Scheduling and sending system information

Abstract

A method of wireless communication includes making, by a wireless device, a first determination that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and in an inactive state having a second cycle duration value less than or equal to the threshold; making a second determination of a first paging frame value to be used within a paging time window using a first equation based on the first determination, where the first equation is based on the second cycle duration; and performing paging operations in accordance with the first determination and / or the second determination.

Description

[Technical Field]

[0001] Technical Field This patent document relates generally to wireless communications. [Background technology]

[0002] background Mobile communication technologies are moving the world toward an increasingly connected and networked society. The rapid growth of mobile communications and technological advances are driving demands for capacity and connectivity. Other aspects, such as energy consumption, device cost, spectral efficiency, and latency, are also important to meet the needs of various communication scenarios. Various techniques, including new methods, are being discussed to provide higher quality of service, longer battery life, and improved performance. Summary of the Invention [Means for solving the problem]

[0003] overview This patent document describes, among other things, techniques for paging operations in wireless networks.

[0004] In one exemplary aspect, a method for wirelessly receiving data is disclosed that includes: making, by a wireless device, a first determination that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and an inactive state having a second cycle duration value less than or equal to a threshold; making, based on the first determination, a second determination of a first paging frame value to be used within a paging time window using a first formula, where the first formula is based on the second cycle duration; and performing paging operations according to the first determination and / or the second determination.

[0005] In another example aspect, a method for wireless communication includes: making, by a wireless device, a first determination that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and in an inactive state having a second cycle duration value less than or equal to the threshold; making, based on the first determination, a second determination of a first paging opportunity value to be used outside of a paging time window using a first formula, the first formula being based on (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not preconfigured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is preconfigured for the wireless device; and performing paging operations in accordance with the first determination and / or the second determination.

[0006] In another example aspect, a method for wireless communication includes making, by a network device, a first determination that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and in an inactive state having a second cycle duration value less than or equal to the threshold; making a second determination of a first paging frame value to be used within a paging time window using a first formula based on the first determination, the first formula being based on the second cycle duration; and performing paging operations in accordance with the first determination and / or the second determination.

[0007] In another example aspect, a method for wireless communication includes: making, by a wireless device, a first determination that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and in an inactive state having a second cycle duration value less than or equal to the threshold; making, based on the first determination, a second determination of a first paging opportunity value to be used outside of a paging time window using a first formula, the first formula being based on (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not preconfigured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is preconfigured for the wireless device; and performing paging operations in accordance with the first determination and / or the second determination.

[0008] In another example aspect, a method for wireless communication includes making a first determination, by a wireless device in a wireless network, that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value that is above a threshold, and that extended discontinuous receive operation is not configured for an inactive state for the wireless device; and performing a paging operation using a paging opportunity using a first formula based on the minimum of (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not configured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is pre-configured for the wireless device.

[0009] In another example aspect, a method for wireless communication includes making a first determination, by a network device in a wireless network, that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value that is above a threshold, and that extended discontinuous receive operation is not configured for an inactive state for the wireless device; and performing a paging operation using a paging opportunity using a first formula based on the minimum of (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not configured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is pre-configured for the wireless device.

[0010] In another exemplary aspect, a communications apparatus is disclosed, the apparatus including a processor configured to perform the method described above.

[0011] In yet another exemplary aspect, a computer program storage medium is disclosed that includes code stored thereon that, when executed by a processor, causes the processor to perform a described method.

[0012] These and other aspects are described herein. [Brief explanation of the drawings]

[0013] [Figure 1A] 1 is a flowchart diagram of a wireless communication method in accordance with the present technology. [Figure 1B] 1 is a flowchart diagram of a wireless communication method in accordance with the present technology. [Figure 2A] 1 is a flowchart diagram of a wireless communication method in accordance with the present technology. [Figure 2B] 1 is a flowchart diagram of a wireless communication method in accordance with the present technology. [Figure 3A] 1 is a flowchart diagram of a wireless communication method in accordance with the present technology. [Figure 3B] 1 is a flowchart diagram of a wireless communication method in accordance with the present technology. [Figure 4A] FIG. 1 illustrates an exemplary timeline for paging operations. [Figure 4B] FIG. 10 illustrates another exemplary timeline for paging operations. [Figure 5] FIG. 1 illustrates an example of a wireless communication system in which techniques according to one or more embodiments of the present technology may be applied. [Figure 6] 1 is a block diagram representation of a portion of a wireless station in accordance with one or more embodiments of the present technology. DETAILED DESCRIPTION OF THE INVENTION

[0014] Detailed Description Section headings are used in this document only to improve readability and do not limit the scope of the disclosed embodiments and techniques within each section to that section alone. Some features are described using the example of a 5G wireless protocol. However, the applicability of the disclosed techniques is not limited to only 5G wireless systems.

