CN114449656A

CN114449656A - SUL carrier wave determining method, device, related equipment and storage medium

Info

Publication number: CN114449656A
Application number: CN202011225182.4A
Authority: CN
Inventors: 郝悦; 陈宁宇; 陈卓; 江天明; 邓伟
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2022-05-06

Abstract

The application discloses a method, a device, a terminal, a network device and a storage medium for determining a Supplementary Uplink (SUL) carrier. The method comprises the following steps: the terminal reports the first information to the network side; the first information represents the SUL carrier capability supported by the terminal; receiving second information sent by a network side; the second information represents configuration information of the SUL carrier; wherein the first information comprises at least one of: whether the terminal supports a plurality of SUL carriers; the maximum number of SUL carriers scheduled; the maximum number of SUL carriers is transmitted simultaneously.

Description

SUL carrier wave determining method, device, related equipment and storage medium

Technical Field

The present application relates to the field of wireless communications, and in particular, to a method and an apparatus for determining a Supplemental Uplink (SUL) carrier, a related device, and a storage medium.

Background

Compared with the downlink, the uplink is easier to cover and limit, and the uplink has more urgent need for low frequency, so that the frequency of at least one frequency band of 900MHz, 1800MHz, F, A and E frequency bands can be considered to be replanted and used as a frequency band of a fifth generation mobile communication technology (5G), and the uplink is enhanced by adopting a full uplink spectrum SUL mode; while 5G existing or potential frequencies, such as 4.9GHz, 6GHz, or millimeter wave, etc., the uplink capability may be considered to adopt a manner of supplementing a downlink (SDL) (or TDD carrier) or SDL (or TDD carrier) + a part of uplink (only for feedback, such as a channel Sounding Reference Signal (SRS)). In addition, in order to further reduce the cost of building the network, a combination scheme of SUL + N (N > ═ 1) SDL (or TDD carriers) is introduced, that is, the association relationship between the SUL and the SDL carrier (TDD carrier) is defined.

However, in the related art, when the association scheme is adopted, inaccuracy of SUL selection may be caused, thereby reducing uplink performance.

Disclosure of Invention

In order to solve the related technical problem, embodiments of the present application provide a method, an apparatus, related devices, and a storage medium for determining an SUL carrier.

The technical scheme of the embodiment of the application is realized as follows:

the embodiment of the application provides a method for determining an SUL carrier, which is applied to a terminal and comprises the following steps:

reporting the first information to a network side; the first information represents the SUL carrier capability supported by the terminal;

receiving second information sent by a network side; the second information represents configuration information of the SUL carrier; wherein the first information comprises at least one of:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

In the above scheme, the second information represents configuration information of N SUL carriers, where N is an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

In the foregoing solution, the second information indicates at least one SUL carrier of N SUL carriers configured for the terminal; n is an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

In the foregoing solution, the second information indicates M SUL carriers activated from N SUL carriers configured for the terminal, where N is an integer greater than or equal to 1; m is an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

In the foregoing solution, the second information indicates at least one SUL carrier of M SUL carriers activated by the terminal; the activated M SUL carriers belong to N SUL carriers configured on the network side; m is an integer greater than or equal to 1; n represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located; n is an integer greater than or equal to 1.

In the above scheme, the method further comprises:

receiving third information sent by a network side; the third information is used for indicating the terminal to activate M SUL carriers.

In the above scheme, the third information sent by the network side is received by one of the following modes:

a Radio Resource Control (RRC) message;

a media access control unit (MAC CE);

downlink Control Information (DCI).

In the above scheme, the method further comprises:

and acquiring N SUL carrier information associated with the downlink carrier configured for the cell where the terminal is located by the network side.

In the above scheme, the second information is received by one of the following methods:

an RRC message;

MAC CE；

DCI。

the embodiment of the present application further provides a method for determining an SUL carrier, which is applied to a network device, and includes:

receiving first information reported by a terminal; the first information represents the SUL carrier capability supported by the terminal;

sending second information to the terminal; the second information represents configuration information of the SUL carrier; wherein the first information comprises at least one of:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

In the above scheme, the method further comprises:

sending third information to the terminal; the third information indicates that the terminal activates M SUL carriers simultaneously.

In the above scheme, the third information is sent to the terminal in one of the following manners:

an RRC message;

MAC CE；

DCI。

in the above scheme, the method further comprises:

configuring N SUL carrier information associated with a downlink carrier for a cell where the terminal is located; n is an integer greater than or equal to 1.

In the above scheme, the method further comprises:

determining a SUL carrier based on the first information.

In the foregoing solution, the determining the SUL carrier based on the first information includes:

and under the condition that the first information represents that the terminal supports a plurality of SUL carriers, determining the SUL carriers based on the first information, the strength of the uplink reference signal, the measurement result of the uplink and downlink coverage difference and the service quality grade of the service.

