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CN110880961A - Method and equipment for confirming activation or release of SPS configuration - Google Patents

Method and equipment for confirming activation or release of SPS configuration Download PDF

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Publication number
CN110880961A
CN110880961A CN201811035051.2A CN201811035051A CN110880961A CN 110880961 A CN110880961 A CN 110880961A CN 201811035051 A CN201811035051 A CN 201811035051A CN 110880961 A CN110880961 A CN 110880961A
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sps
activation
release
mac
format
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Chinese (zh)
Inventor
刘建颖
周欣
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Potevio Information Technology Co Ltd
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Potevio Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a method for confirming activation or release of SPS configuration, which is applied to a PC5 port of V2X communication and comprises the following steps: if the UE receives a PDCCH scrambled by a SL SPS V-RNTI by a higher layer configuration, for the SL SPS configuration on each carrier: triggering a SL SPS activation confirmation if the content of the PDCCH indicates SPS activation; triggering a SL SPS release acknowledgement if the content of the PDCCH indicates SPS release; if the SL SPS activation/release confirmation is triggered, generating the SL SPS activation/confirmation or the SL SPS release confirmation comprising the carrier information and the SPS configuration information when the UE has available uplink shared channel UL-SCH resources for transmitting the SL SPS activation/release confirmation in the current TTI. The application also discloses a corresponding user equipment. By applying the technical scheme disclosed by the application, the network side can clearly know the carrier wave which correctly receives the SPS activating/releasing command and the SPS configuration by the UE in the application scene of multi-carrier multi-SPS configuration.

Description

Method and equipment for confirming activation or release of SPS configuration
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for confirming activation or release of SPS configuration.
Background
In V2X (vehicle to outside information exchange) communication, UU port communication and PC5 port communication are divided, UU port communication refers to communication between a UE supporting V2X function and a base station, and PC5 port communication refers to communication between UEs supporting V2X function. The base station may configure SPS (Semi-Persistent Scheduling) Scheduling mode for UU port and PC5 port:
the base station activates the SPS through a PDCCH (physical downlink control channel) scrambled by a UL Semi-Persistent Scheduling V-RNTI (for a UU port) or a SL Semi-Persistent Scheduling V-RNTI (for a PC5 port), and then the UE periodically transmits data on resources indicated by the PDCCH. If the base station wants to release the SPS resources, the SPS resources are released by using the PDCCH scrambled by the same RNTI. Wherein, UL is an abbreviation of Uplink (Uplink), SL is an abbreviation of Sidelink (Sidelink), and V-RNTI is an abbreviation of Vehicle Radio Network temporary identity (Vehicle Radio Network temporary identity).
According to the existing MAC layer protocol, there is only SPS activation/release acknowledgement of UU port, which is triggered by UE through MAC CE (MAC control element) of zero bit and only for one SPS configuration.
One prior art proposal should also support SPS activation/release acknowledgement (i.e., acknowledgement of SPS activation/release command sent by the base station to the UE) over PC5 because: if the network side cannot know whether the UE correctly receives the SPS activation/release command from the PC5, problems such as resource waste and resource conflict may be caused. Such as: if the network releases the SL SPS, but the UE does not receive the SPS release command, the UE will reuse the resources that have been released by the network, and the network may allocate the released resources to other UEs, resulting in resource collision. In addition, since the Uu port and the PC5 port can currently activate 8 SPS configurations at the same time at most, this prior art uses a MAC CE of 8bits to acknowledge the acknowledgement of SPS activation/release commands of the Uu port and the PC5 port, each bit representing one SPS configuration.
In the PC5 port carrier aggregation scenario in eV2X, multiple SPS configurations may be activated simultaneously on multiple carriers, such as:
1) for different SPS services, the available set of carriers is different, and different SPS services may be transmitted on different carriers at the same time;
2) for an SPS service, if a MAC PDU to be transmitted is large, in order to increase a transmission bandwidth and increase a data transmission rate, the UE may transmit the MAC PDU separately on two carriers;
3) for one SPS service, if it is desired to improve the reliability of data transmission, the UE may copy the data packet and transmit it over two carriers.
