Configuring an on-demand common signal transmission mode in wireless networks
The on-demand common signal transmission mode in 5G networks addresses high energy consumption by optimizing signal detection through indication signaling, enhancing energy efficiency and reducing power usage.
Patent Information
- Application Number
- PCT/CN2024/103477
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-07-17
AI Technical Summary
5G networks face high energy consumption due to dense deployments, massive MIMO, and large bandwidths, leading to increased operating expenses and carbon footprint, while existing methods result in unnecessary power consumption through long-term blind detection by wireless devices.
Implementing an on-demand common signal transmission mode in cellular networks, where indication signaling determines the starting point of common signal transmission, optimizing energy efficiency without affecting system performance.
Reduces network energy consumption and power usage in wireless devices by ensuring timely and efficient detection of common signals, thereby minimizing unnecessary power consumption and operational costs.
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Figure CN2024103477_17072025_PF_FP_ABST
Abstract
Description
CONFIGURING AN ON-DEMAND COMMON SIGNAL TRANSMISSION MODE IN WIRELESS NETWORKSTECHNICAL FIELD
[0001] This disclosure is directed generally to digital wireless communications.BACKGROUND
[0002] Mobile telecommunication technologies are moving the world toward an increasingly connected and networked society. In comparison with the existing wireless networks, next generation systems and wireless communication techniques will need to support a much wider range of use-case characteristics and provide a more complex and sophisticated range of access requirements and flexibilities.
[0003] Long-Term Evolution (LTE) is a standard for wireless communication for mobile devices and data terminals developed by 3rd Generation Partnership Project (3GPP) . LTE Advanced (LTE-A) is a wireless communication standard that enhances the LTE standard. The 5th generation of wireless system, known as 5G, advances the LTE and LTE-Awireless standards and is committed to supporting higher data-rates, large number of connections, ultra-low latency, high reliability and other emerging business needs.SUMMARY
[0004] Techniques are disclosed for configuring an on-demand common signal transmission mode in existing and emerging cellular networks. This is achieved, in an example, by sending indication signaling for the on-demand common signal transmission, which enables a wireless device (e.g., a User Equipment (UE) ) in the network to power-efficiently detect the on-demand common signal. In some examples, the indication signal includes information related to the transmission of the on-demand common signal.
[0005] In an example aspect, a wireless communication method includes detecting, by a wireless device from a network node, an on-demand common signal. In some embodiments, a transmission of the on-demand common signal is indicated by an indication signaling.
[0006] In another example aspect, a wireless communication method includes transmitting, by a network node to a wireless device, an on-demand common signal. In some embodiments, a transmission of the on-demand common signal is indicated by an indication signaling.
[0007] In yet another example aspect, the above-described methods are embodied in the form of processor-executable code and stored in a non-transitory computer-readable storage medium. The code included in the computer readable storage medium when executed by a processor, causes the processor to implement the methods described in this patent document.
[0008] In yet another example aspect, a device that is configured or operable to perform the above-described methods is disclosed.
[0009] The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims.
[0010] BRIEF DESCRIPTION OF THE DRAWING
[0011] FIGS. 1-6 show various examples for configuring the transmission time of an on-demand common signal based on the transmission of indication signaling.
[0012] FIG. 7 shows a flowchart for an example wireless communication method.
[0013] FIG. 8 shows a flowchart for another example wireless communication method.
[0014] FIG. 9 shows a block diagram of an example hardware platform that may be a part of a network device or a communication device.
[0015] FIG. 10 shows an example of wireless communication including a base station (BS) and user equipment (UE) based on some implementations of the disclosed technology.DETAILED DESCRIPTION
[0016] Mobile network operators are concerned about 5G network energy consumption, despite that 5G offers a significant energy efficiency improvement (in terms of energy consumed per traffic unit) over previous generations of mobile networks. Dense deployments, massive MIMO, large bandwidths, and many frequency bands have led to a high network energy consumption level in 5G, resulting in increased operating expense and carbon footprint.
[0017] The addition of an on-demand common signal transmission mode in existing (and emerging) cellular systems enables gains in energy savings to be achieved without affecting system performance and / or the user experience. In some examples, the network experiences a loss in energy savings due to too early transmissions. In other examples, long-term blind detection by a wireless device (e.g., user equipment (UE) ) results in unnecessary power consumption. These drawbacks are mitigated by embodiments of the disclosed technology, which provide methods, systems, and devices for determining the starting point of an on-demand common signal transmission.
