CN117296421A - Apparatus, method and computer program - Google Patents

Abstract

The present disclosure relates to an apparatus including at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code being configured to work with the at least one processor causing the apparatus to at least: monitor (800) a resource pool of a plurality of sequentially ordered resource pools for receipt of a service; determine (802) that at least one condition associated with the resource pool is satisfied; and monitor (804) The subsequent resource pool in multiple sequentially ordered resource pools for receipt of a service.

Description

Devices, methods and computer programs

Technical field

The present disclosure relates to apparatus, methods, and computer programs for monitoring multiple sequentially ordered resource pools for receipt of services.

Background technique

A communication system may be viewed as a facility that enables communication sessions between two or more entities, such as communication devices, base stations and/or other nodes, by providing bearers between the various entities involved in the communication path.

The communication system may be a wireless communication system. Examples of wireless systems include Public Land Mobile Networks (PLMN) operating based on radio standards such as those provided by 3GPP, satellite-based communication systems and different wireless local area networks (eg Wireless Local Area Networks (WLAN)). Wireless systems are often divided into cells and are often referred to as cellular systems.

Communication systems and associated equipment typically operate according to a given standard or specification that sets out what the various entities associated with the system are allowed to do and how these should be implemented. Typically the communication protocol and/or parameters that should be used in order to connect are also defined. An example of a standard is the so-called 5G standard.

Contents of the invention

According to one aspect, an apparatus is provided, comprising means for: monitoring a resource pool in a plurality of sequentially ordered resource pools for receipt of a service; determining that at least one condition associated with the resource pool is satisfying; and monitoring subsequent resource pools in the plurality of sequentially ordered resource pools for receipt of the service.

The at least one condition may include: a load on the resource pool is higher than a first load threshold; a number of transmissions received via the resource pool is higher than a number of transmissions threshold within the time window; or an indication received via the resource pool indicating a need for the service. Sent for subsequent resource pool usage.

The first load threshold may be used for evaluation of the resource pool by the receiving device and may be different from the second load threshold configured for evaluation of the resource pool by the sending device.

The first load threshold may be determined based on the second load threshold.

The first load threshold may be further determined based on quality of service requirements.

Quality of service requirements may include at least one of the following: priority, packet error rate, or traffic periodicity.

The second load threshold and/or quality of service requirements may be received from the service network and/or preconfigured.

The second load threshold and/or quality of service requirement may be received from the serving network via public signaling and/or private signaling.

The second load threshold and/or quality of service requirements may be preconfigured by the operator and/or application.

The apparatus may include means for determining a plurality of sequentially ordered resource pools for receipt of the service and a plurality of sequentially ordered resource pools for transmission of the service before monitoring the resource pools, determining at least one condition, and monitoring subsequent resource pools. There is a one-to-one relationship between sequentially ordered resource pools.

The apparatus may include means for determining that the service is a specific service or belongs to a specific service group before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools.

The apparatus may include means for determining that the apparatus is located in a particular area or belongs to a particular apparatus group before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools.

Monitoring a subsequent resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include continuously or periodically monitoring subsequent resource pools of the plurality of sequentially ordered resource pools for receipt of the service.

The load on the resource pool can be measured by this device.

The load on the resource pool can be measured by and received by another device.

Multiple sequential resource pools can include three or more resource pools.

Monitoring the resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include monitoring the lowest resource pool and/or the next lowest resource pool of the plurality of sequentially ordered resource pools for receipt of the service.

Multiple sequentially ordered resource pools can be used for sidechain reception of services.

The apparatus may include means for determining that at least one condition associated with the resource pool is no longer satisfied and no longer monitoring subsequent resource pools in the plurality of sequentially ordered resource pools for receipt of the service.

According to one aspect, an apparatus is provided, including at least one processor and at least one memory, the at least one memory including computer code for one or more programs, the at least one memory and the computer code being configured to interact with the at least one Together with the processor, the apparatus at least: monitors a resource pool in a plurality of sequentially ordered resource pools for receipt of a service; determines that at least one condition associated with the resource pool is satisfied; and monitors a resource pool for receipt of the service. The subsequent resource pool in multiple sequentially ordered resource pools.

At least one condition may include: a load on the resource pool is higher than a first load threshold; a number of transmissions received via the resource pool is higher than a number of transmissions threshold within the time window; or an indication received via the resource pool indicating a transmission for service subsequent use of the resource pool.

The first load threshold may be used for evaluation of the resource pool by the receiving device and may be different from the second load threshold configured for evaluation of the resource pool by the sending device.

The first load threshold may be determined based on the second load threshold.

The first load threshold may be further determined based on quality of service requirements.

Quality of service requirements may include at least one of the following: priority, packet error rate, or traffic periodicity.

The second load threshold and/or quality of service requirements may be received from the service network and/or preconfigured.

The second load threshold and/or quality of service requirement may be received from the serving network via public signaling and/or private signaling.

The second load threshold and/or quality of service requirements may be preconfigured by the operator and/or application.

The at least one memory and computer code may be configured to, together with the at least one processor, cause the apparatus to at least: determine a plurality of buttons for receipt of a service before monitoring a resource pool, determining at least one condition, and monitoring a subsequent resource pool. There is a one-to-one relationship between a sequentially ordered resource pool and multiple sequentially ordered resource pools used for delivery of a service.

The at least one memory and computer code may be configured to, together with the at least one processor, cause the apparatus to at least: determine that a service is a particular service or belongs to a particular service group before monitoring a resource pool, determining at least one condition, and monitoring a subsequent resource pool. .

The at least one memory and computer code may be configured to, together with the at least one processor, cause the device to at least: determine that the device is located in a particular area or belongs to a particular device group before monitoring a resource pool, determining at least one condition, and monitoring a subsequent resource pool. .

Monitoring a subsequent resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include continuously or periodically monitoring subsequent resource pools of the plurality of sequentially ordered resource pools for receipt of the service.

The load on the resource pool can be measured by this device.

The load on the resource pool can be measured by and received by another device.

Multiple sequential resource pools can include three or more resource pools.

Monitoring the resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include monitoring the lowest resource pool and/or the next lowest resource pool of the plurality of sequentially ordered resource pools for receipt of the service.

Multiple sequentially ordered resource pools can be used for sidechain reception of services.