It can be seen that, in a scenario that the existing R-14V2X system supports PC5 port carrier aggregation, if the UE is configured with an SPS scheduling manner and activates multiple SPS configurations on multiple carriers at the same time, at this time, if the UE still confirms the SPS activation/release command indicated by the PDCCH through a 0-bit or 8-bit MAC CE, the network side cannot know which carrier the UE confirms the SPS activation/release command on, and therefore, how to confirm the multiple SPS configurations on the multiple carriers of the PC5 port is an urgent technical problem to be solved.
Disclosure of Invention
The application provides a method for confirming activation or release of SPS configuration and user equipment, so that a network side can clearly know that UE correctly receives carriers of an SPS activation/release command and the SPS configuration in an application scene of multi-carrier multi-SPS configuration.
The application discloses a method for confirming activation or release of semi-persistent scheduling (SPS) configuration, which is applied to a PC5 port of vehicle-to-outside V2X communication and comprises the following steps:
if the user equipment UE receives the physical downlink control channel PDCCH scrambled by the radio network temporary identifier SLPPS V-RNTI of the side link through high-level configuration, for SL SPS configuration on each carrier:
triggering a SL SPS activation confirmation if the content of the PDCCH indicates SPS activation;
triggering a SL SPS release acknowledgement if the content of the PDCCH indicates SPS release;
if the SL SPS activation/release confirmation is triggered, generating the SL SPS activation/release confirmation or the SL SPS release confirmation comprising the carrier information and the SPS configuration information when the UE has available uplink shared channel UL-SCH resources for transmitting the SL SPS activation/release confirmation in the current transmission time interval TTI.
Preferably, the generating the SL SPS activation/release confirmation including the carrier information and the SPS configuration information includes:
generating a SL SPS activation/release confirmation comprising carrier information and SPS configuration information by adopting a media access control unit MAC CE format I or MAC CE format II; wherein:
MAC CE format one is: by field CiThe different values of (a) respectively indicate whether the current carrier i has SPS service transmission, and the range of i is from 0 to 7; using field SPSjThe different values of (a) respectively indicate the activation/deactivation state of an SPS configuration j on a carrier transmitted by the SPS service, and the range of the j is from 1 to 8;
MAC CE format two is: using field SPSjThe different values of (a) respectively indicate the activation/deactivation states of SPS configuration j, and the range of j is from 1 to 8; by field CiRespectively indicate whether the SPS configuration j is activated on the carrier i under the condition that the SPS j is activated.
Preferably, the generating the SL SPS activation/release confirmation including the carrier information and the SPS configuration information by using the MAC CE format one or the MAC CE format two includes:
if the number of the carriers transmitted by the SPS service is less than a set first threshold, the UE uses the MAC CE format to generate the SL SPS activation/release confirmation;
and if the activated SPS configuration is smaller than the set second threshold, the UE generates the SLSPS activation/release confirmation by using the MAC CE format two.
Preferably, the generating the SL SPS activation/release confirmation including the carrier information and the SPS configuration information by using the MAC CE format one or the MAC CE format two includes:
if the SL SPS activation/release acknowledgement can only be generated by using the MAC CE format one, the UE generates the SL SPS activation/release acknowledgement by using the MAC CE format one;
if the SL SPS activation/release acknowledgment can only be generated using MAC CE format two, the UE generates the SL SPS activation/release acknowledgment using MAC CE format two.
Preferably, the method further comprises:
if a SL SPS activation/release acknowledgement is triggered, if no UL-SCH resources are available within the current TTI; alternatively, if the available UL-SCH resources do not meet the logical channel priority LCP restriction of the logical channel LCH that triggers the SL SPS activation/release acknowledgment, the generation of the SL SPS activation/release acknowledgment is cancelled.
