WO2021030939A1

WO2021030939A1 - Terminal power saving using minimum values of a set of parameters

Info

Publication number: WO2021030939A1
Application number: PCT/CN2019/100999
Authority: WO
Inventors: Xiaoying Ma; Mengzhu CHEN; Hao Wu; Jun Xu; Qiujin GUO
Original assignee: Zte Corporation
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2021-02-25
Also published as: CN114223289A; CN114223289B

Abstract

Methods, systems, and devices related to digital wireless communication, and more specifically, to techniques related to terminal power saving using minimum values of a set of parameters. In one exemplary aspect, a method for wireless communication may include determining, by a communication node, a minimum value for any of a set of parameters based on any of a set of preset information and a high layer configuration signal. The method may also include transmitting, by the communication node, the determined minimum value for any of the set of parameters to a terminal.

Description

TERMINAL POWER SAVING USING MINIMUM VALUES OF A SET OF PARAMETERS

TECHNICAL FIELD

This patent document is directed generally to wireless communications.

BACKGROUND

Mobile communication technologies are moving the world toward an increasingly connected and networked society. The rapid growth of mobile communications and advances in technology have led to greater demand for capacity and connectivity. Other aspects, such as energy consumption, device cost, spectral efficiency, and latency are also important to meeting the needs of various communication scenarios. Various techniques, including new ways to provide higher quality of service, are being discussed.

SUMMARY

This document discloses methods, systems, and devices related to digital wireless communication, and more specifically, to techniques related to terminal power saving using minimum values of a set of parameters.

In one exemplary aspect, a method for wireless communication includes determining, by a communication node, a minimum value for any of a set of parameters based on any of a first set of preset information and a high layer configuration signal. The method also includes transmitting, by the communication node, the determined minimum value for any of the set of parameters to a terminal.

In another exemplary aspect, a method for wireless communication includes receiving, by a terminal, a first message including a minimum value for any of a set of parameters based on any of a first set of preset information and a high layer configuration signal from a communication node via power saving signaling. The method also includes implementing, by the terminal, the set of parameters using the minimum value included in the first message.

In another exemplary aspect, a wireless communications apparatus comprising a processor is disclosed. The processor is configured to implement a method described herein.

In yet another exemplary aspect, the various techniques described herein may be embodied as processor-executable code and stored on a computer-readable program medium.

Some embodiments may preferably implement the following solutions, written in a clause-format.

1. A solution for wireless communication, comprising: determining, by a communication node, a minimum value for any of a set of parameters based on any of a set of preset information and a high layer configuration signal; and transmitting, by the communication node, the determined minimum value for any of the set of parameters to a terminal.

2. The solution of clause 1, wherein the determined minimum value for any of the set of parameters are transmitted from the communication node to the terminal via power saving signaling.

3. The solution of clause 1, wherein the minimum value for any of the set of parameters includes a minimum value of a slot offset between downlink control information (DCI) and a scheduled physical downlink shared channel.

4. The solution of clause 1, wherein the minimum value for any of the set of parameters includes a minimum value of a slot offset between a downlink control information and a scheduled physical uplink shared channel.

5. The solution of clause 1, wherein the minimum value for the set of parameters include a minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information.

6. The solution of clause 1, wherein the minimum value for the set of parameters include a minimum value of slot offset between the triggering DCI and an actual transmission of a SRS resource set.

7. The solution of clause 1, wherein the minimum value for the set of parameters include a minimum value of slot offset between a DCI which triggers an aperiodic sounding reference signal (SRS) and an associated aperiodic channel state information reference signal.

8. The solution of clause 1, wherein the determined minimum value for any of the set of parameters transmitted to the terminal are valid after the first delay, where the first delay is determined according to a second set of preset information.

9. The solution of clause 8, wherein the first delay includes an integer that is greater than or equal to zero and is represented by any of slots, symbols, and milliseconds.

10. The solution of clause 1, wherein transmitting the determined minimum value for any of the set of parameters from the communication node to the terminal via a power saving signaling is indicated by a number of bits in a field of the power saving signaling.

11. The solution of clause 10, wherein if the number of bits in the field of the power saving signaling equals one, one state of a first bit is equal to all of the determined minimum values equaling zero.

12. The solution of clause 10, wherein if the number of bits in the field of the power saving signaling is greater than one, the power saving signaling indicating an index of the determined minimum value for each of the set of parameters.

13. The solution of clause 1, wherein the set of present information includes at least one of: a bandwidth part index, UE assistance information, a terminal discontinuous reception state, UE capability information, a terminal type, a subcarrier space, a configured time domain allocation list.

14. The solution of clause 8, wherein the second set of preset information includes terminal assistance information representing a time for decoding downlink control information reported by the terminal.

15. The solution of clause 8, wherein the second set of preset information includes a latest minimum value.

16. The solution of clause 8, wherein the second set of preset information includes a bandwidth part switching time, and if downlink control information indicates a set of minimum values and triggers a bandwidth part switch, the first delay is associated with the bandwidth part switching time.

17. The solution of clause 5, wherein the minimum value of the slot offset between the physical downlink shared channel and the hybrid automatic repeat request acknowledgement information or the slot offset between downlink control information and the hybrid automatic repeat request acknowledgement information is applied for a downlink control information which require a hybrid automatic repeat request acknowledgement information.

18. The solution of any of clauses 1 and 17, wherein the minimum value for any of the set of parameters including a set of minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information is equal to a minimum value of the slot offset between downlink control information (DCI) and a scheduled physical downlink shared channel .

19. The solution of clause 1, wherein the minimum value includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is indicated by another minimum value included in the set of parameters.

20. The solution of clause 1, wherein a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is configured by radio resource control signaling, where the slot offset is zero if the configured radio resource control signaling is absent.

21. The solution of clause 1, wherein a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is reinterpreted by a minimum value of the set of parameters.

22. The solution of clause 1, further comprising: determining, by the communication node, a valid range of minimum values based on the determined minimum value or a second higher layer configuration information.

23. The solution of clause 22, wherein the second higher layer configuration information includes at least one of a search space, a radio network temporary identifier, a physical downlink shared channel time domain allocation list, a physical uplink shared channel time domain allocation list, a time domain resource, a frequency domain resource, a type of downlink control information.

24. The solution of clause 1, wherein a minimum value for any of the set of parameters configured outside an active time is a value in a first set of minimum values, a minimum value for any of the set of parameters configured within an active time is a value in a second set of minimum values , the first set of minimum values is different from the second set of minimum values.

25. A solution for wireless communication, comprising: receiving, by a terminal, a first message including a minimum value for any of a set of parameters based on any of a set of preset information and a high layer configuration signal from a communication node via power saving signaling; and implementing, by the terminal, the set of parameters using the minimum value included in the first message.

26. The solution of clause 25, wherein the minimum value for any of the set of parameters includes a minimum value of a slot offset between downlink control information and a scheduled physical downlink shared channel.

27. The solution of clause 25, wherein the minimum value for any of the set of parameters includes a minimum value of a slot offset between a downlink control information and a scheduled physical uplink shared channel.

28. The solution of clause 25, wherein the minimum value for the set of parameters include a minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement message or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information.

29. The solution of clause 25, wherein the minimum value for the set of parameters include a minimum value of slot offset between the triggering DCI and an actual transmission of a SRS resource set.

30. The solution of clause 25, wherein the minimum value for the set of parameters include a minimum value of slot offset between a DCI which triggers an aperiodic sounding reference signal (SRS) and an associated aperiodic channel state information reference signal.

31. The solution of clause 25, wherein the terminal determines the minimum value for any of the set of parameters after a first delay according to the second set of preset information, and wherein the first delay includes an integer that is greater than or equal to zero and is represented by any of slots, symbols, and milliseconds.

32. The solution of clause 25, wherein transmitting the determined minimum value for any of the set of parameters from the communication node to the terminal via a power saving signaling is indicated by a number of bits in a field of the power saving signaling.

33. The solution of clause 32, wherein if the number of bits in the field of the power saving signaling equals one, one state of a first bit is equal to all of the determined minimum values equaling zero.

34. The solution of clause 32, wherein if the number of bits in the field of the power saving signaling is greater than one, the power saving signaling indicating an index of the determined minimum value for each of the set of parameters.

35. The solution of clause 25, wherein a minimum value for a first parameter included in the set of parameters is indicated by a minimum value for a second parameter included in the set of parameters representing that the minimum value for the first parameter is equal to the minimum value for the second parameter.

36. The solution of clause 25, wherein the set of present information includes at least one of: a bandwidth part index, a terminal assistance information, a terminal discontinuous reception state, terminal capability information, a terminal type, a subcarrier space, and a set of configured time domain resources.

37. The solution of clause 31, wherein the second set of preset information includes terminal assistance information representing a time for decoding downlink control information reported by the terminal.

38. The solution of clause 31, wherein the second set of preset information includes a latest minimum value.

39. The solution of clause 31, wherein the second set of preset information includes a bandwidth part switching time, and if downlink control information indicates a set of minimum values and triggers a bandwidth part switch, the first delay is associated with the bandwidth part switching time.

40. The solution of clause 28, wherein the minimum value is applied for a downlink control information which require a hybrid automatic repeat request acknowledgement information.

41. The solution of any of clauses 25 and 40, wherein the minimum value for any of the set of parameters including a set of minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information is equal to a minimum value of the slot offset between downlink control information (DCI) and a scheduled physical downlink shared channel.

42. The solution of clause 25, wherein the minimum value includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is indicated by another minimum value included in the set of parameters.

43. The solution of clause 25, wherein a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is configured by radio resource control signaling, where the interval is zero if the configured radio resource control signaling is absent.

44. The solution of clause 25, wherein a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is reinterpreted by a minimum value of the set of parameters.

45. The solution of clause 25, wherein the first message includes an applicable range of the minimum value based on the determined minimum value or a second higher layer configuration information.

46. The solution of clause 45, wherein the second higher layer configuration information includes at least one of a search space, a radio network temporary identifier, a physical downlink shared channel time domain allocation list, a physical uplink shared channel time domain allocation list, a time domain resource, a frequency domain resource, a type of downlink control information.

47. An apparatus for wireless communication comprising a processor that is configured to carry out the solution of any of solutions 1 to 46.

48. A non-transitory computer readable medium having code stored thereon, the code when executed by a processor, causing the processor to implement a solution recited in any of solutions 1 to 46.

The details of one or more implementations are set forth in the accompanying attachments, the drawings, and the description below. Other features will be apparent from the description and drawings, and from the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a block diagram of a minimum value for a set of parameters.

FIG. 2 illustrates a block diagram of various scheduling cross carriers.

FIG. 3 illustrates a block diagram of an example method for terminal power saving using minimum values of a set of parameters.

FIG. 4 shows an example of a wireless communication system where techniques in accordance with one or more embodiments of the present technology can be applied.

FIG. 5 is a block diagram representation of a portion of a hardware platform.

DETAILED DESCRIPTION

Section headings are used in the present document only for ease of understanding and do not limit scope of the embodiments to the section in which they are described. Furthermore, while embodiments are described with reference to 5G examples, the disclosed techniques may be applied to wireless systems that use protocols other than 5G or 3GPP protocols.