The at least one memory and computer code may be configured to, together with the at least one processor, cause the apparatus to at least: determine that at least one condition associated with the resource pool is no longer met; and no longer monitor a plurality of conditions for receipt of a service. The subsequent resource pool in the sequenced resource pool.

According to one aspect, an apparatus is provided including circuitry configured to: monitor a resource pool of a plurality of sequentially ordered resource pools for receipt of a service; determine that at least one condition associated with the resource pool is satisfied ; and monitoring subsequent resource pools in the plurality of sequentially ordered resource pools for receipt of the service.

At least one condition may include: a load on the resource pool is higher than a first load threshold; a number of transmissions received via the resource pool is higher than a number of transmissions threshold within the time window; or an indication received via the resource pool indicating a transmission for service subsequent use of the resource pool.

The first load threshold may be used for evaluation of the resource pool by the receiving device and may be different from the second load threshold configured for evaluation of the resource pool by the sending device.

The first load threshold may be determined based on the second load threshold.

The first load threshold may be further determined based on quality of service requirements.

Quality of service requirements may include at least one of the following: priority, packet error rate, or traffic periodicity.

The second load threshold and/or quality of service requirements may be received from the service network and/or preconfigured.

The second load threshold and/or quality of service requirement may be received from the serving network via public signaling and/or private signaling.

The second load threshold and/or quality of service requirements may be preconfigured by the operator and/or application.

The apparatus may include circuitry configured to determine a plurality of sequentially ordered resource pools for receipt of the service and a number of sequentially ordered resource pools for the service before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools. There is a one-to-one relationship between multiple sequentially ordered resource pools sent.

The apparatus may include circuitry configured to determine that the service is a particular service or belongs to a particular service group before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools.

The device may include circuitry configured to determine that the device is located in a particular region or belongs to a particular device group before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools.

Monitoring a subsequent resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include continuously or periodically monitoring subsequent resource pools of the plurality of sequentially ordered resource pools for receipt of the service.

The load on the resource pool can be measured by this device.

The load on the resource pool can be measured by and received by another device.

Multiple sequential resource pools can include three or more resource pools.

Monitoring the resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include monitoring the lowest resource pool and/or the next lowest resource pool of the plurality of sequentially ordered resource pools for receipt of the service.

Multiple sequentially ordered resource pools can be used for sidechain reception of services.

The apparatus may include circuitry configured to: determine that at least one condition associated with the resource pool is no longer satisfied; and no longer monitor subsequent ones of the plurality of sequentially ordered resource pools for receipt of the service. Resource pool.

According to one aspect, a method is provided, comprising: monitoring a resource pool in a plurality of sequentially ordered resource pools for receipt of a service; determining that at least one condition associated with the resource pool is satisfied; and monitoring for the service Receives subsequent resource pools in multiple sequentially ordered resource pools.

At least one condition may include: a load on the resource pool is higher than a first load threshold; a number of transmissions received via the resource pool is higher than a number of transmissions threshold within the time window; or an indication received via the resource pool indicating a transmission for service subsequent use of the resource pool.

The first load threshold may be used for evaluation of the resource pool by the receiving device and may be different from the second load threshold configured for evaluation of the resource pool by the sending device.

The first load threshold may be determined based on the second load threshold.

The first load threshold may be further determined based on quality of service requirements.

Quality of service requirements may include at least one of the following: priority, packet error rate, or traffic periodicity.

The second load threshold and/or quality of service requirements may be received from the service network and/or preconfigured.

The second load threshold and/or quality of service requirement may be received from the serving network via public signaling and/or private signaling.

The second load threshold and/or quality of service requirements may be preconfigured by the operator and/or application.

The method may include determining a plurality of sequentially ordered resource pools for receipt of the service and a plurality of sequentially ordered resources for transmission of the service before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools. There is a one-to-one relationship between pools.

The method may include determining that the service is a specific service or belongs to a specific service group before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools.

The method may include determining that the device is located in a specific area or belongs to a specific device group before monitoring the resource pool, determining at least one condition, and monitoring the subsequent resource pool.

Monitoring a subsequent resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include continuously or periodically monitoring subsequent resource pools of the plurality of sequentially ordered resource pools for receipt of the service.

The load on the resource pool can be measured by a device implementing this method.

The load on the resource pool may be measured by another device and received by the device implementing the method.

Multiple sequential resource pools can include three or more resource pools.

Monitoring the resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include monitoring the lowest resource pool and/or the next lowest resource pool of the plurality of sequentially ordered resource pools for receipt of the service.

Multiple sequentially ordered resource pools can be used for sidechain reception of services.

The method may include determining that at least one condition associated with the resource pool is no longer satisfied; and no longer monitoring subsequent resource pools of the plurality of sequentially ordered resource pools for receipt of the service.

According to one aspect, there is provided a computer program including computer executable code, the computer executable code when running on at least one processor, the computer executable code is configured to: monitor a plurality of sequential data for receipt of a service. pooling resources in the sequenced resource pool; determining that at least one condition associated with the resource pool is satisfied; and monitoring subsequent resource pools in the plurality of sequenced resource pools for receipt of services.

At least one condition may include: a load on the resource pool is higher than a first load threshold; a number of transmissions received via the resource pool is higher than a number of transmissions threshold within the time window; or an indication received via the resource pool indicating a transmission for service subsequent use of the resource pool.

The first load threshold may be used for evaluation of the resource pool by the receiving device and may be different from the second load threshold configured for evaluation of the resource pool by the sending device.

The first load threshold may be determined based on the second load threshold.

The first load threshold may be further determined based on quality of service requirements.

Quality of service requirements may include at least one of the following: priority, packet error rate, or traffic periodicity.

The second load threshold and/or quality of service requirements may be received from the service network and/or preconfigured.

The second load threshold and/or quality of service requirement may be received from the serving network via public signaling and/or private signaling.

The second load threshold and/or quality of service requirements may be preconfigured by the operator and/or application.

The computer program may include computer executable code that, when executed on at least one processor, is configured to: before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools, determine for There is a one-to-one relationship between multiple ordered resource pools for a service's reception and multiple ordered resource pools for a service's send.

The computer program may include computer executable code that, when executed on at least one processor, is configured to: before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools, determine that the service is A specific service or belonging to a specific service group.