[0015] The following abbreviations are used in this document: 5G - Fifth Generation CN - Core Network DRX - Discontinuous Reception eDRX - Enhanced Discontinuous Reception H-SFN - Hyper System Frame Number LTE - Long Term Evolution (standard) NAS - Network Access Layer NR-New Radio (Standard) PCCH - Paging Control Channel PH - Paging Hyperframe PF - Paging Frame PO - Paging Occasion PTW - Paging Time Window RAN - Radio Access Network RAN Paging Cycle - A UE-specific cycle for RAN initiated paging Redcap - Reduced functionality RRC - Radio Resource Control SFN - System Frame Number TMSI - Temporary Mobile Subscriber Identifier UE - User Equipment 1. Brief Introduction Recently, support for certain types of low-cost and low-complexity or reduced-function devices has been introduced on top of 5G NR systems to support wireless access by devices with limited computational and / or battery resources, such as industrial sensors, smart wearables, video surveillance cameras, etc. These and other wireless devices capable of wireless transmission or wireless reception are referred to in this document as user equipment (UE).

[0016] One mechanism provided for efficient use of resources in such devices is the use of discontinuous reception, which allows / expects the UE to power down its receive circuitry to conserve power and wireless bandwidth. Through coordination between the network device and the UE regarding when and for how long the UE is configured for discontinuous reception (DRX), this mechanism allows the UE to operate in a low power mode without missing reception of data from the network device.

[0017] A common understanding of the UE's DRX configuration may be based on several timing parameters that may be preconfigured for the UE during various operating states in the wireless network. In a 5G NR system, a UE may operate in different RRC states in which various UE capabilities are activated or deactivated in a predefined manner. A UE in RRC INACTIVE may be configured with eDRX cycles for both the RRC IDLE state and the RRC INACTIVE state. The eDRX cycles for the two RRC states may be different. If the eDRX cycle for either of the two RRC states is greater than 10.24 seconds, a so-called PTW (Paging Time Window) mechanism is applied to paging operations.

[0018] This document provides a method that can be used for transmitting and monitoring paging messages when the UE is in RRC INACTIVE state and is configured with eDRX for both RRC IDLE and RRC INACTIVE states.

[0019] 2. New Wireless Paging Mechanism In an NR system, a UE is expected to monitor paging according to a DRX cycle and a PCCH configuration. The UE determines time domain resources (paging frames and paging occasions within the paging frames) according to the DRX cycle and the paging configuration. The UE monitors paging messages on paging occasions. FIG. 4A shows an example of a timeline of paging operations. As shown in FIG. 4A, the horizontal axis represents time. A paging frame offset defines the time from the start of the DRX cycle to the start of the paging frame, during which paging occasions may occur for the UE. The paging frame may end before or at the end of the DRX cycle.

[0020] The paging frame (PF) is determined according to the following formula: The subframe number (SFN) for PF is (SFN+PF_offset)modT=(TdivN)*(UE_IDmodN) is determined by.

[0021] The index (i_s) of the paging occasion (PO) is i_s=floor(UE_ID / N)modNs ("mod" is the modulo function) is determined by.

[0022] where: T: UE DRX cycle (T is determined by the shortest of the UE-specific DRX value, if configured by RRC and / or higher layers, and the default DRX value broadcasted in the system information. In RRC_IDLE state, if UE-specific DRX is not configured by higher layers, the default value applies).

[0023] The total number of paging frames in N:T. Ns: Number of paging opportunities for the PF.

[0024] PF_offset: The offset used for PF determination configured by the network.

[0025] UE_ID:5G-S-TMSImod1024. The 5G-S-TMSI is a 48-bit string as defined in 3GGP Technical Specification TS23.501. The 5G-S-TMSI should be interpreted as a binary number with the left-most bit representing the most significant bit in the above formula.

