CN113475030B

CN113475030B - Method, device, equipment and medium for determining uplink channel transmission mode

Info

Publication number: CN113475030B
Application number: CN201980092883.4A
Authority: CN
Inventors: 徐婧; 林亚男
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2023-09-26
Anticipated expiration: 2039-07-31
Also published as: CN113475030A; WO2021016968A1

Abstract

The application relates to a method, a device, equipment and a medium for determining an uplink channel transmission mode, belonging to the field of mobile communication. The method comprises the following steps: when resources of at least two uplink channels overlap in the time domain, determining a time interval between at least one downlink channel corresponding to the at least two uplink channels and a time domain position of a reference resource; determining the uplink channel transmission mode according to the relation between the time interval and the processing capacity of the target User Equipment (UE); the target UE processing capability is one of at least two UE processing capabilities supported by the terminal.

Description

Method, device, equipment and medium for determining uplink channel transmission mode

Technical Field

The present application relates to the field of mobile communications, and in particular, to a method, an apparatus, a device, and a medium for determining an uplink channel transmission mode.

Background

In a new air interface (NR) system, in order to reduce demodulation interference when a user equipment (UserEquipment, UE) transmits in an uplink, when there are two physical uplink control channels (Physical Uplink Control Channel, PUCCH) that overlap in time domain transmission, two transmission modes are supported:

1. Only one PUCCH is reserved for transmission;

2. UCI multiplexing in two PUCCHs is transmitted on the new PUCCH.

For the 2 nd multiplexing transmission method, in order to ensure that the UE has enough processing time to multiplex UCI information domain data information, the two PUCCHs must meet a fixed timing requirement to enable multiplexing. The timing requirements are related to the processing power of the UE.

Since the UE in the NR system can support at least two UE processing capabilities at the same time, how to multiplex uplink control information for the UE supporting at least two UE processing capabilities is a technical problem yet to be solved.

Disclosure of Invention

The embodiment of the application provides a method, a device, equipment and a medium for determining an uplink channel transmission mode, which can solve the problem of how to multiplex and transmit uplink control information by UE supporting at least two UE processing capacities. The technical scheme is as follows:

according to one aspect of the present application, there is provided a method for determining an uplink channel transmission mode, the method comprising:

when resources of at least two uplink channels overlap in the time domain, determining a time interval between at least one downlink channel corresponding to the at least two uplink channels and a time domain position of a reference resource;

Determining the uplink channel transmission mode according to the relation between the time interval and the processing capacity of the target UE; the target UE processing capability is one of at least two UE processing capabilities supported by the terminal.

According to an aspect of the present application, there is provided a method for selecting resources of an uplink channel, the method comprising:

when there are at least two uplink channel resources overlapping in time domain, selecting a target resource used when the multiplexing transmission mode is adopted from the at least two uplink channel resources.

According to an aspect of the present application, there is provided an apparatus for determining an uplink channel transmission mode, the apparatus comprising:

a mode determining module, configured to determine a time interval between a time domain position of at least one downlink channel corresponding to at least two uplink channels and a reference resource when resources of the at least two uplink channels overlap in a time domain; determining the uplink channel transmission mode according to the relation between the time interval and the processing capacity of the target User Equipment (UE); the target UE processing capability is one of at least two UE processing capabilities supported by the terminal.

According to an aspect of the present application, there is provided a resource selection apparatus of an uplink channel, the apparatus comprising:

And the selection module is used for selecting a target resource used when a multiplexing transmission mode is adopted from the resources of at least two uplink channels when the resources of the at least two uplink channels are overlapped in the time domain.

According to an aspect of the present application, there is provided a communication apparatus comprising:

a processor;

a memory storing executable instructions;

wherein the processor is configured to load and execute the executable instructions to implement the method for determining an uplink channel transmission mode as described above and/or the method for selecting resources of an uplink channel as described above.

According to an aspect of the present application, there is provided a computer readable storage medium having stored therein executable instructions loaded and executed by the processor to implement the method of determining an uplink channel transmission scheme as described above, and/or the method of selecting resources of an uplink channel as described above.

The technical scheme provided by the embodiment of the application can have the following beneficial effects:

when resources of at least two uplink channels overlap in time domain, determining a time interval between at least one downlink channel corresponding to the at least two uplink channels and a time domain position of a reference resource, and determining an uplink channel transmission mode according to a relation between the time interval and a target UE processing capability. Because the target UE processing capability is one of at least two UE processing capabilities supported by the terminal, which UE processing capability can be explicitly adopted to determine the uplink channel transmission mode, and the problem of how to multiplex uplink control information for UEs supporting at least two UE processing capabilities is solved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

FIG. 1 is a block diagram of a communication system shown in accordance with an exemplary embodiment;

fig. 2 is a diagram illustrating a determination of processing time based on PDSCH and UE processing capability, according to an example embodiment;

fig. 3 is a flowchart illustrating a method of determining an uplink channel transmission mode according to an exemplary embodiment;

fig. 4 is a flowchart illustrating a method of determining an uplink channel transmission mode according to an exemplary embodiment;

fig. 5 is a time-frequency diagram illustrating when at least two uplink resources overlap in the time domain according to an example embodiment;

fig. 6 is a time-frequency illustration of a method of determining an uplink channel transmission mode according to an exemplary embodiment;

fig. 7 is a flowchart illustrating a method of determining an uplink channel transmission mode according to an exemplary embodiment;

fig. 8 is a flowchart illustrating a method of determining an uplink channel transmission mode according to an exemplary embodiment;

fig. 9 is a flowchart illustrating a method of determining an uplink channel transmission mode according to an exemplary embodiment;

fig. 10 is a time-frequency illustration of a method of determining an uplink channel transmission mode according to an exemplary embodiment;

Fig. 11 is a flowchart illustrating a method of resource selection of an uplink channel according to an exemplary embodiment;

fig. 12 is a time-frequency diagram illustrating a method of selecting resources of an uplink channel according to an exemplary embodiment;

fig. 13 is a block diagram of an uplink channel transmission mode determining apparatus according to an exemplary embodiment

Fig. 14 is a block diagram of a resource selection device of an uplink channel according to an exemplary embodiment;

fig. 15 is a schematic structural view of a terminal according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

The communication system and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the communication system and the appearance of a new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

Fig. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application, which may include: access network 12 and terminal 13.

