate as if the paging DCI would not have the PO reception indicator field (e.g., receive paging messages (e.g., PDSCH) based on (depending on or in response to) the paging DCI within the current paging cycle), and UEs in the UE group not indicated by the PO reception indicator field do not receive paging messages (e.g., PDSCH) within the current paging cycle.

[0170] In an embodiment, UEs in the UE group indicated by the PO reception indicator field do not receive a paging message (e.g., PDSCH) during the current paging cycle, and UEs in the UE group not indicated by the PO reception indicator field operate as if the paging DCI would not have a PO reception indicator field (e.g., receive a paging message (e.g., PDSCH) based on (depending on or in response to) the paging DCI during the current paging cycle).

[0171] Mode 3: Multiple bits in the PO Reception Indicator field indicate a subset of UE ID / 5G-S-TMSI, and the paging operation is predefined.

[0172] In an embodiment, the PO reception indicator field indicates the paging operation of (multiple) corresponding UEs by indicating a subset of UE ID (converted into a 10-bit binary number) or TMSI (e.g., 5G-S-TMSI).

[0173] To simplify the description, the following embodiments use UE ID to represent both UE ID and TMSI.

[0174] In an embodiment, the PO reception indicator field indicates the MSB of the binary UE ID. In this embodiment, when the PO reception indicator field is equal to the MSB of its binary UE ID, the UE operates as if the paging DCI would not have the PO reception indicator field (e.g., receives a paging message based on the paging DCI in the current paging cycle). When the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE does not receive paging scheduling information (e.g., PDSCH) in this paging cycle.

[0175] In an embodiment, the PO reception indicator field indicates the MSB of the binary UE ID. In this embodiment, when the PO reception indicator field is equal to the MSB of its binary UE ID, the UE does not receive paging scheduling information (e.g., PDSCH) in this paging cycle. When the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE operates as if the paging DCI would not have the PO reception indicator field (e.g., receives a paging message based on the paging DCI in the current paging cycle).

[0176] In an embodiment, a paging DCI with a PO reception indicator field has an RNTI that is different from (e.g., is scrambled by) an existing paging DCI (e.g., DCI format 1_0 scrambled with P-RNTI in Rel-16). That is, the BS may send a paging DCI with a PO reception indicator field and a paging DCI without a PO reception indicator field, and these types of paging DCI have different RNTIs. In the present disclosure, different RNTIs represent different types of RNTIs (e.g., P-RNTI, cell RNTI, system information RNTI, etc.) and / or RNTIs with different values. For example, a paging DCI with a PO reception indicator field may be scrambled with a P-RNTI, and a paging DCI without a PO reception indicator field (e.g., an existing DCI) may be scrambled with a cell RNTI. In an embodiment, a paging DCI with a PO reception indicator field may be scrambled with a P-RNTI in the form of FFFE. HEXThe value of scrambled, and the paging DCI without the PO reception indicator field (such as the existing DCI) can be scrambled with P-RNTI in FFFD HEX The value of is scrambled.

[0177] In an embodiment, a UE that does not support paging DCI with a PO reception indicator field may receive an existing paging DCI (i.e., without a PO reception indicator field) and operate based on the received paging DCI. When the UE supports paging DCI with a PO reception indicator field, the UE may receive a paging DCI with a PO reception indicator field.

[0178] In an embodiment, a paging DCI including a PO reception indicator field and a paging DCI without a PO reception indicator field are sent on different time-frequency resources. That is, the UE determines whether the received paging DCI has a PO reception indicator field according to the time-frequency resource position configured for the paging DCI.

[0179] In an embodiment, when both the paging DCI of R16 and the new paging DCI are configured at the same time-frequency resource location to the UE, the UE operates based on the existing paging DCI.

[0180] In an embodiment, the UE is configured with a paging DCI including a PO reception indicator field and a paging DCI without a PO reception indicator field at the same time-frequency resource position. In this embodiment, the UE can operate based on the paging DCI without the PO reception indicator field. Alternatively, the UE can operate based on the paging DCI with the PO reception indicator field.

[0181] Embodiment 3:

[0182] In a single cell, there may be many UEs monitoring the same PO. As long as one of the multiple UEs is paged, all UEs monitoring the same PO need to receive the paging message (e.g., PDSCH) scheduled by the corresponding DCI, resulting in low power efficiency. In an embodiment, UEs monitoring the same PO can be grouped (e.g., Example 1), and paging DCI (e.g., DCI format 1_0 scrambled with P-RNTI) can be used to indicate the paging operation of the UE, such as receiving or not receiving PO (e.g., PDCCH and / or PDSCH) or receiving or not receiving paging messages (e.g., PDSCH). Therefore, the power efficiency of the UE is enhanced.

[0183] In the present disclosure, PO refers to paging-related information in a paging cycle (e.g., a PDCCH carrying paging scheduling information (e.g., paging DCI) and / or a PDSCH carrying a paging message). That is, the paging operation "receive PO" may include monitoring a PDCCH monitoring opportunity for paging scheduling information, and determining whether to receive PDSCH based on the received paging scheduling information. Similarly, the paging operation "not receive PO" includes not monitoring PDCCH, not receiving PDCCH, and / or not receiving a paging message (e.g., PDSCH) at a PDSCH monitoring opportunity. Note that these definitions of paging operations may apply to other embodiments of the present disclosure.

[0184] In an embodiment, N bits of the reserved bits in a paging DCI (e.g., DCI format 1_0 scrambled with a P-RNTI (e.g., in Rel-16)) are defined as a PO reception indicator field indicating a paging operation of the corresponding UE, where 0≤N≤6. In an embodiment, M bits of the reserved bits in a short message field of a paging DCI (e.g., DCI format 1_0 scrambled with a P-RNTI (e.g., in Rel-16)) are defined as a PO reception indicator field indicating a paging operation of the corresponding UE, where 0≤M≤5. In an embodiment, certain bits in a paging DCI (e.g., DCI format 1_0 scrambled with a P-RNTI (e.g., in Rel-16)) are redefined as indicating a paging operation of the corresponding UE. For example, certain bits in the MCS field may be interpreted as indicating whether the UE receives a paging message. In an embodiment, a paging DCI with a PO reception indicator field follows an existing format (e.g., DCI format 1_0). In an embodiment, the DCI with the PO reception indicator field has the same DCI size as the existing DCI (eg, DCI format 1_0 scrambled with P-RNTI in Rel-16).

[0185] In an embodiment, the paging operation of the corresponding UE includes receiving and / or not receiving PO (e.g., PDCCH and / or PDSCH) in at least one subsequent paging cycle (e.g., the next paging cycle). In an embodiment, the paging operation of the corresponding UE includes monitoring and / or not monitoring PO (e.g., PDCCH and / or PDSCH) in (multiple) subsequent paging cycles. In an embodiment, the paging operation of the corresponding UE includes receiving and / or not receiving paging messages (e.g., PDSCH) in (multiple) subsequent paging cycles. In an embodiment, the paging operation of the corresponding UE includes receiving and / or not receiving PO (e.g., PDCCH and / or PDSCH) in (multiple) subsequent paging cycles, and receiving and / or not receiving paging messages (e.g., PDSCH) in the current paging cycle. In an embodiment, the paging operation of the corresponding UE includes receiving and / or not receiving paging messages (e.g., PDSCH) in (multiple) subsequent paging cycles, and receiving and / or not receiving paging messages in the current paging cycle.

[0186] In an embodiment, the paging operation of the corresponding UE includes receiving and / or not receiving (multiple) synchronization signal blocks ((multiple) SSBs) in (multiple) subsequent paging cycles. For example, when the paging operation indicated by the PO reception indicator field does not receive PO in the next paging cycle, the UE may not need to receive (multiple) SSBs in the next paging cycle. That is, the paging operation "not receiving PO in the next paging cycle" indicated by the PO reception indicator field may also indicate that the UE does not receive (multiple) SSBs in the next paging cycle (for example, SSBs used for synchronization, automatic gain control (AGC) and time-frequency tracking will not be received).

[0187] Hereinafter, a PO reception indicator field indicating a paging operation of a UE may be referred to as a PO reception indicator.

[0188] In an embodiment, when the paging operation indicated by the PO reception indicator field is not to receive a paging message (PDSCH) in the next paging cycle, it will not receive a portion of the SSB before the PO in the next paging cycle.

[0189] In an embodiment, the paging operation corresponding to the UE includes at least one of activating a reference signal, deactivating a reference signal, or updating a reference signal. In an embodiment, the reference signal includes at least one of an SSB, a CSI-RS, or a tracking reference signal.

[0190] Figure 4 FIG. 4 is a schematic diagram showing PO in a continuous paging cycle according to an embodiment of the present disclosure. Figure 4In the embodiment, the paging DCI (e.g., PO reception indicator field) in the paging cycle PC1 indicates whether to receive a paging operation of the paging DCI (e.g., paging scheduling information) in the subsequent (e.g., next) paging cycle PC2. In the embodiment in which the PO reception indicator field in the paging DCI in the paging cycle PC1 indicates a paging operation of not receiving the paging DCI in the paging cycle PC2, the PO reception indicator field in the paging DCI in the paging cycle PC1 may also (implicitly) indicate that at least one SSB is not received, the at least one SSB preceding the paging DCI and in the paging cycle PC2 (e.g., Figure 4 at least one of the two SSBs shown).