The development of the new generation of wireless communication –5G New Radio (NR) communication –is a part of a continuous mobile broadband evolution process to meet the requirements of increasing network demand. NR will provide greater throughput to allow more users connected at the same time. Other aspects, such as energy consumption, device cost, spectral efficiency, and latency are also important to meeting the needs of various communication scenarios.

Overview

With the development of wireless communication technology, various radio communication systems may have improved performance indicators, such as transmission rate, delay, throughput, reliability, etc. However, in order to achieve high-performance wireless communication, a terminal may need to perform relatively complex processing tasks to meet performance requirements. For example, the terminal may detect a large control channel bandwidth, control information, data information encoding, decoding processing, etc. However, the terminal may consume power in performing these processing tasks, which may lower user experience. Accordingly, the present embodiments relate to reducing power consumption of a terminal in a wireless communication system.

In the development of wireless communication technology, saving power consumption of a terminal and achieving a balance between system performance and terminal power consumption under the premise of satisfying certain performance indicators is an important consideration. In many cases, the UE may not know whether a DCI has data scheduling in the current time slot before blindly decoding the DCI, so it may be necessary to continuously buffer the data. Since the current time slot may not have data scheduling, the data may not need to be cached, which may increase power consumption. A power saving technique may include the UE is indicated the minimum value of the K0/k2/A CSI-RS triggering offset by signaling. The k0/k2 indicated to the UE may not be expected to be a number less than the corresponding minimum value. A CSI-RS triggering offset may be implicitly indicated by the k0 minimum value. In this technique, indicating that the minimum value greater than 0 may be equivalent to telling the UE the DCI will not schedule data in the slot which transmit the PDCCH, and the UE may not need to buffer data, thereby saving power. At the same time, the minimum value greater than 0 can make the UE relax the processing timeline, which can also save power.

However, there is no method for determining the minimum value of each parameter, and there is no minimum value action time, which may cause inconsistency between the base station (e.g., gNB) and the UE for the minimum value. For example, the base station may indicate to the UE that the minimum value is 1, but the UE may decode the indication information after 2 slots, and in these two slots, the understanding of the minimum value by the base station and the UE is inconsistent.

System overview

This patent document relates to determining a minimum value, including determining a minimum value action delay, a range of application, etc.

From the perspective of a base station, the base station may determine a minimum value of a set of parameters according to the first preset information and/or the high layer configuration signaling. The base station may send the minimum value of the determined set of parameters to the UE.

The minimum value may be sent to the UE by layer 1 (L1) signaling (e.g., power saving signaling) .

The minimum value of the set of parameters may include at least one of the following: the minimum value of K0 (k0min) , the minimum value of K2 (k2min) , a minimum value of aperiodic SRS offset (SRSmin) , a minimum value of slot offset between a DCI which triggering an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal (offset-csi-min) , a minimum value of K1 (k1min) , a minimum value of aperiodic CSI-RS offset (ACSI-RSmin/aperiodic CSI-RSmin) .

An aperiodic CSI-RS offset may include a slot offset between a triggering downlink control information and an aperiodic non zero power channel state information reference signal (NZP CSI-RS) resources set. Aperiodic SRS offset may include an offset in number of slots between the triggering DCI and the actual transmission of this SRS-ResourceSet.

K0 may include an offset between DCI and its scheduled PDSCH. K2 may include a slot offset between DCI and its scheduled PUSCH. K1 may include a slot offset between PDSCH and the DL ACK or slot offset between DCI and HARQ. K1 may include a value indicated by the PDSCH-to-HARQ-timing-indicator field in the DCI format.

The present embodiments may include determining a minimum value action delay. The base station may determine a minimum value action delay Thred1 according to the second preset information, and the minimum value of the set of parameters which is transmitted to UE may be validated/applied after Thred1. Thred1 may include an integer greater than or equal to 0, and the unit of Thred1 is a slot or symbol or millisecond.

In certain embodiments, the second preset information is a (related) parameter indicating a resource, and at least one of the following: a number of physical resource blocks in the frequency domain, bandwidth part index (BWP ID) , control resource set index (CORESET ID), subcarrier spacing (SCS) , carrier aggregation, frequency range type (FR type) , rank indication value (RI) , number of antenna ports (Port) , a precoding codebook index (PMI) .

In certain embodiments, the second preset information is frequency range type. If the frequency range type is FR 1, Thred1 may be equal to F1, otherwise, Thred1 may be equal to F2. F1 and F2 may be integers greater than 1 and F1 is less than F2.

In further embodiments, the second preset information is carrier aggregation. If the DCI which indicate a minimum value also indicate a cross carrier scheduling, the Thred1 is equal to the minimum time for cross carrier scheduling.

In further embodiments, the second preset information is a parameter of control information and at least one of the following: a search space, a user equipment identity, a parameter in a field of downlink control information (DCI) .

In certain embodiments, the second preset information is a parameter in a field of DCI. If the parameter in a field of DCI is associated with an action delay, the Thred1 is associated with the action delay. Optionally, the Thred1 is equal to the action delay.

In further embodiments, the second preset information refers to a (correlation) parameter of a reference signal and at least one of the following: a channel state information reference signal (CSI-RS) , a demodulation reference signal (DMRS) , a hybrid automatic repeat request acknowledgement signal (HARQ-ACK) , a tracking reference signal (TRS) , a sounding reference signal (SRS) .

In certain embodiments, if the DCI which indicate a minimum value is also trigger an aperiodic CSI-RS or aperiodic SRS, the Thred1 is equal to the slot offset of the aperiodic CSI-RS or aperiodic SRS.

In further embodiments, the second preset information may refer to indication signaling and at least one of the following: radio resource control layer control signaling or layer 3 signaling, intermediate access control layer control information or layer 2 signaling, downlink control information or layer 1 signaling. In certain embodiments, the signaling above may indicate a value of Thred1. In further embodiments, the Thred1 may equal to the action delay of one of the signaling.

In further embodiment, the second preset information may be group specific, where the terminals in the group refers to multiple base stations according to parameters related to a terminal (e.g., a UE) . The terminal (e.g., the UE) may be divided into a group, and the parameters related to the terminal (e.g., the UE) include one of the following: terminal or UE identification information (UE ID) , a cell radio network temporary identification number (C-RNTI) , a priority of a service type. In certain embodiments, the value of Thred1 is different for different group.

The minimum value may be sent to a UE by a L1 (layer 1) signaling, wherein a L1 signaling may include a minimum value (the minimum value of the set of parameters) indication. In some embodiments, a L1 signaling is a power saving signaling. Power saving signaling may be a signaling that includes parameters for techniques of UE power saving. Power saving signaling may be at least one of the following: a new format DCI, an enhancement of existing scheduling DCI formats (e.g., DCI format 0_0, DCI format 0_1, DCI format 1_0, DCI format 1_1) with additional field (s) , an enhancement of existing scheduling DCI formats with re-purposing the existing field (s) .

In some embodiments, the minimum value may be indicated by M bits in one field of the L1 (layer 1) signaling. If M=1, then one state of the bit field may represent that all minimum values are 0, and the other state may represent that all minimum values are equal to I1. I1 may be a positive integer greater than or equal to 1; if M is greater than 1, the L1 signaling may include a value or an index of the minimum value for each parameter.

The minimum value of the parameters (the minimum value of the set of parameters) described above may be implicitly indicated. The minimum value of the first parameter may be implicitly indicated by the signaling which indicates a minimum value of the second parameter. The implicit indication may include that the minimum value of the first parameter is absent, and in some embodiments, a signaling which indicates a minimum value of the second parameter may simultaneously indicate validation of a default minimum value of the first parameter, in some embodiments, a minimum value of a first parameter is equal to a minimum value of a second parameter, in other embodiments, a minimum value of a first parameter is conversed by a minimum value of a second parameter.

The first preset information may include at least one of the following: a bandwidth part index (BWP ID) , UE assistant information, a discontinuous Reception (DRX) state (e.g., outside active time or within active Time) , UE capability information, a terminal type, a subcarrier space (SCS) , a set of configured time domain resources.

A discontinuous reception (DRX) state may include a state outside active time (inactive state) and a state within active time (active state) , wherein active time is the total duration that the UE monitors PDCCH. This includes the "on-duration" of the DRX cycle, the time UE is performing continuous reception while the inactivity timer has not expired, and the time when the UE is performing continuous reception while waiting for a retransmission opportunity. UE do not need to monitor PDCCH outside active time.

The second preset information may include UE assistant information, where a UE assistant information may include a time for decoding DCI Time1 reported by a UE, and action delay Thred1 may be determined according to a decoding DCI time. The time for decoding DCI may include a time for physical downlink control channel (PDCCH) processing or a time for decoding PDCCH or a time for decoding DCI. In some embodiments, Thred1 may be greater than or equal to Time1. and Thred1 may be equal to 1 if the UE does not report the time for decoding DCI Time1 or a minimum value applied for the time slot which receiving the power saving signaling is equal to 0 or the time slot which receiving the power saving signaling is not applied with a minimum value. The time for decoding DCI may include a time for UE decoding DCI when the minimum value of all parameters is greater than zero.

The second preset information may include UE capability, where a UE capability may include a time/capability for decoding DCI Time2 reported by a UE, and action delay Thred1 may be determined according to a time/capability for decoding DCI. In some embodiments, Thred1 may be greater than or equal to Time2. and Thred1 may be equal to 1 if the UE does not report the time/capability for decoding DCI Time2 or a minimum value applied for the time slot which receiving the power saving signaling is equal to 0 or the time slot which receiving the power saving signaling is not applied with a minimum value. The time/capability for decoding DCI may include a UE time/capability for decoding DCI when the minimum value of all parameters is greater than zero.

The second preset information may include a minimum value for the UE to act/apply (latest minimum value) before the power saving signaling which include an indication of minimum values is sent. If there is at least one previously applied minimum value that is greater than the corresponding minimum value indicated by the power saving signaling (e.g., the previous action k0min is greater than the indicated k0min) , then Thred1 may equal to N1. Otherwise, Thred1 may equal to N2. Thred1 may equal to N3 if no minimum value has been previously indicated. N1 may be a positive integer greater than or equal to 1, N2 and N3 may be an integer greater than or equal to 0, and optionally, N3=N2. Optionally, N1 may equal to k0min. Optionally, N1 may equal to N2. Optionally, N1 is associated with the time for decoding DCI.

The second preset information may include a minimum value for the UE to act/applied before the power saving signaling which include an indication of minimum values is sent. If previously applied k0min is greater than k0min indicated by the power saving signaling, then Thred1 may equal to N1. Otherwise, Thred1 may equal to N2. Optionally, Thred1 may equal to N3 if no minimum value has been previously indicated. N1 may be a positive integer greater than or equal to 1, N2 and N3 may be an integer greater than or equal to 0, and optionally, N3=N2. Optionally, N1 may equal to k0min. Optionally, N1 may equal to N2. Optionally, N1 is associated with the time for decoding DCI.

The minimum value of each BWP may be obtained by formula conversion (aUE with a set of minimum values)

The minimum value (e.g., k0min/k2min/k1min/SRSmin/offset-csi-min) may be indicated as the configuration on an activated BWP, the minimum value (e.g., k0min (i) /k2min (i) /k1min (i) /SRSmin (i) /offset-csi-min (i) ) on the BWP (i) may simultaneously be configured. The minimum value may be determined by an activated BWP minimum value (indicated on the k0min/k2min/k1min/SRSmin/offset-csi-min) converted. The conversion relationship Kmin (i) may equal to the operation (Kmin, m) , where Kmin may be one of the following: k0min, k2min, k1min, SRSmin, offset-csi-min wherein m may include a real number, operation may be multiplication, or addition operations.