Access network 12 includes a number of access network devices 120 therein. Access network device 120 may be a base station, which is a device deployed in an access network to provide wireless communication functionality for terminals. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different radio access technologies, the names of base station capable devices may vary, for example in LTE systems, called enodebs or enbs; in a 5G NR-U system, it is called gNodeB or gNB. As communication technology evolves, the description of "base station" may change. For convenience, the above-mentioned devices for providing the terminal 13 with the wireless communication function are collectively referred to as access network devices in the embodiments of the present application.

The terminal 13 may include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of User Equipment (UE), mobile Station (MS), terminal (terminal device), etc. having a wireless communication function. For convenience of description, the above-mentioned devices are collectively referred to as a terminal. Access network device 120 and terminal 13 communicate with each other via some air interface technology, such as the Uu interface.

In NR, the flexibility of PUCCH structure design results in their start and end symbols not necessarily aligned. In order to ensure that the terminal has enough processing time to multiplex UCI information domain data information, PUCCH and PUCCH must meet fixed timing requirements to enable multiplexing, otherwise, the terminal will reserve one PUCCH.

The multiplexing timing requirements between PUCCH and PDSCH are as follows, as shown in fig. 2:

1. the time difference T1 from the first OFDM symbol of the earliest transmitted channel of the time-domain overlapping PUCCHs to the last OFDM symbol of the scheduled PDSCH (downlink scheduling grant in fig. 2) of the DCI scheduling HARQ-ACKs is greater than N ₁ +d _1，1 +d _1，2 +1 OFDM symbols. Wherein N1 is the capability of the terminal to process PDSCH reported.

2. The time difference T2 from the first OFDM symbol of the earliest transmitted channel of the time-domain overlapped PUCCH to the last OFDM symbol of the DCI scheduling HARQ-ACK is greater than N ₂ +d _2，1 +1 symbols. Wherein N2 is the time reported by the terminal to process PDSCH.

Wherein μ corresponds to (μ) _PDCCH ，μ _PDSCH ，μ _UL ) One, get the maximum T _PROC，1 . Wherein mu _PDCCH Subcarrier spacing, μ, corresponding to PDCCH scheduling PDSCH _PDSCH Subcarrier spacing corresponding to scheduled PDSCH and μ _UL Corresponds to the subcarrier spacing of the uplink channel used for transmitting HARQ-ACKs and is kappa at [4, ts 38.211 ]Is defined in sub-clause 4.41.

D if HARQ-ACK is sent on PUCCH _1，1 ＝0。

If PDSCH is [4, TS 38.211]Is given in clause 7.4.1.1Mapping type a and the last symbol of PDSCH is located on the ith symbol of slot i less than 7, then d _1.2 ＝7。

For UE processing capability 1: if PDSCH is map type B, and: d if the number of allocated PDSCH symbols is 4 _1.2 =3; d if the number of allocated PDSCH symbols is 2 _1.2 = 3+d, where d is the number of overlapping symbols of the scheduled PDCCH and the scheduled PDSCH. For UE processing capability 2: if the PDSCH is of the mapping type B, d if the number of allocated PDSCH symbols is 2 or 4 _1.2 Is the number of overlapping symbols of the scheduled PDCCH and the scheduled PDSCH.

Terminal processing capability

After receiving the downlink scheduling information carried in DCI format 1_0 or 1_1, the terminal receives the corresponding PDSCH in the corresponding slot and sends feedback HARQ-ACK information to the base station. The time when the UE starts transmitting HARQ-ACK is later than T after the last symbol carrying PDSCH ends _proc，1 ＝[(N ₁ +d _1，1 +d _1，2 )(2048+144)·k2 ^-u ]·T _C Is a time of (a) to be used.

If this requirement is not met, the terminal will not send a HARQ-ACK. Where N1 has different values depending on the processing capability of the UE. The NR supports two UE processing capabilities, UE processing capability 1 and UE processing capability 2, respectively, and the values of N1 under the two UE processing capabilities are shown in tables 1.1 and 1.2.

Table 1.1: PDSCH processing time for PDSCH processing capability 1

Table 1.2: PDSCH processing time for processing capability 2 of PDSCH

The earliest transmission time of the terminal for transmitting the uplink PDSCH (including DMRS) is later than the end of the last symbol of the PUCCH carrying the scheduling information of the PDSCHPost T _proc，2 ＝[(N ₂ +d _1，1 +d _1，2 )(2048+144)·k2 ^-u ]·T _C Time, where N2 has different values depending on the processing capability of the UE. The NR supports two UE processing capabilities, UE processing capability 1 and UE processing capability 2, respectively, and the values of N2 under the two processing capabilities are shown in tables 1.3 and 1.4.