In the foregoing solution, the determining the SUL carrier based on the first information, the strength of the uplink reference signal, the measurement result of the uplink and downlink coverage difference, and the service quality level of the service includes:

selecting M SUL carriers to be activated by the terminal from N SUL carriers configured for the terminal based on the strength of an uplink reference signal; n represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located; n is an integer greater than or equal to 1; m is an integer greater than or equal to 1 and less than or equal to N;

and determining at least one carrier from the M SUL carriers based on the measurement result of the uplink and downlink coverage difference and the service quality grade of the service.

selecting Q SUL carriers from N SUL carriers configured for the terminal based on the measurement result of the uplink and downlink coverage difference and the service quality grade of the service; n represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located; n is an integer greater than or equal to 1; q is an integer greater than or equal to 1 and less than or equal to N;

at least one carrier is determined from the Q SUL carriers based on the strength of the uplink reference signal.

The embodiment of the present application further provides a SUL carrier determining apparatus, including:

a reporting unit, configured to report the first information to a network side; the first information represents the SUL carrier capability supported by the terminal;

the first receiving unit is used for receiving second information sent by a network side; the second information represents configuration information of the SUL carrier; wherein the first information comprises at least one of:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

the second receiving unit is used for receiving the first information reported by the terminal; the first information represents the SUL carrier capability supported by the terminal;

a sending unit, configured to send second information to the terminal; the second information represents configuration information of the SUL carrier; wherein the first information comprises at least one of:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

An embodiment of the present application further provides a terminal, including: a first communication interface and a first processor; wherein the content of the first and second substances,

the first communication interface is configured to:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

An embodiment of the present application further provides a network device, including: a second communication interface and a second processor; wherein the content of the first and second substances,

the second communication interface is configured to:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

An embodiment of the present application further provides a terminal, including: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is configured to execute the steps of any of the above-mentioned methods at the terminal side when running the computer program.

An embodiment of the present application further provides a network device, including: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is configured to execute the steps of any one of the methods of the network device side when the computer program is executed.

The embodiment of the present application further provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any method on the terminal side, or implements the steps of any method on the network device side.

According to the SUL carrier determining method, the SUL carrier determining device, the relevant equipment and the storage medium, the terminal reports first information to the network equipment; the first information represents the SUL carrier capability supported by the terminal; wherein the first information comprises at least one of: whether the terminal supports a plurality of SUL carriers; the maximum number of SUL carriers scheduled; simultaneously transmitting the maximum number of SUL carriers; the network equipment sends second information to the terminal; the second information represents the configuration information of the SUL carriers, the terminal reports the SUL carrier capability supported by the terminal, and the network side selects the SUL carriers for the terminal based on the SUL carrier capability of the terminal, so that the more appropriate SUL carriers are selected from the SUL carriers in a refined indication mode, the accuracy of SUL carrier selection is improved, and the uplink performance is improved.

Drawings

Fig. 1 is a schematic flow diagram based on downlink cell existence;

fig. 2 is a schematic flowchart of a method for determining an SUL carrier according to an embodiment of the present disclosure;

fig. 3 is a schematic flow chart of another SUL carrier determination method according to an embodiment of the present application;

fig. 4 is a schematic flow chart of another method for determining an SUL carrier according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an SUL carrier determination apparatus according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another SUL carrier determination apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an SUL carrier determination system according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples.

In the related art, the SUL carriers are defined in a manner of associating downlink carriers with uplink carriers one by one, that is, how to obtain an association relationship is defined as follows:

in a first mode, the association relationship is obtained based on the broadcast message: when a terminal (which can also be understood as a user or User Equipment (UE)) is in an idle state, the terminal acquires information such as a frame structure, a system frequency point, a bandwidth, and a SUL uplink common channel configuration (including an association relationship) by issuing a broadcast message SIB1 on a receiving base station side, including information of a Physical Random Access Channel (PRACH) (a time-frequency resource, an uplink carrier selection threshold, and the like), a Physical Uplink Control Channel (PUCCH), and two PRACH channels.

In the second mode, the association relationship is configured based on the RRC message: when the terminal is in a connected state, the terminal acquires the association relationship by receiving an RRC reconfiguration message issued by the base station side.

The above two ways can be summarized as follows: the configuration message sent by the network side to the terminal side carries a downlink configuration and/or an uplink configuration and/or a plurality of supplemental uplink configurations, and in each supplemental uplink configuration, one supplemental uplink configuration may include 1 or a plurality of bandwidth part (BWP) configurations. In addition, the configuration message sent by the network side to the terminal side carries a downlink configuration and/or an uplink configuration, wherein one uplink configuration comprises a plurality of supplementary uplink configuration information. The configuration message sent by the network side to the terminal side may be a broadcast message or a dedicated signaling.

When the association relationship is configured, based on a downlink cell definition (i.e. a primary defined cell is used in SDL or TDD), in scenarios such as cell reselection, handover, redirection, and access failure, there are 3 possible procedures and problems as follows:

(1) as shown in fig. 1, if SDL (or TDD downlink) changes and SUL does not change, a random access procedure is required due to the association relationship, so that unnecessary service interruption delay is introduced;

(2) as shown in fig. 1, if both SDL (or TDD downlink) and SUL are changed, the SUL is also inaccurate due to the association relationship, thereby introducing the problem of uplink performance loss caused by inaccurate carrier selection;

(3) as shown in fig. 1, if the SDL (or TDD downlink) is not changed and the SUL is changed, the SDL (or TDD downlink) must be referred to, so that there is no protocol flow support defined by the SUL as a main body, and a complete flow based on the SUL (which can also be understood as a complete function based on the SUL) needs to be indirectly implemented or introduced through the SDL (or TDD downlink) or other manners.

