OA19336A - Systems and methods for configuring measurement gaps and sounding reference signal switching. - Google Patents

Abstract

According to certain embodiments, a method implemented in a wireless device (110A-C) for configuring measurement gaps and sounding reference signal (SRS) switching includes obtaining a first configuration for transmitting at least one first radio signal subject to SRS switching. A second configuration indicating a measurement gap for receiving at least one second radio signal is obtained. The first configuration is adapted for transmitting the at least one first radio signal subject to SRS switching while applying the second configuration. The at least one first radio signal subject to SRS switching is transmitted in accordance with the adapted first configuration while applying the second configuration

Description

Disclosed are Systems and methods for configuring measurement gaps and sounding reference signal switching. Certain embodiments may ensure the performance of inter-frequency and inter-Radio Access Technology (inter-RAT) measurements when sounding resource signal (SRS) switching is configured. Additionally or alternatively, certain embodiments ensure that the performance of SRS switching when measurement gaps are used. Particular embodiments are described in FIGURES 1-14 of the drawings, like numerals being used for like and corresponding parts of the various drawings.

The term radio access technology, or RAT, may refer to any RAT such as, for example, UTRA, E-UTRA, narrow band internet of things (NB-IoT), WiFi, Bluetooth, next génération RAT (NR), 4G, 5G, or other suitable technology. Any of the first and the second nodes may be capable of supporting a single or multiple RATs.

The term measurement gaps used herein may include, for example, network-configured measurement gaps and/or UE-confïgured measurement gaps or autonomous gaps. Measurement gaps may be common for (e.g., shared by) multiple carrier frequencies and/or RATs or may be spécifie to one or a group of them. Some non-limiting examples of measurement gaps are as described in the background section.

The term time resource used herein may correspond to any type of physical resource or radio resource expressed in terms of length of time. Examples of time resources are: Symbol, time slot, subframe, radio frame, TTI, interleaving time, etc.

The radio signais used herein may include any radio signal, physical channel or logical channel, e.g., reference signais, synchronization signais, signais used for positioning measurements, control channel, data channel, multicast or broadeast channel, channel carrying spécifie type of information e.g. system information, etc. The signals/channels may be, e.g., UE-specific or TP-specific or cell-specific or area-specific. The signals/channels may be transmitted in a unicast, multicast or broadeast manner.

The term radio measurement used herein may refer to any measurement performed on radio signais. Radio measurements can be absolute or relative. Radio measurements can be e.g. intra-frequency, inter-frequency, CA, etc. Radio measurements can be unidirectional (e.g., DL or UL) or bidirectional (e.g., RTT, Rx-Tx, etc.). Some examples of radio measurements: timing measurements (e.g., TOA, timing advance, RTT, RSTD, SSTD, Rx-Tx, propagation delay, etc.), angle measurements (e.g., angle of arrivai), power-based measurements (e.g., received signal power, RSRP, received signal quality, RSRQ, SINR, SNR, CSI, CQI, PMI, interférence power, total interférence plus noise, RSSI, noise power, etc.), cell détection or identification, beam détection or beam identification, system information reading, RLM, etc.

The term reference signal (RS) used herein may refer to any type of reference signal or more generally physical radio signais transmitted by the UE in the UL to enable the network node to détermine the UL signal quality e.g. UL SNR, SINR, etc. Examples of such reference signais are sounding reference signais (SRS) or other SRS-type signais, in particular 3GPP LTE SRS, as just one example. Other ex amples of reference signais include DMRS, UE spécifie reference or pilot signais etc. The embodiments are applicable to any type of RS i.e.

switching of carrier transmitting any type of RS.

In some embodiments, SRS switching and SRS carrier based switching may be used interchangeably to describe transmitting SRS on different carriers. SRS switching may be based on a time and/or frequency domain pattern. SRS switching may further involve SRS transmission types described in Section 2.1.1 or other SRS transmission types. More example scénarios are described below.

FIGURE 4 is a block diagram illustrating an embodiment of a network 100 for configuring measurement gaps and sounding reference signal switching, in accordance with certain embodiments. Network 100 includes one or more radio nodes that may communicate via network 100. Radio nodes may include one or more wireless devices 110A-C, which may be interchangeably referred to as wireless devices 110 or UEs 110, and network nodes 115A-C, which may be interchangeably referred to as network nodes 115 or eNodeBs 115, radio network controller 120, and a core network node 130. A wireless device 110 may communicate with network nodes 115 over a wireless interface. For example, wireless device 110A may transmit wireless signais to one or more of network nodes 115, and/or receive wireless signais from one or more of network nodes 115. The wireless signais may contain voice traffic, data traffic, control signais, and/or any other suitable information. In some embodiments, an area of wireless signal coverage associated with a network node 115 may be referred to as a cell. In some embodiments, wireless devices 110 may hâve D2D capability. Thus, wireless devices 110 may be able to receive signais from and/or transmit signais directly to another wireless device 110. For example, wireless device 110A may be able to receive signais from and/or transmit signais to wireless device 110B.

In certain embodiments, network nodes 115 may interface with a radio network controller 120. Radio network controller 120 may control network nodes 115 and may provide certain radio resource management functions, mobility management functions, and/or other suitable functions. In certain embodiments, radio network controller 120 may interface with core network node 130 via an interconnecting network 125. The interconnecting network 125 may refer to any interconnecting system capable of transmitting audio, video, signais, data, messages, or any combination of the preceding. The interconnecting network may include ail or a portion of a public switched téléphoné network (PSTN), a public or private data network, a local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), a local, régional, or global communication or computer network such as the Internet, a wireline or wireless network, an enterprise intranet, or any other suitable communication link, including combinations thereof.

Core network node 130 may manage the establishment of communication sessions and provide various other functionality for wireless communication device 110. Wireless communication device 110 ex changes certain signais with core network node 130 using the nonaccess stratum layer. In non-access stratum (NAS) signaling, signais between wireless communication device 110 and core network node 130 pass transparently through network nodes 120.

As described above, example embodiments of network 100 may include one or more wireless devices 110, and one or more different types of network nodes capable of communicating (directly or indirectly) with wireless devices 110. Wireless device 110 may refer to any type of wireless device communicating with a node and/or with another wireless device in a cellular or mobile communication system. Examples of wireless device 110 include a mobile phone, a smart phone, a PDA (Personal Digital Assistant), a portable computer (e.g., laptop, tablet), a sensor, a modem, a machine-type-communication (MTC) device / machine-to-machine (M2M) device, laptop embedded equipment (LEE), laptop mounted equipment (LME), USB dongles, a D2D capable device, or another device that can provide wireless communication. A wireless device 110 may also be referred to as UE, a station (STA), a device, or a terminal in some embodiments. Also, in some embodiments, generic terminology, “radio network node” (or simply “network node”) is used. It can be any kind of network node, which may include a Node B, base station (BS), multi-standard radio (MSR) radio node such as MSR BS, eNode B, network controller, radio network controller (RNC), base station controller (BSC), relay donor node controlling relay, base transceiver station (BTS), access point (AP), transmission points, transmission nodes, RRU, RRH, nodes in distributed antenna system (DAS), core network node (e.g. MSC, MME etc.), O&M, OSS, SON, positioning node (e.g. E-SMLC), MDT, or any suitable network node. Each of wireless communication device 110, network node 115, radio network controller 120, and core network node 130 include any suitable combination of hardware and/or software. Example embodiments of wireless devices 110, network nodes 115, and other network nodes (such as radio network controller or core network node) are described in more detail with respect to FIGURES 5, 10, and 14, respectively.

Although FIGURE 4 illustrâtes a particular arrangement of network 100, the présent disclosure contemplâtes that the various embodiments described herein may be applied to a variety of networks having any suitable configuration. For example, network 100 may include any suitable number of wireless devices 110 and network nodes 115, as well as any additional éléments suitable to support communication between wireless devices or between a wireless device and another communication device (such as a landline téléphoné). In certain embodiments, wireless communication device 110, network node 120, and core network node 130 use any suitable radio access technology, such as Long Term Evolution (LTE), LTE19336

Advanced, LTE-Advanced Pro, UMTS, HSPA, GSM, cdma2000, WiMax, Wi-Fi™, another suitable radio access technology, or any suitable combination of one or more radio access technologies. For purposes of example, various embodiments may be described within the context of certain radio access technologies. However, the scope of the disclosure is not limited to the examples and other embodiments could use different radio access technologies.

Certain exemplary deployment scénarios involving SRS carrier based switching are described. In certain embodiments, for example, wireless device 11 OA may be served by a first network node 115A with a primary serving cell (PCell) 140 operating on a first carrier frequency (fl). Wireless device 11 OA may also be capable of being served by a secondary serving cell (SCell) 150 also known as a first SCell. According to certain embodiments, wireless device 110A may further be capable of being served by two or more SCells 150. In such a scénario, the first SCell 150 may operate on a second carrier frequency (f2) and the second SCell 150 may operate on a third carrier frequency (β). The same applies for more than two SCells 150. As described herein, the carrier fl is interchangeably called as PCC, while carriers G, β, ..., f(n) may interchangeably be called as SCC1, SCC2, ..., SCC(n-l) etc., respectively.

In certain embodiments, fl, G, and β belong to the licensed spectrum. However, other combinations are also possible. For example, in certain embodiments, the carrier fl and β or may belong to a licensed spectrum or band, whereas G belongs to an unlicensed spectrum or frequency band. In an unlicensed spectrum or band, contention based transmission is allowed. As such, two or more devices (wireless device or network nodes) can access even the same part of spectrum based on certain faimess constraints. One such constraint may include listen-beforetalk (LBT). In this case, no operator (or user or transmitter) owns the spectrum. In a licensed spectrum or licensed band, only contention free transmission is allowed. Thus, only devices (wireless device or network nodes) allowed by the owner of the spectrum license can access the licensed spectrum. In one example scénario, ail carriers may be in unlicensed spectrum, or in a license shared spectrum or in a spectrum where LBT is required.