The m described above may be related to at least one of the following: a BWP SCS and/or a time domain resource (TimeDomainAllocationList TDRA) configured on BWP. The TDRA may include PDSCH-TDRA and PUSCH-TDRA. PDSCH-TDRA may include a high-level configuration or a default table. Each row (Index) in the table may correspond to a set of parameters (k0, etc. ) . The DCI with data scheduling may contain a field indicating the index of the TDRA, and the index value may indicate the k0 value. PUSCH-TDRA may include a high-level configuration or a default table. Each row (Index) in the table may correspond to a set of parameters (k2, etc. ) . The DCI with data scheduling may contain a field indicating the index of the TDRA, and the index value may indicate the k2 value.

In a cross-carrier scheduling mode, the minimum value of the set of parameters may indicate on the scheduling component carrier (scheduling CC) , the minimum value of the scheduled component carrier (scheduled CC) may be implicitly indicated according to a minimum value on the scheduling component carrier.

A minimum value of K1 can be bound to other parameters. The minimum value (K1min) indicating may be applied for at least a downlink control information (DCI) which requiring a Hybrid automatic repeat request acknowledgement (HARQ-ACK) information. The K1min may be implicitly indicated by a minimum value of other parameters described above, implicitly indicating represent that K1min is equal to a minimum value of another parameter. (Example: k1min=k0min) .

Affiliation between aperiodic SRS and aperiodic CSI-RS. The minimum value (offset-csi-min) of the interval between a DCI which triggers an aperiodic SRS and an associated aperiodic channel state information reference signal (ACSI-RS) may be implicitly indicated by another minimum value in the parameter set (e.g., offset-csi-min = k0min) . The aperiodic CSI-RS (Channel state information reference signal) associated with the aperiodic SRS may be received at least offset-csi-min units after receiving the the DCI which triggers the aperiodic SRS. The offset-csi-min may be an integer greater than or equal to 0, and the unit may be a slot or a millisecond or a symbol.

A parameter (offset-csi) indicate an offset between a DCI which triggers an aperiodic sounding reference signal (aperiodic SRS) and an associated aperiodic CSI-RS may be configured by RRC (radio resource control) , and if absent, the default may be 0.

A parameter (offset-csi) of an offset between a DCI which triggers an aperiodic sounding reference signal (aperiodic SRS) and an associated aperiodic CSI-RS may be reinterpreted by the minimum value of one parameter. Reinterpreted may represent that the value of parameter is reset equal to the minimum value (e.g., offset-csi=k0min) .

The method may also include the base station determining an applicable (valid) range of the minimum value based on the determined minimum value and/or the second higher layer configuration information.

From the perspective of the terminal, the terminal (or UE) may receive L1 signaling (e.g., power saving signaling) from a base station and indicate a minimum value of a set of parameters. The minimum value may be determined by the first preset information and/or the high layer configuration information.

The minimum value of the set of parameters may include at least one of the following: the minimum value of K0 (k0min) , the minimum value of K2 (k2min) , a minimum value of aperiodic SRS offset (SRSmin) , a minimum value of slot offset between a DCI which triggering an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal (offset-csi-min) , a minimum value of K1 (k1min) , a minimum value of aperiodic CSI-RS offset (A CSI-RSmin/aperiodic CSI-RSmin) .

The method may include the minimum value being effective after Thred1 units receiving L1 signaling, Thred1 may include an integer greater than or equal to 0, and the unit of Thred1 may be a slot or a symbol or a millisecond. The Thred1 may be determined by the base station according to the second preset information.

The power saving signaling that the UE receives may include the M bit in one field of the signaling indicating and indicate a minimum value for a set of parameters. If M=1, then one state of the bit field may represent that all minimum values are 0, and the other state may represent that all minimum values are equal to I1. I1 may be a positive integer greater than or equal to 1; if M is greater than 1, the L1 signaling may include a value or an index of the minimum value for each parameter.

The first preset information may include at least one of the following: a BWP ID, UE assistant information, a discontinuous Reception (DRX) state (e.g., outside active time or within active Time) , UE capability information, a terminal type, a subcarrier space (SCS) , a set of configured time domain resources.

The second preset information may include UE assistant information or UE capability information, where a UE assistant information or a UE capability information may include a time for decoding DCI Time1 reported by a UE, and action delay Thred1 may be determined according to a decoding DCI time. In some embodiments, Thred1 may be greater than or equal to Time1. and Thred1 may be equal to 1 if the UE does not report the time for decoding DCI Time1 or a minimum value applied for the time slot which receiving the power saving signaling is equal to 0 or the time slot which receiving the power saving signaling is not applied with a minimum value. The time for decoding DCI may include a time for UE decoding DCI when the minimum value of all parameters is greater than zero.

The second preset information may include a latest minimum value. If there is at least one previously applied minimum value that is greater than the corresponding minimum value indicated by the power saving signaling (e.g., the previous action k0min is greater than the indicated k0min) , then Thred1 may equal to N1. Otherwise, Thred1 may equal to N2. Thred1 may equal to N3 if no minimum value has been previously indicated. N1 may be a positive integer greater than or equal to 1, N2 and N3 may be an integer greater than or equal to 0, and optionally, N3=N2. Optionally, N1 may equal to k0min. Optionally, N1 may equal to N2. Optionally, N1 is associated with the time for decoding DCI.

The minimum value (k0min/k2min/k1min/SRSmin/offset-csi-min) may be indicated as the configuration on an activated BWP (A) , then the minimum value (k0min (i) /k2min (i) /k1min (i) /SRSmin (i) /offset-csi-min (i) ) on the BWP (i) may be determined by convert by a minimum value indicated on BWP (A) . The conversion relationship Kmin (i) may equal operation (Kmin, m) , where Kmin may be one of the following: k0min, k2min, k1min, SRSmin, offset-csi-min wherein m may include a real number, operation may be multiplication, or addition operations.

The m described above may be related to at least one of the following: a BWP SCS, and a time domain resource configuration TimeDomainAllocationList (TDRA) on the BWP.

The minimum value (K1min) may be applied for at least a DCI which requiring a HARQ-ACK information. The K1min may be implicitly indicated by a minimum value of other parameters described above, implicitly indicating represent that K1min is equal to a minimum value of another parameter. (Example: k1min=k0min) .

The minimum value (offset-csi-min) of the interval between a DCI which triggers an aperiodic SRS and an associated aperiodic CSI-RS may be implicitly indicated by another minimum value in the parameter set (e.g., offset-csi-min = k0min) . The aperiodic CSI-RS associated with the aperiodic SRS may be received at least offset-csi-min units after receiving the the DCI which triggers the aperiodic SRS. The offset-csi-min may be an integer greater than or equal to 0, and the unit may be a slot or a millisecond or a symbol.

A parameter (offset-csi) indicate an offset between a DCI which triggers an aperiodic SRS and an associated aperiodic CSI-RS may be configured by RRC, and if absent, the default may be 0.

A parameter (offset-csi) indicate an offset between a DCI which triggers an aperiodic SRS and an associated aperiodic CSI-RS may be reinterpreted by the minimum value of one parameter. (e.g., offset-csi=k0min)

The method may include the terminal determining an applicable (valid) range of the minimum value based on the minimum value indicated by the signaling and/or the second higher layer configuration information.

If the minimum value receiving by the terminal is 0, the minimum value may not have an invalid range. otherwise, the terminal may determine the minimum value application range in combination with the high layer configuration information.

The second high layer configuration information may include at least one of the following: a search space, a Radio Network Temporary Identifier (RNTI) , a pdsch -TimeDomainAllocationList (PDSCH-TDRA) , a pusch -TimeDomainAllocationList (PUSCH-TDRA) , a time domain resource, a frequency domain resource, a type of downlink control information.

The high-level configuration information may include PDSCH-TDRA, and the terminal may determine an applicable (valid) range of the minimum value according to the minimum value indicated by the signaling and the high-level configuration information. If the high layer is not configured with a pdsch-TDRA or the high-level configured a pdsch-TDRA which the number of entries with a k0 greater than or equal to k0min is less than or equal to Thred3, then the minimum value may be invalid (not applicable/invalid) , wherein Thred3 may be an integer greater than or equal to 0 and less than or equal to 8. Otherwise, the minimum value may be valid.

The high-level configuration information may include PUSCH-TDRA, and the terminal may determine an applicable (valid) range of the minimum value according to the minimum value indicated by the signaling and the high-level configuration information. If the high layer is not configured with a pusch-TDRA or the high-level configured a pusch-TDRA which the number of entries with a k2 greater than or equal to k2min is less than or equal to Thred4, then the minimum value may be invalid (not applicable/invalid) , wherein Thred4 may be an integer greater than or equal to 0 and less than or equal to 8. Otherwise, the minimum value may be valid.

A method may further include the UE reporting a decoding DCI time/capability, wherein a decoding DCI time/capability is the time UE used to decode a DCI, a decoding DCI time/capability units of time slots or symbols or milliseconds. If the UE does not report the decoding DCI capability, the default value of decoding DCI time may be less than 1 time slot.

Example Embodiment 0

Example Embodiment 0 may relate to a minimum value setting of various setting values, a delay of action, etc.

The base station may determine a minimum value of a set of parameters according to the first preset information and/or the high layer configuration signaling (high layer configuration information) , and the base station may send the minimum value of the determined set of parameters to the UE by power saving signaling.

High-Level Configuration Signaling

The high-level configuration signaling may indicate an optional value of a minimum value of each parameter.

If the high-level configuration signaling is configured and the minimum value indicated by the first preset information is within the optional value indicated by the high-level configuration signaling, the minimum value may be configured according to the value indicated by the first preset information. If the high-level configuration signaling is configured and the minimum value indicated by the first preset information is not within the optional value indicated by the high layer configuration signaling, the minimum value may be configured according to the value indicated by the high layer configuration signaling. If the high-level configuration signaling is not configured, the minimum value of each parameter may be determined according to the first preset information. Otherwise, the minimum value of each parameter may be determined according to the high-level configuration signaling.

First Preset Information

Optionally, the first preset information may include a DRX state in which the UE is located, and the DRX state may be a state of outside active time (inactive state/outside active state) and a state of within active time (active state) , wherein active time is total duration that the UE monitors PDCCH. This includes the "on-duration" of the DRX cycle, the time UE is performing continuous reception while the inactivity timer has not expired, and the time when the UE is performing continuous reception while waiting for a retransmission opportunity. UE do not need to monitor PDCCH outside active time.

Optionally, a minimum value for any of the set of parameters configured outside an active time may be a value in a first minimum value set, a minimum value for any of the set of parameters configured within an active time may be a value in a second minimum value set, the first minimum value set may be different from the second minimum value set. For example, the first minimum value set may include integers ranging from greater than or equal to 0 to less than or equal to M1, the second minimum value set may include an integer range from greater than or equal to 0 to less than or equal to M2. Optionally, M1 may equal to 1, and optionally, M2 may equal to 24.