In addition, when the coverage difference between the SDL (or TDD downlink) and the SUL is too large, for example, the SUL is a 2.3GHz band (low frequency band), and the SDL (or TDD downlink) is a 4.9GHz band (medium-high frequency band), under the condition that the SUL is changed (the SDL (or TDD downlink) is changed or unchanged), the problem of inaccuracy of the SUL selection may be caused, thereby causing inaccurate access, and further causing uplink interference and lifting or uplink performance loss.

In summary, when the association scheme is adopted, inaccuracy of SUL selection may be caused, so that inaccurate access may be caused, and uplink performance may be reduced.

Based on this, in various embodiments of the present application, the terminal reports the SUL carrier capability supported by the terminal, and the network side selects the SUL carrier for the terminal based on the SUL carrier (also referred to as SUL) capability of the terminal.

According to the scheme of the embodiment of the application, the SUL carrier wave is selected for the terminal according to the SUL carrier wave capability of the terminal, so that the more suitable SUL carrier wave is selected from the plurality of SUL carrier waves through a refined indication mode, the accuracy of SUL carrier wave selection is improved, and the uplink performance is improved.

An embodiment of the present application provides a method for determining an SUL carrier, which is applied to a terminal, and as shown in fig. 2, the method includes:

step 201: reporting the first information to a network side; the first information represents the SUL carrier capability supported by the terminal;

step 202: receiving second information sent by a network side; the second information represents configuration information of the SUL carrier.

Wherein the first information may include at least one of:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

Here, the maximum number of SUL carrier scheduling refers to: if the terminal supports a plurality of SUL carriers, the maximum number of SUL carriers is scheduled;

the maximum number of simultaneous SUL carriers is: if the terminal supports multiple SUL carriers, the maximum number of SUL carriers is sent at the same time.

The maximum number of the SUL carrier scheduling may also be understood as a format of dynamic scheduling of the SUL carrier supported by the terminal.

The maximum number of simultaneous SUL carriers may also be understood as the maximum number of concurrent SUL carriers supported by the terminal.

In actual application, in step 202, after receiving the first information, the network side determines (or understands as configured) the SUL carrier for the terminal based on the first information. That is, the terminal receives the second information transmitted by the network side based on the first information. According to different application scenarios, the network side may indicate different SUL carriers of the terminal, which may specifically include the following cases:

in the first case, the network side may send, to the terminal, SUL carrier configuration information associated with a downlink carrier of a cell in which the terminal is located, based on the capability of the terminal.

Based on this, in an embodiment, the second information represents configuration information of N SUL carriers, where N is an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

In the second case, the network side may select at least one SUL carrier from the N SUL carriers based on the capability of the terminal, and send configuration information of the at least one SUL carrier of the configured N SUL carriers to the terminal.

Based on this, in an embodiment, the second information indicates at least one SUL carrier of the N SUL carriers configured for the terminal.

In a third case, the network side may select at least one SUL carrier to be activated from the N SUL carriers based on the capability of the terminal, and send configuration information of the at least one SUL carrier to be activated to the terminal.

Based on this, in an embodiment, the second information indicates M SUL carriers activated from among N SUL carriers configured for the terminal, where M is an integer greater than or equal to 1.

In a fourth case, the network side may further select at least one SUL carrier from the M activated SUL carriers based on the terminal capability, and indicate the selected SUL carrier to the terminal.

Based on this, in an embodiment, the second information indicates at least one SUL carrier of M SUL carriers activated by the terminal; the activated M SUL carriers belong to N SUL carriers configured on the network side.

In the second, third, and fourth cases, before step 202 is executed, the network side needs to configure the SUL carriers associated with the downlink carriers to the terminal, that is, configure the association relationship, for example, configure 1 SDL (or TDD downlink) + N SULs, where the SDL (or TDD downlink) of the serving cell of the terminal (also may be referred to as) defines N associated SUL carriers and corresponding carrier identifiers (english may be expressed as indicators), so that the network side selects a more suitable SUL carrier from the N SUL carriers for the terminal.

Based on this, in an embodiment, the method may further include:

In the fourth case, before performing step 202, the network side needs to configure, for the terminal, M SUL carriers activated by the terminal in addition to the SUL carrier associated with the downlink carrier.

Based on this, in an embodiment, the method may further include:

The terminal can receive the third information sent by the network side through one of the following modes:

an RRC message;

MAC CE；

DCI。

here, after the terminal activates M SUL carriers simultaneously, the N SUL carriers need not be measured in real time, and only the M SUL carriers need to be maintained, so that power consumption of the terminal is saved, and power saving of the terminal is facilitated.

In practical application, for an idle terminal, the information of the N SUL carriers associated with the configured downlink carrier may be issued through a system message (such as SIB1) in a power-on or initial access process. For a connected terminal, as described below, the information of the N SUL carriers associated with the configured downlink carrier may be issued through an RRC message (which may be referred to as an RRC signaling, such as an RRC reconfiguration message) in the processes of cell handover, reselection, cell access, and the like.