[0026] eDRX and PTW mechanism example In the 3GPP LTE specification, if the eDRX cycle for RRC IDLE is greater than 10.24 s, the PTW mechanism is used. The value of the eDRX cycle may be the number of hypersystem frames. A hypersystem frame includes 1024 system frames. A hypersystem frame number (H-SFN) may be transmitted in the system information of a cell to indicate the current hypersystem frame number.

[0027] In the PTW mechanism, the UE monitors paging occasions within a Paging Time Window (PTW) when the eDRX cycle length is greater than 10.24 seconds. The PTW is UE-specific and is determined by the paging hyperframe (PH), the starting position within the PH (PTW_start), and the ending position of the PTW (PTW_end) or the length of the PTW.

[0028] More specifically, a UE in RRC INACTIVE monitors paging within the PTW for paging messages initiated by the CN (CN paging) and the base station (RAN paging) according to the following rules:

[0029] Within the PTW, the PF (Paging Frame) and PO (Paging Occasion) are determined by setting T in the PF / PO formula as the shortest value of the default DRX cycle, the UE-specific DRX cycle (UE-specific paging cycle), and the RAN paging cycle. The RAN paging cycle is configured by the base station and is used by the UE to monitor RAN paging when the UE is in RRC INACTIVE state.

[0030] Figure 4B shows an example timeline of the PTW mechanism. As depicted in Figure 4B, a paging time window defines a time interval within a paging hyperframe, defined by a PTW start time, during which paging can occur. The paging hyperframe is within the time interval defined by the extended DRX cycle, and the PTW is within the paging hyperframe.

[0031] 3. Exemplary Embodiment 1 In NR, a UE can be configured with eDRX for both the RRC IDLE and RRC INACTIVE states. The UE can be configured with the RAN paging cycle when transitioning to the RRC INACTIVE state. A UE in the RRC INACTIVE state applies the eDRX configuration to both the RRC IDLE and RRC INACTIVE states to monitor both CN and RAN paging.

[0032] If the eDRX cycle for RRC IDLE is greater than 10.24 s (or the PTW mechanism is applied) and the eDRX cycle for RRC INACTIVE is less than or equal to 10.24 s (or the PTW mechanism is not applied), the following actions may be performed.

[0033] The PTW mechanism is applied according to the eDRX cycle for the RRC IDLE state.

[0034] Within the PTW, the UE monitors for paging according to one of the following rules: Example Rule 1: The paging frame (PF) is determined by setting T in the formula for PF calculation as the shortest value of the default DRX cycle, the UE-specific DRX cycle if configured, and the eDRX cycle for RRC INACTIVE.

[0035] The paging occasion is determined by setting T in the formula for PO calculation as the shortest value of the default DRX cycle and the UE-specific DRX cycle, if configured, or the default DRX cycle if the UE-specific DRX cycle is not configured. Note that the UE can always monitor the correct paging occasion. However, when the RRC state does not match between the UE and what the network considers to be the UE's RRC state, for example, when the UE is in RRC INACTIVE but the network considers the UE to be in RRC IDLE, paging messages may be lost in such cases.

[0036] Example Rule 2: The paging frame (PF) is determined by setting T in the formula for PF calculation as the shortest value of the default DRX cycle, the UE-specific DRX cycle if configured, and the eDRX cycle for RRC INACTIVE.

[0037] The paging occasion is determined by setting T in the formula for PO calculation as the shortest value of the default DRX cycle, the UE-specific DRX cycle if configured, and the eDRX cycle for RRC INACTIVE.

[0038] Outside the PTW, the UE monitors paging according to the following rules: The PF is determined by setting T as the eDRX cycle for RRC INACTIVE in the formula for PF calculation.

[0039] -PO is determined by setting T as the shortest value of the default DRX cycle and the UE-specific DRX cycle, if configured.

[0040] Here, the default DRX cycle may be configured in the cell system information. The UE-specific DRX cycle is configured in the UE by the CN node. The UE-specific DRX cycle may be indicated from the CN to the RAN node. The eDRX cycle for RRC INACTIVE is configured in the UE via an RRC message or a higher layer message (e.g., a NAS message between the CN and the UE).