The application also discloses a user equipment, which is applied to V2X communication and is used for the activation/release confirmation of the SPS configuration of the PC5 port, and the user equipment comprises: trigger the affirmation module and confirm the generation module, wherein:
the trigger confirmation module is used for judging the SL SPS configuration on each carrier when the user equipment receives the PDCCH scrambled by the SL SPS V-RNTI by high-level configuration, triggering SL SPS activation confirmation if the content of the PDCCH indicates SPS activation, and informing the confirmation generation module; if the content of the PDCCH indicates SPS release, triggering SL SPS release confirmation, and informing the confirmation generation module;
and the acknowledgement generating module is used for generating a SL SPS activation/acknowledgement or a SL SPS release acknowledgement comprising carrier information and SPS configuration information when the UE has available UL-SCH resources for transmitting the SL SPS activation/release acknowledgement in the current TTI according to the notification of the trigger acknowledgement module.
Preferably, the acknowledgement generating module is configured to generate a SL SPS activation/release acknowledgement including carrier information and SPS configuration information by using a MAC CE format one or a MAC CE format two; wherein:
MAC CE format one is: by field CiThe different values of (a) respectively indicate whether the current carrier i has SPS service transmission, and the range of i is from 0 to 7; using field SPSjThe different values of (a) respectively indicate the activation/deactivation state of an SPS configuration j on a carrier transmitted by the SPS service, and the range of the j is from 1 to 8;
MAC CE format two is: using field SPSjThe different values of (a) respectively indicate the activation/deactivation states of SPS configuration j, and the range of j is from 1 to 8; by field CiRespectively indicate whether the SPS configuration j is activated on the carrier i under the condition that the SPS j is activated.
Preferably, the confirmation generation module is configured to perform the following operations:
if the number of the carriers transmitted by the SPS service is less than a set first threshold, generating the SL SPS activation/release confirmation by using a first MAC CE format;
generating the SL SPS activation/release acknowledgement using MAC CE format two if the activated SPS configuration is less than a set second threshold.
Preferably, the confirmation generation module is configured to perform the following operations:
if the SL SPS activation/release acknowledgement can only be generated using MAC CE format one, then the SL SPS activation/release acknowledgement is generated using MAC CE format one;
if the SL SPS activation/release acknowledgement can only be generated using MAC CE format two, then the SL SPS activation/release acknowledgement is generated using MAC CE format two.
Preferably, the confirmation generation module is further configured to perform the following operations:
if a SL SPS activation/release acknowledgement is triggered, if no UL-SCH resources are available within the current TTI; alternatively, if the available UL-SCH resources do not meet the logical channel priority LCP restriction of the logical channel LCH that triggers the SL SPS activation/release acknowledgment, the generation of the SL SPS activation/release acknowledgment is cancelled.
According to the technical scheme, the SL SPS activation/confirmation or the SL SPS release confirmation comprising the carrier information and the SPS configuration information is generated through two MACCE formats comprising the carrier information and the SPS configuration information, so that a network side can clearly know that the UE correctly receives the carrier and the SPS configuration of the SPS activation/release command in an application scene of multi-carrier multi-SPS configuration, and the problems of resource waste, resource conflict and the like are solved.
Drawings
FIG. 1 is a diagram illustrating a format of a MAC CE according to the present invention;
FIG. 2 is a diagram illustrating a format two of the MAC CE according to the present invention;
FIG. 3 is a diagram of a representation in MAC CE Format one in accordance with an exemplary first aspect of the present invention;
FIG. 4 is a diagram of a MAC CE format two representation in an example one of the present invention;
FIG. 5 is a diagram of a representation in MAC CE format one in example two of the present invention;
FIG. 6 is a diagram of a MAC CE format two representation in example two of the present invention;
fig. 7 is a schematic diagram of a preferred ue configuration according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by referring to the accompanying drawings and examples.
In order to solve the problems existing in the prior art, the invention provides two MAC CE formats for confirming the SPS activating/releasing command of the PC5 port, wherein the two MAC CE formats both comprise carrier information and SPS configuration information, so that the advantage is that after the UE sends the MAC CE to the base station, the base station can clearly know which SPS activating/releasing command is correctly received by the UE on which carrier by decoding the MAC CE, and then the base station can take further actions according to the received MAC CE, for example, when the base station configures the SPS service on a certain carrier, but does not receive the SPS activating/releasing confirmation on the carrier, the base station can re-issue the PDCCH related to the SPS activating/releasing command on the carrier.