In step 201, in actual application, the first information may be reported simultaneously when the terminal capability is reported; the first information may be reported, for example, by a new Information Element (IE).

In practical application, the terminal may only support 1 SUL carrier, and in order to enable the terminal to operate normally, the SUL carrier is the SUL carrier supported by the terminal.

Based on this, in an embodiment, in a case that the first information indicates that the terminal only supports one SUL carrier (i.e., when the first information indicates that the terminal only supports one SUL carrier), the SUL carrier corresponding to the second information is the one SUL carrier supported by the terminal.

Wherein, in step 202, the terminal may receive the second information by one of the following methods:

an RRC message;

MAC CE；

DCI。

correspondingly, an embodiment of the present application further provides a method for determining an SUL carrier, which is applied to a network device (specifically, a base station), and as shown in fig. 3, the method includes:

step 301: receiving first information reported by a terminal; the first information represents the SUL carrier capability supported by the terminal;

wherein the first information comprises at least one of:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

Step 302: sending second information to the terminal; the second information represents configuration information of the SUL carrier.

After receiving the first information, the network device determines an SUL carrier based on the first information, so as to configure the SUL carrier for the terminal. According to different application scenarios, the network device may indicate different SUL carriers of the terminal, which may specifically include the following cases:

in a first case, the network device may send, to the terminal, SUL carrier configuration information associated with a downlink carrier of a cell in which the terminal is located, based on the capability of the terminal.

In the second case, the network device may select at least one SUL carrier from the N SUL carriers based on the capability of the terminal, and send configuration information of the at least one SUL carrier from the configured N SUL carriers to the terminal, so that a best SUL can be selected, thereby further improving the uplink performance.

Based on this, in an embodiment, the second information indicates at least one SUL carrier of N SUL carriers configured for the terminal.

In a third case, the network device may select at least one SUL carrier to be activated from the N SUL carriers based on the capability of the terminal, and send configuration information of the at least one SUL carrier to be activated to the terminal.

In a fourth case, the network device may further select at least one SUL carrier from the M activated SUL carriers based on the terminal capability, and indicate the SUL carrier to the terminal, so that a best SUL can be selected, thereby further improving the uplink performance.

Here, in the second case, the third case and the fourth case, before performing step 302, the network device further needs to configure a SUL carrier associated with a downlink carrier for the terminal.

Based on this, in an embodiment, the method may further include:

and configuring N SUL carrier information associated with the downlink carrier for the cell where the terminal is located.

In an embodiment, the network device may send the second information to the terminal by one of the following methods:

an RRC message;

MAC CE；

DCI。

here, in practical application, the network device may select one of the above manners to send the second information to the terminal according to needs.

In the fourth case, before step 302 is executed, the network device needs to indicate M SUL carriers activated by the terminal, in addition to the SUL carriers associated with the downlink carriers configured for the terminal.

Based on this, in an embodiment, the method may further include:

Here, in practical application, the network device may send the third information to the terminal by one of the following manners:

an RRC message;

MAC CE；

DCI。

in practical application, one of the above manners may be selected as required to send the third information to the terminal.

In an embodiment, the network device determines a SUL carrier based on the first information.

Specifically, in a case that the first information indicates that the terminal supports only one SUL carrier, that is, when the first information indicates that the terminal supports only one SUL carrier, it is determined that the carrier is one SUL carrier supported by the terminal.

In a case where the first information indicates that the terminal supports a plurality of SUL carriers, i.e., when the first information indicates that the terminal supports a plurality of SUL carriers, at least one SUL carrier is selected.

Here, in actual application, the network device may select the SUL carrier according to the capability reported by the terminal, by combining the uplink reference signal information and considering the measurement result of the uplink and downlink coverage difference and the QCI service class, so as to select a more appropriate SUL carrier.

Based on this, in an embodiment, when the first information indicates that the terminal supports multiple SUL carriers, the SUL carriers are determined based on the first information, the strength of the uplink reference signal, the measurement result of the uplink and downlink coverage difference, and the QCI of the service.

Here, in practical application, the uplink reference signal may be an SRS or the like.

Specifically, the network device selects M SUL carriers from N SUL carriers configured for the terminal based on the strength of the uplink reference signal;

at least one carrier is determined (i.e., selected) from the M SUL carriers based on the measurement result of the uplink and downlink coverage difference and the QCI of the service.

Exemplarily, assuming that a terminal supports multiple SUL carriers, the maximum number of the supported SUL dynamic scheduling is M, and the maximum number of the supported concurrent SUL carriers is M), the network device selects appropriate M SUL carriers from N SUL carriers based on SRS information of the terminal (specifically, each SUL carrier may be identified by a carrier identifier (indicator);

specifically, for an uplink SRS sent by the terminal, for a certain SUL carrier (indicator is x) in N SUL carriers, if a ratio of Reference Signal Received Power (RSRP) of the SRS received by the SUL carrier and other SUL carriers (indicator is y or z) in the N SUL carriers is greater than a preset threshold (called THR1), the SUL carrier is considered as a selected SUL carrier, that is, the terminal belongs to the SUL carrier, and so on until M SUL carriers are found, and the terminal is indicated to activate the M SUL carriers through a MAC CE;