[0041] In some embodiments, the eDRX cycle for RRC INACTIVE and the RAN paging cycle are two separate information elements in the RRC release message.

[0042] Correspondingly, network nodes including RAN nodes (base stations) and CN (core network) send paging messages according to the same rules.

[0043] In the method provided in this document, if the eDRX cycle for RRC IDLE is greater than 10.24 s or the PTW mechanism is applied, and the eDRX cycle for RRC INACTIVE is less than or equal to 10.24 s or the PTW mechanism is not applied, the UE monitors paging within the PTW according to an appropriate PF / PO decision rule that takes into account the following aspects:

[0044] 1. The UE needs to monitor RAN paging according to the eDRX cycle for RRC INACTIVE, rather than the RAN paging cycle (as in legacy mechanisms), which is assumed to be shorter than the eDRX cycle for RRC INACTIVE.

[0045] 2. The UE shall monitor CN paging according to the default DRX cycle and the UE-specific DRX cycle if configured.

[0046] 3. The principle is adhered to that the UE should monitor both CN and RAN paging when in RRC INACTIVE state.

[0047] 4. To avoid paging reception failure when the UE's RRC state is inconsistent between the UE and the network, the PO is determined by the DRX cycle for CN paging, e.g., Rule 2.

[0048] 4. Exemplary Embodiment 2 In another exemplary embodiment, the UE may be configured with eDRX for the RRC IDLE state and a RAN paging cycle, but not with an eDRX cycle for RRC INACTIVE.

[0049] If the eDRX cycle for RRC IDLE is greater than 10.24 s (or the PTW mechanism is applied), the following actions may be performed.

[0050] The PTW mechanism is applied according to the eDRX cycle for the RRC IDLE state.

[0051] Outside the PTW, the UE monitors paging according to the following rules: -PF is determined by setting T as the RRC paging cycle in the formula for PF calculation.

[0052] -PO is determined by setting T as the shortest value of the default DRX cycle and the UE-specific DRX cycle, if configured.

[0053] Within the PTW, the UE monitors paging according to the following rules: The paging frame (PF) is determined by setting T as the shortest value of the default DRX cycle, the UE-specific DRX cycle if configured, and the RAN paging cycle in the formula for PF calculation.

[0054] The paging occasion is determined in the formula for PO calculation by setting T as the shortest value of the default DRX cycle and the UE-specific DRX cycle if configured, or the default DRX cycle if no UE-specific DRX cycle is configured.

[0055] The following solution based on the above-described techniques may be preferably implemented by some embodiments.

[0056] For example, to implement embodiment 1 described above in section 3, the following solution may be used.

[0057] 1. A method of wireless communication (e.g., method 100 depicted in FIG. 1A ), comprising: making, by a wireless device, a first determination that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and in an inactive state having a second cycle duration value less than or equal to a threshold (102); making, based on the first determination, a second determination of a first paging frame value to be used within a paging time window using a first equation (104), where the first equation is based on the second cycle duration (104); and performing paging operations in accordance with the first determination and / or the second determination (106).

[0058] 2. The method of Solution 1, wherein the first equation defines the first paging frame value based on the minimum of (a) the second cycle duration, (b) a default discontinuous reception cycle duration in the wireless network, and (c) a device-specific discontinuous reception cycle duration, if a device-specific discontinuous reception cycle duration is preconfigured for the wireless device.

[0059] 3. The method of any of Solutions 1-2, including determining a paging occasion to use within the paging time window according to a second formula, wherein the second formula is based on the minimum of (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not preconfigured for the wireless device, or (b) a default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is preconfigured for the wireless device.

[0060] 4. The method of any of Solutions 1 to 3, further comprising: based on the first determination, making a third determination of a second paging frame value to be used outside the paging time window using a third formula based on the second cycle duration value.

[0061] 5. The method of Solution 4, including making a fourth determination based on a paging opportunity to use outside the paging time window based on a fourth formula that is based on (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not pre-configured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is pre-configured for the wireless device.

[0062] 6. The method of any of Solutions 1 to 5, wherein the first cycle duration value corresponds to an extended discontinuous receive cycle value for an idle state and the second cycle duration value corresponds to an extended discontinuous receive cycle duration for an inactive state.