Table 1.3: PDSCH preparation time for PDSCH processing capability 1

μ	PDSCH preparation time N ₂ [ symbol ]]
		0	10
1	12
		2	23
3	36

Table 1.4: PDSCH preparation time for processing capability 2 of PDSCH

μ	PDSCH preparation time N ₂ [ symbol ]]
		0	5
1	5.5
		2	11 (for frequency domain Range 1)

PUCCH-ACK resource determination procedure

The terminal obtains N PUCCH-ACK resources { PUCCH resource 0, PUCCH resource 1, PUCCH resource 2, PUCCH resource N-1}, N > =1, through semi-static signaling. The PUCCH resources are grouped into at least two groups according to capacity (number of bits carrying UCI), such as { PUCCH resource set 0, PUCCH resource set 1, PUCCH resource set 2, PUCCH resource set 3}. Wherein, the UCI bit number which can be carried by the PUCCH resource in the PUCCH resource set 0 is less than or equal to 2; the UCI bit number which can be borne by the PUCCH resources in the PUCCH resource set 1 is more than 2 and less than or equal to X1; the UCI bit number which can be borne by the PUCCH resources in the PUCCH resource set 2 is more than X1 and less than or equal to X2; the UCI bit number which can be borne by the PUCCH resources in the PUCCH resource set 3 is more than X2 and less than or equal to X3; x1, X2, X3 are configured by the network.

And the terminal selects one PUCCH resource from the PUCCH resource set to send UCI according to the PUCCH resource index (PUCCH resource indicator) and the UCI bit number in the downlink scheduling grant (DL grant).

First, the terminal selects a PUCCH resource set i according to the UCI bit number Y, where Y is within the capacity range of the PUCCH resource set i. And secondly, the terminal selects one PUCCH resource from the PUCCH resource set i according to the PUCCH resource index indication.

In NR systems, such as Ultra-Reliable and Low Latency Communications (URLLC), a terminal has different UE processing capabilities for different types of data, i.e. the terminal has at least two UE processing capabilities for a period of time, at least two technical problems are caused:

problem 1: calculating a timing requirement threshold based at least on which UE processing capability;

problem 2: considering that the processing time requirement of the low-delay service is extremely short, the traditional time sequence calculation mode only considers the calculation mode of the forefront symbol of the PUCCH, which can cause low-efficiency transmission, namely, the 2 nd multiplexing transmission mode can be adopted, and the first transmission discarding mode is adopted, so that the time sequence calculation mode needs to be optimized.

Fig. 3 is a flowchart illustrating a method for determining an uplink channel transmission mode according to an exemplary embodiment of the present application. The method may be applied in the communication system shown in fig. 1. The method comprises the following steps:

Step 301, a base station configures resources of a plurality of uplink channels to a UE;

the uplink channel resources are, for example, resources for transmitting PUCCH, abbreviated as PUCCH resources. The base station transmits downlink control information (Downlink Controllnformation, DCI) to the UE, and the DCI may be in DCI format 1_0 or DCI format 1_1. The DCI carries a downlink scheduling grant (DLgrant). The DLgrant is used to configure a plurality of PUCCH resources to the UE.

Exemplary, the PUCCH resource includes: time-frequency resources for transmitting PUCCH-ACKs.

Step 302, the ue determines an uplink channel transmission mode;

the uplink channel transmission mode includes: multiplexing transmission scheme or non-multiplexing transmission scheme.

Step 303, the ue sends an uplink channel to the base station;

and the UE adopts a determined uplink channel transmission mode to send an uplink channel to the base station.

For example, the UE multiplexes two PUCCH-ACKs to the same PUCCH transmission using a multiplexing transmission manner; or, the UE sends a PUCCH-ACK to the base station by adopting a non-multiplexing transmission mode.

Step 304, the base station determines the uplink channel transmission mode;

in step 305, the base station detects and receives an uplink channel transmitted by the UE.

And the base station detects and receives the uplink channel sent by the UE according to the determined uplink channel transmission mode.

The present application is exemplified in a multiplexing scenario of at least two PUCCH-ACKs. The technical scheme of the application is also applicable to other types of PUCCH multiplexing scenes and scenes of PUCCH and PDSCH multiplexing transmission; as long as there is feedback of multiple latency requirements in multiple uplink channels (PUCCH, PDSCH). For example, multiplexing between PUCCH-ACK and PUCCH-CSI, and also for example, multiplexing of PUCCH-ACK to PDSCH.

The above "determining the transmission mode of the uplink channel" may be implemented as: when resources of at least two uplink channels overlap in the time domain, determining a time interval between at least one downlink channel corresponding to the at least two uplink channels and a time domain position of a reference resource; and determining an uplink channel transmission mode according to the relation between the time interval and the processing capacity of the target UE.

Wherein the target UE processing capability is one of at least two UE processing capabilities supported by the terminal.

Fig. 4 is a flowchart illustrating a method for determining an uplink channel transmission mode according to an exemplary embodiment of the present application. The method may be performed by a terminal or a base station as shown in fig. 1, and the method includes:

step 401, determining that resources of at least two uplink channels overlap in time domain;

In this embodiment, the uplink channel is used as PUCCH, the downlink channel is used as PDSCH, the uplink channel resource is used as PUCCH resource, and the uplink channel transmission mode is used as an example of PUCCH transmission mode.

The form in which at least two PUCCH resources overlap in the time domain includes: partially overlapping PUCCHs, containing, fully overlapping. At least two PUCCHs include: as an example of PUCCH resource a and PUCCH resource B, fig. 5 (a) shows a case where PUCCH resource a and PUCCH resource B contain overlapping in the time domain; fig. 5 (B) shows a case where PUCCH resource a and PUCCH resource B completely overlap in the time domain; fig. 5 (c) shows a case where PUCCH resource a and PUCCH resource B are partially overlapped in the time domain.

For example, the terminal receives a DLgrant transmitted by the base station, where the DLgrant is used for scheduling time-frequency resources of the PDSCH, and scheduling feedback resources for feeding back HARQ-ACKs of the PDSCH. That is, the terminal determines PUCCH resources according to the DLgrant transmitted from the base station.

