EP-3934352-B1 - RESOURCE ALLOCATION SIGNALING

Inventors

• PARKVALL, STEFAN
• CHEN LARSSON, Daniel
• BALDEMAIR, ROBERT

Dates

Publication Date

20260506

Application Date

20170331

Claims (6)

1. Method of operating an allocating radio node (100) in a Radio Access Network, the method comprising transmitting, to a user equipment (10), UE, a message comprising allocation information, the message having an allocation information structure containing the allocation information, the allocation information structure comprising a bitmap of B bits containing mapping information; the frequency resources being in a bandwidth of N resource blocks in frequency domain for transmitting the uplink data, the bandwidth being a specific part of the carrier bandwidth configured to the UE, the mapping information pertaining to the specific part of the carrier bandwidth; a resource block group (RBG) size R in frequency domain being associated to the specific part of the carrier bandwidth, R representing the number of resource blocks in an RBG, R being dependent on the specific part of the carrier bandwidth configured to the UE; each bit of the B bits of the bit map being mapped to a different RBG of size R to indicate whether the RBG is allocated as frequency resource for transmission or not; characterised in that R has a value of a power of 2, wherein further R is an element of a configured set of RBG sizes, the RBG sizes of the configured set relating to each other according to a power of 2..
2. Allocating radio node (100) for a Radio Access Network, the allocating radio node (100) being adapted for transmitting, to a user equipment (10), UE, a message comprising allocation information, the message having an allocation information structure containing the allocation information; the allocation information structure comprising a bitmap of B bits containing mapping information; the frequency resources being in a bandwidth of N resource blocks in frequency domain for transmitting the uplink data, the bandwidth being a specific part of the carrier bandwidth configured to the UE, the mapping information pertaining to the specific part of the carrier bandwidth; a resource block group (RBG) size R in frequency domain being associated to the specific part of the carrier bandwidth, R representing the number of resource blocks in an RBG, R being dependent on the specific part of the carrier bandwidth configured to the UE; each bit of the B bits of the bit map being mapped to a different RBG of size R to indicate whether the RBG is allocated as frequency resource for transmission or not; characterised in that R has a value of a power of 2, wherein further R is an element of a configured set of RBG sizes, the RBG sizes of the configured set relating to each other according to a power of 2..
3. Method or device according to one of the preceding claims, wherein the allocation information structure comprises a header for header information indicating at least one resource grouping type to be allocated.
4. Method or device according to one of the preceding claims, wherein the allocation information allocates frequency resources of a bandwidth to the user equipment (10) for communicating.
5. Program product comprising instructions causing processing circuitry to control and/or perform a method according to one of claims 1, 3, or 4.
6. Carrier medium arrangement carrying and/or storing a program product according to claim 5.

Description

Technical Field This disclosure pertains to wireless communication technology, in particular in the context of Radio Access Networks (RAN), e.g. for a 3GPP 5th generation (5G) standard like New Radio (NR). Background Modern wireless telecommunication systems, e.g. according to NR, are capable of using wide frequency ranges for communication. A device communicating utilising such a system will use a part of the frequency range/s for transmitting and receiving according to a resource allocation (or scheduled resources). Such allocation is usually signaled with control signaling. It is challenging to define consistent control signaling that is able to flexibly cover wide frequency ranges while having an acceptable level of signaling overhead. The following documents provide background art in the field of resource allocation by scheduling information: US 2016/006551 A1 (LEE DAE WON [KR] ET AL) 7 January 2016US 2012/087331 A1 (SEO DONG YOUN [KR] ET AL) 12 April 2012US 2013/121278 A1 (NOH MIN SEOK [KR] ET AL) 16 May 2013EP 3 494 747 A1 (HUAWEI TECH CO LTD [CN]) 12 June 2019. Summary The invention is defined in the appended independent claims. Specific realisations of the invention representing particular embodiments are defined in the appended dependent claims. It is an object of the present disclosure to describe approaches of utilising consistent allocation signaling with limited overhead over a wide range of frequencies, which at the same time allows flexible allocation of resources, in particular considering different allocation sizes. The approaches described herein are particularly useful in the context of NR Radio Access Technology/Networks (NR RAT/RAN). Thus, an allocating radio node or a network node may in particular a gNB (or eNB in some cases). Accordingly, there is described a method of operating a radio node in a Radio Access Network. The method comprises communicating utilising frequency resources based on allocation information received in a message, the message having an allocation information structure containing the allocation information. Moreover, a radio node for a Radio Access Network may be considered. The radio node may be adapted for communicating utilising frequency resources based on allocation information received in a message, the message having an allocation information structure containing the allocation information. The radio node may in particular be a user equipment or terminal, or more generally an allocated radio node, which may get resources allocated (configured) to it by another (allocating) radio node. Such an allocated radio node may for example be a relay node, or a booster node or secondary node, for example in a dual connectivity and/or heterogeneous network arrangement. The radio node or allocated radio node may comprise, and/or be adapted for utilising, processing circuitry and/or radio circuitry, in particular a transmitter and/or receiver and/or transceiver, for communicating and/or receiving the message. Alternatively, or additionally, the radio node may comprise a communicating module for communicating and/or a receiving module for receiving the message. Also, there is described a method of operating an allocating radio node in a Radio Access Network. The method comprises transmitting a message comprising allocation information, the message having an allocation information structure containing the allocation information. The method may also comprise determining the allocation information, e.g. based on and/or in the context of scheduling one or more (allocated) radio nodes, which may be performed by the allocating radio node or another node. Generally, scheduling may be seen as a process in which resources are distributed for radio nodes and/or data streams (which may be associated to radio nodes). In the context described here, allocating may pertain to informing a radio node about resources scheduled for it, e.g. by transmitting the message comprising the allocation information. An allocating radio node for a Radio Access Network may be considered. The allocating radio node is adapted for transmitting a message comprising allocation information, the message having an allocation information structure containing the allocation information. The allocating radio node may comprise, and/or be adapted for utilising, processing circuitry and/or radio circuitry, in particular a transmitter and/or transceiver, for transmitting the message and/or determining the allocation information. Alternatively, or additionally, the allocating radio node may comprise a transmitting module for transmitting the message and/or a determining module for determining the message. The allocating radio node may in particular be a network node. Allocation information may generally be considered a form of control information. The message may be a control information message and/or represent control signaling. In particular, the message may be implemented as Downlink Control Information (DCI) me