the network device then configures a threshold (i.e., absThreshSS-blocks con association) and a plurality of Synchronization Signal Blocks (SSBs) (i.e., nrofSS-blocks toaverage) via an RRC message, and/or configuring a threshold (absThreshCSI-RS-association) and a plurality of channel state information reference signals (CSI-RS) (i.e., nro CSI-RS-resources to average), (which thresholds may be referred to as THR2), determining an RSRP average (i.e., L3-RSRP) of SSBs of nrofSS-blocks to average that meets the absThreshSS-blocks association threshold requirement, and/or the nroCSI-RS-ResourcesToAvage CSI-RS RSRP mean value (i.e. L3-RSRP) that meets the absThreshCSI-RS-correlation threshold requirement, namely, L3-RSRP meeting the preset threshold THR2 is determined from L3-RSRP corresponding to M SUL carriers, then, combining the SUL and the SDL to cover the difference Offset (which can be obtained through the current network test result), so as to obtain L3-RSRP (L3-RSRP (determined by the network device) + Offset; and acquiring an SUL service priority sequence, wherein the network device can use an SSB Index (Index) to distinguish each SSB, and correspondingly, can use a CSI-RS Index to distinguish each CSI-RS. The service priority sequence comprises a one-to-one association relationship between the SUL indicators and the QCIs, that is, each SUL indicator corresponds to one QCI; QCIs corresponding to a plurality of SUL indicators may be the same; illustratively, QCI is 5 and corresponding SUL indicators are 2, 3, 4, respectively.

Finally, the network device combines the SUL indicators corresponding to the maximum L3-RSRP of the L3-RSRP selected by the QCI of the UE, in other words, selects the SUL indicator corresponding to the maximum L3-RSRP of the L3-RSRP corresponding to the QCI according to the QCI of the UE (of course, at least two SUL indicators with stronger signal strength may also be selected as needed), that is, the SUL indicators of the SUL carriers are determined, and then the found SUL carrier related common channel configuration is informed through the second information, so as to perform the processes of uplink access, service transmission and the like.

After the network device determines M SUL carriers, when the MAC CE indicates the terminal to activate the M SUL carriers, the SUL indicators and the MAC CE are in one-to-one correspondence in an ascending order, for example, if the SUL indicator is x, and M SUL carriers include a SUL carrier of which x is 2, then the MAC CE is 001000000 ….0 (the number of bits is N).

In practical applications, the network device may not activate M SUL carriers, but directly select a carrier.

Based on this, in an embodiment, the selecting at least one SUL carrier from the plurality of SUL carriers based on the first information, the strength of the uplink reference signal, the measurement result of the uplink and downlink coverage difference, and the QCI of the service includes:

selecting Q SUL carriers from N SUL carriers configured for the terminal based on the measurement result of the uplink and downlink coverage difference and the QCI of the service; q is an integer greater than or equal to 1 and less than or equal to N;

Illustratively, the network device configures the thresholds (i.e., absThreshSS-BlocksConsolidation) and SSB (i.e., nrofSS-BlocksToAvage) via RRC messages, and/or configuring a threshold (absThreshCSI-RS-association) and a plurality of channel state information reference signals (CSI-RS) (i.e., nro CSI-RS-resources to average), (which thresholds may be referred to as THR2), determining an RSRP average (i.e., L3-RSRP) of SSBs of nrofSS-blocks to average that meets the absThreshSS-blocks association threshold requirement, and/or the nroCSI-RS-ResourcesToAvage CSI-RS RSRP mean value (i.e. L3-RSRP) that meets the absThreshCSI-RS-correlation threshold requirement, namely, L3-RSRP meeting the preset threshold THR2 is determined from L3-RSRP corresponding to M SUL carriers, then, combining the SUL and the SDL to cover the difference Offset (which can be obtained through the current network test result), so as to obtain L3-RSRP (L3-RSRP (determined by the network device) + Offset; selecting Q SUL carriers from the N SUL carriers according to the obtained L3-RSRP and the QCI of each type of service of the UE; when selecting the SUL carrier, selecting the SUL carrier with large L3-RSRP by combining with the service QCI; exemplarily, assuming that QCI is 5 and corresponding SUL indicators are 2, 3 and 4, respectively, the SUL indicator with the largest L3-RSRP among the three SUL indicators is selected according to the traffic QCI.

Then, for an uplink SRS transmitted by the terminal, for a certain SUL carrier (indicator is x) in the Q SUL carriers, if a ratio of RSRP of the SRS received by the SUL carrier and another SUL carrier (indicator is y or z) in the N SUL carriers is greater than a preset threshold (called THR1), the SUL carrier is considered as a selected SUL carrier, that is, the terminal belongs to the SUL carrier, that is, the SUL carrier is determined; here, in actual application, after finding a selected SUL carrier, the method stops, and of course, at least two SUL indicators with stronger signal strength may also be selected as needed);

and finally, after the network equipment determines the SUL carrier, indicating the SUL carrier related common channel configuration determined by the terminal through the DCI to perform the processes of uplink access, service transmission and the like.

When the indication is performed by the DCI, the SUL indicators and the DCI correspond to each other in an ascending order, for example, when the SUL indicator is 3 and Q is 4, the DCI needs to use 2-bit indication to be 11.