For example, the terminal may also receive semi-static signaling (e.g., n1PUCCH-AN in SRS-Config) sent by the base station, and determine PUCCH resources.

Step 402, when there are at least two uplink channel resources overlapping in time domain, determining a target UE processing capability of at least two UE processing capabilities;

Alternatively, the target UE processing capability is a UE processing capability determined from at least one downlink channel (one designated downlink channel or each downlink channel or a portion of a downlink channel).

In one example, the downlink channel corresponding to each uplink channel can determine a target UE processing capability, where the downlink channel and the target UE processing capability have a one-to-one correspondence. For example, the PDSCHA can determine the target UE processing capability a; PDSCHB is able to determine the target UE processing capability B;

in another example, the target UE processing capability is determined from a specified first downlink channel comprising: a last downlink channel of the corresponding downlink channels of the at least two uplink channels; or, the downstream channel with the end position being the rearmost downstream in the downstream channels corresponding to at least two upstream channels; or any one of the downlink channels corresponding to at least two uplink channels. In this embodiment, the first downlink channel is the last PDSCH (hereinafter referred to as the first PDSCH) among PDSCH corresponding to all PUCCHs in at least two PUCCHs.

Illustratively, determining a target UE processing capability of the at least two UE processing capabilities includes at least one of:

1) The target UE processing capability is determined from the transmission parameters of the PDSCH.

The transmission parameters of PDSCH include, but are not limited to: transport block size (Transport Block Size, TBS), number of resource blocks (ResourceBlock, PRB).

When the TBS of the PDSCH is larger than a first threshold K, determining a first UE processing capability of at least two UE processing capabilities as a target UE processing capability; when the TBS of the PDSCH is smaller than the first threshold K, determining the second UE processing capability of the at least two UE processing capabilities as the target UE processing capability so as to ensure that the large data block has the purpose of longer processing time. When the TBS is equal to the first threshold K, the first UE processing capability or the second UE processing capability is determined as the target UE processing capability, which is not limited.

When the PRB of the PDSCH is larger than a second threshold L, determining a first UE processing capability of at least two UE processing capabilities as a target UE processing capability; when the PRB of the PDSCH is less than the second threshold L, a second UE processing capability of the at least two UE processing capabilities is determined as the target UE processing capability in order to guarantee the purpose of the large data block having a longer processing time. When the PRB is equal to the second threshold L, the first UE processing capability or the second UE processing capability is determined as the target UE processing capability, which is not limited.

2) And determining the target UE processing capability from at least two UE processing capabilities according to the indication of the DCI for scheduling the PDSCH.

When DCI of PDSCH is used for indicating high-delay service, determining a first UE processing capability of at least two UE processing capabilities as a target UE processing capability; when the DCI of the PDSCH is used to indicate low latency traffic, a second UE processing capability of the at least two UE processing capabilities is determined to be the target UE processing capability. The high latency service is a service requiring a latency greater than a threshold, and the low latency service is a service requiring a latency less than a threshold.

Wherein the processing time of the first UE processing capability is longer than the processing time of the second UE processing capability.

Step 403, determining a time sequence requirement threshold according to the processing capability of the target UE;

when the processing capability of the target UE is UE processing capability 1, determining a processing time N corresponding to the processing capability of the target UE according to the above table 1.1 _1.1 Further determining the time sequence requirement threshold value as N _1，1 +d _1，1 +d _1，2 +1

When the target UE processing capability is UE processing capability 2, the rootDetermining the processing time N corresponding to the processing capability of the target UE according to the above table 1.2 _1.2 Further determining the time sequence requirement threshold value as N _1，2 +d _1，1 +d _1，2 +1。

Step 404, judging whether the time interval is not less than the time sequence requirement threshold;

in one example, the time interval includes an interval between time domain locations of PDSCH and reference resources, respectively, corresponding to at least two PUCCH channels, the reference resource being one of the at least two PUCCH resources.

A time interval between a starting symbol of the reference resource and a last symbol of a last PDSCH among PDSCH corresponding to all PUCCHs is calculated. And judging whether the time interval is larger than a time sequence requirement threshold or not, wherein the time sequence requirement threshold is determined according to the processing time corresponding to the processing capability of the target UE.

Referring to fig. 6 in combination, let the reference resource be PUCCH a, the time interval between the starting symbol of PUCCH a and the last symbol of PDSCH be T1, and the time interval between the starting symbol of PUCCHA and the last symbol of the second PDSCH be T2.

When all the time intervals are not smaller than the time sequence requirement threshold value, step 405 is entered; step 406 is entered when there is at least one time interval less than the timing requirement threshold.

Step 405, determining to adopt a multiplexing transmission mode;

taking PUCCH-ACK as an example, when all time intervals are not smaller than the timing requirement threshold, a multiplexing transmission mode of multiplexing two PUCCH-ACKs to the same PUCCH for transmission is determined.

In step 406, it is determined that only a portion of the PUCCH is transmitted.

When there is at least one time interval less than the timing requirement threshold, it is determined that only a portion of the PUCCH, such as only one PUCCH-ACK, is transmitted.

In summary, in the method provided in this embodiment, when there are at least two uplink channel resources overlapping in the time domain, the uplink channel transmission mode is determined according to the relationship between the time interval and the processing capability of the target UE. Because the target UE processing capability is one of at least two UE processing capabilities supported by the terminal, which UE processing capability can be explicitly adopted to determine the uplink channel transmission mode, and the problem of how to multiplex uplink control information for UEs supporting at least two UE processing capabilities is solved.

In the UE processing capacity determined according to the PDSCH, the shorter the processing time is, the stronger the processing capacity is; the longer the processing time, the weaker the processing power.