The computer program may include computer executable code that, when executed on at least one processor, is configured to: before monitoring the resource pool, determining at least one condition, and monitoring subsequent resource pools, determine that the device is located A specific area or belonging to a specific device group.

Monitoring a subsequent resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include continuously or periodically monitoring subsequent resource pools of the plurality of sequentially ordered resource pools for receipt of the service.

The load on the resource pool can be measured by a device integrating at least one processor.

The load on the resource pool may be measured by another device and received by the device integrating at least one processor.

Multiple sequential resource pools can include three or more resource pools.

Monitoring the resource pool of the plurality of sequentially ordered resource pools for receipt of the service may include monitoring the lowest resource pool and/or the next lowest resource pool of the plurality of sequentially ordered resource pools for receipt of the service.

Multiple sequentially ordered resource pools can be used for sidechain reception of services.

The computer program may include computer executable code that, when executed on at least one processor, is configured to: determine that at least one condition associated with the resource pool is no longer met; and no longer monitor for use. The subsequent resource pool in multiple sequentially ordered resource pools for receipt of a service.

According to one aspect, an apparatus is provided, comprising means for: using a resource pool of a plurality of sequentially ordered resource pools for delivery of a service; via one or more The resource pool is used to send an indication to indicate the use of the subsequent resource pool for the delivery of the service; and the subsequent resource pool for the delivery of the service is used.

The indication may indicate the highest resource pool of a plurality of sequentially ordered resource pools used by the device for transmission of the service.

The one or more resource pools configured to send the indication may be part of multiple sequentially ordered resource pools.

The one or more resource pools configured for sending the indication may include: the lowest resource pool or the next lowest resource pool among the plurality of sequentially ordered resource pools used by the device for sending the service.

The resource pool or pools configured for sending the indication may not be part of multiple sequentially ordered resource pools.

According to one aspect, an apparatus is provided, including at least one processor and at least one memory, the at least one memory including computer code for one or more programs, the at least one memory and the computer code being configured to interact with the at least one Together with the processor, causing the apparatus to at least: use a resource pool of a plurality of sequentially ordered resource pools for delivery of the service; send the indication via one or more resource pools configured for sending the indication, the indication using to indicate the use of the subsequent resource pool for the delivery of the service; and the use of the subsequent resource pool for the delivery of the service.

The indication may indicate the highest resource pool among multiple sequentially ordered resource pools used by the device for transmission of the service.

The one or more resource pools configured to send the indication may be part of multiple sequentially ordered resource pools.

The one or more resource pools configured for sending the indication may include: among the plurality of sequentially ordered resource pools, the lowest resource pool or the next lowest resource pool used by the device for sending the service.

The resource pool or pools configured for sending the indication may not be part of multiple sequentially ordered resource pools.

According to one aspect, an apparatus is provided that includes circuitry configured to: use a resource pool of a plurality of sequentially ordered resource pools for transmission of a service; via one or more The resource pool is used to send an indication to indicate the use of the subsequent resource pool for the delivery of the service; and the subsequent resource pool for the delivery of the service is used.

The indication may indicate the highest resource pool of a plurality of sequentially ordered resource pools used by the device for transmission of the service.

The one or more resource pools configured to send the indication may be part of multiple sequentially ordered resource pools.

The one or more resource pools configured for sending the indication may include the lowest resource pool or the next lowest resource pool among the plurality of sequentially ordered resource pools used by the device for sending the service.

The resource pool or pools configured for sending the indication may not be part of multiple sequentially ordered resource pools.

According to one aspect, a method is provided, comprising: using a resource pool of a plurality of sequentially ordered resource pools for delivery of a service; sending an indication via one or more resource pools configured for sending the indication, The indication is to indicate the use of the subsequent resource pool for the delivery of the service; and the use of the subsequent resource pool for the delivery of the service.

The indication may indicate the highest resource pool among multiple sequentially ordered resource pools used by the device for transmission of the service.

The one or more resource pools configured to send the indication may be part of multiple sequentially ordered resource pools.

The one or more resource pools configured for sending the indication may include: among the plurality of sequentially ordered resource pools, the lowest resource pool or the next lowest resource pool used by the device for sending the service.

The resource pool or pools configured for sending the indication may not be part of multiple sequentially ordered resource pools.

According to one aspect, there is provided a computer program including computer executable code, the computer executable code when running on at least one processor, the computer executable code is configured to use a plurality of buttons for sending a service. a resource pool in a sequentially ordered resource pool; sending an indication via one or more resource pools configured to send an indication to indicate use of a subsequent resource pool for the sending of the service; and using for the service The subsequent resource pool sent.

The indication may indicate the highest resource pool among multiple sequentially ordered resource pools used by the device for transmission of the service.

The one or more resource pools configured to send the indication may be part of multiple sequentially ordered resource pools.

The one or more resource pools configured for sending the indication may include: among the plurality of sequentially ordered resource pools, the lowest resource pool or the next lowest resource pool used by the device for sending the service.

The resource pool or pools configured for sending the indication may not be part of multiple sequentially ordered resource pools.

According to one aspect, a computer-readable medium is provided, including program instructions stored thereon for performing at least one of the above-described methods.

According to one aspect, a non-transitory computer-readable medium is provided, including program instructions stored thereon for performing at least one of the above-described methods.

According to one aspect, a non-volatile tangible storage medium is provided, including program instructions stored thereon for performing at least one of the above methods.

Above, many different aspects have been described. It will be understood that further aspects may be provided by a combination of any two or more of the above aspects.