In other words, each of the minimum values of active state (or within active time) and outside active state (or outside active time, or inactive state) may have a different value range. The minimum value of k0 outside active state may range from greater than or equal to 0 to less than or equal to M1, and the minimum value of k0 within active state may range from greater than or equal to 0 to less than or equal to M2. Optionally, M1 may equal to 1, and optionally, M2 may equal to 24.

Optionally, the minimum value set of each parameter configured by high-level configuration information may be different minimum value between outside active time and within active time. The high-layer configuration signaling can be different between outside active time and within active time. For example, outside active time the high-layer configuration signaling (e.g., RRC signaling) indicate one set of minimum values. Within active time the high-layer configuration signaling (e.g., RRC signaling) may indicate multiple sets of minimum values.

Optionally, a power saving signaling which is within an active state or inactive state may use different number of bits in a field to indicate a minimum value of a set of parameters. In inactive state, a power saving signaling may use M3 bits to indicate the minimum value, and in active state, a power saving signaling may use M4 bits to indicate the minimum value. In one embodiment, M3 may equal to 1, and one state of the bit field may represent to all minimum values is 0, and the other state is that all minimum values are equal to I1, I1 may be a positive integer greater than or equal to 1.

In other embodiments, I1 may be equal to a default minimum value, wherein the default minimum value is configured by RRC. Optionally, I1 may be configured by the RRC configuration. Optionally, the power saving signaling in active state may use M4 bits in a field to indicate the minimum value, optionally M4=Num2, wherein Num2 may be a positive integer greater than or equal to 2 and less than or equal to 8, and a power saving signaling may indicate a minimum value of each parameter or the index of the minimum value. Alternatively, Num2 is determined by the number of minimum values or the number of indexes of a set of minimum values (e.g., a minimum value set index number is 32, then Num2=log ₂32=5) .

Optionally, the minimum value indicated by the power saving signaling in active state may be related to the minimum value indicated by the power saving signaling in outside active state. The minimum value indicated by the power saving signaling in active state may be greater than or equal to the minimum value indicated by the power saving signaling in outside active state. For example, the power saving signaling in outside active state may be use 1 bit in a field to indicate the minimum value, status ‘0’ represents that the minimum value is 0, and status ‘1’ represents that the minimum value is a default value, wherein the default value is I2, and I2 is an integer greater than or equal to 1. If the power saving signaling in outside active state indicate minimum value is 0, in the corresponding DRX cycle, the minimum value indicated by power saving signaling in an active time may be greater than or equal to 0. Otherwise, the minimum value indicated by power saving signaling in an active time may be greater than or equal to I2.

Optionally, if outside active time does not indicate a minimum value, the default minimum value may be 0.

Optionally, outside active time may indicate a minimum value of a part of the parameters, and the minimum value of the other parameters is implicitly indicated by a minimum value of a part of the parameters. For example, outside active time only indicates K0min, then K1min=k0min, k2min=k0min+ deta, where deta may be an integer greater than or equal to 0, SRSmin=k0min.

Alternatively, the first preset information may be a sub-carrier spacing. The maximum possible value of the minimum value of each parameter may increase as the subcarrier spacing increase. For example, SCS=15kHZ, the maximum value of the minimum value of parameter k0 is 2. In this example, when SCS=120kHz, the maximum value of minimum value of parameter k0 is 6.

Optionally, the first preset information may be the UE assistance information, and the high-level configuration signaling may be a minimum value optional set of each parameter. the UE assistance information may be an expected minimum value of parameters reported by the UE. The base station may determine the minimum value of each parameter by combining the UE assistance information and the high layer configuration information. For example, the expected k0min is I3 reported by the UE, and the optional set of k0min indicated by the high layer configuration signaling includes I3, then k0min=I3. If the optional set of k0min indicated by the high layer configuration signaling does not include I3, then determine a k0min according to the high layer configuration, wherein I3 is an integer greater than or equal to zero.

Optionally, the first preset information may be a configured time domain resource set (PDSCH-TDRA, PUSCH-TDRA) , and the determination of K0min may need to satisfy condition 1, where condition 1 is the number of items in the PDSCH-TDRA, where k0 is greater than or equal to k0min, which may be greater than Thred3, where Thred3 may be an integer greater than or equal to 0 and less than or equal to 8. The determination of K2min may need to satisfy condition 2, where condition 2 is that the number of items of k2 greater than or equal to k2min in PUSCH-TDRA is greater than Thred4, where Thred4 may be an integer greater than or equal to 0 and less than or equal to 8.

Optionally, the first preset information may include a UE type. If the UE is a NR light (lite) type, the minimum value may be greater than or equal to 1 and less than or equal to M5. Otherwise, the minimum value may be greater than or equal to 0 and less than or equal to M5, and M5 may be a positive integer less than or equal to 32.

Optionally, the first preset information may be a UE capability. If a UE can be configured with a minimum value greater than zero, the minimum value may be greater than or equal to 1 and less than or equal to M5. Otherwise, the minimum value may be greater than or equal to 0 and less than or equal to M5, and M5 may be a positive integer less than or equal to 32.

Minimum value for a Set of Parameters

The minimum value of a set of parameters may include at least a minimum value of the parameter K0 and/or a minimum value of the parameter k2. Alternatively, if a first minimum value of the parameter is not be indicated and it can be implicitly indicated by a second minimum value of parameter. Implicit indication is that if the first minimum value may not be transmitted and a second minimum value is transmitted, in some embodiments, a first minimum value may be equal to a second minimum value (for example, a base station does not transmit K1min and/or SRS minimum value, then K1min = K2min, SRSmin = K2min) . In other embodiments, a first minimum value of parameter is converted by the second minimum value (e.g., k2min is not transmitted, then k2min = k0min + DETA, where DETA is greater than or equal 0 integer) . Optionally, SRSmin is associated with k0min, for example, SRSmin = k0min +S1, where S1 is an integer greater than zero.

Action Delay

The base station may determine an action delay Thred1 according to a second preset information, a set of minimum value transmitted by power saving signaling is valid after Thred1 time. Thred1 may be an integer greater than or equal to 0, and the unit of Thred1 may be a slot or symbol or millisecond.

In other words, the UE may receive a signaling indicate a minimum value in slot n, before the slot n + Thred1, the minimum value indicated by the signaling is invalid, and a UE may not expect receive a scheduling signaling indicating a k0 value greater than the k0min act before slot n-1.

The second preset information may include at least one of the following: a SCS, a BWP switching time, UE assistance information, a minimum value act in the slot before transmitting a power saving signaling which indicate a minimum value (latest minimum value) , a delay of the other power-saving techniques information, a UE capability.

Optionally, the second preset information may be a minimum value that is valid before a set of minimum value indicated by a power saving signaling, and if a minimum value that is valid before the signaling is greater than a corresponding minimum value indicated by the signaling, then Thred1=N1, otherwise, Thred1=N2. Optionally, if no minimum value has been previously indicated, Thred1=N3. N1 may be a positive integer greater than or equal to 1, and N2 and N3 are integers greater than or equal to 0, optionally, N3=N2. Optionally, N1=k0min. Optionally, N1=N2. Optionally, N1 is associated with the time for decoding DCI.

Optionally, the second preset information may include a minimum value for the UE to act/applied before the power saving signaling which include an indication of minimum values is sent. If previously applied k0min is greater than k0min indicated by the power saving signaling, then Thred1 may equal to N1. Otherwise, Thred1 may equal to N2. Thred1 may equal to N3 if no minimum value has been previously indicated. N1 may be a positive integer greater than or equal to 1, N2 and N3 may be an integer greater than or equal to 0, and optionally, N3=N2. Optionally, N1 may equal to k0min. Optionally, N1 may equal to N2. Optionally, N1 is associated with the time for decoding DCI.

Optionally, the second preset information is UE assistance information. Optionally, the UE assistance information may be a decoding DCI time Time1 reported by the UE, and Thred1 may be greater than or equal to Time1. If the UE does not report the decoding DCI time Time1 or the minimum value applied in the slot which receiving the power saving signaling is equal to 0 or the UE may not be configured with a set of minimum value before the receiving the power saving signaling, Thred1 may be equal to T1, and T1 may be an integer greater than or equal to 0 (e.g., T1=1) . Optionally, the UE assistance information may be a preset power saving level, and different power saving levels may correspond to different action delays Thred1. For example, the power saving level is divided into modeA and modeB. Among them, modeA corresponds to Thred1=S3, and ModeB may correspond to Thred1=S4. Among them, S1 and S2 may be integers greater than or equal to 0.

Optionally, the UE capability may be a preset power saving level report by UE, and different power saving levels may correspond to different action delays Thred1. For example, the power saving level is divided into modeA and modeB. Among them, modeA corresponds to Thred1=S3, and ModeB may correspond to Thred1=S4. Among them, S1 and S2 may be integers greater than or equal to 0.

Optionally, the second preset information may be a minimum value that is valid before the slot in which receiving a power saving signaling and a subcarrier space (SCS) . If at least one parameter that is valid before the slot in which receiving a power saving signaling may be greater than the corresponding minimum value indicated in the power saving signaling. The minimum value action delay Thred1 for the minimum values indicated by the signaling may be determined according to the SCS of the PDCCH which indicating the minimum value (e.g., SCS=15kHZ, Thred1=S1; SCS=120kHZ, Thred1=S2, and S1 and S2 are integers greater than or equal to 0, and S1<S2) , where the configuration of the relationship of SCS and Thred1 is configured by RRC; otherwise, Thred1=1.

Optionally, the second preset information may be a BWP switching time, and a minimum value action delay Thred1 may be smaller than or equal to a BWP switching time.

Optionally, the second preset information may be a BWP switching time, and if a DCI indicate a set of minimum values and simultaneously trigger a BWP switch, Thred1 is equal to the BWP switching delay.

Optionally, the second preset information may be a subcarrier spacing (SCS) and UE assistance information or UE capability information. If the UE reports the decoding DCI time, Thred1 is greater than or equal to the reported decoding DCI time; otherwise, Thred1 may be determined according to the SCS (e.g., SCS=15kHZ, Thred1=1; SCS=120kHZ, Thred1=3) , wherein the configuration of the relationship of Thred1 and SCS is RRC configuration.

Optionally, the second preset information may be an action delay of a power saving signaling which indicate a set of minimum value, and the action delay of the minimum value is less than or equal to the action delay of the signaling.

Alternatively, the second information may indicate an action delay of a MIMO layers parameter. If the signaling which indicating the minimum value simultaneously indicates the number of MIMO layers, the action delay of the minimum value may be related to the action delay of the MIMO layer parameter. Optionally, the action delay of the minimum value is equal to max (action delay of minimum value, action delay of MIMO layer parameter) . Optionally, the action delay of the minimum value may be equal to the action delay of MIMO layer parameter. Optionally, the action delay of the minimum value is equal to min (action delay of minimum value, action delay of MIMO layer parameter) .

Optionally, the second preset information may be an action delay of other power saving technique information. If a signaling indicating a minimum value simultaneously indicates other power saving technique information parameters (e.g., wake-up indication, MIMO parameter, PDCCH monitoring period, PDCCH skipping, SCell, BWP switching) , the action delay of the minimum value may be determined according to an action delay of other power-saving information parameters. Optionally, the action delay of the minimum value may be equal to one of the action delays of other power saving technique parameters. Optionally, the action delay of the minimum value may be less than or equal to max (action delay of minimum value, action delay of other power saving information) . Optionally, the action delay of the minimum value may be equal to max (action delay of minimum value, action delay of other power saving information) .