In an alternative embodiment based on fig. 4, a severe computing power (short processing time) may also be employed in determining the target UE processing power of the at least two processing powers.

Fig. 7 is a flowchart illustrating a method for determining a PUCCH transmission mode according to another exemplary embodiment of the present application. The method may be performed by a terminal or a base station as shown in fig. 1, and the method includes:

Step 4021, when there are at least two uplink channels with overlapping resources in the time domain, determining the shortest processing time of the UE processing capabilities determined according to the downlink channels as the target UE processing capability;

The target UE processing capability is, for example, the one with the shortest processing time among the UE processing capabilities determined respectively according to the respective downlink channels corresponding to all the uplink channels

Illustratively, the at least two UE processing capabilities include: UE processing capability 1 and UE processing capability 2 are taken as examples, and the processing capability N of the terminal for PDSCH is determined according to PDSCH _1.1 And N _1.2 . When the processing capability of the target UE is UE processing capability 1, determining a processing time N corresponding to the processing capability of the target UE according to the above table 1.1 _1.1 When the target UE processing capability is UE processing capability 2, determining a processing time N corresponding to the target UE processing capability according to the above table 1.2 _1.2 。

Will N _1.1 And N _1.2 The shorter of the corresponding processing capabilities is determined as the target UE processing capability. That is, min { N } _1.1 ，N _1.2 And determining the corresponding processing capability as the processing capability of the target UE.

when the target UE processing capability is UE processing capability 1, determining the timing requirement threshold as N _1，1 +d _1，1 +d _1，2 +1; when the target UE processing capability is UE processing capability 2, determining the timing requirement threshold as N _1，2 +d _1，1 +d _1，2 +1。

Step 405, determining to adopt a multiplexing transmission mode;

In step 406, it is determined to use a non-multiplexing transmission scheme.

In summary, according to the method provided in the embodiment, the UE processing capability corresponding to the severe processing capability is used as the target UE processing capability, so that the success rate of the terminal in the PUCCH multiplexing transmission mode can be ensured.

In an alternative embodiment based on fig. 4, loose computing power (long processing time) may also be employed in determining the target UE processing capability of the at least two processing capabilities.

Fig. 8 is a flowchart illustrating a method for determining a PUCCH transmission mode according to another exemplary embodiment of the present application. The method may be performed by a terminal or a base station as shown in fig. 1, and the method includes:

Step 4022, when there are at least two uplink channels with overlapping resources in the time domain, determining one of the UE processing capacities determined according to the downlink channel with the longest processing time as the target UE processing capacity;

the target UE processing capability is illustratively the longest processing time among the UE processing capabilities respectively determined according to the respective downlink channels corresponding to all the uplink channels.

Will N _1.1 And N _1.2 The corresponding processing capability of the longer one of the target UEs is determined as the processing capability of the target UEs. That is, max { N } _1.1 ，N _1.2 And determining the corresponding processing capability as the processing capability of the target UE.

when the target UE processing capability is UE processing capability 1, determining the timing requirement threshold as N _1，1 +d _1，1 +d _1，2 +1; when the processing capability of the target UE is UE processing capability 2, determining a processing time N corresponding to the processing capability of the target UE according to the above table 1.2 _1.2 Determining a time sequence requirement threshold value as N _1，2 +d _1，1 +d _1，2 +1。

Step 405, determining to adopt a multiplexing transmission mode;

In step 406, it is determined to use a non-multiplexing transmission scheme.

In summary, the method provided in this embodiment can ensure that the terminal has sufficient decoding time of PDSCH by adopting the UE processing capability corresponding to the loose processing capability as the target UE processing capability.

Fig. 4, fig. 7, and fig. 8 are examples of reference resources as a first resource (e.g., a first PUCCH with earliest time domain position: PUCCH ha) in at least two uplink channels. In alternative embodiments based on fig. 4, 7 and 8, the reference resource may also be one of the resources supporting multiplexed transmission of at least two uplink channels.

Fig. 9 is a flowchart illustrating a method for determining a PUCCH transmission mode according to another exemplary embodiment of the present application. The method may be performed by a terminal or a base station as shown in fig. 1, and the method includes:

step 4011, determining a reference resource, where the reference resource is a second resource used for multiplexing transmission in the resources of at least two uplink channels;

when there are at least two PUCCH resources (PUCCH ha and PUCCH B) overlapping in the time domain, a reference resource for multiplexing the PUCCH A-ACK codebook and the PUCCH B-ACK codebook is determined, assuming that the reference resource is PUCCH B.

optionally, the target UE processing capability is a UE processing capability determined from at least one downlink channel.

Illustratively, the at least one downlink channel includes: the last downlink channel in all the downlink channels corresponding to the at least two uplink channels; or, the downstream channel with the end position being the last among all downstream channels corresponding to at least two upstream channels; or, one downlink channel of all downlink channels corresponding to at least two uplink channels; or, all downlink channels corresponding to at least two uplink channels. In this embodiment, the first downlink channel is the last PDSCH (hereinafter referred to as the first PDSCH) among PDSCH corresponding to all PUCCHs in at least two PUCCHs.

3) And respectively determining the shortest processing time in the UE processing capacities according to all the downlink channels corresponding to all the uplink channels.

4) And respectively determining one of the processing capacities of the UE with the longest processing time according to all the downlink channels corresponding to all the uplink channels.

When the processing capability of the target UE is UE processing capability 2, determining a processing time N corresponding to the processing capability of the target UE according to the above table 1.2 _1.2 Further determining the time sequence requirement threshold value as N _1，2 +d _1，1 +d _1，2 +1。

Referring to fig. 10 in combination, let the reference resource be PUCCH B, and the time interval between the starting symbol of PUCCH B and the last symbol of the second PDSCH be T2.