1. The MAC CE format proposed by the invention:
the invention proposes: under a carrier aggregation scene in a V2X system, a UE may confirm an SPS activation/release command of a PC5 port issued by a network through two MAC CE formats, where both the two MAC CE formats include carrier information and SPS configuration information, so that the network can more clearly know which SPS activation/release command is correctly received on which carrier by the UE through the two MAC CEs. The two MAC CE formats proposed by the present invention are explained in detail below with reference to the accompanying drawings.
The first format is as follows:
fig. 1 is a schematic diagram of a format of a MAC CE according to the present invention, see fig. 1:
-Ci: the field indicates whether the current carrier i has SPS service transmission, and the range of i is from 0 to 7. CiThe field is set to "1",and indicating that the SPS service transmission exists on the current carrier i, setting the SPS service transmission to be 0, and indicating that the SPS service transmission does not exist on the current carrier i. Of course, the opposite indication may be provided, namely: ciThe field is set to "1" to indicate that there is no SPS service transmission on the current carrier i, and is set to "0" to indicate that there is SPS service transmission on the current carrier i. Similar arrangements will not be described in detail below.
-SPSj: this field indicates on the carrier that there is SPS traffic transmission (i.e., C)i1) the state of SPS configuration j, j ranging from 1 to 8. The SPSj field is set to "1" indicating SPS configuration j is active, and is set to "0" indicating SPS configuration j is inactive/deactivated. If there is no SPS service on a certain carrier (i.e. C)i0), then there is no SPS corresponding to that carrierjAnd (j is 1-8) fields.
And a second format:
fig. 2 is a diagram of a format two of the MAC CE according to the present invention, which is shown in fig. 2:
-SPSj: this field indicates the state of SPS configuration j, j ranging from 1 to 8, SPSjThe field is set to "1" indicating SPS configuration j is active, and set to "0" indicating SPS configuration j is not active/deactivated.
-Ci: this field is indicated in SPSjActivation (i.e. SPS)j1), whether the SPS configuration j, C is activated on carrier i or notiThe field is set to "1" indicating that SPS configuration j is activated on this carrier, and is set to "0" indicating that SPS configuration j is not activated/deactivated on this carrier. If there is no SPS configuration (i.e. SPS)j0), then there is no C corresponding to that configurationiAnd (i is 0-8) field.
2. The invention uses the MAC CE format:
the use of the MAC CE format can be implemented in 3 ways, respectively as follows:
the first mode is as follows: an SPS activation/release acknowledgement is constructed using MAC CE format one to acknowledge the Sidelink SPS activation/release command, defining a new Logical Channel Identification (LCID) identification for the MAC CE format.
The second mode is as follows: and constructing the SPS activation/release confirmation by using the MAC CE format two so as to confirm the Sidelink SPS activation/release command, and defining a new LCID for the MAC CE format.
The third mode is as follows: the SPS activation/release confirmation may be constructed using either the MAC CE format one or the MAC CE format two to confirm the Sidelink SPS activation/release command, and a new LCID identifier is defined for each of the two MAC CE formats. The UE may then select a different MAC CE format to acknowledge the SPS activation/release command according to different scenarios, such as:
example one: suppose that the UE is currently only on two carriers C0And C1SPS service is transmitted, 4 SPS configurations are activated on each carrier: SPS1、SPS2、SPS3And SPS4If represented by format one and format two, respectively, SPS activation/release acknowledgements as shown in fig. 3 and 4 will result. Referring to fig. 3, if represented by format one, the MAC CE occupies only 3 octets; referring to fig. 4, if format two is used, the MAC CE takes 5 octets, so format one is suitable for the case where the UE uses fewer carriers to transmit SPS traffic, and the signaling overhead is smaller in this case.