In certain embodiments, the CCs and the corresponding serving cells of a wireless device 110A may be ail in the same node 115. In another example, at least two of them may be in different nodes, which may be co-located or non-collocated.

In certain embodiments, ail the CCs and the corresponding serving cells of a wireless device 110A may be configured in the same timing advance group (TAG) such as for example, pTAG. In another example, some CCs and the corresponding serving cells of a wireless device 110A may be configured in one TAG such as pTAG and the remaining CCs may be configured in another TAG such as sTAG. In yet another example, the wireless device 110 may be configured with two or more TAGs.

The above scénarios may also include DC or multi-connectivity operation performed based on corresponding CA configurations, where PSCell in different embodiments may belong, for example, to a set of SCells.

In a further example, the first and the second SRS transmissions may include different SRS type. In another example, when the first and/or the second SRS transmission is a SRS switching transmission it has aperiodic SRS type (and may be triggered by SRS switching configuration); while when the first and/or the second SRS transmission is a non SRS switching transmission it may or may not has aperiodic SRS type.

In certain embodiments, the SRS switching may be controlled by the network node and/or by the wireless device.

Switching among carriers and/or antennas during SRS switching may also cause some interruptions, e.g., to PCell or activated SCell, which may be due to wireless device 11 OA reconfiguration such as configuring and/or activating target carriers (to which the SRS transmission is switched to), deconfiguring and/or deactivating source carriers (from which SRS transmission is switched), delays, reduced performance, etc.

FIGURE 5 illustrâtes an example wireless device 11OA-C for configuring measurement gaps and sounding reference signal switching, in accordance with certain embodiments. As depicted, wireless device 110A-C includes transceiver 210, processor 220, and memory 230. In some embodiments, transceiver 210 facilitâtes transmitting wireless signais to and receiving wireless signais from network node 115A-C (e.g., via an antenna), processor 220 executes instructions to provide some or ail of the functionality described above as being provided by wireless device 110A-C, and memory 230 stores the instructions executed by processor 220. Examples of a wireless device 110A-C are provided above.

Processor 220 may include any suitable combination of hardware and software implemented in one or more modules to execute instructions and manipulate data to perform some or ail of the described fùnctions of wireless device 110. In some embodiments, processor 220 may include, for example, processing circuitry, one or more computers, one or more central processing units (CPUs), one or more microprocessors, one or more applications, and/or other logic.

Memory 230 is generally opérable to store instructions, such as a computer program, software, an application including one or more of logic, rules, algorithms, code, tables, etc. and/or other instructions capable of being executed by a processor. Examples of memory 230 include computer memory (for example, Random Access Memory (RAM) or Read Only Memory (ROM)), mass storage media (for example, a hard disk), removable storage media (for example, a Compact Disk (CD) or a Digital Video Disk (DVD)), and/or or any other volatile or non-volatile, non-transitory computer-readable and/or computer-executable memory devices that store information.

Other embodiments of wireless device 110A-C may include additional components beyond those shown in FIGURE 5 that may be responsible for providing certain aspects of the wireless device’s functionality, including any of the functionality described above and/or any additional functionality (including any functionality necessary to support the solution described above).

In certain embodiments, wireless device 110A-C may include SRS carrier-based switching capabilities. SRS switching herein may include SRS transmissions over N multiple carriers for a spécifie purpose, where M<N, M is the UE capability of simultaneous/overlapping transmissions and N is the number of carriers with SRS transmissions, in certain embodiments. As described herein, the SRS switching further involves K<M carriers where K carriers may not be used for switching to/from (i.e., switching may not need to be activated/deactivated prior/after the SRS transmission).

According to certain embodiments, SRS carrier switching includes SRS switching for N - K carriers.

According to certain embodiments, SRS switching (a.k.a. SRS switching or switching SRS transmissions as described above) may involve at least one of:

• starting first SRS transmission(s) (or starting/resuming the using the corresponding SRS configuration), • stopping second SRS transmission(s) (or stopping/suspending the using the corresponding SRS configuration), where the first and second SRS transmissions may be on the same or different carrier frequencies and/or from the same or different one or more antennas or antenna ports.

The same or different carrier frequencies may belong to licensed and/or unlicensed spectrum, same RAT or different RATs. At least one of the first and the second transmissions include SRS switching transmission, but one of the first and the second transmissions may be SRS transmissions not including an SRS switching transmission but affected by the SRS switching transmission. In one example, the second SRS transmission (including non SRS switching transmission) is configured on the same carrier before the first SRS transmission (including a SRS switching transmission) is transmitted. In another example, the first and the second SRS transmissions include SRS switching transmissions, and the switching is from the second to the first SRS transmission which may be on different carriers. In yet another example, the first SRS transmission is non SRS switching transmission and it is transmitted after the second SRS transmission (including an SRS switching transmission) is switched e.g. to another carrier and/or antenna port (and is thus stopped or suspended on this carrier and/or antenna port). In yet another example, the first and the second SRS transmissions include SRS switching transmissions, and the switching is from the second to the first SRS transmission which may be on different antenna ports while on the same or different carriers. In yet another example, SRS switching may include carrier based SRS switching and/or antenna based SRS switching.

In a further example embodiment, the first and the second SRS transmissions may include different SRS types. In another example, when the first and/or the second SRS transmission is an SRS switching transmission it has aperiodic SRS type (and may be triggered by SRS switching configuration); while when the first and/or the second SRS transmission is a non SRS switching transmission it may or may not has aperiodic SRS type.

As described herein, the SRS switching may be controlled by the network node 115A-C and/or by the wireless device 110A-C.

Switching among carriers and/or antennas during SRS switching may also cause some interruptions, e.g., to PCell or activated SCell, which may be due to wireless device reconfiguration such as configuring and/or activating target carriers (to which the SRS transmission is switched to), deconfiguring and/or deactivating source carriers (from which SRS transmission is switched), delays, reduced performance, etc.

FIGURE 6 illustrâtes as an exemplary CC combination 300, according to certain embodiments. As depicted, there is an arrangement with 5DL CA and 2UL (or more UL) CA operation. This example shows a 5DL CA together with 2 UL CA, where one UL is fixed in the PCell and the SRS switching is done on one of the SCells (e.g., from SCell 1 to SCell2). So, at any point of time, it’s a 2UL CA combination. The same example scénario can also be shown with other numbers aggregated CCs in DL and UL, respectively. The carriers, such as for example, CCy, CCz, CCu, and CCv, may be in different bands also. For example, CCy can be in any band below 1GHz, CCz can be in any band around 2GHz and CCu can be any band in 3.5GHz. In the figure below, the CA combinations can be TDD-TDD and/or FDD-TDD.

The term ‘served or being served’ herein means that the wireless device 110A-C is configured with the corresponding serving cell and can receive from and/or transmit data to the network node 115A-C on the serving cell e.g. on PCell or any of the SCells. The data is transmitted or received via physical channels e.g. PDSCH in DL, PUSCH in UL etc.

The wireless device 110A-C may be requested to switch SRS transmission to one or more serving cells by the network 100. In some embodiments one or more SRS switching messages or commands may be received by the wireless device 110A-C via RRC signaling. In some embodiments one or more SRS switching messages or command may be received by the wireless device 110A-C via MAC CE command.

For example, according to certain embodiments, the following signaling may apply:

• receiving a first serving cell SRS switching request message or command from a second network node for switching SRS carrier from the first serving cell;

• receiving a second serving cell SRS switching request message or command from a third network node for switching SRS carrier from the second serving cell; and • receiving a third serving cell SRS switching request message or command from a fourth network node for switching SRS carrier from the third serving cell.

According to certain embodiments, at least some of the first, second, third and fourth network nodes are the same or are co-located at the same site or location. For example, in such embodiments, wireless device 110A-C may receive one or more messages or command for switching SRS carrier(s) from one or more serving cells from the first network node 115A-C. Also for example in such embodiments, wireless device 110A-C may receive one or more messages for SRS switching of one or more serving cells from the PCell.

According to certain embodiments, any combination of the first, second, third and fourth network nodes 115A-C may be located at different sites or locations or may be logically different nodes that may still be co-located. In such embodiments, wireless device 110A-C may receive one or more messages for SRS carrier switching from one or more serving cells from the respective serving cells.

The embodiments are described for at least one serving cell in unlicensed spectrum or in some cases for two serving cells with one on licensed and one on unlicensed spectrum or frequency bands. However the embodiments are applicable to any number of serving cells whereas at least one serving cell opérâtes on a CC belonging to an unlicensed spectrum or frequency band. The embodiments are also applicable for at least one or more serving cells in unlicensed spectrum where ail involved serving cells are in unlicensed spectrum.

FIGURES 7A-7F illustrate exemplary methods by a wireless device 11OA-C for configuring measurement gaps and sounding reference signal switching, in accordance with certain embodiments. Specifically, FIGURE 7A illustrâtes an exemplary method 400 in a wireless device 110A-C for configuring measurement gaps and SRS switching, in accordance with certain embodiments. The method begins at step 402 when a first configuration for transmitting at least one first radio signal subject to SRS switching is obtained by wireless device 110A.

According to a particular embodiment the at least one radio signal subject to SRS switching may include at least one RACH SRS signal. In certain embodiments, the first configuration may be received as a message, indication or configuration received from another node such as, for example, a network node via higher layers and/or physical layer. In particular embodiments, the first configuration may include a SRS carrier switching configuration, a SRS transmission configuration related to SRS switching, or another suitable SRS related configuration.

According to certain other embodiments, the first configuration may be a pre-defined configuration. For example, the first configuration may include a SRS switching pattern.

According to still other embodiments, the first configuration may be obtained in response to a triggering condition or event which may trigger one or more transmissions related to SRS switching. For example, in a particular embodiment, the collapse of a SRS transmission timer for any carrier may trigger the first configuration.