[0018] The example headings for the various sections below are used to facilitate the understanding of the disclosed subject matter and do not limit the scope of the claimed subject matter in any way. Accordingly, one or more features of one example section can be combined with one or more features of another example section. Furthermore, 5G terminology is used for the sake of clarity of explanation, but the techniques disclosed in the present document are not limited to 5G technology only, and may be used in wireless systems that implemented other protocols, e.g., sixth generation (6G) technology and systems.
[0019] 1 Introduction
[0020] 3GPP Release 19 of the 5G Advanced standard has introduced a host of new capabilities that establish the technical foundation for 6G. These capabilities include additional techniques that can further reduce energy consumption in the 5G network. In some examples, for a Synchronization Signal Block (SSB) burst indicated by on-demand SSB SCell operation via a Medium Access Control (MAC) Control Element (CE) , the User Equipment (UE) expects that on-demand SSB burst (s) is transmitted from time instance A which is determined as follows.
[0021] In some implementations, and for the case of the SSB, time instance A is the slot boundary of the first SSB time-domain position of an actually transmitted on-demand SSB burst which is T slots or symbols after the slot or symbol where UE receives a signaling from the base station (e.g., gNB) to indicate on-demand SSB transmission. Herein, the SSB time-domain positions of on-demand SSB burst are configured by gNB. It is further noted that the value of T is not less than existing timeline required for UE’s MAC CE processing for SCell activation.
[0022] In some embodiments, the value of T includes multiple components (e.g., described in Section 2.5) . In other embodiments, the value of T can be predefined, whereas in yet other embodiments, the value of T can be indicated and / or configured by the gNB.
[0023] Methods, procedures, and techniques for configuring the transmission time of an on-demand common signal based on the transmission of indication signaling, as well as use cases that clarify various features of the disclosed technology, are described in Section 2, and example methods and implementations are described in Section 3.
[0024] 2 Example embodiments of the disclosed technology
[0025] Embodiments of the disclosed technology include a method for indicating an on-demand common signal transmission for wireless communication, which includes detecting, by a user equipment (UE) , the on-demand common signal transmitted from a base station, and where the on-demand common signal is indicated by an indication signaling.
[0026] In some embodiments, the on-demand common signal includes at least one of a synchronization signal block (SSB) , a system information block (SIB) , a secondary synchronization signal, a primary synchronization signal, a synchronization signal, a signal for measurement, a signal for idle / inactive mode UE, a signal for connected mode UE, etc.
[0027] In some embodiments, the indication signaling includes at least one of a radio resource control (RRC) signaling, a downlink (DL) medium access control (MAC) control element (CE) , a downlink control information (DCI) , an uplink (UL) MAC CE, an UL signal, or an UL channel. In other embodiments, the indication signaling further indicates the measurement reports based on the on-demand common signal.
[0028] In this patent document, the secondary cell can be (or can be replaced by) a primary cell, a cell, a serving cell, a carrier, a frequency band, a bandwidth part, and / or a frequency resource element. Furthermore, the primary cell can be (or can be replaced by) a cell, a serving cell, a carrier, a frequency band, a bandwidth part, and / or a frequency resource element. And further, the carrier can be (or can be replaced by) a cell, a serving cell, a frequency band, a bandwidth part, and / or a frequency resource element.
[0029] In some embodiments, the common signal time-domain position is predefined, whereas in other embodiments, the common signal time-domain position is indicated or configured by a base station.
[0030] In some embodiments, the first common signal time-domain position is the first candidate common signal time-domain position of an on-demand common signal burst. In other embodiments, the first common signal time domain position is the first common signal time-domain position that a UE can detect. In yet other embodiments, the first common signal time-domain position is the first candidate common signal time-domain position after an application delay due to the indication signaling.
[0031] In some embodiments, the actually transmitted on-demand common signal is indicated or configured by base station.
[0032] 2.1 Conditional triggering of on-demand common signal transmission
[0033] In some embodiments, the transmission of the on-demand common signal is triggered by the indication signaling satisfying a condition C. In some embodiments, the UE assumes that the on-demand common signal triggered by the indication signaling satisfies condition C. Herein, the condition C includes at least one of:
[0034] – the on-demand common signal triggered by the indication signaling is transmitted from time instance A,
[0035] – the on-demand common signal triggered by the indication signaling is transmitted no later than time instance A,
[0036] – the on-demand common signal triggered by the indication signaling is transmitted from the first half frame after time instance A,
[0037] – the on-demand common signal triggered by the indication signaling is transmitted from the first common signal time-domain position after time instance A, or
[0038] – the on-demand common signal triggered by the indication signaling is transmitted from the first common signal time-domain position of an actually transmitted on-demand common signal burst after time instance A.