[0191] Figure 5 FIG. 4 is a schematic diagram showing PO in a continuous paging cycle according to an embodiment of the present disclosure. Figure 5 In the paging cycle PC1, the paging DCI (eg, PO reception indicator field) in the paging cycle PC1 indicates whether a paging operation of a paging message (eg, PDSCH) is received in a subsequent (eg, next) paging cycle PC2.

[0192] Relationship between the PO reception indicator field and the UE:

[0193] Mode 1: PO reception indicator field includes a bitmap

[0194] In an embodiment, the PO reception indicator field includes (e.g., is) a bitmap, wherein each bit in the bitmap corresponds to a UE group. For example, the PO reception indicator field includes a bitmap having four bits, which are individually associated with four UE groups (e.g., one-to-one mapping). That is, the four bits in the bitmap respectively indicate the paging operations of the UEs in the four UE groups.

[0195] In an embodiment where the PO reception indicator field includes a bitmap, a bit "0" indicates that the (multiple) UEs in the corresponding UE group do not receive PO (e.g., PDCCH and PDSCH) in the next paging cycle. In addition, a bit "1" indicates that the (multiple) UEs in the corresponding UE group receive PO in the next paging cycle.

[0196] In an embodiment where the PO reception indicator field includes a bitmap, a bit "0" indicates that the (multiple) UEs in the corresponding UE group receive PO (e.g., PDCCH and PDSCH) in the next paging cycle. In addition, a bit "1" indicates that the (multiple) UEs in the corresponding UE group do not receive PO in the next paging cycle.

[0197] In an embodiment where the PO reception indicator field includes a bitmap, a bit "0" indicates that the (multiple) UEs in the corresponding UE group determine whether to receive a paging message (e.g., PDSCH) in the next paging cycle based on the paging DCI in the next paging cycle. In addition, a bit "1" indicates that the (multiple) UEs in the corresponding UE group do not receive a PO in the next paging cycle.

[0198] In an embodiment where the PO reception indicator field includes a bitmap, a bit "1" indicates that the (multiple) UEs in the corresponding UE group determine whether to receive a paging message (e.g., PDSCH) in the next paging cycle based on the paging DCI in the next paging cycle. In addition, a bit "0" indicates that the (multiple) UEs in the corresponding UE group do not receive a paging message in the next paging cycle.

[0199] In an embodiment where the PO reception indicator field includes a bitmap, a bit "0" indicates that the (multiple) UEs in the corresponding UE group determine whether to receive a paging message (e.g., PDSCH) in the current paging cycle and the next paging cycle, respectively, based on the paging DCI in the current paging cycle and the next paging cycle. In addition, a bit "1" indicates that the UEs in the corresponding UE group do not receive a paging message in the current paging cycle and the next paging cycle.

[0200] In an embodiment where the PO reception indicator field includes a bitmap, a bit "1" indicates that the (multiple) UEs in the corresponding UE group determine whether to receive a paging message (e.g., PDSCH) in the current paging cycle and the next paging cycle, respectively, based on the paging DCI in the current paging cycle and the next paging cycle. In addition, a bit "0" indicates that the (multiple) UEs in the corresponding UE group do not receive a paging message in the current paging cycle and the next paging cycle.

[0201] In an embodiment where the PO reception indicator field includes a bitmap, a bit "0" indicates that the (multiple) UEs in the corresponding UE group determine whether to receive a paging message (e.g., PDSCH) in the current paging cycle and the next paging cycle based on the paging DCI in the current paging cycle and the next paging cycle. In addition, a bit "1" indicates that the (multiple) UEs in the corresponding UE group do not receive a paging message in the current paging cycle, and the UE does not receive a PO (e.g., PDCCH and PDSCH) in the next paging cycle.

[0202] In an embodiment where the PO reception indicator field includes a bitmap, a bit "1" indicates that the (multiple) UEs in the corresponding UE group determine whether to receive a paging message (e.g., PDSCH) in the current paging cycle and the next paging cycle based on the paging DCI in the current paging cycle and the next paging cycle. In addition, a bit "0" indicates that the (multiple) UEs in the corresponding UE group do not receive a paging message in the current paging cycle, and the UE does not receive a PO (e.g., PDCCH and PDSCH) in the next paging cycle.

[0203] In an embodiment where the UE is instructed not to receive PO in the next paging, the UE does not receive all SSBs in the next paging cycle.

[0204] In an embodiment where the UE is instructed not to receive a PO in the next paging cycle, the UE does not receive (multiple) SSBs before the PO of the next paging cycle (eg, may not receive SSBs used for synchronization, AGC, and time-frequency tracking).

[0205] In this case, the bits associated with the UE group are selected in order starting from the MSB (ie, from left to right) or the LSB (ie, from right to left). Note that the remaining bits that do not correspond to the UE group are ignored by the UE.

[0206] In an embodiment, the number of bits of the PO reception indicator field is less than the number of UE groups. In this case, the bits of the PO reception indicator field correspond to the UE groups in ascending order of the group IDs of the UE groups. The (multiple) UEs in the (multiple) UE groups for which there is no corresponding bit in the PO reception indicator field operate as if the PO reception indicator field does not exist (e.g., determine whether to receive a paging message based on the paging DCI).

[0207] In an embodiment where the number of bits of the PO reception indicator field is less than the number of UE groups, the bits of the (multiple) PO reception indicator fields correspond to the UE groups in descending order of the group IDs of the UE groups. The (multiple) UE groups that do not have corresponding bits in the PO reception indicator field operate as if the PO reception indicator field does not exist (e.g., determining whether to receive a paging message based on the paging DCI).

[0208] In an embodiment where the number of bits in the PO reception indicator field is less than the number of UE groups, the relationship between the bits in the PO reception indicator field and the UE groups is determined by an RRC indication. In this embodiment, the (multiple) UE groups that do not have corresponding bits in the PO reception indicator field operate as if the PO reception indicator field does not exist (e.g., determining whether to receive a paging message based on the paging DCI).

[0209] In an embodiment where the number of bits of the PO reception indicator field is less than the number of UE groups, a single bit in the PO reception indicator field may correspond to multiple UE groups. For example, if the PO reception indicator field includes three bits and there are four UE groups UEG1, UEG2, UEG3, and UEG4, the first bit of the PO reception indicator field may correspond to UEG1 and UEG4, and the second and third bits of the PO reception indicator field may correspond to UEG2 and UEG3, respectively.

[0210] Mode 2: At least one bit in the PO reception indicator field indicates one group ID of a UE group, and a paging operation corresponding to the indicated UE group is predefined.

[0211] In an embodiment, the PO reception indicator field indicates a paging operation of a corresponding UE group by indicating a group ID of the UE group, for example, when the number of UE groups is greater than the number of bits in the PO reception indicator field.

[0212] In an embodiment, all bits in the PO reception indicator field are used to indicate a single group ID. For example, when there are six bits in the PO reception indicator field, a code point "000001" of the PO reception indicator field may indicate a UE group with a group ID "1", and another code point "000100" of the PO reception indicator field may indicate a UE group with a group ID "7".

[0213] In an embodiment, a portion (e.g., a subset) of the bits in the PO reception indicator field is used to indicate a single group ID. For example, in the PO reception indicator field, the bits with high weight in the PO reception indicator field are used to indicate a group ID. Note that the bits with greater weight may include the MSB and at least one bit after the MSB. Alternatively or additionally, the (multiple) remaining bits in the PO reception indicator field that are not used to indicate the group ID are ignored. In an embodiment with eight UE groups, three bits are required to represent a group ID. In this embodiment, there are 6 bits in the PO reception indicator field, and the 3 bits with high weight in the PO reception indicator field (i.e., the MSB and the 2 bits next to the MSB) are used to indicate the group ID. In this case, both code points "000011" and "000000" indicate a UE group with group ID "0" because the 3 bits with low weight are ignored. Similarly, code point "100000" indicates a UE group with group ID "7".

[0214] In an embodiment, the bits of the PO reception indicator field indicate multiple group IDs of the UE group. For example, when the group ID is represented by 3 bits, the PO reception indicator field with 6 bits can indicate two UE groups. More specifically, the code point "000100" indicates two UE groups whose group IDs are "0" and "7", respectively, via bits "000" and "100".

[0215] In an embodiment, the UEs in the UE group indicated by the PO reception indicator field operate as if the paging DCI would not have the PO reception indicator field (e.g., receive PO in the next paging cycle), and the UEs in the UE group not indicated by the PO reception indicator field do not receive PO in the next paging cycle.

[0216] In an embodiment, the UE in the UE group indicated by the PO reception indicator field does not receive PO in the next paging cycle. In addition, the UE in the UE group not indicated by the PO reception indicator field operates as if the paging DCI does not have a PO reception indicator field (e.g., receives PO in the next paging).

[0217] In an embodiment, UEs in the UE group indicated by the PO reception indicator field operate as if the paging DCI would not have the PO reception indicator field (e.g., receive paging scheduling information in the next paging cycle), and UEs in the UE group not indicated by the PO reception indicator field will not receive paging scheduling information in the next paging cycle.