At step 404, wireless device 110A-C obtains a second configuration indicating a measurement gap for receiving at least one second radio signal. According to certain embodiments, the measurement gap may be network configured and/or UE configured. In other embodiments, the measurement gaps may be autonomous gaps.

According to certain embodiments, the second configuration may be received as a message, indication, or configuration received from another node such as, for example, a network node. For example, the second configuration may be include or be included with a measurement configuration, system information configuration.

According to certain other embodiments, the second configuration may be pre-defined. Alternatively, the second configuration may be obtained in response to the application of one or more rules. In a particular embodiment, the second configuration may include or be associated with a pre-defined configuration for transmissions in certain subframes and/or with certain periodicity of signais to be received to perform an operation such as, for example, SI reading, cell identification, positioning, or another suitable operation.

According to certain other embodiments, one or more triggering events and/or conditions may trigger one or more operations based on réception of radio signais which may need measurement gaps.

In still other embodiments, the second configuration may be determined based on UE capability. For example, the second configuration may relate to whether the wireless device 110A-C is capable of performing inter-frequency and/or inter-RAT measurements without measurement gaps in general or for a spécifie purpose.

At step 406, wireless device 110A-C adapts the first configuration for transmitting the at least one first radio signal subject to SRS switching while applying the second configuration. In a particular embodiment, wireless device 110A-C may receive the adapted first configuration from a network node 115A-C. According to a particular embodiment, wireless device 110A-C may transmit the adapted first configuration to a network node 115A-C or another wireless device 110A-C.

According to certain embodiments, the adapted first configuration changes a periodicity for switching between carriers to avoid or reduce an overlap with the measurement gap of the second configuration. According to certain other embodiments, adapting the first configuration may include obtaining at least one performance characteristic, requirement, or target and adapting the first configuration in accordance with said at least one performance characteristic, requirement, or target. According to a particular embodiment, for example, wireless device 110A-C may détermine that that one or more measurement requirements will be met while the wireless device 110A-C perforais measurements associated with the at least one second signal according to the second configuration and transmits the at least one first signal according to the adapted first configuration.

According to various particular embodiments, the adapted first configuration may identify a percentage of SRS transmissions allowed for transmission by the wireless device 11 OA-C, a percentage of SRS transmissions to be dropped by the wireless device 11 OA-C, a number of SRS transmissions allowed for transmission by the wireless device 110A-C, and/or a number of SRS transmissions to be dropped by the wireless device 110A-C. Additionally or alternatively, the adapted first configuration may identify a time resource for transmitting the at least one first signal to reduce an overlap with the measurement gap, a time resource for transmitting the at least one first signal that does not occur during the measurement gap, and/or a time resource for not transmitting the at least one first signal to avoid or reduce an overlap with the measurement gap.

Some examples of the performance characteristic, requirement or target are: intrafrequency, inter-frequency and/or inter-RAT measurement time, measurement period, cell identification, SI reading time, CGI identification time, positioning (e.g., OTDOA or E-CID) measurement period, RLM time, measurement accuracy (e.g. ± 3 dB of RSRP accuracy etc.), minimum number of identified cells to be measured by the wireless device 11OA-C, signal level down to which the requirement is to be met etc. The requirement may also be expressed in terms of the number of lost packets, This may further be expressed in terms of total number of missed ACK/NACK in response to continuous transmission of data to wireless device 11 OA-C from its serving cell over certain time period e.g. measurement time period.

According to various embodiments, the term requirements may also be interchangeably called as measurement requirement, performance requirement etc. Examples for radio measurement types are described above.

In embodiments, the adapted configuration may be obtained based on one or more of:

• Message/indication/configuration received from another node (e.g., network node), e.g., the UE may receive the adapted configuration or parameter(s) controlling how the UE would adapt;

• Pre-defined rule e.g. rules pre-defined in the standard.

• Priority(ies) (e.g., between SRS switching operation or transmissions related to SRS switching and using measurement gaps or operations that may need measurement gaps), e.g., the priorities may be pre-defined or received from another node or determined based on a pre-defined rule.

• History

In certain embodiments, the adapted configuration of transmission(s) of the first radio signais may include, for example, one or more of:

• Adapting carrier switching for SRS transmissions purpose (e.g., adapting the time when to switch to a carrier or from a carrier or switching periodicity, etc.), e.g., o Fully or partly avoiding or reducing the overlap between switching or related interruptions time with measurement gaps or adjacent to gaps time resources • Transmitting / not transmitting based on a priority (e.g., not transmitting SRS when measurement gaps are used in general or for a spécifie purpose) • Transmitting of at least N or X% of transmissions, • Dropping of at most M or Y% transmissions, • Transmitting in a time resource to avoid/reduce/minimize overlap with measurement gaps • Transmitting in a different (e.g., pre-defined or defined based on a rule) time resource than originally scheduled, to avoid overlap with measurement gaps • Not transmitting (e.g., avoiding transmitting or dropping a transmission) in one or more time resources following a measurement gap, e.g., o not transmitting in a subframe occurring immediately after the measurement gap, or o not transmitting in the uplink subframe occurring immediately after the measurement gap if the subframe occurring immediately before the measurement gap is a downlink subframe • Adapting the transmissions periodicity to the measurement gap configuration/periodicity, e.g., increasing the number of configured transmissions when the transmissions may overlap with measurement gaps (e.g., increasing the periodicity of SRS transmissions, e.g., to hâve it larger than the measurement gap periodicity) • Shifting transmissions related to SRS switching by at least V time resources relative to the time resources in which measurement gaps may be configured (e.g., to account for interruptions or delays in different UE components) • delaying, pausing, resuming the wireless device 11OA-C transmissions • Not transmitting SRS in a time resource which occurs during a measurement gap.

• Transmitting SRS in not more than certain number of time resources which occur during the gaps. Examples of such rules are:

o Transmitting SRS in not more than G out of H measurement gaps, where El may correspond to H consecutive measurement gaps. In another examples H may correspond to H number of measurement gaps occurring in certain time period (TO).

• Transmitting SRS in a reference time resource with respect to the measurement gaps. This rule is elaborated with following examples:

o Wireless device 11 OA-C is allowed to transmit SRS in a time resource occurring immediately before the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in a time resource occurring immediately after the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in a first available uplink time resource occurring immediately before the measurement gap. Examples of uplink time resources are uplink symbol, uplink subframe, spécial subframe, UpPTS etc.

o Wireless device 11 OA-C is allowed to transmit SRS in a first available uplink time resource occurring immediately after the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in a time resource occurring within PI time resources before the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in a time resource occurring within Q1 time resources after the measurement gap.

o Wireless device 110A-C is allowed to transmit SRS in an uplink time resource occurring within P1 time resources before the measurement gap.

o Wireless device 110A-C is allowed to transmit SRS in an uplink time resource occurring within Q1 time resources after the measurement gap.

• Wireless device 11 OA-C is allowed to transmit SRS in a measurement gap provided that the UE is not performing measurement in that measurement gap or if the UE has completed the measurements in gaps.

• Wireless device 11 OA-C is allowed to transmit SRS in a measurement gap provided that the UE can meet one or more requirements associated with the measurements performed using measurement gaps e.g. Wireless device 110A-C is allowed to transmit SRS in a measurement gap provided measurement time of the measurement is not extended.

• Wireless device 110A-C is allowed to transmit SRS on a carrier, Fl, in a measurement gap provided that wireless device 11 OA-C is also performing one or more measurements in Fl in the measurement gap.

• Wireless device 11 OA-C is allowed to transmit SRS on a carrier, Fl, in a measurement gap provided that wireless device 11 OA-C is also performing one or more measurements in Fl and the transmission of SRS in the gap shah not adversely affect the performance of the measurements on Fl in the gaps.

• Wireless device 110A-C is allowed to transmit SRS on a carrier, Fl, in a measurement gap provided that the wireless device 110A-C is also performing one or more measurements in Fl and the UE can still meet one or more requirements associated with the measurements performed on Fl in the gaps.

• Wireless device 110A-C may transmit SRS in a measurement gap however in this case wireless device 110A-C is allowed to meet a second set of measurement requirements for the measurement performed in measurement gaps. If wireless device 110A-C does not transmit SRS in a measurement gap then wireless device 110A-C is required to meet a first set of measurement requirements for the measurement performed in measurement gaps. The first set of measurement requirements is more stringent than the second set of measurement requirements. For example shorter measurement time (e.g. first set) is more stringent requirement compared to longer measurement time (e.g. second set).

• Wireless device 110A-C is allowed to transmit SRS in a measurement gap selectively e.g. when one or more conditions or criteria are met. For example;

o Wireless device 110A-C is allowed to transmit SRS in a measurement gap provided that wireless device 11OA-C has not transmitted SRS during the last J number of time resources.

o Wireless device 11 OA-C is allowed to transmit SRS in a measurement gap provided that the wireless device 11 OA-C has not transmitted SRS during the last L number of SRS transmission occasions.

o Wireless device 110A-C is allowed to transmit SRS on a carrier, Fl, in a measurement gap provided that the HARQ performance of DL signal réception on serving cell on Fl is worse than a threshold. For example if HARQ BLER for PDSCH réception is larger than Zl% then the UE is allowed to transmit SRS in a measurement gap e.g. in PI gaps every Q1 measurement gaps, or until HARQ BLER becomes lower than Z2% where Z2 < ZI.

• If wireless device 110A-C transmits SRS during the measurement time (Tl) but not in the gaps used for performing the measurement (i.e. wireless device 110A-C transmits SRS between the gaps or the time available for measurements on intra-frequency or serving carrier) then the minimum time available for serving carrier(s) frequency measurements (e.g. intra-frequency measurements) is reduced. In this case wireless device 110A-C is allowed to relax one or more intra-frequency measurement requirements. For example, wireless device 110A-C is allowed one or more of the following:

o Extend the measurement time (e.g. measurement period, cell search delay etc.) compared to the case when no SRS are transmitted during Tl, o Perform measurements on fewer numbers of cells on serving carrier(s) compared to the case when no SRS are transmitted during TL • If the SRS transmission coïncides with an autonomous gap used for acquiring system information of a cell, then wireless device 110A-C is not allowed to transmit SRS in that autonomous gap.