As can be seen from the above example, the principle of selecting multiple SUL carriers based on the uplink SRS channel quality, and considering the measurement result of the uplink and downlink coverage difference and the QCI service category, the DCI information indicates the common channel configuration related to the SUL carriers of the user.

An embodiment of the present application further provides a method for determining an SUL carrier, as shown in fig. 4, the method includes:

step 401: the terminal reports first information to the network equipment; the first information represents the SUL carrier capability supported by the terminal;

wherein the first information comprises at least one of:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

Step 402: the network equipment sends second information to the terminal; the second information represents configuration information of the SUL carrier.

Here, it should be noted that specific processing procedures of the network device and the terminal have been described in detail above, and are not described herein again.

In the SUL carrier determination method provided by the embodiment of the application, a terminal reports first information to network equipment; the first information represents the SUL carrier capability supported by the terminal; wherein the first information comprises at least one of: whether the terminal supports a plurality of SUL carriers; the maximum number of SUL carriers scheduled; simultaneously transmitting the maximum number of SUL carriers; the network equipment sends second information to the terminal; the second information represents the configuration information of the SUL carriers, the terminal reports the SUL carrier capability supported by the terminal, and the network side selects the SUL carriers for the terminal based on the SUL carrier capability of the terminal, so that more appropriate SUL carriers are selected from a plurality of SUL carriers in a refined indication mode, the accuracy of SUL carrier selection is improved, the uplink access accuracy can be improved, the uplink interference lifting problem is solved, the uplink performance is further improved, and the uplink throughput of a user is effectively improved.

In order to implement the method according to the embodiment of the present application, an embodiment of the present application further provides an SUL carrier determining apparatus, which is disposed on a terminal, and as shown in fig. 5, the apparatus includes:

a reporting unit 501, configured to report the first information to a network side; the first information represents the SUL carrier capability supported by the terminal;

a first receiving unit 502, configured to receive second information sent by a network side; the second information represents configuration information of the SUL carrier; wherein the first information comprises at least one of:

whether the terminal supports a plurality of SUL carriers;

a maximum number of SUL carrier scheduling;

the maximum number of SUL carriers is transmitted simultaneously.

In an embodiment, the first receiving unit 502 is further configured to receive third information sent by a network side; the third information is used for indicating the terminal to activate M SUL carriers simultaneously, wherein M is an integer greater than or equal to 1.

In an embodiment, the first receiving unit 502 is specifically configured to receive third information sent by a network side through one of the following manners:

an RRC message;

MAC CE；

DCI。

in an embodiment, the first receiving unit 502 is specifically configured to receive the second information by one of the following manners:

an RRC message;

MAC CE；

DCI。

in an embodiment, the first receiving unit 502 is further configured to obtain information of N SUL carriers associated with a downlink carrier configured by a network side for a cell where the terminal is located; n is an integer greater than or equal to 1.

In practical application, the reporting unit 501 and the first receiving unit 502 may be implemented by a processor in the SUL carrier determination device in combination with a communication interface.

In order to implement the method on the network device side in the embodiment of the present application, an embodiment of the present application further provides an SUL carrier determining apparatus, which is disposed on a network device, and as shown in fig. 6, the apparatus includes:

a second receiving unit 601, configured to receive first information reported by a terminal; the first information represents the SUL carrier capability supported by the terminal;

a sending unit 602, configured to send second information to the terminal; the second information represents configuration information of the SUL carrier; wherein the first information comprises at least one of:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

In an embodiment, the apparatus may further include:

a determining unit configured to determine an SUL carrier based on the first information.

In an embodiment, the determining unit is specifically configured to:

and determining that the carrier is one SUL carrier supported by the terminal under the condition that the first information represents that the terminal only supports one SUL carrier.

In an embodiment, the determining unit is specifically configured to:

and selecting at least one SUL carrier under the condition that the first information indicates that the terminal supports a plurality of SUL carriers.

In an embodiment, the determining unit is specifically configured to:

and under the condition that the first information represents that the terminal supports a plurality of SUL carriers, determining the SUL carriers based on the first information, the strength of the uplink reference signal, the measurement result of the uplink and downlink coverage difference and the QCI of the service.

In an embodiment, the determining unit is specifically configured to:

selecting M SUL carriers to be activated by the terminal from N SUL carriers configured for the terminal based on the strength of the uplink reference signal; n represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located; n is an integer greater than or equal to 1; m is an integer greater than or equal to 1 and less than or equal to N;

the determining unit determines at least one carrier from the M SUL carriers based on a measurement result of the uplink and downlink coverage difference and the QCI of the service.

In an embodiment, the determining unit is specifically configured to:

selecting Q SUL carriers from N SUL carriers configured for the terminal based on the measurement result of the uplink and downlink coverage difference and the QCI of the service; n represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located; n is an integer greater than or equal to 1; q is an integer greater than or equal to 1 and less than or equal to N;

at least one carrier is selected from the Q SUL carriers based on the strength of the uplink reference signal.

In an embodiment, the sending unit 602 is further configured to send third information to the terminal; the third information indicates that the terminal activates M SUL carriers simultaneously.