[0039] 2.2 Detecting the on-demand common signal transmission
[0040] In some embodiments, the UE detects the on-demand common signal triggered by the indication signaling. Herein, the UE is configured to begin performing the detection operation from at least one of:
[0041] – from time instance A,
[0042] – from no earlier than time instance A,
[0043] – from the first half frame after time instance A,
[0044] – from the first common signal time-domain position after time instance A, or
[0045] – from the first common signal time-domain position of an actually transmitted on-demand common signal burst after time instance A.
[0046] 2.3 Some examples of determining time instance A
[0047] In some embodiments, the time instance A includes at least one of:
[0048] – the slot boundary of the first common signal time domain position,
[0049] – the slot boundary of the first common signal time domain position of actually transmitted on-demand common signal,
[0050] – the first common signal time domain position, or
[0051] – the first common signal time domain position of an actually transmitted on-demand common signal.
[0052] 2.4 Other examples of determining time instance A based on a value of T
[0053] In some embodiments, the time instance A is determined by T after the indication slot or an indication symbol, as described in the examples below.
[0054] – The indication slot refers to the slot where UE receives or transmits the indication signaling to indicate on-demand common signal transmission. In some embodiments, the indication slot is the slot where the indication signaling transmitted. In other embodiments, the indication slot is the first slot where the indication signaling transmitted. In yet other embodiments, the indication slot is the last slot where the indication signaling transmitted.
[0055] – The indication symbol refers to the symbol where UE receives or transmits the indication signaling to indicate on-demand common signal transmission. In some embodiments, the indication symbol is the symbol where the indication signaling transmitted. In other embodiments, the indication symbol is the first symbol where the indication signaling transmitted. In yet other embodiments, the indication symbol is the last symbol where the indication signaling transmitted.
[0056] – The value of T is pre-defined, configured by the base station, or indicated by the base station. In some embodiments, T is indicated by the indication signaling. In other embodiments, a unit of T includes at least one of a frame, a millisecond (ms) , a slot, or a symbol.
[0057] – The time instance A is a duration T after the slot or symbol where UE receives or transmits the indication signaling to indicate on-demand common signal transmission.
[0058] – The time instance A is the first half frame after a duration T after the slot or symbol where UE receives or transmits the indication signaling to indicate on-demand common signal transmission.
[0059] – The time instance A is the first common signal time-domain position after a duration T after the slot or symbol where UE receives or transmits the indication signaling to indicate on-demand common signal transmission.
[0060] – The time instance A is the first common signal time-domain position of an actually transmitted on-demand common signal burst after a duration T after the slot or symbol where UE receives or transmits the indication signaling to indicate on-demand common signal transmission.
[0061] 2.5 The value of T including multiple components
[0062] In some embodiments, the value of T includes at least one of a first offset, a second offset, a third offset, or a fourth offset.
[0063] 2.5.1 A first offset, T_HARQ
[0064] In some embodiments, the first offset for HARQ-ACK (denoted T_HARQ) is an offset from the indication slot or symbol to the slot or symbol where UE transmits or receives a HARQ-ACK. In some examples, when the indication signaling is a DL MAC CE, the UE receives the indication signaling in slot n, and reports the HARQ-ACK in slot n+k. In this case, the T_HARQ is equal to k slots, wherein n ≥ 0 and k ≥ 1.
[0065] In some embodiments, the first offset T_HARQ is determined by at least one of a predefined rule, indicated by a first signaling, or provided by a higher layer parameter. The examples described below clarify certain features and aspects of the first offset.
[0066] – T_HARQ is configured by a higher layer parameter
[0067] – the value of T_HARQ belongs to a HARQ-ACK value set, and the HARQ-ACK value set is predefined or provided by a higher layer parameter.
[0068] – T_HARQ is determined by a predefined rule. For example:
[0069] – the value of T_HARQ is predefined, e.g., equal to n1 slots, with n1 ≥ 1.
[0070] – the transmission time of the HARQ-ACK is the first half frame after the indication signaling. In some examples, the HARQ-ACK is transmitted on the first uplink slot after the first half frame after the indication signaling. In other examples, the HARQ-ACK is transmitted on the first uplink slot before the first half frame after the indication signaling.
[0071] – T_HARQ is indicated by a first signaling. For example:
[0072] – the first signaling can be a DCI, a MAC CE, or an RRC signaling
[0073] – the first signaling is the indication signaling
[0074] – the first signaling is a signaling to schedule the indication signaling
[0075] – the first signaling is a RRC signaling
[0076] – the first signaling includes a first field to indicate the T_HARQ
[0077] – the first field is a bitmap, and each bit in the first field maps to a value of a HARQ-ACK value set, with the HARQ-ACK value set being predefined or provided by a higher layer parameter
[0078] – the first field is a codepoint, and the codepoint indicates a value index of a HARQ-ACK value set, with the HARQ-ACK value set being predefined or provided by a higher layer parameter
[0079] 2.5.2 A second offset, T_v
[0080] In some embodiments, the second offset (denoted T_v) is a variable offset. The examples described below clarify certain features and aspects of the second offset.