• If the SRS transmission coïncides with an autonomous gap used for acquiring system information (SI) of a cell, then wireless device 110A-C is allowed to transmit SRS in that autonomous gap. However, in this case wireless device 110A-C is allowed to extend the SI acquisition time.

• If wireless device 11OA-C transmits SRS during the SI acquisition time (T2) but not in the autonomous gaps used for acquiring the SI (i.e. wireless device 11 OA-C transmits SRS between the autonomous gaps) then wireless device 11 OA-C is allowed to meet a second set of requirement in terms of number (R2) of missed ACK/NACK transmissions by wireless device 11 OA-C under continuous DL allocation of data during T2, Wireless device 11 OA-C is required to meet a first set of requirement in terms of number (RI) of missed ACK/NACK transmissions by wireless device 11 OA-C under continuous DL allocation of data provided that wireless device 11 OA-C does not transmit any SRS during T2, where R2 < RL R2 may dépend on number of SRS transmitted during T2. For example, RI = 60 and R2 = 55 assuming SRS are transmitted in 5 time resources during T2.

• If the SRS transmission coïncides with an autonomous gap used for acquiring system information (SI) of a cell then:

o wireless device 110A-C is not allowed to transmit SRS in that autonomous gap and o if wireless device 110A-C transmits SRS during (T2) then wireless device 110AC is allowed to meet a second set of requirement in terms of number (R2) of missed ACK/NACK transmissions by wireless device 110A-C under continuous DL allocation of data during T2, Wireless device 110A-C is required to meet a first set of requirement in terms of number (RI) of missed ACK/NACK transmissions by wireless device 110A-C under continuous DL allocation of data provided that wireless device 110A-C does not transmit any SRS during T2, where R2 < RI as in the previous example.

In certain embodiments, some or any of the above rules may also apply, provided additional conditions are met:

• SRS is transmitted in a certain symbol of the subframe (e.g., when the SRS is transmitted in the last symbol of the subframe wireless device 110A-C can e.g. transmit this SRS in the subframe immediately after the measurement gap but not before the measurement gap; or when the SRS is transmitted not later than nth symbol of the subframe then it can be allowed to transmit before the measurement gap)

In certain embodiments, the adapted configuration of reception(s) of the second radio signais may include, for example, one or more of:

• Configuring in time resources for measurement gaps to avoid/reduce/minimize the overlap with transmissions related to SRS switching • Configuring measurement gap periodicity and/or length adaptively to the transmissions periodicity (e.g., reduce the length to avoid the overlap with SRS transmissions, increase the periodicity configuration e.g. from 40 ms to 80 ms) • Using measurement gaps based on priority (e.g., not using at least some measurement gaps giving the priority to SRS transmissions) • Dropping at most P or Q% of measurement gaps and corresponding radio signal réceptions • Using at least S or R% of measurement gaps • Performing the operation in time resources to avoid/reduce/minimize the overlap with transmissions related to SRS switching • Performing the operation without measurement gaps in some or ail subframes overlapping with the transmissions related to SRS switching • Shifting measurement gaps by at least W time resources relative to the time resources for transmissions related to SRS switching

At step 408, wireless device 110A-C transmits the at least one first radio signal subject to SRS switching in accordance with the adapted first configuration while applying the second configuration. According to certain embodiments, the at least one first signal is transmitted on a first carrier during the measurement gap without adversely affecting the performance of a measurement based on the at least one second signal received on the first carrier during the measurement gap according to the second configuration. Thus, according to certain embodiments, the first radio signal, which is subject to SRS switching, is transmitted according to the adapted configuration while respecting the measurement gaps associated with the second configuration such that any measurement requirement associated with the measurement gaps can be met.

FIGURE 7B illustrâtes another exemplary method 420 by a wireless device for configuring measurement gaps and SRS switching, in accordance with certain embodiments. The method begins at step 422 when wireless device 110A-C détermines the need to transmit one or more of first radio signais in relation to SRS switching (e.g., RACH SRS, etc.). In certain embodiments, the détermination may be based on one or more of:

• Message, indication or configuration received from another node (e.g., from a network node) via higher layers and/or physical layer, e.g., SRS carrier switching configuration, SRS transmission configuration related to SRS switching, etc.;

• Pre-defined configuration, e.g. SRS switching pattern; and • Triggering condition or event which may trigger one or more transmissions related to SRS switching, e.g. collapse of SRS transmission timer for any carrier, etc.

At step 424, wireless device 110A-C détermines the need to receive one or more of second radio signais while using measurement gaps. Measurement gaps may be network- and/or UE-configured gaps or autonomous gaps. The détermination may be based, for example, on one or more of:

• Message/indication/configuration received from another node (e.g., network node), including, for example, measurement configuration, system information configuration;

• Pre-defined configurations or rules;

• Configuration (which may be e.g. pre-defmed such as transmissions in certain subframes and/or with certain periodicity) of signais to be received to perform an operation (e.g., SI reading, cell identification, positioning);

• Triggering events and/or conditions, which may trigger one or more operations based on réception of radio signais which may need measurement gaps; and • UE capability, e.g., whether the UE is capable or not of performing inter-frequency and/or inter-RAT measurements without measurement gaps in general or for a spécifie purpose.

At step 426, wireless device 11OA-C obtains an adapted configuration for transmissions of the first radio signais and/or réception of the second radio signais. In a particular embodiment, wireless device 11 OA-C may further indicate the adapted configuration to another node (e.g., network node 115A-C or another UE 119A-C). For example, wireless device 110AC may recommend a measurement gap configuration or indicate a configuration which is used or to be used by wireless device 11 OA-C. In another particular embodiment, obtaining the adapted configuration may further include obtaining of at least one performance characteristic, requirement, or target. In still another embodiment, obtaining the adapted configuration may include performing the adaptation with respect to the obtained performance charact eri sti c/requirement/target.

Some examples of the performance characteristic, requirement or target are: intrafrequency, inter-frequency and/or inter-RAT measurement time, measurement period, cell identification, SI reading time, CGI identification time, positioning (e.g., OTDOA or E-CID) measurement period, RLM time, measurement accuracy (e.g. ± 3 dB of RSRP accuracy etc.), minimum number of identified cells to be measured by the wireless device 11 OA-C, signal level down to which the requirement is to be met etc. The requirement may also be expressed in terms of the number of lost packets. This may further be expressed in tenus of total number of missed ACK/NACK in response to continuous transmission of data to wireless device 110A-C from its serving cell over certain time period e.g. measurement time period.

The term requirements may also be interchangeably called as measurement requirement, performance requirement etc.

Examples for radio measurement types are described above.

In embodiments, obtaining the adapted configuration may be based on one or more of:

• Message/indication/configuration received from another node (e.g., network node), e.g., the UE may receive the adapted configuration or parameter(s) controlling how the UE would adapt;

• Pre-defmed rule e.g. rules pre-defined in the standard.

• Priority(ies) (e.g., between SRS switching operation or transmissions related to SRS switching and using measurement gaps or operations that may need measurement gaps), e.g., the priorities may be pre-defmed or received from another node or determined based on a pre-defmed rule.

• History

In certain embodiments, the adapted configuration of transmission(s) of the first radio signais may include, for example, one or more of:

• Adapting carrier switching for SRS transmissions purpose (e.g., adapting the time when to switch to a carrier or from a carrier or switching periodicity, etc.), e.g., o Fully or partly avoiding or reducing the overlap between switching or related interruptions time with measurement gaps or adjacent to gaps time resources • Transmitting/not transmitting based on priority (e.g., not transmitting SRS when measurement gaps are used for a spécifie purpose) • Transmitting of at least N or X% of transmissions, • Dropping of at most M or Y% transmissions, • Transmitting in a time resource to avoid/reduce/minimize overlap with measurement gaps • Transmitting in a different (e.g., pre-defmed or defined based on a rule) time resource than originally scheduled, to avoid overlap with measurement gaps • Not transmitting (e.g., avoiding transmitting or dropping a transmission) in one or more time resources following a measurement gap, e.g., o not transmitting in a subframe occurring immediately after the measurement gap, or o not transmitting in the uplink subframe occurring immediately after the measurement gap if the subframe occurring immediately before the measurement gap is a downlink subframe • Adapting the transmissions periodicity to the measurement gap configuration/periodicity, e.g., increasing the number of configured transmissions when the transmissions may overlap with measurement gaps (e.g., increasing the periodicity of SRS transmissions, e.g., to hâve it larger than the measurement gap periodicity) • Shifting transmissions related to SRS switching by at least V time resources relative to the time resources in which measurement gaps may be configured (e.g., to account for interruptions or delays in different UE components) • delaying, pausing, resuming the wireless device 11OA-C transmissions • Not transmitting SRS in a time resource which occurs during a measurement gap.

• Transmitting SRS in not more than certain number of time resources which occur during the gaps. Examples of such rules are:

o Transmitting SRS in not more than G out of H measurement gaps, where H may correspond to H consecutive measurement gaps. In another examples H may correspond to H measurement gaps occurring in certain time period (TO).

• Transmitting SRS in a reference time resource with respect to the measurement gaps. This rule is elaborated with following examples:

o Wireless device 11 OA-C is allowed to transmit SRS in a time resource occurring immediately before the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in a time resource occurring immediately after the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in a first available uplink time resource occurring immediately before the measurement gap. Examples of uplink time resources are uplink symbol, uplink subframe, spécial subframe, upPTS etc.

o Wireless device 11 OA-C is allowed to transmit SRS in a first available uplink time resource occurring immediately after the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in a time resource occurring within PI time resources before the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in a time resource occurring within Q1 time resources after the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in an uplink time resource occurring within PI time resources before the measurement gap.

o Wireless device 11 OA-C is allowed to transmit SRS in an uplink time resource occurring within Q1 time resources after the measurement gap.