In an embodiment, the sending unit 602 is specifically configured to send the third information to the terminal by one of the following manners:

an RRC message;

MAC CE；

DCI。

in an embodiment, the sending unit 602 is specifically configured to send the second information to the terminal by one of the following manners:

an RRC message;

MAC CE；

DCI。

in an embodiment, the apparatus may further include: a configuration unit, configured to configure, for a cell where the terminal is located, N pieces of SUL carrier information associated with a downlink carrier; n is an integer greater than or equal to 1.

In practice, the second receiving unit 601, the sending unit 602, and the configuring unit may be implemented by a processor in the SUL carrier determining apparatus in combination with a communication interface; the determining unit may be implemented by a processor in the SUL carrier determining device.

It should be noted that: the SUL carrier determining apparatus provided in the foregoing embodiment is only illustrated by the above-mentioned division of each program module when determining the SUL carrier, and in practical applications, the above-mentioned processing allocation may be completed by different program modules according to needs, that is, the internal structure of the apparatus is divided into different program modules to complete all or part of the above-mentioned processing. In addition, the SUL carrier determination apparatus provided in the foregoing embodiment and the SUL carrier determination method embodiment belong to the same concept, and details of a specific implementation process thereof are referred to as method embodiments and are not described herein again.

Based on the hardware implementation of the program module, and in order to implement the method on the terminal side in the embodiment of the present application, an embodiment of the present application further provides a terminal, as shown in fig. 7, where the terminal 700 includes:

a first communication interface 701, which is capable of performing information interaction with a network device;

the first processor 702 is connected to the first communication interface 701 to implement information interaction with a network device, and is configured to execute a method provided by one or more technical solutions of the terminal side when running a computer program. And the computer program is stored on the first memory 703.

Specifically, the first communication interface 701 is configured to:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

In an embodiment, the first communication interface 701 is further configured to receive third information sent by a network side; the third information is used for indicating the terminal to activate M SUL carriers simultaneously, wherein M is an integer greater than or equal to 1.

In an embodiment, the first communication interface 701 is specifically configured to receive third information sent by a network side through one of the following manners:

an RRC message;

MAC CE；

DCI。

in an embodiment, the first communication interface 701 is specifically configured to receive the second information through one of the following manners:

an RRC message;

MAC CE；

DCI。

in an embodiment, the first communication interface 701 is further configured to obtain information of N SUL carriers associated with a downlink carrier configured by a network side for a cell where the terminal is located; n is an integer greater than or equal to 1.

It should be noted that: the specific processes of the first processor 702 and the first communication interface 701 may be understood with reference to the above-described methods.

Of course, in practice, the various components in the terminal 700 are coupled together by a bus system 704. It is understood that the bus system 704 is used to enable communications among the components. The bus system 704 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 7 as the bus system 704.

The first memory 703 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 700. Examples of such data include: any computer program for operating on terminal 700.

The method disclosed in the embodiments of the present application can be applied to the first processor 702, or implemented by the first processor 702. The first processor 702 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the first processor 702. The first Processor 702 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 702 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the first memory 703, and the first processor 702 reads the information in the first memory 703 and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the terminal 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field-Programmable Gate arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

Based on the hardware implementation of the program module, and in order to implement the method on the network device side in the embodiment of the present application, an embodiment of the present application further provides a network device, as shown in fig. 8, where the network device 800 includes:

a second communication interface 801 capable of performing information interaction with a terminal;

the second processor 802 is connected to the second communication interface 801 to implement information interaction with a terminal, and is configured to execute the method provided by one or more technical solutions of the network device side when running a computer program. And the computer program is stored on the second memory 803.

Specifically, the second communication interface 801 is configured to:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

In an embodiment, the second processor 802 is configured to determine a SUL carrier based on the first information.

In an embodiment, the second processor 802 is specifically configured to:

selecting M SUL carriers from N SUL carriers configured for the terminal based on the strength of the uplink reference signal; n represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located; n is an integer greater than or equal to 1; m is an integer greater than or equal to 1 and less than or equal to N;

the second processor 802 determines at least one carrier from the M SUL carriers based on the measurement result of the uplink and downlink coverage difference and the QCI of the service.

In an embodiment, the second processor 802 is specifically configured to:

In an embodiment, the second communication interface 801 is further configured to send third information to the terminal; the third information indicates that the terminal activates M SUL carriers simultaneously.

In an embodiment, the second communication interface 801 is specifically configured to send third information to the terminal by one of the following methods:

an RRC message;

MAC CE；

DCI。

in an embodiment, the second communication interface 801 is specifically configured to send the second information to the terminal by one of the following ways:

an RRC message;

MAC CE；

DCI。

in an embodiment, the second processor 802 is further configured to configure, through the second communication interface 801, N SUL carrier information associated with a downlink carrier for a cell in which the terminal is located; n is an integer greater than or equal to 1.

It should be noted that: the specific processing procedures of the second communication interface 801 and the second processor 802 can be understood with reference to the above-described methods.

Of course, in practice, the various components in the network device 800 are coupled together by a bus system 804. It is understood that the bus system 804 is used to enable communications among the components. The bus system 804 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are identified in FIG. 8 as the bus system 804.