[0063] 7. A method of wireless communication (e.g., method 150 depicted in FIG. 1B ), comprising: making, by a wireless device, a first determination that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and in an inactive state having a second cycle duration value less than or equal to a threshold (152); making, based on the first determination, a second determination of a first paging opportunity value to be used outside a paging time window using a first formula (154); the first formula being based on (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not preconfigured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is preconfigured for the wireless device (154); and performing paging operations in accordance with the first determination and / or the second determination (156).

[0064] 8. The method of solution 7, wherein the method further includes determining a paging frame value for the wireless device using a second equation based on the second cycle duration value.

[0065] 9. The method of any of Solutions 7-8, wherein the first cycle duration value corresponds to an extended discontinuous receive cycle value for an idle state and the second cycle duration value corresponds to an extended discontinuous receive cycle duration for an inactive state.

[0066] 10. A method of wireless communication (e.g., method 200 depicted in FIG. 2A ), comprising: making, by a network device, a first determination that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and in an inactive state having a second cycle duration value less than or equal to the threshold (202); making, based on the first determination, a second determination of a first paging frame value to be used within a paging time window using a first equation (204), the first equation being based on the second cycle duration (204); and performing paging operations in accordance with the first determination and / or the second determination (206).

[0067] 11. The method of Solution 10, wherein the first equation defines the first paging frame value as the minimum of (a) the second cycle duration, (b) a default discontinuous receive cycle duration in the wireless network, and (c) a device-specific discontinuous receive cycle duration, if a device-specific discontinuous receive cycle duration is preconfigured for the wireless device.

[0068] 12. The method of any of Solutions 10-11, including determining a paging occasion to use within the paging time window according to a second formula, wherein the second formula is based on the minimum of (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not preconfigured for the wireless device, or (b) a default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is preconfigured for the wireless device.

[0069] 13. The method of any of solutions 10-12, further comprising: making a third determination of a second paging frame value to be used outside the paging time window based on the first determination and using a third equation based on the second cycle duration value.

[0070] 14. The method of Solution 13, including making a fourth determination based on a paging opportunity to use outside the paging time window based on a fourth formula that is based on (a) a default discontinuous reception cycle duration in the wireless network if a device-specific discontinuous cycle duration is not preconfigured for the wireless device, or (b) a minimum of the default discontinuous reception cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is preconfigured for the wireless device.

[0071] 15. The method of any of Solutions 10-14, wherein the first cycle duration value corresponds to an extended discontinuous receive cycle value for an idle state and the second cycle duration value corresponds to an extended discontinuous receive cycle duration for an inactive state.

[0072] 16. A method of wireless communication (e.g., method 250 depicted in FIG. 2B ), comprising: making, by a wireless device, a first determination that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and in an inactive state having a second cycle duration value less than or equal to a threshold (252); making, based on the first determination, a second determination of a first paging opportunity value to be used outside a paging time window using a first formula (254); the first formula being based on (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not preconfigured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is preconfigured for the wireless device (254); and performing paging operations in accordance with the first determination and / or the second determination (256).

[0073] 17. The method of solution 16, wherein the method further includes determining a paging frame value for the wireless device using a second equation based on the second cycle duration value.

[0074] 18. The method of Solution 17, wherein the second equation defines the paging frame value as the minimum of (a) the second cycle duration, (b) a default discontinuous receive cycle duration in the wireless network, and (c) a device-specific discontinuous receive cycle duration, if a device-specific discontinuous receive cycle duration is preconfigured for the wireless device.

[0075] 19. The method of any of Solutions 16-18, wherein the first cycle duration value corresponds to an extended discontinuous receive cycle value for an idle state and the second cycle duration value corresponds to an extended discontinuous receive cycle duration for an inactive state.

[0076] For example, to implement embodiment 2 described above in section 4, the following solution may be used.

[0077] 20. A method of wireless communication (e.g., method 300 depicted in FIG. 3A ), comprising: making a first determination (302) by a wireless device in a wireless network that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value that is above a threshold, and that extended discontinuous receive operation is not configured for an inactive state for the wireless device; and performing a paging operation (304) using a paging opportunity using a first formula based on the minimum of (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not configured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is pre-configured for the wireless device.