Step 405, determining to adopt a multiplexing transmission mode;

taking PUCCH-ACKs as an example, when all time intervals are not less than the timing requirement threshold, a multiplexing transmission mode of multiplexing two PUCCH-ACKs to the same PUCCH (second resource) for transmission is determined.

In step 406, it is determined to use a non-multiplexing transmission scheme.

In summary, according to the method provided by the alternative embodiment, the reference resource of the timing calculation is optimized, so that the coarse and conservative calculation rule (the earliest PUCCH) is optimized to multiplex the corresponding PUCCH, and the probability of using the PUCCH multiplexing transmission mode is improved.

In an alternative embodiment based on fig. 9, the reference resource may also be the later one of { first resource, third resource }, the third resource being a candidate resource for multiplexing transmission among the resources of at least two uplink channels, thereby further relaxing the multiplexing condition.

In the above embodiment, the reference resource is determined before calculating whether the timing requirement is satisfied. According to another aspect of the present application, after determining the timing requirement, the resources of the uplink channel that meet the timing requirement may be directly selected from the resources of the candidate uplink channels. That is, when there are at least two uplink channel resources overlapping in the time domain, a target resource used when the multiplexing transmission scheme is adopted is selected from the at least two uplink channel resources.

Optionally, the target resource satisfies the following first condition:

the time interval between the time domain position of the target resource and at least one downlink channel corresponding to at least two uplink channels is larger than a time sequence requirement threshold, and the time sequence requirement threshold is determined according to the capability of the target UE;

the number of loadable bits of the target resource is not less than the number of bits to be transmitted.

Wherein the timing requirements include: the time domain position of the target resource is later than the time t2, t2=t1+ { n+d _1.1 +d _1.2 +1, where t1 is the time of the last symbol of the first downlink channel and N is the target UE processing capability.

Optionally, the target resource further satisfies the following second condition: the target resource is the earliest resource in the initial position among the resources meeting the first condition; or, the target resource is the one of the resources satisfying the first condition whose starting position is the latest.

Optionally, the at least one downlink channel includes: the last downlink channel in all the downlink channels corresponding to the at least two uplink channels; or, the downstream channel with the end position being the last among all downstream channels corresponding to at least two upstream channels; or, one downlink channel of all downlink channels corresponding to at least two uplink channels; or, all downlink channels corresponding to at least two uplink channels.

Optionally, the target UE processing capability includes: determining UE processing capacity according to a downlink channel; or, the processing time is the shortest in the UE processing capacity determined by the downlink channels corresponding to at least two uplink channels; or, the processing time is longest in the UE processing capacity determined by the downlink channels corresponding to at least two uplink channels.

Fig. 11 is a flowchart illustrating a method for selecting resources of an uplink channel according to another exemplary embodiment of the present application. The method may be performed by a terminal or a base station as shown in fig. 1. The method comprises the following steps:

step 1101, determining a target UE processing capability from at least two UE processing capabilities when there are at least two uplink channel resources overlapping in the time domain;

Illustratively, the at least one downlink channel includes: the last downlink channel in all the downlink channels corresponding to the at least two uplink channels; or, the downstream channel with the end position being the last among all downstream channels corresponding to at least two upstream channels; or, one downlink channel of all downlink channels corresponding to at least two uplink channels; or, all downlink channels corresponding to at least two uplink channels.

Step 1102, calculating a time sequence requirement threshold according to the processing capability of the target UE;

when the processing capability of the target UE is UE processing capability 1, determining a processing time N corresponding to the processing capability of the target UE according to the above table 1.1 _1.1 。N _1.1 The terminal adopts the processing capability of the last PDSCH corresponding to the PUCCH by the UE processing capability 1. Correspondingly, the threshold value of the time sequence requirement corresponding to the processing capability 1 of the UE is N _1，1 +d _1，1 +d _1，2 +1。

When the processing capability of the target UE is UE processing capability 2, determining a processing time N corresponding to the processing capability of the target UE according to the above table 1.2 _1.2 。N _1.2 The processing capability of the terminal for the last PDSCH corresponding to the PUCCH by adopting the UE processing capability 2. Correspondingly, the threshold value of the time sequence requirement corresponding to the processing capability 2 of the UE is N _1，2 +d _1，1 +d _1，2 +1。

In step 1103, a target resource satisfying the timing requirement threshold is determined on the resources of at least two uplink channels.

The method comprises the following substeps:

1. determining the time t1 of the last symbol of the last PDSCH (first downlink channel) corresponding to at least two PUCCHs;

2. t1+ { N+d _1.1 +d _1.2 The time t2 corresponding to +1} is determined as the earliest time satisfying the timing requirement;

3. and determining the PUCCH resource meeting the first condition as a target resource.

The first condition includes: the time domain position of the target resource is later than the time t2; the number of loadable bits of the target resource is not less than the number of bits to be transmitted.

When more than one resource of the first condition is satisfied, the second condition may also be satisfied at the same time:

the target resource is the earliest resource in the initial position among the resources meeting the first condition; or, the target resource is the one of the resources satisfying the first condition whose starting position is the latest.

As an illustrative example, as shown in fig. 12, a terminal is preconfigured with one set of group PUCCH resources (see upper half of fig. 11). Step 1, a terminal respectively determines PUCCH corresponding to two PDSCH, PUCCH A and PUCCH B according to downlink scheduling grant (DL grant); wherein, PUCCH a and PUCCH B overlap in time domain position. Step 2, the terminal generates a frame according to the last symbol of the last PDSCH and the timing requirement (N ₁ +d _1，1 +d _1，2 +1), a time domain position t2 is determined. Step 3, the terminal finds out after t2 from the pre-configured PUCCH resource set; capacity can carry 2-bit HARQ-ACKs; and the earliest PUCCH resource, such as the diagonal PUCCH resource filled in fig. 1, i.e. the third PUCCH resource. And step 4, the terminal transmits the 2-bit HARQ-ACK on the third PUCCH resource.