• Wireless device 11 OA-C is allowed to transmit SRS in a measurement gap provided that the UE is not performing measurement in that measurement gap or if the UE has completed the measurements in gaps.

• Wireless device 11 OA-C is allowed to transmit SRS in a measurement gap provided that the UE can meet one or more requirements associated with the measurements performed using measurement gaps e.g. Wireless device 110A-C is allowed to transmit SRS in a measurement gap provided measurement time of the measurement is not extended.

• Wireless device 110A-C is allowed to transmit SRS on a carrier, Fl, in a measurement gap provided that wireless device 11 OA-C is also performing one or more measurements in Fl in the measurement gap.

• Wireless device 11 OA-C is allowed to transmit SRS on a carrier, Fl, in a measurement gap provided that wireless device 110A-C is also performing one or more measurements in Fl and the transmission of SRS in the gap shall not adversely affect the performance of the measurements on Fl in the gaps.

• Wireless device 110A-C is allowed to transmit SRS on a carrier, Fl, in a measurement gap provided that the wireless device 11 OA-C is also performing one or more measurements in Fl and the UE can still meet one or more requirements associated with the measurements performed on Fl in the gaps.

• Wireless device 110A-C may transmit SRS in a measurement gap however in this case wireless device 110A-C is allowed to meet a second set of measurement requirements for the measurement performed in measurement gaps. If wireless device 11OA-C does not transmit SRS in a measurement gap then wireless device 11 OA-C is required to meet a first set of measurement requirements for the measurement performed in measurement gaps. The first set of measurement requirements is more stringent than the second set of measurement requirements. For example shorter measurement time (e.g. First set) is more stringent requirement compared to longer measurement time (e.g. second set).

• Wireless device 11 OA-C is allowed to transmit SRS in a measurement gap selectively e.g. when one or more conditions or criteria are met. For example:

o Wireless device 11 OA-C is allowed to transmit SRS in a measurement gap provided that wireless device 11 OA-C has not transmitted SRS during the last J time resources.

o Wireless device 11 OA-C is allowed to transmit SRS in a measurement gap provided that the wireless device 11 OA-C has not transmitted SRS during the last L SRS transmission occasions.

o Wireless device 11 OA-C is allowed to transmit SRS on a carrier, Fl, in a measurement gap provided that the HARQ performance of DL signal réception on serving cell on Fl is worse than a threshold. For example if HARQ BLER for PDSCH réception is larger than Zl% then the UE is allowed to transmit SRS in a measurement gap e.g. in Pl gaps every Q1 measurement gaps, or until HARQ BLER becomes lower than Z2% where Z2 < ZI.

• If wireless device 110A-C transmits SRS during the measurement time (Tl) but not in the gaps used for performing the measurement (i.e. wireless device 110A-C transmits SRS between the gaps or the time available for measurements on intra-frequency or serving carrier) then the minimum time available for serving carrier(s) frequency measurements (e.g. intra-frequency measurements) is reduced. In this case wireless device 110A-C is allowed to relax one or more intra-frequency measurement requirements. For example, wireless device 110A-C is allowed one or more of the following:

o Extend the measurement time (e.g. measurement period, cell search delay etc.) compared to the case when no SRS are transmitted during Tl, o Perform measurements on fewer numbers of cells on serving carrier(s) compared to the case when no SRS are transmitted during Tl.

• If the SRS transmission coïncides with an autonomous gap used for acquiring system information of a cell, then wireless device 110A-C is not allowed to transmit SRS in that autonomous gap.

• If the SRS transmission coïncides with an autonomous gap used for acquiring system information (SI) of a cell, then wireless device 110A-C is allowed to transmit SRS in that autonomous gap. However in this case wireless device 110A-C is allowed to extend the SI acquisition time.

• If wireless device 11OA-C transmits SRS during the SI acquisition time (T2) but not in the autonomous gaps used for acquiring the SI (i.e. wireless device 11 OA-C transmits SRS between the autonomous gaps) then wireless device 11 OA-C is allowed to meet a second set of requirement in terms of number (R2) of missed ACK/NACK transmissions by wireless device 11 OA-C under continuous DL allocation of data during T2, Wireless device 11 OA-C is required to meet a first set of requirement in terms of number (RI) of missed ACK/NACK transmissions by wireless device 11 OA-C under continuous DL allocation of data provided that wireless device 110A-C does not transmit any SRS during T2, where R2 < RI. R2 may dépend on the number of SRS transmitted during T2. For example RI = 60 and R2 = 55 assuming SRS are transmitted in 5 time resources during T2.

• If the SRS transmission coïncides with an autonomous gap used for acquiring system information (SI) of a cell, then:

o wireless device 11 OA-C is not allowed to transmit SRS in that autonomous gap and o if wireless device 110A-C transmits SRS during (T2) then wireless device 110AC is allowed to meet a second set of requirement in terms of number (R2) of missed ACK/NACK transmissions by wireless device 110A-C under continuous DL allocation of data during T2, Wireless device 11OA-C is required to meet a first set of requirement in terms of number (RI) of missed ACK/NACK transmissions by wireless device 11 OA-C under continuous DL allocation of data provided that wireless device 11 OA-C does not transmit any SRS during T2, where R2 < RI as in the previous example.

In certain embodiments, some or any of the above rules may also apply, provided additional conditions are met:

• SRS is transmitted in a certain symbol of the subframe (e.g., when the SRS is transmitted in the last symbol of the subframe wireless device 11 OA-C can e.g. transmit this SRS in the subframe immediately after the measurement gap but not before the measurement gap; or when the SRS is transmitted not later than nth symbol of the subframe then it can be allowed to transmit before the measurement gap)

In certain embodiments, the adapted configuration of reception(s) of the second radio signais may include, for example, one or more of:

• Confîguring in time resources for measurement gaps to avoid/reduce/minimize the overlap with transmissions related to SRS switching • Confîguring measurement gap periodicity and/or length adaptively to the transmissions periodicity (e.g., reduce the length to avoid the overlap with SRS transmissions, increase the periodicity configuration e.g. from 40 ms to 80 ms) • Using measurement gaps based on priority (e.g., not using at least some measurement gaps giving the priority to SRS transmissions) • Dropping at most P or Q% of measurement gaps and corresponding radio signal réceptions • Using at least S or R% of measurement gaps • Performing the operation in time resources to avoid/reduce/minimize the overlap with transmissions related to SRS switching • Performing the operation without measurement gaps at least in some or ail subframes overlapping with the transmissions related to SRS switching • Shifting measurement gaps by at least W time resources relative to the time resources for transmissions related to SRS switching

At step 428, wireless device 11 OA-C may apply the adapted configuration. In certain embodiments, applying the adapted configuration may include, for example, transmitting one or more transmissions related to SRS switching and/or receiving one or more radio signais, based on the obtained adapted configuration. According to certain embodiments, the first radio signal, which is subject to SRS switching, is transmitted according to the adapted configuration while respecting the measurement gaps associated with the second configuration such that any measurement requirement associated with the measurement gaps can be met.

FIGURE 7C illustrâtes another exemplary method 440 by a wireless device 11 OA-C for configuring measurement gaps and SRS switching, in accordance with certain embodiments. The method may begin at step 442 when a first wireless device 11 OA-C, which may include a UE in particular embodiments, obtains a first configuration for transmitting at least one first radio signal, which is subject to SRS switching.

At step 444, the second wireless device 11 OA-C obtains a second configuration indicating a measurement gap for receiving at least one second radio signal.

At step 446, the second wireless device 11 OA-C obtains an adapted configuration for transmitting said at least one first radio signal, receiving said at least one second radio signal, or both. In certain embodiments, the adapted configuration may be obtained by obtaining at least one performance characteristic, requirement or target. Additionally or alternatively, the adapted configuration may be obtained by determining the adapted configuration in accordance with said at least one performance characteristic requirement or target.

At step 448, the second wireless device 11 OA-C transmits and/or receives in accordance with the adapted configuration. Thus, the first radio signal, which is subject to SRS switching, is transmitted according to the adapted configuration while respecting the measurement gaps associated with the second configuration such that any measurement requirement associated with the measurement gaps can be met.

Optionally, the method may include indicating the adapted configuration to a network node 115A-C or a second wireless device 11 OA-C.

FIGURE 7D illustrâtes another exemplary method 460 by a wireless device 11 OA-C for configuring measurement gaps and SRS switching, in accordance with certain embodiments. The method may begin at step 462 when a second wireless device 11 OA-C obtains a first configuration for receiving at least one first radio signal, which is subject to SRS switching.

At step 464, the second wireless device 11 OA-C receives from the first wireless device 11 OA-C an indication of an adapted configuration for receiving said at least one first radio signal.

At step 466, the second wireless device 11 OA-C receives from the first wireless device 110A-C said at least one first radio signal in accordance with the adapted configuration.

FIGURE 7E illustrâtes another exemplary method 480 by a wireless device 11 OA-C for configuring measurement gaps and SRS switching, in accordance with certain embodiments. The method may begin at step 482 when a first wireless device 11 OA-C obtains a first configuration for transmitting at least one first radio signal which is subject to SRS switching.

At step 484, the first wireless device 11 OA-C obtains a second configuration indication a measurement gap for receiving at least one second radio signal.

At step 486, the first wireless device 11 OA-C receives from a network node 115A-C an indication of an adapted configuration for transmitting said at least one first radio signal or receiving said at least one second radio signal or both.

At step 488, the first wireless device 11 OA-C transmits and/or receives in accordance with the adapted configuration. Thus, according to certain embodiments, the first radio signal, which is subject to SRS switching, is transmitted according to the adapted configuration while respecting the measurement gaps associated with the second configuration such that any measurement requirement associated with the measurement gaps can be met.