[0078] 21. (1) performing a paging operation outside the paging time window using a paging frame determined using a second formula based on a radio access network paging cycle value; or (2) performing a paging operation within the paging time window using a paging frame determined using a second equation based on a minimum value from (a) a default discontinuous cycle duration, (b) a radio access network paging cycle value, and (c) a device-specific discontinuous receive cycle value, if configured for the wireless device; 21. The method of solution 20, further comprising performing a paging operation including:

[0079] 22. A method of wireless communication (e.g., method 350 depicted in FIG. 3B ), comprising: making a first determination, by a network device in a wireless network, that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value that is above a threshold, and that extended discontinuous receive operation is not configured for an inactive state for the wireless device (352); and performing a paging operation using a paging opportunity using a first formula based on the minimum of (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration is not configured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if a device-specific discontinuous cycle duration is preconfigured for the wireless device (354).

[0080] 23. (1) outside the paging time window, performing a paging operation using a paging frame determined using a second formula based on a radio access network paging cycle value, or (2) within the paging time window, performing a paging operation using a paging frame determined using a second formula based on a minimum value from (a) a default discontinuous cycle duration, (b) a radio access network paging cycle value, and (c) a device-specific discontinuous receive cycle value, if a device-specific discontinuous receive cycle value is configured for the wireless device. 21. The method of solution 20, further comprising performing a paging operation including:

[0081] 24. An apparatus comprising a processor configured to implement the methods recited in one or more of the above solutions.

[0082] 25. A computer-readable medium having stored thereon processor-executable code for performing the methods recited in any one or more of the above solutions.

[0083] In some embodiments, the equations disclosed in the above solutions may correspond to equations described in current 5G NR standards or in Section 2 of this document.

[0084] In some embodiments, the idle state may correspond to an RRC IDLE state. In some embodiments, the inactive state may correspond to an RRC INACTIVE state. For example, when the wireless device is in the idle state, paging may be initiated by the RAN. For example, when the wireless device is in the idle state, paging may be initiated by the 5G core network.

[0085] 5 shows an example of a wireless communication system 400 to which techniques according to one or more embodiments of the present technology may be applied. The wireless communication system 400 may include one or more base stations (BSs) 405a, 405b, one or more wireless devices 410a, 410b, 410c, 410d, and a core network 425. The base stations 405a, 405b can provide wireless service to the wireless devices 410a, 410b, 410c, and 410d in one or more wireless sectors. In some implementations, the base stations 405a, 405b include directional antennas to generate two or more directional beams to provide wireless coverage in different sectors.

[0086] The core network 425 can communicate with one or more base stations 405a, 405b. The core network 425 provides connectivity with other wireless and wired communication systems. The core network may include one or more service subscription databases for storing information related to subscribed wireless devices 410a, 410b, 410c, and 410d. The first base station 405a can provide wireless service based on a first radio access technology, and the second base station 405b can provide wireless service based on a second radio access technology. The base stations 405a and 405b may be co-located or may be separately installed in the field depending on the deployment scenario. The wireless devices 410a, 410b, 410c, and 410d can support multiple different radio access technologies. The techniques and embodiments described in this document may be used in conjunction with the wireless devices 410a, 410b, 410c, and 410d described in this document. Taji local station or wireless devices It can be implemented by:

[0087] 6 is a block diagram representation of a portion of a radio station in accordance with one or more embodiments of the present technology. A radio station 505, such as a base station (or network device) or a wireless device (or UE), may include processor electronics 510, such as a microprocessor, that implements one or more of the wireless techniques presented in this document. The radio station 505 may include transceiver electronics 515 for transmitting and / or receiving wireless signals via one or more communication interfaces, such as an antenna 520. The radio station 505 may include other communication interfaces for transmitting and receiving data. The radio station 505 may include one or more memories (explicitly not shown) configured to store information such as data and / or instructions. In some implementations, the processor electronics 510 may include at least a portion of the transceiver electronics 515. In some embodiments, at least some of the disclosed techniques, modules, or functionality are implemented using the radio station 505.