Example two: suppose the UE is currently on four carriers C0、C1、C2And C3SPS service is transmitted, and 2 SPS configurations are activated on each carrier: SPS1And SPS2If represented by format one and format two, respectively, SPS activation/release acknowledgements as shown in fig. 5 and 6 will result. Referring to fig. 5, if expressed in format one, the MAC CE takes 5 octets; referring to fig. 6, if format two is used, the MAC CE only occupies 3 octets, and thus, format two is suitable for the case where the activated SPS configuration is less, in which case the signaling overhead is less.
3. Sidelink SPS activation/release command confirmation process
Figure BDA0001790651660000081
Condition for triggering sildelink SPS activation/release command acknowledgement:
if the UE receives a PDCCH scrambled by a SL SPS V-RNTI by a higher layer configuration, the UE will perform the following operations for the SL SPS configuration on each carrier:
triggering a Sidelink SPS activation acknowledgement if the content of the PDCCH indicates SPS activation; in addition, the UE determines the HARQ retransmission number and the subframe set used for transmitting SCI (Sidelink Control Information) and SL-SCH (Sidelink Shared Channel) by using the received authorization, and considers the received authorization as a configured SIDelink authorization;
triggering a Sidelink SPS release confirmation if the content of the PDCCH indicates SPS release; in addition, the UE clears the configured corresponding sildelink grant.
Figure BDA0001790651660000082
If acknowledgement of the Sidelink SPS activation/release command is triggered, the UE performs the following:
if the UE has available UL-SCH (Uplink Shared Channel) resources to transmit an acknowledgement of the Sidelink SPS activation/release command within the current TTI, then:
if only using MAC CE format one generates Sidelink SPS activation/release acknowledgement, UE uses MAC CE format one generates Sidelink SPS activation/release acknowledgement; specifically, the UE may instruct the multiplexing and combining process to generate a Sidelink SPS activation/release acknowledgement of MAC CE format one. By "multiplexing and combining process" is meant that the MAC CE is identified by the LCID of the MAC PDU subheader, and is byte aligned bit strings (i.e., 8bits in number) in length, with the bit strings being read in each row in left-to-right order and then row by row. The bit arrangement in each field in the MAC CE is: the first bit, which is also the most important bit at the same time, is on the far left, and the last bit, which is also the least important bit at the same time, is on the far right.
If only using MAC CE format two to generate Sidelink SPS activation/release confirmation, the UE uses MAC CE format two to generate Sidelink SPS activation/release confirmation;
if the Sidelink SPS activation/release acknowledgment can be generated using either MAC CE format one or MAC CE format two, then:
if the number of the carriers transmitted by the SPS service is less than a set first threshold, using the MAC CE format I to generate a Sidelink SPS activation/release confirmation; here, when the number of carriers is less than the set first threshold, it may be considered that fewer carriers are used to transmit SPS traffic, and in this case, the MAC CE format one is suitable for use;
if the activated SPS configuration is smaller than a set second threshold, using the MAC CE format II to generate a SidelinkSPS activation/release confirmation; here, when the activated SPS configuration is smaller than the set second threshold, it may be considered that less SPS configurations are activated to transmit SPS services, and in this case, the MAC CE format two is suitably used;
if the MAC entity has no available UL-SCH resource in the current TTI; alternatively, if the available UL-SCH resources do not meet the LCP (logical channel priority) limits of the LCHs (logical channels) that trigger the sildelink SPS activation/release acknowledgment, the MAC CE that generated the sildelink SPS activation/release acknowledgment is cancelled.
Corresponding to the above method, the present application also discloses a user equipment, the structure of which is shown in fig. 7, the user equipment is applied to V2X communication, and is used for SPS configuration activation/release confirmation of PC5 port, and the user equipment comprises: trigger the affirmation module and confirm the generation module, wherein:
the trigger confirmation module is used for judging the SL SPS configuration on each carrier when the user equipment receives the PDCCH scrambled by the SL SPS V-RNTI by high-level configuration, triggering SL SPS activation confirmation if the content of the PDCCH indicates SPS activation, and informing the confirmation generation module; if the content of the PDCCH indicates SPS release, triggering SL SPS release confirmation, and informing the confirmation generation module;
and the acknowledgement generating module is used for generating a SL SPS activation/acknowledgement or a SL SPS release acknowledgement comprising carrier information and SPS configuration information when the UE has available UL-SCH resources for transmitting the SL SPS activation/release acknowledgement in the current TTI according to the notification of the trigger acknowledgement module.