In summary, according to the method provided in this embodiment, a suitable target resource is directly selected from the resource set of the uplink channel according to the timing requirement threshold, instead of using the reference resource to determine whether the timing relationship is satisfied, thereby providing the probability of multiplexing.

It should be noted that the embodiment shown in fig. 11 may also be applied to a terminal that only supports one UE processing capability, where the target UE processing capability is the UE processing capability supported by the terminal.

The following is a device embodiment of the application, for details of which not described in detail in the device embodiment, reference may be made to corresponding technical details in the method embodiment described above.

Fig. 13 is a block diagram of a PUCCH transmission mode determining apparatus according to an exemplary embodiment of the present application. The device comprises:

a manner determining module 1320, configured to determine a time interval between a time domain position of at least one downlink channel corresponding to at least two uplink channels and a reference resource when there are resources of the at least two uplink channels overlapping in a time domain; determining the uplink channel transmission mode according to the relation between the time interval and the processing capacity of the target User Equipment (UE); the target UE processing capability is one of at least two UE processing capabilities supported by the terminal.

In an alternative embodiment, the at least one downlink channel includes:

the last downlink channel in all the downlink channels corresponding to the at least two uplink channels; or, the end position of all the downlink channels corresponding to the at least two uplink channels is the last downlink channel; or, one downlink channel of all downlink channels corresponding to the at least two uplink channels; or, all downlink channels corresponding to the at least two uplink channels.

In an alternative embodiment, the reference resource includes:

a first resource of the resources of the at least two uplink channels; or alternatively, the first and second heat exchangers may be,

a second resource for multiplexing transmission among the resources of the at least two uplink channels; or alternatively, the first and second heat exchangers may be,

and the later one of the first resource and the third resource is a candidate resource for multiplexing transmission in the resources of the at least two uplink channels.

In an alternative embodiment, the target UE processing capability includes:

determining UE processing capacity according to the downlink channel; or alternatively, the first and second heat exchangers may be,

the processing time is the shortest in the UE processing capacity determined by the downlink channels corresponding to the at least two uplink channels; or alternatively, the first and second heat exchangers may be,

and the processing time is longest in the UE processing capacity determined by the downlink channels corresponding to the at least two uplink channels.

In an alternative embodiment, the first downlink channel is a first physical downlink shared channel PDSCH; the apparatus further comprises: a capability determination module 1340;

the capability determining module 1340 is configured to determine, according to the transmission parameter of the PDSCH, the target UE processing capability from at least two UE processing capabilities; or, the capability determining module 1340 is configured to determine the target UE processing capability from the at least two UE processing capabilities according to an indication of downlink control information DCI for scheduling the PDSCH.

In an optional embodiment, the capability determining module 1340 is configured to determine a first UE processing capability of the at least two UE processing capabilities as the target UE processing capability when the TBS of the PDSCH is greater than a first threshold K; when the TBS of the PDSCH is smaller than the first threshold K, determining the second UE processing capability of the at least two UE processing capabilities as the target UE processing capability so as to ensure that the large data block has the purpose of longer processing time. When the TBS is equal to the first threshold K, the first UE processing capability or the second UE processing capability is determined as the target UE processing capability, which is not limited.

In an optional embodiment, the capability determining module 1340 is configured to determine a first UE processing capability of the at least two UE processing capabilities as the target UE processing capability when the PRB of the PDSCH is greater than the second threshold L; when the PRB of the PDSCH is less than the second threshold L, a second UE processing capability of the at least two UE processing capabilities is determined as the target UE processing capability in order to guarantee the purpose of the large data block having a longer processing time. When the PRB is equal to the second threshold L, the first UE processing capability or the second UE processing capability is determined as the target UE processing capability, which is not limited.

In an optional embodiment, the capability determining module 1340 is configured to determine, when the DCI of the PDSCH is used to indicate high-latency traffic, a first UE processing capability of the at least two UE processing capabilities as the target UE processing capability; when the DCI of the PDSCH is used for indicating low-delay service, determining a second UE processing capability of the at least two UE processing capabilities as the target UE processing capability;

In an alternative embodiment, the manner determining module 1320 is configured to determine a timing requirement threshold according to the target UE processing capability; and when the time interval is not smaller than the time sequence requirement threshold, determining that the uplink channel transmission mode is a multiplexing transmission mode.

Fig. 14 is a block diagram of an uplink channel resource selection device according to an exemplary embodiment of the present application. The device comprises:

a selection module 1420, configured to select, when there are at least two uplink channels whose resources overlap in the time domain, a target resource used when the multiplexing transmission scheme is adopted, from the at least two uplink channels.

In an alternative embodiment, the target resource satisfies the following first condition:

the time interval between the time domain position of the target resource and at least one downlink channel corresponding to the at least two uplink channels is larger than a time sequence requirement threshold, and the time sequence requirement threshold is determined according to the capability of the target UE;

the number of the loadable bits of the target resource is not less than the number of bits to be transmitted.

In an alternative embodiment, the target resource further satisfies the following second condition:

the target resource is the earliest resource in the starting position among the resources meeting the first condition; or, the target resource is the latest resource in the resources meeting the first condition.

In an alternative embodiment, the at least one downlink channel includes:

In an alternative embodiment, the target UE processing capability includes:

the processing time is the shortest in the UE processing capacity determined by the downlink channels corresponding to all the at least two uplink channels; or alternatively, the first and second heat exchangers may be,

and determining the longest processing time in the UE processing capacity determined by the downlink channels corresponding to all the uplink channels in the at least two uplink channels.