FIGURE 7F illustrâtes another exemplary method 490 by a second wireless device 11 OA-C for configuring measurement gaps and SRS switching, in accordance with certain embodiments. The method may begin at step 492 when a second wireless device 11 OA-C obtains a first configuration for receiving at least one first radio signal, which is subject to SRS switching from a first wireless device 11 OA-C.

At step 494, the second wireless device 11 OA-C receives from a network node 115A-C an indication of an adapted configuration for receiving said at least one first radio signal.

At step 496, the second wireless device 11 OA-C receives from the first wireless device 11 OA-C said at least one first radio signal in accordance with the adapted configuration.

In certain embodiments, the methods for configuring measurement gaps and sounding reference signal switching as described above may be performed by a virtual computing device. FIGURE 8 illustrâtes an example virtual computing device 500 for configuring measurement gaps and sounding reference signal switching, according to certain embodiments. In certain embodiments, virtual computing device 500 may include modules for performing steps similar to those described above with regard to any of the methods illustrated and described in FIGURE 7A. For example, virtual computing device 700 may include a first obtaining module 510, a second obtaining module 520, an adapting module 530, a transmitting module 540, and any other suitable modules for configuring measurement gaps and sounding reference signal switching as disclosed above with regard to FIGURE 7A. In some embodiments, one or more of the modules may be implemented using one or more processors 220 of FIGURE 5 to perform any of the steps described above. In certain embodiments, the functions of two or more of the various modules may be combined into a single module.

The first obtaining module 510 may perform certain of the obtaining functions of Virtual computing device 500. For example, in a particular embodiment, first obtaining module 510 may obtain a first configuration for transmitting at least one first radio signal subject to SRS switching.

The second obtaining module 520 may perform certain other of the obtaining functions of virtual computing device 500. For example, in a particular embodiment, second obtaining module 520 may obtain a second configuration indicating a measurement gap for receiving at least one second radio signal.

The adapting module 530 may perform the adapting functions of virtual computing device 500. For example, in a particular embodiment, adapting module 530 may adapt the first configuration for transmitting the at least one first radio signal subject to SRS switching while applying the second configuration.

The transmitting module 540 may perform the transmitting functions of virtual computing device 500. For example, in a particular embodiment, transmitting module 540 may transmit the at least one first radio signal subject to SRS switching in accordance with the adapted first configuration while applying the second configuration.

Other embodiments of virtual computing device 500 may include additional components beyond those shown in FIGURE 8 that may be responsible for providing certain aspects of the wireless device’s 11 OA-C functionality, including any of the functionality described above and/or any additional functionality (including any functionality necessary to support the solutions described above). Altematively, virtual computing device 500 may include fewer components. As just one example, a single obtaining module may perform the functions described above relating to first obtaining module 510 and second obtaining module 520, according to a particular embodiment. The various different types of wireless devices 11 OA-C may include components having the same physical hardware but configured (e.g., via programming) to support different radio access technologies, or may represent partly or entirely different physical components.

FIGURE 9 illustrâtes another example virtual computing device 600 for configuring measurement gaps and sounding reference signal switching, according to certain embodiments.

In certain embodiments, Virtual computing device 600 may include modules for performing steps similar to those described above with regard to any of the methods illustrated and described in FIGURES 7B-7F. For example, and just one example, Virtual computing device 600 may include at least one determining module 610, a obtaining module 620, an applying module 630, and any other suitable modules for configuring measurement gaps and sounding reference signal switching as disclosed above with regard to FIGURE 7B. In some embodiments, one or more of the modules may be implemented using one or more processors 220 of FIGURE 5 to perform any of the steps described above. In certain embodiments, the fonctions of two or more of the various modules may be combined into a single module.

The determining module 610 may perform the determining functions of Virtual computing device 600. For example, in a particular embodiment, determining module 610 may détermine the need to transmit one or more first radio signais in relation to SRS switching (e.g., RACH, SRS, etc.). As another example, determining module 610 or another determining module 610 may also détermine the need to receive one or more second radio signais while using measurement gaps.

The obtaining module 620 may perform the obtaining functions of Virtual computing device 600. For example, in a particular embodiment, obtaining module 620 may obtain an adapted configuration for transmissions of the first radio signais and/or réception of the second radio signais.

The applying module 630 may perform the applying functions of Virtual computing device 600. For example, in a particular embodiment, applying module 630 may apply the adapted configuration.

Other embodiments of Virtual computing device 600 may include additional components beyond those shown in FIGURE 6 that may be responsible for providing certain aspects of the wireless device’s 110A-C functionality, including any of the functionality described above and/or any additional functionality (including any functionality necessary to support the solutions described above). The various different types of wireless devices 110A-C may include components having the same physical hardware but configured (e.g., via programming) to support different radio access technologies, or may represent partly or entirely different physical components.

FIGURE 10 illustrate an example network node 115A-C for configuring measurement gaps and sounding reference signal switching, according to certain embodiments. As described above, network node 115A-C may be any type of radio network node or any network node that communicates with a wireless device and/or with another network node. Examples of a network node 115A-C are provided above.

Network nodes 115A-C may be deployed throughout network 100 as a homogenous deployment, heterogeneous deployment, or mixed deployment. A homogeneous deployment may generally describe a deployment made up of the same (or similar) type of network nodes 115A-C and/or similar coverage and cell sizes and inter-site distances. A heterogeneous deployment may generally describe deployments using a variety of types of network nodes 115A-C having different cell sizes, transmit powers, capacities, and inter-site distances. For example, a heterogeneous deployment may include a plurality of low-power nodes placed throughout a macro-cell layout. Mixed deployments may include a mix of homogenous portions and heterogeneous portions.

Network node 115A-C may include one or more of transceiver 710, processor 720, memory 730, and network interface 740. In some embodiments, transceiver 710 facilitâtes transmitting wireless signais to and receiving wireless signais from wireless device 110A-C (e.g., via an antenna), processor 720 executes instructions to provide some or ail of the functionality described above as being provided by a network node 115, memory 730 stores the instructions executed by processor 720, and network interface 740 communicates signais to backend network components, such as a gateway, switch, router, Internet, Public Switched Téléphoné Network (PSTN), core network nodes or radio network controllers, etc.

In certain embodiments, network node 115A-C may be capable of using multi-antenna techniques, and may be equipped with multiple antennas and capable of supporting ΜΙΜΟ techniques. The one or more antennas may hâve controllable polarization. In other words, each element may hâve two co-located sub éléments with different polarizations (e.g., 90 degree séparation as in cross-polarization), so that different sets of beamforming weights will give the emitted wave different polarization.

Processor 720 may include any suitable combination of hardware and software implemented in one or more modules to execute instructions and manipulate data to perform some or ail ofthe described fonctions of network node 115A-C. In some embodiments, processor 720 may include, for example, processing circuitry, one or more computers, one or more central processing units (CPUs), one or more microprocessors, one or more applications, and/or other logic.

Memory 730 is generally opérable to store instructions, such as a computer program, software, an application including one or more of logic, rules, algorithms, code, tables, etc. and/or other instructions capable of being executed by a processor. Examples of memory 730 include computer memory (for example, Random Access Memory (RAM) or Read Only Memory (ROM)), mass storage media (for example, a hard disk), removable storage media (for example, a Compact Disk (CD) or a Digital Video Disk (DVD)), and/or or any other volatile or non-volatile, non-transitory computer-readable and/or computer-executable memory devices that store information.

In some embodiments, network interface 740 is communicatively coupled to processor 720 and may refer to any suitable device opérable to receive input for network node 115A-C, send output from network node 115A-C, perform suitable processing of the input or output or both, communicate to other devices, or any combination of the preceding. Network interface 640 may include appropriate hardware (e.g., port, modem, network interface card, etc.) and software, including protocol conversion and data processing capabilities, to communicate through a network.

Other embodiments of network node 115A-C may include additional components beyond those shown in FIGURE 10 that may be responsible for providing certain aspects of the radio network node’s functionality, including any of the functionality described above and/or any additional functionality (including any functionality necessary to support the solutions described above). The various different types of network nodes may include components having the same physical hardware but configured (e.g., via programming) to support different radio access technologies, or may represent partly or entirely different physical components. Additionally, the terms first and second are provided for example purposes only and may be interchanged.

FIGURES 11A-11D illustrate exemplary methods by a radio node 115A-C, in accordance with certain embodiments. Specifïcally, FIGURE 11A illustrâtes an exemplary method 800 in a network node 115A-C for configuring measurement gaps and SRS switching, in accordance with certain embodiments. The method begins at step 802 when network node 115AC obtains a first configuration associated with a transmission of at least one first radio signal subject to SRS switching by a wireless device 110A-C.

At step 804, network node 115A-C obtains a second configuration indicating a measurement gap for receiving at least one second radio signal by the wireless device. In certain embodiments, the obtaining of the second configuration for receiving the second radio signais may be based, for example, on one or more of:

• Message or configuration received from another node (e.g., UE or another network node), e.g., with a UE-recommended configuration, UE capability, a configuration based on SON or O&M • Pre-defmed rules • History • Presence of UEs performing SRS switching and/or UEs which that may not be able to transmit during inter-frequency or inter-RAT operations • Priorities (e.g., adapt DL transmission configuration if SRS switching related transmissions hâve a higher priority)

At step 806, network node 115A-C adapts the first configuration for the transmission by the wireless device 11 OA-C of the at least one first radio signal subject to SRS switching while applying the second configuration. In a particular embodiment, network node 115A-C may receive the adapted first configuration from wireless device 11 OA-C.

According to certain embodiments, the adapted first configuration changes a periodicity for switching between carriers to avoid or reduce an overlap with the measurement gap of the second configuration. According to certain other embodiments, adapting the first configuration may include obtaining at least one performance characteristic, requirement, or target and adapting the first configuration in accordance with said at least one performance characteristic, requirement, or target. According to a particular embodiment, for example, network node 115AC may détermine that that one or more measurement requirements will be met while the wireless device 11 OA-C performs measurements associated with the at least one second signal according to the second configuration and transmits the at least one first signal according to the adapted first configuration.