Preferably, the acknowledgement generating module is configured to generate a SL SPS activation/release acknowledgement including carrier information and SPS configuration information by using a MAC CE format one or a MAC CE format two; wherein:
MAC CE format one is: by field CiThe different values of (a) respectively indicate whether the current carrier i has SPS service transmission, and the range of i is from 0 to 7; using field SPSjThe different values of (a) respectively indicate the activation/deactivation state of an SPS configuration j on a carrier transmitted by the SPS service, and the range of the j is from 1 to 8;
MAC CE format two is: using field SPSjThe different values of (a) respectively indicate the activation/deactivation states of SPS configuration j, and the range of j is from 1 to 8; by field CiRespectively indicate whether the SPS configuration j is activated on the carrier i under the condition that the SPS j is activated.
Preferably, the confirmation generation module is configured to perform the following operations:
if the number of the carriers transmitted by the SPS service is less than a set first threshold, generating the SL SPS activation/release confirmation by using a first MAC CE format;
generating the SL SPS activation/release acknowledgement using MAC CE format two if the activated SPS configuration is less than a set second threshold.
Preferably, the confirmation generation module is configured to perform the following operations:
if the SL SPS activation/release acknowledgement can only be generated using MAC CE format one, then the SL SPS activation/release acknowledgement is generated using MAC CE format one;
if the SL SPS activation/release acknowledgement can only be generated using MAC CE format two, then the SL SPS activation/release acknowledgement is generated using MAC CE format two.
Preferably, the confirmation generation module is further configured to perform the following operations:
if a SL SPS activation/release acknowledgement is triggered, if no UL-SCH resources are available within the current TTI; alternatively, if the available UL-SCH resources do not meet the logical channel priority LCP restriction of the logical channel LCH that triggers the SL SPS activation/release acknowledgment, the generation of the SL SPS activation/release acknowledgment is cancelled.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims (10)

1. A method for confirming activation or release of semi-persistent scheduling (SPS) configuration, which is applied to a PC5 port of vehicle-to-outside V2X communication, and is characterized by comprising the following steps:
if the user equipment UE receives the physical downlink control channel PDCCH scrambled by the semi-persistent scheduling vehicle radio network temporary identifier SL SPS V-RNTI by the high-level configuration, for the SLPS configuration on each carrier:
triggering a SL SPS activation confirmation if the content of the PDCCH indicates SPS activation;
triggering a SL SPS release acknowledgement if the content of the PDCCH indicates SPS release;
if the SL SPS activation/release confirmation is triggered, generating the SL SPS activation/release confirmation or the SL SPS release confirmation comprising the carrier information and the SPS configuration information when the UE has available uplink shared channel UL-SCH resources for transmitting the SL SPS activation/release confirmation in the current transmission time interval TTI.
2. The method of claim 1, wherein generating a SL SPS activation/release acknowledgement comprising carrier information and SPS configuration information comprises:
generating a SL SPS activation/release confirmation comprising carrier information and SPS configuration information by adopting a media access control unit MAC CE format I or MAC CE format II; wherein:
MAC CE format one is: by field CiThe different values of (a) respectively indicate whether the current carrier i has SPS service transmission, and the range of i is from 0 to 7; using field SPSjThe different values of (a) respectively indicate the activation/deactivation state of an SPS configuration j on a carrier transmitted by the SPS service, and the range of the j is from 1 to 8;
MAC CE format two is: using field SPSjThe different values of (a) respectively indicate the activation/deactivation states of SPS configuration j, and the range of j is from 1 to 8; by field CiRespectively indicate activation at SPSjIn this case, whether the SPS configuration j is activated on carrier i.