The minimum value of parameter can be used to reinterpret the parameter value if the parameter value is less than the corresponding minimum value. Reinterpreting may be that the value of parameter can be reset to be equal to the corresponding minimum value. For example: a DCI trigger an aperiodic SRS resource set. And the parameter of aperiodic SRS offset is less than the minimum value of aperiodic SRS offset, so the aperiodic SRS offset is reinterpreted as the minimum value of aperiodic SRS offset. Aperiodic SRS offset is an offset in number of slots between the triggering DCI and the actual transmission of this SRS-ResourceSet.

Example Embodiment 1

A first Example Embodiment may relate to a BWP minimum value setting. Optionally, the base station may determine a set of minimum value according to the high-level configuration signaling and/or first preset information and sending a set of minimum value to a UE by using the power-saving signaling. The minimum value of the set of parameters (k0min/k2min/k1min/SRSmin/offset-csi-min) may indicate the configuration on an activated BWP, and the minimum value on the other BWP (i) configured by the UE (k0min (i) /k2min (i) /k1min (i) /SRSmin (i) ) being implicit indication that obtained by a conversion on the minimum value of BWP, wherein a conversion is Kmin (i) = Operation (Kmin, m) , wherein Kmin is one of the following: k0min, k2min, k1min, SRSmin, offset-csi-min, Kmin (i) is one of the following: k0min (i) , k2min (i) , k1min (i) , SRSmin (i) , offset-csi-min (i) , m is a real number, operation may be multiplication or addition operations (e.g., Kmin (i) =Kmin*m, Kmin (i) =Kmin+m) .

Optionally, m may be related to a SCS of BWP (e.g.,

) .

Optionally, the m value may be related to a time domain resource configuration TDRA (TimeDomainAllocationList) on a BWP. (e.g.,

where min (k0 /or k2) (BWP (i) ) represents the minimum k0 or minimum k2 value in the configured TDRA on BWP (i) .

Optionally, m may be a set of optional valuesconfigured by RRC.

Optionally, the minimum value of a set of parameters that the base station determines and sends to the UE may be configured per UE, in another word, the minimum value is a same value for any BWP configured for a UE. If the number of items which with k0 greater than or equal to k0min in the PDSCH-TDRA configured on the BWP (i) is less than or equal to N1, wherein N1 may be a positive integer less than 10, or the number of items which with k2 greater than or equal to k2min in the PUSCH-TDRA configured on the BWP (i) is less than or equal to N2, wherein N2 may be a positive integer less than 10, in some embodiments, the minimum value indicated is a failure indication (invalid) . in some embodiments, the minimum value indicated is a failure indication (invalid) , and the minimum value of each parameter may be set to 0. In some embodiments, the UE may send a request to the base station requesting to resend a new set of minimum value. in some embodiments, the base station may not schedule data on the BWP(i) . In some embodiment, a new set of minimum values is indicated in the DCI triggering the BWP (i) , wherein the new set of minimum values include a new k2min and the number of entries in PUSCH-TDRA configured on BWP (i) which may be greater than or equal to k2min is greater than N2 and/or a new k0min and the number of entries in PDSCH-TDRA configured on BWP(i) which may be greater than or equal to k0min is greater than N1. In other embodiments, the base station may indicate a set of new minimum value after switching to the BWP (i) .

The base station according to a first preset information and/or high layer configuration signaling may determine a set of minimum values, and the base station may send the set of minimum value to a UE.

The minimum value may be sent to a UE by L1 signaling (e.g., power saving signaling) .

Alternatively, when the BWP switch occur (e.g., BWP0 switch to BWP1) , if the BWP switching is based on a medium access control element (MAC CE) indication or BWP inactivity timer expiring or the BWP switching is based on a DCI trigger and the DCI does not indicate a new set of minimum value.

The set of minimum value on the new BWP may be set to one of the following:

After Switching BWP, the new set of minimum value is transmitted by a base station in Nth slot. N may be a positive integer greater than or equal to 1. A set of minimum value for each parameter may be 0 applied before the new set of minimum value is applied.

After switching BWP, a default set of minimum value is valid if the BWP is configured with a default set of minimum value. Otherwise, the minimum value may be 0.

Optionally, when a BWP switch occurs (e.g., BWP0 switches to BWP1) , if in the slot of a DCI indicates a BWP switch and a new minimum value or a set of minimum value indicated is not applied, in some embodiments, the action delay of the minimum value is less than or equal to the BWP switching delay (BWP switch delay) , a set of minimum value is valid in new BWP. Otherwise, the minimum value is invalid in new BWP, and if the new BWP configured with a default set of minimum value for each parameter, the set of minimum value in new BWP is equal to the default set of minimum value, otherwise, the set of minimum value may be 0.

Optionally, when a BWP switch occurs (e.g., BWP0 switches to BWP1 ) , if a DCI indicates a BWP switch and a new minimum value or a set of minimum value indicated is not applied in the slot of the DCI which trigger the BWP switch minimum value, if the action delay is greater than a BWP switching delay (BWP switch delay) , then in the new BWP, the minimum value may be determined to one of the following:

(1) If a default set of minimum value is configured on the new BWP, the default set of minimum value may be applied until the set of minimum value indicated by DCI is valid. Otherwise, the set of minimum value may be 0 until the set of minimum value indicated by the DCI is valid.

(2) The minimum value of each parameter may be 0 until the minimum value indicated by DCI is valid.

(3) The base station may not schedule data one the BWP until the minimum value indicated by the DCI is valid.

(4) The minimum value indicated by the DCI may be invalid.

Optionally, the minimum value of the set of parameters may be applied to the currently activated BWP. When a BWP switch occurs, the minimum value for all parameters may invalid.

The default minimum value may be configured by RRC. Optionally, the default minimum value may be a parameter configured on a BWP. Optionally, the default minimum value may not be configured.

Example Embodiment 2

A base station may determine a set of minimum value according to the high-level configuration signaling and/or first preset information and send a set of minimum value to a UE. The set of minimum value may be sent to a UE by a L1 (layer 1) signaling (e.g., power saving signaling) .

The minimum value of the set of parameters may include any of: the minimum value of K0 (k0min) , the minimum value of K2 (k2min) , a minimum value of aperiodic SRS offset (SRSmin) , a minimum value of slot offset between a DCI which triggering an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal (offset-csi-min) , a minimum value of K1 (k1min) .

Among them, the minimum value of all parameters may be greater than 0.

The base station and/or terminal may determine an applicable (valid) range of the minimum value based on the determined minimum value and the second higher layer configuration information.

Optionally, the base station and/or terminal may determine an invalid range of the minimum value based on the determined minimum value and the second higher layer configuration information.

Optionally, the second high layer configuration information may indicate a type of downlink control information.

The K1min may only be used for a downlink control information (DCI) with CS-RNTI scrambling and may indicate release semi-persistent PDSCH (SPS PDSCH) . In other words, the UE may not expect to receive a DCI which indicating the release of the SPS PDSCH include a K1 less than K1min. That is, if the UE receiving a PDCCH with an indication to release SPS PDSCH at time slot n, it may transmit HARQ-ACK feedback after or in the time slot n + K1min.

Optionally, the second high layer configuration information may indicate a type of DCI. If a DCI which activated a SPS PDSCH, the set of minimum value may invalid until base station receives an ACK of a DCI which release a SPS PDSCH. Optionally, the invalid may start from N slots after a DCI which activated a SPS PDSCH, where N is the action delay.

Optionally, the second high layer configuration information may indicate a type of downlink control information. The K1min may be applied for the DCI which require a HARQ feedback.

Optionally, the second high layer configuration information indicate a type of downlink control information. The K1min may be applied for at least a DCI with CS-RNTI scrambling and may indicate release of semi-persistent PDSCH (SPS PDSCH) .

Optionally, the second high layer configuration information may indicate a type of downlink control information. The K1min may be only applied for a DCI with CS-RNTI scrambling and may indicate release of semi-persistent PDSCH (SPS PDSCH) .

Optionally, the K1min may be applied for a DCI with C-RNTI or CS-RNTI or MCS-C-RNTI scrambling after receiving a DCI activated a SPS PDSCH and before receiving a DCI release a SPS PDSCH.

Optionally, the K1min may be applied for at least a DCI with C-RNTI or CS-RNTI or MCS-C-RNTI scrambling . Optionally, the K1min may be applied at least for a DCI which is C-RNTI or CS-RNTI or MCS-C-RNTI scrambling and configured with a UE specific search space (UESS) .

Optionally, the K1min may be related to K0min (e.g., K1min=K0min) . Optionally, the K1min may implicitly indicated by the k0min, and the base station may not transmit k1min to the UE, k1min value may be indicated by k0min. Optionally, the K1min may be related to k2min. Optionally, the K1min may implicitly indicated by the k2min, and the base station may not transmit k1min to the UE, the k1min value may be indicated by k2min.

Example Embodiment 3

A base station may determine a set of minimum value according to the high-level configuration signaling and/or first preset information and sending a set of minimum value to a UE. The set of minimum value may be sent to a UE by a L1 (layer 1) signaling (e.g., power saving signaling) .

The base station/terminal may determine an applicable (valid) range of the minimum value based on the determined minimum value and the second higher layer configuration information.

The second high layer configuration information includes at least one of the following: (1) a search space, (2) a RNTI, (3) a PDSCH -TimeDomainAllocationList (PDSCH-TDRA) , (4) a PUSCH -TimeDomainAllocationList (PUSCH-TDRA) , (5) a time domain resource, (6) a frequency domain resource, (7) a type of downlink control information.

Optionally, the second high-level configuration information may be PDSCH-TDRA, and the applicable (effective/valid) range of the minimum value may be determined according to the minimum value indicated by the signaling and the second high-level configuration information. If the higher level does not configure a pdsch-TDRA or high-level configure a pdsch-TDRA in which the number of k0 which is greater than or equal to the k0min is less than or equal Thred3, the minimum value may be a failure (NA/invalid) , wherein Thred3 may be an integer greater than or equal to 0 and less than or equal to 8. Otherwise, the minimum value may be valid.

Optionally, the second high-level configuration information may be PUSCH-TDRA, and the applicable (effective/valid) range of the minimum value may be determined according to the minimum value indicated by the signaling and the second high-level configuration information. If the higher level does not configure a pusch-TDRA or high-level configure a pusch-TDRA in which the number of k2 which is greater than or equal to the k2min indicated is less than or equal Thred4, the minimum value may be a failure (NA/invalid) , wherein Thred4 may be an integer greater than or equal to 0 and less than or equal to 8. Otherwise, the minimum value may be valid.

Optionally, the second high-level configuration information may be a search space type. The set of minimum values may not apply to time slots in which the high (higher) layer is configured with a common search space set. The common search space set may be a Type0-PDCCH CSS (common search space) set, a Type0A-PDCCH CSS set, a Type1-PDCCH CSS set, a Type2-PDCCH CSS set, and/or a Type3-PDCCH CSS set.

Optionally, the second high-level configuration information may be a search space type. Optionally, the set of minimum values may not be applicable to a common search space set configured by high level signaling.