[0218] In an embodiment, the UEs in the UE group indicated by the PO reception indicator field do not receive the paging scheduling information in the next paging cycle. In addition, the UEs in the UE group not indicated by the PO reception indicator field operate as if the paging DCI does not have a PO reception indicator field (e.g., receive the paging scheduling information in the next paging cycle).

[0219] In an embodiment, UEs in the UE group indicated by the PO reception indicator field operate as if the paging DCI would not have the PO reception indicator field (e.g., receive paging scheduling information in the current paging cycle and the next paging), and UEs in the UE group not indicated by the PO reception indicator field do not receive paging scheduling information in the current paging cycle and the next paging cycle.

[0220] In an embodiment, the UEs in the UE group indicated by the PO reception indicator field do not receive paging scheduling information in the current paging cycle and the next paging cycle. In addition, the UEs in the UE group not indicated by the PO reception indicator field operate as if the paging DCI does not have a PO reception indicator field (for example, receive paging scheduling information in the current paging cycle and the next paging cycle).

[0221] In an embodiment, UEs in the UE group indicated by the PO reception indicator field operate as if the paging DCI would not have the PO reception indicator field (e.g., receive paging scheduling information in the current paging cycle and receive PO in the next paging), and UEs in the UE group not indicated by the PO reception indicator field do not receive paging scheduling information in the current paging cycle and do not receive PO in the next paging cycle.

[0222] In an embodiment, the UEs in the UE group indicated by the PO reception indicator field do not receive paging scheduling information in the current paging cycle and do not receive PO in the next paging cycle. In addition, the UEs in the UE group not indicated by the PO reception indicator field operate as if the paging DCI does not have a PO reception indicator field (e.g., receive paging scheduling information in the current paging cycle and receive PO in the next paging cycle).

[0223] Mode 3: Multiple bits in the PO Reception Indicator field indicate a subset of UE ID / 5G-S-TMSI, and the paging operation is predefined.

[0224] In an embodiment, the PO reception indicator field indicates the paging operation of (multiple) corresponding UEs by indicating a subset of UE ID (converted into a 10-bit binary number) or TMSI (e.g., 5G-S-TMSI).

[0225] To simplify the description, the following embodiments use UE ID to represent both UE ID and TMSI.

[0226] In an embodiment, the PO reception indicator field indicates the MSB of the binary UE ID. In this embodiment, when the PO reception indicator field is equal to the MSB of its binary UE ID, the UE operates as if the paging DCI would not have the PO reception indicator field (e.g., receives a paging message in the next paging cycle based on the paging DCI in the next paging cycle). When the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE does not receive a paging message (e.g., PDSCH) in the next paging cycle.

[0227] In an embodiment where the PO reception indicator field indicates the MSB of a binary UE ID, when the PO reception indicator field is equal to the MSB of its binary UE ID, the UE does not receive a paging message (e.g., PDSCH) in the next paging cycle. In this embodiment, when the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE operates as if the paging DCI would not have the PO reception indicator field (e.g., receives a paging message in the next paging cycle based on the paging DCI in the next paging cycle).

[0228] In an embodiment, the PO reception indicator field indicates the LSB of the binary UE ID. In this embodiment, when the PO reception indicator field is equal to the LSB of its binary UE ID, the UE operates as if the paging DCI would not have the PO reception indicator field (e.g., receives a paging message in the next paging cycle based on the paging DCI in the next paging cycle). In this embodiment, when the PO reception indicator field is not equal to the LSB of the binary UE ID, the UE does not receive a paging message (e.g., PDSCH) in the next paging cycle.

[0229] In an embodiment where the PO reception indicator field indicates the LSB of a binary UE ID, the UE does not receive a paging message (e.g., PDSCH) in the next paging cycle when the PO reception indicator field is equal to the LSB of its binary UE ID. In this embodiment, when the PO reception indicator field is not equal to the LSB of the binary UE ID, the UE operates as if the paging DCI would not have the PO reception indicator field (e.g., receives a paging message in the next paging cycle based on the paging DCI in the next paging cycle).

[0230] In an embodiment where the PO reception indicator field indicates the MSB of the binary UE ID, the UE receives the PO in the next paging cycle when the PO reception indicator field is equal to the MSB of its binary UE ID. In this embodiment, when the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE does not receive the PO in the next paging cycle.

[0231] In an embodiment where the PO reception indicator field indicates the MSB of a binary UE ID, the UE does not receive a PO in the next paging cycle when the PO reception indicator field is equal to the MSB of its binary UE ID. In this embodiment, when the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE receives a PO in the next paging cycle.

[0232] In an embodiment where the PO reception indicator field indicates the LSB of the binary UE ID, the UE receives the PO in the next paging cycle when the PO reception indicator field is equal to the LSB of its binary UE ID. In this embodiment, when the PO reception indicator field is not equal to the LSB of the binary UE ID, the UE does not receive the PO in the next paging cycle.

[0233] In an embodiment where the PO reception indicator field indicates the LSB of the binary UE ID, the UE does not receive the PO in the next paging cycle when the PO reception indicator field is equal to the LSB of its binary UE ID. In this embodiment, when the PO reception indicator field is not equal to the LSB of the binary UE ID, the UE receives the PO in the next paging cycle.

[0234] In an embodiment where the PO reception indicator field indicates the MSB of the binary UE ID, when the PO reception indicator field is equal to the MSB of its binary UE ID, the UE operates as if the paging DCI would not have the PO reception indicator field (e.g., receives a paging message in the current paging cycle and receives a PO in the next paging cycle). In this embodiment, when the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE does not receive a paging message in the current paging cycle and does not receive a PO in the next paging cycle.

[0235] In an embodiment where the PO reception indicator field indicates the MSB of the binary UE ID, when the PO reception indicator field is equal to the MSB of its binary UE ID, the UE does not receive a paging message in the current paging cycle and does not receive a PO in the next paging cycle. In this embodiment, when the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE operates as if the paging DCI would not have a PO reception indicator field (e.g., receives a paging message in the current paging cycle and receives a PO in the next paging cycle).

[0236] In an embodiment where the PO reception indicator field indicates the LSB of the binary UE ID, when the PO reception indicator field is equal to the LSB of its binary UE ID, the UE operates as if the paging DCI would not have the PO reception indicator field (e.g., receives a paging message in the current paging cycle and receives a PO in the next paging cycle). In this embodiment, when the PO reception indicator field is not equal to the LSB of the binary UE ID, the UE does not receive a paging message in the current paging cycle and does not receive a PO in the next paging cycle.

[0237] In an embodiment where the PO reception indicator field indicates the LSB of the binary UE ID, when the PO reception indicator field is equal to the LSB of its binary UE ID, the UE does not receive a paging message in the current paging cycle and does not receive a PO in the next paging cycle. In this embodiment, when the PO reception indicator field is not equal to the LSB of the binary UE ID, the UE operates as if the paging DCI would not have a PO reception indicator field (e.g., receives a paging message in the current paging cycle and receives a PO in the next paging cycle). In an embodiment where the PO reception indicator field indicates the MSB of the binary UE ID, when the PO reception indicator field is equal to the MSB of its binary UE ID, the UE operates as if the paging DCI would not have a PO reception indicator field (e.g., receives a paging message in the current paging cycle and receives paging scheduling information in the next paging cycle). In this embodiment, when the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE does not receive a paging message in the current paging cycle and does not receive paging scheduling information in the next paging cycle.

[0238] In an embodiment where the PO reception indicator field indicates the MSB of a binary UE ID, when the PO reception indicator field is equal to the MSB of its binary UE ID, the UE does not receive a paging message in the current paging cycle and does not receive paging scheduling information in the next paging cycle. In this embodiment, when the PO reception indicator field is not equal to the MSB of the binary UE ID, the UE operates as if the paging DCI would not have a PO reception indicator field (e.g., receives a paging message in the current paging cycle and receives PO paging scheduling information in the next paging cycle).

[0239] In an embodiment where the PO reception indicator field indicates the LSB of the binary UE ID, when the PO reception indicator field is equal to the LSB of its binary UE ID, the UE operates as if the paging DCI would not have the PO reception indicator field (e.g., receives a paging message in the current paging cycle and receives paging scheduling information in the next paging cycle). In this embodiment, when the PO reception indicator field is not equal to the LSB of the binary UE ID, the UE does not receive a paging message in the current paging cycle and does not receive paging scheduling information in the next paging cycle.

[0240] In an embodiment where the PO reception indicator field indicates the LSB of a binary UE ID, when the PO reception indicator field is equal to the LSB of its binary UE ID, the UE does not receive a paging message in the current paging cycle and does not receive paging scheduling information in the next paging cycle. In this embodiment, when the PO reception indicator field is not equal to the LSB of the binary UE ID, the UE operates as if the paging DCI would not have a PO reception indicator field (e.g., receives a paging message in the current paging cycle and receives PO paging scheduling information in the next paging cycle).