[0081] In some embodiments, the second offset is an offset between a starting point and a reference point. For example:
[0082] – the start point is at least one of the slot or symbol where the UE receives or transmits the indication signaling, the slot or symbol where the UE transmits or receives the feedback of the indication signaling, or a time-domain position associated with a third offset. For example, the start point is an end of the third offset.
[0083] – the reference point is determined by at least one of a start of a half frame after the UE receives or transmits the indication signaling, a start of a half frame after the UE transmits or receives the feedback of the indication signaling, a start of a system frame, or a predefined position.
[0084] – the start point of the T_v is the end of the third offset. For example, when the UE receives the indication signaling in slot n, and transmits the HARQ-ACK information in slot n+k, the third offset is equal to M slots, and the start point of the T_v is the start of the slot n+k+M+1 in SCell.
[0085] In some embodiments, the length and / or value of the second offset is determined by a start of the second offset or the reference point, indicated by the first signaling, configured by an RRC parameter, predefined, or provided by base station. For example:
[0086] – the first signaling comprises a second field to indicate the second offset
[0087] 2.5.3 A third offset, T_c
[0088] In some embodiments, the third offset (denoted T_c) is a constant offset. The examples described below clarify certain features and aspects of the third offset.
[0089] – at least one of the value of the third offset, the start of the third offset, or the end of the third offset is predefined, configured by a higher layer parameter, or indicated by the first signaling. In some examples, the value of the third offset is predefined to be 3ms. In other examples, the first signaling comprises a third field to indicate the third offset.
[0090] – a value of third offset is equal to a multiple of 5ms, e.g., N×5ms with N≥1.
[0091] – the unit of the third offset is a slot. In some examples, the value of the third offset is equal to M slots, with M≥1. In other examples, M is equals to H×N_SCS , with H≥1 (e.g., H=3 or H=5) and N_SCS being a number of slots per subframe for the subcarrier spacing (SCS) configuration. Herein, the SCS is equal to (2^u) ×15KHz and N_SCS is equal to 2^u.
[0092] – the third offset being a constant offset ensures that the UE has sufficient time to process the indication signaling.
[0093] 2.5.4 A fourth offset, T_tx
[0094] In some embodiments, the fourth offset (denoted T_tx) can be determined based on one of the following:
[0095] – the start of the fourth offset is a start of a half frame,
[0096] – the start of the fourth offset is a slot boundary of the first common signal time-domain position, or
[0097] – the end of the fourth offset is the first common signal time-domain position.
[0098] 2.5.5 Additional examples
[0099] Embodiments of the disclosed technology further provide the following examples.
[0100] – the unit of one or more of the first offset, the second offset, the third offset, and / or the fourth offset is a frame, a millisecond (ms) , a slot, or a symbol.
[0101] – the unit of each type of offset can be different, and at least one of a frame, a millisecond, a slot, or a symbol. In some examples, the unit of the first and second offsets is a slot, the unit of the third offset is a millisecond, and the unit of the fourth offset is a symbol.
[0102] – the duration T, the components of T (e.g., the first offset, the second offset, the third offset, and / or the fourth offset) , and / or the SCS corresponding to the unit of the components is based on the SCS of the PCell or the target cell (which is the cell where the on-demand common signal transmitted on) . For example:
[0103] – the unit of the first offset is based on the SCS of the PCell, and the unit of the second offset is based on the SCS of the SCell.
[0104] – the first offset is based on the PCell, and the other offsets are based on the target cell. Herein, the time instance A is the X1-th target cell slot or symbol after the last target cell slot that coincides with the reference position, with the reference position being the end of the first offset in the PCell, and X1 including at least one of the second offset, the third offset, or the fourth offset.
[0105] – the first offset and the second offset are based on the PCell, and the other offsets are based on the target cell. The time instance A is the X2-th target cell slot or symbol after the last target cell slot that coincides with the reference position, with the reference position being the end of the second offset in the PCell, and X2 including at least one of the third offset or the fourth offset.
[0106] – the first offset and the third offset are based on the PCell, and the other offsets are based on the target cell. The time instance A is the X3-th target cell slot or symbol after the last target cell slot that coincides with the reference position, with the reference position being the end of the third offset in the PCell, and X3 including at least one of the second offset or the fourth offset.