According to varions particular embodiments, the adapted first configuration may identify a percentage of SRS transmissions allowed for transmission by the wireless device 11 OA-C, a percentage of SRS transmissions to be dropped by the wireless device 11 OA-C, a number of SRS transmissions allowed for transmission by the wireless device 11 OA-C, and/or a number of SRS transmissions to be dropped by the wireless device 11 OA-C. Additionally or alternatively, the adapted first configuration may identify a time resource for transmitting the at least one first signal to reduce an overlap with the measurement gap, a time resource for transmitting the at least one first signal that does not occur during the measurement gap, and/or a time resource for not transmitting the at least one first signal to avoid or reduce an overlap with the measurement gap.

According to certain embodiments, the adapting of first configuration may further include, for example, one or more of:

• Adapting for wireless devices not capable of receiving signais without measurement gaps • Adapting based on the capability of simultaneous transmissions/receptions by the wireless devices • Configuring the DL transmissions in time resources so to avoid/reduce/minimize the overlap with the wireless device’s transmissions related to SRS switching • Configuring signal periodicity adaptively to the wireless device transmissions periodicity (e.g., transmit more frequently in DL accounting for the inability to receive due to SRS transmissions) • Configuring wireless device operation or the beginning of the wireless device operation to avoid/reduce/minimize the overlap with the transmissions related to SRS switching, • Ensuring that an offset between the DL transmissions and transmissions related to SRS switching is at least W time resources • Delaying/postponing/resuming transmissions

At step 808, network node 115A-C transmits the adapted first configuration to the wireless device 11 OA-C. According to certain embodiments, the first radio signal, which is subject to SRS switching, is transmitted according to the adapted configuration while respecting the measurement gaps associated with the second configuration such that any measurement requirement associated with the measurement gaps can be met. Thus, the first radio signal, which is subject to SRS switching, is transmitted according to the adapted configuration while respecting the measurement gaps associated with the second configuration such that any measurement requirement associated with the measurement gaps can be met.

FIGURE 1 IB illustrâtes an exemplary method 820 by a radio node that begins at step 822 when network node 115A-C détermines for at least one wireless device 11 OA-C the need to transmit one or more of first radio signais in relation to SRS switching (e.g., RACH, SRS, etc.). In certain embodiments, this step may be as was described above in FIGURE 7B related to wireless device 11 OA-C. In still other embodiments, network node 115A-C may be aware of the wireless device’s transmission configuration and/or SRS switching configuration and may, thus, détermine the need.

At step 824, network node f 15A-C may détermine for the at least one wireless device 11 OA-C the need to receive one or more of second radio signais while using measurement gaps. In certain embodiments, this step may be as was described above in FIGURE 7B related to wireless device 11 OA-C. In another embodiment, network node 115A-C may be aware of the transmission configuration of the signais wireless device 11 OA-C is going to receive and may thus déterminé the need. In still other embodiments, the determining step may include network node 115A-C additionally or alternatively using the capability information received from wireless device 110A-C

At step 826, network node 115A-C may obtain an adapted configuration for wireless device’s 11 OA-C transmissions of the first radio signais and/or wireless device’s réception of the second radio signais and/or transmission configuration of the second radio signais. In certain embodiments, network node 115A-C may obtain at least one performance characteristic, requirement, or target. In other embodiments, network node 115A-C may perform the adaptation with respect to the obtained performance characteristic/requirement/target. Again, the methods and rules may be similar to those described above with regard to FIGURE 7B related to wireless device 11 OA-C.

In certain embodiments, the obtaining of the transmission configuration of the second radio signais may be based, for example, on one or more of:

• Message or configuration received from another node (e.g., UE or another network node), e.g., with a UE-recommended configuration, UE capability, a configuration based on SON or O&M • Pre-defined rules • History • Presence of UEs performing SRS switching and/or UEs which that may not be able to transmit during inter-frequency or inter-RAT operations • Priorities (e.g., adapt DL transmission configuration if SRS switching related transmissions hâve a higher priority)

The adapting of transmission configuration of the second radio signais may further include, for example, one or more of:

• Adapting to suit UEs which are not capable of receiving signais without measurement gaps • Adapting based on the UE capability of simultaneous transmissions/receptions • Configuring the DL transmissions in time resources so to avoid/reduce/minimize the overlap with the UE’s transmissions related to SRS switching • Configuring signal periodicity adaptively to the UE transmissions periodicity (e.g., transmit more frequently in DL accounting for the inability to receive due to SRS transmissions) • Configuring UE operation or the beginning of the UE operation to avoid/reduce/minimize the overlap with the transmissions related to SRS switching, • Ensuring that an offset between the DL transmissions and transmissions related to SRS switching is at least W time resources • Delaying/postponing/resuming transmissions

At step 828, network node 115A-C may apply the adapted configuration. In certain embodiments, applying of the adapted configuration may include, for example, based on the adapted configuration, configuring one or more of: SRS switching, transmissions related to SRS switching, measurement gaps, second radio signais transmissions.

At step 830,*network node 115 A-C may obtain a resuit obtained based on the adapted configuration, for example, a measurement resuit from wireless device 11 OA-C, a radio signal transmission from wireless device 11 OA-C, the wireless device’s measurement gap configuration, etc.

FIGURE 11C illustrâtes another exemplary method 840 by a network node 115A-C for configuring measurement gaps and SRS switching, in accordance with certain embodiments. The method may begin at step 842 when a network node obtains a second configuration indicating a measurement gap for transmitting at least one second radio signal to a first wireless device 11 OA-C applying SRS switching. The first wireless device 11 OA-C may include a UE in a particular embodiment.

At step 844, the network node 115A-C receives from the first wireless device 11 OA-C an indication of an adapted configuration for transmitting said at least one second radio signal.

At step 846, the network node 115A-C transmits to the first wireless device 11 OA-C said at least one second radio signal in accordance with the adapted configuration. Thus, according to certain embodiments, the first radio signal, which is subject to SRS switching, is transmitted according to the adapted configuration while respecting the measurement gaps associated with the second configuration such that any measurement requirement associated with the measurement gaps can be met.

FIGURE 11D illustrâtes another exemplary method 860 by a network node 115A-C for configuring measurement gaps and SRS switching, in accordance with certain embodiments. The method may begin at step 862 when a network node 115A-C obtains a first configuration pertaining to a first wireless device’s transmitting at least one first radio signal which is subject to SRS switching. The first wireless device 11 OA-C may include a UE in a particular embodiment.

At step 864, the network node 115A-C obtains a second configuration indicating a measurement gap pertaining to the first wireless device’s 11 OA-C receiving at least one second radio signal.

At step 866, the network node 115A-C obtains an adapted configuration pertaining to the first wireless device’s 11 OA-C transmitting said at least one first radio signal or receiving said at least one second radio signal or both.

At step 868, the network node 115A-C indicates the adapted configuration to the first wireless device 11 OA-C.

In certain embodiments, the methods for configuring measurement gaps and sounding reference signal switching as described above may be performed by a Virtual computing device. FIGURE 12 illustrâtes an example Virtual computing device 900 for configuring measurement gaps and sounding reference signal switching, according to certain embodiments. In certain embodiments, Virtual computing device 900 may include modules for performing steps similar to those described above with regard to any of the methods illustrated and described in FIGURE 11 A. For example, virtual computing device 900 may include a first obtaining module 910, a second obtaining module 920, an adapting module 930, a transmitting module 940, and any other suitable modules for confîguring measurement gaps and sounding reference signal switching as disclosed above with regard to FIGURE 11 A. In some embodiments, one or more of the modules may be implemented using one or more processors 720 of FIGURE 10 to perform any of the steps described above. In certain embodiments, the functions of two or more of the various modules may be combined into a single module.

The first obtaining module 910 may perform certain of the obtaining functions of virtual computing device 900. For example, in a particular embodiment, first obtaining module 910 may obtain a first configuration associated with a transmission of at least one first radio signal subject to SRS switching by a wireless device 11 OA-C.

The second obtaining module 920 may perform certain other of the obtaining functions of virtual computing device 900. For example, in a particular embodiment, second obtaining module 920 may obtain a second configuration indicating a measurement gap for receiving at least one second radio signal by the wireless device 11 OA-C.

The adapting module 930 may perform the adapting functions of virtual computing device 900. For example, in a particular embodiment, adapting module 930 may adapt the first configuration for transmitting the at least one first radio signal subject to SRS switching while applying the second configuration.

The transmitting module 940 may perform the transmitting fùnctions of virtual computing device 900. For example, in a particular embodiment, transmitting module 940 may transmit the adapted first configuration to the wireless device 11 OA-C.

Other embodiments of virtual computing device 900 may include additional components beyond those shown in FIGURE 12 that may be responsible for providing certain aspects of the network node’s 115A-C functionality, including any of the functionality described above and/or any additional functionality (including any functionality 900 may include fewer components. As just one example, a single obtaining module may perform the functions described above relating to first obtaining module 910 and second obtaining module 920, according to a particular embodiment. The various different types of network nodes 115A-C may include components having the same physical hardware but configured (e.g., via programming) to support different radio access technologies, or may represent partly or entirely different physical components.

FIGURE 13 illustrâtes another example virtual computing device 1000 for confîguring measurement gaps and sounding reference signal switching, according to certain embodiments. In certain embodiments, Virtual computing device 1000 may include modules for performing steps similar to those described above with regard to any of the methods illustrated and described in FIGURES 11B-11D. For example, and just one example, virtual computing device 1000 may include at least one determining module 1010, a obtaining module 1020, an applying module 1014, and any other suitable modules for configuring measurement gaps and sounding reference signal switching as disclosed above with regard to FIGURE 11 B. In some embodiments, one or more of the modules may be implemented using one or more processors 720 of FIGURE 10 to perform any of the steps described above. In certain embodiments, the functions of two or more of the various modules may be combined into a single module.