[0241] In an embodiment, a paging DCI with a PO reception indicator field has an RNTI different from (e.g., scrambled with) an existing paging DCI. That is, the BS may send a paging DCI with a PO reception indicator field and a paging DCI without a PO reception indicator field, and these types of paging DCI have different RNTIs. In the present disclosure, different RNTIs represent different types of RNTIs (e.g., P-RNTI, cell RNTI, system information RNTI, etc.) and / or RNTIs with different values. For example, a paging DCI with a PO reception indicator field may be scrambled with a P-RNTI, and a paging DCI without a PO reception indicator field (e.g., an existing DCI) may be scrambled with a cell RNTI. In an embodiment, a paging DCI with a PO reception indicator field may be scrambled with a P-RNTI in the form of FFFE. HEX The value of scrambled, and the paging DCI without the PO reception indicator field (such as the existing DCI) can be scrambled with P-RNTI in FFFD HEX The value of is scrambled.

[0242] In an embodiment, a UE that does not support paging DCI with a PO reception indicator field may receive an existing paging DCI (i.e., without a PO reception indicator field) and operate based on the received paging DCI. When the UE supports paging DCI with a PO reception indicator field, the UE may receive a paging DCI with a PO reception indicator field.

[0243] In an embodiment, a paging DCI including a PO reception indicator field and a paging DCI without a PO reception indicator field are sent on different time-frequency resources. That is, the UE determines whether the received paging DCI has a PO reception indicator field according to the time-frequency resource position configured for the paging DCI.

[0244] In an embodiment, when both the paging DCI of R16 and the new paging DCI are configured at the same time-frequency resource location to the UE, the UE operates based on the existing paging DCI.

[0245] In an embodiment, the UE is configured with a paging DCI including a PO reception indicator field and a paging DCI without a PO reception indicator field at the same time-frequency resource position. In this embodiment, the UE can operate based on the paging DCI without the PO reception indicator field. Alternatively, the UE can operate based on the paging DCI with the PO reception indicator field.

[0246] Embodiment 4:

[0247] In a single cell, a considerable number of UEs may monitor the same paging occasion. As long as one of the UEs is paged, all UEs monitoring the same paging occasion need to receive the paging message (e.g., PDSCH) scheduled by the paging DCI, resulting in a decrease in the power efficiency of the UE. In this embodiment, a group common paging DCI is introduced to indicate the paging operation of the UE group to improve the power efficiency of the UE.

[0248] In an embodiment, the group common paging DCI includes at least one of the following bit fields: a short message indicator field, a short message field, a (multiple) PO reception indicator field (used to indicate the paging operation of (multiple) UE groups), or a reference signal indicator field. For example, when the group common paging DCI includes a field for a short message, the UE can receive a short message without receiving a paging message / PO in the next paging cycle. In an embodiment, these bit fields may not always exist or exist at the same time.

[0249] Figure 6 FIG. 1 shows a schematic diagram of a group common paging DCI according to an embodiment of the present disclosure. Figure 6 In the embodiment, the order of the bit fields is: common bit field, bit field of the first UE group, bit field of the second UE group, and so on. In an embodiment, the common bit field includes multiple bit fields (i.e., multiple function indicators). For example, the common bit field includes a short message indicator field, a short message field, and the like. In an embodiment, the bit field corresponding to each UE group in the UE group includes multiple bit fields (i.e., multiple function indicators). In an embodiment, the short message indicator field is included in the common bit field. In an embodiment, the reference signal indicator field is included in the common bit field. In an embodiment, both the short message indicator field and the short message field are included in the common bit field.

[0250] Figure 7 FIG. 1 shows a schematic diagram of a group common paging DCI according to an embodiment of the present disclosure. Figure 7 The group common paging DCI does not have Figure 6The common bit fields shown in the figure are in the order of: the bit field of the first UE group, the bit field of the second UE group, etc. In an embodiment, the bit field corresponding to each UE group in the UE group includes multiple bit fields (i.e., multiple function indicators). In an embodiment, the position of the bit field for each UE group is indicated by high-layer signaling.

[0251] In an embodiment, the short message indicator field includes one bit, wherein bit "0" indicates "only PO reception information exists in DCI", and bit "1" indicates "both PO reception information and short message exist in DO".

[0252] In an embodiment, the short message indicator field includes one bit, wherein bit "1" indicates "only PO reception information exists in the DCI", and bit "0" indicates "both PO reception information and short message exist in the DCI".

[0253] In an embodiment, the bit field of the short message indicator includes two bits, and the meaning of the bit field of the short message indicator is shown in the following table:

[0254]

[0255]

[0256] In an embodiment, the short message field comprises eight bits, which is the same as the short message field defined in Rel-16.

[0257] In an embodiment, the short message field includes three bits, and the short message field is the same as the first three bits (eg, the MSB and two bits next to the MSB) in the short message field defined in Rel-16.

[0258] In an embodiment, the PO reception indicator field is a bitmap whose size is equal to the number of UE groups (monitoring the same paging occasion). In an embodiment, the PO reception indicator field indicates whether the UEs in the corresponding UE group receive or do not receive a paging message (PDSCH) in the current paging cycle. In an embodiment, the PO reception indicator field indicates whether the UEs in the corresponding UE group receive or do not receive PO (e.g., PDCCH and PDSCH) in the current paging cycle. In an embodiment, the PO reception indicator field indicates whether the UEs in the corresponding UE group receive or do not receive PO (e.g., PDCCH and PDSCH) in (multiple) subsequent paging cycles (e.g., the next paging cycle). In an embodiment, the PO reception indicator field indicates whether the UEs in the corresponding UE group receive or do not receive a paging message (e.g., PDSCH) in (multiple) subsequent paging cycles (e.g., the next paging cycle). In an embodiment, the PO reception indicator field indicates whether the UEs in the corresponding UE group monitor or do not monitor PO (e.g., PDCCH and PDSCH) in the current paging cycle. In an embodiment, the PO reception indicator field indicates that the UEs in the corresponding UE group monitor or do not monitor PO (PDCCH and PDSCH) in (multiple) subsequent paging cycles (e.g., the next paging cycle). In an embodiment, the PO reception indicator field indicates that the UEs in the corresponding UE group monitor or do not monitor paging messages (e.g., PDSCH) in (multiple) subsequent paging cycles (e.g., the next paging cycle).

[0259] In an embodiment, when the UE is instructed not to receive PO in the current paging cycle, the UE stops receiving paging scheduling information and stops monitoring (multiple) PDCCH opportunities for paging in the current paging cycle. In an embodiment, when the UE is instructed not to receive PO in the next paging cycle, the UE does not receive all SSBs in the next paging cycle. In an embodiment, when the UE is instructed not to receive PO in the next paging cycle, the UE does not receive (multiple) SSBs before the PO of the next paging cycle (e.g., SSBs for synchronization, AGC, and time-frequency tracking).

[0260] In an embodiment, the bit field of the PO reception indicator includes 1 bit, and the meaning of the PO reception indicator bit field is as shown in the following table:

[0261]

[0262] In an embodiment, the meanings of the bits "0" and "1" in the above table are swapped.

[0263] In an embodiment, the reference signal indicator field indicates at least one of activating a reference signal, deactivating a reference signal, and updating a reference signal. In an embodiment, the reference signal includes at least one of an SSB, a CSI-RS, or a tracking reference signal.

[0264] In an embodiment, group common paging DCI is defined as a new DCI format.

[0265] In an embodiment, the BS may send a group common DCI and another format of DCI (e.g., DCI format 1_0 scrambled with P-RNTI). In this embodiment, the group common paging DCI and another format of DCI have the same time domain resources. In an embodiment, the group paging DCI is located before another format of DCI (e.g., DCI format 1_0 scrambled with P-RNTI) in the time domain.

[0266] In an embodiment, the group common paging DCI may be consistent in size with the paging DCI of the existing DCI format. For example, the group common paging DCI has the same size as DCI format 1_0. Alternatively, the group paging DCI has the same size as DCI not scrambled with the cell RNTI.

[0267] Embodiment 5:

[0268] In a single cell, there may be many UEs monitoring the same paging occasion. As long as one of the UEs is paged, all UEs monitoring the same paging occasion need to receive the paging message (e.g., PDSCH) scheduled by the paging DCI, resulting in low power efficiency. In this embodiment, the BS (e.g., gNB) can send multiple DCIs on the time-frequency resources configured in the UE search space and CORESET, where each DCI indicates the paging operation of a single UE group.

[0269] In an embodiment, the DCI is a DCI format 1_0 scrambled with a P-RNTI. In an embodiment, a reserved bit in the DCI format 1_0 scrambled with a P-RNTI is defined to indicate that the UE receives or does not receive a paging message (e.g., PDSCH) in the current paging cycle. In an embodiment, a reserved bit in the DCI format 1_0 scrambled with a P-RNTI is defined to indicate that the UE monitors or does not monitor a paging message (e.g., PDSCH) in the current paging cycle. In an embodiment, a reserved bit in the short message field is defined to indicate that the UE receives or does not receive a paging message (e.g., PDSCH) in the current paging cycle.