[0107] – the time instance A is T target cell slots or symbols after the target cell slot or symbol that coincides with the indication slot or symbol.
[0108] – the time instance A is the slot or symbol that coincides with T after the indication slot or symbol.
[0109] In some embodiments, when the time instance A is later than the first common signal time-domain position of an on-demand common signal burst, the UE detects the remaining on-demand common signal occasion. In other embodiments, when the time instance A is later than the first candidate common signal time-domain position of an on-demand common signal burst, the UE detects the on-demand common signal from the next on-demand common signal burst.
[0110] 2.6 Example use cases for determining time instance A
[0111] FIGS. 1-6 show various use cases that implement the embodiments described in Sections 2.1-2.5, and further clarify certain features and aspects of the disclosed technology.
[0112] In some embodiments, and as shown in FIG. 1, the time instance A is the slot boundary of the first SSB time-domain position which is T units after the slot where UE receives the indication signaling to indicate on-demand SSB transmission. Herein, T comprises a first offset (T_HARQ) and a third offset (T_c) . In some embodiments, the HARQ-ACK is transmitted on the start of a half frame after the indication signaling, and T_sis equal to 5ms. Therefore, the time instance A is the start of a half frame.
[0113] In some embodiments, and as shown in FIG. 2, the time instance A is the first SSB time-domain position which is T units after the slot where UE receives the indication signaling to indicate on-demand SSB transmission. Herein, T comprises a first offset (T_HARQ) , a third offset (T_c) and a fourth offset (T_tx) . In some embodiments, the HARQ-ACK is transmitted on the start of a half frame after the indication signaling, and T_c is equal to 5ms. Therefore, the end of the T_c is the start of a half frame, and the T_tx is determined by the common signal transmission pattern.
[0114] In some embodiments, and as shown in FIG. 3, the time instance A is the slot boundary of the first SSB time-domain position which is T units after the slot where UE receives the indication signaling to indicate on-demand SSB transmission. Herein, T comprises a first offset (T_HARQ) , a second offset (T_v) , and a third offset (T_c) . In some embodiments, the T_HARQ is predefined or configured. The start of the T_v is the slot or symbol where UE transmits the feedback of the indication signaling, and the end of the T_v is a reference point. In some examples, the reference point can be the first half frame after the feedback of the indication signaling. In some examples, the T_c is equal to a multiple of 5ms, e.g., N×5ms for N≥1.
[0115] In some embodiments, and as shown in FIG. 4, the time instance A is the first SSB time-domain position which is T units after the slot where UE receives the indication signaling to indicate on-demand SSB transmission. Herein, T comprises a first offset (T_HARQ) , a second offset (T_v) , a third offset (T_c) and a fourth offset (T_tx) . In some embodiments, the T_HARQ is predefined or configured by the gNB. The start of the T_v is the slot or symbol where UE transmits the feedback of the indication signaling, and the end of the T_v is a reference point. In some examples, the reference point can be the first half frame after the feedback of the indication signaling. In some examples, the T_c is equal to a multiple of 5ms, e.g., N×5ms for N≥1. In some examples, the T_tx is determined by the common signal transmission pattern.
[0116] In some embodiments, and as shown in FIG. 5, the time instance A is the slot boundary of the first SSB time-domain position which is T units after the slot where UE receives the indication signaling to indicate on-demand SSB transmission. Herein, T comprises a second offset (T_v) and a third offset (T_c) . The start of the T_v is the slot or symbol where UE receives the indication signaling, the end of the T_v is the first half frame after the feedback of the indication signaling, and the T_c is equal to a multiple of 5ms, e.g., N×5ms for N≥1.
[0117] In some embodiments, and as shown in FIG. 6, the time instance A is the slot boundary of the first SSB time-domain position which is T units after the slot where UE receives the indication signaling to indicate on-demand SSB transmission. Herein, T comprises a first offset (T_HARQ) , a second offset (T_v) , and a third offset (T_c) . In some embodiments, the start point of the T_v is the end of the third offset. For example, when the UE receives the indication signaling in slot n, and transmits the HARQ-ACK information in slot n+k, the third offset is equal to M slots, and the time instance A is the m1-th target cell slot after the last target cell slot coinciding with the reference slot n+k+M. Herein, m1 can be provided by the base station.
[0118] 3 Example methods and implementations of the disclosed technology
[0119] FIG. 7 shows a flowchart for an example wireless communication method 700. The method 700 includes, at operation 710, detecting, by a wireless device from a network node, an on-demand common signal. In some embodiments, a transmission of the on-demand common signal is indicated by an indication signaling.