[0088] A computer program (also known as a program, software, software application, script, or code) can be written in any form of programming language, including compiled or interpreted languages, and can be deployed in any form, such as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment. A computer program does not necessarily correspond to a file in a file system. A program can be stored as part of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to the program in question, or in multiple cooperating files (e.g., files storing one or more modules, subprograms, or portions of code). A computer program can be deployed to be executed on one computer or on multiple computers located at one site or distributed across multiple sites and interconnected by a communications network.

[0089] The processes and logic flows described in this document may be performed by one or more programmable processors that execute one or more computer programs to perform functions by operating on input data and generating output. The processes and logic flows may also be performed by or implemented as special purpose logic circuitry, such as an FPGA (Field Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit).

[0090] Processors suitable for executing a computer program include, by way of example, both general-purpose and special-purpose microprocessors, as well as any one or more processors of any kind of digital computer. Generally, a processor receives instructions and data from a read-only memory or a random-access memory, or both. The essential elements of a computer are a processor for executing instructions and one or more memory devices for storing instructions and data. Generally, a computer also includes one or more mass storage devices, such as magnetic, magneto-optical, or optical disks, for storing data, or is operatively coupled to receive data from or transfer data to them, or both. However, a computer need not have such devices. Computer-readable media suitable for storing computer program instructions and data include, by way of example, all forms of non-volatile memory, media, and memory devices, including, by way of example, semiconductor memory devices, such as EPROMs, EEPROMs, and flash memory devices; magnetic disks, such as internal or removable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks. The processor and memory may be supplemented by, or incorporated in, special-purpose logic circuitry.

[0091] While this patent document contains many details, these should not be construed as limitations on the scope of any invention or what may be claimed, but rather as descriptions of features that may be specific to particular embodiments of a particular invention. Some features described in this patent document in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination. Moreover, while features may be described above as acting in some combination and initially claimed as such, one or more features from a claimed combination can, in some cases, be cut from the combination, and the claimed combination may be directed to a subcombination or variations of the subcombination.

[0092] Similarly, although operations are depicted in the figures in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown, or in any sequential order, or that all of the shown operations be performed, to achieve desirable results. Moreover, the separation of various system components in the embodiments described in this patent document should not be understood as requiring such separation in all embodiments.

[0093] Only a few implementations and examples have been described; other implementations, extensions, and variations can be made based on what is described and illustrated in this patent document.

Claims

1. making a first determination, by a wireless device, that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and an inactive state having a second cycle duration value less than or equal to the threshold; making a second determination of a first paging frame value to be used within a paging time window using a first equation based on the first determination, the first equation being based on the second cycle duration; performing a paging operation according to the first determination and the second determination.

2. the first formula defines the first paging frame value based on a minimum value of (a) the second cycle duration, (b) a default discontinuous reception cycle duration in a wireless network, and (c) a device-specific discontinuous reception cycle duration, if a device-specific discontinuous reception cycle duration is preconfigured for the wireless device; and 2. The method of claim 1, wherein the first cycle duration value corresponds to an extended discontinuous receive cycle value for the idle state and the second cycle duration value corresponds to an extended discontinuous receive cycle value for the inactive state.

3. determining a paging occasion to use within the paging time window according to a second formula, the second formula being based on (a) a default discontinuous receive cycle duration in a wireless network if a device-specific discontinuous cycle duration has not been preconfigured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in a wireless network and the device-specific discontinuous cycle duration if the device-specific discontinuous cycle duration is preconfigured for the wireless device; and 3. The method of claim 1, further comprising: making a third determination of a second paging frame value to be used outside the paging time window based on the first determination and using a third equation based on the second cycle duration value.

4. making a first determination, by a wireless device, that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and an inactive state having a second cycle duration value less than or equal to the threshold; making a second determination of a first paging opportunity value to be used outside a paging time window using a first formula based on the first determination, the first formula being based on (a) a default discontinuous receive cycle duration in a wireless network if a device-specific discontinuous cycle duration is not pre-configured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in a wireless network and the device-specific discontinuous cycle duration if the device-specific discontinuous cycle duration is pre-configured for the wireless device; performing a paging operation according to the first determination and the second determination; A method of wireless communication, comprising:

5. the method further comprising determining a paging frame value for the wireless device using a second equation based on the second cycle duration value; and 5. The method of claim 4, wherein the first cycle duration value corresponds to an extended discontinuous receive cycle value for the idle state and the second cycle duration value corresponds to an extended discontinuous receive cycle duration for the inactive state.