Optionally, the second high-level configuration information may be a search space type. Optionally, the set of minimum values may only be applicable to a UE-specific search space. That is, the set of minimum values may be only valid in a UE-specific search space.

Optionally, the second high layer configuration information may be PDSCH-TDRA information. If the high (higher) layer does not configure a pdsch-TDRA, a set of minimum values may be invalid. Otherwise, the minimum value of the set of parameters may be valid.

Optionally, the second high-level configuration information may be a search space. When the common search space configured overlaps with the UE-specific search space on the time domain or the frequency domain resource, the minimum value of the set of parameters may be invalid for the overlap region.

Example Embodiment 4

FIG. 1 illustrates a block diagram 100 of a minimum value for a set of parameters.

A base station may determine a set of minimum value according to the high-level configuration signaling and/or first preset information and sending a set of minimum value to a UE. The set of minimum value may be sent to a UE by a L1 (layer 1) signaling (e.g., power saving signaling) . The minimum value of the set of parameters may include any of: the minimum value of K0 (k0min) , the minimum value of K2 (k2min) , a minimum value of aperiodic SRS offset (SRSmin) , a minimum value of slot offset between a DCI which triggering an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal (offset-csi-min) , a minimum value of K1 (k1min) , a minimum value of slot offset between a triggering downlink control information and an aperiodic non zero power channel state information reference signal (NZP CSI-RS) resources set (A CSI-RSmin) . Among them, the minimum value of all parameters may be greater than 0.

UE may implement a set of parameters using the minimum value received.

The UE may be configured with an aperiodic SRS (aperiodic sounding reference signal) associated with an aperiodic CSI-RS (Aperiodic NZP CSI-RS Resource) , the associated CSI-RS is received by the offset-csi units after the DCI which triggers aperiodic SRS. offset-csi is a parameter configured by RRC and indicate a offset between a DCI which triggers aperiodic SRS and an associated CSI-RS. Offset-csi may include a positive integer greater than or equal to 0, and the offset-csi unit is a time slot or symbol or millisecond.

A communication node may determine whether to receive the CSI-RS, and whether to update the SRS precoding information according to the offset-csi. The method may be one of the following:

Optionally, if the offset-csi value is greater than or equal to k0min or A CSI-RSmin and less than A SRS offset, the UE may receive the CSI-RS; otherwise, the UE may not expect to receive the CSI-RS. Specifically, if the offset-csi value is greater than or equal to k0min or A CSI-RSmin and the offset between the last symbol of the received CSI-RS and the first symbol of the transmitted SRS is greater than 42 symbols, the SRS precoding information may be updated. A SRS offset is an offset in number of slots between the triggering DCI and the actual transmission of this SRS-ResourceSet. A CSI-RSmin is a minimum value of slot offset between a triggering downlink control information and an aperiodic non zero power channel state information reference signal (NZP CSI-RS) resources set.

Optionally, if the offset-csi value is greater than or equal to a threshold offset-csi-min and less than A SRS offset, wherein offset-csi-min is a positive integer greater than 0, the UE may receive the CSI-RS, otherwise, the UE may not expect to receive the CSI-RS. A SRS offset is an offset in number of slots between the triggering DCI and the actual transmission of this SRS-ResourceSet.

Optionally, the offset-csi may be a parameter that is configured by the RRC in the SRS-Config information element. The offset-csi may be a parameter in the aperiodic SRS-ResourceSet in the SRS-Config information element.

Optionally, the offset-csi may be a parameter set configured by RRC, the actual CSI-RS is received after N3 slots receiving the PDCCH (Physical Downlink Control Channel) . wherein N3 is the minimum value in the offset-csi list which is greater than the offset-csi-min. If offset-csi-min is absent, N3 is equal to 0.

The offset-csi value is related to at least one of the following: A SRS offset (e.g., offset-csi= A SRS offset -X, where X is a positive integer greater than 0) , K0min or A CSI-RSmin (for example: offset-csi is greater than or equal to k0min or A CSI-RSmin) , K2min (for example: offset-csi= k2min) . in some embodiment the offset-csi value is not configured, if the UE is indicated with a minimum value greater than 0, the default may be 1; otherwise the default may be 0.

Optionally, the offset-csi value may be related to the k0min or A CSI-RSmin, if the UE is indicated by the k0min or A CSI-RSmin, then offset-csi=k0min or A CSI-RSmin; otherwise the offset-csi value may be configured by RRC.

Optionally, the offset-csi value may be related to the k0min or A CSI-RSmin, if the UE is indicated by the k0min or A CSI-RSmin, then offset-csi=k0min or A CSI-RSmin; otherwise it may be 0.

Optionally, the minimum value of the set of parameters indicated by the base station may include offset-csi-min, offset-csi-min is a minimum value of offset-csi. Wherein, offset-csi-min may be an integer greater than or equal to 0, and the unit is a time slot or a millisecond or a symbol. Optionally, the minimum value of the offset-csi may be indicated by a power saving signaling. Optionally, a minimum value of offset-csi (offset-csi-min) may be implicit indication, that is offset-csi-min is not indicated in power saving signaling and offset-csi-min is the same as k0min (offset-csi-min=k0min) .

Optionally, a minimum value (offset-csi-min) of the minimum offset between a DCI which trigger an aperiodic SRS and an associated aperiodic CSI-RS may be implicitly indicated by other minimum values. Wherein, offset-csi-min may be an integer greater than or equal to 0, and the unit is a time slot or a millisecond or a symbol.

Optionally, the offset-csi value of offset between a DCI which trigger an aperiodic SRS and an associated aperiodic CSI-RS may be reinterpreted by a minimum value indicated by the signaling (e.g., offset-csi=k0min) . The value of parameter can be reset to be equal to the corresponding minimum value. Optionally, the offset-csi value of offset between a DCI which trigger an aperiodic SRS and an associated aperiodic CSI-RS may be configured by RRC, and if absent, the default may be 0.

Example Embodiment 5

The base station may determine a given set of parameters of a minimum value according to a first preset information and/or high layer configuration signal, and the minimum value of a set of parameters determined by the base station may be sent to the UE. Among them, the minimum value of all parameters may be greater than 0.

The base station may determine an applicable (valid) range of the minimum value based on the determined minimum value and the second higher layer configuration information.

Optionally, the second high-level configuration information may be: a time domain resource A1 configured by high layers to transmit SRS, or PUCCH, or PUSCH, or PRACH (Physical random access channel) , a time domain resource A2 configured by higher layers to receive a CSI-RS or a PDSCH, a time domain resource B and frequency domain resource B configured to detect the SFI-RNTI, DCI format 0_0, DCI format 0_1, DCI format 1_0, DCI format 1_1, or DCI format 2_3 , wherein the time domain resource B is before the time domain resource A1 or A2. And the slot offset between time domain resource B and time domain resource A1 or A2 is less than or equal to 32.

Optionally, the second high-level configuration information is a time domain resource A1 or A2, if the time domain resource A1 or A2 is configured, the minimum value of all parameters may be not applicable (valid) in the time domain resource B and the frequency domain resource B.

Optionally, the second high-level configuration information is a time domain resource A1 or A2, if the time domain resource A1 or A2 is configured, the minimum value of all parameters may be not applicable (valid) in a slot which include the time domain resource B and frequency domain resource B.

Optionally, the second high-level configuration information is a time domain resource A1 or A2, if the time domain resource A1 or A2 is configured, the minimum value of all parameters may be not applicable (valid) minimum value in a search space where the time domain resource B and the frequency domain resource B are located.

Optionally, the second high-level configuration information is a time domain resource A1 or A2, if the time domain resource A1 or A2 is configured, the decoding DCI time is less than N slot, wherein N is an integer greater than or equal to 0.

Optionally, the second high-level configuration information is a time domain resource A1 or A2, if the time domain resource A1 or A2 is configured to transmitting or receiving data, the minimum value of all parameters does not apply (valid) before finishing the transmission, the minimum value for all parameters may be valid after finishing the transmission.

UE may implement a set of parameters using the minimum value received.

Optionally, a UE may configured by high layers to transmit SRS, or PUCCH, or PUSCH, or PRACH, then the UE may not expect to cancel the transmission in symbols from the subset of symbols that occur, relative to a last symbol of a CORESET where the UE detects the DCI format 2_0 or the DCI format 1_0 or the DCI format 1_1 or the DCI format 0_1, after a number of symbols that is smaller than T2. T2 may be greater than or equal to a PUSCH preparation time for the corresponding PUSCH processing capability. Optionally, T2 may be associated with k0min. Optionally, T2 may be associated with DCI decoding time. The UE may cancel the PUCCH, or PUSCH, or PRACH transmission in remaining symbols from the set of symbols and cancels the SRS transmission in remaining symbols from the subset of symbols.

Example Embodiment 6

The base station may determine a given set of parameters of a minimum value according to a first preset information and/or high layer configuration signal, and the minimum value of a set of parameters determined by the base station may be sent to UE.

Among them, the minimum value of all parameters may be greater than 0.

The UE may support cross carrier scheduling, the minimum value of the set of parameters being a configuration on a scheduling component carrier (scheduling CC) .

FIG. 2 illustrates a block diagram 200 of various scheduling carriers.

Optionally, a minimum value on other scheduled component carriers (scheduled CCs) that the scheduling component carrier can schedule is implicitly indicated by a minimum value indicated on the scheduling component carrier. The UE may not expect to receive a scheduling request that is less than a minimum value. The implicit indication may be to determine a set of minimum values on the scheduled component carrier based on a set of minimum values configured on the scheduling component carrier. The set of parameters of a minimum value (k0min/k2min/k1min/SRSmin/offset-csi-min) may indicate a scheduling component carrier the CC (A) configuration, then other scheduled component carrier the CC (I) a minimum value on (k0min (I) /k2min (I) /k1min (I) /SRSmin (I) /offset-csi-min (I) ) is determined by convert minimum value set on the scheduling component carriers, the convert method is Kmin (I) = Operation (Kmin, M) , wherein, Kmin may be one of the following: k0min, k2min, k1min, SRSmin, offset-csi-min, M may be real number, and operation may be a multiplication or addition operation (e.g., Kmin (I) =Kmin*M, Kmin (I) =Kmin+M) .

Optionally, M may be related to a SCS of a component carrier (e.g.,

) .

Optionally, the minimum value (k0min/k2min/k1min/SRSmin/offset-csi-min) may be indicated as a configuration on a certain scheduling component carrier and the minimum value is greater than 0. If the DCI indicates cross-carrier scheduling, then UE may not expect to receive a PDSCH on a scheduled component carrier within the time corresponding to k0min after receiving the PDCCH (calculated in the SCS of the scheduling component carrier) . If the DCI indicates cross-carrier scheduling, the UE may not expect to transmit a PUSCH on a scheduled component carrier within the time corresponding to k2min after receiving the PDCCH (calculated in the SCS of the scheduling carrier unit) . If the DCI indicates cross-carrier scheduling, the UE may not expect to transmit or receive a data within the time corresponding to k0min after receiving the PDCCH (calculated in the SCS of the scheduling component carrier) .

Example Embodiment 7

The UE reporting capability timeDurationForQCL, timeDurationForQCL may be the number of required OFDM symbols for the UE to complete the PDCCH reception and apply (configure) the received spatial domain QCL information.