[0120] FIG. 8 shows a flowchart for an example wireless communication method 800. The method 800 includes, at operation 810, transmitting, by a network node to a wireless device, an on-demand common signal. In some embodiments, a transmission of the on-demand common signal is indicated by an indication signaling.
[0121] The described features can be implemented to further provide one or more of the following technical solutions:
[0122] 1. A wireless communication method, comprising: detecting, by a wireless device from a network node, an on-demand common signal, wherein a transmission of the on-demand common signal is indicated by an indication signaling.
[0123] 2. A wireless communication method, comprising: transmitting, by a network node to a wireless device, an on-demand common signal, wherein a transmission of the on-demand common signal is indicated by an indication signaling.
[0124] 3. The method of solution 1 or 2, wherein the indication signaling comprises at least one of a radio resource control (RRC) signaling, a downlink (DL) medium access control (MAC) control element (CE) , a downlink control information (DCI) , an uplink (UL) MAC CE, a UL signal, or a UL channel.
[0125] 4. The method of solution 3, wherein the indication signaling indicates a transmission of one or more measurement reports associated with the on-demand common signal.
[0126] 5. The method of solution 1 or 2, wherein a time instance associated with the on-demand common signal is a duration T after an indication slot or an indication symbol corresponding to a transmission time or a reception time of the indication signaling, and wherein T is a non-negative value.
[0127] 6. The method of solution 5, wherein the wireless device starts detecting the on-demand common signal from at least one of: the time instance, a time no earlier than the time instance, a time-domain position corresponding to a first half frame after the time instance, a time-domain position corresponding to a first scheduled transmission time of the on-demand common signal after the time instance, or a time-domain position corresponding to a first actual transmission time of an on-demand common signal burst after the time instance (e.g., as described in Section 2.2) .
[0128] 7. The method of solution 5, wherein T is a predefined value, configured by a radio resource control (RRC) parameter, configured by a system information block (SIB) , or indicated by the indication signaling.
[0129] 8. The method of solution 5, wherein T comprises at least one of a first offset, a second offset, a third offset, or a fourth offset (e.g., as described in Section 2.5) .
[0130] 9. The method of solution 8, wherein the first offset corresponds to a duration between (a) the indication slot or the indication symbol and (b) a slot or a symbol corresponding to a transmission time or a reception time of a hybrid automatic repeat request (HARQ) -acknowledgement (ACK) message.
[0131] 10. The method of solution 9, wherein the transmission time or the reception time of the HARQ-ACK message is a first half frame after the indication signaling.
[0132] 11. The method of any of solutions 8 to 10, wherein the first offset is determined by a higher layer parameter, a predefined value, or indicated by a first signaling.
[0133] 12. The method of any of solutions 8 to 10, wherein a value of the first offset is a value from a HARQ-ACK value set, and wherein the HARQ-ACK value set is predefined or configured by a higher layer parameter.
[0134] 13. The method of solution 8, wherein the second offset corresponds to a duration between a start point and a reference point.
[0135] 14. The method of solution 13, wherein the start point comprises (a) the indication slot or the indication symbol, (b) a slot or a symbol corresponding to a transmission time or a reception time of a feedback signal associated with the indication signaling, or (c) a time-domain position associated with the third offset.
[0136] 15. The method of solution 13, wherein the reference point is determined based on at least one of a start of a half frame after the indication slot or the indication symbol, the start of the half frame after the slot or the symbol corresponding to the transmission time or the reception time of a feedback signal associated with the indication signaling, a start of a system frame, or a predefined time-domain position.
[0137] 16. The method of solution 8, wherein at least one of the third offset, a start of the third offset, or an end of the third offset is a predefined value, configured by a higher layer parameter, associated with the second offset, or indicated by a first signaling.
[0138] 17. The method of solution 11 or 16, wherein the first signaling comprises at least one of a radio resource control (RRC) signaling, a medium access control (MAC) control element (CE) , or a downlink control information (DCI) .
[0139] 18. The method of solution 11 or 16, wherein the first signaling comprises at least one of a first field indicative of the first offset, a second field indicative of the second offset, a third field indicative of the third offset.
[0140] 19. The method of solution 18, wherein the first field is a bitmap, and wherein each bit in the bitmap maps to a value of a HARQ-ACK value set, and wherein the HARQ-ACK value set is predefined or configured by a higher layer parameter.
[0141] 20. The method of solution 18, wherein the first field is a codepoint that indicates a value index of a HARQ-ACK value set, and wherein the HARQ-ACK value set is predefined or configured by the higher layer parameter.