Various other aspects are also described in the following detailed description and appended claims.

abbreviation list

AF: Application function

AMF: access and mobility management functions

API: Application Protocol Interface

BS: base station

CU: centralized unit

DL: Downlink

DU: distributed unit

gNB:gNodeB

GSM: Global System for Mobile Communications

HSS: Home Subscriber Server

IoT: Internet of Things

LTE: Long Term Evolution

MAC: Media Access Control

MCO: Multi-Channel Operation

MS: mobile station

MTC: Machine Type Communication

NEF: Network Open Function

NF: network function

NR: New Radio

NRF: Network Function Repository Function

PDU: Packet Data Unit

PER: Packet Error Rate (Packet Error Rate)

PLMN: Public Land Mobile Network

RAM: random access memory

(R)AN: (radio) access network

ROM: read-only memory

RX:Receive

SIB: system information block

SL: side chain

SMF: session management function

TR: technical report

TS: technical specifications

TX: send

UE: User Equipment

UMTS: Universal Mobile Telecommunications System

3GPP: Third Generation Partnership Project

5G: fifth generation

5GC: 5G core network

5GS: 5G system

Description of drawings

Embodiments will now be described, by way of example only, with reference to the accompanying drawings, in which:

Figure 1 shows a schematic representation of a 5G system;

Figure 2 shows a schematic representation of the control device;

Figure 3 shows a schematic representation of the terminal;

Figure 4 shows examples of sequential filling schemes, load balancing schemes and elastic schemes;

Figure 5 shows another example of the sequential filling scheme, the load balancing scheme and the elastic scheme;

Figure 6 illustrates multiple sequentially ordered resource pools for sidechain reception and/or transmission of services;

7 shows a block diagram of a method for monitoring a plurality of sequentially ordered resource pools for sidelink reception of a service, the method being performed, for example, by a sidelink reception user device;

8 illustrates a block diagram of a method for monitoring a plurality of sequentially ordered resource pools for sidelink reception of a service, the method being performed, for example, by a sidelink reception user device;

9 illustrates a block diagram of a method for using multiple sequentially ordered resource pools for sidechain transmission of a service, the method being performed, for example, by a sidechain transmitting user device; and

Figure 10 shows a schematic representation of a non-volatile storage medium storing instructions that, when executed by a processor, allow the processor to perform one or more steps of the methods of Figures 8 and 9.

Detailed ways

In the following, certain embodiments are explained with reference to mobile communication devices capable of communicating via wireless cellular systems and mobile communication systems serving such mobile communication devices. Before explaining the exemplary embodiments in detail, certain general principles of wireless communication systems, their access systems and mobile communication devices are briefly explained with reference to Figures 1, 2 and 3 to help understand the technology behind the examples.

Figure 1 shows a schematic representation of a 5G system (5GS). 5GS may include a terminal, a (radio) access network ((R)AN), a 5G core network (5GC), one or more application functions (AF), and one or more data networks (DN).

5G(R)AN may include one or more gNodeB (gNB) distributed unit functions connected to one or more gNodeB (gNB) centralized unit functions.

5GC may include Access and Mobility Management Function (AMF), Session Management Function (SMF), Authentication Server Function (AUSF), User Data Management (UDM), User Plane Function (UPF), and/or Network Openness Function (NEF) ).

FIG. 2 shows an example of a control device 200 for controlling the functions of the (R)AN or 5GC as shown in FIG. 1 . The control device may include at least one random access memory (RAM) 211a, at least one read only memory (ROM) 211b, at least one processor 212, 213, and an input/output interface 214. At least one processor 212, 213 may be coupled to RAM 211a and ROM 211b. At least one processor 212, 213 may be configured to execute suitable software code 215. Software code 215 may, for example, allow one or more steps to be performed to perform one or more of the present aspects. Software code 215 may be stored in ROM 211b. The control device 200 may be interconnected with another control device 200 that controls another function of 5G(R)AN or 5GC. In some embodiments, each function of the (R)AN or 5GC includes a control device 200 . In alternative embodiments, two or more functions of the (R)AN or 5GC may share one control device.

FIG. 3 shows an example of a terminal 300, such as the terminal shown in FIG. 1 . Terminal 300 may be provided by any device capable of sending and receiving radio signals. Non-limiting examples include user equipment, a mobile station (MS) or mobile device (such as a mobile phone or otherwise known as a "smartphone"), a computer equipped with a wireless interface card or other wireless interface facility (e.g., a USB dongle), A personal data assistant (PDA) or tablet equipped with wireless communication capabilities, a machine type communication (MTC) device, a cellular Internet of Things (CIoT) device, or any combination of these devices, etc. Terminal 300 may provide data communications, for example for bearer communications. Communication can be one or more of the following: voice, email, text message, multimedia, data, machine data, etc.

The terminal 300 may receive signals over the air or radio interface 307 via appropriate means for receiving and may transmit signals via appropriate means for transmitting radio signals. In Figure 3, the transceiver device is schematically represented by block 306. The transceiver arrangement 306 may be provided, for example, by radio components and associated antenna arrangements. The antenna arrangement may be arranged inside or outside the mobile device.

The terminal 300 may be provided with at least one processor 301, at least one memory ROM 302a, at least one RAM 302b and possibly other components 303 for performing, with the aid of software and hardware, the tasks it is designed to perform, including controlling access to systems and Access to other communications devices and communications with access systems and other communications devices. At least one processor 301 is coupled to RAM 302b and ROM 302a. At least one processor 301 may be configured to execute appropriate software code 308. Software code 308 may, for example, enable execution of one or more of the current aspects. Software code 308 may be stored in ROM 302a.

The processor, storage devices and other related control devices may be provided on appropriate circuit boards and/or chipsets. This feature is indicated by reference numeral 304. The device may optionally have a user interface such as a keyboard 305, a touch-sensitive screen or touchpad, combinations thereof, and the like. Depending on the type of device, one or more of a display, speakers, and microphones may optionally be provided.

One or more aspects of the present disclosure relate to 3GPP Release 17 (Rel-17) and higher.

One or more aspects of this disclosure relate to agenda item: Resource allocation for power savings under the Rel-17 NR Sidechain (SL) Enhancement Work Item [RP-202846].

Release 16 (Rel-16) NR SL TX/RX UE can be configured with up to 8 side-link transmit resource pools (SL TX RP) and 16 side-link receive resource pools (SL RX RP). For example, SL RX RP and/or SL TX RP may be channels. A channel may include a pool of resources (eg, resource blocks and/or resource elements).

For SL RX UEs, continuously monitoring all SL RX RPs may consume a large amount of power. Therefore, reducing the need to monitor the SL RX RP may help reduce power consumption.

ETSI TR 103 439ITS multi-channel operation (MCO) research addresses different channel usage mechanisms of TX UEs. Channel usage mechanisms are divided into three categories: sequential-filling, load balancing, and resiliency. These mechanisms are shown in Figure 4 taken from ETSI TR 103 439. It should be understood that each vertical bar may represent a channel.