The base station may determine a given set of parameters of a minimum value according to a first preset information and/or high layer configuration signal, and the minimum value of a set of parameters determined by the base station may be sent to the UE.

UE may implement a set of parameters using the minimum value received.

Optionally, if the minimum value of the indicated set of parameters is greater than 0, the timeDurationForQCL may be converted. For example: timeDurationForQCL may be associated with k0min, timeDurationForQCL=timeDurationForQCL+k0min*N, wherein N is a positive integer greater than 0. If the minimum value of a set of parameters is equal to 0 or does not indicate a minimum value, timeDurationForQCL may be unchanged. In this embodiment, N is equal to 14.

Optionally, if the minimum value of the indicated set of parameters is greater than 0, and the decoding DCI time Time1 reported by the UE is greater than 1 slot, the timeDurationForQCL may be converted. For example: timeDurationForQCL = timeDurationForQCL + Time1*N, wherein N is a positive integer greater than 0. Wherein, Time1 units of slots. Otherwise, timeDurationForQCL may not change. In this embodiment, N is equal to 14.

Optionally, if the minimum value of the indicated set of parameters is greater than 0, the timeDurationForQCL may be associated with k2min (e.g., timeDurationForQCL = k2min) . Optionally, the timeDurationForQCL may be associated with DCI decoding time. Optionally, the timeDurationForQCL may be converted by timeDurationForQCL = timeDurationForQCL + T1, where T1 may be an integer greater than 0.

Example Embodiment 8

The base station may determine a given set of parameters of a minimum value according to a first preset information and/or high layer configuration signal, and the minimum value of a set of parameters determined by the base station may be sent to the UE. UE may implement a set of parameters using the minimum value received.

The minimum value of the set of parameters may be greater than 0.

Optionally, the base station may indicate a BWP switch triggered by a DCI, UE will complete the BWP switch in the bwpSwitchingDelay+deta1 after receiving the triggering DCI. BwpSwitchingDelay may be the BWP switching delay (BWP switch delay) , and deta1 may be an integer greater than or equal to 0. Optionally, deta1=k0min.

Optionally, if the base station expects to indicate a BWP switch triggered by a DCI, and the indicated k0min>0 or k0min is greater than the BWP switch delay, the base station may first re-indicate a set of minimum values by using power saving signaling, where at least k0min is included in a set of minimum values. The k0min may be less than or equal to the BWP switching delay. And then transmit the DCI which trigger a BWP switch,

Optionally, if the base station expect to indicate a BWP switch triggered by a DCI, and the decoding DCI time reported by the UE is greater than or equal to the BWP switch delay, the base station may first re-indicate a set of minimum values by using power saving signaling before transmit the DCI which trigger a BWP switch, where a set of minimum values may be equal to 0. And then transmit the DCI which trigger a BWP switch.

Example Embodiment 9

The minimum value of the set of parameters may include at least K0min and k2min, and k0min and k2min may be both greater than 0.

The minimum value of the set of parameters may be validated by Thred1 units, where Thred1 may be an integer greater than or equal to 0, and the unit of Thred1 may be a slot or a symbol or a millisecond.

Optionally, the UE receives a minimum value of a set of parameters indicated by the base station, if the number of K0 greater than or equal to k0min in the PDSCH-TDRA table configured by the high layer of the activated BWP may be less than or equal to Thred3, then the minimum value may be invalid, where Thred3 may be an integer greater than or equal to 0 and less than or equal to 8.

Optionally, the UE receives a minimum value of a set of parameters indicated by the base station, if the number of K2 greater than or equal to k2min in the PUSCH-TDRA table configured by the high layer of the activated BWP may be less than or equal to Thred4, then the minimum value may be invalid, where Thred4 may be an integer greater than or equal to 0 and less than or equal to 8.

Optionally, the UE may receive a minimum value of a set of parameters indicated by the base station, if the number of K0 greater than or equal to k0min in the PDSCH-TDRA table configured by high layer of the activated BWP may be less than or equal to Thred3 or the number of K2 greater than or equal to k2min in the PUSCH-TDRA table configured by high layer of the activated BWP may be less than or equal to Thred4. Optionally, the indicated minimum value may be invalid, and the minimum value of each parameter may be set to 0. Optionally, the UE may send a request to the base station for a new minimum value. Optionally, the base station may not schedule data on the BWP.

Optionally, the UE may receive the minimum value of a set of parameters, if the active BWP is not configured a PDSCH-TDRA table by RRC or a default PDSCH-TDRA is used. Alternatively, the minimum value may be invalid, and a minimum value of each parameter may be set to 0.

Optionally, the UE may receive the minimum value a set of parameters, if the active BWP is not configured a PUSCH-TDRA table by RRC or a default PUSCH-TDRA is used. Alternatively, the minimum value may be invalid, and a minimum value of each parameter may be set to 0.

FIG. 3 illustrates a block diagram 300 of a method for terminal power saving using minimum values of a set of parameters. The method may include determining, by a communication node, a minimum value for any of a set of parameters based on any of a set of preset information and a high layer configuration signal (block 302) . The method may also include transmitting, by the communication node, the determined minimum value for any of the set of parameters to a terminal (block 304) .

In some embodiments, the determined minimum value for any of the set of parameters are transmitted from the communication node to the terminal via power saving signaling.

In some embodiments, the minimum value for any of the set of parameters includes a minimum value of a slot offset between downlink control information (DCI) and a scheduled physical downlink shared channel.

In some embodiments, the minimum value for any of the set of parameters includes a minimum value of a slot offset between a downlink control information and a scheduled physical uplink shared channel.

In some embodiments, the minimum value for the set of parameters include a minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information.

In some embodiments, the minimum value for the set of parameters include a minimum value of slot offset between the triggering DCI and an actual transmission of a SRS resource set.

In some embodiments, the minimum value for the set of parameters include a minimum value of slot offset between a DCI which triggers an aperiodic sounding reference signal (SRS) and an associated aperiodic channel state information reference signal.

In some embodiments, the determined minimum value for any of the set of parameters transmitted to the terminal are valid after the first delay, where the first delay is determined according to a second set of preset information.

In some embodiments, the first delay includes an integer that is greater than or equal to zero and is represented by any of slots, symbols, and milliseconds.

In some embodiments, transmitting the determined minimum value for any of the set of parameters from the communication node to the terminal via a power saving signaling is indicated by a number of bits in a field of the power saving signaling.

In some embodiments, if the number of bits in the field of the power saving signaling equals one, one state of a first bit is equal to all of the determined minimum values equaling zero.

In some embodiments, if the number of bits in the field of the power saving signaling is greater than one, the power saving signaling indicating an index of the determined minimum value for each of the set of parameters.

In some embodiments, the set of present information includes at least one of: a bandwidth part index, UE assistance information, a terminal discontinuous reception state, UE capability information, a terminal type, a subcarrier space, a configured time domain allocation list.

In some embodiments, the second set of preset information includes terminal assistance information representing a time for decoding downlink control information reported by the terminal.

In some embodiments, the second set of preset information includes a latest minimum value.

In some embodiments, the second set of preset information includes a bandwidth part switching time, and if downlink control information indicates a set of minimum values and triggers a bandwidth part switch, the first delay is associated with the bandwidth part switching time.

In some embodiments, the minimum value of the slot offset between the physical downlink shared channel and the hybrid automatic repeat request acknowledgement information or the slot offset between downlink control information and the hybrid automatic repeat request acknowledgement information is applied for a downlink control information which require a hybrid automatic repeat request acknowledgement information.

In some embodiments, the minimum value for any of the set of parameters including a set of minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information is equal to a minimum value of the slot offset between downlink control information (DCI) and a scheduled physical downlink shared channel .

In some embodiments, wherein the minimum value includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is indicated by another minimum value included in the set of parameters.

In some embodiments, wherein a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is configured by radio resource control signaling, where the slot offset is zero if the configured radio resource control signaling is absent.

In some embodiments, a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is reinterpreted by a minimum value of the set of parameters.

In some embodiments, the method includes determining, by the communication node, a valid range of minimum values based on the determined minimum value or a second higher layer configuration information.

In some embodiments, the second higher layer configuration information includes at least one of a search space, a radio network temporary identifier, a physical downlink shared channel time domain allocation list, a physical uplink shared channel time domain allocation list, a time domain resource, a frequency domain resource, and a type of downlink control information.

In some embodiments, a minimum value for any of the set of parameters configured outside active time is a value in the first minimum value set, a minimum value for any of the set of parameters configured within active time is a value in the second minimum value set, the first minimum value set may be different from the second minimum value set.

In another embodiment, a method for wireless communications comprises receiving, by a terminal, a first message including a minimum value for any of a set of parameters based on any of a set of preset information and a high layer configuration signal from a communication node via power saving signaling; and implementing, by the terminal, the set of parameters using the minimum value included in the first message.

In some embodiments, the minimum value for any of the set of parameters includes a minimum value of a slot offset between downlink control information and a scheduled physical downlink shared channel.

In some embodiments, the minimum value for the set of parameters include a minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement message or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information.

In some embodiments, the terminal determines the minimum value for any of the set of parameters after a first delay according to the second set of preset information, and wherein the first delay includes an integer that is greater than or equal to zero and is represented by any of slots, symbols, and milliseconds.

In some embodiments, a minimum value for a first parameter included in the set of parameters is indicated by a minimum value for a second parameter included in the set of parameters representing that the minimum value for the first parameter is equal to the minimum value for the second parameter.

In some embodiments, the set of present information includes at least one of: a bandwidth part index, a terminal assistance information, a terminal discontinuous reception state, terminal capability information, a terminal type, a subcarrier space, and a set of configured time domain resources.

In some embodiments, the minimum value is applied for a downlink control information which require a hybrid automatic repeat request acknowledgement information.

In some embodiments, the minimum value for any of the set of parameters including a set of minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information is equal to a minimum value of the slot offset between downlink control information (DCI) and a scheduled physical downlink shared channel.

In some embodiments, the minimum value includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is indicated by another minimum value included in the set of parameters.

In some embodiments, a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is configured by radio resource control signaling, where the interval is zero if the configured radio resource control signaling is absent.

In some embodiments, the first message includes an applicable range of the minimum value based on the determined minimum value or a second higher layer configuration information.

In some embodiments, the second higher layer configuration information includes at least one of a search space, a radio network temporary identifier, a physical downlink shared channel time domain allocation list, a physical uplink shared channel time domain allocation list, a time domain resource, a frequency domain resource, a type of downlink control information.

FIG. 4 shows an example of a wireless communication system where techniques in accordance with one or more embodiments of the present technology can be applied. A wireless communication system 400 can include one or more base stations (BSs) 405a, 405b, one or

more wireless devices

410a, 410b, 410c, 410d, and a core network 425. A

base station

405a, 405b can provide wireless service to

wireless devices

410a, 410b, 410c and 410d in one or more wireless sectors. In some implementations, a

base station

405a, 405b includes directional antennas to produce two or more directional beams to provide wireless coverage in different sectors.