6. making a first determination, by the network device, that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and an inactive state having a second cycle duration value less than or equal to the threshold; making a second determination of a first paging frame value to be used within a paging time window using a first equation based on the first determination, the first equation being based on the second cycle duration; performing a paging operation according to the first determination and the second determination; A method of wireless communication, comprising:

7. the first formula defines the first paging frame value as the minimum of (a) the second cycle duration, (b) a default discontinuous receive cycle duration in a wireless network, and (c) a device-specific discontinuous receive cycle duration, if a device-specific discontinuous receive cycle duration is preconfigured for the wireless device; and 7. The method of claim 6, wherein the first cycle duration value corresponds to an extended discontinuous receive cycle value for the idle state and the second cycle duration value corresponds to an extended discontinuous receive cycle value for the inactive state.

8. determining a paging occasion to use within the paging time window according to a second formula, the second formula being based on (a) a default discontinuous receive cycle duration in a wireless network if a device-specific discontinuous cycle duration has not been preconfigured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in a wireless network and the device-specific discontinuous cycle duration if the device-specific discontinuous cycle duration is preconfigured for the wireless device; and 8. The method of claim 6, further comprising: making a third determination of a second paging frame value to be used outside the paging time window based on the first determination and using a third equation based on the second cycle duration value.

9. making a first determination, by a wireless device, that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value above a threshold and an inactive state having a second cycle duration value less than or equal to the threshold; making a second determination of a first paging opportunity value to be used outside a paging time window using a first formula based on the first determination, the first formula being based on (a) a default discontinuous receive cycle duration in a wireless network if a device-specific discontinuous cycle duration is not pre-configured for the wireless device, or (b) a minimum of the default discontinuous receive cycle duration in a wireless network and the device-specific discontinuous cycle duration if the device-specific discontinuous cycle duration is pre-configured for the wireless device; performing a paging operation according to the first determination and the second determination.

10. the method further comprising determining a paging frame value for the wireless device using a second equation based on the second cycle duration value; the second formula defines the paging frame value as the minimum of (a) the second cycle duration, (b) a default discontinuous receive cycle duration in the wireless network, and (c) a device-specific discontinuous receive cycle duration, if a device-specific discontinuous receive cycle duration is preconfigured for the wireless device; and 10. The method of claim 9, wherein the first cycle duration value corresponds to an extended discontinuous receive cycle value for the idle state and the second cycle duration value corresponds to an extended discontinuous receive cycle duration for the inactive state.

11. making a first determination, by a wireless device in a wireless network, that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value that is above a threshold, and that extended discontinuous receive operation is not configured for an inactive state for the wireless device; performing a paging operation using a paging opportunity using a first formula based on a minimum of (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration has not been configured for the wireless device, or (b) a minimum of a default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if the device-specific discontinuous cycle duration has been preconfigured for the wireless device; A method of wireless communication, comprising:

12. making a first determination, by a network device within the wireless network, that the wireless device is configured for discontinuous receive operation in an idle state having a first cycle duration value that is above a threshold, and that extended discontinuous receive operation is not configured for an inactive state for the wireless device; performing a paging operation using a paging opportunity using a first formula based on a minimum of (a) a default discontinuous receive cycle duration in the wireless network if a device-specific discontinuous cycle duration has not been configured for the wireless device, or (b) a minimum of a default discontinuous receive cycle duration in the wireless network and the device-specific discontinuous cycle duration if the device-specific discontinuous cycle duration has been preconfigured for the wireless device; A method of wireless communication, comprising:

13. (1) performing the paging operation outside a paging time window using a paging frame determined using a second formula based on a radio access network paging cycle value; or (2) performing the paging operation using the paging frame determined using the second equation within the paging time window based on a minimum value from: (a) the default discontinuous cycle duration; (b) the radio access network paging cycle value; and (c) a device-specific discontinuous reception cycle value, if configured for the wireless device.

13. The method of claim 12, further comprising performing the paging operation comprising:

14. An apparatus comprising a processor configured to perform the method according to any one of claims 1 to 5 and claims 9 to 11.

15. An apparatus comprising a processor configured to carry out the method of any one of claims 6 to 8, 12 and 13.

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