[0270] In an embodiment in which a reserved bit is defined in DCI format 1_0 scrambled with P-RNTI to indicate whether a UE receives / monitors or does not receive / monitor a paging message in a current paging cycle, bit "0" indicates that the UEs in the corresponding UE group determine whether to receive / monitor a paging message (e.g., PDSCH) in the current paging cycle based on the paging DCI, and bit "1" indicates that the UEs in the corresponding UE group do not receive a paging message in the current paging cycle.

[0271] In an embodiment in which a reserved bit is defined in DCI format 1_0 scrambled with P-RNTI to indicate whether a UE receives / monitors or does not receive / monitor a paging message in a current paging cycle, bit "1" indicates that the UEs in the corresponding UE group determine whether to receive / monitor a paging message (e.g., PDSCH) in the current paging cycle based on the paging DCI, and bit "0" indicates that the UEs in the corresponding UE group do not receive a paging message in the current paging cycle.

[0272] In an embodiment, when the paging DCI does not carry paging scheduling information, the PO reception indicator field indicating whether the UE receives a paging message (eg, PDSCH) in the paging cycle is ignored.

[0273] In an embodiment, multiple DCIs configured in the same PO are scrambled with the group ID of the corresponding UE group, respectively. In an embodiment, the relationship between (multiple) UE groups and (multiple) DCIs is predefined. In an embodiment, the relationship between UE groups and DCIs is configured by a higher layer (signaling).

[0274] In embodiment 5, the operation of each UE group can be differentiated without increasing decoding complexity. In this embodiment, UEs without paging scheduling requirements may not receive PDSCH. Therefore, the power consumption of UEs is reduced.

[0275] Embodiment 6:

[0276] In a single cell, there may be a large number of UEs monitoring the same paging occasion. As long as one of the UEs is paged, all UEs monitoring the same paging occasion need to receive the paging message (PDSCH) scheduled by the DCI scrambled with the P-RNTI, resulting in low power efficiency. In this embodiment, the paging DCI corresponding to different UE groups (e.g., DCI format 1_0 scrambled with P-RNTI) is separately scrambled with different group identifiers (e.g., RNTI) of the corresponding UE groups. In this case, the UE can only successfully decode the paging DCI scrambled with the group identifier of its UE group. Therefore, UEs in one UE group with a group identifier are prevented from receiving paging messages configured for a UE group with another group identifier, and the power efficiency of the UE is improved.

[0277] In an embodiment, UEs monitoring the same PO are divided into separate UE groups. In an embodiment, each UE group in the UE groups has its own group ID.

[0278] In the present disclosure, the group identifier used to scramble the paging DCI may be an RNTI or a group RNTI.

[0279] In an embodiment, various RNTIs may be used as group identifiers for scrambled paging DCI (e.g., DCI format 1_0 scrambled with P-RNTI). In an embodiment, the RNTI may be used to scramble the CRC of the paging DCI. In an embodiment, each of the RNTIs has a total of 16 bits. In an embodiment, the RNTI is used for the last 16 bits of the CRC in the corresponding paging DCI.

[0280] In the embodiment, there are N G RNTI, where N G is a positive integer. In an embodiment, N G =N is equal to the number of UE groups. In an embodiment, one RNTI corresponds to one UE group. In an embodiment, N G Less than the number of UE groups. In an embodiment, one RNTI may correspond to multiple UE groups. In an embodiment, there are N c group common identifiers (eg, group common RNTIs), where N c is a positive integer. In an embodiment, a single group-common RNTI corresponds to multiple UE groups.

[0281] In an embodiment, each of the UEs is assigned a group RNTI corresponding to its own UE group. Alternatively or additionally, each of the UEs may be assigned at least one group common RNTI. In an embodiment, all UEs monitoring the same paging occasion may share the same group common RNTI (e.g., N c =1). In an embodiment, several UE groups may share the same group common RNTI (eg, N c Greater than 1). In an embodiment, the UE decodes the received paging DCI using its group RNTI and group common RNTI in the monitored PO (e.g., PDCCH). In an embodiment, the UE is only assigned the group RNTI of the corresponding UE group. In an embodiment, in its PDCCH monitoring opportunity, the UE uses the assigned group RNTI to decode the received paging DCI. In an embodiment, when the UE fails to decode the paging DCI, the UE decodes the received paging DCI as a legacy UE.

[0282] In an embodiment, the group RNTI corresponding to each UE group in the UE group is related to (e.g., associated with) the corresponding group ID. In an embodiment, the group RNTI corresponding to the UE group is the group ID of the UE group in hexadecimal form. In an embodiment, the group RNTI corresponding to each UE group in the UE group is determined (e.g., generated) based on the corresponding group ID. For example, the group RNTI of the UE group can be a hexadecimal representation of the corresponding group ID and FFF3 HEXIn an embodiment, the group common RNTI is one of the reserved RNTIs excluding those configured for the group RNTI. For example, the range of reserved RNTIs is from FFF3 HEX to FFFD HEX In an embodiment, the group common identifier is selected from 0001, 0002, 0003, 0004, 0005, 0006, 0007, 0008, 0009, 010, 011, 012, 013, 014, 015, 016, 017, 018, 019, 020, 021, 0 HEX to FFF2 HEX selected from the range.

[0283] In an embodiment, the group common RNTI for all UEs monitoring the same paging occasion is FFFD HEX In addition, the group RNTI corresponding to the UE group with group ID 0 is FFF3 HEX Similarly, the group RNTI corresponding to the UE group with group ID 3 is FFF6 HEX In this embodiment, when monitoring PO (eg, PDCCH) in a paging cycle, a UE with group ID 0 uses its group identifier (ie, FFF3 HEX ) and the public identifier (i.e. FFFD HEX ) to decode the received paging DCI.

[0284] In an embodiment, the group common RNTI of the UE group with group ID value 1 or 2 is FFFA HEX , and the group common RNTI for the UE group with group ID value 3 or 4 is FFFB HEX In addition, the group RNTI corresponding to the UE group with a group ID value of 1 is 0001 HEX , and the group RNTI corresponding to the UE group with group ID value 2 is 0002 HEX , etc. In this case, when monitoring PO (eg, PDCCH) in a paging cycle, UEs with a group ID of 1 use 0001 and 0002, respectively. HEX and FFFA HEX To decode the received paging DCI. If the paging DCI is successfully decoded, the UE operates based on the received paging DCI (eg, receives a paging message based on the received paging DCI). If the paging DCI is not successfully decoded, the UE does not receive a paging message in the paging cycle.

[0285] In an embodiment, the group common RNTI is selected from the reserved RNTIs (eg, the range of reserved RNTIs is from FFF3 HEX to FFFD HEX). In this embodiment, the group RNTI corresponding to each UE group in the UE group may be related to the UE ID and / or TMSI. Note that in this embodiment, the UEs may be grouped based on the UE ID and / or 5G-5-TMSI. More specifically, the group RNTI corresponding to each UE group in the UE group may be a part (e.g., a subset) of the UE ID and / or 5G-S-TMSI. For example, UEs whose last two digits of the UE ID are "00", "01", "10", or "11" are respectively assigned to four group RNTIs. The group RNTI corresponding to the UE whose last two digits of the UE ID are "01" is 0001. HEX , and the group RNTI corresponding to the UE whose last two digits of UE ID are "02" is 0002 HEX , etc. Note that more bits of the UE ID can be used as the group RNTI.

[0286] In an embodiment, both the group common RNTI and the group RNTI consist of a bit string having a specific pattern.

[0287] In an embodiment, the BS broadcasts a group common RNTI and a group RNTI to corresponding UEs.

[0288] In an embodiment, a group common RNTI is configured for UEs having the same UE ID. In an embodiment, one group RNTI corresponds to at least one UE group.

[0289] Embodiment 7:

[0290] In a single cell, there may be a considerable number of UEs monitoring the same PO. As long as one of the UEs is paged, all UEs monitoring the same PO need to receive the paging message (e.g., PDSCH) scheduled by the paging DCI, resulting in the UE possibly wasting power on receiving irrelevant paging messages. In this embodiment, the demodulation reference signal (DMRS) of the PDCCH and / or PDSCH is scrambled, and only the UE (e.g., a group of UEs) that successfully receives the DMRS can decode the PDCCH and / or PDSCH. Therefore, the UE avoids wasting power on processing the PDCCH and / or PDSCH that is not configured for it.

[0291] In an embodiment, UEs monitoring the same PO are grouped into UE groups (e.g., Embodiment 1). In this embodiment, each UE group in the UE group corresponds to a group ID. In an embodiment, the group ID is a decimal number. Alternatively or additionally, the group ID is indicated by a binary number having N bits, where N is a positive integer.

[0292] In an embodiment, the DMRS of the PDCCH may be scrambled with the group ID of the corresponding UE group. For example, the group ID is used as part of the pseudo-random sequence generator of the DMRS. In an embodiment, the DMRS of the PDCCH may be scrambled with the UE ID or TMSI of the corresponding UE. For example, the UE ID and / or TMSI are used as part of the pseudo-random sequence generator of the DMRS.

[0293] In an embodiment, the DRMS ​​sequence rl(m) of OFDM symbol l is defined as:

[0294]

[0295] The pseudo-random sequence c(i) is defined by a Gold sequence of length 31.