The core network 425 can communicate with one or

more base stations

405a, 405b. The core network 425 provides connectivity with other wireless communication systems and wired communication systems. The core network may include one or more service subscription databases to store information related to the subscribed

wireless devices

410a, 410b, 410c, and 410d. A first base station 405a can provide wireless service based on a first radio access technology, whereas a 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 according to the deployment scenario. The

wireless devices

410a, 410b, 410c, and 410d can support multiple different radio access technologies. In some embodiments, the

base stations

405a, 405b may be configured to implement some techniques described in the present document. The wireless devices 410a to 410d may be configured to implement some techniques described in the present document.

In some implementations, a wireless communication system can include multiple networks using different wireless technologies. A dual-mode or multi-mode wireless device includes two or more wireless technologies that could be used to connect to different wireless networks.

FIG. 5 is a block diagram representation of a portion of a hardware platform. The communication node as described in the present application may include the hardware platform as described with respect to FIG. 5. A hardware platform 505 such as a network device or a base station or a wireless device (or UE) can include processor electronics 510 such as a microprocessor that implements one or more of the techniques presented in this document. The hardware platform 505 can include transceiver electronics 515 to send and/or receive wired or wireless signals over one or more communication interfaces such as antenna 520 or a wireline interface. The hardware platform 505 can implement other communication interfaces with defined protocols for transmitting and receiving data. The hardware platform 505 can include one or more memories (not explicitly shown) configured to store information such as data and/or instructions. In some implementations, the processor electronics 510 can include at least a portion of the transceiver electronics 515. In some embodiments, at least some of the disclosed techniques, modules or functions and network nodes are implemented using the hardware platform 505.

From the foregoing, it will be appreciated that specific embodiments of the presently disclosed technology have been described herein for purposes of illustration, but that various modifications may be made without deviating from the scope of the invention. Accordingly, the presently disclosed technology is not limited except as by the appended claims.

The disclosed and other embodiments, modules and the functional operations described in this document can be implemented in digital electronic circuitry, or in computer software, firmware, or hardware, including the structures disclosed in this document and their structural equivalents, or in combinations of one or more of them. The disclosed and other embodiments can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a computer readable medium for execution by, or to control the operation of, data processing apparatus. The computer readable medium can be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of matter effecting a machine-readable propagated signal, or a combination of one or more them. The term “data processing apparatus” encompasses all apparatus, devices, and machines for processing data, including by way of example a programmable processor, a computer, or multiple processors or computers. The apparatus can include, in addition to hardware, code that creates an execution environment for the computer program in question, e.g., code that constitutes processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more of them. A propagated signal is an artificially generated signal, e.g., a machine-generated electrical, optical, or electromagnetic signal, that is generated to encode information for transmission to suitable receiver apparatus.

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 it can be deployed in any form, including 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 in a portion 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 coordinated files (e.g., files that store one or more modules, sub programs, or portions of code) . A computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network.

The processes and logic flows described in this document can be performed by one or more programmable processors executing one or more computer programs to perform functions by operating on input data and generating output. The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit) .

Processors suitable for the execution of a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive 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 performing instructions and one or more memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto optical disks, or optical disks. However, a computer need not have such devices. Computer readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices, e.g., EPROM, EEPROM, and flash memory devices; magnetic disks, e.g., internal hard disks or removable disks; magneto optical disks; and CD ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.

While this patent document contains many specifics, these should not be construed as limitations on the scope of any invention or of what may be claimed, but rather as descriptions of features that may be specific to particular embodiments of particular inventions. Certain features that are described in this patent 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 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. 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.

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 patent document.

Claims

A method for wireless communication, comprising:

determining, by a communication node, a minimum value for any of a set of parameters based on any of a set of preset information and a high layer configuration signal; and

transmitting, by the communication node, the determined minimum value for any of the set of parameters to a terminal.
The method of claim 1, wherein the determined minimum value for any of the set of parameters are transmitted from the communication node to the terminal via power saving signaling.
The method of claim 1, wherein the minimum value for any of the set of parameters includes a minimum value of a slot offset between a downlink control information (DCI) and a scheduled physical downlink shared channel.
The method of claim 1, wherein the minimum value for any of the set of parameters includes a minimum value of a slot offset between a downlink control information and a scheduled physical uplink shared channel.
The method of claim 1, wherein the minimum value for the set of parameters include a minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between a downlink control information and a hybrid automatic repeat request acknowledgement information.
The method of claim 1, wherein the minimum value for the set of parameters include a minimum value of slot offset between the triggering DCI and an actual transmission of a sounding reference signal (SRS) resource set.
The method of claim 1, wherein the minimum value for the set of parameters include a minimum value of slot offset between a DCI which triggers an aperiodic sounding reference signal (SRS) and an associated aperiodic channel state information reference signal.
The method of claim 1, wherein the determined minimum value for any of the set of parameters transmitted to the terminal are valid after the first delay, where the first delay is determined according to a second set of preset information.
The method of claim 8, wherein the first delay includes an integer that is greater than or equal to zero and is represented by any of slots, symbols, and milliseconds.
The method of claim 1, wherein transmitting the determined minimum value for any of the set of parameters from the communication node to the terminal via a power saving signaling is indicated by a number of bits in a field of the power saving signaling.
The method of claim 10, wherein if the number of bits in the field of the power saving signaling equals one, one state of a first bit is equal to all of the determined minimum values equaling zero.
The method of claim 10, wherein if the number of bits in the field of the power saving signaling is greater than one, the power saving signaling indicating an index of the determined minimum value for each of the set of parameters.
The method of claim 1, wherein the set of present information includes at least one of: a bandwidth part index, UE assistance information, a terminal discontinuous reception state, UE capability information, a terminal type, a subcarrier space, a configured time domain allocation list.
The method of claim 8, wherein the second set of preset information includes UE assistance information representing a time for decoding downlink control information reported by the terminal.
The method of claim 8, wherein the second set of preset information includes a latest minimum value.
The method of claim 8, wherein the second set of preset information includes a bandwidth part switching time, and if downlink control information indicates a set of minimum values and triggers a bandwidth part switch, the first delay is associated with the bandwidth part switching time.
The method of claim 5, wherein the minimum value of the slot offset between the physical downlink shared channel and the hybrid automatic repeat request acknowledgement information or the slot offset between downlink control information and the hybrid automatic repeat request acknowledgement information is applied for a downlink control information which requires a hybrid automatic repeat request acknowledgement information.
The method of any of claims 1 and 17, wherein the minimum value for any of the set of parameters including a set of minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information is equal to a minimum value of the slot offset between downlink control information (DCI) and a scheduled physical downlink shared channel.
The method of claim 1, wherein the minimum value includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is indicated by another minimum value included in the set of parameters.
The method of claim 1, wherein a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is configured by radio resource control signaling, where the offset is zero if the configured radio resource control signaling is absent.
The method of claim 1, wherein a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is reinterpreted by a minimum value of the set of parameters.
The method of claim 1, further comprising:

determining, by the communication node, a valid range of minimum values based on the determined minimum value or a second higher layer configuration information.
The method of claim 22, wherein the second higher layer configuration information includes at least one of: a search space, a radio network temporary identifier, a physical downlink shared channel time domain allocation list, a physical uplink shared channel time domain allocation list, a time domain resource, a frequency domain resource, a type of downlink control information.
The method of claim 1, wherein a minimum value for any of the set of parameters configured outside an active time is a value in a first set of first minimum values, a minimum value for any of the set of parameters configured within the active time is a value in a second set of minimum values, the first set of minimum values is different from the second set of minimum value.
A method for wireless communication, comprising:

receiving, by a terminal, a first message including a minimum value for any of a set of parameters based on any of a set of preset information and a high layer configuration signal from a communication node via power saving signaling; and

implementing, by the terminal, the set of parameters using the minimum value included in the first message.
The method of claim 25, wherein the minimum value for any of the set of parameters includes a minimum value of a slot offset between a downlink control information and a scheduled physical downlink shared channel.
The method of claim 25, wherein the minimum value for any of the set of parameters includes a minimum value of a slot offset between a downlink control information and a scheduled physical uplink shared channel.
The method of claim 25, wherein the minimum value for the set of parameters include a minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information.
The method of claim 25, wherein the minimum value for the set of parameters include a minimum value of slot offset between the triggering DCI and an actual transmission of a SRS resource set.
The method of claim 25, wherein the minimum value for the set of parameters include a minimum value of slot offset between a DCI which triggers an aperiodic sounding reference signal (SRS) and an associated aperiodic channel state information reference signal.
The method of claim 25, wherein the terminal determines the minimum value for any of the set of parameters after a first delay according to the second set of preset information, and wherein the first delay includes an integer that is greater than or equal to zero and is represented by any of slots, symbols, and milliseconds.
The method of claim 25, wherein transmitting the determined minimum value for any of the set of parameters from the communication node to the terminal via a power saving signaling is indicated by a number of bits in a field of the power saving signaling.
The method of claim 32, wherein if the number of bits in the field of the power saving signaling equals one, one state of a first bit is equal to all of the determined minimum values equaling zero.
The method of claim 32, wherein if the number of bits in the field of the power saving signaling is greater than one, the power saving signaling indicating an index of the determined minimum value for each of the set of parameters.
The method of claim 25, wherein a minimum value for a first parameter included in the set of parameters is indicated by a minimum value for a second parameter included in the set of parameters representing that the minimum value for the first parameter is equal to the minimum value for the second parameter.
The method of claim 25, wherein the set of present information includes at least one of: a bandwidth part index, a terminal assistance information, a terminal discontinuous reception state, terminal capability information, a terminal type, a subcarrier space, a set of configured time domain resources.
The method of claim 31, wherein the second set of preset information includes terminal assistance information representing a time for decoding downlink control information reported by the terminal.
The method of claim 31, wherein the second set of preset information includes a latest minimum value.
The method of claim 31, wherein the second set of preset information includes a bandwidth part switching time, and if downlink control information indicates a set of minimum values and triggers a bandwidth part switch, the first delay is associated with the bandwidth part switching time.
The method of claim 28, wherein the minimum value is applied for a downlink control information which require a hybrid automatic repeat request acknowledgement information.
The method of any of claims 25 and 40, wherein the minimum value for any of the set of parameters including a set of minimum value of a slot offset between a physical downlink shared channel and a hybrid automatic repeat request acknowledgement information or a slot offset between downlink control information and a hybrid automatic repeat request acknowledgement information is equal to a minimum value of the slot offset between downlink control information (DCI) and a scheduled physical downlink shared channel.
The method of claim 25, wherein the minimum value includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is indicated by another minimum value included in the set of parameters.
The method of claim 25, wherein a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is configured by radio resource control signaling, where the offset is zero if the configured radio resource control signaling is absent.
The method of claim 25, wherein a set of parameters includes an offset between downlink control information which triggers an aperiodic sounding reference signal and an associated aperiodic channel state information reference signal that is reinterpreted by a minimum value of the set of parameters.
The method of claim 25, wherein the first message includes an applicable range of the minimum value based on the determined minimum value or a second higher layer configuration information.
The method of claim 45, wherein the second higher layer configuration information includes at least one of: a search space, a radio network temporary identifier, a physical downlink shared channel time domain allocation list, a physical uplink shared channel time domain allocation list, a time domain resource, a frequency domain resource, a type of downlink control information.
An apparatus for wireless communication comprising a processor that is configured to carry out the method of any of methods 1 to 46.
A non-transitory computer readable medium having code stored thereon, the code when executed by a processor, causing the processor to implement a method recited in any of methods 1 to 46.