3. The method of claim 2, wherein generating a SL SPS activation/release acknowledgement including carrier information and SPS configuration information using MAC CE format one or MAC CE format two comprises:
if the number of the carriers transmitted by the SPS service is less than a set first threshold, the UE generates the SL SPS activation/release confirmation by using a MACCE format;
if the activated SPS configuration is smaller than the set second threshold, the UE generates the SL SPS activation/release confirmation by using a MAC CE format two.
4. The method of claim 2, wherein generating a SL SPS activation/release acknowledgement including carrier information and SPS configuration information using MAC CE format one or MAC CE format two comprises:
if the SL SPS activation/release acknowledgement can only be generated by using the MAC CE format one, the UE generates the SL SPS activation/release acknowledgement by using the MAC CE format one;
if the SL SPS activation/release acknowledgment can only be generated using MAC CE format two, the UE generates the SL SPS activation/release acknowledgment using MAC CE format two.
5. The method of any one of claims 1 to 4, further comprising:
if a SL SPS activation/release acknowledgement is triggered, if no UL-SCH resources are available within the current TTI; alternatively, if the available UL-SCH resources do not meet the logical channel priority LCP restriction of the logical channel LCH that triggers the SL SPS activation/release acknowledgment, the generation of the SL SPS activation/release acknowledgment is cancelled.
6. A user equipment for use in V2X communication for SPS configuration activation/release confirmation via PC5 port, comprising: trigger the affirmation module and confirm the generation module, wherein:
the trigger confirmation module is used for judging SL SPS configuration on each carrier when the user equipment receives PDCCH scrambled by SL SPS V-RNTI by high-level configuration, triggering SLPS activation confirmation if the content of the PDCCH indicates SPS activation, and informing the confirmation generation module; if the content of the PDCCH indicates SPS release, triggering SLSLSPS release confirmation, and informing the confirmation generation module;
and the acknowledgement generating module is used for generating SLPS activation/acknowledgement or SL SPS release acknowledgement comprising carrier information and SPS configuration information when the user equipment has available UL-SCH resources for transmitting SL SPS activation/release acknowledgement in the current TTI according to the notification of the trigger acknowledgement module.
7. The user equipment of claim 6, wherein:
the confirmation generating module is used for generating SL SPS activation/release confirmation comprising carrier information and SPS configuration information by adopting a MAC CE format I or a MAC CE format II; wherein:
MAC CE format one is: by field CiThe different values of (a) respectively indicate whether the current carrier i has SPS service transmission, and the range of i is from 0 to 7; using field SPSjThe different values of (a) respectively indicate the activation/deactivation state of an SPS configuration j on a carrier transmitted by the SPS service, and the range of the j is from 1 to 8;
MAC CE format two is: using field SPSjThe different values of (a) respectively indicate the activation/deactivation states of SPS configuration j, and the range of j is from 1 to 8; by field CiRespectively indicate whether the SPS configuration j is activated on the carrier i under the condition that the SPS j is activated.
8. The UE of claim 7, wherein the acknowledgement generation module is configured to:
if the number of the carriers transmitted by the SPS service is less than a set first threshold, generating the SL SPS activation/release confirmation by using a first MAC CE format;
generating the SL SPS activation/release acknowledgement using MAC CE format two if the activated SPS configuration is less than a set second threshold.
9. The UE of claim 7, wherein the acknowledgement generation module is configured to:
if the SL SPS activation/release acknowledgment can only be generated using MAC CE format one, then the SLSPS activation/release acknowledgment is generated using MAC CE format one;
if the SL SPS activation/release acknowledgement can only be generated using MAC CE format two, then the SLSPS activation/release acknowledgement is generated using MAC CE format two.
10. The apparatus of any of claims 6 to 9, wherein the acknowledgement generation module is further configured to:
if a SL SPS activation/release acknowledgement is triggered, if no UL-SCH resources are available within the current TTI; alternatively, if the available UL-SCH resources do not meet the logical channel priority LCP restriction of the logical channel LCH that triggers the SL SPS activation/release acknowledgment, the generation of the SL SPS activation/release acknowledgment is cancelled.
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