[0296] In an embodiment, the pseudo-random sequence generator is initialized as:

[0297]

[0298] in Indicates the number of symbols in a time slot, is the number of time slots in a frame, N ID is the group ID of the UE, and mod is a modulo function to obtain the remainder. ID is the value of a decimal number corresponding to a portion (e.g., a subset) of the bits in the UE ID (the UE ID is represented in binary mode) or a portion (e.g., a subset) of the bits in the 5G-S-TMSI. For example, N ID Can be the last 5 digits of the UE ID.

[0299] In an embodiment, the pseudo-random sequence generator is initialized as:

[0300]

[0301] where c init is the initialization seed, N ID Indicated by the higher layer parameter pdcch-DMRS-ScramblingID (if any) or equal to the cell ID (otherwise). ID _1 is the group ID of the UE. In an embodiment, N ID N is the value of a decimal number corresponding to a portion (e.g., a subset) of the bits in the UE ID (the UEID is represented in binary mode) or a portion (e.g., a subset) of the bits in the TMSI. ID Can be the last 5 digits of the UE ID.

[0302] In an embodiment, the DMRS of the PDSCH may be scrambled in a similar manner to the scrambled PDCCH. For example, the group ID of the corresponding UE group may be used as part of the pseudo-random sequence generator of the DMRS. Alternatively or additionally, the UE ID and / or TMSI of the corresponding UE may be used as part of the pseudo-random sequence generator of the DMRS.

[0303] Figure 8 A flowchart of a process according to an embodiment of the present disclosure is shown. Figure 8 The process shown here includes the following steps:

[0304] Step 800: Receive paging indication information associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups from a wireless network node.

[0305] Step 802: Perform a paging operation based on the paging indication information.

[0306] exist Figure 8 In the present invention, a wireless terminal receives paging indication information (e.g., paging DCI with a PO reception indicator field) from a wireless network node (e.g., a BS or a gNB), wherein the paging indication information is associated with a paging operation of at least one wireless terminal group in a plurality of wireless terminal groups. Based on (e.g., depending on, in response to) the received paging indication information, the wireless terminal performs a paging operation.

[0307] In an embodiment, the wireless terminal is classified into one of the multiple wireless terminal groups based on at least one of the following: a subset of the wireless terminal's identity, a paging probability of the wireless terminal, or at least one high-level signaling. In this embodiment, the wireless terminal's identity is a UE ID or a TMSI (e.g., 5G-S-TMSI). For details on dividing the wireless terminal into separate wireless terminal groups, reference may be made to Embodiment 1, and for the sake of brevity, the contents disclosed therein are not described herein.

[0308] In an embodiment, the paging operation includes at least one of the following: monitoring paging occasions, not monitoring paging occasions, receiving at least one of paging scheduling information, paging messages, or reference signals from a radio network node, or not receiving at least one of paging scheduling information, paging messages, or reference signals from a radio network node. In this embodiment, the reference signal includes at least one of the following: SSB, CSI-RS, or tracking reference signal. For details related to the paging operation, reference may be made to any one of Embodiments 2 to 7, and for the sake of brevity, the contents disclosed therein are not described herein.

[0309] In an embodiment, at least one of the paging occasion, the paging scheduling information, or the paging message is in the first paging cycle in which the paging indication information is configured. That is, the paging indication information and at least one of the paging occasion, the paging scheduling information, or the paging message are in the same paging cycle. For details related to the paging operation in the first paging cycle (e.g., the current paging cycle) in which the paging indication information is configured, reference may be made to any one of Embodiments 2 to 7, and for the sake of brevity, the contents disclosed therein are not described herein.

[0310] In an embodiment, the paging indication information is configured in a first paging cycle, and at least one of the paging opportunity, the paging scheduling information, the paging message, and the reference signal is in at least one second paging cycle after the first paging cycle. In other words, after the paging cycle in which the paging indication information is configured, at least one of the paging opportunity, the paging scheduling information, the paging message, or the reference signal is in a subsequent paging cycle. For details related to the paging operation in at least one second paging cycle (e.g., the next paging cycle) after the first paging cycle (e.g., the current paging cycle) of the paging indication information, reference may be made to Embodiments 3 and / or 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0311] In an embodiment, the paging indication information includes at least one of the following: DCI, DMRS, time domain resources of a PDCCH carrying paging scheduling information, or frequency domain resources of a PDCCH carrying paging scheduling information. For details related to the components included in the paging indication information, reference may be made to embodiments 2 to 5, and for the sake of brevity, the contents disclosed therein are not described herein.

[0312] In an embodiment, the DCI includes a first DCI, and the first DCI includes a paging occasion reception indicator field. The paging occasion reception indicator field indicates a paging operation. For example, the paging occasion reception indicator field includes at least one of the following: at least one reserved bit in the reserved bits in the first DCI, at least one reserved bit in the reserved bits of the short message field in the first DCI, or a field associated with the configuration of a paging message related operation. For details related to the first DCI, reference may be made to Embodiments 2 and / or 3, and for the sake of brevity, the contents disclosed therein are not described here.

[0313] In an embodiment, the downlink control information also includes second downlink control information (e.g., DCI format 1_0). In this embodiment, the first DCI and the second DCI may be scrambled with different RNTIs and / or have different time-frequency resources. Alternatively or additionally, both the first DCI and the second DCI have a bit field for distinguishing the first DCI from the second DCI. For example, the bit field may indicate one of the first DCI or the second DCI. That is, based on the bit field, the UE is able to determine whether the received DCI is the first DCI or the second DCI. In this embodiment, the first DCI and the second DCI are different in at least one of the following (e.g., distinguished by it): RNTI used for scrambling, time-frequency resources, or a bit field indicating one of the first DCI or the second DCI. For details related to the second DCI, reference may be made to Embodiments 2 and / or 3, and for the sake of brevity, the contents disclosed therein are not described here.

[0314] In an embodiment, the second DCI does not have a paging occasion reception indicator field (eg, a DCI in an existing format). For details related to the second DCI, reference may be made to Embodiments 2 and / or 3, and for the sake of brevity, the contents disclosed therein are not described here.

[0315] In an embodiment, the DCI includes a third DCI having a new DCI format. For example, the third DCI may include at least one of the following: a short message field, at least one paging occasion reception indicator field (indicating a paging operation of at least one wireless terminal group in a plurality of wireless terminal groups), a short message indicator field (indicating the presence or absence of at least one of the short message field or at least one paging occasion reception indicator field), or a reference signal indicator field (indicating a reference signal operation). For details related to the third DCI, reference may be made to Embodiment 4, and for the sake of brevity, the contents disclosed therein are not described herein.

[0316] In an embodiment, the third DCI is configured for at least one wireless terminal group among the plurality of wireless terminal groups. For details related to the third DCI, reference may be made to Embodiment 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0317] In an embodiment, the DCI also includes a fourth DCI (e.g., in an existing format). In this embodiment, the third DCI and the fourth DCI may be scrambled with different RNTIs, and / or have different time-frequency resources, and / or have different formats. That is, the third DCI and the fourth DCI may be different (e.g., distinguished by) in at least one of the following: RNTI used for scrambling, time-frequency resources, or format. For details related to the fourth DCI, reference may be made to Example 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0318] In an embodiment, the fourth DCI does not have a paging occasion reception indicator field. For details related to the fourth DCI, reference may be made to Embodiment 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0319] In an embodiment, the paging occasion reception indicator field includes a bitmap, wherein each bit in the bitmap is associated with one of the plurality of wireless terminal groups. For details related to the paging occasion reception indicator field including the bitmap, reference may be made to any one of Embodiments 2 to 4, and for the sake of brevity, the contents disclosed therein are not described herein.

[0320] In an embodiment, the paging occasion reception indicator field includes at least one ID of at least one wireless terminal group associated with the paging indication information. For example, the identifier is one of the following: group ID, UE ID, a subset of UE ID, TMSI (e.g., 5G-S-TMSI), or a subset of TMSI. For details related to the ID of at least one wireless terminal group, reference may be made to any one of Embodiments 2 to 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0321] In an embodiment, the paging indication information includes at least one of the time domain resources or frequency domain resources (e.g., search space) of the PDCCH. In this embodiment, the wireless terminal monitors the physical downlink control channel based on at least one of the time domain resources or frequency domain resources. For details related to the paging indication information including at least one of the time domain resources or frequency domain resources of the PDCCH, reference may be made to Example 5, and for the sake of brevity, the contents disclosed therein are not described here.

[0322] In an embodiment, the DCI is associated with the first wireless terminal group. For example, the CRC of the DCI is scrambled with the RNTI. For details related to the DCI scrambled with the RNTI, reference may be made to Embodiment 6, and for the sake of brevity, the contents disclosed therein are not described here.

[0323] In an embodiment, the RNTI includes at least one of the following: a group common RNTI configured for a first wireless terminal group and at least one second wireless terminal group in a plurality of wireless terminal groups, or a group RNTI configured for the first wireless terminal group. For details related to the RNTI used for scrambling DCI, reference may be made to Example 6, and for the sake of brevity, the contents disclosed therein are not described here.