It should be noted that the above-described mode determining module or the capability determining module or the selecting module may be implemented by executing code by a processor. In another aspect, the apparatus may further include a transmitting module for transmitting an uplink channel, or a receiving module for receiving an uplink channel. The receiving module may be implemented by a receiver executing code and the transmitting module may be implemented by a transmitter executing code.

Fig. 15 shows a schematic structural diagram of a communication device (terminal or base station) according to an exemplary embodiment of the present application, the communication device including: a processor 1501, a receiver 1502, a transmitter 1503, a memory 1504 and a bus 1505.

The processor 1501 includes one or more processing cores, and the processor 1501 executes various functional applications and information processing by running software programs and modules.

The receiver 1502 and the transmitter 1503 may be implemented as one communication component, which may be a communication chip.

The memory 1504 is connected to the processor 1501 via a bus 1505.

The memory 1504 may be used to store at least one instruction that the processor 1501 executes to implement the various steps of the method embodiments described above.

Further, the memory 1504 may be implemented by any type or combination of volatile or nonvolatile storage devices including, but not limited to: magnetic or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static Random Access Memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM).

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as a memory, comprising instructions executable by a processor of an access network device to perform the above method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

A non-transitory computer readable storage medium, which when executed by a processor of an access network device, causes a communication device to perform the above-described method.

An exemplary embodiment of the present application also provides a computer readable storage medium having stored therein at least one instruction, at least one program, a code set, or a set of instructions, which are loaded and executed by the processor to implement the methods provided by the above-described respective method embodiments.

An exemplary embodiment of the application also provides a computer program product having stored therein at least one instruction, at least one program, a set of codes or a set of instructions, which are loaded and executed by the processor to implement the methods provided by the various method embodiments described above.

It should be understood that references herein to "a plurality" are to two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. The method for determining the uplink channel transmission mode is characterized by comprising the following steps:

determining the uplink channel transmission mode according to the relation between the time interval and the processing capacity of the target User Equipment (UE); the target UE processing capability is one of at least two UE processing capabilities supported by the terminal;

The target UE processing capability includes: determining UE processing capacity according to the downlink channel, wherein the downlink channel is a physical downlink shared channel PDSCH;

the method further comprises the steps of:

when downlink control information DCI of the PDSCH is used to indicate a high-latency service, determining a first UE processing capability of the at least two UE processing capabilities as the target UE processing capability;

when the DCI of the PDSCH is used for indicating low-delay service, determining a second UE processing capability of the at least two UE processing capabilities as the target UE processing capability;

2. The method of claim 1, wherein the at least one downlink channel comprises:

the last downlink channel in all the downlink channels corresponding to the at least two uplink channels;

or, the end position of all the downlink channels corresponding to the at least two uplink channels is the last downlink channel;

or, one downlink channel of all downlink channels corresponding to the at least two uplink channels;

or, all downlink channels corresponding to the at least two uplink channels.

3. The method of claim 1, wherein the reference resource comprises:

4. A method according to any one of claims 1 to 3, wherein said determining the uplink channel transmission mode according to the relation between the time interval and the processing capability of the target UE comprises;

determining a time sequence requirement threshold according to the processing capacity of the target UE;

and when the time interval is not smaller than the time sequence requirement threshold, determining that the uplink channel transmission mode is a multiplexing transmission mode.

5. The method according to claim 4, wherein the method further comprises:

6. The method of claim 5, wherein the target resource satisfies a first condition that:

The time interval between the time domain position of the target resource and at least one downlink channel corresponding to the at least two uplink channels is larger than a time sequence requirement threshold, and the time sequence requirement threshold is determined according to the processing capacity of target User Equipment (UE);

7. The method of claim 6, wherein the target resource further satisfies a second condition of:

the target resource is the earliest resource in the starting position among the resources meeting the first condition;

or, the target resource is the latest resource in the resources meeting the first condition.

8. An apparatus for determining an uplink channel transmission mode, comprising: a mode determining module and a capability determining module;

the mode determining module is used for determining a time interval between at least one downlink channel corresponding to at least two uplink channels and a time domain position of a reference resource when resources of the at least two uplink channels overlap in a time domain; determining the uplink channel transmission mode according to the relation between the time interval and the processing capacity of the target User Equipment (UE); the target UE processing capability is one of at least two UE processing capabilities supported by the terminal;

the capability determining module is configured to determine, when the DCI of the PDSCH is used to indicate a high-latency service, a first UE processing capability of the at least two UE processing capabilities as the target UE processing capability; when the DCI of the PDSCH is used for indicating low-delay service, determining a second UE processing capability of the at least two UE processing capabilities as the target UE processing capability;

9. The apparatus of claim 8, wherein the at least one downlink channel comprises:

or, all downlink channels corresponding to the at least two uplink channels.

10. The apparatus of claim 8, wherein the reference resources comprise:

11. The device according to any one of claims 8 to 10, wherein,

the mode determining module is used for determining a time sequence requirement threshold according to the processing capacity of the target UE; and when the time interval is not smaller than the time sequence requirement threshold, determining that the uplink channel transmission mode is a multiplexing transmission mode.

12. The apparatus of claim 11, wherein the apparatus further comprises:

13. The apparatus of claim 12, wherein the target resource satisfies a first condition that:

14. The apparatus of claim 13, wherein the target resource further satisfies a second condition of:

15. A communication device, the communication device comprising:

a processor;

a memory storing executable instructions;

wherein the processor is configured to load and execute the executable instructions to implement the method for determining an uplink channel transmission mode according to any one of claims 1 to 7.

16. A computer readable storage medium having stored therein executable instructions that are loaded and executed by a processor to implement the method of determining an uplink channel transmission mode according to any one of claims 1 to 7.