The determining module 1010 may perform the determining functions of virtual computing device 1000. For example, in a particular embodiment, determining module 1010 may détermine the need to transmit one or more first radio signais in relation to SRS switching (e.g., RACH, SRS, etc.). As another example, determining module 1010 or another determining module 1010 may also détermine the need to receive one or more second radio signais while using measurement gaps.

The obtaining module 1020 may perform the obtaining functions of virtual computing device 1000. For example, in a particular embodiment, obtaining module 1020 may obtain an adapted configuration for transmissions of the first radio signais and/or réception of the second radio signais. As another example, obtaining module 1020 may obtain a resuit obtained based on the adapted configuration after it is applied. For example obtaining module 1020 may obtain a measurement resuit from wireless device 11 OA-C.

The applying module 1030 may perform the applying functions of virtual computing device 1000. For example, in a particular embodiment, applying module 1030 may apply the adapted configuration.

Other embodiments of virtual computing device 1000 may include additional components beyond those shown in FIGURE 13 that may be responsible for providing certain aspects of the network node’s 115A-C functionality, including any of the functionality described above and/or any additional functionality (including any functionality necessary to support the solutions described above). The various different types of network nodes 115A-C may include components having the same physical hardware but configured (e.g., via programming) to support different radio access technologies, or may represent partly or entirely different physical components.

FIGURE 14 illustrâtes an exemplary radio network controller or core network node 1100, in accordance with certain embodiments. Examples of network nodes can include a mobile switching center (MSC), a serving GPRS support node (SGSN), a mobility management entity (MME), a radio network controller (RNC), a base station controller (BSC), and so on. The radio network controller or core network node 1100 include processor 1120, memory 1130, and network interface 1140. In some embodiments, processor 1120 executes instructions to provide some or ail of the functionality described above as being provided by the network node, memory 1130 stores the instructions executed by processor 1120, and network interface 1140 communicates signais to any suitable node, such as a gateway, switch, router, Internet, Public Switched Téléphoné Network (PSTN), network nodes 115, radio network controllers or core network nodes 900, etc.

Processor 1120 may include any suitable combination of hardware and software implemented in one or more modules to execute instructions and manipulate data to perform some or ail ofthe described functions of the radio network controller or core network node 1100. In some embodiments, processor 1120 may include, for example, processing circuitry, one or more computers, one or more central processing units (CPUs), one or more microprocessors, one or more applications, and/or other logic.

Memory 1130 is generally opérable to store instructions, such as a computer program, software, an application including one or more of logic, rules, algorithms, code, tables, etc. and/or other instructions capable of being executed by a processor. Examples of memory 1130 include computer memory (for example, Random Access Memory (RAM) or Read Only Memory (ROM)), mass storage media (for example, a hard disk), removable storage media (for example, a Compact Disk (CD) or a Digital Video Disk (DVD)), and/or or any other volatile or non-volatile, non-transitory computer-readable and/or computer-executable memory devices that store information.

In some embodiments, network interface 1140 is communicatively coupled to processor 1120 and may refer to any suitable device opérable to receive input for the network node, send output from the network node, perform suitable processing of the input or output or both, communicate to other devices, or any combination of the preceding. Network interface 1140 may include appropriate hardware (e.g., port, modem, network interface card, etc.) and software, including protocol conversion and data processing capabilities, to communicate through a network.

Other embodiments of the network node may include additional components beyond those shown in FIGURE 14 that may be responsible for providing certain aspects of the network node’s functionality, including any of the functionality described above and/or any additional functionality (including any functionality necessary to support the solution described above).

Modifications, additions, or omissions may be made to the Systems and apparatuses described herein without departing from the scope of the disclosure. The components of the Systems and apparatuses may be integrated or separated. Moreover, the operations of the Systems and apparatuses may be performed by more, fewer, or other components. Additionally, operations of the Systems and apparatuses may be performed using any suitable logic comprising 5 software, hardware, and/or other logic. As used in this document, “each” refers to each member of a set or each member of a subset of a set.

Modifications, additions, or omissions may be made to the methods described herein without departing from the scope of the disclosure. The methods may include more, fewer, or other steps. Additionally, steps may be performed in any suitable order.

Although this disclosure has been described in ternis of certain embodiments, alterations and permutations of the embodiments will be apparent to those skilled in the art. Accordingly, the above description of the embodiments does not constrain this disclosure. Other changes, substitutions, and alterations are possible without departing from the spirit and scope of this disclosure, as defined by the following claims.

Claims (15)

1. A method implemented in a wireless device for configuring measurement gaps and sounding reference signal (SRS) switching, comprising:

5 obtaining a first configuration for transmitting at least one first radio signal subject to

SRS switching, wherein the first configuration comprises SRS transmission configuration related to the SRS switching among carriers and/or antennas, the first radio signal is a random-access channel, RACH, SRS signal;

10 obtaining a second configuration indicating a measurement gap for receiving at least one second radio signal;

adapting the first configuration for transmitting the at least one first radio signal subject to SRS switching while applying the second configuration; and transmitting the at least one first radio signal subject to SRS switching in accordance with 15 the adapted first configuration while applying the second configuration.

2. The method of Claim 1, wherein the adapted first configuration changes a periodicity for switching between carriers to avoid or reduce an overlap with the measurement gap of the second configuration.

3. The method of any one of Claims 1 to 2, further comprising performing a détermination that one or more measurement requirements will be met while the wireless device performs measurements associated with the at least one second signal according to the second configuration and transmits the at least one first signal according to the adapted first 25 configuration.

4. The method of Claim 3, wherein:

the at least one first signal is transmitted, according to the adapted first configuration, on a first carrier during the measurement gap without adversely affecting the performance of a 30 measurement based on the at least one second signal received on the first carrier during the measurement gap according to the second configuration.

5. The method of any one of Claims 1 to 4, wherein the adapted first configuration identifies at least one of:

35 a percentage of SRS transmissions allowed for transmission by the wireless device;

” 19336 ' , 43 ' . a percentage of SRS transmissions to be dropped by the wireless device;

a number of SRS transmissions allowed for transmission by the wireless device; and a number of SRS transmissions to be dropped by the wireless device.

5

6. The method of any one of Claims 1 to 4, wherein the adapted first configuration identifies at least one of:

a time resource for transmitting the at least one first signal to reduce an overlap with the measurement gap;

a time resource for transmitting the at least one first signal that does not occur during the 10 measurement gap; and a time resource for not transmitting the at least one first signal to avoid or reduce an overlap with the measurement gap.

7. The method of any one of Claims 1 to 6, wherein adapting the first configuration

15 comprises:

obtaining at least one performance characteristic, requirement, or target; and adapting the first configuration in accordance with said at least one performance characteristic, requirement, or target.

20

8. The method of any one of Claims 1 to 7, further comprising:

transmitting the adapted first configuration to a network node or another wireless device.

9. The method of any one of Claims 1 to 8, further comprising: receiving the adapted first configuration from a network node.

10. A wireless device for configuring measurement gaps and sounding reference signal (SRS) switching, the wireless device comprising:

a memory storing instructions; and a processor opérable to execute the instructions to cause the wireless device to:

30 obtain a first configuration for transmitting at least one first radio signal subject to

SRS switching, wherein the first configuration comprises SRS transmission configuration related to the SRS switching among carriers and/or antennas, the first radio signal is a random-access channel, RACH, SRS signal;

' . obtain a second configuration indicating a measurement gap for receiving at least one second radio signal;

adapt the first configuration for transmitting the at least one first radio signal subject to SRS switching while applying the second configuration; and transmit the at least one first radio signal subject to SRS switching in accordance with the adapted first configuration while applying the second configuration.

11. A method implemented in a network node for configuring measurement gaps and sounding reference signal (SRS) switching, comprising:

obtaining a first configuration associated with a transmission of at least one first radio signal subject to SRS switching by a wireless device, wherein the first configuration comprises SRS transmission configuration related to the SRS switching among carriers and/or antennas, the first radio signal is a random-access channel, RACH, SRS signal;

obtaining a second configuration indicating a measurement gap for receiving at least one second radio signal by the wireless device;

adapting the first configuration for the transmission by the wireless device of the at least one first radio signal subject to SRS switching while applying the second configuration; and transmitting the adapted first configuration to the wireless device.

12. The method of Claim 11, wherein the adapted first configuration changes a periodicity for switching between carriers to avoid or reduce an overlap with the measurement gap of the second configuration.

13. The method of any one of Claims 11 to 12, further comprising:

performing a détermination that the wireless device is able to meet one or more measurement requirements while the wireless device performs measurements associated with the at least one second signal according to the second configuration and transmits the at least one first signal according to the adapted first configuration.

14. The method of Claim 13, wherein:

the least one first signal may be transmitted by the wireless device, according to the adapted first configuration, on a first carrier during the measurement gap without adversely affecting the performance of a measurement based on the at least one second signal received, according to the second configuration, on the first carrier during the measurement gap.

' 45 _s » » * ' ¹

15. A network node for configuring measurement gaps and sounding reference signal (SRS) switching, the network node comprising:

a memory storing instructions; and

5 a processor opérable to execute the instructions to cause the network node to:

obtain a first configuration associated with a transmission of at least one first radio signal subject to SRS switching by a wireless device, wherein the first configuration comprises SRS transmission configuration related to the SRS switching among carriers and/or antennas, the first radio signal is a random-access 10 channel, RACH, SRS signal;

obtaining a second configuration indicating a measurement gap for receiving at least one second radio signal by the wireless device;

adapting the first configuration for the transmission by the wireless device of the at least one first radio signal subject to SRS switching while applying the second configuration;

15 and transmitting the adapted first configuration to the wireless device.