[0324] In an embodiment, the DMRS includes at least one of the DMRS of the PDCCH or the DMRS of the PDSCH. In this embodiment, the identifier of at least one wireless terminal group associated with the paging indication information is used for at least one of the following: scrambling the demodulation reference signal, or determining the initialization seed of the demodulation reference signal. For example, the identifier is one of the following: group ID, UE ID, a subset of UE ID, TMSI (e.g., 5G-S-TMSI), or a subset of TMSI. For details related to the DMRS in the paging indication information, please refer to Example 7, and for the sake of brevity, the disclosed contents are not described here.

[0325] Fig. 9 FIG. 1 is a flowchart showing a process according to an embodiment of the present disclosure. Fig. 9 The process shown here includes the following steps:

[0326] Step 900: Send paging indication information associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups to at least one wireless terminal.

[0327] Step 902: Send paging related information based on the paging indication information.

[0328] More specifically, the radio network node sends paging indication information (e.g., paging DCI with a PO reception indicator field) to at least one wireless terminal (e.g., UE). The paging indication information is associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups (e.g., UE groups). Next, the radio network node sends paging related information based on (e.g., depending on, in response to) the paging indication information.

[0329] In an embodiment, each of the at least one wireless terminal is classified into one of the multiple wireless terminal groups based on at least one of the following: a subset of the identification of each of the at least one wireless terminal, a paging probability of each of the at least one wireless terminal, or at least one high-level signaling. In this embodiment, the identification of the wireless terminal is a UE ID or a TMSI (e.g., 5G-S-TMSI). For details on dividing the wireless terminals into separate wireless terminal groups, reference may be made to Embodiment 1, and for the sake of brevity, the contents disclosed therein are not described here.

[0330] In an embodiment, the paging operation includes at least one of the following: monitoring paging occasions, not monitoring paging occasions, receiving at least one of paging scheduling information, paging messages, or reference signals from a radio network node, or not receiving at least one of paging scheduling information, paging messages, or reference signals from a radio network node. In this embodiment, the reference signal includes at least one of the following: SSB, CSI-RS, or tracking reference signal. For details related to the paging operation, reference may be made to any one of Embodiments 2 to 7, and for the sake of brevity, the contents disclosed therein are not described herein.

[0331] In an embodiment, at least one of the paging occasion, the paging scheduling information, or the paging message is in the first paging cycle in which the paging indication information is configured. That is, the paging indication information and at least one of the paging occasion, the paging scheduling information, or the paging message are in the same paging cycle. For details related to the paging operation in the first paging cycle (e.g., the current paging cycle) in which the paging indication information is configured, reference may be made to any one of Embodiments 2 to 7, and for the sake of brevity, the contents disclosed therein are not described herein.

[0332] In an embodiment, the paging indication information is configured in a first paging cycle, and at least one of the paging opportunity, the paging scheduling information, the paging message, and the reference signal is in at least one second paging cycle after the first paging cycle. In other words, after the paging cycle in which the paging indication information is configured, at least one of the paging opportunity, the paging scheduling information, the paging message, or the reference signal is in a subsequent paging cycle. For details related to the paging operation in at least one second paging cycle (e.g., the next paging cycle) after the first paging cycle (e.g., the current paging cycle) of the paging indication information, reference may be made to Embodiments 3 and / or 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0333] In an embodiment, the paging indication information includes at least one of the following: DCI, DMRS, time domain resources of a PDCCH carrying paging scheduling information, or frequency domain resources of a PDCCH carrying paging scheduling information. For details related to the components included in the paging indication information, reference may be made to embodiments 2 to 5, and for the sake of brevity, the contents disclosed therein are not described herein.

[0334] In an embodiment, the DCI includes a first DCI, and the first DCI includes a paging occasion reception indicator field. The paging occasion reception indicator field indicates a paging operation. For example, the paging occasion reception indicator field includes at least one of the following: at least one reserved bit in the reserved bits in the first DCI, at least one reserved bit in the reserved bits of the short message field in the first DCI, or a field associated with the configuration of a paging message related operation. For details related to the first DCI, reference may be made to Embodiments 2 and / or 3, and for the sake of brevity, the contents disclosed therein are not described here.

[0335] In an embodiment, the downlink control information also includes second downlink control information (e.g., DCI format 1_0). In this embodiment, the first DCI and the second DCI may be scrambled with different RNTIs and / or have different time-frequency resources. Alternatively or additionally, both the first DCI and the second DCI have a bit field for distinguishing the first DCI from the second DCI. For example, the bit field may indicate one of the first DCI or the second DCI. That is, based on the bit field, the UE can determine whether the received DCI is the first DCI or the second DCI. In this embodiment, the first DCI and the second DCI are different in at least one of the following (e.g., distinguished by it): RNTI used for scrambling, time-frequency resources, or a bit field indicating one of the first DCI or the second DCI. For details related to the second DCI, reference may be made to Embodiments 2 and / or 3, and for the sake of brevity, the contents disclosed therein are not described here.

[0336] In an embodiment, the second DCI does not have a paging occasion reception indicator field (eg, a DCI in an existing format). For details related to the second DCI, reference may be made to Embodiments 2 and / or 3, and for the sake of brevity, the contents disclosed therein are not described here.

[0337] In an embodiment, the DCI includes a third DCI having a new DCI format. For example, the third DCI may include at least one of the following: a short message field, at least one paging occasion reception indicator field (indicating a paging operation of at least one wireless terminal group in a plurality of wireless terminal groups), a short message indicator field (indicating the presence or absence of at least one of the short message field or at least one paging occasion reception indicator field), or a reference signal indicator field (indicating a reference signal operation). For details related to the third DCI, reference may be made to Embodiment 4, and for the sake of brevity, the contents disclosed therein are not described herein.

[0338] In an embodiment, the third DCI is configured for at least one wireless terminal group among the plurality of wireless terminal groups. For details related to the third DCI, reference may be made to Embodiment 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0339] In an embodiment, the DCI also includes a fourth DCI (e.g., in an existing format). In this embodiment, the third DCI and the fourth DCI may be scrambled with different RNTIs, and / or have different time-frequency resources, and / or have different formats. That is, the third DCI and the fourth DCI may be different (e.g., distinguished by) in at least one of the following: RNTI used for scrambling, time-frequency resources, or format. For details related to the fourth DCI, reference may be made to Example 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0340] In an embodiment, the fourth DCI does not have a paging occasion reception indicator field. For details related to the fourth DCI, reference may be made to Embodiment 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0341] In an embodiment, the paging occasion reception indicator field includes a bitmap, wherein each bit in the bitmap is associated with one of the plurality of wireless terminal groups. For details related to the paging occasion reception indicator field including the bitmap, reference may be made to any one of Embodiments 2 to 4, and for the sake of brevity, the contents disclosed therein are not described herein.

[0342] In an embodiment, the paging occasion reception indicator field includes at least one ID of at least one wireless terminal group associated with the paging indication information. For example, the identifier is one of the following: group ID, UE ID, a subset of UE ID, TMSI (e.g., 5G-S-TMSI), or a subset of TMSI. For details related to the ID of at least one wireless terminal group, reference may be made to any one of Embodiments 2 to 4, and for the sake of brevity, the contents disclosed therein are not described here.

[0343] In an embodiment, the paging indication information includes at least one of the time domain resources or frequency domain resources (e.g., search space) of the PDCCH. In this embodiment, the wireless terminal monitors the physical downlink control channel based on at least one of the time domain resources or frequency domain resources. For details related to the paging indication information including at least one of the time domain resources or frequency domain resources of the PDCCH, reference may be made to Example 5, and for the sake of brevity, the contents disclosed therein are not described here.

[0344] In an embodiment, the DCI is associated with the first wireless terminal group. For example, the CRC of the DCI is scrambled with the RNTI. For details related to the DCI scrambled with the RNTI, reference may be made to Embodiment 6, and for the sake of brevity, the contents disclosed therein are not described here.

[0345] In an embodiment, the RNTI includes at least one of the following: a group common RNTI configured for a first wireless terminal group and at least one second wireless terminal group in a plurality of wireless terminal groups, or a group RNTI configured for the first wireless terminal group. For details related to the RNTI used for scrambling DCI, reference may be made to Example 6, and for the sake of brevity, the contents disclosed therein are not described here.

[0346] In an embodiment, the DMRS includes at least one of the DMRS of the PDCCH or the DMRS of the PDSCH. In this embodiment, the identifier of at least one wireless terminal group associated with the paging indication information is used for at least one of the following: scrambling the demodulation reference signal, or determining the initialization seed of the demodulation reference signal. For example, the identifier is one of the following: group ID, UE ID, a subset of UE ID, TMSI (e.g., 5G-S-TMSI), or a subset of TMSI. For details related to the DMRS in the paging indication information, please refer to Example 7, and for the sake of brevity, the disclosed contents are not described here.

[0347] Although various embodiments of the present disclosure have been described above, it should be understood that they are presented by way of example only and not by way of limitation. Similarly, various figures may depict example architectures or configurations, which are provided to enable those of ordinary skill in the art to understand the exemplary features and functions of the present disclosure. However, such persons will understand that the present disclosure is not limited to the illustrated example architectures or configurations, but may be implemented using various alternative architectures and configurations. In addition, as will be appreciated by those of ordinary skill in the art, one or more features of an embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments.