[0142] 21. The method of solution 8, wherein: a start of the fourth offset is a start of a half frame, or the start of the fourth offset is a slot boundary of a time-domain position of the on-demand common signal.
[0143] 22. The method of solution 8, wherein an end of the fourth offset is a time-domain position of the on-demand common signal.
[0144] 23. The method of any of solutions 1 to 22, wherein the on-demand common signal comprises at least one of a synchronization signal block, a system information block, a secondary synchronization signal, a primary synchronization signal, a synchronization signal, a signal that triggers performing one or more measurements, a signal that triggers the wireless device to switch to an idle / inactive mode, or a signal that triggers the wireless device to switch to a connected mode.
[0145] 24. An apparatus for wireless communication comprising one or more processors, configured to implement the method recited in one or more of solutions 1 to 23.
[0146] 25. A non-transitory computer readable program storage medium having code stored thereon, the code, when executed by a processor, causing the processor to implement the method recited in one or more of solutions 1 to 23.
[0147] FIG. 9 shows a block diagram of an example hardware platform 900 that may be a part of a network device (e.g., base station) or a communication device (e.g., a user equipment (UE) ) . The hardware platform 900 includes at least one processor 910 and a memory 905 having instructions stored thereupon. The instructions upon execution by the processor 910 configure the hardware platform 900 to perform the operations described in FIGS. 1 to 8 and in the various embodiments described in this patent document. The transmitter 915 transmits or sends information or data to another device. For example, a network device transmitter can send a message to a user equipment. The receiver 920 receives information or data transmitted or sent by another device. For example, a user equipment can receive a message from a network device.
[0148] The implementations as discussed above will apply to a wireless communication. FIG. 10 shows an example of a wireless communication system (e.g., a 5G or NR cellular network) that includes a base station 1020 and one or more user equipment (UE) 1011, 1012 and 1013. In some embodiments, the UEs access the BS (e.g., the network) using a communication link to the network (sometimes called uplink direction, as depicted by dashed arrows 1031, 1032, 1033) , which then enables subsequent communication (e.g., shown in the direction from the network to the UEs, sometimes called downlink direction, shown by arrows 1041, 1042, 1043) from the BS to the UEs. In some embodiments, the BS send information to the UEs (sometimes called downlink direction, as depicted by arrows 1041, 1042, 1043) , which then enables subsequent communication (e.g., shown in the direction from the UEs to the BS, sometimes called uplink direction, shown by dashed arrows 1031, 1032, 1033) from the UEs to the BS. The UE may be, for example, a smartphone, a tablet, a mobile computer, a machine to machine (M2M) device, an Internet of Things (IoT) device, and so on.
[0149] Some of the embodiments described herein are described in the general context of methods or processes, which may be implemented in one embodiment by a computer program product, embodied in a computer-readable medium, including computer-executable instructions, such as program code, executed by computers in networked environments. A computer-readable medium may include removable and non-removable storage devices including, but not limited to, Read Only Memory (ROM) , Random Access Memory (RAM) , compact discs (CDs) , digital versatile discs (DVD) , etc. Therefore, the computer-readable media can include a non-transitory storage media. Generally, program modules may include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. Computer-or processor-executable instructions, associated data structures, and program modules represent examples of program code for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps or processes.
[0150] Some of the disclosed embodiments can be implemented as devices or modules using hardware circuits, software, or combinations thereof. For example, a hardware circuit implementation can include discrete analog and / or digital components that are, for example, integrated as part of a printed circuit board. Alternatively, or additionally, the disclosed components or modules can be implemented as an Application Specific Integrated Circuit (ASIC) and / or as a Field Programmable Gate Array (FPGA) device. Some implementations may additionally or alternatively include a digital signal processor (DSP) that is a specialized microprocessor with an architecture optimized for the operational needs of digital signal processing associated with the disclosed functionalities of this application. Similarly, the various components or sub-components within each module may be implemented in software, hardware or firmware. The connectivity between the modules and / or components within the modules may be provided using any one of the connectivity methods and media that is known in the art, including, but not limited to, communications over the Internet, wired, or wireless networks using the appropriate protocols.
[0151] While this document contains many specifics, these should not be construed as limitations on the scope of an invention that is claimed or of what may be claimed, but rather as descriptions of features specific to particular embodiments. Certain features that are described in this document in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable sub-combination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a sub-combination or a variation of a sub-combination. Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results.
[0152] Only a few implementations and examples are described and other implementations, enhancements and variations can be made based on what is described and illustrated in this disclosure.