Considering that channel resources can be used for different applications and/or services, the above-mentioned MCO mechanism taken from ETSI TR 103439 is shown in Figure 5. It should be understood that each shaded area may represent a set of resource elements allocated to an application and/or service.

Sequential padding uses a mechanism to organize channels sequentially, and subsequent channels are not used until the channel is underloaded. The TX UE can determine whether to use the channel for the TX of the service based on whether the channel load is below the load threshold. Load thresholds are configurable by the service.

Likewise, the RX UE can determine whether the RX for the service monitors the channel based on whether the channel load is below the load threshold. This may allow RX UEs to avoid unnecessary monitoring of TX for services on channels that are not used by TX UEs.

However, since the TX UE and RX UE may be located in different locations, the TX UE and RX UE may see different channel loads for the same channel. Therefore, misalignment may occur between TX UE and RX UE. This misalignment may result in data loss at the RX UE. It may be necessary to reduce or avoid this misalignment while enabling a sequential padding usage mechanism at the RX UE to save power.

It is worth noting that RX UE and power saving aspects are not considered in ETSI TR 103 439. In this disclosure, channels in ETSI TR 103 439 RP can be mapped to RP. In this disclosure, the channel load in ETSI TR 103 439RP can be mapped to the channel busy rate (CBR).

One or more aspects of the present disclosure are intended to reduce the monitoring of the SL RX RP for the serving SL RX by the SL RX UE when the sequential padding usage mechanism is used by the SL TX UE through the SL TX RP for the serving TX. One or more aspects of the present disclosure are intended to save power at the SL RX UE while minimizing data loss at the SL RX UE.

Figure 6 shows multiple sequentially ordered resource pools for SL RX and/or SL TX for services.

A SL Tx UE may be configured with n SL TX RPs {RP1,...,RPn} and corresponding CBR thresholds {CBR1,...,CBRn} for sequential padding using the mechanism. This configuration may be provided to the SL TX UE via broadcast system information blocks (SIBs), dedicated signaling, or preconfiguration. Preconfiguration may include operator-provided preconfiguration or application-provided preconfiguration. According to the sequential padding usage mechanism, if the CBR in RPi is greater than or equal to CBRi, and the CBR in RP(i+1) is lower than CBR(i+1)(1<=i<n), the SL TX UE can SL TX of execution service in (i+1). Note that the CBRn of the last RPn may not be required or may be set to 100%.

In order to save power consumption while minimizing data loss at the SL RX UE, the following content can be proposed to implement the sequential filling monitoring mechanism through the SL RX UE.

It should be understood that in this disclosure, the sequential filling monitoring mechanism refers to the RX side, and the sequential filling usage mechanism refers to the TX side.

When the SL RX UE detects n SL TX RPs and n SL RX RPs (i.e., each RP in {RP1,...,RPn} is both a SL TX RP and an SL RX RP) and/or when the SL TX When the UE implements the sequential filling usage mechanism for the TX of the service, the SLRX UE may determine to activate the sequential filling monitoring mechanism. This is expected in areas of service provided by one or more coordinated Public Land Mobile Networks (PLMN).

Alternatively, when the SL RX UE does not detect a one-to-one mapping relationship between n SL TX RPs and n SL RX RPs (i.e., at least one RP in {RP1,...RPn} is not an SL TX RP or SL RX RP) and/or when the SL TX UE does not implement the sequential filling usage mechanism for the served TX, the SL RX UE may determine to deactivate the sequential filling monitoring mechanism. It should be understood that when the sequential filling monitoring mechanism is disabled, n SL RX RPs may all be monitored.

The SL TX UE may be configured with CBR thresholds {CBR1, ..., CBRn} for using n SL TX RPs {RP1, ...., RPn}.

The SL RX UE may be configured with CBR thresholds {CBR1', ..., CBRn'} for monitoring n SL RX RPs {RP1, ...., RPn}.

Based on the CBR thresholds {CBR1,...,CBRn} and/or QoS requirements, the SL RX UE may derive the CBR thresholds {CBR1',...,CBRn'}. QoS requirements may include required priority, required packet error rate (PER), and/or traffic periodicity. To minimize packet loss at the SL RX UE, the CBR thresholds {CBR1',...,CBRn'} may be less than or equal to the CBR thresholds {CBR1,...,CBRn}.

In an example option, the SL RX UE may be configured with CBR threshold offset {cbr1,...,cbrn} based on CBR threshold {CBR1,...,CBRn} and CBR threshold offset {cbr1,... , cbrn} to obtain the CBR threshold {CBR1',...CBRn'} (for example, CBRi'=(CBRi-cbri)). The CBR threshold offset {cbr1,...,cbrn} may be based on QoS requirements.

First, SL RX UE can monitor RP1 and RP2. The SLRX UE may monitor RP3 in addition to RP1 and RP2 only if at least one of the following conditions is met:

(i) The CBR in RP2 is greater than or equal to CBR2'.

(ii) The number of SL RXs of the service received by the SL RX UE in RP2 during the last monitoring time window exceeds the SL TX number threshold N2. Time windows can be preconfigured.

The SL TX number threshold N2 can be pre-configured.

(iii) The SL RX UE receives one or more indications in RP1 or RP2 from one or more SL TX UEs instructing the one or more SL TX UEs to use RP3 for the serving SL TX. The one or more indications may be received by the SL RXUE in RP1 and/or RP2. This means that the SL TX UE may be configured to send an indication in RP1 and/or RP2 even if the CBR measured by the SL TX UE in RP1 and RP2 exceeds the CBR thresholds CBR1 and CBR2. Note that in addition to or instead of RP1 and RP2, SL TX UE and SL RX UE may also be configured with one or more special or dedicated RP(s) for data and/or control in special cases SL TX and RX for information (including such indications).

More generally, the SL RX UE may monitor RP(i+1)(i>=2) in addition to RP1,...,RPi only if at least one of the following conditions is met:

(i) CBR in RP2 is greater than or equal to CBR2', CBR in RP3 is greater than or equal to CBR3',..., and CBR in RPi is greater than or equal to CBRi'.