[0348] It should also be understood that any reference to an element using names such as "first," "second," etc., herein generally does not limit the number or order of those elements. Rather, these names may be used herein as a convenient means of distinguishing between two or more elements or instances of elements. Thus, reference to a first element and a second element does not mean that only two elements can be used, or that the first element must precede the second element in some manner.

[0349] In addition, those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols, etc., that may be referenced in the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0350] The skilled person will further understand that any of the various illustrative logical blocks, units, processors, means, circuits, methods, and functions described with respect to the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of both), firmware, various forms of programs or design codes combined with instructions (for convenience, referred to herein as "software" or "software units"), or any combination of these technologies.

[0351] In order to clearly illustrate the interchangeability of hardware, firmware and software, the functions of various illustrative components, blocks, units, circuits and steps have been generally described above. Whether such functions are implemented in the form of hardware, firmware or software, or a combination of these technologies, depends on the particular application and the design restrictions on the entire system. The technician can implement the described functions in various ways for each particular application, but such implementation decisions will not lead to deviations from the scope of this disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc. can be configured to perform one or more of the functions described herein. The term "configured to" or "configured for" used herein with respect to a particular operation or function refers to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed and / or arranged to perform a particular operation or function.

[0352] In addition, the skilled person will understand that the various illustrative logic blocks, units, devices, components and circuits described herein can be implemented in or performed by an integrated circuit (IC), which can 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, or any combination thereof. The logic blocks, units and circuits may further include antennas and / or transceivers to communicate with various components within a network or within a device. The general-purpose processor can be a microprocessor, but in an alternative, the processor can be any conventional processor, controller or state machine. The processor can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other suitable configuration to perform the functions described herein. If implemented in software, the function can be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium.

[0353] Computer-readable media include both computer storage media and communication media, which include any media that can enable a computer program or code to be transferred from one place to another. Storage media can be any available media that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other media that can be used to store desired program code in the form of instructions or data structures and can be accessed by a computer.

[0354] In this document, the term "unit" as used herein refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. In addition, for the purpose of discussion, various units are described as discrete units; however, two or more units can be combined to form a single unit, which performs associated functions according to the embodiments of the present disclosure, which will be apparent to those skilled in the art.

[0355] In addition, in embodiments of the present disclosure, memory or other storage, as well as communication components, may be used. It should be understood that, for the sake of clarity, the above description has described embodiments of the present disclosure with reference to different functional units and processors. However, it is clear that any suitable distribution of functions may be used between different functional units, processing logic elements, or domains without detracting from the present disclosure. For example, functions described as being performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Therefore, reference to a specific functional unit is only a reference to an appropriate means for providing the functionality, rather than indicating a strict logical or physical structure or organization.

[0356] Various modifications to the embodiments described in this disclosure will be apparent to those skilled in the art, and the general principles defined in this disclosure may be applied to other embodiments without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but is to be accorded the broadest scope consistent with the novel features and principles disclosed herein, as recorded in the appended claims.

Claims

1. A wireless communication method for use in a wireless terminal, the wireless communication method comprising: receiving paging indication information from a radio network node, the paging indication information being associated with a paging operation for at least one wireless terminal group among a plurality of wireless terminal groups, and Execute the paging operation based on the paging indication information; The paging indication information includes downlink control information DCI, wherein the downlink control information includes at least one of the third downlink control information or the fourth downlink control information, wherein the third downlink control information and the fourth downlink control information are different in at least one of the following: being scrambled with different radio network temporary identifiers, or having different formats, and The fourth downlink control information does not have a paging occasion reception indicator field.

2. The wireless communication method according to claim 1, wherein the wireless terminal is classified into one of the plurality of wireless terminal groups based on at least one of the following: a subset of the identities of the wireless terminals, or At least one higher-level signaling, The identifier of the wireless terminal is a user equipment identifier or a temporary mobile subscription identifier.

3. The wireless communication method according to claim 1, wherein the third downlink control information comprises at least one of the following: at least one paging occasion reception indicator field indicating the paging operation of at least one wireless terminal group among the plurality of wireless terminal groups, or The reference signal indicator field indicates whether to activate or deactivate a reference signal. 4 . The wireless communication method according to claim 3 , wherein the paging occasion reception indicator field indicates whether the wireless terminal in the corresponding wireless terminal group monitors or does not monitor the paging occasion in the current paging cycle.

5. The wireless communication method according to any one of claims 1 to 3, wherein the paging occasion reception indicator field comprises a bitmap, wherein each bit in the bitmap is associated with one of the plurality of wireless terminal groups. The method according to claim 5 , wherein a size of the bitmap is equal to the number of the plurality of wireless terminal groups.

7. The method according to claim 1, wherein the fourth downlink control information indicates a paging operation of the corresponding wireless terminal, and N bits of the reserved bits in the fourth downlink control information indicate the paging operation of the corresponding wireless terminal, wherein N is an integer greater than or equal to 0 and less than or equal to 6. 8 . The method according to claim 7 , wherein the paging operation indicated by the fourth downlink control information comprises at least one of: activating a reference signal, or deactivating a reference signal.

9. The method of claim 3 or 8, wherein the reference signal comprises a tracking reference signal. 10 . The method according to claim 1 , wherein the third downlink control information is located before the DCI format 1_0 scrambled with the P-RNTI in the time domain.

11. A wireless communication method for use in a wireless network node, the wireless communication method comprising: sending paging indication information to at least one wireless terminal, the paging indication information being associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups, and Sending paging related information based on the paging indication information; The paging indication information includes downlink control information DCI, wherein the downlink control information includes at least one of the third downlink control information or the fourth downlink control information, wherein the third downlink control information and the fourth downlink control information are different in at least one of the following: being scrambled with different radio network temporary identifiers, or having different formats, and The fourth downlink control information does not have a paging occasion reception indicator field.

12. The wireless communication method according to claim 11, wherein each of the at least one wireless terminal is classified into one of the plurality of wireless terminal groups based on at least one of the following: a subset of the identification of each wireless terminal of the at least one wireless terminal, or At least one higher-level signaling, The identifier of each wireless terminal in the at least one wireless terminal is a user equipment identifier or a temporary mobile subscription identifier.

13. The wireless communication method according to claim 11, wherein the third downlink control information comprises at least one of the following: at least one paging occasion reception indicator field indicating the paging operation, or The reference signal indicator field indicates whether to activate or deactivate a reference signal. 14 . The wireless communication method according to claim 13 , wherein the paging occasion reception indicator field indicates whether the wireless terminal in the corresponding wireless terminal group monitors or does not monitor the paging occasion in the current paging cycle.

15. The wireless communication method according to any one of claims 11 to 13, wherein the paging occasion reception indicator field comprises a bitmap, wherein each bit in the bitmap is associated with one of the plurality of wireless terminal groups. 16 . The wireless communication method according to claim 15 , wherein a size of the bitmap is equal to the number of the plurality of wireless terminal groups.

17. A method according to claim 11, wherein the fourth downlink control information indicates a paging operation of the corresponding wireless terminal, and N bits of the reserved bits in the fourth downlink control information indicate the paging operation of the corresponding wireless terminal, wherein N is an integer greater than or equal to 0 and less than or equal to 6.

18. The method according to claim 17, wherein the paging operation indicated by the fourth downlink control information comprises at least one of: activating a reference signal, or deactivating a reference signal.

19. The method of claim 13 or 18, wherein the reference signal comprises a tracking reference signal. 20 . The method according to claim 11 , wherein the third downlink control information is located before the DCI format 1_0 scrambled with the P-RNTI in the time domain.

21. A wireless terminal, comprising: a communication unit configured to receive paging indication information from a radio network node, the paging indication information being associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups, and A processor, configured to perform the paging operation based on the paging indication information; The paging indication information includes downlink control information DCI, wherein the downlink control information includes at least one of the third downlink control information or the fourth downlink control information, wherein the third downlink control information and the fourth downlink control information are different in at least one of the following: being scrambled with different radio network temporary identifiers, or having different formats, and wherein the fourth downlink control information does not have a paging occasion reception indicator field, The processor is further configured to execute the wireless communication method according to any one of claims 2 to 10.

22. A wireless network node, comprising: The communication unit is configured as follows: sending paging indication information to at least one wireless terminal, the paging indication information being associated with a paging operation of at least one wireless terminal group among a plurality of wireless terminal groups, and Sending paging related information based on the paging indication information, The paging indication information includes downlink control information DCI, wherein the downlink control information includes at least one of the third downlink control information or the fourth downlink control information, wherein the third downlink control information and the fourth downlink control information are different in at least one of the following: being scrambled with different radio network temporary identifiers, or having different formats, and wherein the fourth downlink control information does not have a paging occasion reception indicator field, and A processor configured to execute the wireless communication method according to any one of claims 12 to 20.

23. A computer program product, comprising computer-readable program medium codes stored thereon, wherein when the codes are executed by a processor, the processor is caused to implement the wireless communication method according to any one of claims 1 to 20.

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