The second memory 803 in the embodiment of the present application is used for storing various types of data to support the operation of the network device 800. Examples of such data include: any computer program for operating on network device 800.

The method disclosed in the embodiment of the present application can be applied to the second processor 802, or implemented by the second processor 802. The second processor 802 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by an integrated logic circuit of hardware or an instruction in the form of software in the second processor 802. The second processor 802 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 802 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 803, and the second processor 802 reads the information in the second memory 803, and completes the steps of the foregoing method in conjunction with its hardware.

In an exemplary embodiment, the network device 800 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the aforementioned methods.

It is understood that the memories (the first memory 703 and the second memory 803) of the embodiments of the present application may be volatile memories or nonvolatile memories, and may include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a magnetic random access Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memories described in the embodiments of the present application are intended to comprise, without being limited to, these and any other suitable types of memory.

In order to implement the method provided by the embodiment of the present application, an embodiment of the present application further provides an SUL carrier determination system, as shown in fig. 9, where the system includes: network device 901 and terminal 902.

Here, it should be noted that: the specific processing procedures of the network device 901 and the terminal 902 have been described in detail above, and are not described herein again.

In an exemplary embodiment, the present application further provides a storage medium, specifically a computer storage medium, which is a computer readable storage medium, for example, including a first memory 703 storing a computer program, where the computer program is executable by a first processor 702 of a terminal 700 to complete the steps of the foregoing terminal-side method. For another example, the second memory 803 may be used to store a computer program that can be executed by the second processor 802 of the network device 800 to perform the steps described above for the network device side method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The technical means described in the embodiments of the present application may be arbitrarily combined without conflict.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.

Claims

1. A method for determining a supplementary uplink SUL carrier, applied to a terminal, includes:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

2. The method according to claim 1, wherein the second information characterizes configuration information of N SUL carriers, N being an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

3. The method of claim 1, wherein the second information indicates at least one of N SUL carriers configured for the terminal; n is an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

4. The method according to claim 1, wherein the second information indicates M active SUL carriers among N SUL carriers configured for the terminal, N being an integer greater than or equal to 1; m is an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

5. The method of claim 1, wherein the second information indicates at least one of M SUL carriers activated by the terminal; the activated M SUL carriers belong to N SUL carriers configured on the network side; m is an integer greater than or equal to 1; n represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located; n is an integer greater than or equal to 1.

6. The method of claim 5, further comprising:

7. The method of claim 6, wherein the third information sent by the network side is received by one of the following methods:

a radio resource control, RRC, message;

a media access control unit (MAC CE);

and downlink control information DCI.

8. The method of claim 3, 5, 6 or 7, further comprising:

9. The method according to any of claims 1 to 7, wherein the second information is received by one of:

an RRC message;

MAC CE；

DCI。

10. a SUL carrier determining method is applied to a network device and comprises the following steps:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

11. The method of claim 10, wherein the second information represents configuration information of N SUL carriers, where N is an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

12. The method of claim 10, wherein the second information indicates at least one of N SUL carriers configured for the terminal; n is an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

13. The method according to claim 10, wherein the second information indicates M active SUL carriers among N SUL carriers configured for the terminal, N being an integer greater than or equal to 1; m is an integer greater than or equal to 1; and N represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located.

14. The method of claim 10, wherein the second information indicates at least one of M SUL carriers activated by the terminal; the activated M SUL carriers belong to N SUL carriers configured on the network side; m is an integer greater than or equal to 1; n represents the SUL carrier number associated with the downlink carrier of the cell where the terminal is located; n is an integer greater than or equal to 1.

15. The method of claim 14, further comprising:

16. The method of claim 15, wherein the third information is sent to the terminal by one of:

an RRC message;

MAC CE；

DCI。

17. the method of claim 12, 14, 15 or 16, further comprising:

18. The method of claim 10, further comprising:

determining a SUL carrier based on the first information.

19. The method of claim 18, wherein the determining the SUL carrier based on the first information comprises:

20. The method of claim 19, wherein the determining the SUL carrier based on the first information, the strength of the uplink reference signal, the measurement result of the uplink and downlink coverage difference, and the service quality level of the service comprises:

21. The method of claim 19, wherein determining the SUL carrier based on the first information, the strength of the uplink reference signal, the measurement result of the uplink and downlink coverage difference, and the service quality level of the service comprises:

22. An SUL carrier determination apparatus, comprising:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

23. An SUL carrier determination apparatus, comprising:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

24. A terminal, comprising: a first communication interface and a first processor; wherein the content of the first and second substances,

the first communication interface is configured to:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

25. A network device, comprising: a second communication interface and a second processor; wherein the content of the first and second substances,

the second communication interface is configured to:

sending second information to the terminal; the second information represents the configuration information of the SUL carrier; wherein the first information comprises at least one of:

whether the terminal supports a plurality of SUL carriers;

the maximum number of SUL carriers scheduled;

the maximum number of SUL carriers is transmitted simultaneously.

26. A terminal, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is adapted to perform the steps of the method of any one of claims 1 to 9 when running the computer program.

27. A network device, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is adapted to perform the steps of the method of any one of claims 10 to 21 when running the computer program.

28. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 9 or the steps of the method of any one of claims 10 to 21 when executed by a processor.