(ii) In the last monitoring time window, the number of SL TXs of the service received by the SL RX UE in RP2 exceeds the SL TX number threshold N2. In the last monitoring time window, the number of SL TXs of the service received by the SL RX UE in RP3 The SL TX quantity threshold N3 is exceeded, ...., and within the last monitoring time window, the SL TX quantity of the service received by the SL RXUE in RPi exceeds the SL TX quantity threshold Ni.

(iii) The SL RX UE receives one or more indications from one or more SL TX UEs in RP1 or RP2 indicating that the one or more SL TX UEs use RP(i+1) for the serving SL TX. This means that the SL TX UE may be configured to send an indication in RP1 and/or RP2 even if the CBR measured by the SL TX UE in RP1 and RP2 exceeds the CBR thresholds CBR1 and CBR2. Note that in addition to or instead of RP1 and RP2, SL TX UE and SL RX UE may also be configured with one or more special or dedicated RP(s) for data and/or control information in special cases ( SL TX and RX including such indication). Additionally, the SL TX UE may be configured to send the indication if i is greater than the minimum index. The minimum index can be set to

Numbers in {2,...,(n-1)}.

It is understood that conditions (i), (ii) and (iii) may be used individually or in combination. The order of combination can be different. For example, condition (i) can be evaluated before condition (ii). In another example, condition (ii) may be evaluated before condition (i).

While monitoring {RP1,...,RPi}, the SL RX UE may detect that conditions (i), (ii) and/or (iii) associated with RPk(2<k<i) are no longer valid. The SL RX UE may then no longer monitor {RPk,...,RPi}.

Figure 7 shows a block diagram of a method for monitoring multiple sequentially ordered RPs for a serving SL RX, the method being performed, for example, by a SL RX UE.

In step 1, the SL RX UE may activate the sequential filling monitoring mechanism on {RP1,...,RPn}.

In step 2, the SL RX UE may derive the CBR thresholds {CBR1', ..., CBRn'} based on the CBR thresholds {CBR1, ..., CBRn}.

In step 3, the SL RX UE can monitor {RP1,...,RPi}(i<n). You can set the initial value of i to 2.

In step 4, the SL RX UE may determine whether at least one of conditions (i), (ii) or (iii) is satisfied. If none of conditions (i), (ii) or (iii) are met, the method may return to step 3. If at least one of conditions (i), (ii) or (iii) is met, the method may proceed to step 5.

In step 5, the SL RX UE may monitor {RP1,...,RPi,RP(i+1)}. SL RX UE can set the value of i to i+1. The method can return to step 3.

The sequential filling monitoring mechanism can be configured for a specific service, a specific service group or a specific UE group.

The configuration of the sequential filling monitoring mechanism may be provided to the SL RX UE by the serving network. As far as the SL TX UE is concerned, the configuration for the sequential filling monitoring mechanism may be provided to the SL RX UE via public signaling or dedicated signaling or pre-configuration. Preconfiguration may include operator-provided preconfiguration or application-provided preconfiguration. Configuration for the sequential filling monitoring mechanism may include CBR thresholds {CBR1,...,CBRn}, CBR thresholds {CBR1',...,CBRn'} and/or CBR threshold offsets {cbr1,...,cbrn} and/or thresholds {N1,...,Nn}. Note that the CBRn threshold, CBRn' threshold, cbrn threshold offset and/or Nn for the last RPn may not be required or may be set to 100%, 0% or no limit respectively.

When the SL RX UE monitors RP(i+1) due to condition (ii) being satisfied but condition (i) not being satisfied (i.e., the number of SL TXs of the service received by the SL RX UE in RPi during the last monitoring time window exceeds SL TX quantity threshold Ni, but the CBR in RPi is less than CBRi'), the SL RX UE can completely RP(i+1) is monitored (continuously) or partially (cyclically).

Complete (continuous) monitoring means uninterrupted monitoring. Partial (periodic) monitoring means monitoring with interruptions, for example, monitoring in a duty cycle (e.g. monitoring for 20ms every 80ms). The duty cycle may be adapted based on whether and to what extent a served SL TX is received (ie, the number of served SL TX received by a SL RX UE).

In case Ni equals 1, the monitoring time window can be ignored, which means that the SL RX UE can start monitoring RP(i+1) as soon as it receives the served SL TX in RPi. The SL RX UE may then determine which monitoring option of RP(i+1) to use (ie, full (continuous) monitoring or partial (periodic) monitoring). For example, the SL RX UE may employ partial (periodic) monitoring if the CBR in RPi is below the threshold (much lower than CBRi') and/or the required PER is above the threshold.

The CBR in RP(i+1) seen by the Rx UE may be based on the CBR measurements of the SL RX UE in RP(i+1) and/or the CBR measurements of other UEs near the SL RX UE in RP(i+1) . CBR measurements of other UEs in the vicinity of the SL RX UE may be received by the SL RX UE in SL messages.

The CBR measurement of the SL RX UE in RP(i+1) may be reduced based on whether the SL RX UE uses full (continuous) monitoring or partial (periodic) monitoring in RP(i+1). For example, the SL RX UE may use partial monitoring in RP(i+1). CBR measurements for SL RXUEs can be skipped every N slots (e.g., every 2 slots), or a reduced averaging window can be used (e.g., 50 slots instead of the regular 100 slots). The SL RX UE's CBR measurements in RP(i+1) can then be reduced.

The CBR measurement of the SL RX UE in RP(i+1) can be reduced based on the CBR measurement in RPi. For example, partial monitoring may be used if the CBR measurement in RPi is below a threshold below CBRi'. Otherwise, full monitoring can be used. It should be noted that for partial monitoring at different levels or resolutions, more than one threshold under CBRi' can be configured for the SL RX UE.

The indication received by the SL RX UE from the SL TX UE in RP1 or RP2 to indicate that the SL TX UE uses RP(i+1) for the serving SL TX may indicate in {RP1,...,RPi,RPn} , SL TX The index of the highest RP used by the SL TX for the serving SL TX.

The sequential filling monitoring mechanism may be used by SL RX UEs for specific UE groups. Specific members of the UE group may agree in advance to use a set of RPs or sub-RPs within the UE group for SL TX/RX. This can be based on distributed coordination or centralized coordination. SL TX UE may use SL multicast in RP1 or RP2 within the UE group to indicate the use of RP(i+1).