Claims
1.A wireless communication method, comprising:detecting, by a wireless device from a network node, an on-demand common signal,wherein a transmission of the on-demand common signal is indicated by an indication signaling.2.A wireless communication method, comprising:transmitting, by a network node to a wireless device, an on-demand common signal,wherein a transmission of the on-demand common signal is indicated by an indication signaling.3.The method of claim 1 or 2, wherein the indication signaling comprises at least one of a radio resource control (RRC) signaling, a downlink (DL) medium access control (MAC) control element (CE) , a downlink control information (DCI) , an uplink (UL) MAC CE, a UL signal, or a UL channel.4.The method of claim 3, wherein the indication signaling indicates a transmission of one or more measurement reports associated with the on-demand common signal.5.The method of claim 1 or 2, wherein a time instance associated with the on-demand common signal is a duration T after an indication slot or an indication symbol corresponding to a transmission time or a reception time of the indication signaling, and wherein T is a non-negative value.6.The method of claim 5, wherein the wireless device starts detecting the on-demand common signal from at least one of:the time instance,a time no earlier than the time instance,a time-domain position corresponding to a first half frame after the time instance,a time-domain position corresponding to a first scheduled transmission time of the on-demand common signal after the time instance, ora time-domain position corresponding to a first actual transmission time of an on-demand common signal burst after the time instance.7.The method of claim 5, wherein T is a predefined value, configured by a radio resource control (RRC) parameter, configured by a system information block (SIB) , or indicated by the indication signaling.8.The method of claim 5, wherein T comprises at least one of a first offset, a second offset, a third offset, or a fourth offset.9.The method of claim 8, wherein the first offset corresponds to a duration between (a) the indication slot or the indication symbol and (b) a slot or a symbol corresponding to a transmission time or a reception time of a hybrid automatic repeat request (HARQ) -acknowledgement (ACK) message.10.The method of claim 9, wherein the transmission time or the reception time of the HARQ-ACK message is a first half frame after the indication signaling.11.The method of any of claims 8 to 10, wherein the first offset is determined by a higher layer parameter, a predefined value, or indicated by a first signaling.12.The method of any of claims 8 to 10, wherein a value of the first offset is a value from a HARQ-ACK value set, and wherein the HARQ-ACK value set is predefined or configured by a higher layer parameter.13.The method of claim 8, wherein the second offset corresponds to a duration between a start point and a reference point.14.The method of claim 13, wherein the start point comprises (a) the indication slot or the indication symbol, (b) a slot or a symbol corresponding to a transmission time or a reception time of a feedback signal associated with the indication signaling, or (c) a time-domain position associated with the third offset.15.The method of claim 13, wherein the reference point is determined based on at least one of a start of a half frame after the indication slot or the indication symbol, the start of the half frame after a slot or a symbol corresponding to a transmission time or a reception time of a feedback signal associated with the indication signaling, a start of a system frame, or a predefined time-domain position.16.The method of claim 8, wherein at least one of the third offset, a start of the third offset, or an end of the third offset is a predefined value, configured by a higher layer parameter, associated with the second offset, or indicated by a first signaling.17.The method of claim 11 or 16, wherein the first signaling comprises at least one of a radio resource control (RRC) signaling, a medium access control (MAC) control element (CE) , or a downlink control information (DCI) .18.The method of claim 11 or 16, wherein the first signaling comprises at least one of a first field indicative of the first offset, a second field indicative of the second offset, a third field indicative of the third offset.19.The method of claim 18, wherein the first field is a bitmap, and wherein each bit in the bitmap maps to a value of a HARQ-ACK value set, and wherein the HARQ-ACK value set is predefined or configured by the higher layer parameter.20.The method of claim 18, wherein the first field is a codepoint that indicates a value index of a HARQ-ACK value set, and wherein the HARQ-ACK value set is predefined or configured by the higher layer parameter.21.The method of claim 8, wherein:a start of the fourth offset is a start of a half frame, orthe start of the fourth offset is a slot boundary of a time-domain position of the on-demand common signal.22.The method of claim 8, wherein an end of the fourth offset is a time-domain position of the on-demand common signal.23.The method of any of claims 1 to 22, wherein the on-demand common signal comprises at least one of a synchronization signal block, a system information block, a secondary synchronization signal, a primary synchronization signal, a synchronization signal, a signal that triggers performing one or more measurements, a signal that triggers the wireless device to switch to an idle / inactive mode, or a signal that triggers the wireless device to switch to a connected mode.24.An apparatus for wireless communication comprising one or more processors, configured to implement the method recited in one or more of claims 1 to 23.25.A non-transitory computer readable program storage medium having code stored thereon, the code, when executed by a processor, causing the processor to implement the method recited in one or more of claims 1 to 23.
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