Figure 8 shows a block diagram of a method for monitoring multiple sequentially ordered resource pools to receive services, the method being performed, for example, by a SL RX UE.

In step 800, the SL RX UE may monitor an RP of a plurality of sequentially ordered RPs for a serving RX.

In step 802, the SL RX UE may determine that at least one condition associated with the RP is satisfied.

In step 804, the SL RX UE may monitor subsequent RPs in the plurality of sequentially ordered RPs for the serving RX.

At least one condition may include: the load on the RP is above a first load threshold; the number of TXs received via the RP is above the TX number threshold within the time window; or an indication received via the RP to indicate subsequent transmission for service Use of RP.

The first load threshold may be used for the evaluation of the RP by the SL RX UE, and may be different from the second load threshold configured for the evaluation of the RP by the SL TX UE.

The first load threshold may be determined based on the second load threshold.

The first load threshold may be further determined based on QoS requirements.

QoS requirements may include at least one of the following: priority, packet error rate, or traffic periodicity.

The second load threshold and/or QoS requirements may be received from the service network and/or may be preconfigured.

The second load threshold and/or QoS requirements may be received from the serving network via public signaling and/or dedicated signaling.

The second load threshold and/or QoS requirements may be preconfigured by the operator and/or application.

Before step 800, step 802, and step 804, the SL RX UE may determine that there is a one-to-one relationship between the plurality of sequentially ordered RPs for the serving RX and the plurality of sequentially ordered RPs for the serving TX. relation.

Before step 800, step 802 and step 804, the SL RX UE may determine that the service is a specific service or belongs to a specific service group.

Before step 800, step 802, and step 804, the SL RX UE may determine that the SL RX UE is located in a specific area or belongs to a specific UE group.

Monitoring subsequent RPs in the plurality of sequentially ordered RPs for the RX for service may include continuously or periodically monitoring subsequent RPs among the plurality of sequentially ordered RPs for the RX for service.

The load on the RP can be measured by the SL RX UE.

The load on the RP can be measured by another UE and received by the SL RX UE.

Multiple sequentially ordered RPs may include three or more RPs.

Monitoring the RP of the plurality of sequentially ordered RPs for the RX for service may include monitoring the lowest RP and/or the next lowest RP of the plurality of sequentially ordered RPs for the RX for service.

Multiple sequentially ordered RPs may be used for a serving SL RX and/or a serving SL TX.

The SL RX UE may determine that at least one condition associated with the resource pool is no longer satisfied. The SL RX UE may no longer monitor subsequent RPs in the multiple sequentially ordered RPs for the serving RX.

Figure 9 shows a block diagram of a method of using multiple sequentially ordered resource pools for transmission of services, such as being performed by a SL TX UE.

In step 900, the SL TX UE may use an RP of a plurality of sequentially ordered RPs for the serving TX.

In step 902, the SL TX UE may send an indication via one or more RPs configured to send an indication to indicate the use of a subsequent RP for the serving TX.

In step 904, the SL TX UE may use the subsequent RP for the serving TX.

The indication may indicate the highest RP among multiple sequentially ordered RPs for the TX being served by the SL TX UE.

The one or more RPs configured to send indications may be part of multiple sequentially ordered RPs.

The one or more RPs configured to send the indication may include the lowest or next lowest RP among the plurality of sequentially ordered RPs used by the TX for service by the SL TXUE.

The one or more RPs configured to send the indication may not be part of multiple sequentially ordered RPs.

10 illustrates non-volatile storage media 1000a (eg, computer disk (CD) or digital versatile disk (DVD)) and 1000b (eg, universal serial bus (USB) memory stick) storing instructions and/or parameters 1002 ) represents a schematic representation of instructions and/or parameters 1002 that, when executed by a processor, allow the processor to perform one or more steps of the methods of FIGS. 8 and 9 .

Note that although example embodiments are described above, numerous changes and modifications can be made to the disclosed solution without departing from the scope of the invention.

It should be understood that although the above concepts have been discussed in the context of 5GS, one or more of these concepts may be applied to other cellular systems.

Accordingly, embodiments may vary within the scope of the appended claims. Generally, some embodiments may be implemented in hardware or special purpose circuitry, software, logic, or any combination thereof. For example, although embodiments are not so limited, some aspects may be implemented in hardware and other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor, or other computing device. Although various embodiments may be shown and described as block diagrams, flowcharts, or using some other graphical representation, it should be understood that the blocks, devices, systems, techniques, or methods described herein may be implemented in, as non-limiting examples, hardware, Implemented in software, firmware, special purpose circuits or logic, general purpose hardware or controllers or other computing devices, or some combination thereof.

Embodiments may be implemented by computer software stored in a memory and executable by at least one data processor of the associated entity, or by hardware, or by a combination of software and hardware. Furthermore, in this regard, it should be noted that any program (e.g., the programs in Figures 8 and 9) may represent program steps, or interconnected logic circuits, blocks, and functions, or a combination of program steps and logic circuits, blocks, and functions. combination. Software may be stored on physical media such as memory chips or memory blocks implemented within a processor, magnetic media such as hard or floppy disks, and optical media such as DVD and its data variant CD.

The memory may be of any type appropriate to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor-based storage devices, magnetic storage devices and systems, optical storage devices and systems, fixed storage, and removable storage. The data processor may be of any type appropriate to the local technology environment and may include, by way of non-limiting example, a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a gate level One or more of the circuits and processors based on a multi-core processor architecture.

Alternatively or additionally, some embodiments may be implemented using circuitry. The circuitry may be configured to perform one or more of the aforementioned functions and/or method steps. Circuitry may be provided in base stations and/or communications equipment.

As used in this application, the term "circuitry" may refer to one, more, or all of the following:

(a) Pure hardware circuit implementation (such as an implementation in analog and/or digital circuits only), and

(b) A combination of hardware circuitry and software, such as:

(i) A combination of analog and/or digital hardware circuit(s) and software/firmware, and

(ii) Any portion of a hardware processor(s) (including digital signal processor(s)) having software, software and memory(s) that work together to cause a device (such as a communications device or base station) to perform Various of the foregoing functions; and

(c) Hardware circuit(s) and/or processor(s), such as microprocessor(s) or part of a microprocessor(s), which requires software (e.g., firmware) to operate, but When software is not required for operation, the software may not be present.

The definition of circuitry applies to all uses of this term in this application, including in any claims. As another example, as used in this application, the term circuitry also encompasses only a hardware circuit or processor (or processors) or a portion of a hardware circuit or processor and its (or their) accompanying software. and/or firmware implementation. The term circuitry also covers integrated devices, for example.

The foregoing description has provided a complete and informative description of some embodiments by way of illustrative and non-limiting examples. However, various modifications and adaptations may become apparent to those skilled in the relevant art in view of the foregoing description when read in conjunction with the accompanying drawings and appended claims. However, all such and similar modifications of the teachings will remain within the scope defined by the appended claims.

Claims (27)

1. An apparatus comprising at least one processor and at least one memory, the at least one memory including computer code for one or more programs, the at least one memory and the computer code being configured to interact with the at least one Together with a processor, the device enables at least: monitoring a resource pool of a plurality of sequentially ordered resource pools for receipt of a service; determining that at least one condition associated with the resource pool is satisfied; and Subsequent resource pools of the plurality of sequentially ordered resource pools are monitored for receipt of the service. 2. The device of claim 1, wherein the at least one condition includes: The load on the resource pool is higher than the first load threshold; The number of transmissions received via the resource pool within the time window is higher than the transmission number threshold; or The indication received via the resource pool is to indicate the use of a subsequent resource pool for transmission of the service. 3. The device of claim 2, wherein the first load threshold is used for evaluation of the resource pool by a receiving device and is different from a second load threshold configured for evaluation of the resource pool by a sending device. 4. The apparatus of claim 3, wherein the first load threshold is determined based on the second load threshold. 5. The apparatus of claim 4, wherein the first load threshold is further determined based on quality of service requirements. 6. The apparatus of claim 5, wherein the quality of service requirements include at least one of: priority, packet error rate, or traffic periodicity. 7. The apparatus according to any one of claims 3 to 6, wherein the second load threshold and/or the quality of service requirement are received from a service network and/or preconfigured. 8. The apparatus of claim 7, wherein the second load threshold and/or the quality of service requirement are received from the serving network via public signaling and/or dedicated signaling. 9. The apparatus of claim 7, wherein the second load threshold and/or the quality of service requirement are preconfigured by an operator and/or application. 10. The apparatus of any one of claims 1 to 9, wherein the at least one memory and the computer code are configured, together with the at least one processor, to cause the apparatus to at least: Determining the plurality of sequentially ordered resource pools for receipt of the service and the transmission of the service before monitoring the resource pool, determining the at least one condition, and monitoring the subsequent resource pool. There is a one-to-one relationship between multiple sequentially ordered resource pools. 11. The apparatus of any one of claims 1 to 10, wherein the at least one memory and the computer code are configured, together with the at least one processor, to cause the apparatus to at least: Before monitoring the resource pool, determining the at least one condition and monitoring the subsequent resource pool, it is determined that the service is a specific service or belongs to a specific service group. 12. The apparatus of any one of claims 1 to 11, wherein the at least one memory and the computer code are configured, together with the at least one processor, to cause the apparatus to at least: Before monitoring the resource pool, determining the at least one condition and monitoring the subsequent resource pool, it is determined that the device is located in a specific area or belongs to a specific device group. 13. The apparatus of any one of claims 1 to 12, wherein monitoring the subsequent one of the plurality of sequentially ordered resource pools for receipt of the service includes: continuously or periodically The subsequent resource pools of the plurality of sequentially ordered resource pools are monitored for receipt of the service. 14. The apparatus of any one of claims 1 to 13, wherein the load on the resource pool is measured by the apparatus. 15. The device of any one of claims 1 to 13, wherein the load on the resource pool is measured by another device and received by the device. 16. The apparatus of any one of claims 1 to 15, wherein the plurality of sequentially ordered resource pools includes three or more resource pools. 17. The apparatus of claim 16, wherein monitoring a resource pool of a plurality of sequentially ordered resource pools for receipt of a service includes monitoring the plurality of sequentially ordered resource pools for receipt of the service. The lowest resource pool and/or the second-lowest resource pool among resource pools. 18. The apparatus of any one of claims 1 to 17, wherein the plurality of sequentially ordered resource pools are used for sidechain reception of the service. 19. The apparatus of any one of claims 1 to 18, wherein the at least one memory and the computer code are configured, together with the at least one processor, to cause the apparatus to at least: determining that the at least one condition associated with the resource pool is no longer satisfied; and The subsequent resource pools of the plurality of sequentially ordered resource pools are no longer monitored for receipt of the service. 20. An apparatus comprising at least one processor and at least one memory, the at least one memory including computer code for one or more programs, the at least one memory and the computer code being configured to interact with the at least one Together with a processor, the device enables at least: using a resource pool of multiple sequentially ordered resource pools for delivery of the service; sending the indication via one or more resource pools configured for sending indications to indicate use of subsequent resource pools for transmission of the service; and Use the subsequent resource pool for delivery of the service. 21. The apparatus of claim 20, wherein the indication is to indicate a highest resource pool of the plurality of sequentially ordered resource pools used by the apparatus for transmission of the service. 22. An apparatus according to claim 20 or claim 21, wherein the one or more resource pools configured to send the indication are part of the plurality of sequentially ordered resource pools. 23. The apparatus of claim 22, wherein the one or more resource pools configured to send the indication comprise: the plurality of sequentially ordered resource pools used by the apparatus for all The lowest resource pool or sub-lowest resource pool for delivery of the above services. 24. An apparatus according to claim 20 or claim 21, wherein the one or more resource pools configured to send the indication are not part of the plurality of sequentially ordered resource pools. 25. A method comprising: monitoring a resource pool of a plurality of sequentially ordered resource pools for receipt of a service; determining that at least one condition associated with the resource pool is satisfied; and Subsequent resource pools of the plurality of sequentially ordered resource pools are monitored for receipt of the service. 26. A method comprising: using a resource pool of multiple sequentially ordered resource pools for delivery of the service; sending the indication via one or more resource pools configured to send indications for use of subsequent resource pools for transmission of the service; and Use the subsequent resource pool for delivery of the service. 27. A computer program comprising computer-executable instructions which, when run on one or more processors, perform the steps of the method of claim 25 or claim 26.